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
210-065
New Plugback Esets 7/15/2024 Well Name API Number PTD Number ESet Number Date CRU C1-07 PB2 50-103-20478-71-00 203-225 T39188 1-29-2007 CRU CD2-467 PB1 50-103-20579-70-00 208-114 T39189 10-31-2008 CRU CD4-12 PB1 50-103-20414-70-00 210-091 T39190 9-20-2010 CRU CD4-210A PB1 50-103-20533-70-00 211-072 T39191 9-9-2011 KRU 1B-15AL3 PB1 50-029-22465-72-00 207-067 T39192 11-23-2009 KRU 1E-12L1 PB1 50-029-20736-70-00 210-004 T39193 5-24-2010 KRU 1E-12L2-01 PB1 50-029-20736-72-00 210-007 T39194 5-24-2010 KRU 3H-12A PB1 50-103-20088-70-00 211-081 T39195 9-9-2012 KRU 3I-11AL2 PB1 50-029-21932-70-00 210-076 T39196 11-1-2010 ODSK-33 PB1 50-703-20562-70-00 207-183 T39197 6-20-2008 OI11-01 50-029-23430-70-00 210-106 T39198 11-2-2010 OP04-07 PB1 50-029-23409-70-00 208-199 T39200 7-6-2010 OP08-04 PB1 50-029-23424-70-00 210-041 T39201 7-28-2010 PBU 06-02A PB1 50-029-20282-70-00 211-026 T39202 7-25-2011 PBU 15-05B PB1 50-029-20731-71-00 211-057 T39203 8-20-2011 PBU 15-16B PB1 50-029-21115-70-00 210-020 T39204 7-8-2010 PBU 18-04B PB1 50-029-20875-70-00 201-090 T39205 12-6-2002 PBU J-16B PB1 50-029-20967-70-00 212-014 T39206 9-28-2012 PBU K-05D PB1 50-029-21418-71-00 211-077 T39207 1-20-2012 PBU V-204L1 50-029-23217-60-00 204-132 T39208 11-13-2006 PBU W-19B PB1 50-029-22006-72-00 210-065 T39209 1-13-2011 PBU W-19BL1 PB1 50-029-22006-73-00 210-066 T39210 1-18-1011 SP23-N03 PB1 50-629-23456-70-00 211-127 T39211 3-5-2012 TBU M-10 PB1 50-733-20588-70-00 209-154 T39212 4-23-2010 PBU W-WW 19B PB1 50-029-22006-72-00 210-065 T39209 1-13-2011 Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 02/09/2024 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 02/09/2024. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through 02/09/2024. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. 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 have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Supervisor Hilcorp North Slope, LLC Digitally signed by Oliver Sternicki DN: cn=Oliver Sternicki, c=US, o=Hilcorp North Slope LLC, ou=PBU, email=oliver.sternicki@hilcorp.com Date: 2024.02.09 11:15:58 -09'00' Oliver Sternicki Hilcorp North Slope LLC. Surface Casing by Conductor Annulus Cement, Corrosion Inhibitor Top-off Report of Sundry Operations (10-404) 02/09/2024 Well Name PTD # API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date L-293 223020 500292374900 30 8/29/2023 S-09A 214097 500292077101 2 9/19/2023 S-102A 223058 500292297201 2 9/19/2023 S-105A 219032 500292297701 10 9/19/2023 S-109 202245 500292313500 7 9/19/2023 S-110B 213198 500292303002 35 9/19/2023 S-113B 202143 500292309402 10 9/19/2023 S-115 202230 500292313000 4 9/19/2023 S-116A 213139 500292318301 4 9/19/2023 S-117 203012 500292313700 3 9/19/2023 S-118 203200 500292318800 9 9/19/2023 S-122 205081 500292326500 5 9/19/2023 S-125 207083 500292336100 2 9/19/2023 S-126 207097 500292336300 3 9/19/2023 S-134 209083 500292341300 35 9/19/2023 S-200A 217125 500292284601 7 9/19/2023 S-202 219120 500292364700 13 9/19/2023 S-210 219057 500292363000 10 9/19/2023 S-213A 204213 500292299301 4 9/19/2023 S-215 202154 500292310700 3 9/19/2023 S-216 200197 500292298900 4 9/19/2023 S-41A 210101 500292264501 3 9/19/2023 W-16A 203100 500292204501 2 9/23/2023 W-17A 205122 500292185601 3 9/23/2023 Well Name PTD #API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date W-19B 210065 500292200602 8 9/23/2023 W-21A 201111 500292192901 8 9/23/2023 W-32A 202209 500292197001 4 9/23/2023 W-201 201051 500292300700 44 9/23/2023 W-202 210133 500292343400 6 9/23/2023 W-204 206158 500292333300 3 9/23/2023 W-205 203116 500292316500 3 9/23/2023 W-207 203049 500292314500 3 9/23/2023 W-211 202075 500292308000 8 9/23/2023 W-213 207051 500292335400 3 9/23/2023 W-214 207142 500292337300 10 9/23/2023 W-215 203131 500292317200 2 9/23/2023 W-223 211006 500292344000 7 9/23/2023 Z-69 212076 500292347100 2.0 27 1.5 10/24/2023 S-128 210159 500292343600 11 12/27/2023 S-135 213202 500292350800 16 12/27/2023 V-113 202216 500292312500 24 12/31/2023 V-114A 203185 500292317801 5 12/31/2023 V-122 206147 500292332800 5 12/31/2023 V-205 206180 500292333800 2 12/31/2023 V-207 208066 500292339000 8 12/31/2023 V-214 205134 500292327500 5 12/31/2023 V-215 207041 500292335100 2 12/31/2023 V-218 207040 500292335000 5 12/31/2023 V-224 208154 500292340000 16 12/31/2023 V-225 209118 500292341900 6 12/31/2023 V-01 204090 500292321000 3 1/1/2024 V-02 204077 500292320900 5 1/1/2024 V-04 206134 500292332200 5 1/1/2024 V-102 202033 500292307000 8 1/1/2024 V-104 202142 500292310300 5 1/1/2024 V-220 208020 500292338300 4 1/1/2024 W-19B 210065 500292200602 8 9/23/2023 STATE O ALASKA RECEIVED �LASKA OIL AND GAS CONSERVATION COMMI N REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed NOV 0 20 Abandon 0 Plug Perforations QCI Stimulate 0 Pull Tubing Operations shutdown7 {!/ 0 Suspend 0 Perforate 0 Other Stimulate ® Alter Casing 0 Change Awr 7ra�^'❑ Plug for Redrill 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other:A V(3(V'(C.!p 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number 210-065 3. Address: P.O.Box 196612 Anchorage, Development ® Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-22006-02-00 7. Property Designation(Lease Number): ADL 028263&028262 8. Well Name and Number: PBU W-19B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 13720 feet Plugs measured 10620 feet true vertical 9014 feet Junk measured None feet Effective Depth: measured 13630 feet Packer measured 10359 feet true vertical 8985 feet Packer true vertical 8649 feet Casing: Length: Size: MD: ND: Burst: Collapse: Structural Conductor 80 20" 39-119 39-119 Surface 2648 13-3/8" 38-2685 38-2680 5020 2260 Intermediate 10496 9-5/8" 36-10532 36-8785 5750/6870 3090/4160 Production Liner 3337 7-5/8"x 5-1/2"x 4-1/2" 10379-13716 8665-9013 Perforation Depth: Measured depth: 12486-13626 feet True vertical depth: 8954-8984 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 34-10577 34-8820 Packers and SSSV(type,measured and 4-1/2"Baker Premier Packer 10359 8649 true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): 12486'-13626' SCANNED Iii NED DEC 2 8 2 017 Treatment descriptions including volumes used and final pressure: ta,/'�Q1lO�I r►r 18 Bbls 12%HCL Acid. 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 945 1390 1100 1461 255 Subsequent to operation: 114 303 1314 1314 0 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations p Exploratory 0 Development RI Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil ® Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Peru,Cale Contact Name: Peru,Cale Authorized Title: Petroleum Engin er Contact Email: Cale.Perunbp.com Authorized Signature: Date: /0/3 // Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 yII' Z al iE::; ;'37 Submit Original Only • • Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary October 31, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for W-19B PTD #210-065, acid stimulation and plug perforations. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage,AK 99519-6612 • • Daily Report of Well Operations W-19B ACTIVITYDATE SUMMARY CTU-8 1-3/4" Scope: Drift,Acidize 7/12/2013 MIRU. Function Test BOPE. MU 3.5" Drift+ PDS Logging BHA. Stab on. PT PCE. RIH. CTU 8 w/ 1.75"CT Scope:Acid Treatment MIRU. Function Test BOPE. MU 3.5" Drift+ PDS Logging BHA. Stab on. PT PCE. RIH w/ BHA. CTC (2.25"OD x 1.38'), DBPV(2.13"x 1.38'), Sealed Torque-Thru Knuckle (2.13"x 0.83'), Weight Bar(2.13"x 4.84'), Weight Bar(2.13"x 4.66'), Hy-Disco w/5/8" ball seat (2.13"x 1.57'), PDS GR/CCL loggin tool in carrier(2.375"x 9.76'), XO (2.13"x 0.42'), JSN (3.50"x 0.66'). Total Max OD = 3.5", OAL= 25.5'.. wt ck at 10984'. pick up weight was max puII..40k.. Phone APE, decision made to load well with safelube. Tag obstruction at 11662'. cannot jet thru. Start log 40 fpm. flag pipe at 11612. 7/12/2013 **job continued on WSR 07-13-13** Continued from WSR 07-12-13. CTU 8 w/ 1.75"CT. Scope;Acid Treatment Continue log 40 fpm to 10450. pooh. (good data indicating BHA was in mainbore). RIH w/ BHA#2 3.13"ctc,dfcv, 3.16" bidi jars, 3.38"disco, 3.13"dual circ valve, motor, 3.5" para- turbo mill (oal=25.07'). Correct to flag. POP well to ASRC, returns to W-18. Mill from 11676 to 11680, very slow progress, some stalls. POOH. mill shows wear across entire face, (gouges) appears to be other than scale. possibly metal. Phone APE, decision made to set Isolation sleeve. RIH w/ BHA; 2.25" ctc, 2.13"dfcv, disco, 2.73"crossover, 2.88" hipp-tripper, 3.13"crossover, 3.5" GS 3.688"#3 isolation sleeve. (oal= 18.9') 7/13/2013 **job continued on WSR 07-14-13** ASRC Well Test Unit#2, Inlet W-19, Outlet W-18**Cont. from WSR 7/12/13** Mud Acid/FCO w/CTU Cont. CTU RIH to Tag. POP Well, Assist CTU w/ FCO,SI. **Continued 7/13/2013 on WSR 07/14/13** Continued from WSR 07-13-13 CTU 8 w/ 1.75"CT Scope;Acid Treatment Continue RIH w/BHA; 2.25"ctc, 2.13"dfcv, disco, 2.73"crossover, 2.88" hipp-tripper, 3.13" crossover, 3.5" GS 3.688"#3 isolation sleeve. (oal= 30.32')Set sleeve at 10632'.(sleeve= length 18.90', OD 3.688", ID 2.59"). pooh. perform injectivity test with KCL 1.5 bpm at 1520 psi. Good indiction Isolation Sleeve is set. RIH w/2" CTC, 2" DHCV, 2"stingers 2"JSN, (OAL= 8.789') tag obstruction @ 11681', spot 18bbls HCL let soak 30 min, perform injectivity test with kcl 1.5 bpm at 900 psi, attempted to jet thru obstruction @ 11681'and could not pass. pooh. RIH w/2.25"ctc, 2.13"dfcv, bidi jars, disco, circ sub, motor, 2.3" turbo scale mill (oal= 21.11) Tag obstruction at 11672' (swell pkr area) Pop well thru ASRC w/AL gas,allow flow to stabilize. **job continued on WSR 07-15-13** 7/14/2013 . ASRC Well Test Unit#2, Inlet W-19, Outlet W-18**Cont. from WSR 7/13/13** Mud Acid/FCO w/CTU Cont. CTU RIH to Tag. POP Well, Assist CTU w/ FCO,SI. **Continued 7/14/2013 on WSR 07/15/13** Continued from WSR 07-14-13 CTU 8 w/ 1.75"CT.Scope;Acid Treatment Currently in hole wailing for well to stabilize with 2.25"ctc, 2.13"dfcv, bidi jars, disco, circ sub, motor, 2.3"turbo scale mill (oal=21.11)obstruction at 11672' .Allow well to stabilize. Test seperator flow meter plugged with packer rubber..cleaned equipment of rubber and plugged again. Phone APE. Decision made to shut in well and suspend job until other options are discussed. Shut in well and pooh. Freeze protect well with 38 bbls of 50/50 meth. 7/15/2013 **job incomplete** ASRC Well Test Unit#2, Inlet W-19, Outlet W-18**Cont.from WSR 7/14/13** Mud Acid/FCO w/CTU Cont. CTU RIH to Tag. POP Well, Assist CTU w/FCO,SI,.. Recover 7/15/2013 partial packing elements in vessel. CTU RD, Test sep RD **job complete** • • Daily Report of Well Operations W-19B CTU-8 1.75" Scope: Video Log Rig up, function test BOP's, RIH w/CTC 1.75"x .083', DHCV 2"x 1.083' STINGERS 2"x 7.33', JSN 2"x .70', OAL=9.196. Tag obstruction at 11672'. PUH flag pipe at 11622' 7/16/2013 pooh. **job continued on WSR 07-17-13** CTU-8 1.75" Scope: Video Log 7/16/2013 Rig up, Rih with 2"JSN Continued from WSR 07-16-13 CTU 8 w/ 1.75"CT, Scope; Video log liner obstruction RIH w/MU BHA; 2.25", 2.13"dfcv, disco, crossover, 2.4"video camera (oal= 13.63') stop at 11100'. Pump filtered KCL down CT. Tag obstruction at 11672'. Move pipe slowly up/ down above obstruction while pumping for 15 min recording cycle, then without pumping. pooh. Good data, Video shows what appears to be parted/shifted liner at the Swell packer 11673' md, Pulled ISO sleeve from 10625' ctm F/P tubing to 2500'w/50/50, . ( Note: bottom set of packing missing off ISO sleeve) RDMO 7/17/2013 **job complete** ***WELL S/I ON ARRIVAL***(profile-mod) RIG UP SWCP 4519. 8/29/2013 ***CONTINUE WSR TO 8/30/13*** ***CONTINUE WSR FROM 8/29/13 SWCP 4519***(profile mod) SET SLOTTED ISO SLEEVE(24.8'oal)w/2-7/8" PXN-PLUG BODY PRE-SET@ 10,620' SLM (bottom) TAG ISO SLV W/4-1/2"GS @ 10,594' SLM SET PRONG IN 2-7/8" PXN IN ISO SLEEVE @ 10,613' SLM SET 45 KB LTP W/HES DPU, ON TOP OF ISO SLEEVE @ 10,594' SLM 8/30/2013 ***WELL LEFT S/I ON DEPARTURE, PAD OP NOTIFIED ON WELL STATUS*** Fluids Summary Volume Type 1829 Bbls 1% Slick KCL w/Safelube 84 Bbls 50/50 Meth 18 Bbls 12% HCL acid WELLHEAD= 13-5/8"FMC • 1N-1 9B NOTES: WELL ANGLE>70*@ 12921'. ACTUATOR= BAKERC ***ALL CHROME LNRS,JUNCTIONS& .......... OKB.ELEV= 90.5' Ll TUBING** BF.ELEV= 54.15' I KOP= 1510' Max Angle= 98°@ 11729' 20"COIF H ? ' ' L 2209' H4-1/2"t ES X NIP,ID=3.813" Datum MD= 1066T GAS LIFT MANDRELS Datum TVD= 8800'SS ST MD TVD DEV TYPE VLV LATCH PORT DATE 8 2695 2690 0 MMG DMY RK 0 10/12/10 13-3/8"CSG,68#,L-80,D=12.415' H 2698' 7 3520 3496 18 MMG DOME RK 16 03/25/12 6 5424 4980 43 MING MK RK 0 10/12/10 9-5/8"CSG,40#,L-80 HYD 563 XO TO L-Sd BTC --1 8623' 1_,.< X 5 6535 5790 42 WAG DOME RK 16 03/25/12 4 7401 6431 41 MING DMY RK 0 10/12/10 Minimum ID =3.688" @ 10618' 3 8014 6885 41 MIG DMY RIC 0 10/12/10 BKR HOOK ANCHOR w/L1 SEALING LEM 2 9088 7679 43 MMG DOME RK 16 03/25/12 1 1 10200 8524 38 MMG SO RK 22 06/28/15 9-5/8"CSG,401#,L-80 BTC,D=8.835" H 10336' 1—?G 10320' —14-1/2"HES X NP,D=3.813" 9-5/8"X 7-5/8"ZXP LTP w/TEE BK,ID=6.75" — 10379' .. ...\ 10350' —9-5/8"X 4-12"PREM PKR D=3.870" 9-5/8"X 7-5/8"FLEX-LOCK LNR HGR D=6.940" H 10401' 6 ' , 10485' —14-12"HES X NIP,D=3.813" 9-5/8"CSG,47#,L-80 BTC-M,118.681" H I 10530' ! 1110556' —{4-1/Z"H6 X NP,D=3.813" 4-1/2"TBG, 12.6#,13CR 80 VAM TOP, H 10568' ' J 0152 bpf,D=3.958" 10563' - 17-5/8"X 5-1/2"BKR FRD ZXP LTP,D=4.880" 10668' —{4-1/2"Wt_FC,D=3 958" 4-1/2"BKR FKR w/20'X 2-7/8"PERFORATED H 10604' PPE SCREEN(09/08/17) 10583' —15-1/2"X 4-1/2"XO,D=3.958" 000000 BAKER HOOK HANGER — 10618' 000000-- ® ® i i ® ® L1 LEM WINDOW 37' w/L1 SEALING L941 D=3.688" 000000 W-19 B i1 1 ••4 10611'- 10621' OPENING WIDTH=3.33" GS] GM PBTD —I 14599'cm cm /// 4-1/2"LNR 12.6#,13CR-85 VAM TOP, — 14683' 7-5/8"CSG,29.7#,S-95 STL,.0459 bpf,D=6.875" — 10692' 1, .0152 bpf,ID=3.958" 5-1/2"RA TAG,D=4.892" --1 10693' 1—Ii \ 5-1/2"LNR 17#,13CR-80 VAM TOP, — 10741' 10693' --17-5/8"X 5-1/2"XO,D=4.810" .0232 bpf,ID=4.892" 4-12"TBG, 12.6#,13CR-80 VAM TOP, H 10750' ` .0152 bpf,D=3.958" 10760' —15-12"X 4-1/2"XO,ID=3.958" PERFORATION SUMMARY REF LOG:SLB LWD VARIOUS DATES ANGLE AT TOP FERE:N/A ES23 FF."—FISH:LOWER 6.5'OF LEM SCREEN INCLUDING A 2-7/8"X Note:Refer to Production DB for historical perf data NP&A 2-7/8'PX PLUG(PICS N WELLS FOLDER)(9/6/17) - SEE SPF INTERVAL Opn/Sqz DATE SEE PAGE 2 FOR PERFORATION DATAEl 81 [S El NI 4-1/2"LNR,12.6#,13CR-85 VAM TOP, —{ 13716' N" .0152 bpf,ID=3.958" FBTD —1 13630' • DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY MT 1990 J.JONES ORIGINAL COMPLETION 04/30/13 GJF/PJC PULL ISO SLV(04/26/13) WELL: W-19B/L1 12/25/98 SIDETRACK(W-19A) 08/30/13 LEC/PJC KB FKR/ISO SLV ASSR LY PERI 1 T No: 2100650/60 03/08/03 OAC/TLH SIDETRACK(W-19AL1) 07/28/15 RJK/JMD GLV CIO(06/28/15) AR No: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-19131 BL1) 01/04/16 JUJMD CORRECTED 13-3/8"CSG WT SEC 21,T11N,R12F 696'F4_&1181'FR_ 09/06/12 AMJMD RLL ISO SLV(09/02/12) 10/17/17 RB/JMD RESET RFESCREEN(9/8/17) 09/06/12 AMJMD SLO I I EU&P PLUG(9/2/13) BP Exploration(Alaska) W-19B L1 1 11, ----1 x x 1 1 x x .�G 7< r 1 1 I k 1 1 10655' —14-112"BKRSWB..L PKR,D=3.958 I . 10718' H4-112"BKR PAYZONEECP�BU1F,D=3.958 i 10803' H4-1/2"BKR SVVELL FKR,D=3.958 000000 000000\ Oa fia L. 6a MI 182 4 0o000o 000000 W_19BL1 PERFORATION SUMMARY MO CtO » Of COI LV VD LOG:SLB LD VARIOUS DATES ANGLE AT TOP PERF:N/A 4-1/2"BKR SWaL H 12312' Note:Refer to Production DB for historical perf data PKR,D=3.958 SIZE SPF NIhRVAL Opn/Sqz DATE ■ W-198 / 4-112"BKR SWELL -- 12925' 2-7/8" 4 12490-12540 C 08/30/13 PKR,D=3.958 2-718" 4 12560- 12640 C 08/30/13 4-1/2"BKR SWH1_ ---I 12998' 2-7/8" 4 12790- 12920 C 08/30/13 2-7/8" 4 12955-13320 C 08/30/13t --- - PKR,D=3.958 2-7/8" 4 13350- 13510 C 08/30/13 2-7/8" 4 13564-13574 C 08/30/13 2-7/8" 4 13620- 13630 C 08/30/13 z Xi 10812' —14-1/2"BKR SWELL PKR,ID=3.958 W-19BL1 ® ilk .,-, 11192' H4-1/2"BKR 9VVELLPKR,ID=3.958 2-7/8" 4 12450-12870 0 09/26/10 2-7/8" 4 12910-12930 0 09/26/10 2-7/8" 4 13120-13770 0 09/26/10 IS s311673' H4-1/2"BKR SWELL PKR,10=3.958 2-7/8" 4 13820-14290 0 09/26/10 2-7/8" 4 14340-14460 0 09/26/10 El E---^ 12063' H4-1/2"BKR SWELL PKR,ID=3.958 2-7/8" 4 14490-14510 0 09/26/10 , 2-7/8" 4 14550-14570 0 09/26/10 ® Xi 12228' H4-1/2"BKR SWELL PKR,ID=3.958 DATE REV BY CONS/TENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION 04/30/13 GJF/PJC PULL ISO SLV(04/26/13) WELL: W-19B/L1 12/25/98 SIDETRACK(W-19A) 08/30/13 LEC/PJC KB FKR/ISO SLV ASSEMBLY PERMIT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19AL1) 07/28/15 RJK/JM) GLV C/O(06/28/15) AR No: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-19B/BL1) 01/04/16 JUJM3 CORRECTED 13-3/8"CSG WT SEC 21,T11N,R12E,696'FNL&1181'EEL 09/06/12 AMJM7 RJLL ISO SLV(09/02/12) 10/17/17 RB/JMI) RESET RPE SCRt .1(9/8/17) 09/06/12 AMJMJ SLO t I I=U&P PLUG(9/2/13) BP Exploration(Alaska) STATE OF ALASKA RECEIVED �LASKA OIL AND GAS CONSERVATION COMM! REPORT OF SUNDRY WELL OPERATI IIK 1. Operations Performed ��� ��w 017 Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing 0 Ope s t ❑ Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Chan a A.•roved Program 0 Plug for Redrill 0 Perforate New Pool 0 Repair Well ❑ Re-enter Susp Well 0 Oth lt: ,- -d ' e- e EL 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-065 3. Address: P.O.Box 196612 Anchorage, Development H Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-22006-02-00 7. Property Designation(Lease Number): ADL 028263&028262 8. Well Name and Number: PBU W-19B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 13720 feet Plugs measured None feet true vertical 9014 feet Junk measured 10929 feet Effective Depth: measured 10618 feet Packer measured 10359 feet true vertical 8852 feet Packer true vertical 8649 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 39-119 39-119 Surface 2648 13-3/8" 38-2685 38-2680 5020 2260 Intermediate 10496 9-5/8" 36-10532 36-8785 5750/6870 3090/4760 Production Liner 3337 7-5/8"x 5-1/2"x 4-1/2" 10379-13716 8665-9013 8180/7740/8430 5120/6280/7500 Perforation Depth: Measured depth: 12486-13626 feet True vertical depth: 8954-8984 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 34-10577 34-8820 Packers and SSSV(type,measured and 4-1/2"Baker Premier Packer 10359 8649 true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: DEC 2 8 nig, SCANNE 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 653 1543 902 1488 254 Subsequent to operation: 324 1444 1728 1422 260 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations a Exploratory ❑ Development ® Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Il Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data ❑ GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Peru,Cale Contact Name: Peru,Cale Authorized Title: Petrole -• Engl.-er n Contact Email: Cale.Peruabp.com Authorized Signature: // Date:IO ' ///7 Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 V77.--���/ t "r� s^-- 7v.slY7 'Ly Submit Original Only 7 • • Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary October 28, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for W-19B PTD #210-065, Set Ported Sleeve. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage,AK 99519-6612 • • Daily Report of Well Operations W-19B ACTIVITYDATE SUMMARY ***WELL FLOWING ON ARRIVAL***(Profile Mod) ATTEMPT TO PULL PRONG FROM PXN PLUG @ 10610' SLM (see log for details) RAN 3.80"/3.805" BARBELL 3.70" LIB TO 10,586' SLM, MARKS INCONCLUSIVE 9/3/2017 ***CONT. ON 9/4/17 WSR*** ***CONT. FROM 9/3/17 WSR***(Profile Mod) RAN BARBELL 3.50" LIB TO 10,586' SLM, IMPRESSION OF KB PACKER F.N. W/ DEBRIS RAN 4-1/2" DOGLESS GS W/BLB TO 10,586 JARRED ON 45 KB @ 10,586' SLM FOR 3 HOURS USING .125"WIRE JARRED ON 45 KB @ 10,586' SLM FOR 50 MIN USING .160"WIRE 9/4/2017 ***CONTINUE ON 9/5/17 WSR*** ***CONT. FROM 9/4/17 WSR***(Profile Mod) PULLED 45 KB PACKER @ 10,586' MD (missing 2-1/2 elements) RAN BAITED BLB&3.60" 3-PRONG WIRE GRAB TO 10,587' SLM, NO ELEMENTS RECOVERED 9/5/2017 ***JOB IN PROGRESS, CONT. ON 9/6/17 WSR*** T/I/O= 1800/1900/150. Assist Slickline (PROFILE MOD) Pumped 5 bbls of 60/40 Meoh, 40 bbls of crude, 250 bbls of slick 1% KCL, and 40 bbls of crude into the TBG. Standby while they pulled stubborn PXN plug. SlickLine on well upon departure. 9/5/2017 FWHP=450/1822/147 Valves= SlickLine ***CONT. FROM 09/05/17 WSR***(Profile Mod) PULLED UPPER 18'-6" OF SLOTTED ISOLATION SLEEVE @ 10,595' MD ***APPROX. 6'-6" LEFT IN HOLE*** RAN 3.70" BARBELL&3.5" LIB TO 10,587' SLM NO MARKS, POSSIBLE ELEMENT RAN BAITED BRUSH &4-1/2" 3 PRONG WIRE GRAB TO 10,921' SLM RECOVERED 2 METAL BACK UP RINGS FROM PACKING BORE ATTEMPT TO LATCH PRONG W/2"SB, UNABLE TO GET DEEPER THAN 10,929' SLM 9/6/2017 LAY DOWN FOR WEATHER ***CONT FROM 09/06/17 WSR***(Profile Mod) DRIFT TBG. w/DMY 3.66" ER PACKER TO 10,893' SLM RAN HES 40 ARM CALIPER FROM 10,980' SLM TO SURFACE. RAN 20'x 2.70"SUBSIDENCE DRIFT TO 2300'SLM RAN BAKER 45 KB DRIFT&3.70"CENTRALIZER TO BAKER HOOK HANGER @ 10,587' SLM (10,610' MD) SET 29.99' BAKER PERFORATED ISOLATION SLV @ 10,579' SLM (10,604' MD) ***JOB IN PROGRESS, CONT. ON 09/08/17 WSR*** 9/7/2017 ***DRIFTED TO 2,300' SLM W 3.70"x 20' FOR SUBSIDENCE SURVEILLANCE*** ***CONT. FROM 09/08/17 WSR***(Profile Mod) RIG DOWN HES 046 SLICKLINE UNIT 9/8/2017 ***JOB COMPLETE, WELL LEFT S/I*** TREE= 13-5/8" - 8"FMC • 1N�19 B WELLHEAD= 13-55/8"FMC girNOTES: WELL ANGLE>70°@ 12921'. ACTUATOR= BAKER C L CHROME LNRS,JUNCTIONS& OKB.EEV= 90.5 Ll TUBING*** BF.BEV= 54.15 I KOP= 1510' J' Max Angle= 98°@ 11729' 20"COND H ? ' ' 2209' -14-1/2'FES X NP,ID=3.813" Datum ND= 10667' GAS LFT MANDRELS Datum TVD= 8800'SS ST ND TVD DEV TYPE VLV LATCH FORT DATE 8 2695 2690 0 MNG DM' RK 0 10/12/10 13-3/8"CSG,68#,L-80.D=12.415" -I 2698' 7 3520 3496 18 WIG DOME RK 16 03/25/12 6 5424 4980 43 MNG DAN RK 0 10/12/10 s-yrs'CSG,40#,L-80 HYD 563 XO TO L-80 BTC { 8623' >< 5 6535 5790 42 MNG DOME RK 16 03125/12 4 7401 6431 41 MMG DMY RK 0 10/12/10 Minimum ID =3.688" @ 10618' 3 8014 6885 41 MNG DMY RK 0 10/12/10 BKR HOOK ANCHOR w/L1 SEALING LEM 2 9088 7679 43 MNG DONE RK 16 03/25/12 1 10200 8524 38 MNG SO RK 22 06/28/15 9-5/8"CSG,40#,L-80 BTC,D=8.835" - 10336' H 10320'114-1/2"FES X NP,D=3.813" 1117-P- 9-5/8" � 9-518"X 7-5/8"ZXP LTP w/TEBK,ID=6.75" H 10379' 10350' -9-5/8"X 4-1/2"PREM PKR,D=3.870" 9-5/8"X 7-5/8"FLEX-LOCK LNR HGR D=6.940" -1 10401' 10485' H4-1/2"I L X NP,D=3.813" 9-5/8"CSG,47#,L-80 BTC-M lE8.681" -{ 10530' , 10556' -14-1J2"I Na,X NP,D=3.813" 4-1/2"TBG,12.6#,13CR 80 VAM TOP, -{ 10568' 10563' --17-5/8"X 5-1/2"BKR HRD ZXP LTP,ID=4.880" .0152 bpf,D=3.958" 10604' 4-1/2"BKR PKR w/20'X 2-7/8"PERFORATED H 10668' 4-1/7"WI_FG,D=3 958" PPE SCREEN(09/08/17) D' 10583' H5-1/2"X 4-1/2"XO, =3.958" 000000 BAKER HOOK HANGER - 10618' 000000 cm an na » L1 LEM WINDOW 37' w/L1 SEALNVG LEM,D=3.688" 000000 -19 B L i O 10611'- 10621' OPENING WIDTH=3.33" PBTD -1 14599' 4-1/2"LNR 12.6#,13CR-85 VAM TOP, - 14683' 7-5/8"CSG,29.7#,S-95 STL,.0459 bpf,D=6.875" H 10692' k 0152 bpf,D=3.958" 5-1/2"RA TAG.D=4.892" - 10693' 1---11 5-1/2"LNR 17#,13GR-80 VAM TOP, -{ 10741' - 10693' --{7-5/8"X 5-1/2"XO,D=4.810" 0232 bpf,ID=4.892" 4-1/2"TBG, 12.6#, 13CR-80 VAM TOP, - 10750' . tl .0152 bpf,ID=3.958" `; 10760' H 5-1/2"X 4-1/2"XO,ID=3.958" PERFORATION SUMMARY REF LOG:SLB LWD VARIOUS DA I ES ANGLE AT TOP PERE:WA IE37 ?-FISH:LOWER 6.5'OF LEM SCREEN INCLUDING A 2-7/8'X Note: Refer to Production DB for historical perf data u NP&A 2-7/8"PX PLUG(PICS NJ WELLS FOLDER)(9/6/17) - SIZE SPF INTERVAL Opn/Sqz DATE CE 0 SEE PAGE 2 FOR PERFORATION DATA IS E f3 E 4-1/2"LNR 12.6#,13CR-85 VAM TOP, -1 13716' '' .0152 bpf,ID=3.958" -•-•"• F 61D -I 13630' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNT 1990 J.JONES ORIGINAL COMPLETION 04/30/13 GJF/PJC PULL ISO SLV(04/26/13) WELL: W-19B/L1 12/25/98 SIDETRACK(W-19A) 08/30/13 LEC/PJC KB FKR/ISO SLV ASSEMBLY PERMIT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19A L1) 07/28/15 RJK/JND GLV GO(06/28/15) AR No: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-198181.1) 01/04/16 JL/JMD CORRECTED 13-3/8"CSG WT SEC 21,T11N,R12E 696'R L&1181'FE 09/06/12 AMJMD RLL ISO SLV(09/02/12) 10/17/17 RB/JND RESET HPE SCREEN(9/8117) 09/06/12 AMJND SLOTTED&PFLUG(9/2/13) BP Exploration(Alaska) • W-19B • L1 1 11, 1 1 x = 1 1 I 1 1 10655' --14-1/2"BKR SWELL FKR,0=3.958 1 1 10718' H4-1/2"BKR PAYZONE ECP ELHv6sff,D=3.958 10803' H4-1/2"BKR SWELL FKR,D=3.958 000000 I 000000 RI xSa ka MIcia 532 000000 iiil PERFORATION SUMMARY Ling co ® of esi REF LOG:SLB LWD VARIOUS DATES ANGLE AT TOP PERF:WA 4-1/2"BKR SWELL H 12312' I, Note:Refer to FYoduction DB for historical perf data FKR,D=3.958 SIZE SPF INTERVAL Opn/Sqz DATE • W-19B 4-1/2"BKR SWELL H 12925' 2-7/8" 4 12490-12540 C 08/30/13 PKR,D=3.958 2-7/8' 4 12560- 12640 C 08/30/13 4-1/2"BKR SWELL H 12998' 2-7/8" 4 12790- 12920 C 08/30/13 2-7/8" 4 12955- 13320 C 08/30/13t --- - PKR.ID=3.958 2-7/8" 4 13350-13510 C 08/30/13 2-7/8" 4 13564-13574 C 08/30/13 2-7/8" 4 13620- 13630 C 08/30/13 IS X9 10812' H4-1/2"BKR SWELL PKR,ID=3.958 W-19BL1 Eg ifif 231 11192' H4-1/2"BKR SWELL PKR,ID=3.958 2-7/8" 4 12450-12870 0 09/26/10 2-7/8" 4 12910- 12930 0 09/26/10 2-7/8" 4 13120-13770 0 09/26/10 eg 23-1 11673' H4-1/2"BKR SWELL FKR,ID=3.958 2-7/8" 4 13820-14290 0 09/26/10 2-7/8" 4 14340-14460 0 09/26/10 E 2:1-1 12063' –14-1/2"BKR SWELL PKR,ID=3.958 2-7/8" 4 14490- 14510 0 09/26/10 2-7/8" 4 14550- 14570 0 09/26/10 12228' —14-1/2"BKR SWELL PKR,ID=3.958 DATE REV BY CO? U TTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 J.JONBS ORIGINAL COMPLETION 04/30/13 GJF/PJC RLL ISO SLV(04/26/13) WELL: W-19B/L1 12/25/98 SIDETRACK(W-19A) 08/30/13 LEG/RIC KB FKR/ISO SLV ASSEMBLY PERMIT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19AL1) 07/28/15 RJK/JM2I GLV CIO(06/28/15) Apt Na: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-198/BL1) 01/04/16 JUJM) CORRECTED 13-318"CSG WT SEC 21,T11N,R12E,696'FTL&1181'FEL 09/06/12 AMJM) RJLL ISO SLV(09/02112) 10/17/17 RB/JM) RESET RTE SCREEN(9/8/17) 09/06/12 AMJMO SLO t t hD&P RUG(9/2/13) BP Exploration(Alaska) • W-19B , , L1 i . ...._ x `1 x I I X X >< L 01 I I A I I J 10655' -I4-1/2"BKR SWELL FKR,®=3.958 N/ 10718' -I4-1/2"BKR PAYZONE ECP ELEMENT,ID=3.958 000000 10803' H 4-1/7 BKR SWELL PKR,ID=3.958 000000 sa 5331asMI 1R3 4 000000 000000 W-19BL1 PERFORATION SLMvIARY �' _ 13333 13KI 7 REF LOG:SLB LWD VARIOUS DA 11±, ANGLE AT TOP PERF:N/A 4-1/2"BKR SWLL H 12317 j Note:Refer to Roduction DB for historical pert data PKR,ff3=3.958 SIZE SPF INTERVAL Opn/Sgz DATE IL 4-1/2"BKR swat_ H 12925' W-19B 2-7/8" 4 12490-12540 0 08/30/13 FKR,ID=3.958 2-7/8" 4 12560-12640 0 08/30/13 4-1/2"BKR SWELL H 1299$' 2-7/8" 4 12790-12920 0 08/30/13 2-7/8" 4 12955-13320 0 08/30/13R,ND=3.958 2-7/8" 4 13350-13510 0 08/30/13 2-7/8" 4 13564-13574 O 08/30/13 2-7/8" 4 13620-13630 O 08/30/13 E 10812' H4-1/2"BKR SWELL PKR,10=3.958 W-19BL1 CII 111.1 E) 11192' HI4-1/2"BKR SWELL PKR,ID=3.958 2-7/8" 4 12450- 12870 0 09/26/10 2-7/8" 4 12910-12930 0 09/26/1011673' H 4-1/2"BKR SWELL PKR,®=3.958 2-7/8" 4 13120-13770 0 09/26/10 2-7/8" 4 13820-14290 0 09/26/10 m12063' - I4-1/2"BKR SWELL PKR,ID=3.958 2-7/8" 4 14340-14460 0 09/26/10 2-7/8" 4 14490-14510 0 09/26/10 193 2-7/8" 4 14550-14570 0 09/26/10 �- 12228 H4-1/2"BKR SWELL FKR,0=3.958 DATE REV BY CMTS DATE REV BY C OPivENTS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION 04/30/13 GJF/PJC FULL ISO SLV(04/26/13) NUELL: W-19B/L1 12/25/98 SIDETRACK(W-19A) 08/30/13 LR IPJC KB PKR/ISO SLV ASSBVULY FERMIT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19AL1) 07/28/15 RJK/JMD GLV C/O(06/28/15) AR Nb: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-19B/BLL) 01/04/16 JUJMD CORRECTED 13-3/8"CSG WT SEC21,T11N,R12E,696'FNL&1181'FH_ 09/06/12 AM/JMD PULL ISO SLV(09/02/12) 10/17/17 RB/JMO RESET PPE SCREEN(9/8/17) 09/06/12 AM/JIVE) SLOI IED&P RUG(9/2/13) BP Exploration(Alaska) • STATE OF ALASKA • ALASKA OIL AND GAS CONSERVATION COMMI N REPORT OF SUNDRY WELL OPERAT• 1. Operations Performed Abandon 0 Plug Perforations 0 Fracture Stimulate ❑ Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate ❑ Alter Casing 0 Change Approved Program 0 Plug for Redrill ❑ Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other:Open Lateral Leg I3 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-065 3. Address: P.O.Box 196612 Anchorage, Development M Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-22006-02-00 7. Property Designation(Lease Number): ADL 0028263 8. Well Name and Number: PBU W-19B 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: Total Depth: measured 13720 feet Plugs measured feet RECEIVED true vertical 9014 feet Junk measured feet Effective Depth: measured 10618 feet Packer measured 10359 feet MAY 3 0 2017 true vertical 8852 feet Packer true vertical 8648.58 feet AOGCC Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"Conductor 39-119 39-119 Surface 2648 13-3/8"68#L-80 38-2685 38-2680 5020 2260 Intermediate See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Production Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation Depth: Measured depth: 12486-12536 feet 12556-12636 feet 12786-12916 feet 12951-13316 feet 13346-13506 feet 13560-13570 feet 13616-13626 feet True vertical depth: 8954-8951 feet feet 8949-8943 feet 8934-8923 feet 8920-8929 feet 8932-8954 feet 8966-8968 feet 8981-8984 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 34-10577 34-8820 Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): SCANNED J U N 0 12017, Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Md Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 1289 786 592 1365 303 Subsequent to operation: 38 70 76 1311 274 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations ® Exploratory ❑ Development ® Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil I3 Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG 0 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Peru,Cale Contact Name: Peru,Cale Authorized Title: Petroleum qineer Contact Email: Cale.Peru@bp.com �f''' Authorized Signature: �. Date: 5/30/17 Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 1/77- ,/36 1 i 7- Submit Original Only A y f/wif(7 RBDMS k\-/ MAY 3 1 2017 • • Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, AK 99501-3572 RECEIVED RE: BP Exploration (Alaska), Inc. MAY 3 0 2017 Report of Sundry Well Operations Summary AOGCC May 26, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for the setting of a Slotted Isolation Sleeve that opens both legs to production of the Multi-Lateral Well W-19B, PTD # 210-065. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 • • a Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue RECEIVED Anchorage, AK 99501-3572 MAY 302017 AOGCC RE: BP Exploration (Alaska), Inc. Report of Sundry Well Operations Summary May 26, 2017 To Whom it May Concern: Attached please find the Report of Sundry Well Operations for the setting of a Slotted Isolation Sleeve that opens both legs to production of the Multi-Lateral Well W-19B, PTD # 210-065. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachment: Form 10-404 BP Exploration (Alaska) , Inc. P.O. Box 196612 Anchorage, AK 99519-6612 • • CI) , 00000000 c CO O CO N O 00 d O N N N C d' LO r` CO CO ti U N 0 0 0 0 0 0 0 0 1. NCO r` 00 M N M O h- 00 A- 'Cr C` O d' CO to In CO CO 00 f� O) 00 O N LO N LC) M O CO CO 00 A- CO A- N CO (O h- CA O O O co N 00 CO 00 CO CO O) CO CI I II I H N COONA- O) CO CO M CO A- A- CO M co M CO O 00 CA O co co 00 00 00 CO 4-0 Lo CO N N N 00 N- O CO M (A LO CO c- N- CO M lO CO t� I� r` O000O O M O N A- A- A r A A A- c.)V I I I V3 co Q 0) co - LC) V N CO CO CO CD CO Cr) COCO CO CO LI, CO N M M M O O O O M C co WO LU O I— a. O OOi, cc ) 000 OI 0 00 CO 0 U J J V) Cf) O CO CO M •-• r r d co 0 % • CO CO CO N f/) O CO N �� N N CU U -0\00000 - �- U coLc).- O(NI ch tC� t OO Mr-- 00 dco CA 00 co 0 M O N J � W W Q Q Cr) W o 0 U U a LLE rt ctc rXa Z Z W W W W W W ODHI- ZZZZD U ( ZZJJJJ • • Packers and SSV's Attachment PBU W-19B SW Name Type MD TVD Depscription W-19B TBG PACKER 10358.89 8648.58 4-1/2" Baker Premier Packer W-19B PACKER 10390.72 8673.78 7-5/8" Baker ZXP Top Packer W-19B PACKER 10576.03 8819.1 5-1/2" BAKER ZXP PACKER W-19B PACKER 10813.76 8995.01 4-1/2" HT K2 Swell Packer W-19B PACKER 11193.79 9076.04 4-1/2" HT K2 Swell Packer W-19B PACKER 11675.4 9038.6 4-1/2" HT K2 Swell Packer W-19B PACKER 12064.7 8997.92 4-1/2" HT K2.Swell Packer W-19B PACKER 12230.2 8981.24 4-1/2" HT K2 Swell Packer • • l w 13 ai > 73 -0 = � pQLQ U u� c o J m1-- a -c0 a a) N .- J a) CT a E v) Oa ,4- E "Ic � w 2n_O . Q> 0 iWM (a 0 0E oC � Uc a) a) I- Oa 5 2 , o U E W O 0 NO cr- cQ a) — a) O - O O 0 L m Q W Q * a) O O H -0 c a_ 0 cL0 .• w c _1 In 5 ° U HQN 00. " :65730- CI) a" � 73O_ I- o_ o II �= a) -0 -0 o - - o O co g _1 * Qo E en> cn c- a) o) -� aE2 aa) a LO ) W 3 a) a) - c6 rn rn rn �° C-3 fa H = O c - 0- U m O __lc 0 c a) O p O H rn w c 03 > C c U c t V O Q H .- N O Q O L S 0- W a _ ffi c N - � 0 °� o Q flt 0 > xa0a- >O - .o caEi L c a) U) N > H /�� (/) �, a O H Q Z " . ow › , L L ? = L a l"J .....LL 5 to a) L , c) H va = , _ Q O 47. ct ° w > w H O - 2 >...- W ami o _coo m 0 -0 ° o co) m m O Q ----I Z � 0 �� cn � � 0 o � Q.. rn > I� co -Ip � � I�i 5 -1 [7j91.'(n �; � r- w c oo rn � ai co m o Q. D °o - J W D , H io F c o (,, > Fav- O c N U -E uoi Q m c/) `n > a00 L °OQ > Q- o n m a) 3 3 O U) O "O �o a. o a- a) OT- 000 F_� Lo O d o a :''.> o in s c O c a o cf0i o w 3 � -0 a a. Lww < La � � � .: (7) - 0� Q � O c ° 0 tM cnwp -21-LIN QpZa o � owCO � o Qc N � .o a � Z 00- a) J_ H i ° > 7 : 0 -1u)- (75m * 0 � cnooi.- cll � a) L_ E .0 Q Q. o-Qu) aa ►1Jd * QOII m � a o U) v - om o- w m a) 0 O *mH * (> u- n - * ctHw a - cv 7 = IQOr- Lop Oo_J � N as o. m ce J (� 2 > > - j °�s H ct EC ap N V N U cin O N - II 3 W -O Uj 0 >+ QNw (nCw0Z > NLLOQH -oo , '- o pHN �- c0 nag * c c O . -o N * . >OS � H � � � J c a) c o 0 0 � F- � NQ � C\ Cn � ' '&7 °)� � W0 -00 1 04- 0 c}o N c (nN , 0 0 a) N- W � X 00 w K ° 7- 2 .-' O O O v U -O = W 0 E O o gi c � H N O H W N U c O -p = a O c L a) 6 _10_w O ZJ �g2DI- JLggZZLLn o o25 ) L90 oaQ -10th - > o w OJ a aw OW a Oa0 a OwXOWoU L vo LQO a) -. (n X -o II a � U -1pumw -1W0W - N9- o � � ° o0 o 1 CO 0 � � E a) p0J a 0 O (n J � 2HHO HH °ti' � J °° O ? U -0OoM � a m rnii - -cw ov � 4- H0 � IjMwOO -) mwZZZ 00 `� Nw a - * WW II -Q m o3 II l- c`nu cn = C1 - 0, COV) ZODUJF- OUVZH � oO C ° E Qli -0 „ U o f a� a) O rn Q _, 2 * QQ * * DWQO * * QW * - o O * z cn - Q c > - nor E a3 cLnZ * Q * W2 : * a. (n20 * * a' (n * HNA * a. QH 00 � m (nHa. LH ca tnLLt. : W H N N Q N N N N N N O O O N N N N N N N N 5 M - N %n (0 o \ N H a05 ai O O O 60 0 Q • • (r 0_ 0) C 0 J Cl) Q. N 0 • a o 0 • I- U a m O coQ Co a cu :ra cc E a� wi- c o u_ c 0. � ZvOw � ~ m (-5 Li z Q — � �00cn � 0 bo • CO J • m > a a 0 O a0• Q � �z O J > - ▪ z0f- 0 • O COO 0 LLI D O J W W • zUaw0 C� ZcC Z w • 0M rOomw n- i Z W a N > J J =F— Q) • a. a I- N .13 N m � Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWellIntegrityCoordinator@bp.com> Sent: Sunday,July 03, 2016 7:10 AM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M IL;AK, OPS GC2 Wellpad Lead;AK, OPS Prod Controllers;Cismoski, Doug A; Daniel, Ryan;AK, GWO SUPT Slickline;AK, GWO SUPT Special Projects;AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr;AK, OPS PCC Ops Lead; Peru, Cale;AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, GWO DHD Well Integrity;AK, GWO Projects Well Integrity;AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; jim.regg@alaska.gov'; Pettus,Whitney; Sayers,Jessica; Dickerman, Eric;AK, GWO SUPT Well Integrity Subject: OPERABLE: Producer W-19B (PTD#2100650)TIFL Passed All, Producer W-19B(PTD#2100650) passed a TIFL indicating two competent well barrier envelopes.The well is now reclassified as Operable. Please call with any questions or concerns. Ryan Holt (Alternate:Lee Grey) BP Alaska-Well Integrity GVoiGa!Weis 0,01,rdt+nn • ED DEC 0 92016 WIC Office: 907.659.5102 WIC Email: AKDCWeIlIntegrityCoordinator@BP.com rom: AK, GWO SUPT Well Integrity Se : Monday, June 27, 2016 7:02 AM To: A , •PS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; D. •'el, Ryan; AK, GWO SUPT Slickline; AK, GWO SUPT Special Projects; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Is Opt Engr; AK, OPS PCC Ops Lead; Peru, Cale; AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, GWO DHD -II Integrity; AK, GWO Projects Well Integrity; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; 'jim.regg@alaska.gov'; •=(us, Whitney; Sayers,Jessica; Dickerman, Eric; AK, GWO SUPT Well Integrity Subject: UNDER EVALUA • • Producer W-19B (PTD #2100650) Sustained Casing Pressure Inner Annulus Over MOASP All, Producer W-19B(PTD#2100650)was reported to h. high inner annulus pressure over MOASP on June 25th 2016. TBG/IA/OA were confirmed 2010/2065/135 psi and subsea _ ,nt TIFL failed on June 27th 2016.The well is now reclassified as Under Evaluation and on a 28 day clock to be rep. ed or secured. Plan Forward: 1. Downhole Diagnostics:Warm TIFL 2. Well Integrity: Further well work as needed ! • Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWellIntegrityCoordinator@bp.com> Sent: Monday, June 27, 2016 7:02 AM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, GWO SUPT Slickline; AK, GWO SUPT Special Projects; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS PCC Ops Lead; Peru, Cale;AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity;AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; 'jim.regg@alaska.gov'; Pettus, Whitney; Sayers, Jessica; Dickerman, Eric;AK, GWO SUPT Well Integrity Subject: UNDER EVALUATION: Producer W-19B (PTD #2100650) Sustained Casing Pressure Inner Annulus Over MOASP All, Producer W-19B (PTD#2100650) was reported to have high inner annulus pressure over MOASP on June 25th 2016. TBG/IA/OA were confirmed 2010/2065/135 psi and subsequent TIFL failed on June 27th 2016.The well is now reclassified as Under Evaluation and on a 28 day clock to be repaired or secured. Plan Forward: 1. Downhole Diagnostics: Warm TIFL 2. Well Integrity: Further well work as needed Please call with any questions or concerns. Ryan Holt (Alternate:Lee Grey) BP Alaska-Well Integrity G � SCANNED JUN 2 8 2016 WIC Office: 907.659.5102 WIC Email: AKDCWeIlIntegrityCoordinator@BP.com From: AK, D&C-Well Integrity Coordinator Sent: Saturday, October,10, 2015 7:49 AM To: AK, OPS GC2 OSM; AI OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES- B East Wells Opt Engr; AK, OPS PCC Ops Lead; Burton, Kaity; AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD l Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; 'jim.regg@dfeska.gov'; Pettus, Whitney; Sayers, Jessica; Dickerman, Eric Subject: OPERABLE: Producer W-19B (PTD #2100650)TIFL Passed All, 1 • • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Saturday, October 10, 2015 7:49 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL;AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS PCC Ops Lead; Burton, Kaity; AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator;AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; 'jim.regg@alaska.gov'; Pettus, Whitney; Sayers,Jessica; Dickerman, Eric Subject: OPERABLE: Producer W-19B (PTD #2100650) TIFL Passed All, Producer W-19B (PTD#2100650) passed a warm TIFL on October 10, 2015 confirming two competent barriers in the wellbore. The well is reclassified as Operable. Please call with any questions or concerns. Thank you, Whitney Pettus (Alternate:Kevin Parks) BPAlaska-Well Integrity Coordinator GW,M J!ga+latz oo; WIC Office: 907.659.5102 SCANNED AUG 0 4 2,016 WIC Email: AKDCWeIlIntegrityCoordinator@BP.com From: AK, D&C Well Integrity Coordinator Sent: Wednesday, October 07, 2015 9:02 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M ..; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations—Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells` Engr; Burton, Kaity; AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Morrison, Spencer; 'jim.regg@alaska.gov'; Pettus, Whitney; Sayers, Jessica; Dickerman, Eric Subject: UNDER EVALUATION: Producer W-19B (PTD #2100650) Ready to Place on Production All, Producer W-19B (PTD#2100650) is now available for diagnostic work. At this time, the well has been reclassified as Under Evaluation so that the high inner annulus pressure reported during proration can be assessed. Plan Forward: i • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Wednesday, October 07, 2015 9:02 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Burton, Kaity; AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer;AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Morrison, Spencer; 'jim.regg@alaska.gov'; Pettus, Whitney; Sayers, Jessica; Dickerman, Eric Subject: UNDER EVALUATION: Producer W-19B (PTD #2100650) Ready to Place on Production All, Producer W-19B (PTD#2100650) is now available for diagnostic work. At this time,the well has been reclassified as Under Evaluation so that the high inner annulus pressure reported during proration can be assessed. Plan Forward: 1. Operations: Place well on production 2. Downhole Diagnostics: Perform TIFL 3. Well Integrity Engineer: Additional diagnostics as needed Please call with any questions or concerns. Thank you, Whitney Pettus (Alternate: Kevin Parks) BP Alaska-Well Integrity Coordinator a WIC Office: 907.659.5102 WIC Email: AKDCWellIntegrityCoordinator@BP.com From: AK, D&C Well Integrity Coordinator Sent: Friday, Jane-1 , 5 10:02 AM To: AK, OPS GC2 OSM; AK, OP O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operatiens`Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr Burton, Kaity; AK, OPS WELL PAD W; 'chris.wallace@alaska.gov' Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; AK, D&C Well Integrity Coordinator; Sternicki, Oliver R; Pettus, Whitney; 'jim. g@alaska.gov'; Weiss, Troy D Subject: NOT OPERABLE: Producer W-19B (PTD #2100650) IA exceeded MOAS d.Lring Proration All, i Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Friday, June 12, 2015 10:02 AM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Burton, Kaity; AK, OPS WELL PAD W; Wallace, Chris D (DOA) Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; AK, D&C Well Integrity Coordinator; Sternicki, Oliver R; Pettus, Whitney; Regg, James B (DOA); Weiss, Troy D Subject: NOT OPERABLE: Producer W-19B (PTD #2100650) IA exceeded MOASP during Proration Attachments: image001.png; Producer W-19B (PTD #2100650) Wellbore Schematic.pdf; Producer W-19B (PTD #2100650) TIO Plot.docx All, Producer W-19B (PTD#2100650) inner annulus pressure exceeded MOASP on June 09, 2015 with TBG/IA/OA= 200/2200/240 psi. A subsequent TIFL failed on June 11, 2015. At this time, the well has been reclassified as Not Operable until the well can be accessed for additional diagnostics post proration. Plan Forward: 1. Downhole Diagnostics: Warm TIFL—FAILED 2. Slickline: Change out orifice gas lift valve 3. Downhole Diagnostics: Re-TIFL 4. Well Integrity Engineer: Additional diagnostics as needed A copy of the TIO plot and wellbore schematic have been included for reference. Please call with any questions or concerns. Thank you, Whitney Pettus SCOW) JUN 3 4 2015 (Alternate:Kevin Parks) BP Alaska-Well Integrity Coordinator G\A WIC Office: 907.659.5102 WIC Email: AKDCWellIntegrityCoordinator(a)BP.com 1 Producer W-19B(PTD#2100650) TIO Plot June 12, 2015 TM V - -o- Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. al 0 - ©6sWell History File Identifier Organizing(done) ❑ Two-sided III IIIIIIIIII IIIII ❑ Rescan Needed I I MIII R CAN DIGITAL DATA OVERSIZED (Scannable) Color Items: ❑ Diskettes, No. ❑ Maps: Greyscale Items: ❑ Other, No/Type: ❑ Other Items Scannable by a Large Scanner ❑ Poor Quality Originals: OVERSIZED (Non-Scannable) ❑ Other: ❑ Logs of various kinds: NOTES: ❑ Other:: BY: deM Date: ` d / /s/ P Project Proofing 13111111 11111 BY: Date: I a T /iL1i /s/ rY/f) Scanning Preparation 5- x 30 = /3-0 + a. I = TOTAL PAGES_ (Count does not include cover she t) BY: Maria Date: /at./ /L L /sl VI Production Scanning 131111111111 Stage 1 Page Count from Scanned File: i 7 ca, (Count does include cover sheet) Page Count Matches Number in Scanning Preparation: V YES NO BY: Maria Date: //D.,(111/ 1.1. /s/ 04 r Stage 1 If NO in stage 1, page(s)discrepancies were found: YES NO BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. 11111111111111111 ReScanned ll I BY: Maria Date: /s/ Comments about this file: Quality Checked III 111111 III 1111 III 12/22/2011 Well History File Cover Page.doc o p U) 0 o 2 J cc > J a CO CO 0 J > W �: 0 m p� N Z ° w c7 ° a N 0 U C o °H N t LL N U I' > C J L 0 a d U a0 U '3 P. 9 0! m (-9 °Z a Z c00 w e C i O J U D Z 2 w U U En °0 El CO m a F. cn o co Li 2< 1-Q aw aw w.5 o -o 0 > 0 0 0 a 0 o 0 0 0 0 0 0 J N U) V N N N N N N N 0 (7? 2 0 re N N M CO M M CO E C C C C C E • m 1 c 00 m m a a a a a Cl)I— co Y OU U U O 0 0 0 0 V _ < c w CO a o CO 0 v (0 i ` oz m 0 0 0 o i0 o d d Z Z CL O 0 in - � — CO a y a W g C t' LO N N N Z 1/iy� d -.1 0 _ (0 N N N N o �' W w J N O U m o d CD co Z C d Y Z Z H �p co O r' 7 N O J O. m co i I 2 .� O o 0) 0 0 0 0 C ?, E CL p li ZI J i 0 U U U U N p li 11 cn O E o. O to,1 �� N N N N Ii V N v a -I CI) co O J 0° < Q a 1- o w z N Cu co g D � CO a of ° c W m M o ° o p j a co m vi Q a c o CL a) o QC a ZI C C w w Q Z o C7 0 0 .> .> .> .> ;> d 0 ° I6 IC N N N N U1 E -J ? 7 7 co Z 7 >2 1 W III a' �' CL C C C C C y 1 0 C C O O O O .0 1 c7 � j Cu E E 7 7 7 7 7 C (j rn Z N N c c c c c * yr U U Co z rn - E O 0 > z0 J w y a N ,o H ~ O O « W Z N N O� } Q C to a+ 0 Z v LL E 0 E 0 N j Z r '� C7 LL J r..� z Q N 2 w O v p 0 ` O o w- C cc E a W J _ I� �U U 0 U a o E H d ° W Q a y o' `'� a 0 ° 0 0 0 0 o 00 0 L c 2 o a Q. 0 1_ 3 JcFT J W J J J J W 3 Q > U QQ' U i C C (.1` N O C O ) N N Z N fA c) _0 9 1 a In 0 Z Q r1 C) 0 rkI Z ci • o R I— J co 0 rg Q N O z CL o I 0 J a W w J U m 0 Z Q Y L N a ro CL 0 u) N o • r _ N N a • f E 0 (0 U I J m Q o r_ ~ E C N Tr • O CO li ^Ml 0 a> V/ 0 N 0 Q re F" a a) Q z° E I o p E " 041 Iii tu Z Itu • M O O I 10 1 m CD o -a 0 3 N d d _ O cc N O 10 Ea m o o a 2 ! U !'�L z LU-- t 1g P 2-6 z(c)orc,sr,- Regg, James B (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator @bp.com] '%j�az�l3 Sent: Tuesday, May 21, 2013 8:26 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity; AK, OPS Well Pad SW; Regg, James B (DOA); Schwartz, Guy L (DOA); Weiss, Troy D Cc: AK, D&C DHD Well Integrity Engineer; Climer, Laurie A; Clingingsmith, Mike J; Walker, Greg (D&C); Grey, Leighton (CH2M Hill) Subject: OPERABLE: W-19B (PTD#2100650) Passing TIFL All, Producer W-19B (PTD#2100650) passed a TIFL after being brought back online.At this time, the well has been reclassified as Operable and may remain online. Regards, Laurie Climer (Alternate-lack Disl,r, w) BP Alaska - Well Integrity Coordinator notAl C"Qdfl!73'sn WIC Office: 907.659.5102 WIC Email: AKDCWelllntegritvCoordinator @BP.com From: AK, D&C Well Integrity Coordinator Sent: Monday, May 20, 2013 1:28 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; - , OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C We ervices Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Ka', ; AK, OPS Well Pad SW; 'jim.regg @alaska.gov'; 'Schwartz, Guy L(DOA)'; Weiss, Troy D Cc: AK, D&C DHD Well Integrity Engineer; Climer, Laurie A; Clingin. ith, Mike 3; Walker, Greg (D&C); Grey, Leighton (CH2M Hill) Subject: UNDER EVAL: W-19B (PTD#2100650) IA above MOA-• All, Producer W-19B (PTD#2100650) IA pressure broke M'ASP on 05/16/13. At that time, the well was unable to be put online for further diagnostics due to field optimizat'•n. Currently,the well can be put online and further evaluated. The well status has been changed to Under Evaluatio•. Plan forward: 1. Well to be placed online 2. DHD to perform a TIFL Wellsketch and current TIO hav- seen attached for reference. 21-00(0 Regg, James B (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWeIIlntegrityCoordinator @bp.com] � 5�/7/i3 Sent: Monday, May 20, 2013 1:28 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity; AK, OPS Well Pad SW; Regg, James B (DOA); Schwartz, Guy L (DOA); Weiss, Troy D Cc: AK, D&C DHD Well Integrity Engineer; Climer, Laurie A; Clingingsmith, Mike J; Walker, Greg (D&C); Grey, Leighton (CH2M Hill) Subject: UNDER EVAL: W-19B (PTD#2100650) IA above MOASP Attachments: W-19B wellsketch.pdf; W-19B TIO Plot 5-20-13.docx All, ,/' Producer W-19B (PTD#2100650) IA pressure broke MOASP on 05/16/13.At that time, the well was unable to be put online for further diagnostics due to field optimization. Currently,the well can be put online and further evaluated. The well status has been changed to Under Evaluation. Plan forward: 1. Well to be placed online 2. DHD to perform a TIFL Wellsketch and current TIO have been attached for reference. Regards, Laurie Climer (4/tet•r/ate:Jack Disbrmc) /B'PPAlaska - Well Integrity Coordinator VI Got ml Weis Organimmsn WIC Office: 907.659.5102 WIC Email: AKDCWeIIlntegrityCoordinator @BP.com From: AK, D&C Well Integrity Coordinator Sent: Saturday, May 18, 2013 2:31 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D&C Wireline Operations Team Lead; AK, D&C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Longden, Kaity; AK, OPS Well Pad SW; 'jim.regg @alaska.gov'; 'Schwartz, Guy L (DOA)'; Weiss, Troy D Cc: AK, D&C DHD Well Integrity Engineer; Climer, Laurie A; Clingingsmith, Mike J; Walker, Greg (D&C); Grey, Leighton (CH2M Hill) Subject: NOT OPERABLE: W-19B (PTD#2100650) IA above MOASP All, 1 Producer W-19B (PTD#2100650) was found to have inner annulus pressure above MOASP on 05/16/2013 with TBG/IA/OA= 360/2080/300 psi. The well had been shut in for field optimization. At this time the well is reclassified as Not Operable and has been freeze protected. Plan forward: 1. Ops: Put well back on production 2. DHD: Perform a TIFL 3. WIE: Further diagnostics as needed A copy of the TIO plot and wellsketch have been included for reference. Please call with any questions. Regards, Laurie Climer (1IIer•rrale lack Disbr og) BP Alaska - Well Integrity Coordinator C: i Wells Organiz t on WIC Office: 907.659.5102 WIC Email: AKDCWelllntegrityCoordinator @BP.com 2 ff1 H E I $ F. c0 z co Q co N Q i Q O a co H NI 0. I) 0 $� a a Aoo< o` g M O t M ' M_ t 4 M I I 3 `7 M F I ' O M_ p� - a cn co (r) cr) oM y U N V c+l [V CV O a o m O CL o I- k TREE= • 4-1/16"FMC _ WELLFEAD= 13-5/8"FMC W-19B SArc l'Y NOTES: WELL ANGLE>7 0°@ 12921'. ACTUATOR= BAKER C "'ALL CHROME LNRS,JUNCTIONS& KB.ELEV= 80.25 Ll TUBING"' BF.ELEV= 54.15' I KOP= 1510' Max Angle= 98°©11729' 20'ODND — ? 1) 1 I I 2209' —14-1/2"HES X NIP,Er=3,813" I Datum ND= 1066T GAS UFT MANCRaS Datum ND= 8800 ss I ST AA) ND DEV TYPE VLV LATCH FORT DATE 8 2695 2690 0 W RK AG DMY 0 10/12/10 8" 13-3/ CSG,72#,L-80,ID=12.34r H 2698' / 7 3520 3496 18 WAG DONE RK 16 03/25/12 0 10/12/10 9-5/8"CSG,40#,L-80 HY D 563 XO TO L-80 BTC — 8523' —>< I 6 5424 4980 43 WIG DMY R . FE>< 5 6535 5790 42 WAG DOW FE 16 03/25/12 4 7401 6431 41 WAG DMY FE 0 10/12/10 Minimum ID = 2.59" ( 10586' SLMD 3 8014 6885 41 WAG DMY RK 0 10/12/10 BKR SLOTTED ISOLATION SLEEVE 2 9088 7679 43 lutVG DONE RK 16 03/25/12 I 1 10200 8524 38 WAG SO FE 2 03/25/12 9-5/8"CSG,40#,L-80 BTC,L8.835' — 10336' 1--->< 10320' --14-1/2-HES X NIP,ID=3.813" '>< 9-5/8"X 7-5/8"ZXP LTP WI TEBK,ID=6.75" — 10379' — • "j 10350' —9-5/8"X4-1/2'FREM FKR,ID=3.870" I 9-5/8"X 7-5/8"FLEX-LOCK LINIR FIGR,ID=6.940" —1 10401' 1---- U • I 10485' —14-1/2"RES X NIP,ID=3.813' 9-5/8'CSG,47#,L-80 BTC-M,D=8.681" — 10530' F--4 16 • II 10556' —4-1/2"FES X MP,ID=3,813" I 4-1/2"113G,12.6#,13CR-80 VAM TOP, —1 10568' 1Ni r... 1 10563' .H7-518'X 5-1/2"BKR 1-18)ZXP LTP,ID=4.880" 1 .0152 bpf,ID=1958' \ 10568' J 4-1/2"WLEG,I)"3.958" 10583' —5-1/2"X4-112'XO,ID=3,958" BAKER HOOK HANGER — 10618' 1-T .. .... ISM OM CZ rsa 181 CM L1 LEM WINDOW 37° ... W-19BL1 .. ' ' w/L1 SEALING LEM ID=3.688' *44 10611 - 10621 ,• — & -4 OPENING WIDTH=3,33" CI C6I In LEO 1251 - PBTD H 14599' 4-1/2"LM, 12.6#,13CR-85 VAM TOP, — 14.683' 7-5/8"CSG,29.7#,S-95 STL,.0459 bpf,ID=6.875" —I 10692' 1.-.., .0152 bpf,ID=3,958" 5-1/7'RA TAG,ID=4.892" —1 10693' 1-- ..........,..................„ 10693' —7-5/8"X 5-1/2"XO,ID=4,810" 5-1/2"LM, 17#,13CR-80 VAM TOP, —1 10741' .0232 bpf,ID=4.892" 4-1/2"TBG, 12.6#, 13CR-80 VAM TOP, — 10750' 1 t .0152 bpf,IX=3.958" 10760' —5-1/2"X 4-1/T XO,ID=3.9513' FERFORATION SUWAARY E 21 REF LOG:SLB UM VARIOUS DA I LS ANGLE AT TOP FERE:N'A E SI Note:Refer to R-oduction DB for historical perf data SIZE I SPF 1 NTERVAL I Opn/Sqz I DATE E 21 SEE PAGE 2 FOR FORATION DATA 1 I E EC E3 El 4-1/2"LM,12.6#,13CR-85 VAM TOP, H 13716' WigB .0152 bpf,ID=3.958' war*-4■ —I ••• I PBTD 13630' 1 •• • ■*,•.et$ DATE REV BY CONVENTS DATE REV BY COWENTS FRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION 04/3W13 GJF/PJC FULL ISO SLV(04/26/13) VVELL W-1913/L1 12/25/98 SIDETRACK(W-19A) FERMI No: 2100650/60 03/08/03 DAC/TLI4 SIDETRACK(W-19AL1) API No: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-19B/BL1) SEC 21,T11N,R12E,696 FNL&1181'FEL 09/06/12 AM/JA4D FULL ISO SLV(09/02/12) 09/06/12 AM/JMD SLOT I LD&P PLUG(9/2/13) , BP Exploration(Alaska) r W-19B L1 i . L >< L x I I >< X x x I I A I I 10655' H4-1/7'BKR SWELL PKR,D=3.958 PERFORATION SUMARY =� , 10718' H4-112.BKR PAY ZONE ECP ELEMENT,D=3.958 REF LOG:SLB LWD VARIOUS DA I ES ■ i ANGLE AT TOP Pf32F:WA 10803' H4-1/2"BKR SWELL PKR,D=3.958 Note:Refer to Roduction DB for historical parr data 4' ' ba sa __ _ SIZE SFF INTERVAL Opn/Sqz DATE W-19 B L 1 ;*;� w-1sB '�• 2-7/8" 4 12490-12540 0 09/01/10 \ 2-7l8" 4 12560-12640 O 09/01/10 4-1/7 BKR SWELL 12312' 2-7/8" 4 12790-12920 O 09/01/10 ---- 2-7/8- 4 12955-13320 0 09/01/10 PKR.D=3.958 2-7/8" 4 13350-13510 0 09/01/10 lc .. - 1 4-1/2'BKR SWELL 12925' 2-7/8" 4 13564- 13574 0 09/01/10 2-7/8" 4 13620-13630 0 09/01/10R,D=3.958 4-1/2"BKR SWELL H 12998' W-19BL1 t -,. PKR,D=3.958 2-7/8' 4 12450-12870 0 09/26/10 2-7/8" 4 12910-12930 O 09/26/10 7' 2-718' 4 13120-13770 0 09/26/10 E 10812' I4-1/2"BKR SWELL PKR,ID=3.958 2-7/8" 4 13820-14290 0 09/26/10 2-7/8" 4 14340-14460 0 09/26/10 2-7/8" 4 14490-14510 0 09/26/10 18 5-AI 11192' 1"4-112'BKR SWELL PKR,ID=3.958 2-7/8" 4 14550- 14570 O 09/26/10 ® g)--- I 11673' H 4-117 BKR SWELL PKR,ID=3.958 1 CE 23—I 12063' H4-1/-2"BKR SWELL FKR,ID=3.958 I 198 srI 12228' I-14-1/2"BKR SWELL FKR,ID=3.958 cg• DATE REV BY CO f 'fTS DATE REV BY COMMENTS PRUDHOE BAY MT 1990 J.JONES ORIGINAL COMPLETION 04/30/13 GJF/PJC FULL ISO SLV(04/26/13) WELL W-19B/L1 12/25/98 SIDETRACK(W-19A) FERMI-No: 2100650/60 03/08/03 DACfTL I SIDETRACK(W-19AL1) -- AR No: 50-029-22006-02(61) - 10/14/10 D-14 SIDETRACK(W-1981 BL1) SEC 21,T11N R12E,696'FNL&1181'FEL 09/06/12 AM/JMD PILL ISO SLV(09/02/12) 09/06/12 AM'JMD SLOT III&P FLUG(9/2/13) BP Exploration(Alaska) RECEIVED 7 • STATE OF ALASKA , SKA OIL AND GAS CONSERVATION COM ION AUG 2 8 2012 REPORT OF SUNDRY WELL OPERATIONS AOGCC 1.Operations Abandon U Repair Well U Plug Perforations U Perforate U OtherU Set Isolation Sleeve Performed: Alter Casing ❑ Pull Tubing❑ Stimulate-Frac ❑ Waiver ❑ Time Extension❑ Change Approved Program ❑ Operat.Shutdown❑ Stimulate-Other ❑ Re-enter Suspended Well❑ 2.Operator 4.Well Class Before Work: 5.Permit to Drill Number: Name: BP Exploration(Alaska),Inc Development 0 Exploratory ❑ i 210-065-0 3.Address: P.O.Box 196612 Stratigraphic❑ Service ❑ 6.API Number: Anchorage,AK 99519-6612 50-029-22006-02-00 7.Property Designation(Lease Number): \ 8.Well Name and Number: ADL0028263 l9 aid • PBU W-19B 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 13720.42 feet Plugs measured None feet true vertical 9013.26 feet Junk measured None feet Effective Depth measured 10618 feet Packer measured See Attachment feet true vertical 8851.99 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 36-116 36-116 1490 470 Surface 2657 13-3/8"72#L-80 35-2692 35-2686.8 4930 2670 Intermediate None None None None None None Production 10496 9-5/8"47#L-80 34-10530 34-8782.82 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment See Attachment Perforation depth Measured depth 12486-12536 feet 12556-12636 feet __12786-12916 feet 12951-13316 feet 13346-13506 feet 13560-13570 feet 13616-13626 feet True Vertical depth 8953.57-8949.81 feet 8948.4-8942.51 feet 8932.74-8922.24 feet 8919.42-8928.66 feet 8931-8953.02 feet 8965.1-8967.51 feet 8980.1-8983.24 feet Tubing(size,grade,measured and true vertical depth) 4-1/2"12.6#13Cr80 25-10568 25-8812.4 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: 1289 786 592 1365 303 Subsequent to operation: 38 70 76 1311 274 14.Attachments: 15.Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development El • Service❑ Stratigraphic ❑ Daily Report of Well Operations X 16.Well Status after work: Oil , ei Gas ❑ WDSPIU GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUC❑ 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 Garry Catron Prepared by Garry Catron 564-4424 Printed Name Garry Catron Title PDC PE Signature ida,ti, C�� Phone 564-4424 Date 8/28/2012 VI_ it ,,1`7G(17/ ReOMS AUG 212012o / 3) / I7- Form 10-404 Revised 10/2010 Submit Original Only t Packers and SSV's Attachment ADL0028263 SW Name Type MD TVD Depscription W-19B PACKER 10350 8554.67 4-1/2" Baker Premier Packer W-19B PACKER 10379 8577.63 7-5/8" Baker ZXP Top Packer W-19B PACKER 10574 8730.24 5-1/2" HRD ZXP LT Packer W-19B PACKER 10812 8906.67 4-1/2" HT K2 Swell Packer W-19B PACKER 11192 8988.9 4-1/2" HT K2 Swell Packer W-19B "PACKER 11673 8951.61 4-1/2" HT K2 Swell Packer W-19B PACKER 12063 8910.4 4-1/2" HT K2 Swell Packer W-19B PACKER 12228 8893.8 4-1/2" HT K2 Swell Packer a 0 0 0 0 0 0 0 0 0 (a � � °nN (°n °n `ti° CD ° 3 4 u � CONI� � N � V C- C)) 000 M or CC M N- COQ) M m co co CO CO CO mt CO N N CO r- III Cr) N CD U) CA O OO e- CO o 1- O O N N A- N N o N Nr a- CO CO 00 O co 0) 0 0 CO 00 co 00 co co O co o N 00 CO NA- N CO 4 CO 4 00 en coCO000NCOCC) CCON 0 0 000 CO 0 CO CO CO 0000 00 — N N O Cn CO Cr) O N CO CO O O 1.0 C7 A- CO Cr) CO e- CO CO I� N- r- CO 0 O C[) 43) .- 0000C) NrONO sa v CU M 0) co el N U) Q N O O O O O O M M CO N 0 o Y o !o C+) U V) Cr) ' J C+) Ca N N s IV N N - N O - - CO r V O c N N N N N m O S- 00 d' 4 4 4 U N- d 0 CO Cr) co O N 0 W Z_ =p JO .y am e- OCCCLCCCLWOIai_ Z Z W W W W W Q Z Z Z Z Z ~ � j j UJJJJJ � dfnH co 1: 11 O II U ((0 U p o -a v o O � to 2 73 -0 CV a) N - 0 0 o V) � (o In 0 a) a) ,- c `� _a W 2 0 D QN- O Q d E c° to O �� d0 Q 73 Cn /�� (n �\ J g O V OC W' U W O- V CO J (O -J * U) o E O1 W a) z o a - rr 4- O � o2J () o _ O o O D O U7 0 J Lo J cO a) W LLI E W � • .- ZZ a) � (> > z ° 0 o 0 Z O w i I- w O C Q J U) (n * * N � zm W O2 (nw co c � U o O � * ao o� O � Q � Jcn = a) •- CU a) oz O F- Q a) o 00 • mWH ! u) °O. O m Y a� � � H - 0 z -Q (DQO > � w a > LOwz cn o _,(/)) O O� N � o EU_ U ^IWd J EW am — N CD °) H O - H U) C a) co cu j < � Ju) U) O E o To U) o (9 Q a _ HJ (AH 2z0 a NI U � OZ = UJ a) * oUCnUZoZ ZaQQa N .- * oo a OW O a) C wow a) DW -6 E- OF,W Quj c�i o p QN } � � Q 3 o � 2 � ° gZ0 * � WQD * cv a) > ._ ~ WQ 2 � * 2 o Wa) * * U)CL *�. �m * OI L * � (n i i N 0 * N_ W' H > Q Q• � �' WUr 0 > (A ce CD QE- YWO . ON CLa) ,, 00 r 2D � i* f� w CV oo *kQ0Ypa > � .c o A 2! CL cn � 1_ I a Db (nW � co � War00 � a ccci cn M .m' Q ti N- N } Z O C 0 ZO (n0 (2 N � Z op Iii ~ aNO (j ct ° XdwLu0u) Z p0dUO ca`) Q 5. 0 � 0 O o m E .i o � WIZ O J < 0U) E o � ODJm -) 0 Em (.1 t- � N o m xN EoQ � � � m mQUZ � � � in LL WOE _ W - u) ) C tom * -Oo3> .: mmQo ) Omctoc W o co J O H CV (n (V O I- 3 0 N * F-- N 0 1 5 0 0 v- I- H N < W J 6 M E J H d 0 r W_ r N O Q) r Q d J U -a W � 2 W 't 0 OQ `il 0 N j O W I- �Y N � � O 0 - J W c m ,, W � --I C 0O ii), C) U � u 2 � z . 2U UF- za � ° E `) * 0Qdri � * Fis * H o * a_ 0v) 5�CC -¢-) U) * * (f) CC * * 0_ vim) * N N N N N N �- O O O O O CD N N N N N N ti O r r ti WELL LOG TRANSMITTAL To: State of Alaska January 12,2011 Alaska Oil and Gas Conservation Commission Attn.: Christine Shartzer 333 West 7th Avenue,Suite 100 Anchorage,Alaska 99501-3539 RE: LWD Formation Evaluation Logs: W-19B+PB1 AK-MW-0007409877 W-19B 50-029-22006-02 2"x 5" MD Triple Combo Logs: 1 Color Log 2"x 5"TVD Triple Combo Logs: 1 Color Log W-19BPB1 50-029-22006-72 2"x 5" MD Triple Combo Logs: 1 Color Log 2"x 5"TVD Triple Combo Logs: 1 Color Log Digital Log Images&LWDG-formatted LIS Data w/verification listing; 1 CD Rom PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Attn: Bryan Burinda 6900 Arctic Blvd. `U_D6 Anchorage,Alaska 99518 cam` Office: 907-273-3536 cg.064-j Fax: 907-273-3535 Bry`" � .�n.com Date: 20i, Signed: Alaska Oil Gas Cons. ;.742.nmiasi01 Anchorage STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG la. Well Status: ®Oil ❑Gas ❑SPLUG ❑Other ❑Abandoned ❑Suspended lb. Well Class: 20AAC 25.105 20AAC 25.110 ® Development ❑Exploratory ❑GINJ ❑WINJ ❑WAG ❑WDSPL ❑Other No.of Completions One ❑ Service ❑Stratigraphic 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 10/14/2010 210-065 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 7/31/2010 50-029-22006-02-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 8/30/2010 PBU W-19B 696'FNL, 1181'FEL, SEC.21,T11 N, R12E, UM 8. KB(ft above MSL): 86.87' 15.Field/Pool(s): Top of Productive Horizon: 3670'FSL,3143'FEL, SEC. 16,T11 N, R12E, UM GL(ft above MSL): 52.9' Prudhoe Bay Field/Prudhoe Bay Total Depth: 9.Plug Back Depth(MD+TVD): Oil Pool 5245'FSL, 156'FEL, SEC. 17,T11 N, R12E, UM 13672' 8998' 4b. Location of Well(State Base Plane Coordinates,NAD 27): 10.Total Depth(MD+TVD): 16. Property Designation: Surface: x- 612049 y- 5959561 Zone- ASP4 13720' 9013' ADL 028263&028262 TPI: x- 610013 y- 5963897 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 607693 y- 5965439 Zone- ASP4 N/A 18.Directional Survey: ®Yes ❑No 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1900'(Approx.) 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re-Drill/Lateral Top Window MD/TVD.: MWD,GR, RES, PWD, USIT,SCMT, MAD Pass 2692' 2687' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE TOP I BOTTOM To BOTTOM SIZE CEMENTING RECORD PULLED 20" Conductor Surface 110' Surface 110' 13-3/8" 68# L-80 Surface 2692' Surface 2687' 17-1/2" 3723 cu ft Coldset II 9-5/8" 40#/47# L-80 Surface 10530' Surface 8783' 12-1/4" 2491 cu ft LiteCrete.450 cu ft Clash'G' 7-5/8'.5.1/'=+-1/2' 2970117#/12.8# L-80/13Cr80/85 10379', 13716' 8665' 9012' 8-1/2"x6-1/8" 525 cu ft Class'G' i/ 24. Open to production or injection? ® Yes ❑No 25. TUBING RECORD If Yes,list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/TVD) (MD+TVD of Top&Bottom;Perforation Size and Number): .. 2-7/8"Gun Diameter,4 SPF 4-1/2", 12.6#, 13Cr80 10568' 10350'/8642' MD TVD MD TVD 12490'-12540' 8953'-8950' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 12560'-12640' 8949'-8942' 12790'-12920' 8932'-8922' -'-,a,''"l'.' . DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 12955'-13320' 8919'-8929' i 13350'-13510' 8931'-8954' ` /J .� 0 Freeze Protected with 160 Bbls of Diesel _ 13564'-13574' 8966'-8969' , • __1 13620'-13630' 8981'-8950' ., 27. __ PRODUCTION TEST Date First Production: Method of Operation(Flowing,Gas Lift,etc.): October 28,2010 Gas Lift Date of Test: Hours Tested: Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: 10/30/2010 8 Test Period ♦ 803 508 105 176 633 Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORK): Press. 260 1140 24-Hour Rate ♦ 2408 1524 314 28. CORE DATA Conventional Core(s)Acquired? ❑ Yes El No Sidewall Core(s)Acquired? ❑Yes ®No If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil •as or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory To •; -1111k • rT•Ey 250.071. None DEC 2 it 2010 RBDMS DEC 2 2 201 Alaska Oil &Gas Co•C9l fission Ancttdr$ s Form 10-407 Revised 12/2009 CONTINUED ON REVERSE ubmit Original Only Ml( 7,y / 29. GEOLOGIC MARKERS(List all formations and m. ,s encountered): 30. JRMATION TESTS NAME MD TVD Well Tested? ❑Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 MC 25.071. Ugnu 3438' 3417' Ugnu M 4790' 4524' None Schrader Bluff N 5099' 4746' Schrader Bluff 0 5314' 4901' Base Schrader Bluff/ Top Colville Mudstone 5761' 5228' Top HRZ 7616' 6591' Top KLB 7928' 6821' Top Kuparuk A 7932' 6824' Top Miluveach 7946' 6834' Top Kingak 8878' 7524' Top Sag River 10487' 8750' Top Shublik 10533' 8785' Top Eileeen 10654' 8881' Ivishak Zone 4 10671' 8894' Ivishak Zone 3 11003' 9081' Ivishak Zone 3 11312' 9065' Ivishak Zone 4 13720' 9013' Formation at Total Depth(Name): Ivishak Zone 4(Base) 11312' 9065' 31.List of Attachments: Summary of Daily Drilling Reports,Well Work Summary,Well Schematic Diagram,Surveys and a Leak Off Test Summary 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. ll Signed: Sondra ewman t / 'loopy. Title: Drilling Technologist Date: I A- / 7-/ iJ PBU W-19B 210-065 Prepared By Name/Number. Sondra Stewman, 564-4750 Well Number Permit No./Approval No. Drilling Engineer: Garret Staudinger, 564-4242 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item la: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump,Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 MC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 MC 25.071. Form 10-407 Revised 12/2009 Submit Original Only TREE= VV-19B WELLHEAD= SAFE. RTES: ALL CHROME LINER's, ACTUATOR= JUNCTION,&COMPLETION KB ELEV= 80 25' DRLG DRAFT B L 1 BF.ELEV= 5415' KOP= 2800' J 1, . Max Angle= 101 deg Datum MD Datum TV D- 8800'5S 2209' 1-14-1/2"HES X NIP,ID=3.813" I 13-3/8"CSG,72#,L-80,ID=12.415" H 2698' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 8 2695 2690 0 MMG DMY RK 0 10/12/10 9-5/8"CSG,40#,L-80,HYD 563,ID=8.835" --1 8523' 7 3520 3496 18 MMG DOME RKP 16 10/20/10 4-1/2"HES X NIP, ID=3.813" 1— 10320' 6 5424 4980 43 MMG DMY RK 0 10/12/10 5 6535 5790 42 MMG SO RK 20 10/20/10 14 1/2"x 9-5/8"BKR PREMIER PKR H 10,350' '' 4 7401 6431 41 MMG DMY RK 0 10/12/10 4-1/2"HES X NIP, ID=3.813" H 10485' 1 I A. 3 8014 6885 41 MMG DMY RK 0 10/12/10 Mill 2 9088 7679 43 MMG DMY RK 0 10/12/10 I4-1/2"HES X NIP,ID=3.813" I— 10556' I 1 10200 8524 38 MMG DMY RK 0 10/12/10 9-5/8"CSG,40#,L-80,BTC,ID=8.835" -1 10336' l 10,563' 1__17 5/8"X 5-1/2"BKR ZXP LTP,ID=3.875" 9-5/8"X 7-5/8"Baker ZXP Liner Top Packer H 10,378.72' '®• 10,610.53'1 Top L1 LEM Window (10'long,3.25"ID) 1 9-5/8"x7-5/8"FLEX LOCK LH 1-1 10401' 1 1 10611' 1_13.675'ISOLATION SLEEVE(12/03/10) I 9-5/8"CSG,47#,L-80,BTC-M,ID=8.681" H 10530' Minimum ID = 3.688" @ 10618' m MILLOUTWINDOW 10619-10637 BKR HOOK w/SEALING LEM :v ''0 14,683'_14-1/2"LNR, 12.6#,13CR,VT,ID 3.958" I 4 7-5/8"LNR,29.7#.L-80,STL,ID=6.876' —1 10692' �r w ,i RA Tag H10,693.06'—' 4'i,ii` :i 5-1/2"13CR 17ppf,VT,ID=4.767"Lift ---110,693.06 I Al. L�'0. 5-1/2"X 4-1/2"SBR, ID=4.767"Drift--1 10740.7' , ,' 5 • -112"X 4-112"XO,ID= 3.958'—110,759.61' 'No\ _I 4.5"Swell Pkr 13CR VT,ID=3.958" 10812' f 14,599' PBTD L-1 I 10,655' —I L-1 4.5"Sw ell Pkr 13CR,ID=3,958" 4.5"Sw ell Pkr 13CR VT,ID=3.958" —I 11192' 10,718' _14.5"ECP Pkr 13CR VT,ID=3.958" PERFORATION SUMMARY 10,803' _I L-1 4.5"Sw ell Pkr 13CR,ID=3.958" I N 12,312' ,J L-1 4.5"Sw ell Pkr 13CR,ID=3.958" REF LOG: TCP PERF ANGLEAT TOP PERF: ig N/A 12,925' _1L-1 4.5"Sw ell Pkr 13CR,ID=3.958" Note Refer to Production DB for historical pert data 21 12,998' 1_l L-1 4.5"Sw el!Fkr 13CR,ID=3.958" SIZE SPF INTERVAL OpnfSgz DATE 2.88" 4 B-13620-13630 0 09/01/10 11673.31' _14.5"Sw ell Pkr 13CR VT,ID=3.958" I 2.88" 4 B-13564-13574 0 09/01/10 0 ii 12062.61' 4.5"Swell Pkr 13CR VT,ID=3.958" 2.88" 4 B-13350-13510 0 09/01/10 2.88" 4 B-12955-13320 0 09/01/10 ii 2.88" 4 B-12790-12920 0 09/01/10 41; 2.88" 4 B-12560-12640 0 09/01/10 i® At.. 2.88" 4 B-12490-12540 0 09/01/10 'r ` 2.88" 4 L1-14550-14570 0 09/26/10 ` ,. 2.88" 4 L1-14490-14510 0 09/26/10 ` 2.88" 4 L1-14340-14640 0 09/26/10 n 2.88" 4 L1-13820-14290 0 09/26/10 /Y�j 2.88" 4 L1-13120-13770 0 09/26/10 12228.11' _14.5"Sw ell Pkr 13CR VT,ID=3.958" I 2.88" 4 L1-12910-12930 0 09/26/10 2.88" 4 L1-12450-12870 0 09/26/10 4-1/2"LNR,12.6#, 13CR,VAM TOP,.0152 bpf, ID=3.958" H 13716' I DATE REV BY COMMENTS DATE REV BY COtENTS PRUDHOE BAY UNIT i 03/08/10 GJS Proposed Completion WELL: W-19B/BL1 10/14/10 D14 SIDETRACK(W-19B ML) PERMIT No: 210065,210066 10/17/10 PJC DRLG HO CORRECTIONS API No: 50-029-22006-02,61 12/08/10 GJF/PJC SET ISOLATION SLV(12/03/10) 12/13/10 CD/PJC MIN ID CORRECTION BP Exploration(Alaska) North America -ALASKA- BP Page 1 of 2 Operation Summary Report Common Well Name:W-19 AFE No Event Type:MOBILIZATION(MOB) Start Date: 7/20/2010 End Date: 7/23/2010 X3-00V1Z-C(1,322,247.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ft 7/20/2010 00:00 - 00:00 24.00 MOB P ._ PRE MOVE RIG FRO H-PAD HEADED TO W-PAD 7/21/2010 00:00 - 09:30 9.50 MOB P ._ PRE MOVING RIG FROM GC-2 TO MOBILE PAD ACCESS ROAD 09:30 - 16:30 7.00 MOB N WAIT PRE WAIT ON RIG MATS TO BE LAID DOWN 16:30 - 17:00 0.50 MOB P -_ PRE MOVE RIG MOBILE PAD ACCESS ROAD TO W-PAD ACCESS ROAD 17:00 - 00:00 7.00 MOB P PRE MOVE RIG DOWN W-PAD ACCESS ROAD -ROAD GAVE AWAY JACK UP RIG AND LAY DOWN TIMBERS AND PLYWOOD BELOW 7/22/2010 00:00 - 01:00 1.00 MOB P . PRE MOVE RIG ON W-PAD ACCESS ROAD TO S-CURVE 01:00 - 02:00 1.00 MOB N WAIT PRE WAIT FOR CREWS TO DOUBLE STACK MATS BEHIND RIG 02:00 - 03:00 1.00 MOB P PRE BACK RIG OVER DOUBLE STACKED MATS 03:00 - 04:00 1.00 MOB N WAIT '; PRE WAIT FOR CREWS TO STACK MATS IN FRONT OF RIG 04:00 - 05:00 1.00 MOB P PRE MOVE RIG TO TURN OUT 05:00 - 12:00 7.00 MOB N WAIT PRE WAIT ON MATTING FOR THE W-PAD ACCES ROAD CHANGE OUT FRONT MOUNTS ON SHAKER #1 CHANGE OUT MUD BUCKET DOOR SEALS AND RUBBERS TO 5" 12:00 - 12:30 0.50 MOB P PRE BACK OUT OF TURN OUT 12:30 - 13:30 1.00 MOB N WAIT PRE WAIT ON MATS TO BE MOVED FROM TURN OUT TO W-PAD ACCESS ROAD TO W-PAD ENTRANCE 13:30 - 14:30 1.00 MOB P ®_ PRE MOVE RIG FROM TURN OUT TO W-PAD ENTRANCE 14:30 - 16:30 2.00 MOB P PRE MOVE MATS TO W-PAD ENTRANCE 16:30 - 17:00 0.50 MOB P -_ PRE MOVE RIG TO BACK SIDE OF W-PAD SPOT ON RIG MATS 17:00 - 18:00 1.00 MOB P PRE POSITION MATS TO MOVE TOWARDS WELLHEAD 18:00 - 18:30 0.50 MOB P PRE MOVE RIG TO BEHING WELLHEAD 18:30 - 22:30 4.00 MOB P PRE REMOVE REAR BOOSTERS REMOVE FRONT BOOSTERS,FRONT BOOSTER BRACKET HANG CELLAR DOORS INSTALL CELLAR HEATERS 22:30 - 00:00 1.50 MOB P PRE SPOT RIG OVER WELL 7/23/2010 00:00 - 01:30 1.50 MOB P ._ PRE SPOT RIG OVER WELL. SHIM IN PLACE. 01:30 - 02:30 1.00 MOB P -_ PRE PRE-JOB SAFETY MEETING SKID FLOOR TO DRLG POSITION. 02:30 - 04:00 1.50 MOB P PRE R/U LINES UNDER FLOOR. EXTEND CONVEYOR#2.LAY HERCULITE, SPOT&BERM ROCK WASHER. SPOT ULSD FUEL TANK. HANG FRONT STAIRS. Printed 12/17/2010 2:19:11 PM North America -ALASKA- BP Page 2 of 2 Operation Summary Report Common Well Name:W-19 AFE No Event Type: MOBILIZATION(MOB) Start Date:7/20/2010 End Date: 7/23/2010 X3-00V1Z-C(1,322,247.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 08:00 4.00 RIGU P PRE CHANGE OUT BLANK FLANGES ON TREE TO 1502 FLANGES. INSTALL DOUBLE ANNULUS VALVES ON IA& OA. TAKE ON 9.0 PPG BRINE IN PITS. SPOT TIGER TANK,MWD,GEO,&MUD SHACKS ACCEPT RIG @ 0400 HRS ON 07/23/2010 08:00 - 12:00 4.00 RIGU N WAIT PRE WAIT ON 500 BLL TANK ARRIVAL -TRANSPORT TRUCK FOR TANK BROKE DOWN WHILE IN ROUTE CALIBRATE&TEST GAS ALARMS RECORD RKB R/U ON IA&OA TO TEST AND PUMP SPOT VIRO-VAC WORK ON 5"DRILL PIPE IN PIPE SHED 12:00 - 13:00 1.00 RIGU P PRE PU LUBRICATOR TO RIG FLOOR RIG UP HARD LINE&CHOKE FOR OPEN TOP TANK 13:00 - 13:30 0.50 RIGU P PRE TEST HARD LINE TO 1,000 PSI 13:30 - 14:30 1.00 RIGU P PRE REPLUMB LINES TO BLEED INTO SLOP TANK 14:30 - 15:00 0.50 RIGU P PRE TEST OA TO 250 PSI FOR 5 MIN j ATTEMPT HIGH PRESSURE TEST -PUMP RATE TO 4BPM,1,050PSI -TEST FAILED ONLY INJECTING AS SUSPECTED TEST IA 250PS1 LOW FOR 5 MIN,2,500PSI HIGH FOR 10 MIN Printed 12/17/2010 2:19:11 PM North America -ALASKA- BP Page 1 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 7/23/2010 15:00 - 15:30 0.50 WHSUR P DECOMP PU DSM LUBRICATOR TEST TO 500 PSI FOR 5 MIN -NO LEAKS 15:30 - 16:00 0.50 WHSUR P DECOMP PULL BPV 16:00 - 16:30 0.50 WHSUR P DECOMP HOLD PRE-JOB SAFETY MEETING ON DISPLACING FREEZE PROTECT 16:30 - 18:00 1.50 WHSUR P DECOMP DISPLACE OUT FREEZE PROTECT -STAGE PUMPS UP TO 3 BPM,150 PSI CIRCULATE 30 BBL SAFE SURF SOAP PILL, THEN 170 BBLS 9.0 BRINE -CALCULATED 170 BBLS DIESEL BACK TO SURFACE 18:00 - 22:00 4.00 WHSUR P DECOMP RD CIRCULATING LINES RU TO TEST TWC FROM BELOW AND ABOVE TEST TWC FROM BELOW TO 250 PSI LOW FOR 5 MIN,1,000 PSI HIGH FOR 10 MIN -TEST LOST 0 PSI IN 10 MINUTES TEST TWC FROM ABOVE 250 PSI LOW FOR 5MIN -UNABLE TO ACHIEVE FLATLINE ON HIGH TEST -MADE SEVERAL UNSUCCESSFUL ATTEMPTS CALL DSM FOR LUBRICATOR TO PULL AND INSPECT TWC 22:00 - 23:00 1.00 WHSUR P DECOMP FUNCTION VALVES ON TREE WHILE WAITING ON LUBRICATOR -STILL BLEEDING OFF 23:00 - 00:00 1.00 WHSUR P DECOMP PU LUBRICATOR PRESSURE TEST TO 500 PSI -NO LEAKS PULL TWC -SEALS ON TWC IN GOOD SHAPE, POPPET VALVE JAMMED WITH PIECE OF WOOD INSTALL NEW TWC 7/24/2010 00:00 - 02:00 2.00 WHSUR P DECOMP TEST TWC;FROM BELOW TO 250 PSI LOW FOR 5 MIN,1,000 PSI HIGH FOR 10 MIN -TEST LOST 0 PSI IN 10 MINUTES TEST TWC FROM ABOVE 250 PSI LOW FOR 5MIN,3,500 PSI HIGH FOR 10 MIN -TEST LOST 0 PSI IN 10 MINUTES 02:00 - 03:00 1.00 WHSUR P DECOMP PRE-JOB SAFETY MEETING ND TREE BACK OUT BROKEN LOCK-DOWN SCREW AND REPLACE MAKE DUMMY RUN WITH TUBING HANGER CROSS OVER -TOOK 9-1/2 TURNS TO TORQUE UP 03:00 - 08:30 5.50 BOPSUR P DECOMP INSTALL 18"SPACER SPOOL NU BOPE MU EXTENSION ON CHOKE LINE INSTALL HOLE COVERS 08:30 - 10:00 1.50 BOPSUR P DECOMP MU 5"TEST JOINT WITH 4-1/2"TDS X-OVER PURGE CHOKE MANIFOLD MU TIW VALVE&DART VALVE Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 2 of 37 Operation Summary Report Common Well Name:W-19 1 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 15:00 5.00 BOPSUR P DECOMP TEST BOPE -3,500 PSI HIGH,250 PSI LOW,5 MIN EACH -UPPER RAMS(3-1/2"X 6")W/4-1/2"&5" TEST JOINT -LOWER RAMS(2-7/8"X 5")W/4-1/2"&5" TEST JOINT -CHOKE&KILL LINE,BLIND SHEARS,KILL -.LINE VALVE, -ANNULAR PREVENTOR TO 2,500 PSI HIGH, 250 PSI LOW WITH 4-1/2"TEST JOINT -VALVES 1,2,4,5,6,7,8,9,10,11,12,13,14 -UPPER IBOP ON TOP DRIVE VALVE 3 -TIW DART VALVE -ACCUMULATOR TEST. TEST WITNESSED BY BP WSL BLAIR NEUFELD,DOYON TP NICK MARMON AOGCC WITNESS WAIVED BY JOHN CRISP 15:00 - 15:30 0.50 BOPSUR P DECOMP RD TEST EQUIP BLOW DOWN CHOKE&KILL LINES AND CHOKE MANIFOLD RE-ALIGN CHOKE MANIFOLD 15:30 - 16:30 1.00 BOPSUR P DECOMP PU DUTCH RISER&SET IN STACK RILDS PU LUBRICATOR&EXTENSIONS TEST LUBRICATOR TO 3,500PSI 16:30 - 17:00 0.50 BOPSUR P DECOMP PULL TWC 17:00 - 17:30 0.50 BOPSUR P DECOMP LD LUBRICATOR&DUTCH RISER 17:30 - 18:00 0.50 PULL P DECOMP MU JOINT OF 5"DP TO 4-1/2"TDS X-OVER ® SCREW INTO HANGER BACK OUT LOCK DOWN SCREWS 18:00 - 18:30 0.50 PULL P DECOMP PULL HANGER FREE FROM WELLHEAD HANGER BROKE FREE @ 95K -STRING WT OF 88K PULL HANGER ABOVE ROTARY TABLE FLOW CHECK -WELL STATIC 18:30 - 19:00 0.50 PULL P -_ DECOMP CIRCULATE BOTTUMS UP 3X -8 BPM,140 PSI 19:00 - 19:30 0.50 PULL P -_ DECOMP RU CASING TOOLS,ELEVATORS,POWER TONGS,AIRSLIPS 19:30 - 19:45 0.25 PULL P -_ DECOMP PRE-JOB SAFETY MEETING ON LAYING DOWN TUBING 19:45 - 23:30 3.75 PULL P DECOMP PULL W/4. " 6#L-80 IBT FFROM 3 024'TO SURFACE -TOTAL 72&1 CUT OFF JOINT(4.92') WELL TAKING CALCULATED FILL 23:30 - 00:00 0.50 PULL P DECOMP RD CASING EQUIPMENT 7/25/2010 00:00 - 01:00 1.00 PULL P -_ DECOMP CLEAR RIG FLOOR OF CASING TOOLS INSTALL WEAR BUSHING 01:00 - 01:30 0.50 PULL P ■- DECOMP PU BAKER TOOLS M MU 8-1/2"BIT,BOOT BASKET,CASING SCRAPER,FLOAT 01:30 - 03:00 1.50 PULL P DECOMP RIH PICKING UP 5"DP SINGLES TO 1,431'MD 03:00 - 04:30 1.50 PULL P - DECOMP CUT AND SLIP DRILLING LINE SERVICE TOP DRIVE BLOCK AND CROWN Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 3 of 37 Operation Summary Report Common Well Name:W-19 'AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 06:30 2.00 PULL P ■- DECOMP RIH PICKING UP 5"DP SINGLES FROM 1,431' N TO 3,036'MD -TAGGED TUBING STUMP AT 3,036' 06:30 - 07:30 1.00 PULL P DECOMP CIRCULATE 32 BBL HIGH VISC SWEEP FOLLOWED BY 9.0 PPG BRINE -CIRCULATE SURFACE TO SURFACE -686 GPM,810 PSI ROTATE AND RECIPRICATE 30 RPM,OK TQ -PUW-'110K;SOW-100K;RTW-106K 07:30 - 08:30 1.00 PULL P DECOMP FLOW CHECK -STATIC BLOW DOWN TOP DRIVE POOH FROM 3,032'TO 11' 08:30 - 09:00 0.50 PULL P DECOMP BREAK DOWN CLEAN OUT BHA -BIT,SCRAPER,BOOT BASKET,FLOAT CLEAR RIG FLOOR OF BAKER TOOLS 09:00 - 10:00 1.00 PULL P DECOMP LOAD PIPE SHED WITH 99 JOINTS OF 5"DP 10:00 - 11:00 1.00 PULL P ® DECOMP RIH WITH DP SINGLES FROM PIPE SHED TO 1,400' 11:00 - 12:00 1.00 PULL N WAIT DECOMP WAIT ON SLB USIT SIMOPS: POOH FROM 1,400'RACKING BACK 5"DP 12:00 - 13:30 1.50 PULL P DECOMP PJSM SPOT TRUCK RU SHIEVES,PU TOOLS, MU SLB USIT LOGGING TOOL -W/6.50 TRANSDUCER TO 36.1' PERFORM SURFACE FUNCTION TEST 13:30 - 17:00 3.50 PULL P -_ DECOMP RIH TO 2,975' LOG USIT TO SURFACE 17:00 - 17:30 0.50 PULL P DECOMP LD LOGGING TOOLS 17:30 - 19:30 2.00 PULL P DECOMP DOWNLOAD LOGS -TOC FIELD AT 2.975' E-LINE RU EZSV TO E-LINE 19:30 - 20:30 1.00 PULL P ■- DECOMP PRE-JOB SAFETY MEETING P11.1- RIH W/EZSV ON WIRELINE&SET PLUG WITH TOP 2 850' 20:30 21:30 1.00 PULL P ■- DECOMP RU FROM 2,850'TO SURFACE WITH Agb RUNNING TOOL TOOL LD SLB TOOLS 21:30 22:30 1.00 PULL P ■- DECOMP -RU T &TEST EZSV 2, PSI FOR 10 MIN -TEST LOST O PSI 1 1 IN 10 0 MIN RD&BLOW DOWN 22:30 - 23:00 0.50 PULL P -_ DECOMP MU BAKER FISHING 8-1/4"MULTI STRING CUTTER ASSEMBLY TO 196' 23:00 - 00:00 1.00 PULL P DECOMP RIH PICKING UP SINGLES FROM 196'TO 670' 7/26/2010 00:00 - 02:00 2.00 PULL P DECOMP RIH 670'TO 1,892'PICKING UP SINGLES 02:00 - 04:00 2.00 PULL N RREP - DECOMP DIAGNOSE DRAWWORKS 04:00 - 04:30 0.50 PULL P -_ DECOMP LOCATE CUT LOCATION CUT 9-__/:" _ NG AT 2.743' _. Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 4 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date. 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 - 05:15 0.75 PULL P DECOMP ATTEMPT TO ESTABLISH CIRCULATE -HOLE TAKING NO FLUID -HOLE HOLDING PRESSURE -NO RETURNS SEEN HOLD 2,500 PSI ON WELL FOR 15 MINUTES WITH 0 PSI LOST -9.0 PPG BRINE IN HOLE HOLE DEPTH=2,743'MD,2,738'ND 05:15 - 05:30 0.25 PULL P DECOMP POSITION CUTTERS AND MAKE SECOND CUT -CASING FELL ON KNIFES AFTER CUT -TOP DRIVE STALLED OUT 05:30 - 07:00 1.50 PULL P DECOMP CIRCULATE -4.5 BPM,900 PSI 28 BBL SOAP PILL FOLLOWED BY 180 BBL 9.0 BRINE 07:00 - 07:30 0.50 PULL P DECOMP POOH FROM 2,743'TO 2,364' 07:30 - 08:00 0.50 PULL P DECOMP MU RTTS PACKER 08:00 - 08:30 0.50 PULL P DECOMP RIH WITH PACKER TO 2,457'(1 STAND) SET RTTS 1 STAND BELOW TABLE TEST RTTS PACKER 250 PSI LOW FOR 5 MIN, '1,500 PSI HIGH FOR 10 MIN TEST LOST 0 PSI IN 10 MIN BLOW DOWN CHOKE MANIFOLD&KILL LINE 08:30 - 09:30 1.00 PULL P DECOMP PULL WEAR BUSHING PU PACK OFF RUNNING TOOL MU ON STAND OF 5"DP 09:30 - 11:00 1.50 PULL P DECOMP BACK OUT LOCK DOWN SCREWS GLAND NUT CRACKED IN HALF 11:00 - 11:30 0.50 PULL P DECOMP PULL PACK OFF -CAME FREE WITH 10K OVER PULL LD PACK OFF INSTALL WEAR BUSHING INSTALL RTTS RUNNING TOOL INSTALL TIW VALVE&NEW LOCK DOWN SCREW 11:30 - 12:00 0.50 PULL P DECOMP CHANGE OUT ELEVATORS LD RTTS 12:00 - 13:30 1.50 PULL P DECOMP POOH W/BAKER CUTTER ASSEMBLY 13:30 - 14:00 0.50 PULL P DECOMP LD CUTTER ASSEMBLY -HOLE TAKING PROPER FILL 14:00 - 18:00 4.00 PULL P DECOMP PJSM CLOSE SHEARS CHANGE OUT TOP RAMS TO 9-5/8" RU TO TEST -9-5/8"HANGER AND CASING ROSE UP HOLE BLOCKING ACCESS TO TUBING HANGER PROFILE,THEREFORE UNABLE TO TEST UPPER PIPE RAMS 18:00 - 19:30 1.50 PULL P DECOMP MU BAKER SPEAR/GRAPPLE ASSEMBLY ON A DOUBLE SPEAR INTO 9-5/8"CASING PULL&BREAK FREE WITH 200K -STRING WT=160K PULL HANGER ABOVE ROTARY TABLE& REMOVE RESET GRAPPLE IN CASING STRING& LOWER BACK INTO WELL SLACK OFF TO BLOCK WT&RELEASE GRAPPLE Printed 12/17/2010 2:20.19PM North America -ALASKA- BP Page 5 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:30 - 20:30 1.00 PULL P DECOMP RU&TEST 9-5/8"CASING RAMS -250 PSI LOW FOR 5 MIN,3,500 PSI HIGH FOR 5 MIN 20:30 - 21:00 0.50 PULL P DECOMP RIH RE-SPEAR CASING STRING PULL ABOVE FLOOR RELEASE&LD GRAPPLE AND DOUBLE OF DP 21:00 - 21:30 0.50 PULL P DECOMP RU SIDE DOORS,14"UHTS,SKATE, STRIPPING RUBBER, CLEAR FLOOR OF UNNECESSARY TOOLS MU SAFETY VALVE&X-O 21:30 - 00:00 2.50 PULL P DECOMP PRE-JOB SAFETY MEETING PULL 9-5/8"47#L-80 NSCC CASING FROM 2,635'TO 1,487 -HOLE TAKING PROPER FILL 7/27/2010 00:00 - 00:30 0.50 PULL P DECOMP LUBRICATE AND SERVICE RIG 0. 00:30 - 03:00 2.50 PULL P DECOMP PULL 9-5/8"47#L-80 NSCC CASING FROM 1,487'TO SURFACE -67 TOTAL JOINTS -1 CUT JOINT,3.48'LONG; POOR/MISHAPEN FLARE -11 CENTRALIZERS BREAKING CONNECTIONS AT 25,000 FT-LBS 03:00 - 04:00 1.00 PULL P DECOMP RD CASING TOOLS CLEAR RIG FLOOR 04:00 - 04:30 0.50 PULL P DECOMP PU BAKER CASING CUTTER MU CUTTING ASSEMBLY 04:30 - 08:00 3.50 PULL P DECOMP RIH W/5"DP PICKING UP SINGLES FROM SURFACE TO 2,635'MD 08:00 - 08:30 0.50 PULL P DECOMP TAG UP ON 9-5/8"CASING STUMP AT 2,635' MD ATTEMPTS TO WORK THROUGH STUMP UNSUCCESSFUL 08:30 - 09:00 0.50 PULL P DECOMP FLOW CHECK WELL -NO FLOW POOH FROM 2,635'TO SURFACE 09:00 - 11:00 2.00 PULL P DECOMP LAY DOWN MULTI-STRING CASING CUTTER PICK UP 8-1/7"TAPFRFD MII L 11:00 - 12:00 1.00 PULL P DECOMP MAKE UP BHA#5 PER BAKER FISHING AS FOLLOWS: -8-1/2"TAPERED MILL -BIT SUB -1 STAND 5"DRILLPIPE -SPEAR PACKOFF ASSEMBLY -9-5/8"BOWEN-ITCO SPEAR -SPEAR EXTENSION -SPEAR STOP SUB W/10-3/4"RING -6-1/4"LUBRICATOR BUMPER SUB -6-1/4"OIL JAR 12:00 - 12:30 0.50 PULL P DECOMP PERFORM POST-JARRING DERRICK INSPECTION SERVICE AND INSPECT TOP DRIVE DURING DERRICK INSPECTION Printed 12/17/2010 2.20:19PM North America -ALASKA- BP Page 6 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 1, Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) lir Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 13:30 1.00 PULL P DECOMP PICK UP REMAINING COMPONENTS OF BHA #5 AS FOLLOWS: • -CROSSOVER SUB -3 STANDS 6-1/8"DRILL COLLARS -CROSSOVER SUB -6-1/4"INTENSIFIER JAR -2 STANDS HWDP TOTAL BHA LENGTH:608.14' 13:30 - 16:00 2.50 PULL P DECOMP RIH FROM 608'TO 2,600'MD ESTABLISH FISHING PARAMETERS -PUW 125K,SOW 125K, ROT 125K -PROPER DISPLACEMENT ON TRIP IN 16:00 - 17:00 1.00 PULL P DECOMP SLACK OFF AND SET WEIGHT DOWN AT / 2,635'MD. PICK UP AND CONFIRM DEPTH ✓ SET GRAPPLE AND FIRE JARS AT 250K -NO MOVEMENT IN FISH CLOSE ANNULAR PREVENTER AND PUMP AT 7 BPM,1,000 PSI -CASING FISH HYDRAULICING OFF OF BOTTOM -LOSE 55K STRING WEIGHT SHUT DOWN PUMPS AND FSET OFF JARS AGAIN AT 250K -PULL BHA WITH 55K INCREASE IN STRING WEIGHT -HAVE FISH WELL STATIC DURING OPERATION 17:00 - 18:00 1.00 PULL P DECOMP POOH 2 STANDS AND FLOW CHECK WELL -NO FLOW CIRCULATE BOTTOMS-UP -6 BPM,140 PSI 18:00 - 21:00 3.00 PULL P DECOMP POOH FROM 2,447 TO 231'MD -STAND BACK DRILL COLLARS AND HWDP -HOLE TAKING PROPER FLUID 21:00 - 23:30 2.50 PULL P DECOMP HOLD PJSM ON UPCOMING OPERATION PULL 9-5/8"CASING ABOVE ROTARY TABLE AND SET IN SLIPS AND DOG COLLAR RELEASE SPEAR AND PULL SREAR ASSEMBLY OUT OF 9-5/8"CASING STUB. LAY DOWN TAPERED MILL ON END OF BHA RACK BACK STAND OF DRILLPIPE ENGAGE SPEAR INTO 9-5/8"STUB AND LD 9-5/8"CASING -RECOVERED 32.34'CUT JOINT, FULL JOINT, 35.69'CUT JOINT -RECOVERED PIECED OF TWO 9-5/8" CENTRALIZERS CAUGHT BETWEEN SPEAR ASSEMBLY AND 9-5/8"CASING 23:30 - 00:00 0.50 PULL P DECOMP CLEAN AND CLEAR RIG FLOOR 7/28/2010 00:00 - 00:30 0.50 PULL P DECOMP SERVICE TOP DRIVE AND DRAW WORKS Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 7 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date. X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:30 - 01:30 1.00 PULL N HMAN 2,783.47 DECOMP PICK UP CASING CUTTER BHA PER BAKER FISHING AS FOLLOWS: -8-1/2"TAPERED MILL -BIT SUB -DOUBLE PIN SUB -8-1/4"MULTI-STRING CUTTER(KNIVES SIZED FOR 9-5/8"CASING) -CROSSOVER SUB -2 STANDS HWDP TOTAL BHA LENGTH:202.58' RIH ON DRILLPIPE AND TAG EZSV AT 2,850' TO CONFIRM DEPTH POOH TO 2,770'THEN RIH TO 2,794'MD -CASING CUTTER KNIVES AT CUT DEPTH OF 2,785'MD 01:30 - 02:00 0.50 PULL N HMAN 2,783.47 DECOMP ESTABLISH CUTTING PARAMETERS -PUW 110K,SOW 110K,ROT 110K AT 80 RPM CUT 9-5/8"CASING AT 2,785'MD -80 RPM,0-4K TQ,STAGE UP PUMPS TO 5 BPM -80 RPM,4K TQ,7 BPM AT 920 PSI -80 RPM,0-3K TQ,7 BPM,660 PSI AND FALLING.INDICATION OF CASING CUT AFTER 5 MINUTES 02:00 - 03:30 1.50 PULL N HMAN 2,783.47 DECOMP FLOW CHECK WELL -NO FLOW POOH FROM 2,785'TO 202'MD ,-STAND BACK HWDP 03:30 - 04:00 0.50 PULL N -- HMAN 2,783.47 DECOMP MAKE SERVICE BREAKS ON CASING CUTTER LAY DOWN CASING CUTTER ASSEMBLY 04:00 - 05:00 1.00 PULL N HMAN 2,783.47 DECOMP MAKE UP 9-5/8"CASING SPEAR BHA PER BAKER FISHING REP AS FOLLOWS: -8-1/2"TAPERED MILL -BIT SUB -SPEAR PACKOFF ASSEMBLY -9-5/8"BOWEN-ITCO SPEAR -SPEAR EXTENSION -SPEAR STOP SUB W/10-3/4"RING -6-1/4"LUBRICATOR BUMPER SUB -6-1/4"OIL JAR -CROSSOVER SUB -3 STANDS 6-1/8"DRILL COLLARS -CROSSOVER SUB -6-1/4"INTENSIFIER JAR -2 STANDS HWDP TOTAL BHA LENGTH:513.72' 05:00 - 06:00 1.00 PULL N HMAN 2,783.47 DECOMP RIH ON DRILLPIPE FROM 514'TO 2,720'MD 06:00 - 06:30 0.50 PULL N HMAN 2,783.47 DECOMP PERFORM PRE-JARRING DERRICK INSPECTION PRIOR TO SPEARING 9-5/8"FISH 06:30 - 07:00 0.50 PULL N HMAN 2,783.47 DECOMP TAG UPON CASING STUMP WITH STOP SUB AT 2,743'MD SET DOWN 15K AND ROTATE 1 TURN TO THE LEFT TO ENGAGE SPEAR PICK UP 25K OVER STRING WEIGHT INCREASE TO 150K -FISH FREE 07:00 - 08:00 1.00 PULL N HMAN 2,783.47 DECOMP CIRCULATE BOTTOMS UP -6 BPM,140 PSI 08:00 - 09:00 1.00 PULL N HMAN 2,783.47 DECOMP POOH FROM 2,589'TO 513'MD Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 8 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Firs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 10:00 1.00 PULL N HMAN 2,783.47 DECOMP LD BHA -STAND BACK HWDP -LD DRILL COLLARS 1X1 DOWN PIPE SKATE -LD JARS 10:00 - 10:30 0.50 PULL N HMAN 2,783.47 DECOMP PULL SPEAR TO RIG FLOOR RELEASE SPEAR FROM 9-5/8"FISH AND LD SAME LD 9-5/8"CASING FISH 10:30 - 12:00 1.50 PULL P DECOMP CLEAN AND CLEAR RIG FLOOR MAKE SERVICE BREAKS ON SPEAR AND REMOVE FROM RIG FLOOR 12:00 - 13:00 1.00 WHSUR P DECOMP PULL WEAR BUSHING INSTALL TEST PLUG 13:00 - 15:00 2.00 BOPSUR P DECOMP CHANGE TOP RAMS FROM 9-5/8"FIXED TO 3-1/2"X 6"VBR 15:00 - 16:00 1.00 BOPSUR P DECOMP RIG UP AND TEST3-1/2"X 6"VBR WITH 5" TEST JOINT A 6P -250 PSI LOW,3,500 PSI HIGH F/5MIN EACH // -CHARTED TEST RIG DOWN TEST EQUIPMENT PULL TEST PLUG AND INSTALL WEAR RING 16:00 - 16:30 0.50 STCTPL P WEXIT MAKE UP 5"MULESHOE AND 4 EA 5" DRILLPIPE PUP JOINTS -TOTAL LENGTH:22.06' 16:30 - 18:00 1.50 STCTPL P WEXIT RIH ON DRILLPIPE STANDS FROM 22'TO 2,850' TAG EZSV AT 2,850'MD -PICK UP 3'TO BRING DRILLPIPE AT WORKING HEIGHT ON RIG FLOOR -PROPER DISPLACEMENT ON TRIP IN 18:00 - 19:30 1.50 STCTPL P WEXIT CIRCULATE BOTTOMS-UP -6 BPM,100 PSI -WHILE CIRCULATING, HOLD PJSM ON BALANCED PLUG CEMENT JOB Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 9 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1 Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:30 - 21:00 1.50 STCTPL P WEXIT PUMP 72 BBL 17.0 PPG CLASS G BALANCED PLUG AS FOLLOWS: 19:00 BATCH MIX 13.0 PPG MUDPUSH II 19:51 PUMP 5 BBL 13.0 PPG MUD PUSH II AT 2.6 BPM WITH 145 PSI 19:55 PRESSURE TEST KICKOUTS TO 1,900 PSI. PRESSURE TEST CEMENT LINES TO 4,000 PSI 20:00 PUMP 15 BBL 13.0 PPG MUD PUSH II AT 3.2 BPM WITH 155 PSI 20:05 SHUT DOWN AND START BATCHING 17.0 PPG G CEMENT 20:18 START PUMPING 17.0 PPG CEMENT AWAY AT 3.6 BPM -PUMP 72.1 BBLS OF 17.0 PPG CLASS G CEMENT 20:40 PUMP 3.0 BBL 13.0 PPG MUD PUSH AT 2.1 BPM WITH 105 PSI 20:41 BEGIN DISPLACING CEMENT WITH BRINE. -DISPLACE WITH SCHLUMBERGER CEMENTERS,9.0 PPG BRINE. -5.0 BPM,240 PSI 20:48 SHUT DOWN PUMPS AT 34.1 BBL DISPLACED 20:50 CLOSE 1/4 TURN VALVE AND DISCONNECT CEMENT LINE FROM DRILLPIPE.OPEN 1/4 TURN VALVE. DRILLPIPE ON VACUUM.POOH AT 7 MIN/STD FOR 2 STANDS -STANDS PULLING DRY CEMENT IN PLACE AT 20:48 HRS. -FULL RETURNS THROUGHOUT JOB. CEMENT JOB VOLUME: 72.1 BBLS 17.0 PPG CLASS G TAIL PUMPED; 405 SACKS AT 1.00 CUFT/SX 21:00 - 22:00 1.00 STCTPL P WEXIT POOH FROM 2,664'TO 2,097'MD -PULLED AT 6-7 MIN/STD TO MINIMIZE PLUG DISTURBANCE '22:00 - 23:30 1.50 STCTPL P WEXIT DROP WIPER BALL AND PUMP SURFACE TO SURFACE -6 BPM,80 PSI -220 BBLS INTO DISPLACEMENT,TAKE RETURNS TO ROCK WASHER -SAW INCREASED PH TO 10.8 INDICATING CONTAMINATED MUD PUSH -NO CEMENT SEEN AT SURFACE -WIPER BALL NOT SEEN AT SURFACE 23:30 - 00:00 0.50 STCTPL P WEXIT FLOW CHECK WELL -NO FLOW POOH FROM 2,097'TO 1,251'MD 7/29/2010 04:30 - 12:00 7.50 BOPSUR P WEXIT TROUBLESHOOT LEAK IN BOP EQUIPMENT -LEAK IDENTIFIED DURING BODY TEST -ISOLATED LEAK TO VALVES 13 AND 14 -GREASED AND FUNCTIONED VALVES -RETEST SUCCESSFUL CHANGE OUT SENSATOR FOR TEST REMOVE TEST LINES AND FILL WITH NEW TEST FLUID Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 10 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date. X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad 1 — Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:00 - 00:30 0.50 STCTPL P WEXIT LUBRICATE AND SERVICE RIG 00:30 - 01:30 1.00 STCTPL P WEXIT POOH FROM 1,251'TO SURFACE 01:30 - 02:30 1.00 STCTPL P WEXIT LAY DOWN PUP JOINTS AND MULESHOE CLEAN AND CLEAR RIG FLOOR -SIMOPS:PERFORM DERRICK INSPECTION 02:30 - 04:30 2.00 BOPSUR P WEXIT RIG UP TO TEST BOPE -PICK UP 5"TEST JOINT.MAKE UP 4'PUP JOINT TO END OF TEST JOINT TO BRING TOP OF TEST JOINT TO WORKABLE HEIGHT ON RIG FLOOR -INSTALL TEST PLUG IN CASING SPOOL -MAKE UP TIW AND DART VALVE AHEAD OF TEST RIG.UP TEST PUMP,TEST MANIFOLD,LINES, AND CHART RECORDER FILL CHOKE MANIFOLD CLOSE UPPER RAMS ON TEST JOINT AND PERFORM BODY TEST 12:00 - 18:00 6.00 BOPSUR P WEXIT TEST BOPE PER AOGCC REQUIREMENTS -250 PSI LOW,3,500 PSI HIGH,5 MIN EACH -UPPER RAMS(3-1/2"X 6")W/5"TEST JOINT -LOWER RAMS(2-7/8"X 5")W/5"TEST JOINT -CHOKE&KILL HCR VALVES,BLIND OCe SHEARS,MANUAL CHOKE AND KILL VALVES -ANNULAR PREVENTOR TO 250 PSI LOW, 2,500 PSI HIGH WITH 5"TEST JOINT -VALVES 1,2,3,4,5,6,7,8,9,10,11,12,13,14 -MANUAL AND HYDRAULIC CHOKES(SUPER CHOKE) -UPPER IBOP ON TOP DRIVE -WEATHERFORD TIW AND DART VALVES -DOYON TIW AND DART VALVES -ACCUMULATOR TEST -PIT VOL GAIN/LOSS,FLOW PADDLE INCREASE,AND TRIP TANK GAIN/LOSS TEST WITNESSED BY BP WSL BILL DECKER, DOYON TP BOBBY INGRAM,AND AOGCC REP JEFF JONES 18:00 - 18:30 0.50 BOPSUR P WEXIT RIG DOWN TEST EQUIPMENT BLOW DOWN CHOKE MANIFOLD RE-ALIGN VALVES FOR DRILLING OPERATIONS 18:30 - 19:00 0.50 BOPSUR P WEXIT INSTALL WEAR RING 19:00 - 20:00 1.00 BOPSUR P WEXIT MOBILIZE SCRAPER ASSEMBLY TO RIG FLOOR 20:00 - 23:30 3.50 BOPSUR N RREP -1.53 WEXIT CHANGE OUT BEARING ON DYNAMATIC BRAKE ON DRAWORKS SIM-OPS WHILE WORKING ON DRAWORKS: -DERRICKMAN TO CONTINUE WORKING ON BILL HOPKINS AUDIT Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 11 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 00:00 0.50 CLEAN P WEXIT MAKE UP CLEANOUT BHA AS FOLLOWS: -USED 12-1/4"MILL TOOTH BIT -BAKER JUNK BASKET -13-3/8"CASING SCRAPER -BIT SUB WITH FLOAT -DRILLING JAR -2 STANDS HWDP TOTAL BHA LENGTH:229.08' 7/30/2010 00:00 - 00:30 0.50 CLEAN P WEXIT FINISH PICKING UP CLEANOUT BHA 00:30 - 02:00 1.50 CLEAN P WEXIT RIH ON DRILLPIPE 1X1 TO 465' 02:00 - 02:30 0.50 CLEAN P WEXIT SERVICE TOP DRIVE AND DRAWORKS 02:30 - 03:00 0.50 CLEAN P WEXIT WORK DRILL STRING AT 465' STACK OUT 10K -ABLE TO PICK UP WITH NO DRAG PUMP SURFACE-TO-SURFACE 6 BPM,70 PSI STACK OUT 10K AT SAME LOCATION -ABLE TO PICK UP WITH NO DRAG 03:00 - 05:00 2.00 CLEAN P WEXIT SPOT STEEL LUBE PILL AT BOTTOM OF BHA -6 BPM,70 PSI ROTATE 30 RPM,OK TQ AND ATTEMPT TO WORK THROUGH -STACK OUT AT SAME LOCATION -ABLE TO PICK UP WITH NO DRAG 05:00 - 06:30 1.50 CLEAN P WEXIT POOH TO SURFACE LD 12-1/4"BIT AND 13-3/8"CASING SCRAPER -NO DAMAGE OBSERVED ON BIT,BOOT BASKET OR SCRAPER 06:30 - 07:00 0.50 CLEAN P WEXIT PICK UP 12-1/4"STRING MILL WITH BULLNOSE ON END PICK UP OIL JAR 07:00 - 08:00 1.00 CLEAN P WEXIT RIH TO 465'AND TAG UP ON SAME LOCATION 08:00 - 09:00 1.00 CLEAN P WEXIT ESTABLISH PARAMETERS PUMP 4 BPM,60 PSI STAGE UP ROTATION FROM 50 TO 110 RPM, 0-1K TQ DRESS OBSTRUCTION FROM 465'TO 466' -WORKED 1-2K WOB IN SMALL INCRIMENTS (1-2")UNTIL TORQUE STARTED TO BECOME ERRATIC(STRING MILL GRABBING OBSTRUCTION) -STOPPED UNTIL ROTATION WAS SMOOTH -REPEATED PROCESS UNTIL NO TORQUE SPIKES OBSERVED WORKED STRING MILL THROUGH DEPTH MULTIPLE TIMES WITH PUMPS OFF -NO DRAG OBSERVED 09:00 - 12:00 3.00 CLEAN P WEXIT RIH FROM 466'TO 2,186'MD -TAGGED OBSTRUCTIONS AT 1,186'AND 1,255'MD -ROTATED 90 RPM,OK TQ,3 BPM,60 PSI AND WORKED THROUGH TIGHT SPOTS 12:00 - 13:00 1.00 CLEAN P WEXIT WASH DOWN FROM 2,186'TO 2,357'MD -3 BPM,60 PSI -START TAKING WEIGHT WASH AND REAM TO 2,358'MD -520 GPM,420 PSI,65 RPM,5-8K TQ -CALLED TOP OF CEMENT AT 2,358'MD Printed 12/17/2010 2:20:19PM IDNorth America -ALASKA- BP Page 12 of 37 Operation Summary Report Common Wet Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 14:30 1.50 CLEAN P WEXIT CIRCULATE 30 BBL HIGH-VIS SWEEP SURFACE-TO-SURFACE -520 GPM,450 PSI -ROTATE AND RECIPROCATE DRILL STRING 14:30 - 17:30 3.00 CLEAN P WEXIT TEST 13-3/8"CASING AGAINST CEMENT PLUG TO 250 PSI FOR 5 CHARTED MINUTES -GOOD TEST INCREASE PRESSURE TO 3,500 PSI AND CHART FOR 30 MINUTES -LOST 140 PSI IN FIRST 15 MINUTES -LOST 70 PSI IN SECOND 15 MINUTES -BLEED RATE IN SECOND 15 MINUTES WAS <5 PSI/MIN -GOOD TEST 17:30 - 19:00 1.50 CLEAN P WEXIT POOH FROM 2,358'TO SURFACE 19:00 - 19:30 0.50 CLEAN P WEXIT LAY DOWN STRING MILL,BULL NOSE,AND OIL JAR -STRING MILL IN GAUGE 19:30 - 20:30 1.00 CLEAN P WEXIT CLEAR RIG FLOOR MOBILIZE DRILLING BHA COMPONENTS TO RIG FLOOR 20:30 - 22:00 1.50 CLEAN P WEXIT MAKE UP 12-1/4"DRILLING BHA PER SPERRY DRILLING AS FOLLOWS: -12-1/4"REEDHYCALOG DTX719M PDC BIT -8", 1.5 DEGREE MUD MOTOR WITH ABI AND SLEEVE STABILIZER -NON-MAG FLOAT SUB -NON-MAG INTEGRAL BLADE STABILIZER -NON-MAG MWD SUITE(DM COLLAR, DIRECTIONAL,GR,RES, PWD,TM COLLAR) -NON-MAG UBHO 22:00 - 22:30 0.50 CLEAN P. WEXIT UPLOAD MWD -HOLD SPILL DRILL IN CELLAR WHILE PERFORMING UPLOAD 22:30 - 00:00 1.50 CLEAN P WEXIT CONTINUE TO MAKE UP 12-1/4"DRILLING BHA PER SPERRY DRILLING AS FOLLOWS: -NON-MAG INTEGRAL BLADE STABILIZER -NON-MAG FLEX COLLAR X3 -HYDRAULIC DRILLING JAR 7/31/2010 00:00 - 00:30 0.50 CLEAN P WEXIT CONTINUE TO MAKE UP 12-1/4"DRILLING BHA PER SPERRY AS FOLLOWS: -5"X3"HWDP X6 TOTAL BHA LENGTH:403.66' SHALLOW TEST MWD 00:30 - 03:00 2.50 CLEAN P WEXIT RIH FROM 403'TO 2,293'ON DRILLPIPE FROM PIPE SHED -FILL PIPE AT 2,000' 03:00 - 08:00 5.00 CLEAN P WEXIT RIH ON STANDS AND TAG TOC AT 2,358' DRILL OUT CEMENT PLUG FROM 2,358'TO 2,682'MD -500 GPM,1,050 PSI -70 RPM,5-7K TQ -2-4K WOB D2 KICK WHILE DRILLING DRILL Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 13 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 09:30 1.50 CLEAN P WEXIT CIRCULATE 2 BOTTOMS-UP VOLUMES -560 GPM,1,120 PSI -ROTATE AND RECIPROCATE 70 RPM,1-5K TO FIRE DRILL 09:30 - 11:00 1.50 CLEAN P WEXIT SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE,BLOCKS,AND ADJUST BRAKES (V 11:00 - 12:30 1.50 CLEAN P WEXIT DISPLACE WELL FROM 9.0 PPG BRINE TO 9.0 PPG LSND MUD -420 GPM,530 PSI -ROTATE AND RECIPROCATE 70 RPM,3K TQ SIM-OPS:RIG UP SPERRY WIRELINE AND GYRODATA GYRO TOOLS FOR SURVEYS 12:30 - 14:30 2.00 CLEAN P WEXIT CLEAN PITS AND LOAD WITH CLEAN 9.0 PPG LSND MUD 14:30 - 15:00 0.50 STCTPL P WEXIT DRILL FROM 2,682'TO 2,705'MD PULL BACK INSIDE SHOE TO 2,666' 15:00 - 16:00 1.00 STCTPL _P WEXIT RUN GYRO SURVEY ON WIRELINE -TATTLE TAIL ON GYRO INDICATED GYRO DID NOT J INTO UBHO PA/ 16:00 - 17:00 1.00 STCTPL N DPRB 2,703.47 WEXIT RE-RUN GYRO SURVEY 17:00 - 18:00 1.00 STCTPL P WEXIT DRILL FROM 2,705'TO 2,790'MD -PUW,127K,SOW 125K, ROT 126K -710 GPM,1,360 PSI ON,1,240 PSI OFF -60 RPM,TQ 3-6K ON,3K OFF 18:00 - 19:00 1.00 STCTPL P WEXIT CIRCULATE BOTTOMS-UP -710 GPM,1,240 PSI OBTAIN CLEAN-HOLE ECD OF 9.37 19:00 - 20:30 1.50 EVAL P WEXIT RIG UP AND PERFORM LOT -MUD WEIGHT 9.0 PPG -12.04 PPG EMW ACHIEVED RIG DOWN TEST EQUIPMENT 20:30 - 00:00 3.50 DRILL P INT1 DIRECTIONALLY DRILL FROM 2,790'TO 2,949' MD -PUW 130K,SOW 120K,ROT 125K -706 GPM,1,340 PSI ON,1,250 PSI OFF -60 RPM,TQ 6K ON,3K OFF -2-5K WOB -MW IN:9.1 PPG,MW OUT:9.2 PPG;CALC CLEAN HOLE ECD:9.24;ACTUAL:9.60 ART:0.33,AST:0.59,ADT:0.92 D2 KICK WHILE DRILLING DRILL Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 14 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/1/2010 00:00 - 12:00 12.00 DRILL P INT1 DIRECTIONALLY DRILL FROM 2,949'to 3,897' MD -PUW 150K,SOW 135K,ROT 145K -800 GPM,1,890 PSI ON,1,660 PSI OFF -80 RPM,TQ 8K ON,5K OFF -5K WOB -MW IN:9.0 PPG,MW OUT:9.0 PPG; CALC CLEAN HOLE ECD:9.18,ACTUAL:9.40 ART:0.82,AST:2.76,ADT 3.58 GYRO EVERY STAND UNTIL MWD ACHEIVES CLEAN SURVEYS -FIRST CLEAN SURVEY REACHED AT 3,320' MD -RD GYRO AT 3,329' FIRE DRILL IN BOILER ROOM 12:00 - 17:30 5.50 DRILL P INT1 DIRECTIONALLY DRILL FROM 3,897'TO 4,374' MD -PUW 164K,SOW 137K,ROT 150K -782 GPM,2,000 PSI ON,1,760 PSI OFF -80 RPM,TQ 8K ON,5K OFF -7KWOB 17:30 - 19:00 1.50 DRILL N RREP -1.53 INT1 CHANGED FILTERS AND RECHARGED ACCUMULATOR SYSTEM ON TOP DRIVE 19:00 - 00:00 5.00 DRILL P INT1 DIRECTIONALLY DRILL FROM 4,374'TO4,796' MD -PUW 171K,SOW 135K,ROT 151K -786 GPM,2,040 PSI ON,1,930 PSI OFF -75 RPM,TQ 8K ON,7K OFF -5KWOB -MW IN:9.0 PPG,MW OUT:9.0 PPG;CALC CLEAN HOLE ECD:9.39,ACTUAL:9.49 ART:2.76,AST:2.49,ADT 5.25 TOTAL ADT FOR LAST 24 HRS:8.83 8/2/2010 00:00 - 12:00 12.00 DRILL P INT1 DIRECTIONALLY DRILL FROM 4,796'TO 6,070' MD -PUW 190K,SOW 150K,ROT 165K -800 GPM,2,590 PSI ON,2,360 PSI OFF -80 RPM,TQ 15K ON,10K OFF -5K WOB -MW IN:9.2 PPG,MW OUT:9.3 PPG;CALC CLEAN HOLE ECD:9.47,ACTUAL:9.76 ART:5.46,AST: 1.57,ADT 7.03 SPILL DRILL 12:00 - 00:00 12.00 DRILL P INT1 DIRECTIONALLY DRILL FROM 6,070'TO 6.954' MD -PUW 205K,SOW 154K, ROT 157K -776 GPM,2,890 PSI ON,2,550 PSI OFF -80 RPM,TQ 12K ON,9K OFF -10-20K WOB -MW IN:9.9 PPG,MW OUT: 10.0 PPG; CALC CLEAN HOLE ECD: 10.25,ACTUAL: 10.46 ART:4.58,AST: 1.59,ADT 6.17 TOTAL ADT FOR LAST 24 HRS: 13.20 D2 KICK WHILE TRIPPING DRILL Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 15 of 37 Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/3/2010 00:00 - 14:30 14.50 DRILL P INT1 DIRECTIONALLY DRILL FROM 6,954' TO 7,575' -PUW 215K,SOW 163K,ROT 186K -725 GPM,3,300 PSI ON,2,900 PSI OFF -90 RPM,TQ 15K ON,2K OFF -15-30KWOB -MW IN: 11 PPG,MW OUT: 11 PPG 14:30 - 17:00 2.50 DRILL P INT1 CBU X 2 -CALCULATED ECD-11.45 PPG ACTUAL ECD-11.54 PPG 17:00 - 22:00 5.00 DRILL P INT1 WIPER TRIP TO SHOE. FROM 5450 TO 4800 PULLED TIGHT OCCASIONALLY 35 MAXIMUM, MOST 20 TO 25K OVER.WIPED JUST ONCE THROUGH ALL SECTIONS AND ELIMINATED PROBLEM, PUMPS NOR BACKREAMING NOT NECESSARY.HOLE IN GOOD SHAPE 22:00 - 00:00 2.00 DRILL P INT1 SLIP&CUT DRILLING LINE.SERVICE TOP DRIVE,CROWN AND DRAWWORKS. INSPECT DEAD MAN TO INCLUDE PLATE,BOLTS& LOAD CELL. 8/4/2010 00:00 - 03:30 3.50 DRILL P INT1 RIH AFTER WIPER.NO PROBLEMS.WASH LAST 100'TO 7,575. 03:30 - 05:00 1.50 DRILL P INT1 CIRCULATE HI VIS SWEEP.HOLE UNLOADING. HAD TO SLOW PUMPS TO MINIMIZE MUD OVER SHAKERS. 05:00 - 00:00 19.00 DRILL P INT1 DIRECTIONAL DRILL FROM 7,575'TO 8,611'. -PUW 237K,SOW 170K,ROT 200K -745 GPM,3,600 PSI ON,3,140 PSI OFF -90 RPM,TQ 15K ON,12K OFF -15-35KWOB -MW: 11 PPG -CALCULATED ECD=11.45 PPG,ACTUAL ECD =11.54 PPG FIRE DRILL ON CARLO'S CREW SPILL DRILL ON SMITH'S CREW 8/5/2010 00:00 - 06:30 6.50 DRILL P INT1 DRILL DIRECTIONAL HOLE FROM 8,611'TO 8717'. EXPERIENCING VERY SLOW ROP THROUGH THE MILUVEACH.DISTINCT PROBABILITY OF HEAVY CLAYS BALLING BIT. PUMPING NUT PLUG&SAPP IN ATTEMPTS TO UN-BALL BIT. D1 DRILL-CARLOS CREW 06:30 - 07:00 0.50 DRILL P INT1 PUMP NUT PLUG&SAPP SWEEP WHILE WORKING BIT OFF BOTTOM 07:00 - 09:00 2.00 DRILL P INT1 DIR.DRILL. FROM 8,717'TO 8,755'.STILL SLOW ROP 09:00 - 11:00 2.00 DRILL P INT1 WIPE THROUGH THE MILUVEACH TO 7,758'. NO TIGHT SPOTS ON WIPER SIMOPS; REPAIR SWAB ON MUD PUMP 11:00 - 00:00 13.00 DRILL P INT1 DIR DRILL FROM 8,755'TO 9,043' BIT HAS ERRATIC ROP.CONTINUING TO PUMP NUT PLUG/SAPP SWEEPS. -PUW 250K,SOW 172K,ROT 205K -740 GPM,3,500 PSI ON,3,200 PSI OFF -90-100 RPM,TQ 17.5K ON,15K OFF -15-35KWOB -MW: 11 PPG -CALCULATED ECD= 11.45 PPG,ACTUAL ECD = 11.54 PPG FIRE DRILL ON CARLO'S CREW FIRE DRILL ON SMITH'S CREW Printed 12/17/2010 2:20.19PM North America -ALASKA- BP Page 16 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations hr (ft) 8/6/2010 00:00 - 10:00 10.00 DRILL P INT1 DIR DRILL FROM 9,043'TO 9,415'.NUT PLUG& SAPP SWEEPS HELPING TO CONTROL BIT BALLING. -PUW 259K,SOW 179K,ROT 208K -745 GPM,2,670 PSI ON,2,570 PSI OFF 90-100 RPM,TQ 18K ON,17K OFF -8 15K WOB MW:11 PPG -CALCULATED ECD=11.45 PPG,ACTUAL ECD =11.61 PPG NOTICED 500 PSI DROP IN SPP. 10:00 - 17:30 7.50 DRILL N DFAL INT1 POH WET LOOKING FOR WASH-OUT.FOUND TOP BOX ON JARS WASHED OUT ALONG WITH PIN OF CONNECTED JT.OF HWDP. 17:30 - 21:30 4.00 DRILL N DFAL INT1 POH&UD MOTOR&BIT,DOWN LOAD MWD/LWD 21:30 - 22:30 1.00 DRILL P INT1 WEEKLY BOPE FUNCTION TEST-ALL OK 22:30 - 00:00 1.50 DRILL N DFAL INT1 MOB BHA TO FLOOR, M/U BIT&MOTOR, ADJUST MOTOR TO 1.15 DEGREE BEND AND ORIENT.SPILL DRILL 8/7/2010 00:00 - 03:00 3.00 DRILL N DFAL INT1 CONTINUE M/U BHA,UP-LOAD MWD/LWD, RIH&SHALLOW TEST-OK. 03:00 - 04:00 1.00 DRILL. N DFAL INT1 RIH TO 13 3/8"SHOE @ 2,698'. FILLING EVERY 20 STANDS. 04:00 - 05:00 1.00 DRILL N DFAL INT1 CBU 650 GPM,1740 PSI,CREW PERFORMED FIRE DRILL=1:22 MIN RESPONSE TIME 05:00 - 06:30 1.50 DRILL N DFAL INT1 CUT&SLIP DRILLING LINE,SERVICE TOP DRIVE 06:30 - 08:30 2.00 DRILL N DFAL INT1 RIH TO 6,597. FILLING EVERY 20 STANDS. 08:30 - 10:00 1.50 DRILL N DFAL INT1 CBU.740 GPM,2970 PSI 10:00 - 12:00 2.00 DRILL N DFAL INT1 RIH TO 9,146'-STARTED TAKING WEIGHT 12:00 - 13:00 1.00 DRILL N DFAL INT1 WASH&REAM TO PREVIOUS TD OF 9,415'. 13:00 - 13:30 0.50 DRILL N DFAL _ INT1 CIRCULATE ON BOTTOM UNTIL ECD DROPPED BELOW 11.6. 13:30 - 00:00 10.50 DRILL P INT1 IIIRFOTIONAI fRII I AHFAf1 FROM c1,41 5'TO 9,899' -PUW 278K,SOW 170K,ROT 214K -763 GPM,3,950 PSI ON,3,550 PSI OFF -100 RPM,TQ 20K ON,17K OFF -18K WOB -MW: 11 PPG CREW PERFORMED D2 DRILL,50 SECOND RESPONSE TIME 8/8/2010 00:00 - 00:00 24.00 DRILL P INT1 DIRECTIONAL DRILL AHEAD FROM 9,899'TO 10,429'. -PUW 295K,SOW 177K, ROT 224K -750 GPM,3,860 PSI ON,3,500 PSI OFF -110 RPM,TQ 24K ON,22K OFF -10-25KWOB -MW: 11.1 PPG 8/9/2010 00:00 - 05:30 5.50 DRILL P INT1 DIRECTIONAL DRILL FROM 10,429'TO 10,540'. ■- STOPPED DRILLING TO CIRCULATE FOR SAMPLES PER GEOLOGISTS. 05:30 - 07:00 1.50 DRILL P -_ INT1 CBU FOR SAMPLES 110 RPM,750 GPM,3430 PSI. 07:00 11:30 4.50 DRILL P ■- INT1 WIPER TRIP TO THRZ 7, NO PROBLEMS. ***D-1 DRILL" AFTER AAR AFTER R D-1 DRILL RIH TO BTM, PU 305K,SO 175K,ROT 225K Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 17 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) I _ Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11:30 - 14:30 3.00 DRILL P INT1 PUMP SWEEP S/S,R&R 140 RPM,825 GPM, 4200 PSI.CBU 2X TIL CLEAN.STAND BACK A STAND EVERY 30 MINUTES. 14:30 - 22:00 7.50 DRILL P INT1 POH ON ELEVATORS-GOOD HOLE-NO PROBLEMS. 22:00 - 00:00 2.00 DRILL P INT1 LID 2 STANDS DP,HWDP&FLEX COLLARS. 8/10/2010 00:00 - 02:00 2.00 DRILL P ` INT1 CONTINUE LAYING DOWN BHA DOWNLOAD MWD ON RIG FLOOR SPILL DRILL= 1:05 MIN 02:00 - 03:00 1.00 BOPSUR P INT1 CLEAN AND CLEAR RIG FLOOR DRAIN STACK IN PREPARATION FOR CHANING RAMS 03:00 - 04:30 1.50 BOPSUR P INT1 CHANGE UPPER!RAMS FROM 3-1/2"X 6" VARIABLES TO 9-5/8" 04:30 - 05:00 0.50 BOPSUR P INT1 INSTALL 9-5/8"TEST PLUG 05:00 - 06:00 1.00 BOPSUR P INT1 RU TEST EQUIPMENT TEST WITH 9-5/8"TEST JOINT. -LOW OF 250 PSI AND HIGH OF 3,500 PSI, TESTS CHARTED FOR 5 MINUTES EACH _ 06:00 - 06:30 0.50 BOPSUR P INT1 PULL TEST PLUG LD TEST JOINT 06:30 - 07:00 0.50 CASING P INT1 MAKE 9-5/8"LANDING JOINT DUMMY RUN • 07:00 - 10:00 3.00 CASING P INT1 RU TO RUN 9-5/8"CASING AND TORQUE TURN INSPECT DERRICK 10:00 - 10:15 0.25 CASING P INT1 PRE-JOB SAFETY MEETING 10:15 - 16:30 6.25 CASING P INT1 MU SHOE TRACK RUN 9-5/8"CASING FROM SURFACE TO 13-3/8"CASING SHOE @ 2,698'MD -9-5/8"47#,L-80, BTC-M(5 JTS) -9-5/8"40#,L-80, BTC(43 JTS) -9-5/8"40#,L-80, HYD 563(17 JTS) -RIH @ 1 JT/MIN FILLING EVERY JOINT PUW-141K;SOW-130K 16:30 - 17:30 1.00 CASING P INT1 CIRCULATE STRING VOLUME -RECIPROCATE WILE CIRCULATING -STAGE UP TO380 GPM,700 PSI -FINAL CIRC PRESSURE-440 PSI,340 GPM -PUW-150K;SOW-139K 17:30 - 20:30 3.00 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 2,698'TO 3,871'MD -CIRCULATE EVERY 10 JOINTS -PUW-205K;SOW-165K 20:30 - 21:00 0.50 CASING P INT1 CIRCULATE 0.5 TIMES BOTTOMS UP -RECIPROCATE WILE CIRCULATING -STAGE UP TO 300 GPM,550 PSI -FINAL CIRCULATING PRESSURE-550 PSI -PUW-205K;SOW-165K 21:00 - 21:45 0.75 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 3,871'TO 4,275'MD -CIRCULATE EVERY 10 JOINTS -PUW-225K;SOW-170K 21:45 - 22:15 0.50 CASING P INT1 CIRCULATE 1 TIMES BOTTOMS UP -RECIPROCATE WILE CIRCULATING -STAGE UP TO 300 GPM,550 PSI -FINAL CIRCULATING PRESSURE-490 PSI -PUW-220K;SOW-170K Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 18 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) I Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:15 - 23:00 0.75 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 4,275'TO 4,700'MD -CIRCULATE EVERY 10 JOINTS -PUW-245K;SOW-170K 23:00 - 23:30 0.50 CASING P INT1 CIRCULATE 1 TIMES BOTTOMS UP -RECIPROCATE WILE CIRCULATING -STAGE UP TO 300 GPM,540 PSI -FINAL CIRCULATING PRESSURE-520 PSI -PUW-240K;SOW-170K 23:30 - 00:00 0.50 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 4,700'TO 4,933'MD -CIRCULATE EVERY 10 JOINTS 8/11/2010 00:00 - 05:00 5.00 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 4,933'TO7,100'MD -CIRCULATE EVERY 10 JOINTS -300 BPM,710 PSI -PUW-345K;SOW-205K 05:00 - 06:00 1.00 CASING P. INT1 CIRCULATE 1 TIMES BOTTOMS UP -RECIPROCATE WILE CIRCULATING -STAGE UP TO 300 GPM,700 PSI -PUW-320K;SOW-190K 06:00 - 07:30 1.50 CASING N RREP INT1 WORK ON PIPE SKATE SIMOPS: CIRCULATE 1.5 TIMES BOTTOMS UP -RECIPROCATE WILE CIRCULATING -300 GPM,700 PSI -PUW-320K;SOW-190K 07:30 - 10:30 3.00 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 7,100'TO 7,591'MD -CIRCULATE EVERY 10 JOINTS -170 GPM,430 PSI -PUW-360K;SOW-225K 10:30 - 12:30 2.00 CASING P INT1 ATTEMPT TO RUN IN FROM THRZ 7,591'TO TD -TAKING 30KLBS AND LOSING RETURNS EVERY 40' -WASH DOWN 5 JOINTS FROM 7,836'TO 7,999' -CIRCULATE EVERY 10 JNTS TO TKNG 8,897' 12:30 - 13:30 1.00 CASING P INT1 RUN 9-5/8"CASING IN OPEN HOLE FROM 8,897'TO 9,097'MD -IN KINGAK -NO CIRCULATION -TAKING 50KLBS AND NO RETURNS -NOT ABLE TO PICK UP PIPE DUE TO RIG WEIGHT CAPACITY,8,846'BREAKOVER AT 445 KLBS -SOW-205K 13:30 - 17:30 4.00 CASING P INT1 WASH 95/8"CASING FROM 9,097 TO 10,535' THROUGH KINGAK -WASH DOWN AT 5 BPM,650 PSI -SLACK OFF WEIGHT 200-220KLBS 17:30 - 20:30 3.00 CASING P INT1 WASH LANDING JOINT TO 10,525'MD -5'FROM DESIRED TD STAGE PUMP UP FROM 115 GPM,700 PSI TO 424 GPM,1,000 PSI Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 19 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 21:00 0.50 CASING P INT1 REMOVE FRANKS FILL UP TOOL AND INSTALL CIRCULATING SWEDGE WITH CEMENT HOSE -IN ORDER TO HAVE ENOUGH ROOM TO CIRCULATE THE LAST 5'OF THE LANDING JOINT DOWN. 21:00 - 23:30 2.50 CASING P INT1 STAGE PUMP UP TO 254 GPM @ 450 PSI, LAND CASING IN HANGER STAGE PUMP UP TO 424 GPM,860 PSI -FINAL CIRCULATING PRESSURE-800 PSI CIRCULATE SURFACE TO SURFACE TO CONDITION MUD FOR CEMENT JOB. 23:30 - 00:00 0.50 CASING P INT1 INSTALL CEMENT HEAD. 8/12/2010 00:00 - 00:30 0.50 CEMT P INT1 RU CEMENT HEAD&LINES 00:30 - 01:00 0.50 CEMT P INT1 CIRCULATE -7 BPM,480 PSI PRE-JOB SAFETY MEETING WITH CEMENTERS / 01:00 - 03:15 2.25 CEMT P INT1 CEMENT 9-5/8"CASING WITHOUT ✓ /'IAl RECIPROCATION AS FOLLOWS: v 01:07PUMP 5 BBL OF 11.2 PPG MUDPUSH AT Cs 1. 5 BPM 01:12TEST LINES TO 4,000 PSI—GOOD 01:15PUMP 45 BBLS 11.2 PPG MUDPUSH AT 6.5 BPM 01:23START MIXING 11.0 PPG CEMENT 01:25DROP BOTTOM PLUG 01:26PUMP 443 BBL 11.0 PPG LEAD CEMENT AWAY AT5-6.5BPM -11.0 PPG LITECRETE 2:45START MIXING 15.8 PPG CEMENT 2:47PUMP 80 BBL 15.8 PPG TAIL CEMENT AWAY AT 5 BPM -15.8 PPG CLASS G WITH SILICA 3:09STOP PUMPING CEMENT 3:12DROP TOP PLUG 3:14PUMP 10 BBLS FRESH WATER WITH CEMENT TRUCK Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 20 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:15 - 05:30 2.25 CEMT P INT1 3:18BEGIN DISPLACEMENT WITH RIG PUMPS -DISPLACE WITH LSND MUD -550 BBLS AT 7.0 BPM 3:19SPEED UP PUMPS TO CATCH UP TO CEMENT 11 BPM,600 PSI 3:39CATCH UP TO CEMENT AT 293 BBLS INTO DISPLACEMENT RESUME DISPLACING AT 7 BPM,748 PSI 4:15STAGE PUMPS DOWN TO 5 BPM AT 550 BBLS 4:50STAGE PUMPS DOWN TO 3.5 BPM AT 725 BBLS 5:01 STAGE PUMPS DOWN TO 2.0 BPM AT 766 BBLS -800 PSI FINAL PRESSURE AT 2.0 BPM BEFORE BUMPING 5:10OBSERVED PRESSURE SPIKE AS BTM PLUG SEATED -ANTICIPATED PLUG BUMP AT 7,691 STROKES -SAW PLUG BUMP AT 7,768 STROKES,96% EFF ON PUMPS 5:12SHUT DOWN DISPLACEMENT AT 7,799 STROKES(787.7 BBL DISPLACED) HELD 2,000 PSI FOR 10 MINUTES BLEED OFF PRESSURE AND CHECK FLOATS -FLOATS HOLDING FULL RETURNS THROUGHOUT JOB . M IN P -_ : •.: _ 08/12/2010 CEMENT JOB VOLUME: 443 BBLS 11.0 PPG LITECRETE LEAD;1,354 SACKS AT 1.84 CUFT/SK 80 BBLS 15.8 PPG CLASS G TAIL;294 SACKS AT 1.53 CUFT/SK 05:30 - 07:00 1.50 CEMT P INT1 •- - - -250 PSI LOW FOR 5 MIN/3,500 PSI HIGH FOR 30 MIN -TEST LOST 0 PSI IN THE FIRST 15 MIN,0 PSI IN THE 2ND 15 MIN FOR A TOTAL OF 0 PSI -TOOK 9 BBLS TO PRESSURE UP,9BBLS RETURNED AS BLED DOWN 07:00 - 07:30 0.50 CEMT P INT1 TEST INJECTIVITY INTO THE OA -FORMATION BROKE DOWN @ 650 PSI FINAL INJECTION RATE=600 PSI @ 1 BPM 07:30 - 09:30 2.00 CEMT P INT1 CLEAR FLOOR OF CASING TOOLS 09:30 10:30 1.00 CASING P INT1 MU PACKOFF RUNNING TOOL. INSTALL 9-5/8"PACK OFF. RILDS 10:30 - 13:00 2.50 CASING P INT1 INJECT 160 BBLS MUD DOWN OA -93 GPM,770 PSI. -FINAL CIRCULATING PRESSURE AT 140 GPM,660 PSI 13:00 - 14:00 1.00 CASING P INT1 TEST 13.375 X 9.625 PACK OFF -250 LOW FOR 5 MIN AND 5,000 HIGH FOR 30 MIN Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 21 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 17:30 3.50 CASING P INT1 CHANGE UPPER AND LOWER RAMS TO 3-1/2" X 6" 17:30 - 19:30 2.00 BOPSUR P INT1 RU TO TEST BOP 19:30 - 23:00 3.50 BOPSUR N INT1 TEST ANNULAR PREVENTOR -250 LOW,3,500 HIGH,5 MIN EACH TEST. CHOKE MANIFOLD AND RELATED VALVES -250 LOW,3,500 HIGH,5 MIN EACH TEST. ►J1 Oe WITNESS OF TEST WAIVED BY AOGCC REP JOHN CRISP 23:00 - 00:00 1.00 BOPSUR P INT1 SUSPEND BOPE TEST WHILE LITTLE RED FREEZE PROTECTS OA WITH 160 BBLS CRUDE OIL. INITIAL CIRCUALTING PRESSURE AT 84 GPM, 650 PSI. FINAL CIRCUALTING PRESSURE AT 122 GPM, 940 PSI. BLEED OA TO 0 PSI AFTER DONE PUMPING. -36.25 BBLS RETURNED 8/13/2010 00:00 - 00:30 0.50 BOPSUB P INT1 LITTLE RED FREEZE PROTECTS OA WITH 160 BBLS CRUDE OIL. INITIAL CIRCUALTING PRESSURE AT 84 GPM, 650 PSI. FINAL CIRCUALTING PRESSURE AT 122 GPM, 940 PSI. BLEED OA TO 0 PSI AFTER DONE PUMPING. -36.25 BBLS RETURNED 00:30 - 04:00 3.50 BOPSUR N SFAL INT1 TROUBLESHOOT UPPER RAMS -CHANGED SEALS -ATTEMPT TO TEST 3-1/2"X 6"RAMS WITH NO SUCCESS 04:00 - 06:00 2.00 BOPSUR N SFAL INT1 CHANGEOUT 3-1/2"X 6"RAMS -CHANGED RAM BLOCKS TO 2-7/8"X 5" 06:00 - 13:00 7.00 BOPSUR P INT1 TEST BOPE -3,500 PSI HIGH,250 PSI LOW,5 MIN EACH -UPPER RAMS(2-7/8"X 5")WITH 4"TEST JOINT -LOWER RAMS(3-1/2"X 6")WITH 5-1/2"TEST JOINT -BLIND SHEAR RAMS TEST WITNESSED BY BP WSL JOEY gte LEBLANC&ZACH SAYERS, DOYON TP NICK tOk- MARMON&TOM SHONES. AOGCC WITNESS WAIVED BY JOHN CRISP 13:00 - 13:30 0.50 BOPSUR P INT1 RD TEST EQUIPMENT 13:30 - 16:00 2.50 BOPSUR P INT1 CHANGE OUT SAVER SUB&MANUAL IBOP ON TOP DRIVE. 16:00 - 17:00 1.00 BOPSUR P INT1 CONT TESTING BOP'S TEST SUPER CHOKE TO 1,000 PSI FOR 5 MIN TEST BOPE -3,500 PSI HIGH,250 PSI LOW,5 MIN EACH -UPPER RAMS(2-7/8"X 5")WITH 5"TEST JOINT -MANUAL IBOP ON TOP DRIVE -VALVE 3 17:00 - 17:30 0.50 BOPSUR P INT1 RD TEST EQUIP,BLOW DOWN CHOKE&KILL LINE 17:30 - 18:00 0.50 BOPSUR P INT1 PULL TEST PLUG INSTALL WEAR RING Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 22 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date. 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:00 - 18:30 0.50 BOPSUR P INT1 INSTALL MOUSE HOLE CLEAR FLOOR OF ALL TOOLS NOT NEEDED FOR UPCOMING OPERATIONS 18:30 - 19:00 0.50 BOPSUR P INT1 INSTALL SHORT BAILS AND 5"ELEVATORS 19:00 - 19:30 0.50 BOPSUR P INT1 PU AND POSITION GEO SKID 19:30 - 22:30 3.00 BOPSUR P INT1 PU BHA TO RIG FLOOR, BIT,MTR,FLT,STAB,DM,XO,DGR,EWR, HCIM,PILSAR,3-FLEX, -COLLARS,2-HWDP,JARS,3-HWDP PULSE TEST MWD 22:30 - 00:00 1.50 BOPSUR P INT1 PU 4'DP FROM PIPESHED,AND XO'S RIH FROM DERRICK WITH 5"DP FROM 547' TO 1,490'MD 8/14/2010 00:00 - 02:00 2.00 DRILL P INT1 RIH WITH 5"DP FROM 1,490'TO 4,323'MD -.FILL PIPE EVERY 20 STANDS 02:00 - 03:45 1.75 DRILL P INT1 CUT&SLIP DRILL LINE SERVICE TOP DRIVE 03:45 - 07:00 3.25 DRILL P INT1 RIH WITH 5"DP FROM 4,323'TO 10,170'MD -FILL PIPE EVERY 20 STANDS 07:00 - 08:00 1.00 DRILL -P INT1 WASH TO BOTTOM FROM 10,170'TO 10,455' -250 GPM,750 PSI 30 RPM,20K TQ 08:00 - 09:30 1.50 DRILL P INT1 -DRILL OUT FLOAT COLLAR&CEMENT TO 10,520' -PUW-290K;SOW-165K;ROT-215K - 450 GPM,1,970 PSI - 50 RPM,TQ ON-27K;WOB-15K 09:30 - 11:30 2.00 DRILL P INT1 PRE-JOB SAFETY MEETING DISPLACE 11.2 PPG LSND MUD IN HOLE TO 8.7 PPG POWER VISC. CIRCULATE 80 BBLS H2O FROM VAC TRUCK,40 BBL HIGH VISC LUBE SPACER CHASED WITH 740 BBLS 8.7 PPG POWER VIS MUD. -ROTATE AND RECIPROCATE - 50 RPM,23K TQ;FINAL TQ-9.5K - 14 BPM, ICP=, PSI;FCP=2,140 PSI 11:30 - 12:00 0.50 DRILL P INT1 OBTAIN PARAMETERS -PUW-250K;SOW-195K;ROT-220K - 550 GPM,1,850 PSI - 60 RPM,TQ-10K 12:00 - 12:30 0.50 DRILL P INT1 CLEAN PITS#1 &2 TAKE ON NEW MUD 12:30 - 14:00 1.50 DRILL P INT1 DRILL FROM 10,525'TO 10,560'MD 14:00 - 15:00 1.00 DRILL P INT1 CBU TO BALANCE MUD WT 15:00 - 16:00 1.00 DRILL P INT1 RACK BACK 1 STD 5"DP MOUSE HOLE 1 JT 5"DP t PERFORM FIT -TOTAL STROKES-33 -APPLIED SURFACfPRESSURE- 1,100 PSI / -EMW-11.1 PPG +/ -PUMPED 3 BBLS,3 BBLS RETURNED RD EQUIPMENT,BLOW DOWN LINES,PU 1 JT 5"DP,1 STD 5"DP Printed 12/17/2010 2:20:19PM North America-ALASKA- BP Page 23 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) 4. Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations 5 (hr) (ft) 16:00 - 23:30 7.50 DRILL P PROD1 DRILL FROM 10,560'TO 10,780'MD 0 -PUW-255K;SOW-197K;ROT WT- 225K;WOB=30 -80 RPM,TORQ ON-9K,TORQ OFF-7K -600 GPM;1,980 PSI ON,1,760-PSI OFF, ADT-5.25 HRS;ART-3.28 HRS;AST-1.97 HRS 23:30 - 00:00 0.50 DRILL P - PROD1 CBU -588 GPM,1,760 PSI 8/15/2010 00:00 - 00:45 0.75 DRILL P ■ PROD1 CBU -600 GPM,2,050 PSI -RECIPROCATE 00:45 - 01:00 0.25 DRILL P PROD1 FLOW CHECK -STATIC 01:00 - 01:30 0.50 DRILL P ® PROD1 POOH TO SHOE FROM 10,780'TO 10,454'MD -PUMP OUT OF HOLE 01:30 - 01:45 0.25 DRILL P ® PROD1 FLOW CHECK -STATIC 01:45 - 02:30 0.75 DRILL P - PROD1 POOH FROM 10,530'TO 9,510'MD -ON ELEVATORS MONITORING FLUID LEVEL 02:30 - 03:00 0.50 DRILL P PROD1 CIRCULATE DRY JOB 03:00 - 08:30 5.50 DRILL P PROD1 POOH FROM 9,595'TO 547'MD -ON ELEVATORS SIMOPS: UN-ANNOUNCED WELL CONTROL DRILL AND AAR 08:30 - 09:30 1.00 DRILL P _ PROD1 CHANGE OUT ELEVATORS LD 5"HEAVY WT,JARS,AND FLEX DC'S 09:30 - 10:00 0.50 DRILL'- P PROD1 DOWNLOAD MWD 10:00 - 11:00 1.00 DRILL P ` PROD1 LD MWD,DM,STAB, FLT SUB,MOTOR,&BIT BIT GRADING:7-7-BT-A-0-1-SD-TD 11:00 - 11:30 0.50 DRILL P -_ PROD1 CLEAR RIG FLOOR OF TOOLS NOT NEEDED FOR UPCOMING OPERATIONS 11:30 - 13:00 1.50 DRILL P PROD1 PU BHA COMPONENTS TO RIG FLOOR 13:00 - 18:00 5.00 DRILL P PROD1 PRE-JOB SAFETY MEETING MU BHA,BIT,MTR,STAB,SLIM PHASE, DGR, ALD,CTN, PWD,TM,UPLOAD MWD,FLT, BALL CATCHER,1/FLEX COLLAR, PULSE TEST MWD, PJSM ON NUKES,INSTALL NUKES MU 2 FLEX COLLARS,XO 18:00 - 00:00 6.00 DRILL P PROD1 PU 4"HWDP,JARS,4"DP 1X1 FROM PIPESHED(111 JTS TOTAL) TEST DOWNLINK TO MAKE SURE TOOL WAS READING RIH W/5"DP TO 7,691'MD -FILL PIPE EVERY 20 STANDS 8/16/2010 00:00 - 00:30 0.50 DRILL P PROD1 LUBRICATE AND INSPECT TOP DRIVE 00:30 - 02:30 2.00 DRILL P -_ PROD1 RIH W/5"DP FROM 7,691'TO 10,530'MD -FILL PIPE EVERY 20 STANDS 02:30 - 03:30 1.00 DRILL P -_ PROD1 OBTAIN SLOW PUMP RATES OBTAIN ECD BASELINE 03:30 - 04:00 0.50 DRILL P PROD1 TAKE SURVEYS TO TIE IN Printed 12/17/2010 2:20:19PM North America -ALASKA- BP, Page 24 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr (ft) 04:00 - 10:00 6.00 DRILL P PROD1 DRILL 6-1/8"HOLE FROM 10,780'TO 10,872' -PUW 235K,SOW 185K,ROT 210K -275 GPM,1,900 PSI ON,1,540 PSI OFF -10-20K WOB -TQ OFF- 6K -MW IN: 8.8 PPG,MW OUT:8.8 PPG -CALC CLEAN HOLE ECD:9.24 PPGE, ACTUAL:9.23 PPGE -AST-2.88 HRS,ART-0 HRS,ADT-2.88 HRS 10:00 - 11:30 1.50 DRILL P PROD1 POOH TO 10,825' CIRCULATE STEEL LUBE SWEEP -280 GPM,1,690 PSI -ROTATE AND RECIPROCATE -50 RPM 11:30 - 18:00 6.50 DRILL P PROD1 DRILL FROM 10,866'TO 10,902'MD -PUW 235K,SOW 185K,ROT 210K -275 GPM,1,780 PSI ON,1,580 PSI OFF -10-15K WOB TQ OFF- 6K -MW IN:8.8 PPG,MW OUT:8.8 PPG -CALC CLEAN HOLE ECD:9.24 PPGE, ACTUAL:9.23 PPGE CIRCULATE 30 BBL ALPINE BEAD SWEEP -1/2 OUT INTO OPEN HOLE -TURN PUMPS OFF -ROTATE DRILL STRING @ 20 RPM AND WORK PIPE ABLE TO SLIDE FOR 8'BEFORE HANGING UP STRING IN GLASS BEADS AND INREASE STEEL LUBE TO 0.5% -UNABLE TO SLIDE -DESCISION MADE TO POOH FOR INSERT BIT AST-1.15 HRS,ADT-1.15 HRS 18:00 - 00:00 6.00 DRILL N PROD1 POOH FROM 10,902'TO 9,481'MD -ON ELAVATORS If CIRCULATE DRY JOB BLOW DOWN TOP DRIVE POOH FROM 9,481'TO 3,912'MD -ON ELAVATORS -5"DP CHANGE HANDLING EQUIPMENT TO 4" CIRCULATE DRY JOB POOH FROM 3,912'TO 3,439'MD 8/17/2010 00:00 - 01:30 1.50 DRILL N DPRB _ PROD1 POOH FROM 3,439'TO 405'MD -ON ELEVATORS 01:30 - 02:00 0.50 DRILL N DPRB _ PROD1 STAND BACK HEAVY WEIGHT AND FLEX DRILL COLLARS 02:00 - 03:00 1.00 DRILL N DPRB _ PROD1 LD AND SECURE NUCLEAR SOURCES DOWNLOAD MWD 03:00 - 05:00 2.00 DRILL N DPRB - PROD1 LD BHA BIT GRADING: 1-1-CT-S-X-0-NO-PR 05:00 - 05:15 0.25 DRILL N DPRB _ PROD1 AAR REVEIW ON LD BHA PRE-JOB SAFETY MEETING ON PU BHA Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 25 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: 'X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:15 - 06:00 0.75 DRILL N DPRB PROD1 MU BHA -DM,SLIM PHASE,DGR,&TM.M/U FLT SUB. BALL CATCHER,&WELL COMMANDER CV. 06:00 - 06:30 0.50 DRILL N DPRB PROD1 UPLOAD MWD 06:30 - 07:00 0.50 DRILL N DPRB PROD1 MU FLEX DC'S,4"HWT,&JARS. SHALLOW TEST MWD 07:00 - 09:00 2.00 DRILL N DPRB PROD1 -RIM W/4"DP TO 3,864' -FILL PIPE EVERY 20 STANDS 09:00 - 12:00 3.00 DRILL N DPRB PROD1 RIH WITH 5"DP FROM 3,864'TO 9,524'MD -FILL PIPE EVERY 20 STANDS 12:00 - 14:00 2.00 DRILL N DPRB PROD1 PRE-JOB SAFETY MEETING CUT-N-SLIP DRILLING LINE SERVICE AND INSPECT TOP DRIVE/BLOCKS 14:00 - 14:30 0.50 DRILL N DPRB PROD1 RIH WITH 5"DP FROM 9,524'TO 10,470'MD 14:30 - 15:00 0.50 DRILL N DPRB PROD1 FILL PIPE GET SLOW PUMP RATES LINE UP TOOL FACE STRAIGHT UP TO ENTER OPEN HOLE CIRCULATE 255 GPM,1,100 PSI 15:00 - 15:30 0.50 DRILL N DPRB PROD1 RIH WITH 5"DP FROM 10,470'TO 10,844'MD 15:30 - 00:00 8.50 DRILL P PROD1 WASH DOWN FROM 10,844'TO 10,902'MD DRILL FROM 10,902'TO 11,056'MD(9,085' ND) -PUW 239K,SOW 185K -285 GPM,1,380 PSI ON,1,290 PSI OFF -25K WOB -MW IN:8.8 PPG,MW OUT:8.8 PPG AST-4.90 HRS,ADT-4.90 HRS 8/18/2010 00:00 - 06:30 6.50 DRILL P PROD1 DRILL FROM 11,056'TO 11,220'MD -PUW 235K,SOW 187K -285 GPM,1,380 PSI ON,1,290 PSI OFF -25K WOB -MW IN:8.8 PPG,MW OUT:8.8 PPG AST-4.87 HRS,ADT-4.87 HRS 06:30 - 07:45 1.25 DRILL P PROD1 CBU -275 GPM,1,320 PSI 07:45 - 08:00 0.25 DRILL P PROD1 FLOW CHECK -STATIC 08:00 - 09:00 1.00 DRILL P PROD1 POOH FROM 11,220'TO 10,470'MD -PUMP OUT AT DRILLING RATE(275 GPM) -MW IN-8.8 PPG,MW OUT-8.8 PPG 09:00 - 09:15 0.25 DRILL P PROD1 FLOW CHECK -STATIC 09:15 09:30 0.25 DRILL P PROD1 CIRCULATE DRY JOB. 09:30 - 16:00 6.50 DRILL P PROD1 POOH FROM 10,470'TO 3,864'MD CHANGE OUT 5"HANDLING EQUIPMENT TO 4" POOH WITH 4"DP F ROM 3,864'TO 174' - MAD PASS FROM 2,860'TO 2,600' Printed 12/17/2010 2:20.19PM North America -ALASKA- BP Page 26 of 37 Operation Summary Report Common Well Name:W-19 1AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 18:00 2.00 DRILL P PROD1 LD BHA -RACK BACK FLEX COLLARS, LD COMMANDER, BALL CATCHER, FLOAT SUB, DOWN LOAD MWD,TM,DGR,SLIM PHASE, DM, MTR, BIT -6-1/8"MX-R18DX BIT GRADING: 2-5-BT-G-E-I-NO-BHA 18:00 - 22:00 4.00 DRILL P PROD1 PRE-JOB SAFETY MEETING MU BHA -BIT,MOTOR, FLT SUB,STAB, DM,SLIM PHASE,ALD,CTN, PWD,TM,COMMANDER UPLOAD MWD PULSE TEST MWD -200 GPM,650 PSI,254 GPM,1,000 PSI PRE-JOB SAFETY MEETING ON NUCLEAR SOURCES LOAD NUCLEAR SOURCES PU 1 STD OF FLEX COLLARS 22:00 - 00:00 2.00 DRILL P PROD1 RIH WITH 4"HWDP-JARS RIH WITH 4"DP FROM 409'TO 3,916'MD -FILLING PIPE EVERY 20 STANDS PUXOAND1 STD 5"DP FILL PIPE 8/19/2010 00:00 - 00:30 0.50 DRILL P - PROD1 LUBRICATE AND INPECT TOP DRIVE INSPECT DERRICK 00:30 - 04:30 4.00 DRILL P PROD1 RIH FROM 3,916'TO 10,800'MD -FILL PIPE EVERY 20 STANDS 04:30 - 06:30 2.00 DRILL P PROD1 SURVEY -TAKE 4 WAY CHECK SHOTS @ 10,833', 10,895',11,204' 06:30 - 08:00 1.50 DRILL P PROD1 WASH TO BOTTOM FROM 10,988'TO 11,220' MD -PUW-237K;SOW-180K - 280 GPM,1,670 PSI 08:00 - 12:00 4.00 DRILL P PROD1 DRILL FROM 11,220'TO 11,300'MD _ -PUW 240K;SOW 180K;ROT 205K -275 GPM,1,890 PSI ON,1,560 PSI OFF -20K WOB -20 RPM;TQ ON-8K;TQ OFF-6K -MW IN:8.8 PPG,MW OUT:8.8 PPG AST-0.75 HRS,ART-0.9 HRS,ADT-1.65 HRS 12:00 - 22:30 10.50 DRILL P PROD1 DRILL FROM 11,300'TO 11,506'MD -PUW 240K;SOW 180K; ROT 205K -275 GPM,1,710 PSI ON,1,390 PSI OFF -20K WOB -60 RPM;TQ ON-8K;TQ OFF-6K -MW IN:8.8 PPG,MW OUT:8.8 PPG AST-3.51 HRS,ART-1.69 HRS,ADT-5.20 HRS UNABLE TO ACHIEVE DIRECTIONAL OBJECTIVES -DECISION MADE TO POOH TO PU MORE AGGRESSIVE BHA Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 27 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date. X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations hr ft 22:30 - 23:00 0.50 DRILL N DPRB PROD1 CIRCULATE BOTTOMS UP -RECIPRICATE PIPE -250 GPM,1,380 PSI -MW IN:8.8 PPG,MW OUT:8.8 PPG 23:00 - 00:00 1.00 DRILL N PROD1 PUMP OUT OF HOLE FROM 11,506'TO 10,893' ■- -CIRCULATE AT DRILLING RATE(275 GPM, 1,350 PSI 8/20/2010 00:00 - 00:30 0.50 DRILL N DFAL PROD1 PUMP OUT OF HOLE FROM 10,893'TO 10,530'MD -CIRCULATE AT DRILLING RATE(275 GPM, 1,350 PSI) -INTO 9-5/8"CASING SHOE -MW IN-8.8 PPG,MW OUT-8.8 PPG 00:30 - 00:45 0.25 DRILL N DFAL PROD1 FLOW CHECK WELL -STATIC 00:45 - 04:30 3.75 DRILL N DFAL PROD1 POOH WITH 5"DP FROM 10,530 TO 10,048'MD -ON ELEVATORS FLOW CHECK -STATIC POOH WITH 5"DP FROM 10,048 TO 3,914'MD 04:30 - 05:00 0.50 DRILL N DFAL PROD1 CHANGE OUT 5"LIFTING EQUIPMENT TO 4" 05:00 - 07:30 2.50 DRILL N DFAL PROD1 POOH W/4"DP FROM 3,814'TO 409' 07:30 - 09:30 2.00 DRILL N DFAL PROD1 CHANGE OUT JARS. RACK BACK HEAVY WEIGHT DP,JARS,& FLEX DRILL COLLARS 09:30 - 10:00 0.50 DRILL N DFAL PROD1 PJSM,REMOVE NUKES,DOWN LOAD MWD 10:00 - 10:30 0.50 DRILL N DFAL PROD1 RACK BACK MWD TOOLS IN THE DERRICK, BREAK BIT,LD MOTOR BIT GRADING:0-0-ER-N-X-I-NO-FM 10:30 - 11:00 0.50 DRILL N DFAL _ PROD1 SERVICE AND INSPECT TOP DRIVE,BLOCKS, AND DRAWWORKS 11:00 - 12:00 1.00 DRILL N DFAL PROD1 PU BIT AND MOTOR DIAL 4-3/4"MOTOR BACK TO 1.83 DEG MU BIT,LD STAB,SERVICE FLOAT,PU MWD TOOLS FROM DERRICK 12:00 - 13:00 1.00 DRILL N DFAL PROD1 PRE-JOB SAFETY MEETING LOAD NUKES, UPLOAD MWD RIH WITH 4-3/4 FLEX DRILL COLLARS 13:00 - 18:30 5.50 DRILL N DFAL PROD1 RIH WITH 4"HWDP/JARS TO 391' CHANGE OUT HANDLING TOOLS RIH WITH 4"DP TO 3,898' CHANGE OUT HANDLING TOOLS RIH WITH 5"DP FROM 3,898'TO 10,504' -FILL PIPE EVERY 20 STANDS. 18:30 - 20:00 1.50 DRILL N DFAL PROD1 PRE-JOB SAFETY MEETING CUT-N-SLIP DRLG LINE SERVICE AND INSPECT TOP DRIVE,BLOCKS, AND CROWN 20:00 - 20:30 0.50 DRILL N DFAL PROD1 RIH FROM 10,504'TO 11,188 -TAKE SURVEYS AT: 10,504',10,817',10,879', 11,188' - 90 DEG QUAD SURVEYS 20:30 - 23:30 3.00 DRILL N DFAL _ PROD1 CONTINUE WITH SURVEYS RIH TO 11,506'MD Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 28 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 00:00 0.50 DRILL P PROD1 DRILL FROM 11,506'TO 11,521'MD(9,055' TVD) -PUW 240K;SOW 180K;ROT 205K -275 GPM,1,390 PSI ON,1,320 PSI OFF -12K WOB -MW IN-8.8 PPG,MW OUT-8.8 PPG, ECD- 9.2 PPGE AST-0.55 HRS,ART-0.0 HRS,ADT-0.55 HRS 8/21/2010 00:00 - 12:00 12.00 DRILL P PROD1 DRILL FROM 11,521'TO 11,825'MD(9,023' TVD) -PUW 235K;SOW 177K;ROT 205K -300 GPM,1,650 PSI ON,1,540 PSI OFF -40 RPM;7K TQ OFF;9K TQ ON -20K WOB -8.8 PPG MW IN;8.8 PPG MW OUT -CALC CLEAN HOLE ECD:9.4 PPGE,ACTUAL: 9.4 PPGE AST-3.45 HRS,ART-3.50 HRS,ADT-7.04 HRS HELD UN-ANNOUNCED KICK DRILL PERFORMED AAR POST DRILL 12:00 - 00:00 12.00 DRILL P PROD1 DRILL FROM 11,825'TO 12,248'MD -PUW 237K;SOW 175K;ROT 205K -280 GPM,1,615 PSI ON,1,550 PSI OFF -40 RPM;7K TQ OFF;9K TQ ON -23K WOB -8.9 PPG MW IN;8.9 PPG MW OUT -CALC CLEAN HOLE ECD:9.45 PPGE, ACTUAL:9.47 PPGE AST-2.30 HRS,ART-4.48 HRS,ADT-6.78 HRS -STARTED TAKING LOSSES AT 12,210'MD -TOOK INITIAL LOSS THAN STEADY 60 BBL/ HR LOSSES 8/22/2010 00:00 - 01:00 1.00 DRILL P PROD1 CIRCULATE 32 BBL STAGE 1 LCM PILL -32 BBL PILL THROUGH BHA SPOT PILL ON BOTTOM AT 12,248'MD 01:00 - 02:00 1.00 DRILL P PROD1 POOH FROM 12,248'TO 11,731'MD -8.9 PPG MW IN;8.9 PPG MW OUT FLOW CHECK -WELL SLOWLY LOOSING FLUID 02:00 - 02:30 0.50 DRILL P PROD1 CIRCULATE ABOVE LOSS ZONE -280 GPM,1620 PSI ROTATE AND RECIPRICATE -40 RPM,6K TQ OFF -LOSS RATE DECREASED TO 15-20 BBUHR 02:30 - 03:00 0.50 DRILL P PROD1 RIH FROM 11,731'TO 12,248'MD Printed 12/17/2010 2:20:19PM North America-ALASKA- BP Page 29 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 06:30 3.50 DRILL P PROD1 DRILL FROM 12,248'TO 12,400'MD -PUW 237K;SOW 175K;ROT 205K -280 GPM,1,700 PSI ON,1,550 PSI OFF -40 RPM;7K TQ OFF;13K TQ ON -25K WOB -8.9 PPG MW IN;8.9 PPG MW OUT -CALC CLEAN HOLE ECD:9.46 PPGE, ACTUAL:9.41 PPGE -LOSS RATE AT 30 BBL/HR LOSSES 06:30 - 07:00 0.50 DRILL P PROD1 CIRCULATE 20 BBLS STAGE 1 LOSS PILL SPOT ON BOTTOM @ 12,400' -WELL STILL TAKING FLUID 07:00 - 12:00 5.00 DRILL P PROD1 DRILL FROM 12,400'TO 12,487'MD(8,968' TVD) -PUW 238K;SOW 174K;ROT 202K -290 GPM,1,810 PSI ON,1,650 PSI OFF -40 RPM;7K TQ OFF;10K TQ ON -35K WOB -8.9 PPG MW IN;8.9 PPG MW OUT -CALC CLEAN HOLE ECD:9.45 PPGE, ACTUAL:9.41 PPGE LOSS RATE AT 30-50 BBL/HR LOSSES AST-7.06 ADT-5.58 ART-4.91 BIT HOURS=19.95 JAR HOURS=19.95 12 HR TOUR TOTAL LOSS 346 BBLS 12:00 - 15:30 3.50 DRILL P PROD1 DRILL FROM 12,487'TO 12,503'MD -PUW 247K;SOW 174K; ROT 202K -290 GPM,1,810 PSI ON,1,580 PSI OFF -40 RPM;7K TQ OFF;10K TQ ON -40K WOB -8.7 PPG MW IN;8.7 PPG MW OUT -LOSS RATE AT 60-100BBL/HR 15:30 - 16:30 1.00 DRILL P PROD1 CIRCULATE BEADS HALF WAY OUT THE BIT SHUT PUMPS OFF ROTATE 20 RPM RECIPROCATE 15' ROTATE 20 RPM RECIPROCATE 95' 16:30 - 19:30 3.00 DRILL P PROD1 _pRILL FROM 12.503'TO 12518'Mf) 19:30 - 20:00 0.50 DRILL C PROD1 DESCISION MADE TO OPEN HOLE SIDETRACK POOH FROM 12,516'TO 12,205'MD -8.7 PPG MW IN;8.7 PPG MW OUT 20:00 - 00:00 4.00 DRILL C PROD1 DIG TROUGH FROM 12,218'TO 12,238'MD START TIME DRILLING @ 23:30 -DRILLING AT—1 FT/HR AST-0.54 HRS;ART-0.59 HRS;ADT-1.13 HRS -LOSS RATE AT 60 BBL/HR LOSES FOR TOUR 560 BBLS Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 30 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/23/2010 00:00 - 06:00 6.00 DRILL C PROD1 OPEN HOLE SIDETRACK FROM 12,218'TO 12,240'MD -TIME DRILL AT—1 FT/HR -LOSS RATE AT 15 BBL/HR AST-10.98 HRS;ART-0 HRS;ADT-10.98 HRS 06:00 - 12:00 6.00 DRILL C PROD1 OPEN HOLE SIDETRACK FROM 12,240'TO 12,252'MD -TIME DRILL AT—1-2 FT/HR -WOB-1-5K -280 GPM,1,630 PSI 12 HR TOUR LOSS 220 BBLS 12:00 - 19:30 7.50 DRILL C PROD1 TIME DRILL FROM 12,252'TO 12,270'MD (8,966'TVD) -PUW-240K;SOW-177K;WOB-2-10K - 280 GPM,1,430 PSI AST-5.32 HRS;ART-0 HRS;ADT-5.32 HRS -8.4+PPG MW IN;8.4+PPG MW OUT CHECK FOR LEDGE -NO POSSITIVE SIGN OF SIDETRACK -LOSS RATE AT 60 BBL/HR 19:30 - 00:00 4.50 DRILL C PROD1 OBTAIN SPR'S DOWN LINK MWD TOOLS MAD PASS FROM 12,236'TO 11,541'MD -ROT WT-205K -300 FPH,40 RPM,8 TQ OFF -290 GPM,1,450 PSI 12 HR TOUR LOSS 428 BBLS;TOTAL LOSS TO WELL 1,633 BBLS 8/24/2010 00:00 - 06:00 6.00 DRILL C PROD1 MAD PASS FROM 11,541'TO 10,504'MD -ROT WT-205K -300 FPH,40 RPM,8 TQ OFF -290 GPM,1,300 PSI 06:00 - 08:30 2.50 DRILL C PROD1 DROP WELL COMMANDER OPENING BALL AND CIRCULATE -WELL COMMANDER DID NOT FUNCTION CONTINUE CIRCULATING ONE BOTTOMS UP -280 GPM,1,340 PSI -40 RPM,5K TQ -RECIPROCATE FULL STAND WHILE CIRCULATING 08:30 - 09:00 0.50 DRILL C PROD1 POOH FROM 10,504'TO 9,561'MD -MW IN AND OUT 8.5 PPG FLOW CHECK WELL -WELL STATIC PUMP 30 BBL DRY JOB BLOW DOWN TOP DRIVE 09:00 - 14:00 5.00 DRILL C PROD1 POOH FROM 9,561'TO 3,895'MD -NIGHT CREW HELD KICK WHILE TRIPPING DRILL WITH 70 SEC RESPONSE TIME CHANGE HANDLING EQUIPMENT FROM 5"TO 4" POOH FROM 3,895'TO 208' Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 31 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:00 - 17:30 3.50 DRILL C PROD1 REMOVE SOURCES FROM BHA DOWNLOAD MWD LAY DOWN WELL COMMANDER -OPENING BALL IS IN CIRCULATING SUB LAY DOWN BHA BIT DULL GRADE:6-8-LT-G-E-3-SD-PR 17:30 - 18:00 0.50 WHSUR C PROD1 "PULL WEAR BUSHING AND INSPECT RUN AND INSTALL WEAR BUSHING 18:00 - 20:30 2.50 DRILL C PROD1 PICK UP BHA#8 AS FOLLOWS: -6-1/8"HUGHES MXL-1X INSERT BIT WITH 3 X M1 14/32 NOZZLES -5"MUD MOTOR WITH ABI,1.76 DEGREE BEND -4-3/4"FLOAT SUB -4-3/4"MWD SUITE(DIR,GR, RES, DEN, NEU, PWD) -4-3/4"WELL COMMANDER CIRCULATING VALVE 20:30 - 22:00 1.50 DRILL C PROD1 UPLOAD MWD DATA PULSE TEST MWD LOAD SOURCES INTO MWD TOOL 22:00 - 23:00 1.00 DRILL C PROD1 CONTINUE TO PICK UP BHA#8 AS FOLLOWS: -4-3/4"FLEX COLLAR X3 -CROSSOVER SUB 4"HWDP X3 -4-3/4"DAILEY DRILLING JAR -4"HWDPX2 TOTAL BHA LENGTH:391.84' 23:00 - 00:00 1.00 DRILL C PROD1 RIH FROM 392'TO 2,300'MD ON 4"DRILLPIPE -FILL PIPE EVERY 20 STANDS LOSSES FOR DAY: 191 LOSSES FOR WELL: 1824 8/25/2010 00:00 - 05:00 5.00 DRILL C PROD1 RIH FROM 2,300'TO 10,890'MD -FILL PIPE EVERY 20 STANDS KICK WHILE TRIPPING DRILL;RESPONSE TIME 55 SEC 05:00 - 08:00 3.00 DRILL C PROD1 STOP FOR SURVEY CORRELATIONS AT 10,890',10,919',11,865',11,896',11,920'AND 11,958'MD 08:00 - 12:00 4.00 DRILL C PROD1 DIG TROUGH AT 11,955' -DRILLING AT—1 FT/HR -PUW 245K,SOW 180K -275 GPM,1,450 PSI AST-3.59 HRS;ART-0.00 HRS;ADT-3.59 HRS 12:00 - 16:00 4.00 DRILL C PROD1 TIME DRILL FROM 11,955'TO 11,967'MD -DRILLING AT—2 FT/HR -5K WOB,WORKING UP TO 10K -275 GPM,1,800 PSI Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 32 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 00:00 8.00 DRILL C PROD1 DRILL FROM 11,967'TO 12,317'MD(8,971' ND) -PUW 240K;SOW 175K;ROT 206K -277 GPM,1,790 PSI ON,1,540 PSI OFF -60 RPM;8K TQ OFF;10K TQ ON -25K WOB -8.5 PPG MW IN;8.5 PPG MW OUT CALC CLEAN HOLE ECD:9.0 PPGE,ACTUAL: 9.1 PPGE AST-5.26 HRS,ART-1.70 HRS,ADT-6.96 HRS ADT FOR LAST 24 HRS: 10.55 HRS HELD UNANNOUNCED KICK WHILE DRILLING DRILL DURING CREW CHANGE CONDUCTED AAR WITH BOTH CREWS 8/26/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 12,317' TO 12,760'MD -PUW 245K;SOW 175K;ROT 209K -270 GPM,1,800 PSI ON,1,460 PSI OFF -60 RPM;10K TQ OFF;13K TQ ON 25K WOB -8.5 PPG MW IN;8.5 PPG MW OUT -CALC CLEAN HOLE ECD:9.0 PPGE,ACTUAL: 9.1 PPGE AST-2.33 HRS,ART-4.43 HRS,ADT-6.76 HRS 12:00 - 00:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 12,760' TO 13,189'MD -PUW 247K;SOW 175K; ROT 209K -275 GPM,1,810 PSI ON 1,500 PSI OFF -60 RPM;8K TQ OFF;12K TQ ON -25K WOB -8.6 PPG MW IN;8.6 PPG MW OUT -CALC CLEAN HOLE ECD:9.2 PPGE,ACTUAL: 9.2 PPGE AST-2.54 HRS,ART-2.65 HRS,ADT-5.19 HRS ADT FOR LAST 24 HRS: 11.95 HRS HELD SPILL DRILL IN CELLAR 8/27/2010 00:00 - 12:00 12.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 13,189' TO 13,490'MD -PUW 250K;SOW 175K; ROT 210K -330 GPM,2,330 PSI ON,1,910 PSI OFF -60 RPM;10K TQ OFF;12K TQ ON -25K WOB -8.5 PPG MW IN;8.5 PPG MW OUT -CALC CLEAN HOLE ECD:9.1 PPGE,ACTUAL: 9.3 PPGE AST-4.60 HRS,ART-1.20 HRS,ADT-5.80 HRS FIRE DRILL IN HOPPER ROOM Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 33 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 15:00 3.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 13,490' TO 13,572'MD -PUW 250K;SOW 175K;ROT 210K -330 GPM,2,330 PSI ON,1,880 PSI OFF -60 RPM;10K TQ OFF;12K TQ ON -25K WOB -8.5 PPG MW IN;8.5 PPG MW OUT -CALC CLEAN HOLE ECD:9.1 PPGE,ACTUAL: 9.2 PPGE AST 1.10 HRS,ART-0.28 HRS,ADT-1.38 HRS 15:00 - 16:00 1.00 DRILL P PROD1 CIRCULATE 2 OPEN HOLE VOLUMES -ROTATE AND RECIPROCATE DRILL STRING -330 GPM,1,900 PSI 16:00 - 17:00 1.00 DRILL P PROD1 POOH FROM TD TO FAULT AT 12,220'MD 17:00 - 17:30 0.50 DRILL P ® PROD1 SPOT LCM PILL AT FAULT -340 GPM,2,000 PSI 17:30 - 19:00 1.50 DRILL P PROD1 POOH TO SHOE AT 10,530'MD 19:00 - 20:30 1.50 DRILL P PROD1 FLOW CHECK WELL -NO FLOW CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE DRILL STRING -330 GPM,1,630 PSI -60 RPM,6K TQ 20:30 - 21:30 1.00 DRILL P PROD1 POOH 2 MORE STANDS TO 10,320'MD MAKE UP STORM PACKER AND SET WITH TOP OF RUNNING TOOL AT 98' CLOSE BLIND/SHEAR RAMS AND TEST STORM PACKER AGAINST RAMS TO 1,000 PSI FOR 5 MINUTES -GOOD TEST 21:30 - 22:00 0.50 WHSUR P PROD1 PULL WEAR RING 22:00 - 23:00 1.00 BOPSUR P PROD1 INSTALL TEST PLUG AND RIG UP TO TEST BOPE SPILL DRILL IN CELLAR 23:00 - 00:00 1.00 BOPSUR P PROD1 PERFORM BOPE TEST PER BP/AOGCC REGULATIONS -TEST ANNULAR WITH 5"TEST JOINT TO 250 PSI LOW,2,500 PSI HIGH -TEST CHOKE MANIFOLD VALVES 1,12,13,14, 2-7/8"X 5"TOP RAMS WITH 5"TEST JOINT, HCR KILL AND IBOP TO 250 PSI LOW,3,500 HIGH -TEST WITNESSED BY DOYON TOURPUSHER HARRY GOCHENAUER AND BP WSL FRANK ROACH.AOGCC REP BOB NOBLE WAIVED WITNESS ADT FOR LAST 24 HRS:7.18 HRS Printed 12/17/2010 2:20:19PM North America-ALASKA- BP Page 34 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/28/2010 00:00 - 08:30 8.50 BOPSUR P PROD1 CONTINUE TO TEST BOPE PER BP/AOGCC REGULATIONS: • -250 LOW,3,500 HIGH,5 MIN EACH TEST -TEST REMAINING CHOKE MANIFOLD VALVES -2-7/8"X 5"VBR WITH 5"TEST JOINT -5"TIW FLOOR VALVE AND DART VALVE -HCR CHOKE VALVE 6aCI -MANUAL CHOKE AND KILL VALVES -3-1/2"X 6"VBR WITH 5"TEST JOINT -4"TIW FLOOR VALVE AND DART VALVE -KOOMEY TEST -BLIND SHEAR RAMS -SUPER CHOKE AND MANUAL CHOKE ON MANIFOLD TO 1,000 PSI -2-7/8"X 5"VBR WITH 2-7/8"TEST JOINT -ANNULAR WITH 2-7/8"TEST JOINT -3-1/2"X 6"VBR WITH 4"TEST JOINT TEST WITNESSED BY DOYON TOOLPUSHERS BOBBY INGRAM AND HARRY GOCHENAUER AND BP WSL BLAIR NEUFELD AND FRANK ROACH.AOGCC REP BOB NOBLE WAIVED WITNESS 08:30 - 09:30 1.00 BOPSUR P PROD1 PULL TEST PLUG AND INSTALL WEAR RING BLOW DOWN CHOKE MANIFOLD,CHOKE, AND KILL LINES 09:30 - 11:00 1.50 DRILL P PROD1 SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE AND BLOCKS AND ADJUST BRAKES 11:00 - 11:30 0.50 DRILL P PROD1 PICK UP STORM PACKER RUNNING TOOL RIH TO 98'AND ENGAGE STORM PACKER LOST 26 BBLS TO FORMATION WHEN PACKER RELEASED 11:30 - 13:30 2.00 DRILL P PROD1 CIRCULATE BOTTOMS UP -185 GPM,720 PSI -PUMP RATE LIMITED DUE TO STORM PACKER IN STRING D1 KICK DRILL 13:30 - 14:00 0.50 DRILL P PROD1 LAY DOWN STORM PACKER 14:00 - 16:00 2.00 DRILL P -_ PROD1 RIH TO 13,425'MD -ENCOUNTER TIGHT SPOT AT 13,425' 16:00 16:30 0.50 DRILL P ■- PROD1 WASH AND REAM TO TD -60 RPM,10-12K TQ -300 GPM,1,600-1,900 PSI 16:30 - 21:30 5.00 DRILL P PROD1 DIRECTIONALLY DRILL AHEAD FROM 13,572' TO 13,584'MD -PUW 250K;SOW 175K; ROT 210K -330 GPM,2,050 PSI ON,1,860 PSI OFF -60 RPM;9K TQ OFF;12K TQ ON -5K WOB -8.5 PPG MW IN;8.5 PPG MW OUT AST-0.93 HRS,ART-0.00 HRS,ADT-0.93 HRS ROP SLOWING SIGNIFICANTLY AND STALLING MOTOR AT 2K WOB -DECISION TO TRIP FOR BIT Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 35 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type. RE-ENTER-ONSHORE(RON) Start Date: 7/21/2010 End Date. X3-00V1Z-C(5,933,206.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:30 - 23:00 1.50 DRILL N DFAL PROD1 POOH 1 STAND AND CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE DRILL STRING -330 GPM,1,880 PSI -60 RPM,8K TQ -RACK BACK ONE STAND EVERY HOUR -MW IN AND OUT:8.5 PPG 23:00 00:00 1.00 DRILL N DFAL PROD1 "FLOW CHECK WELL -NO FLOW POOH FROM TD TO 12,000'MD 8/29/2010 00:00 - 01:00 1.00 DRILL N DFAL PROD1 POOH FROM 12,000'TO 10,780'MD -TD OF 8-1/2"HOLE SECTION 01:00 - 02:00 1.00 DRILL N DFAL PROD1 BACKREAM THROUGH 8-1/2"HOLE FROM 10,780'TO 9-5/8"SHOE AT 10,530'MD -330 GPM,1,630 PSI -60 RPM,7K TQ -PUW 230K,SOW 180K,ROT 205K 02:00 - 03:00 1.00 DRILL N DFAL PROD1 CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE DRILL STRING -330 GPM,1,630 PSI -60 RPM,5K TQ -RACK BACK ONE STAND EVERY 30 MINUTES FLOW CHECK WELL -NO FLOW PUMP DRY JOB -MW IN AND OUT:8.5 PPG 03:00 - 07:00 4.00 DRILL N DFAL PROD1 POOH FROM 10,530'MD TO 3,906'MD.KICK DRILL WHILE TRIPPING. 07:00 - 07:30 0.50 DRILL N DFAL PROD1 CHANGE OUT PIPE HANDLING EQUIP.FROM 5"TO 4" 07:30 - 09:00 1.50 DRILL N DFAL PROD1 CONT.POOH W/FROM 3,906 TO 400'.STAND BACK JARS,HWDP,AND DRILL COLLARS. 09:00 - 09:30 0.50 DRILL N DFAL PROD1 PULL SOURCES 09:30 - 10:30 1.00 DRILL N DFAL _ PROD1 DOWNLOAD MWD.TABLE TOP H2S KICK DRILL. 10:30 - 11:00 0.50 DRILL N DFAL PROD1 BREAK BIT AND LD MOTOR 11:00 - 12:00 1.00 DRILL N DFAL - PROD1 CLEAN RIG FLOOR AND BREAK OUT BIT. 12:00 - 13:30 1.50 DRILL N DFAL PROD1 MU BHA 13:30 - 14:30 1.00 DRILL N DFAL - PROD1 UPLOAD MWD 14:30 - 15:30 1.00 DRILL N DFAL PROD1 SURFACE TEST MWD 15:30 16:00 0.50 DRILL N DFAL PROD1 LOAD SOURCES 16:00 - 16:30 0.50 DRILL N DFAL PROD1 CONT.TO MU BHA 16:30 - 00:00 7.50 DRILL N DFAL PROD1 TIH TO 12,680' 8/30/2010 00:00 - 00:30 0.50 DRILL N DFAL PROD1 RIH FROM 12,680'TO 12,939'MD BEGIN TAKING WEIGHT AT 12,939' MW IN AND OUT:8.5 PPG 00:30 - 03:00 2.50 DRILL N DFAL PROD1 SCREW INTO TOP DRIVE REAM DOWN FROM 12,939'TO 13,584'MD -250 GPM,1,460 PSI -60 RPM,5-10K TQ Printed 12/17/2010 2.20:19PM North America -ALASKA- BP Page 36 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:7/21/2010 End Date: X3-00V1Z-C(5,933,206.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 06:00 3.00 DRILL P PROD1 ESTABLISH TOOLFACE "e ALLY DRILL FROM 13,584'MD TO 13,720' -PUW •OK;SOW 180K; ROT 216K GPM,2,400 PSI ON,2,020 PSI OFF -60 RPM;8K TQ OFF;14K TQ ON -15KWOB -8.6 PPG MW IN;8.6 PPG MW OUT AST-0.25 HRS,ART-1.34 HRS,ADT-1.59 HRS 06:00 - 07:30 1.50 DRILL P PROD1 CIRC AND CONDITION -320 GPM,2040 PSI (� -PUW 260,SOW 180, ROT 216 -RPM 60,TQ 2-6K TD CALLED BY WELL SITE GEOLOGIST AT , 06:20: 13,720'MD 07:30 - 16:30 9.00 DRILL P PROD1 MADD PASS 13,720'-11,950' -320 GPM,2040 PSI INITIAL,1,500 PSI FINAL -60 RPM,5-14K TQ 16:30 - 18:00 1.50 DRILL P - PROD1 PUMP OOH TO CSG SHOE AT 10,530' -MW IN AND OUT 8.6 PPG 18:00 - 19:30 1.50 DRILL P PROD1 CIRC. BTMS. UP -ROTATE AND RECIPROCATE DRILL STRING -331 GPM,1780 PSI -60 RPM,6KTQ -FLOW CHECK -10 BPH STATIC FLUID LOSS TO WELL 19:30 - 21:00 1.50 DRILL P PROD1 SLIP&CUT DRILL LINE,SERVICE TOP DRIVE AND CROWN 21:00 - 22:00 1.00 DRILL P PROD1 WASH DOWN.CIRC.SUB TO 10,780' -310 GPM,1220 PSI, -RPM 60,TQ 6K 22:00 - 22:30 0.50 DRILL P PROD1 DROP CIRC.SUB OPENING BALL(1.760 DIAM.)AND PUMP TO SEAT @ 84 GPM,350 PSI. -SUB OPENED @ 2320 PSI. 22:30 - 00:00 1.50 DRILL P PROD1 BACK REAM FROM 10,780'CIRC SUB DEPTH TO 10,530'.HOLE CLEAN,NO TIGHT SPOTS. -600 GPM,1350 PSI -RPM 60,TQ 6K 8/31/2010 00:00 - 01:00 1.00 DRILL P PROD1 CBU FROM 10,530' -610 GPM 1300 PSI -PUW 235,SOW 185,RTW 205 01:00 - 06:30 5.50 DRILL P PROD1 FLOW CHECK WELL -12 BBUHR STATIC LOSSES POOH ON ELEVATORS FROM 10,530' TO400' MD DROP WELL COMMANDER CLOSING BALL AND PRESSURE UP TO CLOSE CIRC SUB -TOOL FUNCTIONED AT 2,000 PSI MW IN AND OUT:8.6 PPG D1 KICK DRILL 06:30 - 07:30 1.00 DRILL P PROD1 LAY DOWN HWDP AND JARS Printed 12/17/2010 2:20:19PM North America -ALASKA- BP Page 37 of 37 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date:7/21/2010 End Date: X3-OOV1Z-C(5,933,206.00) i Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 07:30 - 08:30 1.00 DRILL P PROD1 RACK BACK HWDP BELOW JARS AND DRILL COLLARS IN DERRICK HOLD PJSM AND REMOVE SOURCES 08:30 - 09:00 0.50 DRILL P PROD1 DOWNLOAD MWD,LAY DOWN BHA#9 BIT GRADE:0-1-NO-A-0-1-NO-TD Printed 12/17/2010 2:20:18PM North America -ALASKA- BP Page 1 of 9 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/31/2010 09:00 - 13:30 4.50 CASING P ■- RUNPRD MOBILIZE CASING EQUIPMENT TO RIG FLOOR RIG UP TO RUN PRODUCTION LINER 13:30 - 19:00 5.50 CASING P RUNPR• RuN 4.1/7"17 Rt.13CR VAM T(1P I INFR FROM SURFACE TO 2,946'MD SWELL PACKER PLACEMENT TOPS:* -1 12,236' -2 12,071' (C -3 11,681' -4 11,200' 19:00 - 20:30 1.50 CASING P RUNPRD RIG DOWN 4-1/2"LINER RUNNING EQUIPMENT RIG UP 5-1/2"AND 7-5/8"RUNNING EQUIPMENT 20:30 - 22:00 1.50 CASING P RUNPRD RUN THE FOLLOWING JEWELRY IN PRODUCTION LINER FROM 2,946'TO 3,296' MD -4-1/2"X 5-1/2"CROSSOVER -6-1/4"OD X 4-3/4"ID SBR -5-1/2"CROSSOVER PUP -1 JT 5-1/2"17#LINER W/RA TAG IN CENTRALIZER(LOCKED DOWN BELOW COUPLING) -5-1/2"X 7-5/8"CROSSOVER JOINT -6 JTS 7-5/8"29.7#,ST-L LINER 22:00 - 23:00 1.00 CASING P - RUNPRD RIG DOWN 7-5/8"HANDLING EQUIPMENT RIG UP 2-7/8"HANDLING EQUIPMENT 23:00 - 00:00 1.00 CASING P RUNPRD RUN 12 JTS 2-7/8"FOX INNER STRING HOLD UNANNOUNCED D1 KICK WHILE TRIPPING DRILL -AAR AT DRILLERS CONSOLE FOLLOWING DRILL 9/1/2010 00:00 - 01:30 1.50 CASING P RUNPRD RIH WITH 2-7/8"FOX INNER STRING 01:30 - 02:30 1.00 CASING P RUNPRD RIG DOWN INNER STRING HANDLING EQUIPMENT AND FALSE FLOOR MAKE UP LINER HANGER/LINER TOP PACKER TO LINER 02:30 - 03:00 0.50 CASING P RUNPRD CLEAR RIG FLOOR OF LINER RUNNING EQUIPMENT RIG UP TO RUN ON DRILLPIPE CIRCULATE LINER VOLUME -190 GPM,140 PSI 03:00 - 10:00 7.00 CASING P RUNPRD RIH WITH 4-1/2"PRODUCTION LINER ON 5" DRILLPIPE TO 9,938'MD -FILL PIPE EVERY 15 STANDS -SLOW RUNNING SPEED DUE TO LOSSES -PIPE NOT TAKING CORRECT FILL ON LAST STOP(CALCULATED:24.5 BBL,ACTUAL:3 BBL) 10:00 - 10:00 0.00 CASING P RUNPRD PICK UP 5 STANDS 5"HWDP TO 10,495'MD Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 2 of 9 Operation Summary Report Common Well Name:W-19 1 AFE No Event Type: COM-ONSHORE(CON) Start Date:8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:00 - 13:00 3.00 CASING P RUNPRD CIRCULATE BOTTOMS UP AT SHOE -3 BPM,280 PSI -STAGE UP TO 6 BPM,400 PSI SIM-OPS WHILE CIRCULATING:ARRANGE DRILLPIPE IN DERRICK TO HAVE ACCESS TO REMAINING 5"DRILLPIPE 13:00 - 15:30 2.50 CASING P RUNPRD°RIH WITH 4-1/2"PRODUCTION LINER ON 5" DRILLPIPE FROM 10,495'TO 11,700'MD -FILL PIPE EVERY 10 STANDS -PIPE NOT TAKING CORRECT FILL (CALCULATED: 16.3 BBL,ACTUAL:4 BBL) FLOATS DO NOT APPEAR TO BE HOLDING -CONSULT WITH ANCHORAGE ENGINEERING. /� a Lk'DECISION MADE TO POOH. lv0 15:30 - 16:30 1.00 CASING N DFAL RUNPRD POOH FROM 11,700'TO 10,495'MD 16:30 - 18:00 1.50 CASING N DFAL. RUNPRD MOVE 4"DRILLPIPE BACK TO RACK BACK REMAINING 5"DRILLPIPE 18:00 - 23:00 5.00 CASING N DFAL RUNPRD POOH WITH 4"PRODUCTION LINER ON 5" DRILLPIPE FROM 10,495'TO 3,432'MD 23:00 - 00:00 1.00 CASING -N DFAL RUNPRD RIG UP TO BREAK OUT AND LAY DOWN LINER HANGER ASSEMBLY 9/2/2010 00:00 - 01:30 1.50 CASING N DFAL 11,700.00 RUNPRD LAY DOWN BAKER HANGER ASSEMBLY 01:30 - 03:00 1.50 CASING N DFAL 11,700.00 RUNPRD RIG UP 2-7/8"HANDLING EQUIPMENT LAY DOWN 2-7/8"INNER STRING HOLD D1 KICK DRILL WITH CREW 1/ -AAR AT DRILLERS CONSOLE 03:00 - 04:00 1.00 CASING N DFAL 11,700.00 RUNPRD RIG UP LINER HANDLING EQUIPMENT LAY DOWN 7-5/8"LINER RIG DOWN 7-5/8"ELEVATORS 04:00 - 06:30 2.50 CASING N DFAL 11,700.00 RUNPRD RIG UP 5-1/2"ELEVATORS LD 5-1/2"LINER AND SBR ASSEMBLY RIG DOWN 5-1/2"ELEVATORS CHANGE BALES,TONGS,AND RIG UP SINGLE JOINT COMPENSATOR FOR PULLING 4-1/2" LINER 06:30 - 09:30 3.00 CASING N DFAL 11,700.00 RUNPRD POOH, LD 4-1/2"LINER 09:30 - 10:00 0.50 CASING N DFAL 11,700.00 RUNPRD RIG UP AND PUMP DOWN LINER TO EVALUATE FLOATS -CONFIRMED FLOATS NOT HOLDING 10:00 - 12:00 2.00 CASING N DFAL 11,700.00 RUNPRD POOH WITH 4-1/2"LINER TO SHOETRACK 12:00 - 13:00 1.00 CASING N DFAL 11,700.00 RUNPRD LAY DOWN SHOETRACK -EMPTY SHOETRACK, RIH AND CONFIRM FLOATS NOT HOLDING 13:00 - 14:00 1.00 CASING N DFAL 11,700.00 RUNPRD RIG DOWN LINER RUNNING/PULLING EQUIPMENT CLEAR RIG FLOOR OF EQUIPMENT 14:00 - 15:00 1.00 CASING N DFAL 11,700.00 RUNPRD BREAK 5 STANDS 5"HWDP AND LAY DOWN 15:00 - 18:30 3.50 CASING N DFAL 11,700.00 RUNPRD MOBILIZE CLEANOUT BHA TO RIG FLOOR MAKE UP CLEANOUT BHA -SPERRY TO PREP MWD TOOLS Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 3 of 9 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 8/31/2010 ' End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12.00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:30 - 20:30 2.00 CASING N DFAL 11,700.00 RUNPRD FINISH MAKING UP CLEANOUT BHA AS FOLLOWS: -RE-RUN 6-1/8"SMITH XR-20 INSERT BIT(3 13/32"JETS) -SPERRY 5"MUD MOTOR(1.50 DEGREE BEND) -4-3/4"FLOAT SUB 5-3/4"INTEGRAL BLADE STABILIZER -NON-MAG 4-3/4"DM COLLAR -NON-MAG 4-3/4"TM COLLAR -4-3/4"WELL COMMANDER CIRC VALVE -3 X 4-3/4"FLEX COLLARS -CROSSOVER SUB 1 JT4"HWDP -4-3/4"DRILLING JARS -1JT4"HWDP TOTAL BHA LENGTH:257.73' SHALLOW TEST MWD -250 GPM,850 PSI 20:30 - 00:00 3.50 CASING N DFAL 11,700.00 RUNPRD RIH FROM 247'TO 8,000'MD MW IN AND OUT:8.5 PPG 9/3/2010 00:00 - 02:00 2.00 CASING N DFAL 11,700.00 RUNPRD RIH ON DRILLPIPE TO 9-5/8"SHOE 10,464' 02:00 - 03:00 1.00 CASING N DEAL 11,700.00 RUNPRD SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE 03:00 - 04:30 1.50 CASING N DFAL 11,700.00 RUNPRD RIH FROM 9-5/8"SHOE TO 12,655'MD -CHECKSHOT AT 12,071'MD TO CONFIRM IN OPENHOLE SIDETRACK -TAKING WEIGHT 20'INTO STAND 132 _12,655'MD) 104:30 - 05:00 0.50 CASING N DFAL 11,700.00 RUNPRD SCREW INTO TOP DRIVE WASH DOWN STAND FROM 12,655'TO 12,730' MD -300 GPM,1,200 PSI 05:00 - 06:00 1.00 CASING N DFAL 11,700.00 RUNPRD RIH FROM 12,730'MD ON ELEVATORS TO 13,673'MD SCREW INTO TOP DRIVE AND WASH FROM 13,673'TO 13,720'MD -TAG UP AT TD 06:00 - 06:30 0.50 CASING N DFAL 11,700.00 RUNPRD CIRCULATE 4 OPEN HOLE VOLUMES -310 GPM,1,500 PSI ,MUD WEIGHT IN AND OUT:8.5 PPG 06:30 - 09:00 2.50 CASING N DFAL 11,700.00 RUNPRD POOH ON ELEVATORS FROM 13,720'TO 10,780'MD 09:00 - 10:30 1.50 CASING N DFAL 11,700.00 RUNPRD BACKREAM FROM 10,780'TO SHOE AT 10,530' MD -310 GPM,1,050 PSI -80 RPM,7-9K TQ REAM BACK DOWN TO 10,780'MD -310 GPM,1,050 PSI -40 RPM,6K TQ SPOT CIRC SUB AT 10,780' 10:30 - 12:00 1.50 CASING N DFAL 11,700.00 RUNPRD DROP WELL COMMANDER OPENING BALL AND PUMP DOWN TO OPEN CIRC SUB -84 GPM,350 PSI -TOOL OPENED AT 2,200 PSI Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 4 of 9 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 12:30 0.50 CASING N DFAL 11,700.00 RUNPRD BACKREAM FROM 10,780'TO SHOE AT 10,530' MD -600-650 GPM,1,000-1,250 PSI -20 RPM,6K TQ 12:30 - 13:30 1.00 CASING N DFAL 11,700.00 RUNPRD CIRCULATE BOTTOMS UP AT THE SHOE -ROTATE AND RECIPROCATE DRILL STRING -650 GPM,1,250 PSI 30 RPM,6K TQ -MUD WEIGHT IN AND OUT:8.5 PPG 13:30 - 20:00 6.50 CASING N DFAL 11,700.00 RUNPRD FLOW CHECK WELL -NO FLOW PUMP DRY JOB POOH FROM 10,530 TO 258' 20:00 - 22:00 2.00 CASING N DFAL 11,700.00 RUNPRD LAY DOWN BHA BIT GRADE: 1-1-NO-A-E-I-SD-TD 22:00 - 23:30 1.50 CASING N DFAL 11,700.00 RUNPRD CLEAN AND CLEAR RIG FLOOR OF BHA COMPONENTS FUNCTION BOP STACK 23:30 - 00:00 0.50 CASING N DFAL 11,700.00 RUNPRD RIG UP 4-1/2"LINER RUNNING EQUIPMENT LOAD BAKER SHOETRACK INTO PIPE SHED AND STRAP 9/4/2010 00:00 - 01:00 1.00 CASING N DFAL 11,700.00 RUNPRD RIG UP TO RUN 4-1/2"X 5-1/2"X 7-5/8" PRODUCTION LINER 01:00 - 08:30 7.50 CASING N DFAL 11,700.00 RUNPRD RUN 4-1/2"X 5-1/2"X 7-5/8"PRODUCTION LINER -TORQUE TURN ALL CONNECTIONS BAKERLOCK SHOETRACK -CHECK FLOATS AFTER MAKING UP SHOETRACK(FLOATS HOLDING) { -FILL LINER EVERY 10 JOINTS 08:30 - 09:00 0.50 CASING N DFAL 11,700.00 RUNPRD RIG DOWN 4-1/2"LINER HANDLING TOOLS RIG UP 5-1/2"LINER HANDLING TOOLS RUN CROSSOVER JOINT WITH BAKER SBR AND 1 JT 5-1/2"17"WITH RA TAG ON FIXED CENTRALIZER BELOW TOP COUPLING -TORQUE TURN CONNECTIONS DRIFT ASSEMBLY AFTER MAKEUP WITH 4.77" DRIFT 09:00 - 10:00 1.00 CASING N DFAL 11,700.00 RUNPRD 'RIG DOWN 5-1/2"LINER HANDLING TOOLS CHANGE OUT BALES RIG UP 7-5/8"LINER HANDLING EQUIPMENT 10:00 - 11:00 1.00 CASING N DFAL 11,700.00 RUNPRD RUN 7-5/8"29.7#STL LINER -TORQUE TURN CONNECTIONS 11:00 - 13:00 2.00 CASING N DFAL 11,700.00 RUNPRD RIG DOWN 7-5/8"LINER HANDLING EQUIPMENT RIG UP 2-7/8"TOOLS FOR INNER STRING 13:00 - 14:30 1.50 CASING N DFAL 11,700.00 RUNPRD MAKE UP 2-7/8"INNER STRING WITH 4-1/2" BAKER LINER WIPER PLUG ON END D1 KICK DRILL 14:30 - 15:30 1.00 CASING N DFAL 11,700.00 RUNPRD RIG UP 7-5/8"TONGS MAKE UP 7-5/8"BAKER FLECLOCK II/ZXP LINER HANGER,LINER TOP PACKER ASSEMBLY 15:30 - 16:00 0.50 CASING N DFAL 11,700.00 RUNPRD CIRCULATE LINER VOLUME -210 GPM,160 PSI Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 5 of 9 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date:8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 22:00 6.00 CASING N DFAL 11,700.00 RUNPRD RIH ON 5"DRILLPIPE FROM 3,345'TO 9,945' MD -FILL PIPE EVERY 10 STANDS MUD WEIGHT IN AND OUT:8.5 PPG 22.00 - 22:30 0.50 CASING N DFAL 11,700.00 RUNPRD PICK UP 15 JOINTS 5"HWDP FROM PIPE SHED RUN ONE MORE STAND 5"DRILLPIPE TO 10,500' 22:30 - 00:00 1.50 CASING N DFAL 11,700.00 RUNPRD ESTABLISH CIRCULATION AT 2 BPM STAGE UP TO 5 BPM AND CIRCULATE BOTTOMS UP _ -210 GPM,360 PSI 9/5/2010 00:00 - 00:30 0.50 CASING N DFAL 11,700.00 RUNPRD FINISH CIRCULATING BOTTOMS UP -210 GPM,360 PSI 00:30 - 01:30 1.00 CASING N DFAL 11,700.00 RUNPRD RIH WITH LINER TO TD ON 5"DRILLPIPE -FILL PIPE EVERY 10 STANDS 01:30 - 03:00 1.50 CASING P RUNPRD CONTINUE TO RIH WITH LINER ON 5" DRILLPIPE to 13,437'MD -FILL PIPE EVERY 10 STANDS -HANG UP AT 13,437'MD 03:00 - 05:00 2.00 CASING P RUNPRD WORK LINER AT 13,437'MD -WORK WITH PUMPS ON AND OFF -WORK UP TO 7 BPM,900 PSI -SLACK OFF 100K FROM DOWN WEIGHT -ABLE TO WORK THROUGH -CIRCULATE DOWN TO 13,517'MD;5 BPM, 750 PSI 05:00 06:00 1.00 CASING P ■ RUNPRD CIRCULATE DOWN LINER FROM 13,517'to 13,706'MD -5.5 BPM,800 PSI 06:00 - 08:00 2.00 CASING P RUNPRD CIRCULATE AND CONDITION MUD FOR CEMENT JOB -5 BPM,820 PSI -PUW 275K,SOW 190K BATCH MIX MUD PUSH AND AND HOLD PJSM WITH SCHLUMBERGER CEMENTERS WHILE CONDITIONING HOLE Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 6 of 9 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 8/31/2010 End Date:9/9/2010 X3-00V1Z-C(1,343,233.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 10:30 2.50 CEMT P RUNPRD CEMENT 4-1/2"LINER WITH RECIPROCATION AS FOLLOWS: 06:20 START BATCH MIXING 11.0 PPG MUD PUSH II n� 07:00 START BATCH MIXING 15.8 PPG G V•- ' CEMENT 08:00 STOP CIRCULATING.LINE UP SLB f inGC CEMENTERS TO WELL. FLOOD LINES TO BOTTOM TIW ON CEMENTHEAD WITH MUD PUSH II 08:18 TEST LINES TO 4,800 PSI-GOOD 08:22 PUMP 25 BBL 11.0 PPG MUD PUSH II AT 4.5 BPM,510 ' 08:32 PUMP 30 BBL 15.8 PPG TAIL CEMENT AWAY AT 4.5 BPM -15.8 PPG CLASS G WITH GASBLOK AND 35% SILICA -4.5 BPM,120 PSI TREATING PRESSURE 08:45 PUMP 55 BBL 15.8 PPG TAIL CEMENT AWAY AT 4.5 BPM -15.8 PPG CLASS G WITH GASBLOK,35% SILICA,AND 1.0 LB/BBL CEMNET LCM ADDITIVE -4.5 BPM,105 PSI TREATING PRESSURE 08:57 PUMP 8.5 BBL 15.8 PPG TAIL CEMENT AWAY AT 4.5 BPM -15.8 PPG CLASS G WITH GASBLOK AND 35% SILICA -4.5 BPM,35 PSI TREATING PRESSURE 09:00 STOP PUMPING CEMENT 09:00 DROP DART 09:01 BEGIN DISPLACEMENT WITH RIG PUMPS DISPLACE WITH 8.5 PPG POWER VIS MUD -FIRST 75 BBLS POWER VIS PERF PLUG -PUMP 10 BPM TO CATCH UP TO CEMENT 09:06 CATCH UP TO CEMENT.DROP RATE TO 5 BPM,580 PSI 09:32 SLOW PUMP RATE TO 3.5 BPM AT 820 STROKES.DID NOT OBSERVE PLUG LATCH -MAINTAIN PUMP RATE AT 3.5 BPM 09:44 PLUG BUMP AT 2,109 STROKES(213 BBL DISPLACED); CALCULATED DISPLACEMENT WAS 222 BBLS BUMPED PLUG WITH 2,109 PSI PRESSURE BLEED OFF PRESSURE AND CHECK FLOATS -FLOATS HOLDING LINE UP SCHLUMBERGER CEMENT TRUCK INCREASE PRESSURE TO 4,500 PSI,SLACK OFF TO 50K, SET LINER HANGER,AND RELEASE FROM RUNNING TOOL SET LINER TOP PACKER FULL RETURNS THROUGHOUT JOB WHILE RECIPROCATING LINER WITH 15'STROKES CEMENT IN PLACE AT 09:44 -UCA TEST SHOWS COMPRESSIVE STRENGTH AFTER 15.5 HRS Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 7 of 9 Operation Summary Report Common Well Name:W-19 I AFE No Event Type:COM-ONSHORE(CON) Start Date: 8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) _ Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) AT 1000PSI - - CKENING TIME @ 90 DEG=6 HRS 2 MIN CEMENT JOB VOLUME: 93.5 BBLS 15.8 PPG CLASS G TAIL WITH 35% BWOC SILICA;341 SACKS AT 1.54 CUFT/SK 10:30 - 11:00 0.50 CEMT P RUNPRD • i• ' '0• o - i` 'IPE 11:00 - 12:00 1.00 CEMT P RUNPRD CIRCULATE OUT MUD PUSH AND EXCESS CEMENT -13 BPM,1,575 PSI -RECIPROCATE STRING -28 BBLS MUD PUSH II AND 30 BBLS CEMENT CONTAMINATED MUD RECOVERED 12:00 - 13:00 1.00 CEMT P RUNPRD FLOW CHECK WELL NO FLOW POOH 5 STANDS TO GET 2-7/8"INNER STRING ABOVE LINER 13:00 - 14:30 1.50 CEMT P RUNPRD SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE AND CROWN 14:30 - 19:00 4.50 CEMT P RUNPRD PUMP DRY JOB POOH WITH 5"DRILLPIPE MUD WEIGHT 8.5 PPG 19:00 - 20:00 1.00 CEMT P RUNPRD RIG UP TO LAY DOWN LINER HANGER RUNNING TOOL AND 2-7/8"INNER STRING 20:00 - 21:30 1.50 CEMT P RUNPRD LAY DOWN LINER HANGER RUNNING TOOL AND 2-7/8"INNER STRING -PUP ON LINER HANGER RUNNING TOOL WAS BUCKLED 21:30 - 23:00 1.50 PERFOB P OTHCMP RIG UP TO RUN TCP PERF GUNS 23:00 - 00:00 1.00 PERFOB P OTHCMP RUN 2-3/8"PERF GUNS TO 600' 9/6/2010 00:00 - 01:30 1.50 PERFOB P OTHCMP RIH WITH 2-3/8"PERF GUNS AND FIRING HEAD TO 1,179'MD 01:30 - 02:00 0.50 PERFOB P OTHCMP RIG UP 2-7/8"TORQUE TURN EQUIPMENT 02:00 - 06:00 4.00 PERFOB P OTHCMP RUN 2-7/8"FOX WORKSTRING FROM 1,179' TO 3,316'MD MAKE UP CROSSOVERS TO 5"DRILLPIPE 06:00 - 11:30 5.50 PERFOB P OTHCMP RIH ON 5"DRILLPIPE PLUS 5 STANDS 5" HWDP MUD WEIGHT:8.7 PPG D1 KICK DRILL 11:30 - 13:30 2.00 PERFOB P OTHCMP RIG UP TO PRESSURE TEST LINER SPOT PERF GUNS ON DEPTH PRESSURE TEST PRODUCTION LINER TO 250 PSI FOR 5 MINUTES -GOOD TEST INCREASE PRESSURE TO 3,500 PSI AND TEST FOR 30 MINUTES -BOTH TESTS CHARTED -10.5 BBLS TO PRESSURE UP -50 PSI LOST IN FIRST 15 MINUTES -15 PSI LOST IN SECOND 15 MINUTES -10.5 BBLS BLED BACK -GOOD TEST Printed 12/17/2010 2:19:21 PM *North America -ALASKA- BP Page 8 of 9 Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 14:30 1.00 PERFOB P OTHCMP RIG UP TO PERFORATE LINER CLOSE RAMS AND PUMP DOWN ANNULUS AND DRILLPIPE RUN PRESSURE SEQUENCE TO FIRE TCP GUNS PER SCHLUMBERGER TCP REP 2.88",4 SPF,60 DEG PHASING,2906PJ PERF GUNS PERF INTERVALS: / -13,620'-13,630' 1vt/o[ -13,564'-13,574' -13,350'-13,510' -12,955'-13,320' -12,790'-12,920' -12,560'-12,640' -12,490'-12,540' INITIAL FLUID LOSS TO WELL:2 BBL 14:30 - 15:00 0.50 PERFOB P OTHCMP POOH 13 STANDS TO 12,366' -SPOT PERF GUNS ABOVE TOP PERF 15:00 - 16:30 1.50 PERFOB P OTHCMP CIRCULATE BOTTOMS UP -386 GPM,1,270 PSI MUD WEIGHT IN AND OUT:8.8 PPG 16:30 - 18:30 2.00 PERFOB P OTHCMP FLOW CHECK WELL -NO FLOW POOH FROM 12,366'TO 10,107'MD -HOLE FILL OFF BY 2 BBL FLOW CHECK WELL -NO FLOW DECIDE TO TRIP BACK TO TOP PERF AND CIRCULATE AS A PRECAUTION 18:30 - 19:30 1.00 PERFOB P OTHCMP RIH FROM 10,107'TO 12,489'MD -ABOVE TOP PERF 19:30 - 21:00 1.50 PERFOB P OTHCMP CIRCULATE SURFACE-TO-SURFACE -386 GPM,1,250 PSI 21:00 - 22:30 1.50 PERFOB P OTHCMP FLOW CHECK WELL -NO FLOW POOH FROM 12,489'TO 10,000'MD 22:30 - 00:00 1.50 PERFOB P OTHCMP FLOW CHECK WELL -NO FLOW PUMP DRY JOB 9/7/2010 00:00 - 03:00 3.00 PERFOB P OTHCMP POOH FROM 10,000'TO 3,315' MUD WEIGHT:8.8 PPG 03:00 - 03:30 0.50 PERFOB P OTHCMP RIG UP 2-7/8"CASING HANDLING EQUIPMENT 03:30 - 07:00 3.50 PERFOB P OTHCMP POOH,LAYING DOWN 2-7/8"FOX TUBING MUD WEIGHT:8.8 PPG 07:00 - 07:30 0.50 PERFOB P OTHCMP RIG DOWN 2 7/8"HANDLING TOOLS RIG UP HANDLING TOOLS FOR PERF GUNS 07:30 - 10:00 2.50 PERFOB P OTHCMP PJSM FOR LAYING DOWN GUNS LAY DOWN PERF GUNS,ALL SHOTS FIRED AFTER ACTION REVIEW FOR LAYING DOWN GUNS 10:00 - 10:30 0.50 PERFOB P OTHCMP CLEAN AND CLEAR RIG FLOOR 10:30 - 11:30 1.00 EVAL P OTHCMP SPOT WIRELINE UNIT PJSM WITH WIRELINE CREW MOB ELINE TOOLS TO RIG FLOOR FIRE DRILL= 1:45 Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 9 of 9 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:8/31/2010 End Date: 9/9/2010 X3-00V1Z-C(1,343,233.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) G N^,1 11:30 - 12:30 1.00 EVAL P OTHCMP MAKE UP TOOLS FOR SCMT RUN S 12:30 - 18:30 6.00 EVAL P OTHCMP RIH ON E-LINE TO 11,010' LOG UP FROM 11,010'TO 10,350'MD GOOD CEMENT TO TOP OF 7 5/8"LINER TOP TABLE TOP MAN DOWN DRILL-15 MIN 18:30 - 21:00 2.50 EVAL P OTHCMP LAY DOWN SCMT LOGGING TOOL AND PICK UP BAKER WIRELINE SET RETRIEVABLE I BRIDGE PLUG Printed 12/17/2010 2:19:21 PM North America -ALASKA- BP Page 1 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/7/2010 21:00 - 00:00 3.00 STWHIP P PROD2 RIH WITH BAKER WIRELINE SET RETRIEVABLE BRIDGE PLUG ON E-LINE 9/8/2010 00:00 - 02:00 2.00 STWHIP N DFAL 10,726.00 PROD2 LOG RBP ON DEPTH WITH TOP SET AT 10,726' INITIATE FIRING,SETTING TOOL DID NOT FIRE, REPEAT MULTIPLE TIMES,SETTING TOOL DID NOT FIRE POOH WITH RBP 02:00 - 03:00 1.00 STWHIP N DFAL 10,726.00 PROD2 TROUBLE SHOOT SETTING TOOL,FIRST TWO STAGES BURNED BUT THIRD STAGE DID NOT IGNITE RELOAD CHARGE IN SETTING TOOL, RIH Of? 03:00 - 04:00 1.00 STWHIP N DFAL 10,726.00 PROD2 LOG ON DEPTH WITH TOP OF RBP AT 10,726' FIRE SETTING TOOl RBP SET WITH TOP AT 10,726' STACK RUNNING TOOL WEIGHT,PLUG HELD 04:00 - 06:00 2.00 STWHIP P PROD2 POH WITH RUNNING TOOL PJSM WITH E-LINE CREW LAY DOWN RUNNING TOOL 06:00 - 07:00 1.00 STWHIP P PROD2 RIG UP TEST EQUIPMENT.TEST RBP TO 250 PSI LOW,3500 PSI HIGH, FOR 10 CHARTED MINUTES.TEST OK. RIG DOWN TEST EQUIPMENT. 07:00 - 07:30 0.50 STWHIP P PROD2 PJSM. DISUSS DROPPED OBJECT HAZARDS. RIG DOWN E-LINE EQUIPMENT AND TOOLS. 07:30 - 08:30 1.00 STWHIP P PROD2 PU 2 7/8"PAC TO 408'. 08:30 - 14:00 5.50 STWHIP P PROD2 CHANGE OUT HANDLING EQUIPMENT.MU XO'S,2 PUPS JOINTS,1 JOINT 5"DRILL PIPE. RIH ON 5"DRILL PIPE STANDS TO TOP OF RBP AT 10726'MD.HOLD BOP DRILL AND CONDUCT AAR. / 14:00 - 15:30 1.50 STWHIP P PROD2 RIG UP SCH CEMENT TRUCK TO PUMP SAND f! SLURRY. 15:30 - 16:30 1.00 STWHIP P PROD2 PJSM.PUMP 10 BBLS WATER SHUT DOWN AND TEST LINES TO 1800 PSI.PUMP 5 BBLS NEAT GEL FOLLOWED BY 3.5 BBLS HEC GEL WITH 750 LBS OF 20/40 SAND FOLLOWED BY 2 BBLS NEAT GEL.CHASE WITH 5 BBLS WATER.SWITCH TO RIG PUMPS AND DISPLACE WITH 190 BBLS MUD AT 295-398 GPM WITH 290-390 PSI. 16:30 - 17:00 0.50 STWHIP P PROD2 POOH WITH 4 STANDS DRILL PIPE. 17:00 - 18:30 1.50 STWHIP P PROD2 SLIP AND CUT 60'OF DRILLING LINE. 18:30 - 20:00 1.50 STWHIP P PROD2 RIH TO 10722'MD IN AN ATTEMPT TO TAG UP ON SAND.NO SAND ENCOUNTERED. 20:00 - 23:00 3.00 STWHIP P PROD2 PULL 4 STANDS OF DRILL PIPE.CHANGE OUT SAVER SUB ON TOP DRIVE WHILE WAITING ON STORM PACKER. 23:00 - 00:00 1.00 STWHIP P PROD2 POOH TO 10257'MD.PU STORM PACKER AND RUN IN ON A DRILL PIPE STAND.SET AT 97'FROM SURFACE AND BOTTOM AT 10354' MD. 9/9/2010 00:00 - 00:30 0.50 STWHIP P PROD2 RIG UP AND TEST STORM PACKER TO 500 PSI FOR 10 MINUTES. 00:30 - 01:00 0.50 BOPSUR P PROD2 DRAIN STACK.PULL WEAR BUSHING. Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 2 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:OOAM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) _ 01:00 - 01:30 0.50 BOPSUR P PROD2 MU, RUN IN AND INSTALL TEST PLUG. 01:30 - 02:00 0.50 BOPSUR P PROD2 RIG UP TO TEST BOPE. 02:00 - 09:30 7.50 BOPSUR P PROD2 TEST BOPE TO 250 PSI LOW,3500 PSI HIGH. TEST HYDRIL TO 250 PSI LOW,2500 PSI HIGH.TEST UPPER 2 7/8"x 5"VARIABLE RAMS WITH 2 7/8"AND 5"TEST JOINTS.TEST 0 LOWER 3 1/2"x 6"VARIABLES WITH 4"AND 5" !�J(�/1^( TEST JOINTS.TEST HYDRIL WITH 2 7/8"TEST JOINT.TEST WITNESS WAIVED BY CHUCK SCHEAVE WITH AOGCC.TEST WITNESSED BY WSL MITCH SKINNER AND TOURPUSHER I w TOM SHONES. 09:30 - 10:00 0.50 BOPSUR P PROD2 RIG DOWN TEST EQUIPMENT.PULL TEST PLUG. 10:00 - 10:30 0.50 STWHIP P PROD2 INSTALL WEAR RING.` 10:30 - 11:30 1.00 STWHIP P PROD2 MAKE UP RUNNING TOOL. RIH. ENGAUGE STORM PACKER AND RELEASE. POOH AND LD: 11:30 - 12:00 0.50 STWHIP P PROD2 RIH TO 10721'MD IN AN ATTEMPT TO TAG SAND,NO SAND ON TOP OF PLUG. 12:00 - 15:30 3.50 STWHIP N FLUD PROD2 USE VAC TRUCKS TO EMPTY PITS.FILL PITS WITH 2%KCL WATER IN PREPARATION FOR DISPLACEMENT. 15:30 - 16:30 1.00 STWHIP N FLUD PROD2 DISPLACE WELLBORE OVER TO 2%KCL WATER.PUMP AT 500 GPM WITH 1550 PSI. 16:30 - 18:30 2.00 STWHIP N FLUD PROD2 RIG UP HOPPER ON DRILL PIPE AND BRING 20/40 SAND TO RIG FLOOR.DUMP 750 LBS 20/40 RIVER SAND DOWN DRILL PIPE. 18:30 - 20:00 1.50 STWHIP N FLUD PROD2 PUMP AT 2 BPM TO DISPLACE SAND FROM DRILL PIPE. PUMP ONE DRILL PIPE VOLUME. 20:00 - 20:30 0.50 STWHIP N FLUD PROD2 WAIT FOR SAND TO SETTLE WHILE RIGGING DOWN DRILL PIPE HOPPER SYSTEM. 20:30 - 21:00 0.50 STWHIP N FLUD PROD2 RIH AND TAG SAND AT 10899'Mn 1'AR(1VF 5,5"LINER.SET DOWN 10K.PU TO TOP OF } STAND.GO BACK DOWN.TAKING WEIGHT AT 10686'MD.CONTINUE DOWN TO 10692'MD AND TAG AGAIN WITH 10K DOWN WEIGHT. PULL BACK UP TO TOP OF STAND. 21:00 - 23:30 2.50 STWHIP N FLUD PROD2 DISPLACE 2%KCL WATER WITH 8.8 PPG POWER VIS MUD AT 424 GPM WITH 790 PSI. WORK PIPE DOWN TO 10687'MD.WHEN MUD EXITS MULE SHOE WASH DOWN TO 10692' MD. IMMEDIATELY PULL BACK UP TO 10687' MD THEN SLOWLY PULL UP TO TOP OF STAND AND CONTINUE TO DISPLACE WELL. MONITOR WELL.MUD WEIGHT IN AND OUT 8.8 PPG. 23:30 - 00:00 0.50 STWHIP P PROD2 RIH WITH NO PUMPS AND TAG SAND AT 10698'MD WITH 10K DOWN,SHOWING 28'OF SAND ON RBP.PULL BACK UP TO 10637'MD AND CIRCULATE BU AT 510 GPM WITH 850 PSI TO CLEAR WELLBORE OF REMAINING SAND. 9/10/2010 00:00 - 01:00 1.00 STWHIP P PROD2 FINISH CIRCULATING BU,SHUT DOWN. MONITOR WELL.PREPARE TO POOH. 01:00 - 03:00 2.00 STWHIP P PROD2 POOH FROM 10637'MD TO 7521'MD. 03:00 - 03:30 0.50 STWHIP P PROD2 LAY DOWN 5"HWDP TO 7061'MD. 03:30 - 06:00 2.50 STWHIP P PROD2 POOH TO 415'MD. Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 3 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date: 8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 07:00 1.00 STWHIP P PROD2 CHANGE OUT HANDLING EQUIPMENT. PULL AND LD 2 7/8"PAC PIPE. 07:00 - 08:00 1.00 STWHIP P PROD2 CLEAN AND CLEAR FLOOR.HOLD UNANNOUNCED H2S AND RIG EVACUATION DRILL.HOLD AAR. 08:00 - 08:30 0.50 STWHIP P PROD2 PU MILLING BHA TO RIG FLOOR. 08:30 - 12:30 4.00 STWHIP P PROD2 MAKE UP WHIPSTOCK SLIDE AND MILLING BHA TO 450'MD. 12:30 - 20:00 7.50 STWHIP P PROD2 RIH WITH WHIPSTOCK AND MILLING BHA TO 104nry Mn 20:00 - 20:15 0.25 STWHIP P PROD2 ORIENT SLIDE FACE TO 22 DEGREES RIGHT OF HIGH SIDE. 20:15 - 20:30 0.25 STWHIP P PROD2 RIH TO 10637'MD.UP WEIGHT 250K,DOWN WEIGHT 197K. 20:30 - 21:00 0.50 STWHIP P PROD2 ORIENT SLIDE FACE TO 27 DEGREES RIGHT OF HIGH SIDE RIH TAG UP HIGH AT 10686' MD,SET DOWN 20K TO SFT ANCHOR PULL UP TO 265K.GO BACK DOWN AND SET 25K DOWN AND SHEAR OF SLIDE BOLT.PULL UP 250K AND VERIFY MILL RELEASED. 21:00 - 00:00 3.00 STWHIP P PROD2 BEGIN MILLING WINDOW WITH TOW AT 10619'MD.BOW WILL BE 10632'MD.MILL AHEAD TO 10625'MD.PUMP AT 327 GPM WITH 1400 PSI.ROTATE AT 122 RPM WITH 15-19K TORQUE.WOB 8-12K.MAKE ADDITIONS OF LUBE 776 WITH NO APPRECIABLE DECREASE IN TORQUE.PUMP STEEL LUBE EP SWEEP AND DUMP ON /� SURFACE.TORQUE DROPPED TO 9-10K. JL--` PUMP SWEEPS AS NEEDED. 9/11/2010 00:00 - 06:30 6.50 STWHIP P PROD2 MILL 7 5/8"WINDOW TO 10650'MD.PUMP AT 333 GPM WITH 1440 PSI ON BOTTOM,1350 PSI OFF BOTTOM.WOB 10-15K.ROTATE AT 115 RPM WITH 10K TORQUE.PUMPING SWEEPS AS NEEDED.PUW 250K,SOW 195K, ROT 215K. 06:30 - 07:00 0.50 STWHIP P PROD2 PUMP SUPERSWEEP AT 330 GPM WITH 1430 PSI. 07:00 - 07:30 0.50 STWHIP N DPRB 3,019.00 PROD2 NOTICED PRESSURE LOSS.PIPE APPEARED TO PART WITH A LOSS 140K STRING WEIGHT.SET BACK DOWN IN AN ATTEMPT TO SCREW BACK INTO PIPE WITH NO SUCCESS. 07:30 - 09:30 2.00 STWHIP N DPRB 3,019.00 PROD2 MONITOR WELL.POOH 32 STANDS.FOUND PIPE HAD WASHED OUT THEN TWISTED OFF. _LAY DOWN TWISTED OFF SF(T(_ON OF PIPE_ WHICH WAS 29.98'.REPLACE JOINT IN STAND AND INSPECT DRAWWORKS CHAINS. 09:30 - 10:00 0.50 FISH N DFAL 3,019.00 PROD2 PU UP FISHING TOOLS TO RIG FLOOR. 10:00 - 11:00 1.00 FISH N DFAL 3,019.00 PROD2 PJSM. DISCUSS DROPPED OBJECT POTENTIAL. MU OVERSHOT GRAPPLE, EXTENSIONS AND BUMPER SUB. 11:00 - 12:00 1.00 FISH N DFAL 3,019.00 PROD2 RIH ON 5"DRILL PIPE TO 1895'MD. 12:00 - 12:30 0.50 FISH P 3,019.00 PROD2 INSPECT AND SERVICE THE TOP DRIVE, BLOCKS AND DRAWWORKS. 12:30 - 13:00 0.50 FISH N DFAL 3,019.00 PROD2 RIH TO 3019'MD. Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 4 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE (RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:00 - 13:30 0.50 FISH N DFAL 3,019.00 PROD2 ESTABLISH PERAMETERS,PUW 110K,SOW 106K.SET 6 1/2"GRAPPLE.PULL 300K, GRAPPLE RELEASED.SET BACK DOWN 25K. PULL UP WITH NO WEIGHT INCREASE. 13:30 - 15:30 2.00 FISH N DFAL 3,019.00 PROD2 MONITOR WELL,STATIC.POOH TO 16'. CHANGE OUT 5"ELEVATORS. 15:30 - 17:00 1.50 FISH N DFAL 3,019.00 PROD2 LAY DOWN 6 1/2"OVERSHOT.THE 6 1/2" GRAPPLE AND GRAPPLE LOCK DOWN RING MISSING FROM OVERSHOT.GRAPPLE IS A SPIRAL RING IN THE SHAPE OF A SPRING. THE IRON IS 1"WIDE AND THE OVERALL LENGTH IS 8"TO 9".PU 5"GRAPPLE AND OVERSHOT. 17:00 - 17:30 0.50 FISH N DFAL 3,019.00 PROD2 MU 5"OVERSHOT AND GRAPPLE. 17:30 - 18:30 1.00 FISH N DFAL 3,019.00 PROD2 RIH TO 3019'MD. MU TOP DRIVE. 18:30 - 19:30 1.00 FISH N DFAL 3,019.00 PROD2 ESTABLISH PARAMETERS,PUW 110K,SOW 106K.PUMP AT 300 GPM WITH 1200 PSI. SLACK OFF AND LATCH FISH.PULL 275K, THEN 300K,THEN 320K-NO GO.TURN PIPE IN 1/4 TO 1/2 INCREMENTS AND ATTEMPT TO PULL THROUGH TOP OF WINDOW-NO GO. PULL TO 335K AND PULL THROUGH WINDOW. 19:30 - 21:00 1.50 FISH N DFAL 3,019.00 PROD2 CIRCULATE AT 300 GPM WITH 1200 PSI. 21:00 - 23:00 2.00 FISH N DFAL 3,019.00 PROD2 BLOW DOWN TOP DRIVE WHILE MONITORING WELL-STATIC.POOH TO 7631' MD. 23:00 - 00:00 1.00 FISH N DFAL _3,019.00 PROD2 PJSM.DISCUSS DROPPED OBJECT POTENTIAL.BREAK OUT OVERSHOT WITH GRAPPLE.BREAK AND LAY DOWN DRILL PIPE FISH AT 1.83'.PULL ONE STAND TO CHECK FOR 6 1/2"GRAPPLE,NO GRAPPLE. MONITOR WELL,INSTALL STRIPPING RUBBER AND AIR SLIPS. 9/12/2010 00:00 - 03:30 3.50 FISH N DFAL 3,019.00 PROD2 PJSM.PULL 10 STANDS AND FIND 1 FULL RING,WHICH IS ABOUT 1/3 OF THE 6 1/2" GRAPPLE,ON TOP OF A TOOL JOINT. CONTINUE TO POOH TO 380'MD.DID NOT RECOVER ANY MORE PIECES OF GRAPPLE. 03:30 - 06:00 2.50 FISH N DFAL 3,019.00 PROD2 CHANGE OUT ELEVATORS WHILE MONITORING WELL-STATIC.STAND BACK 4 3/4"DRILL COLLARS.LD ONE DRILL COLLAR AND XO'S.CO ELEVATORS.LD DM,TM, FLOAT SUB,HWDP,STRING MILLS AND WINDOW MILL.WINDOW MILL HAD SMALL CHUNCK BROKEN OFF OF LEADING EDGE AND THE 3 1/2"HWDP WAS CORK SCREW BENT.PICK OVERSHOT AND GRAPPLE ASSEMBLY BACK UP AND MAKE SERVICE BREAKS.LD BUMPER SUB AND OVERSHOT. 06:00 - 06:30 0.50 FISH N DFAL 3,019.00 PROD2 CLEAR AND CLEAN FLOOR. 06:30 - 07:00 0.50 FISH N DFAL 3,019.00 PROD2 PU JUNK MILL TOOLS TO RIG FLOOR. 07:00 - 08:30 1.50 FISH N DFAL 3,019.00 PROD2 PJSM.DISCUSS DROPPED OBJECT SAFETY. MAKE UP JUNK MILL ASSEMBLY WITH UPPER STRING MILL TO 346'MD. 08:30 - 12:00 3.50 FISH N DFAL 3,019.00 PROD2 RIH WITH 5"DRILL PIPE TO 6950'MD FILLING EVERY 20 STANDS.HOLD SPILL DRILL WITH AAR. Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 5 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 12:30 0.50 FISH P ._ PROD2 SERVICE AND INSPECT TOP DRIVE, BLOCKS AND DRAWWORKS. 12:30 - 15:00 2.50 FISH N DFAL 3,019.00 PROD2 CONTINUE TO RIH TO 10378'MD,TAGGED JUNK ON LINER TOP.ESTABLISH PARAMETERS,PUW 250K,SOW 190K ROT 220K, PUMP AT 170 GPM WITH 500 PSI. ROTATE AT 60 RPM WORK JUNK THROUGH LINER TOP WITH 8K TORQUE.RIH AND TAG AT 10619'MD.WORKED JUNK PAST WINDOW. 15:00 - 18:00 3.00 STWHIP N DFAL 3,019.00 PROD2 MILL JUNK AT 170 GPM WITH 460 PSI. ROTATE AT 60 RPM WITH 11K TORQUE. INCREASE RPM TO 100 TO DRESS WINDOW WITH 8K TORQUE. PUW 260,SOW 195K, ROT 220K. 18:00 - 20:00 2.00 STWHIP P PROD2 PUMP SUPER SWEEP AT 210 GPM WITH 780 PSI. INCREASE PUMP RATE TO 550 GPM WITH 2500 PSI. ROTATE AT 110 RPM AND WORK PIPE DRESSING WINDOW.SLIDE THROUGH WINDOW WITH NO ROTATION. SHUT DOWN PUMP AND WORK THROUGH WINDOW.WINDOW APPEARS TO BE IN GOOD SHAPE. 20:00 - 22:30 2.50 STWHIP P -_ PROD2 MONITOR WELL-STATIC. BLOW DOWN TOP DRIVE. POOH TO 5913'MD. 22:30 - 00:00 1.50 STWHIP P PROD2 PJSM.CUT AND SLIP 60'OF DRILLING LINE. 9/13/2010 00:00 - 02:30 2.50 STWHIP P . PROD2 PJSM. POOH WITH JUNK MILL,STRING MILL ASSEMBLY TO 346'MD. 02:30 - 04:00 1.50 STWHIP P PROD2 LAY DOWN JUNK MILL,BOOT BASKETS AND STRING MILL.STRING MILL IN GAUGE. RECOVERED SEVERAL PIECES OF GRAPPLE AND METAL CUTTINGS.ALSO RECOVERED A COUPLE HANDFULS OF METAL SHAVINGS. 04:00 - 05:00 1.00 STWHIP P ®_ PROD2 RIH WITH STACK JETTING TOOL. FLUSH STACK.CLEAR AND CLEAN FLOOR. 05:00 - 07:00 2.00 DRILL P PROD2 PJSM. DISCUSS DROPPED OBJECT POTENTIAL.PU AND MU BIT,MOTOR,FLOAT SUB AND DM.ORIENT.MU SLIM PHASE,ALD AND COLLARS.PICK UP PWD,TM AND CIRC SUB. HOLD AAR. 07:00 - 09:00 2.00 DRILL P PROD2 UPLOAD MWD.SHALLOW TEST AT 300 GPM WITH 950 PSI. PJSM. DISCUSS HAZARDS ASSOCIATED WITH HANDLING NUCLEAR SOURCES. PREP PORTS AND LOAD NULEAR SOURCE. 09:00 - 10:00 1.00 DRILL P ■- PROD2 PU NEW FLEX COLLARS.CHANGE OUT ELEVATORS.PU 4"HWTDP,JARS AND XO'S RIH TO 302'. 10:00 - 12:00 2.00 DRILL P ■ PROD2 RIH TO 3810'.CHANGE HANDLING EQUIPMENT. RIH ON 5"DP.HOLD WELL CONTROL DRILL THEN AAR. 12:00 - 12:30 0.50 DRILL P -_ PROD2 SERVICE AND INSPECT TOP DRIVE, BLOCKS W AND DRAWORKS. 12:30 - 16:30 4.00 DRILL P ■- PROD2 BIH E 10 ESTAB PWD BASELINE.INE.. RIH RIH T TO 10609'MD.MD. RECORED SLOW PUMP RATES. Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 6 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/30/2010 End Date: X3-OOV1Z-C(1,729,774.00) _ I Project:Prudhoe Bay Site: PB W Pad • Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:30 - 00:00 7.50 DRILL P PROD2 DIRECTIONAL DRILL AHEAD IN 6 1/8"PILOT HOLE TO 11,000'MD. PUMP AT 300 GPM WITH 1900 PSI ON BOTTOM 1670 PSI OFF BOTTOM. WOB 20-25K. PUW 237K,SOW 182K.AST- _ 4.21 HOURS,ART-0 HOURS 9/14/2010 00:00 - 06:00 6.00 DRILL P PROD2 DIRECTIONAL DRILL AHEAD IN 6-1/8"PILOT HOLE FROM 11,000'MD TO 11,260'. PUMP AT 300 GPM WITH 1850 PSI ON BOTTOM 1590 PSI OFF BOTTOM. NO ROTATION DUE TO DOGLEGS EXCEEDING MWD LIMITATION. WOB 20-25K. PUW 237K,SOW 182K. 06:00 - 12:00 6.00 DRILL P PROD2 DRILL FROM 11,260'TO 11,464'MD(9.034, TVD) -PUW 240K;SOW 177K;ROT 205K -300 GPM,1,720 PSI ON,1,540 PSI OFF -10-25K WOB -8.7 PPG MW IN;8.7 PPG MW OUT -CALC CLEAN HOLE ECD:9.27 PPGE, ACTUAL:9.35 PPGE AST-4.48 HRS,ART-1.44 HRS,ADT-5.92 HRS 12:00 - 00:00 12.00 DRILL P PROD2 DRILL FROM 11,464'TO 11,987'MD(9,009' TVD) -PUW 243K;SOW 173K;ROT 207K -300 GPM,1,750 PSI ON,1,650 PSI OFF -50 RPM;9K TQ OFF;10K TQ ON -25K WOB -8.7 PPG MW IN;8.7 PPG MW OUT -CALC CLEAN HOLE ECD:9.27 PPGE, ACTUAL:9.34 PPGE AST-3.69 HRS,ART-2.46 HRS,ADT-6.15 HRS 9/15/2010 00:00 - 08:00 8.00 DRILL P PROD2 DRILL FROM 11,987'TO 12,234'MD(8,989' TVD) -PUW 245K;SOW 173K; ROT 207K -300 GPM,1,810 PSI ON,1,660 PSI OFF -50 RPM;8K TQ OFF;11K TQ ON -15-35K WOB -8.7 PPG MW IN;8.7 PPG MW OUT -CALC CLEAN HOLE ECD:9.27 PPGE, ACTUAL:9.34 PPGE AST-2.30 HRS,ART-1.91 HRS,ADT-4.21 HRS BIT TORQUING UP DECISION MADE TO POOH FOR NEW BIT 08:00 - 10:00 2.00 DRILL P PROD2 CBU -300 GPM,1,720 PSI -ROTATE AND RECIPROCATE 50 RPM -8.7 PPG MW IN;8.7 PPG MW OUT 10:00 - 10:15 0.25 DRILL P PROD2 FLOW CHECK -STATIC Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 7 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10:15 - 18:00 7.75 DRILL P PROD2 POOH FROM 12,234'TO 10,751'MD MAD PASS FROM 10,751'TO 10,440'MD POOH ON ELEVATORS FROM 10,440'TO 199' MD HELD UNANNOUNCED KICK DRILL DURING CREW CHANGE 18:00 - 23:00 5.00 DRILL P PROD2 PRE-JOB SAFETY MEETING ON NUCLEAR SOURCES RACK BACK 1 STD FLEX COLLARS REMOVE NUKES DOWNLOAD MWD RACK BACK MWD TOOLS LD MOTOR AND BIT -BIT GRADING:3-8-LT-G-16-SD-PR PU MOTOR AND BIT,ORIENT RIH W/MWD TOOLS FROM DERRICK PRE-JOB SAFETY MEETING ON NUCLEAR SOURCES LOAD NUKES RIH W/1 STD FLEX COLLARS 23:00 - 00:00 1.00 DRILL P PROD2 RIH W/4"DP FOR 311'TO 2,682' -FILL PIPE EVERY 25 STDS 9/16/2010 00:00 - 00:30 0.50 DRILL P PROD2 RIH WITH 4"DP FROM 2,683'TO 3,818'MD 00:30 - 03:15 2.75 DRILL P ® PROD2 CHANGE OUT ELEVATORS AND SLIPS TO 5" RIH WITH 5"DP FROM 3,818'TO 10,240'MD 03:15 - 03:30 0.25 DRILL P PROD2 PRE-JOB SAFETY MEETING ON SLIP AND CUT 03:30 - 05:00 1.50 DRILL P PROD2 CUT AND SLIP DRILLING LINE GREASE CROWN CALIBRATE DEPTH 05:00 06:00 1.00 DRILL P PROD2 RIH RI FROM EXIT IN OW 10,617'MD ORIENT TO EXIT WINDOW RIH FROM 10,617'TO 11,495' 06:00 - 09:00 3.00 DRILL P PROD2 REAM UNDERGAGE HOLE FROM 11,495'TO 12,234'MD -PUW 240K;SOW 170K;ROT 205K -300 GPM,1,780 PSI OFF -50 RPM;8K TQ OFF 09:00 - 12:00 3.00 DRILL P PROD2 DRILL FROM 12,234'TO 12,374'MD(8,978' TVD) -PUW 235K;SOW 175K;ROT 207K -300 GPM,1,960 PSI ON,1,780 PSI OFF -50 RPM;7K TQ OFF;10K TQ ON -15K WOB -8.7+PPG MW IN;8.7+PPG MW OUT -CALC CLEAN HOLE ECD:9.25 PPGE, ACTUAL:9.28 PPGE AST-0.92 HRS,ART-0.36 HRS,ADT-1.28 HRS Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 8 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project: Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P PROD2 DRILL FROM 12,374'TO 12,733'MD(8,923' TVD) -PUW 247K;SOW 170K;ROT 210K -300 GPM,2,170 PSI ON,1,880 PSI OFF -50 RPM;9K TQ OFF;11K TQ ON -15K WOB -8.7+PPG MW IN;8.7+PPG MW OUT -CALC CLEAN HOLE ECD:9.26 PPGE, ACTUAL:9.30 PPGE AST-4.93 HRS,ART-0.67 HRS,ADT-5.60 HRS 9/17/2010 00:00 - 06:30 6.50 DRILL P PROD2 DRILL FROM 12,733'TO 12,830'MD -PUW 247K;SOW 170K;ROT 210K -300 GPM,2,170 PSI ON,1,880 PSI OFF -50 RPM;9K TQ OFF;11K TQ ON -15K WOB -8.7 PPG MW IN;8.7+PPG MW OUT -CALC CLEAN HOLE ECD:9.26 PPGE, ACTUAL:9.38 PPGE AST-2.28 HRS,ART-1.76 HRS,ADT-4.04 HRS 06:30 - 11:00 4.50 DRILL P PROD2 ESTABLISH DOWN LINK. MAD PASS FROM TD AT 12,877'TO 12,530'MD -320 GPM,2,000 PSI - 40 RPM,9 TORQ -180 FPH FOR DATA DENSITY PER GEOLOGIST 11:00 - 16:00 5.00 DRILL P- PROD2 POOH FROM 12,530'TO 12,501' -RACKING BACK STANDS -8.7 PPG MW IN;8.7 PPG MW OUT POOH FROM 12,501'TO 8,000' -LD 5"DP SINGLES TO PIPESHED 16:00 - 21:00 5.00 DRILL N DFAL PROD2 POOH FROM 8,000'TO 4,000' -LD 5"DP SINGLES TO PIPESHED 21:00 - 22:00 1.00 DRILL N DFAL PROD2 RIH WITH 5"DP STANDS FROM DERRICK FROM 4,000'TO 5,600' 22:00 - 00:00 2.00 DRILL P PROD2 POOH FROM 5,600'TO 4,021' -LD 5"DP SINGLES TO PIPESHED 9/18/2010 00:00 - 00:30 0.50 DRILL P PROD2 POOH FROM 4,021' TO 3,820' -LD 5"DP SINGLES TO PIPESHED 00:30 - 01:00 0.50 DRILL P PROD2 CHANGE OUT 5"HANDLING EQUIPMENT TO 4" CHANGE OUT 5"TO 4"MUD BUCKET RUBBERS 01:00 - 03:00 2.00 DRILL P PROD2 POOH FROM 3,820'TO 311' -STRAP 4"DP IN DERRICK 03:00 - 03:30 0.50 DRILL P PROD2 CHANGE OUT 4"EQUIPMENT TO 3-1/2"FOR BHA STAND BACK HW DP&JARS PULL SOURCES 03:30 - 04:30 1.00 DRILL P PROD2 DOWNLOAD MWD 04:30 - 05:00 0.50 DRILL P PROD2 LD BHA BREAK BIT -BIT GRADING:2-3-LT-G-E-1-BT-TD 05:00 - 06:00 1.00 DRILL P PROD3 CLEAR RIG FLOOR OF BHA PU 5"MULE SHOE 06:00 - 12:00 6.00 DRILL N DFAL PROD3 PU 5"HANDLING EQUIPMENT RIH WITH 5"DP IN SINGLES TO 6,300'MD Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 9 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr (ft) 12:00 - 12:30 0.50 DRILL P ._ PROD3 SERVICE AND INSPECT TOP DRIVE, BLOCKS, &DRAWWORKS 12:30 - 13:30 1.00 DRILL N DFAL _ PROD3 RIH WITH 5"DP IN SINGLES FROM 6,300'TO 7,100' 13:30 - 14:00 0.50 DRILL N DFAL PROD3 CIRCULATE 1 PIPE VOLUME TO CLEAR DP OF DEBRIS -335 GPM,500 PSI -PUW-193K;SOW-160K -MW IN-8.6 PPG;MW OUT-8.6 PPG 14:00 - 17:00 3.00 DRILL N DFAL PROD3 MONITOR WELL CIRCULATE DRY JOB BLOW DOWN TOP DRIVE POOH WITH 5"DP FROM 7,100'TO 315'MD FUNCTION TEST 2-7/8"X 5"VBR,3-1/2"X 6" VBR,ANNULAR PREVENTER, HCR CHOKE, NCR KILL 17:00 - 17:30 0.50 DRILL P PROD3 PU BHA TOOLS TO RIG FLOOR 17:30 - 22:00 4.50 DRILL P PROD3 PRE-JOB SAFETY MEETING MU BHA#15 -PU MOTOR,BIT, FLOAT SUB,IBS,DM,SLIM PHASE 4,ALD,CTN,PWD,TM,COMMANDER PULSE TEST PRE-JOB SAFETY MEETING LOAD RADIOACTIVE SOURCES CHANGE OUT HANDLING EQUIP TO 4" PU FLEX COLLARS,HWDP,JARS 22:00 - 00:00 2.00 DRILL N DFAL PROD3 RIH WITH 4"DP SINGLES FROM 315'TO 1,737' 9/19/2010 00:00 - 01:00 1.00 DRILL ` P ® PROD3 RIH PICKING UP 4"DP SINGLES FROM 1,737' TO 2,211' 01:00 - 01:30 0.50 DRILL P PROD3 CIRCULATE 1 STRING VOLUME -5 BPM,800 PSI 01:30 - 02:45 1.25 DRILL P ®_ PROD3 RIH WITH 4"DP FROM 2,211'TO 5,718' -FILLING DP EVERY 2,000' 02:45 - 03:00 0.25 DRILL P PROD3 CHANGE OUT HANDLING EQUIPMENT TO 5" 03:00 - 04:00 1.00 DRILL N DFAL - PROD3 RIH WITH 5"DP SINGLES FROM 5,718'TO 7,100' -FILLING DP EVERY 2,000' 04:00 - 04:45 0.75 DRILL P ■- PROD3 RIH WITH 5"DP SINGLES FROM 7,100'TO 8,025' -FILLING DP EVERY 2,000' 04:45 - 05:15 0.50 DRILL P -_ PROD3 CIRCULATE 1 STRING VOLUME -5 BPM,1,250 PSI 05:15 - 06:30 1.25 DRILL P -_ PROD3 RIH WITH 5"DP FROM 8,025'TO 10,370'MD -FILLING DP EVERY 2,000' 06:30 - 07:30 1.00 DRILL P -_ PROD3 CUT&SLIP DRILLING LINE SERVICE TOP DRIVE&BLOCKS 07:30 - 09:00 1.50 DRILL P PROD3 RIH TO 10,541' MAD PASS TO 10,616' -300 GPM,1,680 PSI -180 FT/HR 09:00 - 09:30 0.50 DRILL P -_ PROD3 OBTAIN PWD BASELINE FOR MWD OBTAIN SPR AT WINDOW 09:30 - 10:30 1.00 DRILL P PROD3 RIH FROM 10,616'TO 12,366' 10:30 - 12:00 1.50 DRILL N DFAL PROD3 ATTEMPT TO BUILD TROUGH AT 12,420'MD UNABLE TO GET PROPPER TOOL FACE TROUBLE SHOOT MWD Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 10 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Firs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft 12:30 - 14:00 1.50 DRILL N DFAL PROD3 MONITOR WELL -STATIC • • POOH ON ELEVATORS FROM 12,420'TO 10,370'MD FLOW CHECK -STATIC 14:00 - 14:30 0.50 DRILL N DFAL PROD3 LINE UP TO CIRCULATE 'OPEN WELL COMMANDER -OPENED @ 1,900 PSI CIRCUALTE DRY JOB BLOW DOWN TOP DRIVE 14:30 - 19:30 5.00 DRILL N DFAL PROD3 POOH WITH 5"DP FROM 10,370'TO 5,718' CHANGE OUT HANDLING EQUIPMENT TO 4" POOH WITH 4"DP.FROM 5,718'TO 315' RACK BACK 1 STAND 4"HWDP,1 STAND FLEX DC 19:30 - 00:00 4.50 DRILL N DFAL PROD3 PU 4"PUP AND XO PRE-JOB SAFETY MEETING REMOVE RADIO-ACTIVE SOURCES DOWNLOAD MWD RACK BACK MWD TOOLS CHANGE OUT DM AND COLLAR SCRIBE MWD/MOTOR PREPARE CIRCULATING SUB -RETRIEVE 2 BALLS -TORQUE UP CIRCULATING SUB RU TO PULSE TEST MWD 9/20/2010 00:00 - 00:30 0.50 DRILL N DFAL PROD3 PULSE TEST MWD -GOOD TEST 00:30 - 01:00 0.50 DRILL N DFAL PROD3 PRE-JOB SAFETY MEETING ON LOADING SOURCES LOAD SOURCES INTO LWD CHANGE OUT 4"ELEVATOR'S TO 3-1/2" 01:00 - 01:30 0.50 DRILL N DFAL PROD3 MU FLEX COLLAR'S CHANGE OUT 3-1/2"ELEVATOR'S TO 4" MU JARS 01:30 - 03:45 2.25 DRILL N DFAL _ PROD3 RIH FROM 315'TO 5,718'MD -FILLING PIPE EVERY 2,000' 03:45 - 04:00 0.25 DRILL N DFAL - PROD3 CHANGE OUT HANDLING EQUIPMENT TO 5" 04:00 - 05:30 1.50 DRILL N DFAL PROD3 RIH WITH 5"DP FROM 5,718'TO 10,650'MD -FILLING DP EVERY 2,000' -BOTTOM OF 7-5/8"WINDOW 10,632'MD 05:30 - 05:45 0.25 DRILL N DFAL PROD3 OBTAIN SLOW PUMP RATES 05:45 - 07:30 1.75 DRILL N DFAL _ PROD3 RIH FROM 10,650'TO 12,424' -IN OPEN HOLE 07:30 - 18:00 10.50 DRILL P PROD3 BEGIN TO BUILD TROUGH @ 12,435'MD -PUW 240K;SOW 170K -330 GPM,2,000 PSI OFF -8.8 PPG MW IN;8.8 PPG MW OUT 18:00 - 20:45 2.75 DRILL P PROD3 OPEN HOLE SIDE TRACK TIME DRILL FROM 12,420 TO 12,548'MD -PUW 230K;SOW 165K -330 GPM,2,000 PSI OFF 20:45 - 23:30 2.75 DRILL P PROD3 OPEN HOLE SIDE TRACK TIME DRILL FROM 12,548 TO 12,568'MD -PUW 230K;SOW 165K -330 GPM,2,000 PSI OFF Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 11 of 15 Operation Summary Report Common Well Name:W-19 I AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-0OV1Z-C(1,729,774.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 00:00 0.50 DRILL P PROD3 OPEN HOLE SIDE TRACK TIME DRILL FROM 12,568 TO 12,572'MD -PUW 230K;SOW 165K -330 GPM,2,000 PSI OFF 9/21/2010 00:00 - 02:30 2.50 DRILL P PROD3 OPEN HOLE SIDE TRACK -TIME DRILL FROM 12,572 TO 12,575'MD -PUW 230K;SOW 165K -330 GPM,2,000 PSI OFF 02:30 - 12:00 9.50 DRILL P PROD3 DRILL FROM 12,575'TO 12,815'MD -PUW 235K;SOW 174K; ROT 200 -330 GPM,1,990 PSI ON,1,790 PSI OFF -50 RPM;6.5K TQ OFF;10.5K TQ ON -15K WOB -8.8 PPG MW IN;8.8 PPG MW OUT -CALC CLEAN HOLE ECD:9.42 PPGE, ACTUAL:9.44 PPGE AST:4.65 HRS;ART:0.40 HRS;ADT:5.05 HRS 12:00 - 00:00 12.00 DRILL P PROD3 DRILL FROM 12,815'TO 13,284'MD -PUW 240K;SOW 173K;ROT 206K -290 GPM,2,200 PSI ON,1,810 PSI OFF -50 RPM;8K TQ OFF;10.5K TQ ON -10K WOB 8.8 PPG MW IN;8.8 PPG MW OUT -CALC CLEAN HOLE ECD:9.46 PPGE, ACTUAL:9.48 PPGE CROSSED FAULT AT 12,974'MD AST:2.41 HRS;ART:2.68 HRS;ADT:5.09 HRS ADT FOR LAST 24 HRS: 10.14 HRS 9/22/2010 00:00 - 12:00 12.00 DRILL P PROD3 DRILL FROM 13,284'TO 13,860'MD -PUW 248K;SOW 174K;ROT 212K -290 GPM,2,500 PSI ON,1,840 PSI OFF -50 RPM;9K TQ OFF;12K TQ ON -12K WOB -8.9 PPG MW IN;8.9 PPG MW OUT -CALC CLEAN HOLE ECD:9.53 PPGE, ACTUAL:9.70 PPGE D1 KICK WHILE DRILLING DRILL AST:2.18 HRS;ART:2.48 HRS;ADT:4.66 HRS 12:00 - 15:00 3.00 DRILL P PROD3 r7Rll I FROM 13 860'TO 13 960'MiD -PUW 250K;SOW 174K;ROT 211K -295 GPM,2,400 PSI ON,1,890 PSI OFF -50 RPM;9K TQ OFF;12K TQ ON -10K WOB -8.9 PPG MW IN;8.9 PPG MW OUT 15:00 - 15:30 0.50 DRILL N WAIT PROD3 TROUBLESHOOT DATA TRANSMISSION PROBLEMS WITH MWD DETERMINED PROBLEM WAS DUE TO HALLIBUTRON NETWORK UPGRADE AND WAS NOT AFFECTING DATA QUALITY ON LOCATION Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 12 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:30 - 00:00 8.50 DRILL P PROD3 DRILL FROM 13,960'TO 14,316'MD -PUW 250K;SOW 169K;ROT 213K -325 GPM,2,350 PSI ON,2,010 PSI OFF -50 RPM;8K TQ OFF;10K TQ ON -10K WOB -8.8 PPG MW IN;8.8 PPG MW OUT -DUMP AND DILUTE MUD SYSTEM TO BRING WEIGHT DOWN -CALC CLEAN HOLE ECD:9.56 PPGE, ACTUAL:9.53 PPGE AST:2.59 HRS;ART:2.03 HRS;ADT:4.62 HRS ADT FOR LAST 24 HRS:9.28 HRS 9/23/2010 00:00 - 12:00 12.00 DRILL P PROD3 DRILL FROM 14,316'TO 14,701'MD -PUW 263K;SOW 170K;ROT 213K -324 GPM,2,500 PSI ON,2,050 PSI OFF -50 RPM;8K TQ OFF;12K TQ ON -8KWOB -8.8 PPG MW IN;8.8 PPG MW OUT -CALC CLEAN HOLE ECD:9.58 PPGE, ACTUAL:9.62 PPGE TD CALLED BY GEOLOGY TEAM AT 14,701' MD FIRE DRILL AST: 1.76 HRS;ART: 1.30 HRS;ADT:3.06 HRS 12:00 - 14:00 2.00 DRILL P PROD3 CIRCULATE BOTTOMS UP -325 GPM,2,000 PSI BLOW DOWN TOP DRIVE 14:00 - 16:00 2.00 DRILL P PROD3 FLOW CHECK WELL -NO FLOW POOH FROM 14,701'TO 12,651'MD -PULL ON ELEVATORS 16:00 - 16:30 0.50 DRILL P PROD3 LINE UP TOOLFACE TO HIGH SIDE WORK THROUGH OPEN HOLE SIDETRACK ONCE -FROM 12,651'TO 12,556'MD POOH ONE STAND BLOW DOWN TOP DRIVE 16:30 - 18:00 1.50 DRILL P PROD3 POOH FROM 12,556'TO 10,464'MD 8.9 PPG MW IN AND OUT D1 KICK WHILE TRIPPING DRILL / 18:00 - 20:00 2.00 DRILL P PROD3 PICK UP HALLIBURTON STORM PACKER RIH ON STAND OF DRILLPIPE AND SET PACKER 100'BELOW ROTARY TABLE RIG UP AND TEST PACKER FROM ABOVE TO 250 PSI FOR 5 MINUTES INCREASE PRESSURE AND TEST PACKER FROM ABOPVE TO 1,000 PSI FOR 10 MINUTES -BOTH TESTS CHARTED -GOOD TEST 20:00 - 22:00 2.00 WHSUB P PROD3 PULL WEAR BUSHING INSTALL TEST PLUG RIG UP TO TEST BOPE EQUIPMENT Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 13 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 BOPSUR P PROD3 BEGIN BOPE TEST -FUNCTION TEST RIG GAS ALARMS -TEST 2-7/8"X 5"VBR WITH 4"TEST JOINT TO 250 PSI LOW,3,500 PSI HIGH FOR 5 MINUTES EACH TEST WITNESSED BY DOYON TP TOM SHONES,WSL FRANK ROACH,AND AOGCC INSPECTOR JOHN CRISP Pe TROUBLESHOOT LEAK IN SYSTEM 61.13'� -ISOLATE LEAK TO AIRED UP MUD IN STACK -DRAIN BOP STACK AND CHOKE MANIFOLD, FILL UP WITH WATER FOR TEST 9/24/2010 00:00 - 07:30 7.50 BOPSUR P PROD3 TEST BOP EQUIPMENT PER BP/AOGCC REGULATIONS -TEST EQUIPMENT WITH EXCEPTION OF ANNULAR TO 250 PSI LOW/3,500 PSI HIGH FOR 5 MINUTES EACH -TEST ANNULAR TO 250 PSI LOW/2,500 PSI HIGH FOR 5 MINUTES EACH -CHART EACH TEST -CHOKE MANIFOLD VALVES 1-14 IBOP AND MANUAL IBOP IN TOP DRIVE . -CHOKE AND KILL MANUAL VALVES • -CHOKE AND KILL HCR -4"HT-38 TIW AND DART VALVE -4-1/2"IF TIW AND DART VALVE -3-1/2"IF TIW AND DART VALVE -BLIND/SHEAR RAMS -TEST 2-7/8"X 5"UPPER VBR WITH 2-7/8",4" AND 5"TEST JOINTS -TEST 3-1/2"X 6"LOWER VBR WITH 4"AND 5" TEST JOINTS -TEST ANNULAR WITH 2-7/8"AND 5"TEST JOINTS -PERFORM ACCUMULATOR TEST -TEST SUPERCHOKE AND MANUAL CHOKE TO 1,000 PSI TO CONFIRM RESTRICTING FLOW TEST WITNESSED BY DOYON TPS TOM SHONES AND BOBBY INGRAM,WSLS FRANK ROACH AND BLAIR NEUFELD,AND AOGCC REP JOHN CRISP 07:30 - 08:00 0.50 WHSUR P PROD3 PULL TEST PLUG AND INSTALL WEAR BUSHING BLOW DOWN TOP DRIVE,CHOKE MANIFOLD, CHOKE,AND KILL LINES Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 14 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 08:30 0.50 DRILL P PROD3 MAKE UP STORM PACKER RUNNING TOOL RIH ON ONE STAND OF DRILLPIPE,ENGAGE, AND RELEASE STORM PACKER LINE UP ON TRIP TANK AND BEGIN TO PULL PACKER TO SURFACE -OBSERVE 20K EXCESS DRAG WHEN PULLING STORM PACKER TO SURFACE -TAKE 3 BBL PIT GAIN(SWABBING) -LOST 18 BBLS WHEN PACKER ENTERED BOP STACK ELEMENT HAD ROLLED TO CAUSE THE EXCESS DRAG AND SEAL TO GAIN FLUID PULL STORM PACKER TO SURFACE 08:30 - 09:30 1.00 DRILL P PROD3 CIRCULATE 100 BBLS -6.8 BPM,1,560 PSI FLOW CHECK WELL -WELL STATIC LAY DOWN STORM PACKER AND RUNNING EQUIPMENT 09:30 - 10:30 1.00 DRILL P PROD3 CONTINUE WITH CIRCULATION AND CIRCULATE BOTTOMS-UP -6.8 BPM,1,610 PSI -30 RPM,TQ 5K 10:30 - 14:00 3.50 DRILL P PROD3 PERFORM 10 MIN FLOW CHECK -WELL STATIC RIH FROM 10,464'TO 14,701'MD -STOP AT 12,655'MD AND CONFIRM IN CORRECT WELLBORE WITH MWD -8.8 PPG MUD WT IN AND OUT D1 KICK WHILE TRIPPING DRILL 14:00 - 00:00 10.00 DRILL P PROD3 MAD PASS FROM 14,701'TO 13,031'MD -300-140 FPH PER MWD FOR DATA COLLECTION QUALITY -310 GPM,1,970 PSI -30-40 RPM,8-10K TQ D1 BOP DRILL 9/25/2010 00:00 - 18:30 18.50 DRILL P PROD3 MAD PASS FROM 13,031'TO 10,640'MD -300-140 FPH PER MWD FOR DATA COLLECTION QUALITY -310 GPM,1,980 PSI -40 RPM,5K TQ -INDICATIONS OF PACKING OFF AT 11,110' MD -RIH TO 11,245'AND BACKREAM THROUGH AREA AGAIN-NO ISSUES 18:30 - 19:00 0.50 DRILL P PROD3 PULL BIT THROUGH WINDOW WITHOUT PUMPS OR ROTATION TO 10,590'MD -NO PROBLEMS PULLING THROUGH WINDOW DROP WELL COMMANDER OPENING BALL AND PUMP DOWN -305 GPM,1,780 PSI INITIAL -84 GPM,460 PSI TO LAND BALL ON SEAT -TOOL FUNCTIONED AT 2,300 PSI -305 GPM,740 PSI WITH TOOL OPEN Printed 12/17/2010 2:18:56PM North America -ALASKA- BP Page 15 of 15 Operation Summary Report Common Well Name:W-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/30/2010 End Date: X3-00V1Z-C(1,729,774.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 20:30 1.50 DRILL P PROD3 PUMP OUT OF HOLE UNTIL WELL COMMANDER IS AT LINER TOP CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE DRILL STRING -610 GPM,1,820 PSI -40 RPM,5K TQ 20:30 - 22:30 2.00 DRILL P PROD3 SLIP AND CUT DRILLING LINE BLOW DOWN GEOSPAN SKID AND REMOVE FROM RIG FLOOR SPILL DRILL 22:30 - 00:00 1.50 DRILL P PROD3 POOH FROM 10,350'TO 8,185'MD 8.8 PPG MUD WT IN AND OUT FLUID LOST OVER LAST 24 HRS:86 BBLS FLUID LOST TO LATERAL: 157 BBLS 9/26/2010 00:00 - 01:00 1.00 DRILL P PROD3 POOH FROM 8,185'TO 5,738'MD -8.8 PPG MUD WT IN AND OUT 01:00 - 01:30 0.50 DRILL P PROD3 CHANGE ELEVATORS AND MUD BUCKET ELEMENTS TO 4"FOR PULLING 4"DRILLPIPE 01:30 - 03:30 2.00 DRILL P PROD3 POOH FROM 5,738'TO 316'MD -8.8 PPG MUD WT IN AND OUT -DROP WELL COMMANDER CLOSING BALL AT 800'TO CLOSE CIRC VALVE -CIRC VALVE CYCLED CLOSED AT 2,390 PSI 03:30 - 06:00 2.50 DRILL P PROD3 RACK BACK STAND WITH HWDP,JARS, HWDP LAY DOWN BHA -REMOVE RADIOACTIVE SOURCES FROM MWD TOOLS -DOWNLOAD MWD 06:00 - 07:30 1.50 DRILL P PROD3 BREAK BIT AND LAY DOWN BHA CLEAN AND CLEAR RIG FLOOR BIT GRADE: 1-2-CT-G-X-I-NO-TD END RON EVENT FOR W-19BL1 Printed 12/17/2010 2:18:55PM North America -ALASKA- BP Page 1 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) - Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 9/26/2010 07:30 - 08:00 0.50 FISH P RUNPRD MOBILIZE BACKER WHIPSTOCK RETRIEVAL EQUIPMENT TO RIG FLOOR 08:00 - 09:00 1.00 FISH P RUNPRD MAKE UP WHIPSTOCK RETRIEVAL ASSEMBLY PER BAKER FISHING AS FOLLOWS(FROM BOTTOM TO TOP): -WHIPSTOCK RETRIEVAL HOOK -FLOAT SUB -FLEX COLLAR -BUMPER SUB H.OIL JAR CROSSOVER SUB 4 JOINTS 4"HWDP TOTAL BHA LENGTH:212.89' 09:00 - 12:00 3.00 FISH P RUNPRD RIH FROM 213'TO 5,615 MD FILL PIPE EVERY 2,500' -8.8 PPG MUD WT IN AND OUT 12:00 - 12:30 0.50 FISH P RUNPRD LUBRICATE RIG 12:30 - 14:30 2.00 FISH P RUNPRD RIH FROM 5,615'TO TOP OF WINDOW AT 10,619'MD -FILL PIPE EVERY 2,500' -8.8 MUD WT IN AND OUT 14:30 - 15:30 1.00 FISH P RUNPRD [OBTAIN FISHING PARAMETERS -PUW 223K,SOW 180K 250 GPM,1,160 PSI WASH DOWN TO WHIPSTOCK RETRIEVING SLOT -LATCHED UP ON FIRST ATTEMPT SLACKED OFF 10K ON SLOT,THEN PICKED UP 30K OVER TO 250K ON HOOK TO CONFIRM LATCH-UP PULL TO 270K AND LET JARS FIRE. INCREASE PULL TO 310K RESET JARS PULL TO 290K AND LET JARS FIRE. INCREASE PULL TO 320K -REPEAT 6 TIMES UNTIL WHIPSTOCK PULLED FREE FLOW CHECK WELL -NO FLOW 15:30 - 16:00 0.50 FISH P RUNPRD PULL WHIPSTOCK TO TOP OF LINER AT 10,379'MD FLOW CHECK WELL -NO FLOW PUMP DRY JOB 16:00 - 18:00 2.00 FISH P RUNPRD POOH WITH WHIPSTOCK FROM 10,379'TO 7,130' -DRILLERS TRIP SHEET NOT MATCHING PIT WATCHERS TRIP SHEET FLOW CHECK WELL -SLIGHT FLOW OBSERVED AT SURFACE Printed 12/17/2010 2:19.57PM North America -ALASKA- BP Page 2 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:00 - 19:00 1.00 FISH P RUNPRD LINE UP TO CIRCULATE AND BEGIN TO PUMP A BOTTOMS-UP VOLUME -IMMEDIATELY OBSERVE 1BBL GAIN SHUT DOWN AND FLOW CHECK FOR 10 MINUTES -WELL FLOWING CLOSE ANNULAR TO SHUT IN WELL AND OBSERVE DRILLPIPE AND ANNULAR PRESSURES -DRILLPIPE AND ANNULAR PRESSURES READ ZERO RECALCULATE SURFACE AND HOLE VOLUMES -VOLUMES WERE BALANCED. OPEN CHOKE MANIFOLD TO GAS BUSTER AND MONITOR FOR FLOW AT SHAKERS -NO FLOW -DRILLPIPE AND ANNULAR PRESSURES READ ZERO OPEN ANNULAR AND LINE UP TO CIRCULATE SURFACE-TO-SURFACE 19:00 - 21:00 2.00 FISH P RUNPRD CIRCULATE SURFACE-TO-SURFACE VOLUME -297 GPM,1,620 PSI 10 MINUTE FLOW CHECK OF WELL AT END OF CIRCULATION -OBSERVE SLIGHT LOSS 21:00 - 22:00 1.00 FISH P RUNPRD POOH WITH WHIPSTOCK FROM 7,130'TO 5,617'MD -8.8 PPG MUD WT IN AND OUT 22:00 - 22:30 0.50 FISH P RUNPRD CHANGE OVER TO 4"HANDLING EQUIPMENT 22:30 - 00:00 1.50 FISH P RUNPRD POOH WITH WHIPSTOCK FROM 5,617'TO 3,531'MD -8.8 PPG MUD WT IN AND OUT 9/27/2010 00:00 - 02:00 2.00 FISH P RUNPRD POOH FROM 3,516'TO 213'MD -8.8 PPG MUD WT IN AND OUT 02:00 - 03:00 1.00 FISH P RUNPRD LAY DOWN WHIPSTOCK RETRIEVAL BHA AND WHIPSTOCK -STAND BACK STAND OF HWDP,LAY DOWN REST OF BHA 03:00 - 05:00 2.00 FISH P RUNPRD LAY DOWN WHIPSTOCK,MAGNETS,TRIP ANCHOR AND HWDP BELOW WHIPSTOCK CLEAN AND CLEAR RIG FLOOR 05:00 - 08:00 3.00 CASING P RUNPRD RIG UP TO RUN 4-1/2"LATERAL PRODUCTION LINER 08:00 - 16:00 8.00 CASING P RUNPRD MAKE UP 4-1/2"12.6#,13CR-85,VAM TOP LATERAL PRODUCTION LINER TO 4,033' -CHECK FLOATS AFTER MAKING UP SHOETRACK PLUS ONE JOINT. FLOATS HELD -FILL LINER EVERY JOINT -TWO CENTRALIZERS PER JOINT -5 SWELL PACKERS -ONE BAKER EXTERNAL CASING PACKER (ECP) -ONE TORQUE-THROUGH CASING SWIVEL 16:00 - 17:00 1.00 CASING P RUNPRD RIG UP FALSE FLOOR AND 2-7/8"HANDLING EQUIPMENT RUN 3 JTS 2-7/8"6.4#FOX TUBING AS INNER STRING RIG DOWN 2-7/8"HANDLING EQUIPMENT AND FALSE FLOOR Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 3 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) IProject:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 18:30 1.50 CASING P RUNPRD MAKE UP HOOK HANGER ASSEMBLY A ND FORST STAND OF 4"DRILLPIPE ESTABLISH LINER PARAMETERS -PUW: 101K,SOW 99K TOTAL LINER LENGTH:4064.95' 18:30 - 20:00 1.50 CASING P RUNPRD CIRCULATE THROUGH LINER WHILE LAYING DOWN LINER RUNNING EQUIPMENT AND RIGGING UP TO RUN 4"DRILLPIPE -SURFACE TO SURFACE VOLUME -135 GPM,180 PSI 20:00 - 00:00 4.00 CASING P RUNPRD RIH WITH 4-1/2"LINER ON 4"DRILLPIPE TO ■ -FILL MD -FILL PIPE EVERY 10 STANDS 9/28/2010 00:00 - 02:00 2.00 CASING P RUNPRD RIH WITH 4-1/2"LATERAL PRODUCTION LINER ON 5"X4"DRILLPIPE FROM 8,810'TO 10,613'MD -FILL PIPE EVERY 10 STANDS -8.9 PPG MUD WT IN AND OUT 02:00 - 03:30 1.50 CASING P .RUNPRD CIRCULATE BOTTOMS UP ■ -STAGE PUMPS UP TO 6 BPM,610 PSI -PUW 188K,SOW 150K 03:30 - 04:30 1.00 CASING P RUNPRD WORK SHOE INTO WINDOW -TAG ON SAND AT 10,696' -PICK UP AND ROTATE 1/4 TURN, PICK UP ABOVE WINDOW,RIH,TAG AGAIN -REPEAT PROCESS(PICK UP,ROTATE 1/4 TURN,PICK UP ABOVE WINDOW,RIH) WITHOUT SUCCESS -PICK UP AND ROTATE 1/8 TURN, PICK UP ABOVE WINDOW,RIH,TAG AGAIN -REPEAT INITIAL PROCESS(PICK UP, ROTATE 1/4 TURN, PICK UP ABOVE WINDOW, RIH),ABLE TO WORK THROUGH ON 7TH ATTEMPT 04:30 - 08:00 3.50 CASING P RUNPRD RIH WITH 4-1/2"LATERAL PRODUCTION LINER ON 5"X4"DRILLPIPE FROM 10,613'TO 14,505'MD -FILL PIPE EVERY 10 STANDS 08:00 - 10:30 2.50 CASING P RUNPRD SCREW IN TOP DRIVE WASH DOWN FROM 14,505'TO 14,691'MD ATTEMPT TO HOOK HANGER AT 10,632' DOWN TO 10,635' -UNABLE TO FIND WINDOW -PICK UP,ROTATE 1/4 TURNS AND RIH 2-3' PAST CALCULATED BOTTOM OF WINDOW TO FIND WINDOW WITH HOOK HANGER -REPEAT PROCESS 18 TIMES UNTIL WINDOW FOUND REPEATEDLY AT 10,642'MD 10:30 - 11:00 0.50 CEMT P -_ RUNPRD BLOW DOWN TOP DRIVE RIG UP CEMENT HEAD TO DRILLPIPE 11:00 - 12:00 1.00 CEMT P RUNPRD CIRCULATE AND CONDITION HOLE -NO RECIPROCATION -3 BPM,830 PSI SPILL DRILL Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 4 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 17:30 5.50 CEMT N WAIT 14,691.00 RUNPRD STAGE UP PUMP WHILE WAITING ON ORDERS FROM TOWN -ATTEMPT TO CONFIRM HOOK ON ORDERS FROM TOWN.OBSERVE 25K OVERPULL WHEN PICKING UP. DECIDED TO ABANDON ATTEMPT. -5 BPM,1,200 PSI -HOLD PJSM WITH RIG CREW, SCHLUMBERGER CEMENT CREW,AND BAKER PERSONNEL Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 5 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) - Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:30 - 20:00 2.50 CEMT P RUNPRD CEMENT 4-1/2"LINER WITHOUT _RECIPROCATION AS FOLLOWS: 16:20 START BATCH MIXING 15.8 PPG G CEMENT 17:30 START BATCH MIXING 11.5 PPG MUD PUSH II 17:45 CEMENT BATCHED TO WEIGHT 17:56 STOP CIRCULATING.LINE UP SLB CEMENTERS TO WELL. FLOOD LINES TO BOTTOM TIW ON CEMENTHEAD WITH MUD PUSH II 17:57 TEST LINES TO 4,550 PSI-GOOD 18:01 PUMP 30 BBL 11.5 PPG MUD PUSH II AT 3.7 BPM,830 PSI 18:11 PUMP 103 BBL 15.8 PPG TAIL CEMENT AWAY AT 5 BPM -15.8 PPG CLASS G WITH GASBLOK AND 35% SILICA -5 BPM,700 PSI TREATING PRESSURE 18:33 STOP PUMPING CEMENT 18:44 DROP DART 18:45 BEGIN DISPLACEMENT WITH RIG PUMPS DISPLACE WITH 8.5 PPG FLO PRO MUD -FIRST 120 BBLS POWER VIS PERF PLUG -5 BPM,50 PSI(SURFACE FRICTION) 19:03 CATCH UP TO CEMENT. DROP RATE TO 5 BPM,580 PSI 19:10 SLOW PUMP RATE TO 3 BPM,1,250 PSI AT 1,350 STROKES 19:12 OBSERVED PLUG LATCH 1,404 STKS INTO DISPLACEMENT -INCREASED PUMP RATE BACK TO 5 BPM, 1,730 PSI AND CLIMBING(LIFTING CEMENT) 19:25 DROP RATE TO 4 BPM,THEN 3 BPM, 1,400PSI IN PREPARATION FOR PLUG BUMP 19:27 PLUG BUMP AT 1,985 STKS BUMPED PLUG WITH 1,870 PSI PRESSURE BLEED OFF PRESSURE AND CHECK FLOATS -FLOATS HOLDING 19:30 PRESSURE UP TO INFLATE ECP -PRESSURE UP INITIALLY TO 2,200 PSI, THEN INCREASE TO 2,500 PSI. BLED DOWN TO 2,310 PSI -PRESSURE UP TO 2,600 PSI. BLED DOWN TO 2,550 PSI -PRESSURE UP TO 2,800 PSI.BLED DOWN TO 2,740 PSI -PRESSURE UP TO 3,000 PSI.BLED DOWN TO 2,950 PSI. ECP INFLATED AND LOCKED 19:37 PRESSURE UP TO 4,000 TO RELEASE RUNNING TOOL FROM HOOK HANGER -BLEED PRESSURE TO 0 19:38 PRESSURE UP TO 1,000 PSI. HOLD PRESSURE WHILE PICKING UP TO CONFIRM RELEASED FROM HOOK HANGER -PRESSURE DROPPED AFTER PICKING UP 5',CONFIRMED RUNNING TOOL RELEASED FROM HOOK HANGER FULL RETURNS THROUGHOUT JOB EMEN LACE AT 19:27 Printed 12/17/2010 2:19:57PM ,North America -ALASKA- BP Page 6 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description • ••e - - (hr) (ft) • PUMPED 103 BBLS 15.8 CLASS G WITH 35% (BWOC)SILICA,375.5 SKS AT 1.54 CUFT/SK 20:00 - 21:00 1.00 CEMT P RUNPRD CIRCULATE BOTTOMS-UP — :PM,1,581 -DIVE' D FLOW TO ROCK WASHER AT BOTTOMS-UP TO DISPOSE OF MUD PUSH AND RECOVERED CEMENT -RECOVERED 260 BBLS MUDPUSH AND CEMENT CONTAMINATED MUD INDICATED BY WEIGHT AND PH INCREASE 21:00 - 21:30 0.50 CEMT P RUNPRD LAY DOWN CEMENT HEAD AND ONE DRILLPIPE JOINT 21:30 - 22:00 0.50 CEMT P RUNPRD INCREASE PUMP RATE TO 9 BPM,1,000 PSI PULL 2-7/8"INNER STRING OUT OF THE LATERAL PRODUCTION LINER INCREASE RATE TO 13 BPM,1,580 PSI WORK INNER STRING BETWEEN TOP OF HOOK HANGER AT 10,617'AND 10,664'MD TWICE TURN OFF PUMPS, RIH AND TAG TOP OF SAND AT 10,682'MD WASH DOWN 5'TO 10,687'MD 22:00 - 23:30 1.50 CEMT P RUNPRD CIRCULATE BOTTOMS-UP -13 BPM,1,560 PSI -RECIPROCATE STRING BETWEEN 10,617' AND 10,664'MD -NO INDICATION OF CEMENT AT SURFACE AT BOTTOMS UP 23:30 - 00:00 0.50 CEMT P RUNPRD MIX AND SPOT BIOZAN PILL ON TOP OF SAND AT 10,687'MD -DISPLACE AT 7 BPM,670 PSI 9/29/2010 00:00 - 00:30 0.50 CEMT P RUNPRD SERVICE RIG 00:30 - 01:00 0.50 CEMT P RUNPRD POOH FROM 10,600'TO 10,000'MD D1 KICK WHILE TRIPPING DRILL 01:00 - 02:30 1.50 CEMT P RUNPRD SLIP AND CUT DRILLING LINE SERVICE BLOCKS AND TOP DRIVE 02:30 - 08:00 5.50 CEMT P RUNPRD POOH FROM 10,000'MD TO SURFACE -9.0 PPG MUD WT IN AND OUT -CEMENT OBSERVED ON RUNNING TOOL AND LAST 14 STANDS OF DRILLPIPE 08:00 - 09:30 1.50 CEMT P RUNPRD LAY DOWN LINER RUNNING ASSEMBLY CLEAN AND CLEAR RIG FLOOR Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 7 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr (ft) 09:30 - 12:30 3.00 DHB N DPRB 10,380.00 OTHCMP PICKUP AND MAKE UP BAKER SCRAPER/DRIFT ASSEMBLY AS FOLLOWS: -MULESHOE PUP -6-5/8"WATERMELLON MILL -4-3/4"STRING MAGNET -BUMPER SUB -JARS CROSSOVER -2 STDS 4"DRILLPIPE -CROSSOVER -DOUBLE-PIN SUB -9-5/8"CASING SCRAPER -2X 7"BOOT BASKET -BIT SUB -CROSSOVER SUB TOTAL BHA LENGTH:251.6' 12:30 - 17:30 5.00 DHB N DPRB 10,380.00 OTHCMP RIH WITH SCRAPER/DRIFT BHA ON 5"X 4" DRILLPIPE FROM SURFACE TO TOP OF 7-5/8" LINER AT 10,378'MD -9.0 PPG MUD WT IN AND OUT D1 KICK WHILE TRIPPING DRILL 17:30 - 18:30 1.00 DHB N DPRB 10,380.00 OTHCMP STING INTO LINER TOP WITH BULL NOSE AND WATERMELLON MILL TAG 7-5/8"LINER TOP AT 10,378'WITH 9-5/8" CASING SCRAPER -BULLNOSE AT 10,609'MD 118:30 - 21:00 2.50 DHB N DPRB 10,380.00 OTHCMP ESTABLISH PARAMETERS -PUW 225K,SOW 173K BACKREAM OUT OF HOLE UNTIL MULESHOE IS ABOVE 7-5/8"LINER TOP STAGE UP PUMPS TO 10 BPM,1,040 PSI -20 RPM,5-7K TQ -ENSURE ONE BOTTOMS-UP VOLUME IS CIRCULATED BEFORE MULESHOE EXITS LINER TOP -PH INCREASE IN RETURNS AT BOTTOMS-UP WHEN MULESHOE IS ABOVE LINER TOP, INCREASE RATE TO 17 BPM,2,110 PSI -40 RPM,3-5K TQ -ROTATE AND RECIPROCATE FULL STAND -AFTER SECOND BOTTOMS-UP, DROP RPM DOWN TO 20 RPM 21:00 - 00:00 3.00 DHB N DPRB 10,380.00 OTHCMP POOH FROM 10,380'TO 5,400'MD 9.0 PPG MUD WT IN AND OUT 9/30/2010 00:00 - 02:00 2.00 DHB N DPRB 10,380.00 OTHCMP POOH FROM 5,400'TO 252'MD 02:00 - 03:00 1.00 DHB N DPRB 10,380.00 OTHCMP LAY DOWN SCRAPER/DRIFT BHA -SMALL AMOUNT OF CEMENT OBERVED IN SCRAPER INSERTS -RECOVERED 2 LBS CEMENT AND SAND DEBRIS IN UPPER BOOT BASKET(LOWER BOOT BASKET EMPTY) -RECOVERED 3 LBS METAL ON STRING MAGNET 03:00 - 04:30 1.50 DHB P -_ OTHCMP CLEAN AND CLEAR RIG FLOOR MOBILIZE RCJB BHA TO RIG FLOOR Printed 12/17/2010 2:19:57PM North America-ALASKA- BP Page 8 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) ft 04:30 - 07:00 2.50 DHB P OTHCMP MAKE UP RCJB BHA PER BAKER FISHING AS FOLLOWS: -4-1/2"JET BASKET -CROSSOVER SUB -4 JTS 2-7/8"PAC PIPE -CROSSOVER -DOUBLE PIN SUB -2X 4-3/4"BOOT BASKET -BIT SUB -STRING MAGNET -BUMPER SUB -JARS -CROSSOVER TOTAL BHA LENGTH: 185.19' HELD UNANNOUNCED KICK DRILL WHILE MAKING UP BHA -HELD AAR AFTER DRILL WAS COMPLETE 07:00 - 09:30 2.50 DHB P ® OTHCMP RIH ON 4"DRILLPIPE FROM 185'TO 5,589'MD -9.0 PPG MUD WT IN AND OUT 09:30 - 11:30 2.00 DHB P' OTHCMP CHANGE ELEVATORS FROM 4"TO 5" RIH ON 5"DRILLPIPE FROM 5,589'TO 10,619' MD -9.0 PPG MUD WT IN AND OUT -DID NOT SEE TOP OF 7-5/8"LINER AT 10,378' MD 11:30 - 12:00 0.50 DHB P OTHCMP SCREW INTO TOP DRIVE AND OBTAIN PARAMETERS -PUW 223K,SOW 175K -2 BPM,490 PSI RIH AND TAG TOP OF SAND AT 10,687'MD 12:00 - 15:00 3.00 DHB P OTHCMP OBTAIN PARAMETERS -PUW 223K,SOW 175K,ROT 202K -40 RPM,5-6K TQ TAG TOP OF SAND AT 10,687'MD DRY DRILL FROM 10,687'TO 10,690'MD.JET FROM 10,690'TO 10,692'MD.DRY DRILL FROM 10,692'TO 10,695'MD -1-4K WOB -6-7K TQ AT 40 RPM -5 BPM,1,520 PSI,STAGING UP TO 7 BPM, 2,320 PSI -TORQUE INCREASING AT 10,695'.JET BASKET HUNG UP 15:00 - 15:30 0.50 DHB P OTHCMP SLACK OF TO 160K TO SET JARS PICK UP TO 230K AND TO SET OFF JARS RESET JARS AND REPEAT 10 MORE TIMES, STAGING UP TO 260K PUW -WORK JARS WITH PUMPS ON AND OFF -STRING FREE AFTER 10TH TRY PUMP SWEEP TO CLEAN DEBRIS FROM JET BASKET X LINER ANNULUS 15:30 - 16:00 0.50 DHB P OTHCMP JET DOWN WITH SAME PARAMETERS FROM 10,695'TO 10,696'MD DRY DRILL TO 10,697'MD -JET BASKET HUNG UP AGAIN.JAR FREE JET DOWN TO 10,707'MD -JET BASKET HUNG UP AGAIN.JAR FREE Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 9 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 17:30 1.50 DHB P OTHCMP FINISH CIRCULATING SWEEP OUT OF HOLE -ROTATE AND RECIPROCATE DRILL STRING -7 BPM,2,320 PSI -40 RPM,6K TQ -SOME SAND OBSERVED WITH SWEEP AT SURFACE FLOW CHECK WELL NO FLOW PUMP DRY JOB 17:30 - 20:30 3.00 DHB P OTHCMP POOH WITH 5"DRILLPIPE FROM 10,707'TO 5,580'MD -9.0 PPG MUD WT IN AND OUT HELD FIRE DRILL 20:30 - 23:00 2.50 DHB P OTHCMP CHANGE ELEVATORS FROM 5"TO 4" POOH WITH 4"DRILLPIPE FROM 5,580'TO 185'MD -9.0 PPG MUD WT IN AND OUT 23:00 - 00:00 1.00 DHB P OTHCMP LAY DOWN BHA -RECOVERED 2 LBS METAL SHAVINGS FROM STRING MAGNETS 10/1/2010 00:00 - 00:30 0.50 DHB P OTHCMP CONTINUE TO LAY DOWN RCJB BHA -BASKET WAS PACKED OFF DOWN TO 8" ABOVE SHOE -RECOVERED 50 LBS SAND,2-3 LBS METAL AND LARGE METAL DEBRIS IN BASKET 00:30 - 02:00 1.50 DHB P OTHCMP MAKE UP RCJB BHA PER BAKER FISHING AS FOLLOWS: -4-1/2"JET BASKET -CROSSOVER SUB -PUMP OUT SUB -4 JTS 2-7/8"PAC PIPE -CROSSOVER -DOUBLE PIN SUB -2X 4-3/4"BOOT BASKET -BIT SUB -STRING MAGNET -BUMPER SUB -JARS -CROSSOVER TOTAL BHA LENGTH: 183.11' 02:00 - 04:30 2.50 DHB P OTHCMP RIH ON 4"DRILLPIPE FROM 183'TO 5,580'MD -9.0 PPG MUD WT IN AND OUT CHANGE ELEVATORS FROM 4"TO 5" RIH ON 5"DRILLPIPE FROM 5,580'TO 5,700' MD 04:30 - 06:00 1.50 DHB P OTHCMP SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE,CROWN,AND BLOCKS 06:00 - 08:00 2.00 DHB P OTHCMP RIH FROM 5,700'TO 10,600'MD -STOP ABOVE HOOK HANGER AT 10,619'MD -9.00 PPG MUD WT IN AND OUT 08:00 - 09:00 1.00 DHB P OTHCMP RUN THROUGH HOOK HANGER AND TAG TOP OF SAND AT 10 709'MD -TAG WITH PUMPS OFF PICK UP 5 AND JET DOWN TO 10,720'MD -7 BPM,2,400 PSI PICK UP ABOVE HOOK HANGER TO 10,600' MD Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 10 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) • Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 11:00 2.00 DHB P OTHCMP DROP 7/8"BALL TO OPEN PUMP-OUT SUB PUMP SWEEP DOWNHOLE -5 BPM,1,350 PSI PRESSURED UP WITH BALL ON SEAT TO 2,400 PSI -PUMP-OUT SUB DID NOT OPEN -1,800 PSI OPENING PRESSURE STAGE UP PUMP TO 3,900 PSI AND BLEED OFF -REPEAT PROCESS MULTIPLE TIMES WITHOUT SUCCESS ATTEMPTED TO REVSRSE CIRCULATE WITHOUT SUCCESS REPEATED PRESSURE UP/BLEED OFF PROCESS WITH NO SUCCESS -MINIMAL RETURNS AT SURFACE WHEN PRESSURING UP DRILLPIPE DROP 1-1/4"BALL AND PRESSURE UP WHEN ON SEAT -PUMP-OUT SUB OPENED UP AT 2,400 PSI 11:00 - 12:00 1.00 DHB P OTHCMP CIRC SWEEP OUT PLUS ONE BOTTOMS-UP VOLUME -14 BPM,2,940 PSI -ROTATED AND RECIPROCATED STRING -10 RPM,5K TQ HELD SPILL DRILL 12:00 - 14:30 2.50 DHB P OTHCMP FLOW CHECK WELL -NO FLOW POOH ON 5"DRILLPIPE FROM 10,600'TO 5,580'MD -9.0 PPG MUD WT IN AND OUT 14:30 - 17:30 3.00 DHB P OTHCMP CHANGE ELEVATORS FROM 5"TO 4" POOH ON 4"DRILLPIPE FROM 5,580'TO 183' MD -9.0 PPG MUD WT IN AND OUT D1 KICK WHILE TRIPPING DRILL 17:30 - 19:00 1.50 DHB P OTHCMP LAY DOWN BHA -RECOVERED 5 LBS FINE METAL SHAVINGS ON STRING MAGNET -BOOT BASKETS AND JET BASKET WERE EMPTY 19:00 - 19:30 0.50 DHB P OTHCMP CLEAR RIG FLOOR MOBILIZE RBP RETRIEVAL BHA TO RIG FLOOR 19:30 - 20:30 1.00 DHB P OTHCMP LUBRICATE RIG PERFORM WEEKLY DERRICK INSPECTION 20:30 - 22:30 2.00 DHB P OTHCMP MAKE UP RBP RETRIEVAL BHA PER BAKER FISHING AS FOLLOWS: -MODEL M RETRIEVING HEAD -CROSSOVER -1 JT 2-7/8"PAC PIPE -PUMP-OUT SUB -3 JTS 2-7/8"PAC PIPE -CROSSOVER -STRING MAGNET -BUMPER SUB -JARS -CROSSOVER TOTAL BHA LENGTH: 163.35' Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 11 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 DHB P OTHCMP RIH ON 4"DRILLPIPE FROM 163'TO 4,523'MD -9.0 PPG MUD WT IN AND OUT 10/2/2010 00:00 - 00:30 0.50 DHB P OTHCMP RIH ON 4"DRILLPIPE FROM 4,583'TO 5,567' MD -9.0 PPG MUD WT IN AND OUT 00:30 - 03:00 2.50 DHB P OTHCMP CHANGE ELEVATORS FROM 4"TO 5" RIH ON 5"DRILLPIPE FROM 5,567'TO 10,692' MD -9.0 PPG MUD WT IN AND OUT 03:00 - 04:00 1.00 DHB P OTHCMP BREAK APART STAND 112 MAKE UP SINGLE AND RIH TO 10,720'MD MAKE UP SINGLE WITH HEAD PIN,SWIVEL, AND CEMENT HOSE SPOT RETRIEVING HEAD AT 10,720'MD 04:00 - 04:30 0.50 DHB P OTHCMP SPOT HIGH VISCOSITY PILL ON BACKSIDE OF BHA -7 BPM,910 PSI. 04:30 - 06:00 1.50 DHB P OTHCMP LINE UP TO REVERSE CIRCULATE REVERSE CIRCULATE AND SPOT RETRIEVING HEAD ABOVE RBP -1.5 BPM,330 PSI -OBSERVE PRESSURE INCREASE AT 10,727' MD(RBP 1'DEEP ON DRILLPIPE STRAP) PARK DRILL STRING AND INCREASE RATE -6 BPM,1,100 PSI -SAND OBSERVED OVER SHAKERS AT BOTTOMS-UP 06:00 - 08:00 2.00 DHB P OTHCMP REVERSE CIRCULATE WHILE SLACKING OFF TO ENGAGE FISH NECK ON RBP -2.5 BPM,480 PSI LATCH ONTO RBP AND RELEASE SAME -NO GAIN OR LOSS OBSERVED AFTER RBP RELEASED ALLOW ELEMENTS TO RELAX FOR 10 MINUTES PULL RBP OUT OF 5-1/2"LINER INTO 7-5/8" LINER AT 10,692'MD 08:00 - 09:30 1.50 DHB P OTHCMP DROP BALL TO OPEN PUMP-OUT SUB -TOOL FUNCTIONED AT 3,300 PSI CIRCULATE BOTTOMS UP -RECIPROCATE DRILL STRING WITH 30' STROKES -15 BPM,3,080 PSI HELD UNANNOUNCED D1 KICK DRILL -AAR AFTER DRILL 09:30 - 14:30 5.00 DHB P OTHCMP POOH ON 5"DRILLPIPE FROM 10692'TO 5,400'MD -9.0 PPG MUD WT IN AND OUT 14:30 - 17:30 3.00 DHB P OTHCMP CHANGE ELEVATORS FROM 5"TO 4" POOH ON 4"DRILLPIPE FROM 5,400'TO 165' MD -9.0 PPG MUD WT IN AND OUT 17:30 - 19:00 1.50 DHB P OTHCMP LAY DOWN BHA AND RBP -RBP MISSING 1 HALF ELEMENT SPILL DRILL 19:00 - 19:30 0.50 DHB P OTHCMP DEMOB RETRIEVAL TOOLS AND RBP FROM RIG FLOOR MOB LATERAL DIVERTER BHA TO RIG FLOOR Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 12 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations ,/ (hr) (ft) 0 ~ 19:30 - 20:30 1.00 PERFOB P OTHCMP MAKE UP HOOK HANGER LATERAL nIY.Ef3.TFFQ3HA PER BAKERFTSFIING AS FOLLOWS: 0 -"B"HOOK HANGER LATERAL DIVERTER -"GS"HYDRAULIC SPEAR -CROSSOVER 2 -3-1/2"DRILLPIPE PUP / -4-3/4"STRING MAGNET � -BUMPER SUB (/ -PUMP-OUT SUB -CROSSOVER TOTAL BHA LENGTH:51.34' 20:30 - 00:00 3.50 PERFOB P OTHCMP RIH ON 4"DRILLPIPE FROM 51'TO 5455'MD 9.0 PPG MUD WT IN AND OUT 10/3/2010 00:00 - 03:00 3.00 PERFOB P OTHCMP CHANGE ELEVATORS FROM 4"TO 5" RIH ON 5"DRILLPIPE FROM 5,455'TO 10,580' -9.0 PPG MUD WT IN AND OUT 03:00 - 03:30 0.50 PERFOB P OTHCMP SCREW INTO TOP DRIVE OBTAIN PARAMETERS -PUW 252K,SOW 168K RIH SLOW AND TAG HOOK HANGER TOP AT 10,617'MD -SET DOWN 5K PICK UP 20',RIH SLOW AND TAG HOOK HANGER AGAIN AT 10,617'MD -SET DOWN 7K PICK UP 20', RIH SLOW AND TAG HOOK HANGER AGAIN AT 10,617' -SET DOWN 10K. -OBSERVE BOUNCE ON WEIGHT INDICATOR INDICATING DIVERTER ORIENTED AND LATCHED INTO HOOK HANGER PICK UP 8K OVER TO 260K -CONFIRMATION DIVERTER LATCHED INTO HOOK HANGER CONTINUE TO PICK UP TO 265K -WEIGHT DROPPED OFF TO 250K, INDICATING DIVERTER RELEASED PICK UP 20',RIH SLOW AND TAG HOOK HANGER AGAIN AT 10,617'MD -SET DOWN 10K PICK UP 8K OVER TO 260K -DIVERTER LATCHED INTO HOOK HANGER 03:30 - 04:00 0.50 PERFOB P OTHCMP SLACK OFF TO NEUTRAL AND SET 7K ON DtrERTER LEM /•/1 y/ PUMP DOWN DRILLPIP AND ESTABLISH CIRCULATING PARAMETERS -1.5 BPM,500 PSI PICK UP 6'UNTIL PUW REACHED 250K -DIVERTER NOT RELEASED FROM RUNNING TOOL RIH TO NEUTRAL AND SET 10K ON DIVERTER INCREASE PUMP RATE TO 2.0 BPM,730 PSI PICK UP SLOW WITH PUW HOLDING AT 245K -CONTINUE SLOW PULL RATE 54'TO 10,580' 04:00 - 04:30 0.50 PERFOB P OTHCMP FLOW CHECK WELL -NO FLOW POOH ON 5"DRILLPIPE FROM 10,580'TO 9,630'MD -9.0 PPG MUD WT IN AND OUT Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 13 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:30 - 06:30 2.00 PERFOB P OTHCMP SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE,BLOCKS,AND CROWN 06:30 - 08:30 2.00 PERFOB P OTHCMP POOH ON 5"DRILLPIPE FROM 9,630'TO 5,453' MD -9.0 PPG MUD WT IN AND OUT 08:30 - 11:30 3.00 PERFOB P OTHCMP CHANGE ELEVATORS FROM 5"TO 4" POOH FROM 5,453'TO 51'MD -9.0 PPG MUD WT IN AND OUT FIRE DRILL 11:30 - 12:30 1.00 PERFOB P OTHCMP LAY DOWN DIVERTER RUNNING BHA CLEAN AND CLEAR RIG FLOOR 12:30 - 14:00 1.50 PERFOB P OTHCMP RIG UP TO RUN PERF GUNS 14:00 - 17:00 3.00 PERFOB P OTHCMP MAKE UP 2-7/8"PERF GUN ASSEMBLY TO 2,141'MD MAKE UP FIRING HEAD AND DISCONNECT WITH CROSSOVER TO 2-7/8"FOX TUBING -TOTAL PERF GUN LENGTH:2,158.40' HELD D1 KICK DRILL WHILE MAKING UP PERF GUNS -HELD AAR AFTER DRILL TO DISCUSS NEW PROCEDURE 17:00 - 18:30 1.50 PERFOB P OTHCMP RIG UP TO RUN 2-7/8"FOX TUBING -MOB TORQUE TURN EQUIPMENT TO RIG FLOOR 18:30 - 21:30 3.00 PERFOB P OTHCMP RIH WITH PERF GUN ASSEMBLY ON 2-7/8" FOX TUBING FROM 2,158'TO 4,044'MD 21:30 - 22:00 0.50 PERFOB P OTHCMP RIG DOWN TORQUE TURN EQUIPMENT RIG UP TO RUN 4"DRILLPIPE 22:00 - 00:00 2.00 PERFOB P OTHCMP RIH ON 4"DRILLPIPE FROM 4,044'TO 7,928' MD -9.0 PPG MUD WT IN AND OUT 10/4/2010 00:00 - 00:30 0.50 PERFOB P OTHCMP SERVICE RIG 00:30 - 01:30 1.00 PERFOB P OTHCMP RIH ON 4"DRILLPIPE FROM 7,928'TO 9,466' MD -9.0 PPG MUD WT IN AND OUT 01:30 - 02:00 0.50 PERFOB P OTHCMP CHANGE ELEVATORS FROM 4"TO 5" RIH ON 5"DRILLPIPE FROM 9,404'TO 10,585' MD -9.0 PPG MUD WT IN AND OUT 02:00 - 03:00 1.00 PERFOB P OTHCMP OBTAIN PARAMETERS BEFORE ENTERING HOOK HANGER -PUW 195K,SOW 137K EASE NOSE INTO HOOK HANGER/DIVERTER ASSEMBLY AT 10,616'MD NO-GOAT 10,631'MD -SET 5K DOWN PICK UP AND WORK PIPE,WORKING DOWN WEIGHT UP TO 20K OVER 4 ATTEMPTS -NO FORWARD PROGRESS PICK UP ABOVE DIVERTER,ROTATE 1/4 TURN AT SURFACE RIH AND SET DOWN AT 10,631'MD -NO GO WITH 20K DOWN Printed 12/17/2010 2:19.57PM North America-ALASKA- BP Page 14 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 04:00 1.00 PERFOB N WAIT 10,645.00 OTHCMP CONSULT WITH SLOPE-BASED SCHLUMBERGER TCP AND BAKER COMPLETION CONSULT WITH TOWN ENGINEER AND OPS TEAM LEAD AGREE TO INCREASE DOWN WEIGHT TO 30K 04:00 - 04:30 0.50 PERFOB P OTHCMP RIH AND TAG AT 10,631' INCREASE DOWN WT TO 27K BEFORE FREE MOVEMENT DOWN RIH TO BOTTOM OF STAND AT 10,680'MD ESTABLISH PARAMETERS -PUW 190K,SOW 137K 04:30 - 07:00 2.50 PERFOB P OTHCMP RIH ON 5"DRILLPIPE FROM 10680'TO 14,598' MD -9.0 PPG MUD WT IN AND OUT -TAGGED LANDING COLLAR TO CONFIRM TD 07:00 - 08:00 1.00 PERFOB P OTHCMP OBTAIN PARAMETERS -PUW 270K,SOW 160K SET PERF GUNS ON DEPTH AT 14,570'MD BREAK CIRCULATION AND STAG UP PUMPS -3 BPM,900 PSI DROP BALL AND PUMP DOWN AT 3 BPM,900 PSI GUNS FIRED AT 1,340 PSI -FLUID LEVEL DROPPED BELOW STACK HEIGHT PERFORATED 7 INTERVALS,TOTALLING 1,720' -PERFORATED USING 2-7/8"TCP POWERJET 2096,4 SPF,60 DEG PHASING 08:00 - 09:30 1.50 PERFOB P OTHCMP FLOW CHECK WELL -4 BBL/HR POOH FROM 14,570'TO 12,388'MD -9.0 PPG MUD WT IN AND OUT -POSITION GUNS ABOVE TOP PERF 09:30 - 11:30 2.00 PERFOB P OTHCMP CIRCULATE BOTTOMS-UP -7 BPM,1,850 PSI -RECIPROCATE PIPE FULL STAND -PUW 210K,SOW 155K 11:30 - 13:00 1.50 PERFOB P OTHCMP FLOW CHECK WELL -NO FLOW POOH FROM 12,388'TO 9,400'MD -9.0 PPG MUD WT IN AND OUT 13:00 - 14:00 1.00 PERFOB P OTHCMP CHANGE ELEVATORS FROM 5"TO 4" -WELL STATIC POOH FROM 9,400'TO 8,120' -9.0 PPG MUD WT IN AND OUT 14:00 - 19:30 5.50 PERFOB P OTHCMP POOH, LAYING DOWN 4"DRILLPIPE FROM 8,120'TO 4,041'MD 9.0 PPG MUD WT IN AND OUT 19:30 - 20:00 0.50 PERFOB P OTHCMP RIG UP 2-7/8"HANDLING EQUIPMENT 20:00 - 22:00 2.00 PERFOB P OTHCMP POOH, LAYING DOWN 2-7/8"7.8#FOX TUBING FROM 4,041'TO 2,158'MD -9.0 PPG MUD WT IN AND OUT 22:00 - 23:00 1.00 PERFOB P OTHCMP RIG DOWN DOUBLE STACK TONGS RIG UP POWER TONGS AND HANDLING EQUIPMENT FOR 2-7/8"PERF GUNS 23:00 - 00:00 1.00 PERFOB P OTHCMP POOH FROM 2,158 TO 1,700'MD -9.0 PPG MUD WT IN AND OUT Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 15 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/5/2010 00:00 - 03:00 3.00 PERFOB P OTHCMP POOH, LAYING DOWN PERF GUNS FROM 1,700'TO SURFACE -9.0 PPG MUD WT IN AND OUT ALL GUNS FIRED 03:00 - 04:00 1.00 PERFOB P OTHCMP CLEAN AND CLEAR RIG FLOOR LD 2-7/8"HANDLING EQUIPMENT MOBILIZE DIVERTER RETRIEVAL BHA COMPONENTS TO RIG FLOOR 04:00 - 04:30 0.50 PERFOB P OTHCMP MAKE UP DIVERTER RETRIEVAL BHA PER BAKER REP AS FOLLOWS: -"GS"HYDRAULIC SPEAR -CROSSOVER -3-1/2"DRILLPIPE PUP -4-3/4"STRING MAGNET -BUMPER SUB -PUMP-OUT SUB -CROSSOVER TOTAL BHA LENGTH:33.88' 04:30 - 05:30 1.00 PERFOB P OTHCMP RIH ON 4"DRILLPIPE FROM 34'TO 1,326'MD -9.0 PPG MUD WT IN AND OUT 05:30 - 09:30 4.00 PERFOB P OTHCMP C/O ELEVATORS&AIR SLIP INSERTS. RIH W/5"DP FROM 1,326'TO 9,527'MD 09:30 - 11:00 1.50 PERFOB P OTHCMP PRE-JOB SAFETY MEETING CUT&SLIP DRLG LINE. SERVICE TOP DRIVE. CALIBRATE DEPTH. PERFORM AAR 11:00 - 12:00 1.00 PERFOB P OTHCMP RIH FROM 9,527'TO 10,566'MD 12:00 - 13:30 1.50 PERFOB P OTHCMP CIRCULATE DOWN TO DIVERTER @ 10,617' MD -PU-280K; SO-180K -84 GPM,680 PSI TURN OFF PUMP, ENGAGE DIVERTER,PULL 16K OVER TO FREE. AFTER P/U 45'+-ENCOUNTER 20K OVER PULL. RAN DIVERTER BACK INTO LATERAL AND REENGAGE AND DISENGAGE TO CONFIRM DIVERTER STILL IN PLACE. DIVERTER DID NOT DISENGAGE WITH 14K OVERPULL AS EXPECTED. HAD TO P/U TO 40K OVER AND SLACK OFF TO DOWN WEIGHT 4-5 TIMES TO GET DIVERTER FREE.WHILE PULLING DIVERTER TO 7.625 LINER TOP OVER PULL OF 20K WAS ENCOUNTERED SEVERAL TIMES SUGGESTING JUNK IN THE HOLE. 13:30 - 14:00 0.50 PERFOB P OTHCMP DROP DART TO OPEN CIR SUB. WAIT 15 MIN. -CIRCULATE 42 GPM TO OPEN CIR SUB, DART ON SEAT BEFORE BRINGING PUMPS ON LINE -OPENED WITH 2,300PSI. FLOW CHECK -STATIC CIRCULATE DRY JOB. 14:00 - 19:30 5.50 PERFOB P OTHCMP POOH ON ELEVATORS FROM 10,617'TO 112' -9.0 PPG MUD WT IN AND OUT Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 16 of 25 Operation Summary Report t Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:30 - 22:00 2.50 PERFOB P ■- OTHCMP BHA -DIVERTER DIVERTER NOT ATTACHED TO GS SPEAR. WAIT ON ORDERS. 22:00 - 23:00 1.00 PERFOB N DFAL OTHCMP LD GS SPEAR ASSEMBLY PU SPEAR ASSEMBLY TO RIG FLOOR. LOAD DC IN PIPE SHED. 23:00 - 00:00 1.00 PERFOB N DFAL - OTHCMP MU SPEAR BHA 10/6/2010 00:00 - 01:00 1.00 PERFOB N DFAL OTHCMP MU SPEAR WITH GRAPPLE BHA PU 4"HWDP 01:00 - 01:30 0.50 PERFOB N DFAL OTHCMP RIH WITH 4"DP TO 1,528'MD 01:30 - 05:00 3.50 PERFOB N DFAL OTHCMP CHANGE OUT ELEVATORS RIH WITH 5"DP FROM 1,528'TO 10,378'MD 05:00 - 06:00 1.00 PERFOB N DFAL OTHCMP WASH DOWN FROM 10,378'TO 10,610' -342 GPM,930 PSI 06:00 - 07:00 1.00 PERFOB N DFAL OTHCMP CIRCULATE HIGH VISC SWEEP SURFACE TO SURFACE -514 GPM,1,890 PSI RECIP PIPE WHILE CIRCULATING -PUW-252K; SOW-190K 07:00 - 08:00 1.00 PERFOB N DFAL OTHCMP SLACK OFF INTO FISH. -PUW-250K;SOW-196K - 210 GPM,490 PSI SET 15K ON NO GO @ 10,620'MD PUMPS OFF. PU ON DIVERTER. CAME LOOSE WITH 30K OVERPULL. PULL TO 10,590'MD 08:00 - 09:00 1.00 PERFOB N DFAL OTHCMP POOH W/5"DP FROM 10,590'TO 9,695'MD -STRAPPING OUT OF HOLE PUMP DRY JOB. 09:00 - 15:00 6.00 PERFOB N DFAL OTHCMP POOH W/5"DP SLM FROM 9,695'TO 4,566' MD -STRAPPING OUT OF HOLE 15:00 - 16:00 1.00 PERFOB P OTHCMP LD DIVERTER AND SPEAR ASSEMBLY. LD BHA -MARKINGS ON DIVERTER HELIX FROM TIP OF HOOK HANGER -MARKINGS ON SLIDE FROM PERF GUN'S BULL NOSE -FOUND TIP OF HOOK HANGER HELIX ON BOTTOM OF MAGNET 16:00 - 17:00 1.00 PERFOB P -_ OTHCMP CLEAR RIG FLOOR PU CLEAN OUT BHA TO RIG FLOOR. 17:00 - 20:00 3.00 PERFOB N DPRB OTHCMP MU CLEAN OUT BHA. -REVERSE CIRCULATING JUNK BASKET -2-7/8"PUMP OUT SUB -2-7/8"COLLARS -STRING MAGNET -STRING MILL -2 BOOT BASKETS -OIL JAR -5JTS4"HWDP -STOP SUB WITH 8-1/16"STOP RING 20:00 - 21:30 1.50 PERFOB P -_ OTHCMP SLIP AND CUT DRILLING LINE. SERVICE TOP DRIVE AND CROWN 21:30 - 22•00 0.50 PERFOB N DPRB OTHCMP MU BHA CIRCULATE THROUGH BHA TO CLEAR ANY SCALE. -233 GPM,580 PSI Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 17 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 PERFOB N DPRB OTHCMP RIH TO 3,600'MD 10/7/2010 00:00 - 03:30 3.50 PERFOB N DPRB OTHCMP RIH FROM 3.600'TO 10,178'MD 03:30 - 04:00 0.50 PERFOB N OTHCMP DROP ACTIVATION BALL FOR REVERSE CIRCULATING JUNK BASKETS ACTIVATE REVERSE CIRCULATING JUNK BASKETS 04:00 - 06:00 2.00 PERFOB N DPRB OTHCMP RIH TO TOP OF 7-5/8"LINER AT 10,378'MD WASH DOWN THROUGH 7-5/8"LINER,HOOK HANGER,5-1/2"LINER,AND 17'INTO SEAL BORE EXTENSION -300 GPM,2,470 PSI -PUW-240K;SOW-187K(PUMPS ON) NO-GO WITH BOTTOM OF RCJB AT 10,757' MD 06:00 - 07:00 1.00 PERFOB N DPRB OTHCMP CIRCULATE 80 BBLS -210 GPM,1,420 PSI DROP BALL TO OPEN 2-7/8"PUMP OUT SUB SPOT 20 BBL OF CLEAN MUD FOLLOWED BY 35 BBL CITRIC ACID PILL ON BOTTOM, RECIPROCATE PIPE FOR 5 MINUTES 07:00 - 07:30 0.50 PERFOB N DPRB OTHCMP PULL UP TO 10,726' RECIPROCATE AND ROTATE TO AGITATE PILL -RECIPROCATE BETWEEN 10,726'AND 10,736' -20 RPM,9K TQ OFF 07:30 - 08:00 0.50 PERFOB N DPRB OTHCMP PUMP OUT FROM 10,757'TO 10,534'MD -504 GPM,1,810 PSI ROTATE AND RECIPROCATE 30'WHILE CIRCULATING 100 BBLS -504 GPM,1,810 PSI -20 RPM,9K TQ OFF 08:00 - 09:00 1.00 PERFOB N DPRB OTHCMP RIH TO 10,756' SPOT 20 BBLS CLEAN MUD ON BOTTOM -420 GPM,1,280 PSI. 09:00 - 09:30 0.50 PERFOB N DPRB OTHCMP DROP DART,OPEN 4.75"PUMP OUT SUB PUMP OUT OF HOLE FROM 10,756'TO 10,534' ROTATE AND RECIPROCATE 4-3/4"PUMP OUT SUB PORTS ACROSS 7-5/8"LINER TOP -714 GPM,1,840 PSI -20 RPM, 5 MIN PER STAND 09:30 - 10:00 0.50 PERFOB N DPRB OTHCMP CBU -840 GPM,2,250 PSI -ROTATE AND RECIPROCATE AT 20 RPM FROM 10,525'TO 10,550' 10:00 - 11:00 1.00 PERFOB N DPRB OTHCMP RIH TO 10,756' SPOT 55 BBLS CLEAN MUD ON BOTTOM -420 GPM,840 PSI. FLOW CHECK 10 MIN. -STATIC MUD WEIGHT IN/OUT-9.1 PPG 11:00 - 17:00 6.00 PERFOB N DPRB OTHCMP POOH ON ELEVATORS FROM 10,756'TO 9,870'MD CIRCULATE DRY JOB. BLOW DOWN TOP DRIVE. POOH ON ELEVATORS FROM 9,870'TO 381' MD 17:00 - 19:30 2.50 PERFOB N DPRB OTHCMP LD BHA Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 18 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 jX3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.:DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft 19:30 - 20:30 1.00 PERFOB N DPRB - OTHCMP CLEAR RIG FLOOR 20:30 - 21:30 1.00 TIEBAC P ■- OTHCMP PU TORQUE TURN EQUIPMENT AND LEM RIG ASSEMBLY TO RIG FLOOR RIG UP TO RUN LEM ASSEMBLY 21:30 - 22:00 0.50 TIEBAC P OTHCMP PERFORM AAR ON LAYING DOWN CLEAN OUT BHA PERFORM PRE-JOB SAFETY MEETING ON LEM ASSEMBLY 22:00 - 00:00 2.00 TIEBAC P OTHCMP MU LEM ASSEMBLY SCRIBE LEM TO MWD 10/8/2010 00:00 - 02:00 2.00 TIEBAC P . OTHCMP MU LEM ASSEMBLY ORIENT WITH MWD 02:00 - 02:30 0.50 TIEBAC N DFAL OTHCMP SHALLOW TEST MWD -100 GPM,210 PSI -140 GPM,330 PSI -NO READINGS FROM MWD 02:30 - 04:30 2.00 TIEBAC N DFAL OTHCMP RIH TO 1,180'MD SHALLOW TEST MWD -100 GPM,210 PSI 140 GPM,330 PSI -NO READINGS FROM MWD DECREASE PULSATION DAMPNERS TO 600 PSI NO READINGS FROM MWD DECREASE PULSATION DAMPNERS TO 400 PSI -NO READINGS FROM MWD ISOLATE PUMPS -NO READINGS FROM MWD 04:30 - 05:30 1.00 TIEBAC N DFAL OTHCMP RIH FROM 1,180'TO2,810'MD SHALLOW TEST MWD -140 GPM,330 PSI -UNABLE TO DECODE MWD DECREASE PULSATION DAMPNERS TO 200 PSI -UNABLE TO DECODE MWD 05:30 - 06:30 1.00 TIEBAC N DFAL OTHCMP POOH WITH 5"DP FROM 2,810'TO 1,557'MD CHANGE OUT ELEVATORS AND MUD BUCKET RUBBERS 06:30 - 07:30 1.00 TIEBAC N DFAL - OTHCMP POOH WITH 4"DP FROM 1,557 TO 231'MD 07:30 - 09:30 2.00 TIEBAC N DFAL OTHCMP PRE-JOB SAFETY MEETING LD SINGLE DP BREAK OFF PACKER LD MWD 09:30 - 11:30 2.00 TIEBAC N DFAL OTHCMP PU&MU MWD&CROSSOVERS ORIENT TO LEM PU 1 JT DP SHALLOW TEST MWD -110 GPM,340 PSI 11:30 - 12:30 1.00 TIEBAC P -_ OTHCMP RIH WITH LEM ON 4"DP TO 1,550'MD -AT CONTROLLED RATE 12:30 - 19:00 6.50 TIEBAC P -_ OTHCMP CHANGE OUT ELEVATORS RIH WITH 5"DP FROM 1,550'TO 10,617'MD Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 19 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 20:00 1.00 TIEBAC N DFAL OTHCMP RIH TO 10,680'MD ESTABLISH PARAMETERS: CIRCULATE AT 120 GPM WITH PUMP#1 ISOLATED -PULSATION DAMPNER AT 800 PSI -POOR SIGNAL FROM MWD CIRCULATE AT 130 GPM WITH PUMP#1 ISOLATED -PULSATION DAMPNER AT 800 PSI -POOR SIGNAL FROM MWD CIRCULATE AT 120 GPM WITH PUMP#2 ISOLATED -PULSATION DAMPNER AT 400 PSI -POOR SIGNAL FROM MWD CIRCULATE AT 130 GPM WITH PUMP#2 ISOLATED -PULSATION DAMPNER AT 400 PSI -POOR SIGNAL FROM MWD CIRCULATE AT 110 GPM WITH PUMP#2 It ISOLATED -PULSATION DAMPNER AT 400 PSI -POOR SIGNAL FROM MWD BLEED PULSATION DAMNER ON PUMP#2 TO 300 PSI CIRCULATE AT 110 GPM WITH PUMP#2 ISOLATED -PULSATION DAMPNER AT 300 PSI -POOR SIGNAL FROM MWD CIRCULATE AT 120 GPM WITH PUMP#2 ISOLATED -PULSATION DAMPNER AT 300 PSI -GOOD SIGNAL FROM MWD ROTATE TO 120 DEG RIGHT 20:00 - 20:15 0.25 TIEBAC P OTHCMP BREAK CIRCULATION WASH DOWN TO TOP OF 5-1/2"LINER AT 10,692'MD WASH INTO TOP OF 5-1/2"LINER TO 10,700' -PRESSURE SPIKED TO 1,400 PSI(STRING PACKED OFF) BLEED PRESSURE OFF ATTEMPT TO CIRCULATE STILL PACKED OFF PULL OUT OF TOP OF LINER AND ATTEMPT TO RE-ESTABLISH CIRCULATION -UNABLE TO CIRCULATE OVER 42 GPM,400 PSI 20:15 - 20:30 0.25 TIEBAC N DPRB OTHCMP RU TO REVERSE CIRCULATE REVERSE CIRCULATE AT 84 GPM,500 PSI 20:30 - 21:00 0.50 TIEBAC N DPRB OTHCMP RU TO CIRCULATE LONG WAY ATTEMPT TO CIRCULATE -PRESSURE SPIKED TO 1,400 PSI(STRING PACKED OFF) 21:00 - 22:00 1.00 TIEBAC N DPRB OTHCMP POOH TO 10,196'MD. -PREPARE TO HANG OFF ASSEMBLY FOR UPCOMING BOPE TEST 22:00 - 22:30 0.50 TIEBAC N DPRB OTHCMP TOOL-BOX MEETING WITH HES HAND PU RTTS TOOL TO RIG FLOOR 22:30 - 23:00 0.50 TIEBAC N DPRB OTHCMP RIH WTH STRING ON RTTS TOOL SET RTTS STORM PACKER AT 95'MD. UNSTING FROM RTTS AND STAND BACK STAND STAND#106. Printed 12/17/2010 2:19:57PM North America-ALASKA- BP Page 20 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI: 500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:00 - 23:15 0.25 TIEBAC N DPRB OTHCMP RU TO TEST RTTS TEST RTTS TOOL FROM ABOVE TO 2,000 PSI FOR 10 MINUTES. -TEST LOST 25 PSI IN 10 MINUTES -GOOD TEST. RD TEST EQUIPMENT 23:15 - 23:45 0.50 TIEBAC P OTHCMP PUMP OUT STACK RU AND PULL WEAR BUSHING RU TO TEST BOPE. 23:45 - 00:00 0.25 TIEBAC P OTHCMP BEGIN BOPE TEST DRAW DOWN ACCUMULATOR TEST 200 PSI DIFFERENTIAL=33 SEC FINAL=161 SEC 4 BOTTLES AT 2,200 PSI boe TEST WITNESSED BY DOYON TP TOM SHONES,WSL ZACH SAYERS&MITCH SKINNER AOGCC WITNESS WAIVED BY INSPECTOR BOB NOBLE 10/9/2010 00:00 - 07:00 7.00 TIEBAC P OTHCMP TEST BOP EQUIPMENT PER BP/AOGCC REGULATIONS -TEST EQUIPMENT WITH EXCEPTION OF ANNULAR TO 250 PSI LOW/3,500 PSI HIGH FOR 5 MINUTES EACH -TEST ANNULAR TO 250 PSI LOW/2,500 PSI HIGH FOR 5 MINUTES EACH -CHART EACH TEST -CHOKE MANIFOLD VALVES 1-14 -IBOP AND MANUAL IBOP IN TOP DRIVE • -CHOKE AND KILL MANUAL VALVES -CHOKE AND KILL HCR -3-1/2"IF TIW AND DART VALVE -4"HT-38 TIW AND DART VALVE -4-1/2"IF TIW AND DART VALVE -BLIND/SHEAR RAMS -TEST 2-7/8"X 5"UPPER VBR WITH 2-7/8",4" AND 5"TEST JOINTS -TEST 3-1/2"X 6"LOWER VBR WITH 4"AND 5" TEST JOINTS -TEST ANNULAR PREVENTOR WITH 4"TEST JOINT TEST WITNESSED BY DOYON TP TOM SHONES,WSL ZACH SAYERS&MITCH SKINNER AOGCC WITNESS WAIVED BY INSPECTOR BOB NOBLE 07:00 - 07:30 0.50 TIEBAC P OTHCMP RD TEST EQUIPMENT PULL TEST PLUG 07:30 - 08:00 0.50 TIEBAC N DPRB OTHCMP INSTALL WEAR BUSHING 08:00 - 08:15 0.25 TIEBAC N DPRB OTHCMP PERFORM AAR PRE-JOB SAFETY MEETING 08:15 - 08:30 0.25 TIEBAC N DPRB OTHCMP MU STORM PACKER RUNNING TOOL RELEASE STORM PACKER PULL STORM PACKER TO FLOOR LD STORM PACKER 08:30 - 09:00 0.50 TIEBAC N DPRB OTHCMP ATTEMPT TO CIRCULATE DOWN DP -NO SUCCESS 09:00 - 09:30 0.50 TIEBAC N DPRB OTHCMP POOH 5 STANDS RIH 5 STANDS Printed 12/17/2010 2:19:57PM 1 North America -ALASKA- BP Page 21 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project:Prudhoe Bay Site:PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor:DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B©86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:30 - 10:00 0.50 TIEBAC N DPRB OTHCMP ATTEMPT TO CIRCULATE DOWN DP -NO SUCCESS 10:00 - 16:30 6.50 TIEBAC N DPRB OTHCMP BLOW DOWN TOP DRIVE POOH FROM 10,196'TO 300'MD MONITOR WELL VIA TRIP TANK 16:30 - 22:30 6.00 TIEBAC N DPRB OTHCMP ANALYZE INNER STRING FOR PACKOFF -RUBBER FROM MWD CENTRALIZER FOUND IN NOZZLE OF THE 2-3/8"BULL NOSE 22:30 - 00:00 1.50 TIEBAC N DPRB OTHCMP CLEAN AND CLEAR RIG FLOOR IN PREPERATION FOR MU OF LEM#1 RUN#3 10/10/2010 00:00 - 00:30 0.50 TIEBAC N DPRB OTHCMP CIRCULATE THROUGH 2-3/8"TUBING TO VERIFY UN-RESTRICTED FLOW -120 GPM,80 PSI -TUBING CLEAR OF ANY OBSTRUCTIONS 00:30 - 02:45 2.25 TIEBAC N DPRB OTHCMP MU INNER STRING AND MWD FOR LEM#1 RUN#3 SCRIBE MWD AND LEM MU PACKER AND RUNNING TOOL 02:45 - 03:15 0.50 TIEBAC N DFAL OTHCMP SHALLOW TEST MWD -100 GPM,210 PSI -UNABLE TO RECEIVE SIGNAL FROM MWD 03:15 - 03:30 0.25 TIEBAC N DFAL OTHCMP RIH TO 1,583'MD 03:30 - 04:45 1.25 TIEBAC N DFAL OTHCMP SHALLOW TEST MWD -UNABLE TO RECEIVE SIGNAL FROM MWD SHALLOW TEST MWD -100 GPM,210 PSI -140 GPM,330 PSI -UNABLE TO RECEIVE SIGNAL FROM MWD 04:45 - 05:30 0.75 TIEBAC N DFAL OTHCMP POOH FROM 1,583'TO SURFACE -POOH FOR MWD FAILURE#3 05:30 - 06:30 1.00 TIEBAC N DFAL OTHCMP BREAK DOWN INNER STRING AND MWD 06:30 - 08:30 2.00 TIEBAC N DEAL, OTHCMP REBUILD MWD TOOL 08:30 - 10:00 1.50 TIEBAC N DFAL OTHCMP MU INNER STRING,MWD,AND LINER TOP PACKER 10:00 - 10:30 0.50 TIEBAC N DFAL OTHCMP SHALLOW TEST MWD 10:30 - 11:00 0.50 TIEBAC N DFAL OTHCMP RIH WITH LEM ON 4"DP FROM SURFACE TO 1,557'MD 11:00 - 18:00 7.00 TIEBAC N DFAL OTHCMP CHANGE OUT ELEVATORS RIH WITH LEM ON 5"DP FROM 1,557'TO 10,378' 18:00 - 19:00 1.00 TIEBAC P OTHCMP RIH TO ENGAGE LEM INTO HOOK HANGER RIH WITH PUMPS ON -120 GPM,700 PSI -79 DEG R OF HIGH SIDE BEFORE SNAPPING IN SET DOWN 15K ON LEM TO SNAP COLLETS INTO POSITION -OBSERVED 10K POP AS COLLET SNAPPED INTO PROFILE OF THE HOOK HANGER -OBSERVED TOOLFACE SHIFT TO 51 DEG RIGHT OF HIGH SIDE PICKED UP 10K OVERPULL TO CONFIRM SET -GOOD SET DOWN 15K TO CONFIRM SEAT -GOOD CALL TOWN FOR ORDERS Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 22 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 9/3/2010 End Date:9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 20:00 1.00 TIEBAC P OTHCMP DROP 1-1/2"BALL AND PUMP DOWN ON SEAT -120 GPM,650 PSI BALL ON SEAT AT 19:46 20:00 - 20:15 0.25 TIEBAC P OTHCMP PRESSURE UP TO 4,100 PSI TO SET PACKER AND RELEASE FROM RUNNING TOOL -PACKER SET AT 1,975 PSI -RELEASE FROM RUNNING TOOL 20:15 - 21:30 1.25 TIEBAC P OTHCMP RU TO PRESSURE TEST BLEED DP PRESSURE TO 1,500 PSI CLOSE BAGS PRESSURE UP ANNULUS TO 1,500 PSI HOLD PRESSURE ON ANNULUS FOR 10 MINUTES -TEST LOST 25 PSI IN 10 MINUTES BLOW DOWN KILL AND CHOKE LINES RD FROM TESTING 21:30 - 21:45 0.25 TIEBAC P OTHCMP PRE-JOB SAFETY MEETING ON UPCOMING DISPLACEMENT 21:45 - 00:00 2.25 TIEBAC P OTHCMP BEGIN DISPLACEMENT FROM 9.0 PPG FLOPRO TO 9.0 PPG BRINE CIRCULATE 35 BBL SPACER AHEAD OF CLEAN BRINE 10/11/2010 00:00 - 00:30 0.50 TIEBAC P OTHCMP FLOW CHECK -STATIC POOH TO 10,480'MD 00:30 - 03:00 2.50 TIEBAC P OTHCMP CUT AND SLIP DRILLING LINE SERVICE TOP DRIVE PERFORM AAR 03:00 - 12:00 9.00 TIEBAC P OTHCMP POOH LAYING DOWN DP FROM 10,480'TO 231'MD -MW IN/OUT-9.0 PPG 12:00 - 14:30 2.50 TIEBAC P OTHCMP PJSM WITH DOYON CASING,BAKER AND SPERRY ON UD RUNNING TOOL MWD AND LEM INNER STRING MAKE MULTIPLE SERVICE BREAKS LD LEM INNER STRING 14:30 - 15:30 1.00 RUNCOM P RUNCMP OBSERVE WELL -STATIC DRAIN STACK AND PULL FMC WEAR BUSHING MAKE UP 4-1/2"X FMC HANGER ON 4-1/2" LANDING JOINT AND MAKE DRY RUN WITH TUBING HANGER POOH W/HANGER AND STAGE COMPLETION IN PIPE SHED 15:30 - 20:30 5.00 RUNCOM P RUNCMP CLEAR AND ORGANIZE RIG FLOOR PU DOYON CASING EQUIPMENT IN PREPARATION TO RUN 4-1/2"13CR 12.6# TUBING. MONITOR WELL VIA THE TRIP TANK 20:30 - 00:00 3.50 RUNCOM P RUNCMP PJSM WITH DOYON CASING,BAKER PACKER HAND ON RUNNING TUBING RUN 4-1/2"12.6#13CR-85 VAM TOP TUBING FROM SURFACE TO 2,200' -MAKE UP 4-1/2"VAM TOP TO 4,400 FT-LBS -BAKER LOK ALL CONNECTIONS BELOW PRODUCTION PACKER -USE JET LUBE SEAL GUARD ON ALL VAM TOP CONNECTIONS 10/12/2010 00:00 - 00:30 0.50 RUNCOM P RUNCMP LUBRICATE RIG. INSPECT TOP DRIVE. Printed 12/17/2010 2:19:57PM North America -ALASKA- BP Page 23 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 00:30 - 11:00 10.50 RUNCOM P ■- RUNCMP FROM 2,201 TO 6,500'MD VAM TOP TUBING FROM 2,200 TO 6,500'MD -MAKE UP 4-1/2"VAM TOP TO 4,400 FT-LBS 11:00 - 14:00 3.00 RUNCOM P RUNCMP SPACE OUT TUBING PU JOINT#243&244 TO SPACE OUT NO GO @ 10,573.34' LD JOINT#242,#243&244 PU PUP JOINTS PU JOINT#242, HANGER,&LANDING JOINT -FINAL PUW-175K;SOW-135K LAND TUBING -INSERTED 5.63'INTO SEAL BORE EXTENSION RILDS 14:00 - 15:00 1.00 RUNCOM P RUNCMP RD/CLEAN CASING EQUIPMENT RU TO REVERSE CIRCULATE CLEAR RIG FLOOR OF CASING EQUIPMENT, LONG ELEVATORS, LINKS, TONGS,SLIPS,HYDRAULIC RAM,AND ALL SMALL TOOLS. 15:00 - 19:30 4.50 RUNCOM P RUNCMP PJSM WITH MUD ENGINEER AND CH2M HILL ON TUBING DISPLACEMENT. RU TO REVERSE CIRCULATE AND DISPLACE W/INHIBITED BRINE REVERSE CIRCULATE -160 BBLS OF CLEAN 9.0 PPG BRINE, FOLLOWED BY 390 BBL OF 9.0 BRINE TREATED WITH CORROSION INHIBITOR, FOLLOWED 200 BBLS OF CLEAN 9.0 PPG BRINE -120 GPM RD FROM DISPLACEMENT 19:30 - 20:45 1.25 RUNCOM P RUNCMP PJSM. DROP BALL. R/U TO SET PACKER AND TEST. SET PACKER WITH 4,200 PSI AND BLEED BACK TO 3,500 PSI 20:45 - 22:30 1.75 RUNCOM P RUNCMP TEST TUBING FOR 30 MIN -TEST LOST 50 PSI IN THE 1ST 15 MIN,AND 25 PSI IN THE 2ND 15 MINUTES FOR A TOTAL OF 75 PSI -GOOD TEST BLED TUBING TO 2,000 PSI. Aft PRESSURE UP TO 3,500 ON OA TO TEST, PACKER f I� -3,500 PSI FOR 30 MIN. -TEST LOST 50 PSI IN THE 1ST 15 MIN,AND 0 PSI IN THE 2ND 15 MINUTES FOR A TOTAL OF 50 PSI BLEED OFF TUBING PRESSURE TO SHEAR DCR-1 VALVE IN GLM CONFIRM CIRCULATION IN BOTH DIRECTIONS WITH RIG PUMP. -DCR-1 SHEARED WITH 2,500 PSI DIFFERENTIAL Printed 12/17/2010 2:19:57PM "'North America-ALASKA-BP Page 24 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:30 - 00:00 1.50 WHSUR P RUNCMP FMC SET TWO-WAY CHECK INTO TUBING SPOOL. TEST TWO-WAY CHECK FROM BELOW TO 250 PSI LOW FOR 5 MIN AND 1,000 PSI HIGH FOR 10 MIN. -TEST LOST 0 PSI IN 10 MINUTES TEST TWO-WAY CHECK FROM ABOVE TO 250 PSI LOW FOR 5 MIN AND 4,000 PSI FOR 10 MIN. -TEST LOST 0 PSI IN 10 MINUTES 10/13/2010 00:00 - 00:30 0.50 WHSUR P RUNCMP TEST TWO-WAY CHECK FROM ABOVE TO 250 PSI LOW FOR 5 MIN AND 4,000 PSI FOR 10 MIN. -TEST LOST 0 PSI IN 10 MINUTES 00:30 - 08:00 7.50 WHSUR P RUNCMP BLOW DOWN LINES,SUCK OUT STACK, CLEAN DRIP PAN ND FLOW LINE RISER AND CHOKE LINE REMOVE ALL RAMS CLEAN RAM CAVITIES REMOVE PICTURE NIPPLE 08:00 - 12:00 4.00 WHSUR P RUNCMP MU HYDRIL BREAK OUT DEVISE DISCONNECT HYDRAULICS RD HYDRIL BREAK OUT DEVISE ND CHOKE AND STACK REMOVE SPACER SPOOL FROM CELLAR 12:00 - 17:00 5.00 WHSUR P RUNCMP PRE-JOB SAFETY MEETING PU PRODUCTION TREE AND ORIENT WITH ADAPTER FLANGE NIPPLE UP TREE. TEST HANGER/TREE VOID W/FMC TO 5,000 PSI FOR 15 MIN -GOOD TEST TEST TREE TO 250 PSI LOW FOR 5 MIN AND 5,000 PSI HIGH FOR 10 MIN. -TEST LOST 75 PSI IN 10 MINUTES -GOOD TEST. 17:00 - 18:00 1.00 WHSUR P RUNCMP PRE-JOB SAFETY MEETING RU LUBRICATOR TO PULL TWO-WAY CHECK -TEST LUBRICATOR TO 250 PSI LOW,3,500 PSI HIGH FOR 5 MIN EACH. -GOOD TEST. PULL TWO WAY CHECK. 18:00 - 04:55 WHSUR P RUNCMP PRE-JOB SAFETY MEETING RU HOT OIL TO FREEZE PROTECT TUBING AND IA PRESSURE TEST LINES TO 3,000 PSI. LITTLE RED CIRCULATE DIESEL FREEZE PROTECT REVERSE CIRCULATE 160 BBLS DIESEL DOWN IA -INITIAL: 1.5 BPM,100 PSI,5 BPM,1,350 PSI -FINAL: 5 BPM,1,350 PSI SHUT IN IA AND BLEED OFF LINES OPEN ANNULUS TO TUBING AND ALLOW FREEZE PROTECT TO U-TUBE 10/14/2010 00:00 - 00:30 0.50 WHSUR P RUNCMP CONTINUE TO ALLOW DIESEL TO U-TUBE 00:30 - 01:30 1.00 WHSUR P -_ RUNCMP BLEED OFF PRESSURE DRAIN HOSES AND RD LINES Printed 12/17/2010 2:19:57PM North America -ALASKA-BP Page 25 of 25 Operation Summary Report Common Well Name:W-19 AFE No Event Type: COM-ONSHORE(CON) Start Date:9/3/2010 End Date: 9/15/2010 X3-00V1Z-C(3,251,284.00) Project: Prudhoe Bay Site: PB W Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/15/1998 12:00:00AM Rig Release: 10/14/2010 Rig Contractor: DOYON DRILLING INC. UWI:500292200600 Active Datum:W-19B @86.87ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:30 - 02:00 0.50 WHSUR P RUNCMP RU DSM AND LITTLE RED HOT OIL. RU DSM LUBRICATOR INSTALL BPV RU HOT OIL TRUCK TO TEST BPV THROUGH IA 02:00 - 03:00 1.00 WHSUR P RUNCMP TEST BPV FROM BELOW TO 250 PSI LOW FOR 5 MINUTES AND 1,000 PSI HIGH FOR 10 MINUTES -TEST LOST 0 PSI IN 10 MINUTES -GOOD TEST RD HOT OIL TRUCK 03:00 - 04:00 1.00 WHSUR P RUNCMP REMOVE 1502 FLANGE INSTALL BLANK FLANGES REMOVE DOUBLE ANNULAR VALVES INSTALL VR PLUGS IN BOTH IA VALVES SECURE WELL RIG RELEASED AT @ 04:00 HRS ON 10/14/2010 RIG TO MOVE TO EDGE OF W-PAD FOR MAINTENANCE TREE PRESSURE-0 PSI IA PRESSURE-0 PSI OA PRESSURE-0 PSI Printed 12/17/2010 2:19:56PM W-19B & W-19BL1 , Well History Date Summary 1013/10 T/I/O=0/0/0 Rigged up lubricator with pulling tool and tested to 300 psi low and 3500 psi high against TWC. (passed)Closed master with pressure on tree and bled of top side to verify master as barrier for after TWC removal.(passed) Pulled 4" CIW H TWC w/1-2'ext. @ 104" Rig freeze protect and u-tube. Rigged up lubricator with BPV and running tool,tested lubricator. Set 4" CIW H BPV# 131 @ 104" Tested BPV from below to 250 psi low and 1000 psi high.(passed) Set 2" FMC style VR plugs in both I/A's. Doyon 14 RDMO. 10/15/10 T/I/O=0/0/0 Verified barriers (Master&Swab)500 PSI/Pass,Attached lubricator and pulling tool to tree, Pressure tested lubricator-Low 300 psi/Pass High-3500 psi/Pass...Pulled 4-1/16" CIW "H" BPV# 131....1-1'ext.used,tag @ 113"....pressure tested tree cap to 500 psi/Pass.. Pulled 2" FMC V/R plugs from I/A'S...Post Doyon 14...no problems. 10/19/10 ***WELL SHUT IN ON ARRIVAL***(post sdtk) REMOVE SNOW FROM JOB SITE&SPOT UP SLICKLINE. STAND BY FOR SECONDARY EQUIPMENT. ***JOB CONTINUED ON 10/20/10*** 10/20/10 ***JOB CONTINUED FROM 10/19/10***(post sdtk) PULLED BALL& ROD FROM 10541' SLM PULLED STA.#5 RK-DGLV @ 6530' SLM/6535 MD. PULLED STA#7 DCRV @ 3507 SLM/3520 MD. SET LGLV STA#7&SET OGLV STA#5 PULLED RHC BODY FROM X-NIPPLE@ 10,545 SLM,10,556 MD,11' CORRECTION,EMPTY. MADE STOPS W/PETREDAT GAUGES AS PER PROGRAM,REC GOOD DATA *** LEFT WELL SHUT IN,TURNED WELL OVER TO PAD OPER. *** 10/24/10 ASRC Test Unit#1, Move unit, Spot up, Start R/U, ***Job in progress*** 10/25/10 ASRC Test Unit#1,Complete R/U, S/B for W-pad brought back online, ***Job in progress*** 10/26/10 ASRC Test Unit#1, Standby for OK to flow due to upset at GC2/PCC, DRIL conduct well control drill in safety meeting with all crews, Got OK to flow @22:30,sign permit, line up diverts, Divert well through test sep, ***Job in progress*** 10/27/10 ASRC Test unit#1,continue flowing well @ under 1000 bpd per PCC and GC2**job in progress** **inlet well W-19, outlet W-18** **conduct man down drill** 10/28/10 ASRC Test unit#1, continue flowing well, increasing inlet choke, sample for solids**job in progress** **inlet well W-19, outlet W-18** 10/29/10 ASRC Test unit#1,continue flowing well, increasing choke, sample for solids, 20:30 hold choke setting @ 74 beans per PCC**job in progress****inlet well W-19, outlet W-18** 10/30/10 ASRC Test unit#1,continue flowing well and sample for solids. Increase choke to full open,start test **job in progress****inlet well W-19,outlet W-18** 10/31/10 ASRC Test unit#1,complete 8 hour test, RDMO**job complete** **inlet well W-19, outlet W-18** 11/21/10 T/I/O= 1910/1920/0+.Temp=SI.TIFL-FAILED. (Scale Prevention).AL online @ 1920 psi. IA FL @ 6535. Bled IAP to production from 1920 psi to 350 psi in 2 hrs. During bleed TBG pressure decreased 30 psi, OAP remained unchanged, IA FL unchanged. Monitored for 1 hr, IAP increased 330 psi, IA FL unchanged.Job complete. Final WHPs= 1890/680/0+. SV,WV, SSV=C. MV=0. IA, OA=OTG. NOVP. 11/23/10 T/I/0=1980/680/0+.Temp=SI.WHPs(Post TIFL).AL SI @ casing valve.TBG pressure increased 90 psi, IAP&OAP unchanged overnight. SV,WV, SSV=C. MV=0. IA, OA=OTG. NOVP. 11/23/10 Cost for isolation sleeve to be milled 11/24/10 ***WELL S/I ON ARRIVAL*** RAN 3.60" CENT, 3.50" MAGNET TO 10576' SLM RAN 4-1/2" X-LINE, LOCATED X-NIP @ 10546' SLM/10556' MD(+ 10'correction) LAY UNIT DOWN FOR THE NIGHT ***WELL LEFT S/I, PAD OP NOTIFIED*** Page 1 of 2 W-19B & W-19BL1 , Well History Date Summary 11/25/10 ***CONT.WSR FROM 11-24-10*** RAN PETREDAT SBHPS GAUGES AS PER PROGRAM ***WELL S/I ON DEPARTURE, PAD-OP NOTIFIED OF STATUS*** 12/03/10 ***WELL S/I ON ARRIVAL***(post sdtrk/SIT) TAGGED PUP JOINT @ 10,585'SLM W/3.805" G-RING (No issues encountered). SET 4-1/2" BAKER TYPE#1 ISOLATION SLEEVE.(oal= 18.81') @ 10,611' SLM. ***WELL S/I ON DEPARTURE, NOTIFIED PAD OPERATOR OF WELL STATUS*** 12/04/10 T/I/0=1900/680/0 Load IA(Pre SIT). Pumped 305 bbls crude down IA to load. **Wellhead valves left in the following positions:SV,WV, SSV&A/L=S/I. MV, IA&OA=open.**FWP's=2000/700/0 12/05/10 T/I/O= 1940/500/0. Scale Inhibitor Treatment. MIRU SLB pump van and pumped the following fluids.23 bbls of 1%Techni-Wet 4353,45 bbls of 10%Scaletrol 720 w/0.25%Techni-Wet 4353,25 bbls of Techni- Wet 4353, and 14 bbls of 500#wax beads in 30#of HEC gel. Followed wax beads with 20 bbls of 1% Techni-Wet 4353,45 bbls of 10%Scaletrol 720 w/0.25%Techni-Wet 4353,250 bbls of 1%Techni-Wet 4353. Displaced with 176 bbls of 1% KCL, 5 bbls of Meth and 27 bbls of diesel.At 117 bbls of the overflush a 100 psi pressure increase occurred (Wax beads at perfs). Final WHP's= 1000/639/0. 12/08/10 ***WELL S/I ON ARRIVAL***(post sdtrk) RAN 4-1/2" GS, SD @ 3890' SLM (appears to be sticky), NOTHING ON GS LAY DOWN UNIT FOR THE NIGHT ***CONT ON 12/09/10 WSR*** Page 2 of 2 North America - ALASKA - BP Prudhoe Bay PB W Pad W-19 W-19B Design: W-19B Survey Report - Geographic 26 September, 2010 r..,•' BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site:.r- PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM .16-Anc Prod-WH24P Project Prudhoe Bay,GPB, PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18ft Latitude: 70°17 31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 0.84 ° Well W-19,W-19 Well Position +N/-S 0.00 ft Northing: 5,959,560.93 ft Latitude: 70° 17'54.473 N 1 +E/-W 0.00 ft Easting: 612,049.07 ft Longitude: 149°5'33.247 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 47.83ft 'Wellbore W-19B Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2009 8/1/2010 21.90 80.89 57,684 Design W-19B Audit Notes: Version: Phase: ACTUAL Tie On Depth: 11,919.14 Vertical Section:, Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 33.97 0.00 0.00 326.85 Survey Program Date 8/31/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 34.22 2,697.57 1 :Schlumberger GCT multishot(W-19) GCT-MS Schlumberger GCT multishot 2,716.00 3,137.00 Gyro(W-19BPB1) GYD-GC-SS Gyrodata gyro single shots 3,186.84 9,320.26 MWD Run 100(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 9,378.39 10,493.92 MWD Run 200(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,591.76 10,659.86 MWD Run 300(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,695.31 11,188.53 MWD Run 400 500(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 11,216.56 11,919.14 MWD Run 600 700(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 11,952.11 13,679.14 MWD Run 900 1000(W-19B) MWD+IFR+MS MWD+IFR+Multi Station 9/26/2010 10:09:07AM Page 2 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 33.97 0.00 0.00 33.97 0.00 0.00 5,959,560.93 612,049.07 70°17'54.473 N 149°5'33.247 W 34.22 0.35 284.32 34.22 0.00 0.00 5,959,560.93 612,049.07 70°17'54.473 N 149°5'33.247 W 44.82 0.18 7.99 44.82 0.02 -0.03 5,959,560.95 612,049.04 70°17'54.474 N 149°5'33.248 W 55.32 0.13 86.49 55.32 0.04 -0.02 5,959,560.97 612,049.05 70°17'54.474 N 149°5'33.247 W 65.92 0.15 79.75 65.92 0.04 0.01 5,959,560.97 612,049.08 70°17'54.474 N 149°5'33.247 W 76.57 0.17 78.70 76.57 0.05 0.04 5,959,560.98 612,049.11 70°17'54.474 N 149°5'33.246 W 87.17 0.18 79.58 87.17 0.06 0.07 5,959,560.99 612,049.14 70°17'54.474 N 149°5'33.245 W 97.87 0.18 82.81 97.87 0.06 0.10 5,959,560.99 612,049.17 70° 17'54.474 N 149°5'33.244 W 104.92 0.18 84.27 104.92 0.06 0.13 5,959,561.00 612,049.20 70° 17'54.474 N 149°5'33.243 W 116.52 0.15 89.71 116.52 0.07 0.16 5,959,561.00 612,049.23 70°17'54.474 N 149°5'33.242 W _ 133.22 0.15 105.42 133.22 0.06 0.20 5,959,560.99 612,049.27 70°17'54.474 N 149°5'33.241 W 150.02 0.15 113.69 150.02 0.05 0.24 5,959,560.98 612,049.31 70°17'54.474 N 149°5'33.240 W 166.72 0.12 114.02 166.72 0.03 0.28 5,959,560.96 612,049.35 70°17'54.474 N 149°5'33.239 W 183.37 0.10 154.23 183.37 0.01 0.30 5,959,560.94 612,049.37 70°17'54.474 N 149°5'33.238 W 199.97 0.20 195.05 199.97 -0.03 0.30 5,959,560.90 612,049.37 70°17'54.473 N 149°5'33.238 W 216.42 0.28 182.37 216.42 -0.10 0.29 5,959,560.83 612,049.36 70°17'54.472 N 149°5'33.239 W 232.92 0.27 163.60 232.92 -0.18 0.30 5,959,560.76 612,049.37 70°17'54.472 N 149°5'33.238 W 249.42 0.25 154.66 249.42 -0.25 0.33 5,959,560.69 612,049.40 70°17'54.471 N 149°5'33.237 W 265.92 0.23 147.75 265.92 -0.31 0.36 5,959,560.63 612,049.44 70°17'54.470 N 149°5'33.237 W 282.27 0.20 143.52 282.27 -0.36 0.39 5,959,560.58 612,049.47 70°17'54.470 N 149°5'33.236 W 298.52 0.17 142.77 298.52 -0.40 0.43 5,959,560.54 612,049.50 70°17'54.470 N 149°5'33.235 W 314.77 0.13 149.48 314.77 -0.43 0.45 5,959,560.50 612,049.53 70°17'54.469 N 149°5'33.234 W 331.22 0.15 167.05 331.22 -0.47 0.46 5,959,560.46 612,049.54 70° 17'54.469 N 149°5'33.233 W 347.52 0.22 178.27 347.52 -0.52 0.47 5,959,560.41 612,049.55 70° 17'54.468 N 149°5'33.233 W 363.97 0.28 175.63 363.97 -0.60 0.47 5,959,560.34 612,049.55 70° 17'54.468 N 149°5'33.233 W 380.42 0.32 170.91 380.42 -0.68 0.48 5,959,560.26 612,049.56 70° 17'54.467 N 149°5'33.233 W 396.87 0.33 165.25 396.87 -0.77 0.50 5,959,560.17 612,049.59 70° 17'54.466 N 149°5'33.232 W 413.37 0.30 154.77 413.37 -0.86 0.53 5,959,560.08 612,049.62 70° 17'54.465 N 149°5'33.231 W 429.82 0.23 139.95 429.82 -0.92 0.57 5,959,560.02 612,049.66 70° 17'54.464 N 149°5'33.230 W 446.32 0.17 130.68 446.32 -0.96 0.61 5,959,559.98 612,049.70 70° 17'54.464 N 149°5'33.229 W 462.72 0.10 143.97 462.72 -0.99 0.64 5,959,559.95 612,049.73 70° 17'54.464 N 149°5'33.228 W 479.22 0.13 178.83 479.22 -1.02 0.65 5,959,559.92 612,049.73 70° 17'54.463 N 149°5'33.228 W 495.72 0.22 191.02 495.72 -1.07 0.64 5,959,559.87 612,049.73 70° 17'54.463 N 149°5'33.228 W 512.17 0.23 173.68 512.17 -1.13 0.64 5,959,559.81 612,049.73 70°17'54.462 N 149°5'33.228 W 528.67 0.20 155.07 528.67 -1.19 0.66 5,959,559.75 612,049.75 70° 17'54.462 N 149°5'33.228 W 545.17 0.13 128.17 545.17 -1.23 0.68 5,959,559.71 612,049.77 70° 17'54.461 N 149°5'33.227 W 561.67 0.03 174.27 561.67 -1.25 0.70 5,959,559.69 612,049.79 70° 17'54.461 N 149°5'33.227 W 578.12 0.08 225.78 578.12 -1.26 0.69 5,959,559.68 612,049.78 70°17'54.461 N 149°5'33.227 W 594.67 0.18 203.94 594.67 -1.29 0.67 5,959,559.65 612,049.76 70°17'54.461 N 149°5'33.227 W 611.17 0.20 183.94 611.17 -1.34 0.66 5,959,559.60 612,049.75 70°17'54.460 N 149°5'33.228 W 627.67 0.17 155.13 627.67 -1.39 0.67 5,959,559.55 612,049.76 70°17'54.460 N 149°5'33.228 W 643.97 0.10 119.32 643.97 -1.42 0.69 5,959,559.52 612,049.78 70°17'54.459 N 149°5'33.227 W 660.07 0.03 24.76 660.07 -1.43 0.71 5,959,559.51 612,049.80 70°17'54.459 N 149°5'33.226 W 676.07 0.10 271.27 676.07 -1.42 0.69 5,959,559.52 612,049.78 70°17'54.459 N 149°5'33.227 W 692.07 0.18 221.17 692.07 -1.44 0.66 5,959,559.50 612,049.75 70°17'54.459 N 149°5'33.228 W 708.12 0.20 196.38 708.12 -1.49 0.64 5,959,559.45 612,049.73 70°17'54.459 N 149°5'33.228 W 724.22 0.17 160.60 724.22 -1.54 0.64 5,959,559.40 612,049.73 70°17'54.458 N 149°5'33.228 W 740.22 0.10 106.17 740.22 -1.56 0.66 5,959,559.38 612,049.75 70°17'54.458 N 149°5'33.228 W 756.17 0.05 15.34 756.17 -1.56 0.67 5,959,559.38 612,049.77 70°17'54.458 N 149°5'33.227 W 772.07 0.08 282.23 772.07 -1.55 0.67 5,959,559.39 612,049.76 70°17'54.458 N 149°5'33.228 W 787.77 0.15 236.57 787.77 -1.56 0.64 5,959,559.38 612,049.73 70°17'54.458 N 149°5'33.228 W 803.37 0.18 208.61 803.37 -1.59 0.61 5,959,559.35 612,049.70 70° 17'54.458 N 149°5'33.229 W 819.07 0.17 166.85 819.07 -1.64 0.60 5,959,559.30 612,049.70 70° 17'54.457 N 149°5'33.229 W 834.87 0.10 119.91 834.87 -1.67 0.62 5,959,559.27 612,049.71 70° 17'54.457 N 149°5'33.229 W 850.82 0.07 54.71 850.82 -1.67 0.64 5,959,559.27 612,049.73 70° 17'54.457 N 149°5'33.228 W 9/26/2010 10:09:07AM Page 3 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site:, PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM .16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 866.72 0.07 305.02 866.72 -1.66 0.64 5,959,559.28 612,049.73 70° 17'54.457 N 149°5'33.228 W 882.52 0.13 224.78 882.52 -1.66 0.62 5,959,559.28 612,049.71 70° 17'54.457 N 149°5'33.229 W 898.37 0.18 189.99 898.37 -1.70 0.60 5,959,559.24 612,049.70 70° 17'54.457 N 149°5'33.229 W 914.22 0.17 150.72 914.22 -1.75 0.61 5,959,559.19 612,049.71 70° 17'54.456 N 149°5'33.229 W 930.07 0.12 106.69 930.07 -1.77 0.64 5,959,559.17 612,049.73 70° 17'54.456 N 149°5'33.228 W 946.27 0.05 42.84 946.27 -1.77 0.66 5,959,559.17 612,049.75 70°17'54.456 N 149°5'33.228 W 962.47 0.07 306.24 962.47 -1.76 0.65 5,959,559.18 612,049.75 70°17'54.456 N 149°5'33.228 W 978.77 0.13 230.04 978.77 -1.77 0.63 5,959,559.17 612,049.73 70°17'54.456 N 149°5'33.229 W 995.02 0.20 198.10 995.02 -1.80 0.61 5,959,559.13 612,049.71 70°17'54.456 N 149°5'33.229 W 1,011.32 0.18 169.19 1,011.32 -1.86 0.61 5,959,559.08 612,049.70 70°17'54.455 N 149°5'33.229 W 1,027.62 0.15 139.02 1,027.62 -1.90 0.62 5,959,559.04 612,049.72 70°17'54.455 N 149°5'33.229 W 1,043.92 0.12 125.60 1,043.92 -1.92 0.65 5,959,559.02 612,049.75 70°17'54.455 N 149°5'33.228 W 1,060.27 0.10 154.36 1,060.27 -1.95 0.67 5,959,558.99 612,049.77 70°17'54.454 N 149°5'33.227 W 1,076.47 0.15 190.91 1,076.47 -1.98 0.67 5,959,558.96 612,049.77 70°17'54.454 N 149°5'33.227 W 1,092.77 0.25 194.23 1,092.77 -2.04 0.66 5,959,558.90 612,049.76 70° 17'54.453 N 149°5'33.228 W 1,109.07 0.30 180.10 1,109.07 -2.11 0.65 5,959,558.83 612,049.75 70°17'54.453 N 149°5'33.228 W 1,125.42 0.27 155.12 1,125.41 -2.19 0.67 5,959,558.75 612,049.77 70° 17'54.452 N 149°5'33.228 W 1,141.72 0.18 140.69 1,141.71 -2.25 0.70 5,959,558.70 612,049.80 70° 17'54.451 N 149°5'33.227 W 1,158.02 0.12 159.33 1,158.01 -2.28 0.72 5,959,558.66 612,049.83 70° 17'54.451 N 149°5'33.226 W 1,174.32 0.15 187.87 1,174.31 -2.32 0.73 5,959,558.62 612,049.83 70° 17'54.451 N 149°5'33.226 W 1,190.62 0.25 194.73 1,190.61 -2.37 0.71 5,959,558.57 612,049.82 70° 17'54.450 N 149°5'33.226 W 1,206.92 0.27 184.21 1,206.91 -2.45 0.70 5,959,558.49 612,049.81 70° 17'54.449 N 149°5'33.227 W 1,223.17 0.22 159.18 1,223.16 -2.51 0.71 5,959,558.43 612,049.82 70° 17'54.449 N 149°5'33.226 W 1,239.52 0.13 106.34 1,239.51 -2.55 0.74 5,959,558.39 612,049.85 70° 17'54.448 N 149°5'33.225 W 1,255.77 0.10 50.40 1,255.76 -2.54 0.77 5,959,558.40 612,049.88 70° 17'54.448 N 149°5'33.225 W 1,272.07 0.12 347.70 1,272.06 -2.52 0.78 5,959,558.42 612,049.88 70°17'54.449 N 149°5'33.224 W 1,288.12 0.40 292.45 1,288.11 -2.48 0.72 5,959,558.46 612,049.83 70°17'54.449 N 149°5'33.226 W 1,304.42 1.13 279.09 1,304.41 -2.43 0.51 5,959,558.50 612,049.62 70° 17'54.449 N 149°5'33.232 W 1,320.67 2.33 283.17 1,320.65 -2.33 0.03 5,959,558.60 612,049.13 70° 17'54.450 N 149°5'33.246 W 1,336.82 3.75 284.41 1,336.78 -2.13 -0.80 5,959,558.79 612,048.30 70°17'54.453 N 149°5'33.270 W 1,352.97 4.92 283.87 1,352.89 -1.83 -1.99 5,959,559.07 612,047.11 70°17'54.455 N 149°5'33.305 W 1,369.27 5.78 283.28 1,369.11 -1.47 -3.46 5,959,559.40 612,045.63 70°17'54.459 N 149°5'33.348 W 1,385.47 6.67 282.82 1,385.22 -1.08 -5.17 5,959,559.78 612,043.91 70° 17'54.463 N 149°5'33.398 W 1,401.37 7.58 282.43 1,401.00 -0.65 -7.10 5,959,560.18 612,041.98 70° 17'54.467 N 149°5 33.454 W 1,417.27 8.28 282.39 1,416.74 -0.18 -9.24 5,959,560.62 612,039.83 70°17'54.472 N 149°5'33.516 W 1,433.32 8.75 282.68 1,432.62 0.34 -11.56 5,959,561.10 612,037.51 70°17'54.477 N 149°5'33.584 W 1,449.37 9.13 283.04 1,448.47 0.90 -13.99 5,959,561.62 612,035.07 70°17'54.482 N 149°5'33.655 W 1,465.32 9.40 283.60 1,464.21 1.49 -16.49 5,959,562.17 612,032.56 70°17'54.488 N 149°5'33.728 W 1,481.42 9.65 284.42 1,480.09 2.13 -19.08 5,959,562.78 612,029.97 70°17'54.494 N 149°5'33.803 W 1,497.57 9.87 285.28 1,496.01 2.83 -21.72 5,959,563.44 612,027.31 70°17'54.501 N 149°5'33.880 W 1,513.62 10.02 286.33 1,511.82 3.59 -24.39 5,959,564.16 612,024.63 70°17'54.509 N 149°5'33.958 W 1,529.67 10.13 287.39 1,527.62 4.40 -27.08 5,959,564.93 612,021.93 70°17'54.517 N 149°5'34.036 W 1,545.77 10.20 288.14 1,543.47 5.27 -29.78 5,959,565.76 612,019.22 70°17'54.525 N 149°5'34.115 W 1,561.87 10.22 288.62 1,559.31 6.17 -32.49 5,959,566.62 612,016.49 70°17'54.534 N 149°5'34.194 W 1,577.92 10.15 288.97 1,575.11 7.09 -35.18 5,959,567.49 612,013.79 70°17'54.543 N 149°5'34.272 W 1,594.02 10.00 289.28 1,590.96 8.01 -37.84 5,959,568.37 612,011.12 70°17'54.552 N 149°5'34.350 W 1,610.02 9.72 289.80 1,606.72 8.92 -40.42 5,959,569.25 612,008.52 70°17'54.561 N 149°5'34.425 W 1,626.02 9.17 290.15 1,622.51 9.82 -42.89 5,959,570.11 612,006.04 70° 17'54.570 N 149°5'34.497 W 1,642.02 8.52 290.23 1,638.32 10.67 -45.20 5,959,570.92 612,003.72 70° 17'54.578 N 149°5'34.565 W 1,658.07 8.05 290.21 1,654.20 11.47 -47.37 5,959,571.69 612,001.54 70° 17'54.586 N 149°5'34.628 W 1,674.07 7.67 290.07 1,670.05 12.22 -49.42 5,959,572.41 611,999.48 70° 17'54.594 N 149°5'34.688 W 1,690.17 7.32 290.09 1,686.01 12.94 -51.39 5,959,573.10 611,997.49 70° 17'54.601 N 149°5'34.745 W 1,706.32 6.87 290.22 1,702.04 13.63 -53.27 5,959,573.76 611,995.61 70°17'54.607 N 149°5'34.800 W 1,722.42 6.32 290.22 1,718.03 14.27 -55.00 5,959,574.38 611,993.87 70°17'54.614 N 149°5'34.850 W 1,738.42 5.88 290.06 1,733.94 14.86 -56.60 5,959,574.94 611,992.26 70°17'54.620 N 149°5'34.897 W 9/26/2010 10:09:07AM Page 4 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 1,754.52 5.47 289.77 1,749.96 15.40 -58.09 5,959,575.46 611,990.76 70° 17'54.625 N 149°5'34.941 W 1,770.62 5.13 289.42 1,765.99 15.90 -59.50 5,959,575.94 611,989.35 70° 17'54.630 N 149°5'34.981 W 1,786.62 4.80 289.10 1,781.93 16.35 -60.80 5,959,576.37 611,988.04 70°17'54.634 N 149°5'35.019 W 1,802.57 4.50 288.82 1,797.83 16.77 -62.03 5,959,576.78 611,986.81 70°17'54.638 N 149°5'35.055 W 1,818.47 4.32 289.33 1,813.68 17.17 -63.18 5,959,577.16 611,985.65 70°17'54.642 N 149°5'35.089 W 1,834.17 4.15 289.77 1,829.34 17.56 -64.27 5,959,577.53 611,984.55 70°17'54.646 N 149°5 35.121 W 1,849.92 3.97 289.41 1,845.05 17.94 -65.32 5,959,577.89 611,983.49 70°17'54.650 N 149°5 35.151 W 1,865.67 3.83 289.03 1,860.76 18.29 -66.34 5,959,578.23 611,982.47 70°17'54.653 N 149°5'35.181 W 1,881.52 3.72 288.87 1,876.58 18.63 -67.32 5,959,578.55 611,981.48 70°17'54.657 N 149°5'35.210 W 1,897.32 3.58 290.02 1,892.35 18.96 -68.27 5,959,578.87 611,980.53 70°17'54.660 N 149°5'35.237 W 1,913.02 3.42 292.60 1,908.02 19.31 -69.16 5,959,579.20 611,979.63 70°17'54.663 N 149°5 35.263 W 1,928.72 3.23 292.91 1,923.69 19.66 -70.00 5,959,579.54 611,978.79 70°17'54.667 N 149°5 35.288 W 1,944.27 2.93 292.15 1,939.22 19.98 -70.78 5,959,579.85 611,978.01 70°17'54.670 N 149°5'35.310 W 1,959.72 2.63 291.84 1,954.65 20.26 -71.47 5,959,580.12 611,977.31 70°17'54.673 N 149°5'35.330 W 1,975.22 2.42 290.67 1,970.14 20.51 -72.11 5,959,580.36 611,976.67 70°17'54.675 N 149°5'35.349 W 1,990.67 2.22 289.32 1,985.57 20.72 -72.69 5,959,580.57 611,976.08 70°17'54.677 N 149°5 35.366 W 2,006.27 2.10 288.08 2,001.16 20.91 -73.25 5,959,580.75 611,975.52 70°17'54.679 N 149°5 35.382 W 2,021.67 2.03 287.85 2,016.55 21.08 -73.78 5,959,580.91 611,974.99 70°17'54.681 N 149°5'35.398 W 2,037.02 1.97 288.53 2,031.89 21.25 -74.29 5,959,581.07 611,974.48 70°17'54.682 N 149°5'35.413 W 2,052.27 1.90 292.48 2,047.13 21.43 -74.77 5,959,581.24 611,974.00 70°17'54.684 N 149°5 35.427 W 2,067.52 1.75 297.59 2,062.38 21.64 -75.21 5,959,581.44 611,973.55 70°17'54.686 N 149°5'35.439 W 2,082.82 1.68 301.25 2,077.67 21.86 -75.61 5,959,581.66 611,973.15 70°17'54.688 N 149°5'35.451 W 2,098.32 1.67 303.88 2,093.16 22.10 -75.99 5,959,581.90 611,972.76 70°17'54.691 N 149°5'35.462 W i 2,113.97 1.50 303.14 2,108.81 22.34 -76.35 5,959,582.13 611,972.40 70°17'54.693 N 149°5'35.473 W 2,129.62 1.27 303.23 2,124.45 22.55 -76.67 5,959,582.33 611,972.08 70°17'54.695 N 149°5'35.482 W 2,145.27 1.08 303.79 2,140.10 22.73 -76.94 5,959,582.51 611,971.81 70°17'54.697 N 149°5'35.490 W 2,160.87 1.02 302.07 2,155.70 22.88 -77.18 5,959,582.66 611,971.57 70°17'54.698 N 149°5'35.497 W 2,176.57 0.97 301.47 2,171.39 23.03 -77.41 5,959,582.80 611,971.33 70°17'54.700 N 149°5'35.504 W 2,192.37 0.95 303.25 2,187.19 23.17 -77.63 5,959,582.94 611,971.11 70°17'54.701 N 149°5'35.510 W 2,208.27 0.97 302.44 2,203.09 23.31 -77.85 5,959,583.08 611,970.88 70°17'54.703 N 149°5 35.517 W 2,224.12 0.95 304.58 2,218.94 23.46 -78.08 5,959,583.22 611,970.66 70°17'54.704 N 149°5'35.523 W 2,239.92 0.97 309.47 2,234.73 23.62 -78.29 5,959,583.38 611,970.45 70°17'54.706 N 149°5'35.529 W 2,255.82 0.95 310.14 2,250.63 23.79 -78.49 5,959,583.54 611,970.24 70°17'54.707 N 149°5'35.535 W 2,271.72 0.90 310.74 2,266.53 23.96 -78.69 5,959,583.71 611,970.04 70°17'54.709 N 149°5'35.541 W 2,287.52 0.85 311.22 2,282.33 24.11 -78.87 5,959,583.86 611,969.86 70°17'54.711 N 149°5'35.546 W 2,303.37 0.78 311.32 2,298.18 24.26 -79.04 5,959,584.01 611,969.69 70°17'54.712 N 149°5'35.551 W 2,319.17 0.77 310.41 2,313.98 24.40 -79.20 5,959,584.15 611,969.52 70°17'54.713 N 149°5'35.556 W 2,334.97 0.73 304.32 2,329.77 24.53 -79.36 5,959,584.27 611,969.36 70°17'54.715 N 149°5'35.561 W 2,350.77 0.62 302.35 2,345.57 24.63 -79.52 5,959,584.37 611,969.20 70°17'54.716 N 149°5'35.565 W 2,366.62 0.58 310.74 2,361.42 24.73 -79.65 5,959,584.47 611,969.06 70°17'54.717 N 149°5'35.569 W 2,382.47 0.60 315.10 2,377.27 24.84 -79.77 5,959,584.58 611,968.94 70°17 54.718 N 149°5'35.572 W 2,398.32 0.58 314.71 2,393.12 24.96 -79.89 5,959,584.69 611,968.83 70°17'54.719 N 149°5 35.576 W 2,414.22 0.55 315.36 2,409.02 25.07 -80.00 5,959,584.80 611,968.71 70°17'54.720 N 149°5'35.579 W 2,430.12 0.53 315.92 2,424.92 25.17 -80.10 5,959,584.90 611,968.61 70°17'54.721 N 149°5'35.582 W 2,446.02 0.47 317.18 2,440.82 25.27 -80.20 5,959,585.00 611,968.51 70°17'54.722 N 149°5'35.585 W 2,461.92 0.40 318.95 2,456.72 25.36 -80.28 5,959,585.09 611,968.43 70°17'54.723 N 149°5'35.587 W 2,477.87 0.35 309.06 2,472.67 25.44 -80.35 5,959,585.16 611,968.35 70°17 54.724 N 149°5'35.589 W 2,493.77 0.23 295.42 2,488.57 25.48 -80.42 5,959,585.21 611,968.29 70°17'54.724 N 149°5'35.591 W 2,509.67 0.18 315.08 2,504.47 25.51 -80.47 5,959,585.24 611,968.24 70°17'54.724 N 149°5 35.593 W 2,525.47 0.22 335.01 2,520.27 25.56 -80.50 5,959,585.28 611,968.21 70°17'54.725 N 149°5'35.594 W 2,541.32 0.25 328.89 2,536.12 25.61 -80.53 5,959,585.34 611,968.18 70°17'54.725 N 149°5 35.595 W 2,557.22 0.25 323.65 2,552.02 25.67 -80.57 5,959,585.40 611,968.14 70°17'54.726 N 149°5'35.596 W 2,573.02 0.25 320.15 2,567.82 25.73 -80.61 5,959,585.45 611,968.09 70°17'54.726 N 149°5'35.597 W 2,588.82 0.25 306.20 2,583.62 25.77 -80.66 5,959,585.49 611,968.04 70°17'54.727 N 149°5'35.598 W 2,604.72 0.22 279.42 2,599.52 25.80 -80.72 5,959,585.52 611,967.98 70°17'54.727 N 149°5'35.600 W 9/26/2010 10:09:07AM Page 5 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 2,620.32 0.18 260.58 2,615.12 25.80 -80.77 5,959,585.52 611,967.93 70° 17'54.727 N 149°5'35.602 W 2,635.87 0.15 246.10 2,630.67 25.79 -80.81 5,959,585.51 611,967.89 70° 17'54.727 N 149°5'35.603 W 2,651.27 0.07 207.76 2,646.07 25.77 -80.84 5,959,585.49 611,967.87 70°17'54.727 N 149°5'35.603 W 2,666.52 0.02 174.87 2,661.32 25.76 -80.84 5,959,585.48 611,967.86 70°17'54.727 N 149°5'35.604 W 2,681.97 0.05 155.26 2,676.77 25.75 -80.84 5,959,585.47 611,967.86 70°17'54.727 N 149°5'35.604 W 2,697.57 0.08 102.07 2,692.37 25.74 -80.82 5,959,585.46 611,967.88 70°17 54.727 N 149°5'35.603 W 2,716.00 0.61 12.71 2,710.80 25.84 -80.79 5,959,585.56 611,967.91 70°17'54.728 N 149°5'35.602 W 2,766.00 2.17 240.80 2,760.79 25.63 -81.56 5,959,585.34 611,967.15 70°17'54.726 N 149°5'35.625 W 2,793.00 2.76 238.62 2,787.76 25.05 -82.56 5,959,584.74 611,966.15 70°17'54.720 N 149°5'35.654 W 2,852.00 2.74 244.22 2,846.69 23.69 -85.04 5,959,583.35 611,963.69 70°17 54.706 N 149°5'35.726 W 2,895.00 3.32 256.89 2,889.63 22.96 -87.18 5,959,582.59 611,961.57 70°17 54.699 N 149°5'35.788 W 2,948.00 6.47 275.94 2,942.44 22.92 -91.65 5,959,582.48 611,957.10 70°17'54.699 N 149°5'35.919 W 2,979.00 8.52 278.62 2,973.17 23.45 -95.65 5,959,582.95 611,953.09 70°17'54.704 N 149°5'36.035 W 3,011.00 11.77 282.89 3,004.67 24.53 -101.18 5,959,583.95 611,947.54 70°17'54.715 N 149°5'36.197 W 3,043.00 14.19 284.35 3,035.85 26.23 -108.16 5,959,585.54 611,940.54 70°17'54.731 N 149°5'36.400 W 3,072.00 14.91 285.36 3,063.92 28.10 -115.20 5,959,587.31 611,933.47 70°17'54.750 N 149°5'36.605 W 3,137.00 15.28 287.97 3,126.67 32.96 -131.42 5,959,591.92 611,917.19 70°17'54.798 N 149°5'37.078 W 3,186.84 15.28 296.36 3,174.76 37.90 -143.55 5,959,596.68 611,904.98 70°17'54.846 N 149°5'37.432 W 3,282.10 14.89 305.51 3,266.75 50.59 -164.76 5,959,609.05 611,883.59 70°17'54.971 N 149°5'38.050 W 3,377.75 15.40 312.98 3,359.08 66.38 -184.06 5,959,624.56 611,864.06 70°17'55.126 N 149°5'38.613 W 3,473.23 16.53 324.40 3,450.90 86.08 -201.24 5,959,643.99 611,846.58 70°17'55.320 N 149°5'39.114 W 3,567.62 18.97 333.16 3,540.81 110.69 -215.99 5,959,668.38 611,831.47 70°17 55.562 N 149°5'39.544 W 3,658.50 19.99 337.92 3,626.49 138.27 -228.50 5,959,695.77 611,818.55 70°17 55.833 N 149°5'39.908 W 3,756.37 23.13 346.04 3,717.52 172.44 -239.43 5,959,729.77 611,807.11 70°17'56.169 N 149°5'40.227 W 3,850.87 27.73 348.62 3,802.85 212.03 -248.25 5,959,769.22 611,797.70 70°17'56.559 N 149°5'40.484 W 3,943.79 29.96 351.46 3,884.24 256.18 -255.97 5,959,813.24 611,789.33 70°17'56.993 N 149°5'40.709 W 4,040.56 34.58 350.06 3,966.04 307.15 -264.30 5,959,864.08 611,780.24 70°17'57.494 N 149°5'40.952 W 4,132.37 37.94 350.50 4,040.06 360.66 -273.46 5,959,917.45 611,770.29 70°17'58.020 N 149°5'41.219 W 4,227.18 41.16 350.33 4,113.15 420.18 -283.51 5,959,976.80 611,759.35 70°17'58.606 N 149°5'41.512 W 4,321.87 42.55 351.76 4,183.68 482.59 -293.34 5,960,039.05 611,748.60 70°17'59.220 N 149°5'41.799 W 4,416.17 43.86 349.83 4,252.42 546.31 -303.67 5,960,102.60 611,737.31 70°17'59.846 N 149°5'42.100 W 4,510.06 44.31 344.94 4,319.88 610.01 -317.94 5,960,166.08 611,722.09 70°18'0.473 N 149°5'42.516 W 4,604.23 43.26 344.85 4,387.87 672.92 -334.92 5,960,228.73 611,704.18 70°18'1.092 N 149°5'43.011 W 4,699.35 42.43 344.42 4,457.61 735.29 -352.06 5,960,290.83 611,686.12 70°18'1.705 N 149°5'43.511 W 4,795.54 43.44 342.85 4,528.03 798.15 -370.53 5,960,353.40 611,666.72 70°18'2.323 N 149°5 44.049 W 4,892.60 44.19 341.12 4,598.07 862.05 -391.31 5,960,416.97 611,644.98 70°18'2.952 N 149°5'44.655 W 4,986.18 44.36 341.30 4,665.07 923.89 -412.36 5,960,478.49 611,623.02 70°18'3.560 N 149°5'45.269 W 5,080.13 44.17 341.12 4,732.35 985.98 -433.48 5,960,540.25 611,600.98 70° 18'4.170 N 149°5 45.885 W 5,172.00 44.07 340.84 4,798.30 1,046.44 -454.32 5,960,600.39 611,579.24 70°18'4.765 N 149°5 46.493 W 5,266.53 43.58 339.94 4,866.50 1,108.10 -476.29 5,960,661.71 611,556.36 70°18'5.371 N 149°5'47.133 W 5,363.32 43.46 341.86 4,936.69 1,171.08 -498.10 5,960,724.35 611,533.61 70°18'5.991 N 149°5'47.769 W 5,454.53 43.09 343.52 5,003.10 1,230.76 -516.70 5,960,783.75 611,514.12 70°18'6.578 N 149°5'48.312 W I�. 5,549.23 43.00 343.04 5,072.31 1,292.67 -535.30 5,960,845.36 611,494.61 70°18'7.187 N 149°5'48.854 W 5,640.57 42.61 343.29 5,139.32 1,352.07 -553.27 5,960,904.49 611,475.75 70°18'7.771 N 149°5 49.378 W 5,736.87 42.54 342.95 5,210.24 1,414.42 -572.19 5,960,966.54 611,455.90 70°18'8.384 N 149°5'49.930 W 5,833.90 42.92 340.07 5,281.52 1,476.84 -593.07 5,961,028.64 611,434.10 70°18'8.998 N 149°5'50.539 W 5,924.80 44.75 339.14 5,347.09 1,535.85 -615.02 5,961,087.31 611,411.28 70°18'9.578 N 149°5'51.179 W 6,018.14 44.74 339.32 5,413.38 1,597.28 -638.32 5,961,148.38 611,387.06 70°18'10.182 N 149°5'51.859 W 6,113.75 44.59 338.61 5,481.38 1,660.01 -662.44 5,961,210.74 611,362.01 70°18'10.799 N 149°5'52.562 W 6,211.43 43.26 340.53 5,551.74 1,723.50 -686.11 5,961,273.86 611,337.40 70°18'11.424 N 149°5'53.252 W 6,301.42 42.83 340.36 5,617.50 1,781.38 -706.66 5,961,331.43 611,315.99 70°18'11.993 N 149°5'53.852 W 6,396.93 42.40 339.93 5,687.79 1,842.21 -728.63 5,961,391.91 611,293.12 70°18'12.591 N 149°5'54.492 W 6,492.86 42.01 339.53 5,758.85 1,902.66 -750.95 5,961,452.02 611,269.90 70°18'13.186 N 149°5'55.143 W 6,584.06 41.79 339.29 5,826.73 1,959.68 -772.37 5,961,508.70 611,247.63 70°18'13.746 N 149°5'55.768 W 6,681.64 41.69 341.23 5,899.55 2,020.82 -794.31 5,961,569.50 611,224.79 70°18'14.348 N 149°5'56.408 W 9/26/2010 10:09:07AM Page 6 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E1-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 6,777.05 42.91 342.19 5,970.12 2,081.78 -814.46 5,961,630.16 611,203.74 70° 18' 14.947 N 149°5'56.996 W 6,871.92 42.40 342.32 6,039.89 2,143.01 -834.05 5,961,691.08 611,183.23 70°18'15.549 N 149°5'57.567 W 6,967.21 42.42 343.32 6,110.24 2,204.40 -853.03 5,961,752.18 611,163.34 70°18'16.153 N 149°5'58.121 W 7,060.72 43.18 343.47 6,178.85 2,265.29 -871.19 5,961,812.78 611,144.28 70°18'16.752 N 149°5 58.650 W 7,151.02 42.69 342.73 6,244.97 2,324.14 -889.07 5,961,871.36 611,125.53 70°18'17.331 N 149°5'59.172 W 7,248.52 41.68 340.30 6,317.22 2,386.23 -909.81 5,961,933.13 611,103.86 70°18'17.941 N 149°5'59.777 W 7,341.05 41.46 337.55 6,386.45 2,443.51 -931.88 5,961,990.07 611,080.94 70°18'18.505 N 149°6'0.421 W 7,433.33 41.40 336.39 6,455.64 2,499.70 -955.77 5,962,045.89 611,056.22 70°18'19.057 N 149°6'1.118 W 7,528.23 42.02 334.75 6,526.48 2,557.19 -981.88 5,962,102.97 611,029.25 70°18'19.623 N 149°6'1.879 W 7,617.55 43.40 334.66 6,592.11 2,611.96 -1,007.77 5,962,157.35 611,002.56 70°18'20.161 N 149°6'2.635 W 7,711.93 42.96 335.14 6,660.94 2,670.44 -1,035.17 5,962,215.41 610,974.29 70°18'20.736 N 149°6'3.434 W 7,806.42 42.36 332.56 6,730.43 2,727.91 -1,063.37 5,962,272.45 610,945.23 70°18'21.302 N 149°6'4.257 W 7,901.31 41.73 332.92 6,800.90 2,784.40 -1,092.48 5,962,328.50 610,915.29 70°18'21.857 N 149°6'5.106 W 7,994.51 41.29 330.11 6,870.69 2,838.69 -1,121.93 5,962,382.33 610,885.04 70°18'22.391 N 149°6'5.965 W 8,090.44 42.18 328.59 6,942.28 2,893.62 -1,154.49 5,962,436.76 610,851.67 70°18'22.931 N 149°6'6.914 W 8,184.31 41.28 327.99 7,012.33 2,946.77 -1,187.33 5,962,489.42 610,818.04 70°18'23.454 N 149°6'7.872 W 8,280.41 41.03 328.49 7,084.69 3,000.54 -1,220.62 5,962,542.69 610,783.96 70°18'23.983 N 149°6'8.843 W 8,373.55 43.11 327.96 7,153.83 3,053.59 -1,253.48 5,962,595.23 610,750.31 70°18'24.504 N 149°6'9.802 W 8,469.56 42.39 328.22 7,224.33 3,108.91 -1,287.93 5,962,650.03 610,715.04 70°18'25.048 N 149°6'10.807 W 8,563.60 41.60 328.07 7,294.22 3,162.36 -1,321.14 5,962,702.97 610,681.05 70°18'25.574 N 149°6'11.775 W 8,659.84 43.21 328.82 7,365.28 3,217.66 -1,355.09 5,962,757.75 610,646.27 70°18'26.118 N 149°6'12.766 W 8,752.24 43.45 328.82 7,432.49 3,271.91 -1,387.92 5,962,811.50 610,612.64 70°18'26.651 N 149°6'13.724 W 8,849.44 42.92 329.04 7,503.37 3,328.88 -1,422.25 5,962,867.95 610,577.47 70°18'27.211 N 149°6'14.725 W 8,943.48 42.70 329.29 7,572.36 3,383.76 -1,455.01 5,962,922.33 610,543.90 70°18'27.751 N 149°6'15.681 W 9,038.08 42.64 330.85 7,641.91 3,439.32 -1,487.00 5,962,977.40 610,511.09 70°18'28.297 N 149°6'16.614 W 9,131.75 42.71 332.39 7,710.78 3,495.18 -1,517.17 5,963,032.80 610,480.09 70°18'28.847 N 149°6'17.494 W 9,226.16 42.52 334.23 7,780.26 3,552.28 -1,545.88 5,963,089.47 610,450.53 70°18'29.408 N 149°6'18.332 W 9,274.14 42.18 334.47 7,815.72 3,581.42 -1,559.88 5,963,118.39 610,436.11 70°18'29.695 N 149°6'18.740 W 9,320.26 42.19 334.62 7,849.90 3,609.38 -1,573.19 5,963,146.15 610,422.38 70°18'29.970 N 149°6'19.129 W 9,378.39 41.69 334.61 7,893.14 3,644.48 -1,589.84 5,963,180.99 610,405.21 70°18'30.315 N 149°6'19.615 W 9,429.76 41.15 334.26 7,931.66 3,675.14 -1,604.51 5,963,211.43 610,390.09 70°18'30.617 N 149°6'20.043 W 9,474.49 41.06 333.93 7,965.36 3,701.59 -1,617.35 5,963,237.68 610,376.85 70°18'30.877 N 149°6'20.417 W 9,569.52 40.54 333.38 8,037.30 3,757.24 -1,644.91 5,963,292.91 610,348.47 70°18'31.424 N 149°6'21.221 W 9,664.93 39.95 333.08 8,110.13 3,812.27 -1,672.67 5,963,347.51 610,319.89 70°18'31.965 N 149°6'22.031 W 9,759.42 39.87 331.90 8,182.61 3,866.04 -1,700.67 5,963,400.85 610,291.09 70°18'32.494 N 149°6'22.848 W 9,851.84 39.76 330.88 8,253.60 3,917.99 -1,729.01 5,963,452.37 610,261.99 70°18'33.005 N 149°6'23.675 W 9,945.59 39.54 330.85 8,325.78 3,970.24 -1,758.13 5,963,504.18 610,232.09 70°18'33.519 N 149°6'24.525 W 10,042.58 39.03 330.99 8,400.85 4,023.91 -1,787.98 5,963,557.39 610,201.45 70°18'34.046 N 149°6'25.396 W 10,136.01 39.14 331.44 8,473.37 4,075.54 -1,816.34 5,963,608.59 610,172.32 70°18'34.554 N 149°6'26.224 W 10,227.98 38.15 331.29 8,545.20 4,125.95 -1,843.87 5,963,658.58 610,144.05 70°18'35.050 N 149°6'27.027 W 10,324.30 37.66 331.02 8,621.20 4,177.78 -1,872.42 5,963,709.97 610,114.74 70°18'35.559 N 149°6'27.860 W 10,421.51 37.67 332.44 8,698.15 4,230.09 -1,900.55 5,963,761.86 610,085.83 70°18'36.074 N 149°6'28.681 W 10,493.92 39.21 332.56 8,754.87 4,270.02 -1,921.33 5,963,801.47 610,064.45 70°18'36.466 N 149°6'29.287 W 10,591.76 37.59 331.75 8,831.54 4,323.76 -1,949.71 5,963,854.77 610,035.28 70°18'36.995 N 149°6'30.115 W 10,629.11 36.96 331.35 8,861.26 4,343.65 -1,960.49 5,963,874.50 610,024.21 70°18'37.190 N 149°6'30.430 W 10,659.86 37.13 331.14 8,885.81 4,359.89 -1,969.40 5,963,890.60 610,015.06 70°18'37.350 N 149°6'30.690 W 10,695.31 40.30 331.77 8,913.46 4,379.37 -1,979.99 5,963,909.91 610,004.18 70°18'37.542 N 149°6'30.999 W 10,725.17 43.26 331.25 8,935.73 4,396.85 -1,989.48 5,963,927.25 609,994.43 70°18'37.714 N 149°6'31.276 W 10,754.48 46.57 330.98 8,956.48 4,414.97 -1,999.47 5,963,945.22 609,984.17 70°18'37.892 N 149°6'31.568 W 10,787.63 49.51 329.41 8,978.64 4,436.35 -2,011.73 5,963,966.41 609,971.59 70°18'38.102 N 149°6'31.925 W 10,817.30 53.36 329.02 8,997.14 4,456.27 -2,023.60 5,963,986.16 609,959.42 70°18'38.298 N 149°6'32.272 W 10,849.55 55.83 328.23 9,015.82 4,478.71 -2,037.29 5,964,008.39 609,945.41 70°18'38.519 N 149°6'32.671 W 10,878.65 56.45 329.52 9,032.03 4,499.40 -2,049.78 5,964,028.88 609,932.61 70°18'38.722 N 149°6'33.036 W 10,902.77 58.99 328.48 9,044.91 4,516.87 -2,060.29 5,964,046.20 609,921.85 70°18'38.894 N 149°6'33.342 W 10,940.32 65.89 328.13 9,062.28 4,545.18 -2,077.77 5,964,074.24 609,903.95 70°18'39.172 N 149°6'33.852 W 9/26/2010 10:09:07AM Page 7 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 10,970.56 72.49 328.53 9,073.01 4,569.23 -2,092.60 5,964,098.06 609,888.76 70° 18'39.409 N 149°6'34.285 W 11,000.18 78.69 328.14 9,080.38 4,593.63 -2,107.65 5,964,122.23 609,873.35 70° 18'39.649 N 149°6'34.724 W 11,032.32 86.54 326.14 9,084.51 4,620.38 -2,124.94 5,964,148.72 609,855.67 70°18'39.912 N 149°6'35.229 W 11,064.35 91.48 323.22 9,085.06 4,646.50 -2,143.44 5,964,174.56 609,836.77 70°18'40.168 N 149°6'35.769 W 11,095.18 93.89 316.85 9,083.62 4,670.09 -2,163.21 5,964,197.85 609,816.66 70°18'40.400 N 149°6'36.346 W 11,127.53 94.76 315.37 9,081.18 4,693.34 -2,185.57 5,964,220.76 609,793.95 70°18'40.629 N 149°6'36.998 W 11,159.03 94.20 313.69 9,078.72 4,715.36 -2,207.96 5,964,242.44 609,771.24 70°18'40.846 N 149°6'37.651 W 11,188.53 94.58 311.31 9,076.46 4,735.23 -2,229.64 5,964,261.98 609,749.27 70°18'41.041 N 149°6'38.284 W 11,216.56 94.55 311.08 9,074.23 4,753.63 -2,250.67 5,964,280.07 609,727.97 70°18'41.222 N 149°6'38.897 W 11,257.94 95.53 311.84 9,070.59 4,780.92 -2,281.56 5,964,306.89 609,696.68 70°18'41.490 N 149°6'39.799 W 11,316.97 95.47 311.34 9,064.94 4,819.92 -2,325.51 5,964,345.23 609,652.16 70°18'41.874 N 149°6'41.081 W 11,377.34 94.09 310.98 9,059.90 4,859.52 -2,370.80 5,964,384.14 609,606.29 70°18'42.263 N 149°6'42.402 W 11,413.61 92.13 310.51 9,057.94 4,883.16 -2,398.24 5,964,407.37 609,578.50 70°18'42.495 N 149°6'43.203 W 11,445.71 91.64 309.16 9,056.88 4,903.71 -2,422.87 5,964,427.55 609,553.57 70°18'42.697 N 149°6'43.922 W 11,508.22 92.13 302.85 9,054.82 4,940.41 -2,473.39 5,964,463.50 609,502.51 70°18'43.058 N 149°6'45.396 W 11,541.65 96.37 299.85 9,052.35 4,957.76 -2,501.85 5,964,480.41 609,473.80 70°18'43.229 N 149°6'46.226 W 11,573.84 94.98 298.76 9,049.16 4,973.43 -2,529.78 5,964,495.67 609,445.64 70°18'43.383 N 149°6'47.041 W 11,604.09 95.23 297.20 9,046.47 4,987.57 -2,556.38 5,964,509.40 609,418.83 70°18'43.522 N 149°6'47.817 W 11,636.45 96.55 295.10 9,043.15 5,001.75 -2,585.28 5,964,523.16 609,389.73 70°18'43.661 N 149°6'48.660 W 11,668.11 96.79 293.52 9,039.47 5,014.70 -2,613.93 5,964,535.67 609,360.89 70°18'43.788 N 149°6'49.496 W 11,698.79 97.03 291.03 9,035.78 5,026.24 -2,642.11 5,964,546.79 609,332.54 70°18'43.902 N 149°6'50.318 W 11,729.11 97.51 289.16 9,031.94 5,036.58 -2,670.36 5,964,556.70 609,304.15 70°18'44.003 N 149°6'51.142 W 11,760.63 96.09 286.50 9,028.21 5,046.16 -2,700.15 5,964,565.84 609,274.22 70°18'44.097 N 149°6'52.011 W 11,788.29 95.22 284.66 9,025.48 5,053.55 -2,726.66 5,964,572.83 609,247.60 70°18'44.170 N 149°6'52.785 W 11,825.26 96.36 284.72 9,021.75 5,062.88 -2,762.24 5,964,581.63 609,211.89 70°18'44.262 N 149°6'53.823 W 11,856.53 96.59 284.31 9,018.23 5,070.66 -2,792.32 5,964,588.96 609,181.70 70°18'44.338 N 149°6'54.700 W 11,881.22 97.38 283.82 9,015.23 5,076.62 -2,816.09 5,964,594.56 609,157.84 70°18'44.397 N 149°6'55.394 W 11,919.14 96.91 284.43 9,010.51 5,085.80 -2,852.58 5,964,603.20 609,121.23 70°18'44.487 N 149°6'56.458 W 11,952.11 94.80 283.61 9,007.15 5,093.75 -2,884.40 5,964,610.67 609,089.30 70°18'44.565 N 149°6'57.387 W 11,977.82 93.54 281.86 9,005.28 5,099.40 -2,909.41 5,964,615.95 609,064.21 70°18'44.620 N 149°6'58.116 W 12,015.46 95.39 281.46 9,002.35 5,106.98 -2,946.16 5,964,622.98 609,027.35 70°18'44.695 N 149°6'59.188 W 12,048.99 94.98 279.28 8,999.32 5,112.99 -2,979.00 5,964,628.50 608,994.42 70°18'44.754 N 149°7'0.146 W 12,079.36 95.38 278.82 8,996.57 5,117.75 -3,008.87 5,964,632.81 608,964.49 70°18'44.800 N 149°7'1.018 W 12,109.37 96.14 279.58 8,993.56 5,122.52 -3,038.35 5,964,637.15 608,934.95 70°18'44.847 N 149°7'1.878 W 12,141.87 95.30 279.65 8,990.32 5,127.93 -3,070.23 5,964,642.07 608,902.99 70°18'44.900 N 149°7'2.808 W 12,170.75 95.52 277.43 8,987.60 5,132.20 -3,098.66 5,964,645.92 608,874.50 70°18'44.942 N 149°7'3.637 W 12,204.63 96.44 275.38 8,984.07 5,135.95 -3,132.14 5,964,649.18 608,840.97 70°18'44.979 N 149°7'4.614 W 12,235.45 96.25 274.70 8,980.66 5,138.65 -3,162.66 5,964,651.41 608,810.42 70°18'45.005 N 149°7'5.504 W 12,266.13 96.16 275.39 8,977.35 5,141.33 -3,193.04 5,964,653.64 608,780.01 70°18'45.031 N 149°7'6.390 W 12,294.64 97.06 276.82 8,974.07 5,144.34 -3,221.20 5,964,656.23 608,751.81 70°18'45.061 N 149°7'7.212 W 12,322.96 96.85 278.47 8,970.64 5,148.08 -3,249.06 5,964,659.55 608,723.90 70°18'45.098 N 149°7'8.025 W 12,359.98 96.81 278.79 8,966.23 5,153.59 -3,285.40 5,964,664.53 608,687.48 70°18'45.152 N 149°7'9.085 W 12,454.28 94.57 283.22 8,956.88 5,171.51 -3,377.48 5,964,681.06 608,595.15 70°18'45.327 N 149°7'11.771 W 12,487.92 94.49 283.22 8,954.22 5,179.18 -3,410.12 5,964,688.25 608,562.40 70°18'45.403 N 149°7'12.723 W 12,548.69 94.01 283.64 8,949.72 5,193.25 -3,469.07 5,964,701.44 608,503.26 70°18'45.541 N 149°7'14.443 W 12,638.00 94.41 284.28 8,943.16 5,214.74 -3,555.51 5,964,721.63 608,416.51 70°18'45.752 N 149°7'16.965 W 12,674.88 94.52 286.77 8,940.29 5,224.58 -3,590.93 5,964,730.94 608,380.95 70°18'45.848 N 149°7'17.998 W 12,708.39 93.22 289.21 8,938.03 5,234.91 -3,622.73 5,964,740.79 608,349.01 70°18'45.950 N 149°7'18.926 W 12,737.08 92.54 291.27 8,936.59 5,244.82 -3,649.61 5,964,750.30 608,321.98 70°18'46.047 N 149°7'19.710 W 12,772.27 94.08 293.37 8,934.56 5,258.16 -3,682.11 5,964,763.16 608,289.29 70°18'46.178 N 149°7'20.659 W 12,802.09 94.73 296.02 8,932.26 5,270.58 -3,709.12 5,964,775.17 608,262.10 70°18'46.300 N 149°7'21.447 W 12,831.72 94.43 297.88 8,929.90 5,283.96 -3,735.44 5,964,788.16 608,235.58 70°18'46.432 N 149°7'22.215 W 12,865.89 94.73 299.38 8,927.17 5,300.28 -3,765.34 5,964,804.03 608,205.45 70°18'46.592 N 149°7'23.087 W 12,899.61 94.77 300.04 8,924.38 5,316.94 -3,794.53 5,964,820.25 608,176.02 70°18'46.756 N 149°7'23.939 W 12,925.64 94.46 300.67 8,922.28 5,330.05 -3,816.91 5,964,833.02 608,153.44 70°18'46.885 N 149°7'24.592 W 9/26/2010 10:09:07AM Page 8 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19B Survey Calculation Method: Minimum Curvature Design: W-19B Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,960.02 95.00 301.77 8,919.45 5,347.81 -3,846.22 5,964,850.34 608,123.88 70° 18'47.059 N 149°7'25.447 W 12,988.10 94.31 304.08 8,917.17 5,363.02 -3,869.71 5,964,865.20 608,100.17 70°18'47.209 N 149°7'26.133 W 13,019.48 93.03 305.66 8,915.16 5,380.92 -3,895.40 5,964,882.72 608,074.22 70°18'47.385 N 149°7'26.882 W 13,051.47 90.39 306.02 8,914.21 5,399.64 -3,921.32 5,964,901.05 608,048.02 70°18'47.569 N 149°7'27.639 W 13,082.93 88.82 306.91 8,914.42 5,418.34 -3,946.61 5,964,919.36 608,022.45 70° 18'47.752 N 149°7'28.377 W 13,114.91 88.21 309.18 8,915.25 5,438.04 -3,971.79 5,964,938.68 607,996.99 70°18'47.946 N 149°7'29.112 W 13,145.74 87.34 310.66 8,916.45 5,457.81 -3,995.42 5,964,958.10 607,973.07 70°18'48.140 N 149°7'29.801 W 13,178.53 86.51 313.74 8,918.21 5,479.80 -4,019.67 5,964,979.72 607,948.49 70°18'48.356 N 149°7'30.509 W 13,207.99 85.19 317.13 8,920.34 5,500.73 -4,040.28 5,965,000.34 607,927.57 70°18'48.562 N 149°7'31.111 W 13,239.95 84.62 319.49 8,923.18 5,524.50 -4,061.46 5,965,023.79 607,906.05 70° 18'48.796 N 149°7'31.729 W 13,270.79 85.57 321.79 8,925.82 5,548.26 -4,080.94 5,965,047.25 607,886.21 70° 18'49.029 N 149°7'32.298 W 13,302.35 85.23 323.97 8,928.35 5,573.34 -4,099.92 5,965,072.04 607,866.86 70° 18'49.276 N 149°7'32.852 W 13,336.56 85.60 326.73 8,931.08 5,601.39 -4,119.31 5,965,099.80 607,847.06 70°18'49.552 N 149°7'33.418 W 13,368.71 85.87 330.15 8,933.47 5,628.70 -4,136.09 5,965,126.86 607,829.88 70°18'49.820 N 149°7'33.908 W 13,396.31 84.94 332.60 8,935.69 5,652.85 -4,149.27 5,965,150.80 607,816.34 70°18'50.058 N 149°7'34.293 W 13,432.67 80.59 334.14 8,940.26 5,685.08 -4,165.43 5,965,182.79 607,799.70 70° 18'50.375 N 149°7'34.765 W 13,463.41 79.57 335.69 8,945.56 5,712.51 -4,178.27 5,965,210.02 607,786.45 70° 18'50.644 N 149°7'35.140 W 13,492.16 78.57 336.43 8,951.01 5,738.31 -4,189.73 5,965,235.64 607,774.62 70° 18'50.898 N 149°7'35.474 W 13,523.04 77.31 338.67 8,957.46 5,766.21 -4,201.26 5,965,263.37 607,762.67 70°18'51.172 N 149°7'35.811 W 13,557.92 76.36 338.85 8,965.41 5,797.87 -4,213.56 5,965,294.84 607,749.90 70°18'51.484 N 149°7'36.171 W 13,585.24 75.04 339.52 8,972.16 5,822.61 -4,222.97 5,965,319.44 607,740.12 70°18'51.727 N 149°7'36.445 W 13,618.35 71.69 339.62 8,981.63 5,852.34 -4,234.04 5,965,348.99 607,728.61 70° 18'52.019 N 149°7'36.769 W 13,647.55 71.48 339.41 8,990.86 5,878.29 -4,243.74 5,965,374.79 607,718.53 70° 18'52.274 N 149°7'37.052 W 13,679.14 71.42 339.63 9,000.91 5,906.35 -4,254.22 5,965,402.69 607,707.63 70° 18'52.550 N 149°7'37.358 W 13,720.42 71.42 339.63 9,014.06 5,943.03 -4,267.84 5,965,439.16 607,693.47 70°18'52.911 N 149°7'37.756 W Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 2,688.37 2,683.17 13 3/8" 13.375 17.500 10,528.87 8,782.06 INTERMEDIATE CASING 1 9.625 12.250 Checked By: Approved By: Date: 9/26/2010 10:09:07AM Page 9 COMPASS 2003.16 Build 73 North America - ALASKA - BP Prudhoe Bay PB W Pad W-19 W-19BPB1 Design: W-19BPB1 Survey Report - Geographic 26 September, 2010 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM .16-Anc Prod-WH24P Project Prudhoe Bay,GPB, PRUDHOE BAY Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W Position Uncertainty: 0.00 ft Slot Radius: 0.000 in Grid Convergence: 0.84 ° Well W-19,W-19 Well Position +N/-S 0.00 ft Northing: 5,959,560.93 ft Latitude: 70°17'54.473 N +E/-W 0.00 ft Easting: 612,049.07 ft Longitude: 149°5'33.247 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 47.83ft Wellbore W-19BPB1 Magnetics Model Name Sample Date Declination Dip Angle` Field Strength (°) (°) (nT) BGGM2007 12/3/2008 22.73 80.88 57,668 BGGM2009 8/1/2010 21.90 80.89 57,684 Design W-19BPB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 'Vertical Section: Depth From(ND) +N/-5 +E/-W Direction (ft) (ft) : (ft) (') 33.97 0.00 0.00 351.06 Survey Program Date 8/25/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 34.22 2,697.57 1 :Schlumberger GCT multishot(W-19) GCT-MS Schlumberger GCT multishot 2,716.00 3,137.00 Gyro(W-19BPB1) GYD-GC-SS Gyrodata gyro single shots 3,186.84 9,320.26 MWD Run 100(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 9,378.39 10,493.92 MWD Run 200(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,591.76 10,659.86 MWD Run 300(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,695.31 11,188.53 MWD Run 400 500(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 11,216.56 12,451.90 MWD Run 600 700(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 9/26/2010 9:55:38AM Page 2 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Welibore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 33.97 0.00 0.00 33.97 0.00 0.00 5,959,560.93 612,049.07 70° 17'54.473 N 149°5'33.247 W 34.22 0.35 284.32 34.22 0.00 0.00 5,959,560.93 612,049.07 70° 17'54.473 N 149°5 33.247 W 44.82 0.18 7.99 44.82 0.02 -0.03 5,959,560.95 612,049.04 70°17'54.474 N 149°5 33.248 W 55.32 0.13 86.49 55.32 0.04 -0.02 5,959,560.97 612,049.05 70°17'54.474 N 149°5'33.247 W 65.92 0.15 79.75 65.92 0.04 0.01 5,959,560.97 612,049.08 70°17'54.474 N 149°5 33.247 W 76.57 0.17 78.70 76.57 0.05 0.04 5,959,560.98 612,049.11 70°17'54.474 N 149°5'33.246 W 87.17 0.18 79.58 87.17 0.06 0.07 5,959,560.99 612,049.14 70°17'54.474 N 149°5'33.245 W 97.87 0.18 82.81 97.87 0.06 0.10 5,959,560.99 612,049.17 70°17'54.474 N 149°5'33.244 W 104.92 0.18 84.27 104.92 0.06 0.13 5,959,561.00 612,049.20 70°17'54.474 N 149°5'33.243 W 116.52 0.15 89.71 116.52 0.07 0.16 5,959,561.00 612,049.23 70°17'54.474 N 149°5'33.242 W 133.22 0.15 105.42 133.22 0.06 0.20 5,959,560.99 612,049.27 70°17'54.474 N 149°5'33.241 W 150.02 0.15 113.69 150.02 0.05 0.24 5,959,560.98 612,049.31 70°17'54.474 N 149°5'33.240 W 166.72 0.12 114.02 166.72 0.03 0.28 5,959,560.96 612,049.35 70°17'54.474 N 149°5'33.239 W 183.37 0.10 154.23 183.37 0.01 0.30 5,959,560.94 612,049.37 70°17'54.474 N 149°5'33.238 W 199.97 0.20 195.05 199.97 -0.03 0.30 5,959,560.90 612,049.37 70°17'54.473 N 149°5'33.238 W 216.42 0.28 182.37 216.42 -0.10 0.29 5,959,560.83 612,049.36 70°17'54.472 N 149°5'33.239 W 232.92 0.27 163.60 232.92 -0.18 0.30 5,959,560.76 612,049.37 70°17'54.472 N 149°5'33.238 W 249.42 0.25 154.66 249.42 -0.25 0.33 5,959,560.69 612,049.40 70°17'54.471 N 149°5'33.237 W 265.92 0.23 147.75 265.92 -0.31 0.36 5,959,560.63 612,049.44 70°17'54.470 N 149°5'33.237 W 282.27 0.20 143.52 282.27 -0.36 0.39 5,959,560.58 612,049.47 70°17'54.470 N 149°5'33.236 W 298.52 0.17 142.77 298.52 -0.40 0.43 5,959,560.54 612,049.50 70°17'54.470 N 149°5'33.235 W 314.77 0.13 149.48 314.77 -0.43 0.45 5,959,560.50 612,049.53 70°17'54.469 N 149°5'33.234 W 331.22 0.15 167.05 331.22 -0.47 0.46 5,959,560.46 612,049.54 70° 17'54.469 N 149°5'33.233 W 347.52 0.22 178.27 347.52 -0.52 0.47 5,959,560.41 612,049.55 70° 17'54.468 N 149°5'33.233 W 363.97 0.28 175.63 363.97 -0.60 0.47 5,959,560.34 612,049.55 70° 17'54.468 N 149°5 33.233 W 380.42 0.32 170.91 380.42 -0.68 0.48 5,959,560.26 612,049.56 70° 17'54.467 N 149°5'33.233 W 396.87 0.33 165.25 396.87 -0.77 0.50 5,959,560.17 612,049.59 70°17'54.466 N 149°5'33.232 W 413.37 0.30 154.77 413.37 -0.86 0.53 5,959,560.08 612,049.62 70°17'54.465 N 149°5'33.231 W 429.82 0.23 139.95 429.82 -0.92 0.57 5,959,560.02 612,049.66 70°17'54.464 N 149°5'33.230 W 446.32 0.17 130.68 446.32 -0.96 0.61 5,959,559.98 612,049.70 70°17'54.464 N 149°5'33.229 W 462.72 0.10 143.97 462.72 -0.99 0.64 5,959,559.95 612,049.73 70° 17'54.464 N 149°5 33.228 W 479.22 0.13 178.83 479.22 -1.02 0.65 5,959,559.92 612,049.73 70° 17'54.463 N 149°5'33.228 W 495.72 0.22 191.02 495.72 -1.07 0.64 5,959,559.87 612,049.73 70°17'54.463 N 149°5 33.228 W 512.17 0.23 173.68 512.17 -1.13 0.64 5,959,559.81 612,049.73 70° 17'54.462 N 149°5'33.228 W 528.67 0.20 155.07 528.67 -1.19 0.66 5,959,559.75 612,049.75 70°17'54.462 N 149°5 33.228 W 545.17 0.13 128.17 545.17 -1.23 0.68 5,959,559.71 612,049.77 70° 17'54.461 N 149°5'33.227 W 561.67 0.03 174.27 561.67 -1.25 0.70 5,959,559.69 612,049.79 70°17'54.461 N 149°5'33.227 W 578.12 0.08 225.78 578.12 -1.26 0.69 5,959,559.68 612,049.78 70° 17'54.461 N 149°5'33.227 W 594.67 0.18 203.94 594.67 -1.29 0.67 5,959,559.65 612,049.76 70°17'54.461 N 149°5'33.227 W 611.17 0.20 183.94 611.17 -1.34 0.66 5,959,559.60 612,049.75 70°17'54.460 N 149°5'33.228 W 627.67 0.17 155.13 627.67 -1.39 0.67 5,959,559.55 612,049.76 70°17'54.460 N 149°5 33.228 W 643.97 0.10 119.32 643.97 -1.42 0.69 5,959,559.52 612,049.78 70°17'54.459 N 149°5'33.227 W 660.07 0.03 24.76 660.07 -1.43 0.71 5,959,559.51 612,049.80 70° 17'54.459 N 149°5'33.226 W 676.07 0.10 271.27 676.07 -1.42 0.69 5,959,559.52 612,049.78 70° 17'54.459 N 149°5'33.227 W 692.07 0.18 221.17 692.07 -1.44 0.66 5,959,559.50 612,049.75 70° 17'54.459 N 149°5'33.228 W 708.12 0.20 196.38 708.12 -1.49 0.64 5,959,559.45 612,049.73 70° 17'54.459 N 149°5'33.228 W 724.22 0.17 160.60 724.22 -1.54 0.64 5,959,559.40 612,049.73 70° 17'54.458 N 149°5'33.228 W 740.22 0.10 106.17 740.22 -1.56 0.66 5,959,559.38 612,049.75 70° 17'54.458 N 149°5'33.228 W 756.17 0.05 15.34 756.17 -1.56 0.67 5,959,559.38 612,049.77 70° 17'54.458 N 149°5'33.227 W 772.07 0.08 282.23 772.07 -1.55 0.67 5,959,559.39 612,049.76 70° 17'54.458 N 149°5'33.228 W 787.77 0.15 236.57 787.77 -1.56 0.64 5,959,559.38 612,049.73 70° 17'54.458 N 149°5'33.228 W 803.37 0.18 208.61 803.37 -1.59 0.61 5,959,559.35 612,049.70 70° 17'54.458 N 149°5'33.229 W 819.07 0.17 166.85 819.07 -1.64 0.60 5,959,559.30 612,049.70 70°17'54.457 N 149°5'33.229 W 834.87 0.10 119.91 834.87 -1.67 0.62 5,959,559.27 612,049.71 70°17'54.457 N 149°5'33.229 W 850.82 0.07 54.71 850.82 -1.67 0.64 5,959,559.27 612,049.73 70°17'54.457 N 149°5'33.228 W 9/26/2010 9:55:38AM Page 3 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B©86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well W-19 North Reference:; True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM .16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 866.72 0.07 305.02 866.72 -1.66 0.64 5,959,559.28 612,049.73 70°17'54.457 N 149°5'33.228 W 882.52 0.13 224.78 882.52 -1.66 0.62 5,959,559.28 612,049.71 70°17'54.457 N 149°5'33.229 W 898.37 0.18 189.99 898.37 -1.70 0.60 5,959,559.24 612,049.70 70°17'54.457 N 149°5'33.229 W 914.22 0.17 150.72 914.22 -1.75 0.61 5,959,559.19 612,049.71 70°17'54.456 N 149°5'33.229 W 930.07 0.12 106.69 930.07 -1.77 0.64 5,959,559.17 612,049.73 70°17'54.456 N 149°5'33.228 W 946.27 0.05 42.84 946.27 -1.77 0.66 5,959,559.17 612,049.75 70°17'54.456 N 149°5'33.228 W 962.47 0.07 306.24 962.47 -1.76 0.65 5,959,559.18 612,049.75 70°17'54.456 N 149°5'33.228 W 978.77 0.13 230.04 978.77 -1.77 0.63 5,959,559.17 612,049.73 70°17'54.456 N 149°5'33.229 W 995.02 0.20 198.10 995.02 -1.80 0.61 5,959,559.13 612,049.71 70° 17'54.456 N 149°5'33.229 W 1,011.32 0.18 169.19 1,011.32 -1.86 0.61 5,959,559.08 612,049.70 70° 17'54.455 N 149°5'33.229 W 1,027.62 0.15 139.02 1,027.62 -1.90 0.62 5,959,559.04 612,049.72 70°17'54.455 N 149°5'33.229 W 1,043.92 0.12 125.60 1,043.92 -1.92 0.65 5,959,559.02 612,049.75 70°17'54.455 N 149°5'33.228 W 1,060.27 0.10 154.36 1,060.27 -1.95 0.67 5,959,558.99 612,049.77 70°17'54.454 N 149°5'33.227 W 1,076.47 0.15 190.91 1,076.47 -1.98 0.67 5,959,558.96 612,049.77 70°17'54.454 N 149°5'33.227 W 1,092.77 0.25 194.23 1,092.77 -2.04 0.66 5,959,558.90 612,049.76 70°17'54.453 N 149°5'33.228 W 1,109.07 0.30 180.10 1,109.07 -2.11 0.65 5,959,558.83 612,049.75 70°17'54.453 N 149°5'33.228 W 1,125.42 0.27 155.12 1,125.41 -2.19 0.67 5,959,558.75 612,049.77 70°17'54.452 N 149°5'33.228 W 1,141.72 0.18 140.69 1,141.71 -2.25 0.70 5,959,558.70 612,049.80 70°17'54.451 N 149°5'33.227 W 1,158.02 0.12 159.33 1,158.01 -2.28 0.72 5,959,558.66 612,049.83 70°17'54.451 N 149°5'33.226 W 1,174.32 0.15 187.87 1,174.31 -2.32 0.73 5,959,558.62 612,049.83 70°17'54.451 N 149°5'33.226 W 1,190.62 0.25 194.73 1,190.61 -2.37 0.71 5,959,558.57 612,049.82 70° 17'54.450 N 149°5'33.226 W 1,206.92 0.27 184.21 1,206.91 -2.45 0.70 5,959,558.49 612,049.81 70° 17'54.449 N 149°5'33.227 W 1,223.17 0.22 159.18 1,223.16 -2.51 0.71 5,959,558.43 612,049.82 70° 17'54.449 N 149°5'33.226 W 1,239.52 0.13 106.34 1,239.51 -2.55 0.74 5,959,558.39 612,049.85 70° 17'54.448 N 149°5'33.225 W 1,255.77 0.10 50.40 1,255.76 -2.54 0.77 5,959,558.40 612,049.88 70° 17'54.448 N 149°5'33.225 W 1,272.07 0.12 347.70 1,272.06 -2.52 0.78 5,959,558.42 612,049.88 70° 17'54.449 N 149°5'33.224 W 1,288.12 0.40 292.45 1,288.11 -2.48 0.72 5,959,558.46 612,049.83 70°17'54.449 N 149°5'33.226 W 1,304.42 1.13 279.09 1,304.41 -2.43 0.51 5,959,558.50 612,049.62 70° 17'54.449 N 149°5'33.232 W 1,320.67 2.33 283.17 1,320.65 -2.33 0.03 5,959,558.60 612,049.13 70° 17'54.450 N 149°5'33.246 W 1,336.82 3.75 284.41 1,336.78 -2.13 -0.80 5,959,558.79 612,048.30 70°17'54.453 N 149°5'33.270 W 1,352.97 4.92 283.87 1,352.89 -1.83 -1.99 5,959,559.07 612,047.11 70° 17'54.455 N 149°5'33.305 W 1,369.27 5.78 283.28 1,369.11 -1.47 -3.46 5,959,559.40 612,045.63 70°17'54.459 N 149°5'33.348 W 1,385.47 6.67 282.82 1,385.22 -1.08 -5.17 5,959,559.78 612,043.91 70° 17'54.463 N 149°5'33.398 W 1,401.37 7.58 282.43 1,401.00 -0.65 -7.10 5,959,560.18 612,041.98 70° 17'54.467 N 149°5'33.454 W 1,417.27 8.28 282.39 1,416.74 -0.18 -9.24 5,959,560.62 612,039.83 70° 17'54.472 N 149°5'33.516 W 1,433.32 8.75 282.68 1,432.62 0.34 -11.56 5,959,561.10 612,037.51 70° 17'54.477 N 149°5'33.584 W 1,449.37 9.13 283.04 1,448.47 0.90 -13.99 5,959,561.62 612,035.07 70° 17'54.482 N 149°5'33.655 W 1,465.32 9.40 283.60 1,464.21 1.49 -16.49 5,959,562.17 612,032.56 70°17'54.488 N 149°5'33.728 W 1,481.42 9.65 284.42 1,480.09 2.13 -19.08 5,959,562.78 612,029.97 70°17'54.494 N 149°5'33.803 W 1,497.57 9.87 285.28 1,496.01 2.83 -21.72 5,959,563.44 612,027.31 70°17'54.501 N 149°5'33.880 W 1,513.62 10.02 286.33 1,511.82 3.59 -24.39 5,959,564.16 612,024.63 70°17'54.509 N 149°5'33.958 W 1,529.67 10.13 287.39 1,527.62 4.40 -27.08 5,959,564.93 612,021.93 70°17'54.517 N 149°5'34.036 W 1,545.77 10.20 288.14 1,543.47 5.27 -29.78 5,959,565.76 612,019.22 70°17'54.525 N 149°5'34.115 W 1,561.87 10.22 288.62 1,559.31 6.17 -32.49 5,959,566.62 612,016.49 70°17'54.534 N 149°5'34.194 W 1,577.92 10.15 288.97 1,575.11 7.09 -35.18 5,959,567.49 612,013.79 70°17'54.543 N 149°5'34.272 W 1,594.02 10.00 289.28 1,590.96 8.01 -37.84 5,959,568.37 612,011.12 70°17'54.552 N 149°5'34.350 W 1,610.02 9.72 289.80 1,606.72 8.92 -40.42 5,959,569.25 612,008.52 70°17'54.561 N 149°5'34.425 W 1,626.02 9.17 290.15 1,622.51 9.82 -42.89 5,959,570.11 612,006.04 70°17'54.570 N 149°5'34.497 W 1,642.02 8.52 290.23 1,638.32 10.67 -45.20 5,959,570.92 612,003.72 70° 17'54.578 N 149°5'34.565 W 1,658.07 8.05 290.21 1,654.20 11.47 -47.37 5,959,571.69 612,001.54 70° 17'54.586 N 149°5'34.628 W 1,674.07 7.67 290.07 1,670.05 12.22 -49.42 5,959,572.41 611,999.48 70° 17'54.594 N 149°5'34.688 W 1,690.17 7.32 290.09 1,686.01 12.94 -51.39 5,959,573.10 611,997.49 70° 17'54.601 N 149°5'34.745 W 1,706.32 6.87 290.22 1,702.04 13.63 -53.27 5,959,573.76 611,995.61 70° 17'54.607 N 149°5'34.800 W 1,722.42 6.32 290.22 1,718.03 14.27 -55.00 5,959,574.38 611,993.87 70° 17'54.614 N 149°5'34.850 W 1,738.42 5.88 290.06 1,733.94 14.86 -56.60 5,959,574.94 611,992.26 70°17'54.620 N 149°5'34.897 W 9/26/2010 9:55:38AM Page 4 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting 1 (ft) (0) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 1,754.52 5.47 289.77 1,749.96 15.40 -58.09 5,959,575.46 611,990.76 70° 17'54.625 N 149°5'34.941 W 1,770.62 5.13 289.42 1,765.99 15.90 -59.50 5,959,575.94 611,989.35 70°17'54.630 N 149°5'34.981 W 1,786.62 4.80 289.10 1,781.93 16.35 -60.80 5,959,576.37 611,988.04 70°17'54.634 N 149°5'35.019 W 1,802.57 4.50 288.82 1,797.83 16.77 -62.03 5,959,576.78 611,986.81 70°17'54.638 N 149°5 35.055 W 1,818.47 4.32 289.33 1,813.68 17.17 -63.18 5,959,577.16 611,985.65 70°17'54.642 N 149°5'35.089 W 1,834.17 4.15 289.77 1,829.34 17.56 -64.27 5,959,577.53 611,984.55 70°17'54.646 N 149°5'35.121 W 1,849.92 3.97 289.41 1,845.05 17.94 -65.32 5,959,577.89 611,983.49 70°17'54.650 N 149°5 35.151 W 1,865.67 3.83 289.03 1,860.76 18.29 -66.34 5,959,578.23 611,982.47 70°17'54.653 N 149°5'35.181 W 1,881.52 3.72 288.87 1,876.58 18.63 -67.32 5,959,578.55 611,981.48 70°17'54.657 N 149°5'35.210 W 1,897.32 3.58 290.02 1,892.35 18.96 -68.27 5,959,578.87 611,980.53 70°17'54.660 N 149°5'35.237 W 1,913.02 3.42 292.60 1,908.02 19.31 -69.16 5,959,579.20 611,979.63 70°17'54.663 N 149°5'35.263 W ' 1,928.72 3.23 292.91 1,923.69 19.66 -70.00 5,959,579.54 611,978.79 70°17'54.667 N 149°5'35.288 W ' 1,944.27 2.93 292.15 1,939.22 19.98 -70.78 5,959,579.85 611,978.01 70°17'54.670 N 149°5'35.310 W 1,959.72 2.63 291.84 1,954.65 20.26 -71.47 5,959,580.12 611,977.31 70°17'54.673 N 149°5'35.330 W 1,975.22 2.42 290.67 1,970.14 20.51 -72.11 5,959,580.36 611,976.67 70°17'54.675 N 149°5'35.349 W 1,990.67 2.22 289.32 1,985.57 20.72 -72.69 5,959,580.57 611,976.08 70°17'54.677 N 149°5'35.366 W 2,006.27 2.10 288.08 2,001.16 20.91 -73.25 5,959,580.75 611,975.52 70°17'54.679 N 149°5 35.382 W 2,021.67 2.03 287.85 2,016.55 21.08 -73.78 5,959,580.91 611,974.99 70°17'54.681 N 149°5'35.398 W 2,037.02 1.97 288.53 2,031.89 21.25 -74.29 5,959,581.07 611,974.48 70°17'54.682 N 149°5'35.413 W t 2,052.27 1.90 292.48 2,047.13 21.43 -74.77 5,959,581.24 611,974.00 70°17'54.684 N 149°5'35.427 W 2,067.52 1.75 297.59 2,062.38 21.64 -75.21 5,959,581.44 611,973.55 70°17'54.686 N 149°5'35.439 W ■ 2,082.82 1.68 301.25 2,077.67 21.86 -75.61 5,959,581.66 611,973.15 70°17'54.688 N 149°5'35.451 W 2,098.32 1.67 303.88 2,093.16 22.10 -75.99 5,959,581.90 611,972.76 70°17'54.691 N 149°5 35.462 W ` 2,113.97 1.50 303.14 2,108.81 22.34 -76.35 5,959,582.13 611,972.40 70°17'54.693 N 149°5'35.473 W ` 2,129.62 1.27 303.23 2,124.45 22.55 -76.67 5,959,582.33 611,972.08 70°17'54.695 N 149°5'35.482 W 2,145.27 1.08 303.79 2,140.10 22.73 -76.94 5,959,582.51 611,971.81 70°17'54.697 N 149°5'35.490 W 2,160.87 1.02 302.07 2,155.70 22.88 -77.18 5,959,582.66 611,971.57 70°17'54.698 N 149°5 35.497 W 2,176.57 0.97 301.47 2,171.39 23.03 -77.41 5,959,582.80 611,971.33 70°17'54.700 N 149°5'35.504 W 2,192.37 0.95 303.25 2,187.19 23.17 -77.63 5,959,582.94 611,971.11 70°17'54.701 N 149°5'35.510 W 2,208.27 0.97 302.44 2,203.09 23.31 -77.85 5,959,583.08 611,970.88 70°17 54.703 N 149°5'35.517 W 2,224.12 0.95 304.58 2,218.94 23.46 -78.08 5,959,583.22 611,970.66 70°17'54.704 N 149°5'35.523 W 2,239.92 0.97 309.47 2,234.73 23.62 -78.29 5,959,583.38 611,970.45 70°17'54.706 N 149°5'35.529 W 2,255.82 0.95 310.14 2,250.63 23.79 -78.49 5,959,583.54 611,970.24 70°17'54.707 N 149°5'35.535 W 2,271.72 0.90 310.74 2,266.53 23.96 -78.69 5,959,583.71 611,970.04 70°17'54.709 N 149°5'35.541 W 2,287.52 0.85 311.22 2,282.33 24.11 -78.87 5,959,583.86 611,969.86 70°17'54.711 N 149°5'35.546 W 2,303.37 0.78 311.32 2,298.18 24.26 -79.04 5,959,584.01 611,969.69 70°17'54.712 N 149°5'35.551 W 2,319.17 0.77 310.41 2,313.98 24.40 -79.20 5,959,584.15 611,969.52 70°17'54.713 N 149°5'35.556 W 2,334.97 0.73 304.32 2,329.77 24.53 -79.36 5,959,584.27 611,969.36 70°17'54.715 N 149°5'35.561 W 2,350.77 0.62 302.35 2,345.57 24.63 -79.52 5,959,584.37 611,969.20 70°17'54.716 N 149°5'35.565 W 2,366.62 0.58 310.74 2,361.42 24.73 -79.65 5,959,584.47 611,969.06 70°17'54.717 N 149°5'35.569 W 2,382.47 0.60 315.10 2,377.27 24.84 -79.77 5,959,584.58 611,968.94 70°17'54.718 N 149°5'35.572 W 2,398.32 0.58 314.71 2,393.12 24.96 -79.89 5,959,584.69 611,968.83 70°17'54.719 N 149°5'35.576 W 2,414.22 0.55 315.36 2,409.02 25.07 -80.00 5,959,584.80 611,968.71 70°17'54.720 N 149°5 35.579 W 2,430.12 0.53 315.92 2,424.92 25.17 -80.10 5,959,584.90 611,968.61 70°17'54.721 N 149°5'35.582 W 2,446.02 0.47 317.18 2,440.82 25.27 -80.20 5,959,585.00 611,968.51 70°17 54.722 N 149°5'35.585 W 2,461.92 0.40 318.95 2,456.72 25.36 -80.28 5,959,585.09 611,968.43 70°17'54.723 N 149°5'35.587 W 2,477.87 0.35 309.06 2,472.67 25.44 -80.35 5,959,585.16 611,968.35 70°17 54.724 N 149°5'35.589 W 2,493.77 0.23 295.42 2,488.57 25.48 -80.42 5,959,585.21 611,968.29 70°17'54.724 N 149°5 35.591 W 2,509.67 0.18 315.08 2,504.47 25.51 -80.47 5,959,585.24 611,968.24 70°17'54.724 N 149°5'35.593 W 2,525.47 0.22 335.01 2,520.27 25.56 -80.50 5,959,585.28 611,968.21 70°17'54.725 N 149°5'35.594 W 2,541.32 0.25 328.89 2,536.12 25.61 -80.53 5,959,585.34 611,968.18 70°17'54.725 N 149°5'35.595 W 2,557.22 0.25 323.65 2,552.02 25.67 -80.57 5,959,585.40 611,968.14 70°17'54.726 N 149°5'35.596 W i 2,573.02 0.25 320.15 2,567.82 25.73 -80.61 5,959,585.45 611,968.09 70°17'54.726 N 149°5'35.597 W p 2,588.82 0.25 306.20 2,583.62 25.77 -80.66 5,959,585.49 611,968.04 70°17'54.727 N 149°5'35.598 W 2,604.72 0.22 279.42 2,599.52 25.80 -80.72 5,959,585.52 611,967.98 70°17'54.727 N 149°5'35.600 W 9/26/2010 9:55:38AM Page 5 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (0) (0) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 2,620.32 0.18 260.58 2,615.12 25.80 -80.77 5,959,585.52 611,967.93 70° 17'54.727 N 149°5'35.602 W 2,635.87 0.15 246.10 2,630.67 25.79 -80.81 5,959,585.51 611,967.89 70° 17'54.727 N 149°5'35.603 W 2,651.27 0.07 207.76 2,646.07 25.77 -80.84 5,959,585.49 611,967.87 70°17'54.727 N 149°5'35.603 W 2,666.52 0.02 174.87 2,661.32 25.76 -80.84 5,959,585.48 611,967.86 70°17'54.727 N 149°5'35.604 W 2,681.97 0.05 155.26 2,676.77 25.75 -80.84 5,959,585.47 611,967.86 70°17'54.727 N 149°5'35.604 W 2,697.57 0.08 102.07 2,692.37 25.74 -80.82 5,959,585.46 611,967.88 70°17'54.727 N 149°5 35.603 W 2,716.00 0.61 12.71 2,710.80 25.84 -80.79 5,959,585.56 611,967.91 70°17'54.728 N 149°5 35.602 W 2,766.00 2.17 240.80 2,760.79 25.63 -81.56 5,959,585.34 611,967.15 70°17'54.726 N 149°5'35.625 W 2,793.00 2.76 238.62 2,787.76 25.05 -82.56 5,959,584.74 611,966.15 70°17'54.720 N 149°5'35.654 W 2,852.00 2.74 244.22 2,846.69 23.69 -85.04 5,959,583.35 611,963.69 70°17'54.706 N 149°5'35.726 W 2,895.00 3.32 256.89 2,889.63 22.96 -87.18 5,959,582.59 611,961.57 70°17'54.699 N 149°5'35.788 W 2,948.00 6.47 275.94 2,942.44 22.92 -91.65 5,959,582.48 611,957.10 70°17'54.699 N 149°5'35.919 W 2,979.00 8.52 278.62 2,973.17 23.45 -95.65 5,959,582.95 611,953.09 70°17'54.704 N 149°5'36.035 W 3,011.00 11.77 282.89 3,004.67 24.53 -101.18 5,959,583.95 611,947.54 70°17'54.715 N 149°5'36.197 W 3,043.00 14.19 284.35 3,035.85 26.23 -108.16 5,959,585.54 611,940.54 70°17'54.731 N 149°5'36.400 W 3,072.00 14.91 285.36 3,063.92 28.10 -115.20 5,959,587.31 611,933.47 70°17'54.750 N 149°5'36.605 W 3,137.00 15.28 287.97 3,126.67 32.96 -131.42 5,959,591.92 611,917.19 70°17'54.798 N 149°5'37.078 W 3,186.84 15.28 296.36 3,174.76 37.90 -143.55 5,959,596.68 611,904.98 70°17'54.846 N 149°5'37.432 W 3,282.10 14.89 305.51 3,266.75 50.59 -164.76 5,959,609.05 611,883.59 70°17'54.971 N 149°5'38.050 W 3,377.75 15.40 312.98 3,359.08 66.38 -184.06 5,959,624.56 611,864.06 70°17'55.126 N 149°5'38.613 W 3,473.23 16.53 324.40 3,450.90 86.08 -201.24 5,959,643.99 611,846.58 70°17'55.320 N 149°5 39.114 W 3,567.62 18.97 333.16 3,540.81 110.69 -215.99 5,959,668.38 611,831.47 70°17'55.562 N 149°5'39.544 W 3,658.50 19.99 337.92 3,626.49 138.27 -228.50 5,959,695.77 611,818.55 70°17'55.833 N 149°5'39.908 W 3,756.37 23.13 346.04 3,717.52 172.44 -239.43 5,959,729.77 611,807.11 70°17'56.169 N 149°5'40.227 W 3,850.87 27.73 348.62 3,802.85 212.03 -248.25 5,959,769.22 611,797.70 70°17'56.559 N 149°5'40.484 W 3,943.79 29.96 351.46 3,884.24 256.18 -255.97 5,959,813.24 611,789.33 70°17'56.993 N 149°5'40.709 W 4,040.56 34.58 350.06 3,966.04 307.15 -264.30 5,959,864.08 611,780.24 70°17'57.494 N 149°5'40.952 W 4,132.37 37.94 350.50 4,040.06 360.66 -273.46 5,959,917.45 611,770.29 70°17'58.020 N 149°5'41.219 W 4,227.18 41.16 350.33 4,113.15 420.18 -283.51 5,959,976.80 611,759.35 70°17'58.606 N 149°5'41.512 W 4,321.87 42.55 351.76 4,183.68 482.59 -293.34 5,960,039.05 611,748.60 70°17'59.220 N 149°5'41.799 W 4,416.17 43.86 349.83 4,252.42 546.31 -303.67 5,960,102.60 611,737.31 70°17'59.846 N 149°5'42.100 W 4,510.06 44.31 344.94 4,319.88 610.01 -317.94 5,960,166.08 611,722.09 70°18'0.473 N 149°5'42.516 W 4,604.23 43.26 344.85 4,387.87 672.92 -334.92 5,960,228.73 611,704.18 70°18'1.092 N 149°5'43.011 W 4,699.35 42.43 344.42 4,457.61 735.29 -352.06 5,960,290.83 611,686.12 70°18'1.705 N 149°5'43.511 W 4,795.54 43.44 342.85 4,528.03 798.15 -370.53 5,960,353.40 611,666.72 70°18'2.323 N 149°5'44.049 W 4,892.60 44.19 341.12 4,598.07 862.05 -391.31 5,960,416.97 611,644.98 70°18'2.952 N 149°5'44.655 W 4,986.18 44.36 341.30 4,665.07 923.89 -412.36 5,960,478.49 611,623.02 70°18'3.560 N 149°5'45.269 W 5,080.13 44.17 341.12 4,732.35 985.98 -433.48 5,960,540.25 611,600.98 70°18'4.170 N 149°5'45.885 W 5,172.00 44.07 340.84 4,798.30 1,046.44 -454.32 5,960,600.39 611,579.24 70°18'4.765 N 149°5'46.493 W 5,266.53 43.58 339.94 4,866.50 1,108.10 -476.29 5,960,661.71 611,556.36 70°18'5.371 N 149°5'47.133 W 5,363.32 43.46 341.86 4,936.69 1,171.08 -498.10 5,960,724.35 611,533.61 70°18'5.991 N 149°5'47.769 W 5,454.53 43.09 343.52 5,003.10 1,230.76 -516.70 5,960,783.75 611,514.12 70°18'6.578 N 149°5'48.312 W 5,549.23 43.00 343.04 5,072.31 1,292.67 -535.30 5,960,845.36 611,494.61 70°18'7.187 N 149°5'48.854 W 5,640.57 42.61 343.29 5,139.32 1,352.07 -553.27 5,960,904.49 611,475.75 70°18'7.771 N 149°5'49.378 W 5,736.87 42.54 342.95 5,210.24 1,414.42 -572.19 5,960,966.54 611,455.90 70°18'8.384 N 149°5'49.930 W 5,833.90 42.92 340.07 5,281.52 1,476.84 -593.07 5,961,028.64 611,434.10 70°18'8.998 N 149°5'50.539 W 5,924.80 44.75 339.14 5,347.09 1,535.85 -615.02 5,961,087.31 611,411.28 70°18'9.578 N 149°5'51.179 W 6,018.14 44.74 339.32 5,413.38 1,597.28 -638.32 5,961,148.38 611,387.06 70°18'10.182 N 149°5 51.859 W 6,113.75 44.59 338.61 5,481.38 1,660.01 -662.44 5,961,210.74 611,362.01 70°18'10.799 N 149°5'52.562 W 6,211.43 43.26 340.53 5,551.74 1,723.50 -686.11 5,961,273.86 611,337.40 70°18'11.424 N 149°5 53.252 W 6,301.42 42.83 340.36 5,617.50 1,781.38 -706.66 5,961,331.43 611,315.99 70°18'11.993 N 149°5'53.852 W 6,396.93 42.40 339.93 5,687.79 1,842.21 -728.63 5,961,391.91 611,293.12 70°18'12.591 N 149°5'54.492 W 6,492.86 42.01 339.53 5,758.85 1,902.66 -750.95 5,961,452.02 611,269.90 70°18'13.186 N 149°5'55.143 W 6,584.06 41.79 339.29 5,826.73 1,959.68 -772.37 5,961,508.70 611,247.63 70°18'13.746 N 149°5'55.768 W 6,681 64 41.69 341.23 5,899.55 2,020.82 -794.31 5,961,569.50 611,224.79 70°18'14.348 N 149°5'56.408 W 9/26/2010 9:55:38AM Page 6 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report- Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-5 +E/-W Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 6,777.05 42.91 342.19 5,970.12 2,081.78 -814.46 5,961,630.16 611,203.74 70° 18' 14.947 N 149°5'56.996 W 6,871.92 42.40 342.32 6,039.89 2,143.01 -834.05 5,961,691.08 611,183.23 70° 18'15.549 N 149°5'57.567 W 6,967.21 42.42 343.32 6,110.24 2,204.40 -853.03 5,961,752.18 611,163.34 70°18'16.153 N 149°5 58.121 W 7,060.72 43.18 343.47 6,178.85 2,265.29 -871.19 5,961,812.78 611,144.28 70°18'16.752 N 149°5 58.650 W 7,151.02 42.69 342.73 6,244.97 2,324.14 -889.07 5,961,871.36 611,125.53 70°18'17.331 N 149°5'59.172 W 7,248.52 41.68 340.30 6,317.22 2,386.23 -909.81 5,961,933.13 611,103.86 70°18'17.941 N 149°5'59.777 W 7,341.05 41.46 337.55 6,386.45 2,443.51 -931.88 5,961,990.07 611,080.94 70°18'18.505 N 149°6'0.421 W 7,433.33 41.40 336.39 6,455.64 2,499.70 -955.77 5,962,045.89 611,056.22 70°18'19.057 N 149°6'1.118 W 7,528.23 42.02 334.75 6,526.48 2,557.19 -981.88 5,962,102.97 611,029.25 70°18'19.623 N 149°6'1.879 W 7,617.55 43.40 334.66 6,592.11 2,611.96 -1,007.77 5,962,157.35 611,002.56 70°18'20.161 N 149°6'2.635 W 7,711.93 42.96 335.14 6,660.94 2,670.44 -1,035.17 5,962,215.41 610,974.29 70°18'20.736 N 149°6'3.434 W 7,806.42 42.36 332.56 6,730.43 2,727.91 -1,063.37 5,962,272.45 610,945.23 70°18'21.302 N 149°6'4.257 W 7,901.31 41.73 332.92 6,800.90 2,784.40 -1,092.48 5,962,328.50 610,915.29 70°18'21.857 N 149°6'5.106 W 7,994.51 41.29 330.11 6,870.69 2,838.69 -1,121.93 5,962,382.33 610,885.04 70°18'22.391 N 149°6'5.965 W 8,090.44 42.18 328.59 6,942.28 2,893.62 -1,154.49 5,962,436.76 610,851.67 70°18'22.931 N 149°6'6.914 W 8,184.31 41.28 327.99 7,012.33 2,946.77 -1,187.33 5,962,489.42 610,818.04 70°18'23.454 N 149°6'7.872 W 8,280.41 41.03 328.49 7,084.69 3,000.54 -1,220.62 5,962,542.69 610,783.96 70°18'23.983 N 149°6'8.843 W 8,373.55 43.11 327.96 7,153.83 3,053.59 -1,253.48 5,962,595.23 610,750.31 70°18'24.504 N 149°6'9.802 W 8,469.56 42.39 328.22 7,224.33 3,108.91 -1,287.93 5,962,650.03 610,715.04 70°18'25.048 N 149°6'10.807 W 8,563.60 41.60 328.07 7,294.22 3,162.36 -1,321.14 5,962,702.97 610,681.05 70°18'25.574 N 149°6'11.775 W 8,659.84 43.21 328.82 7,365.28 3,217.66 -1,355.09 5,962,757.75 610,646.27 70°18'26.118 N 149°6'12.766 W 8,752.24 43.45 328.82 7,432.49 3,271.91 -1,387.92 5,962,811.50 610,612.64 70°18'26.651 N 149°6'13.724 W 8,849.44 42.92 329.04 7,503.37 3,328.88 -1,422.25 5,962,867.95 610,577.47 70°18'27.211 N 149°6'14.725 W 8,943.48 42.70 329.29 7,572.36 3,383.76 -1,455.01 5,962,922.33 610,543.90 70°18'27.751 N 149°6'15.681 W 9,038.08 42.64 330.85 7,641.91 3,439.32 -1,487.00 5,962,977.40 610,511.09 70°18'28.297 N 149°6'16.614 W 9,131.75 42.71 332.39 7,710.78 3,495.18 -1,517.17 5,963,032.80 610,480.09 70°18'28.847 N 149°6'17.494 W 9,226.16 42.52 334.23 7,780.26 3,552.28 -1,545.88 5,963,089.47 610,450.53 70°18'29.408 N 149°6'18.332 W 9,274.14 42.18 334.47 7,815.72 3,581.42 -1,559.88 5,963,118.39 610,436.11 70°18'29.695 N 149°6'18.740 W 9,320.26 42.19 334.62 7,849.90 3,609.38 -1,573.19 5,963,146.15 610,422.38 70°18'29.970 N 149°6'19.129 W 9,378.39 41.69 334.61 7,893.14 3,644.48 -1,589.84 5,963,180.99 610,405.21 70°18'30.315 N 149°6'19.615 W 9,429.76 41.15 334.26 7,931.66 3,675.14 -1,604.51 5,963,211.43 610,390.09 70°18'30.617 N 149°6'20.043 W 9,474.49 41.06 333.93 7,965.36 3,701.59 -1,617.35 5,963,237.68 610,376.85 70°18'30.877 N 149°6'20.417 W 9,569.52 40.54 333.38 8,037.30 3,757.24 -1,644.91 5,963,292.91 610,348.47 70°18'31.424 N 149°6'21.221 W 9,664.93 39.95 333.08 8,110.13 3,812.27 -1,672.67 5,963,347.51 610,319.89 70°18'31.965 N 149°6'22.031 W 9,759.42 39.87 331.90 8,182.61 3,866.04 -1,700.67 5,963,400.85 610,291.09 70°18'32.494 N 149°6'22.848 W 9,851.84 39.76 330.88 8,253.60 3,917.99 -1,729.01 5,963,452.37 610,261.99 70°18'33.005 N 149°6'23.675 W 9,945.59 39.54 330.85 8,325.78 3,970.24 -1,758.13 5,963,504.18 610,232.09 70°18'33.519 N 149°6'24.525 W 10,042.58 39.03 330.99 8,400.85 4,023.91 -1,787.98 5,963,557.39 610,201.45 70°18'34.046 N 149°6'25.396 W 10,136.01 39.14 331.44 8,473.37 4,075.54 -1,816.34 5,963,608.59 610,172.32 70°18'34.554 N 149°6'26.224 W 10,227.98 38.15 331.29 8,545.20 4,125.95 -1,843.87 5,963,658.58 610,144.05 70°18'35.050 N 149°6'27.027 W 10,324.30 37.66 331.02 8,621.20 4,177.78 -1,872.42 5,963,709.97 610,114.74 70°18'35.559 N 149°6'27.860 W 10,421.51 37.67 332.44 8,698.15 4,230.09 -1,900.55 5,963,761.86 610,085.83 70°18'36.074 N 149°6'28.681 W 10,493.92 39.21 332.56 8,754.87 4,270.02 -1,921.33 5,963,801.47 610,064.45 70°18'36.466 N 149°6'29.287 W 10,591.76 37.59 331.75 8,831.54 4,323.76 -1,949.71 5,963,854.77 610,035.28 70°18'36.995 N 149°6'30.115 W 10,629.11 36.96 331.35 8,861.26 4,343.65 -1,960.49 5,963,874.50 610,024.21 70°18'37.190 N 149°6'30.430 W 10,659.86 37.13 331.14 8,885.81 4,359.89 -1,969.40 5,963,890.60 610,015.06 70°18'37.350 N 149°6'30.690 W 10,695.31 40.30 331.77 8,913.46 4,379.37 -1,979.99 5,963,909.91 610,004.18 70°18'37.542 N 149°6'30.999 W 10,725.17 43.26 331.25 8,935.73 4,396.85 -1,989.48 5,963,927.25 609,994.43 70°18'37.714 N 149°6'31.276 W 10,754.48 46.57 330.98 8,956.48 4,414.97 -1,999.47 5,963,945.22 609,984.17 70°18'37.892 N 149°6'31.568 W 10,787.63 49.51 329.41 8,978.64 4,436.35 -2,011.73 5,963,966.41 609,971.59 70°18'38.102 N 149°6'31.925 W 10,817.30 53.36 329.02 8,997.14 4,456.27 -2,023.60 5,963,986.16 609,959.42 70°18'38.298 N 149°6'32.272 W 10,849.55 55.83 328.23 9,015.82 4,478.71 -2,037.29 5,964,008.39 609,945.41 70°18'38.519 N 149°6'32.671 W 10,878.65 56.45 329.52 9,032.03 4,499.40 -2,049.78 5,964,028.88 609,932.61 70°18'38.722 N 149°6'33.036 W 10,902.77 58.99 328.48 9,044.91 4,516.87 -2,060.29 5,964,046.20 609,921.85 70°18'38.894 N 149°6'33.342 W 10,940.32 65.89 328.13 9,062.28 4,545.18 -2,077.77 5,964,074.24 609,903.95 70°18'39.172 N 149°6'33.852 W 9/26/2010 9:55:38AM Page 7 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (0) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 10,970.56 72.49 328.53 9,073.01 4,569.23 -2,092.60 5,964,098.06 609,888.76 70°18'39.409 N 149°6'34.285 W 11,000.18 78.69 328.14 9,080.38 4,593.63 -2,107.65 5,964,122.23 609,873.35 70°18'39.649 N 149°6'34.724 W 11,032.32 86.54 326.14 9,084.51 4,620.38 -2,124.94 5,964,148.72 609,855.67 70° 18'39.912 N 149°6'35.229 W 11,064.35 91.48 323.22 9,085.06 4,646.50 -2,143.44 5,964,174.56 609,836.77 70°18'40.168 N 149°6'35.769 W 11,095.18 93.89 316.85 9,083.62 4,670.09 -2,163.21 5,964,197.85 609,816.66 70° 18'40.400 N 149°6'36.346 W 11,127.53 94.76 315.37 9,081.18 4,693.34 -2,185.57 5,964,220.76 609,793.95 70°18'40.629 N 149°6'36.998 W 11,159.03 94.20 313.69 9,078.72 4,715.36 -2,207.96 5,964,242.44 609,771.24 70°18'40.846 N 149°6'37.651 W 11,188.53 94.58 311.31 9,076.46 4,735.23 -2,229.64 5,964,261.98 609,749.27 70°18'41.041 N 149°6'38.284 W 11,216.56 94.55 311.08 9,074.23 4,753.63 -2,250.67 5,964,280.07 609,727.97 70°18'41.222 N 149°6'38.897 W 11,257.94 95.53 311.84 9,070.59 4,780.92 -2,281.56 5,964,306.89 609,696.68 70°18'41.490 N 149°6'39.799 W 11,316.97 95.47 311.34 9,064.94 4,819.92 -2,325.51 5,964,345.23 609,652.16 70°18'41.874 N 149°6'41.081 W 11,377.34 94.09 310.98 9,059.90 4,859.52 -2,370.80 5,964,384.14 609,606.29 70° 18'42.263 N 149°6'42.402 W 11,413.61 92.13 310.51 9,057.94 4,883.16 -2,398.24 5,964,407.37 609,578.50 70° 18'42.495 N 149°6'43.203 W 11,445.71 91.64 309.16 9,056.88 4,903.71 -2,422.87 5,964,427.55 609,553.57 70° 18'42.697 N 149°6'43.922 W 11,508.22 92.13 302.85 9,054.82 4,940.41 -2,473.39 5,964,463.50 609,502.51 70° 18'43.058 N 149°6'45.396 W 11,541.65 96.37 299.85 9,052.35 4,957.76 -2,501.85 5,964,480.41 609,473.80 70° 18'43.229 N 149°6'46.226 W 11,573.84 94.98 298.76 9,049.16 4,973.43 -2,529.78 5,964,495.67 609,445.64 70° 18'43.383 N 149°6'47.041 W 11,604.09 95.23 297.20 9,046.47 4,987.57 -2,556.38 5,964,509.40 609,418.83 70° 18'43.522 N 149°6'47.817 W 11,636.45 96.55 295.10 9,043.15 5,001.75 -2,585.28 5,964,523.16 609,389.73 70°18'43.661 N 149°6'48.660 W 11,668.11 96.79 293.52 9,039.47 5,014.70 -2,613.93 5,964,535.67 609,360.89 70°18'43.788 N 149°6'49.496 W 11,698.79 97.03 291.03 9,035.78 5,026.24 -2,642.11 5,964,546.79 609,332.54 70°18'43.902 N 149°6'50.318 W 11,729.11 97.51 289.16 9,031.94 5,036.58 -2,670.36 5,964,556.70 609,304.15 70°18'44.003 N 149°6'51.142 W 11,760.63 96.09 286.50 9,028.21 5,046.16 -2,700.15 5,964,565.84 609,274.22 70°18'44.097 N 149°6'52.011 W 11,788.29 95.22 284.66 9,025.48 5,053.55 -2,726.66 5,964,572.83 609,247.60 70°18'44.170 N 149°6'52.785 W 11,825.26 96.36 284.72 9,021.75 5,062.88 -2,762.24 5,964,581.63 609,211.89 70°18'44.262 N 149°6'53.823 W 11,856.53 96.59 284.31 9,018.23 5,070.66 -2,792.32 5,964,588.96 609,181.70 70°18'44.338 N 149°6'54.700 W 11,881.22 97.38 283.82 9,015.23 5,076.62 -2,816.09 5,964,594.56 609,157.84 70°18'44.397 N 149°6'55.394 W 11,919.14 96.91 284.43 9,010.51 5,085.80 -2,852.58 5,964,603.20 609,121.23 70° 18'44.487 N 149°6'56.458 W 11,949.62 96.34 284.16 9,006.99 5,093.28 -2,881.92 5,964,610.24 609,091.78 70° 18'44.560 N 149°6'57.314 W 11,979.42 96.87 283.21 9,003.57 5,100.28 -2,910.68 5,964,616.81 609,062.92 70° 18'44.629 N 149°6'58.153 W 12,016.78 100.09 280.69 8,998.06 5,107.93 -2,946.82 5,964,623.92 609,026.67 70°18'44.704 N 149°6'59.208 W 12,047.47 100.46 279.35 8,992.58 5,113.19 -2,976.56 5,964,628.73 608,996.86 70°18'44.756 N 149°7'0.075 W 12,078.31 98.86 279.57 8,987.41 5,118.19 -3,006.55 5,964,633.28 608,966.81 70°18'44.805 N 149°7'0.950 W 12,112.49 98.92 279.94 8,982.12 5,123.91 -3,039.83 5,964,638.51 608,933.45 70°18'44.861 N 149°7'1.921 W 12,169.29 95.96 279.12 8,974.77 5,133.23 -3,095.37 5,964,647.00 608,877.78 70°18'44.952 N 149°7'3.541 W 12,206.93 95.59 279.37 8,970.98 5,139.25 -3,132.33 5,964,652.46 608,840.74 70° 18'45.011 N 149°7'4.619 W 12,266.75 96.64 280.86 8,964.61 5,149.69 -3,190.88 5,964,662.03 608,782.04 70° 18'45.114 N 149°7'6.328 W 12,362.55 97.45 282.78 8,952.86 5,169.16 -3,283.94 5,964,680.11 608,688.71 70° 18'45.305 N 149°7'9.042 W 12,396.48 95.70 283.61 8,948.97 5,176.86 -3,316.75 5,964,687.32 608,655.79 70° 18'45.380 N 149°7'10.000 W 12,451.90 95.21 281.83 8,943.71 5,189.00 -3,370.57 5,964,698.66 608,601.80 70° 18'45.500 N 149°7'11.570 W 12,516.00 95.21 281.83 8,937.88 5,202.09 -3,433.04 5,964,710.81 608,539.14 70° 18'45.628 N 149°7'13.392 W 9/26/2010 9:55:38AM Page 8 COMPASS 2003.16 Build 73 • BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B @ 86.87ft(Doyon 14) Site PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +NI-S +E/-W Northing Easting -Shape (0) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 'r W-19BL1 T1 0.00 0.00 9,016.87 4,503.85 -932.10 5,964,050.00 611,050.00 70° 18'38.768 N 149°6'0.435 W -actual wellpath misses target center by 1048.68ft at 10540.76ft MD(8791.36 TVD,4296.04 N,-1934.95 E) -Polygon W-19B Flt 7 0.00 0.00 8,956.87 5,800.65 -3,383.25 5,965,310.00 608,580.00 70° 18'51.515 N 149°7'11.948 W -actual wellpath misses target center by 600.93ft at 12516.00ft MD(8937.88 TVD,5202.09 N,-3433.04 E) -Polygon Point 1 8,956.87 5,800.65 -3,383.25 5,965,310.00 608,580.00 Point 2 8,956.87 5,421.86 -3,468.92 5,964,930.00 608,500.00 W-19B Flt 1 0.00 0.00 8,936.87 5,240.62 -1,041.14 5,964,785.00 610,930.00 70°18'46.014 N 149°6'3.618 W -actual wellpath misses target center by 1254.50ft at 10923.92ft MD(9055.19 TVD,4532.61 N,-2069.98 E) -Polygon Point 1 8,936.87 5,240.62 -1,041.14 5,964,785.00 610,930.00 Point2 8,936.87 4,227.89 -1,206.27 5,963,770.00 610,780.00 Point 3 8,936.87 3,393.20 -1,573.79 5,962,930.00 610,425.00 Point 4 8,936.87 4,227.89 -1,206.27 5,963,770.00 610,780.00 W-19B Fit 5 0.00 0.00 8,966.87 5,885.36 -3,026.92 5,965,400.00 608,935.00 70° 18'52.350 N 149°7'1.553 W -actual wellpath misses target center by 753.22ft at 12234.47ft MD(8968.18 TVD,5143.87 N,-3159.33 E) -Polygon Point 1 8,966.87 5,885.36 -3,026.92 5,965,400.00 608,935.00 Point 2 8,966.87 5,238.28 -3,231.61 5,964,750.00 608,740.00 W-19B Flt 8 0.00 0.00 8,936.87 6,945.23 -4,681.44 5,966,435.00 607,265.00 70° 19'2.765 N 149°7'49.841 W -actual wellpath misses target center by 2144.07ft at 12516.00ft MD(8937.88 TVD,5202.09 N,-3433.04 E) -Polygon Point 1 8,936.87 6,945.23 -4,681.44 5,966,435.00 607,265.00 Point 2 8,936.87 6,231.37 -4,432.04 5,965,725.00 607,525.00 Point 3 8,936.87 5,083.64 -4,934.25 5,964,570.00 607,040.00 Point 4 8,936.87 4,184.85 -5,027.67 5,963,670.00 606,960.00 Point 5 8,936.87 5,083.64 -4,934.25 5,964,570.00 607,040.00 Point 6 8,936.87 6,231.37 -4,432.04 5,965,725.00 607,525.00 W-19B Flt 2 0.00 0.00 8,936.87 5,982.68 -1,840.24 5,965,515.00 610,120.00 70°18'53.311 N 149°6'26.934 W -actual wellpath misses target center by 1225.00ft at 11518.59ft MD(9054.32 TVD,4945.96 N,-2482.14 E) -Polygon Point 1 8,936.87 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point2 8,936.87 4,501.38 -1,772.31 5,964,035.00 610,210.00 Point 3 8,936.87 3,971.24 -1,770.21 5,963,505.00 610,220.00 Point 4 8,936.87 3,539.83 -2,016.69 5,963,070.00 609,980.00 Point5 8,936.87 3,971.24 -1,770.21 5,963,505.00 610,220.00 Point6 8,936.87 4,501.38 -1,772.31 5,964,035.00 610,210.00 W-198 Flt 4 0.00 0.00 8,936.87 5,887.38 -2,491.78 5,965,410.00 609,470.00 70°18'52.371 N 149°6'45.941 W -actual wellpath misses target center by 870.80ft at 11788.29ft MD(9025.48 TVD,5053.55 N,-2726.66 E) -Polygon Point 1 8,936.87 5,887.38 -2,491.78 5,965,410.00 609,470.00 Point 2 8,936.87 5,327.84 -2,530.13 5,964,850.00 609,440.00 Point 3 8,936.87 4,847.41 -2,507.29 5,964,370.00 609,470.00 Point 4 8,936.87 4,154.14 -2,632.65 5,963,675.00 609,355.00 Point 5 8,936.87 3,845.86 -2,752.27 5,963,365.00 609,240.00 Point 6 8,936.87 3,341.84 -2,824.80 5,962,860.00 609,175.00 Point 7 8,936.87 3,845.86 -2,752.27 5,963,365.00 609,240.00 Point 8 8,936.87 4,154.14 -2,632.65 5,963,675.00 609,355.00 Point 9 8,936.87 4,847.41 -2,507.29 5,964,370.00 609,470.00 Point 10 8,936.87 5,327.84 -2,530.13 5,964,850.00 609,440.00 W-19B Flt SV1 0.00 0.00 3,326.87 315.01 -394.45 5,959,870.00 611,650.00 70°17'57.571 N 149°5'44.746 W -actual wellpath misses target center by 322.31ft at 3435.94ft MD(3415.10 TVD,77.81 N,-194.86 E) -Polygon Point 1 3,326.87 315.01 -394.45 5,959,870.00 611,650.00 9/26/2010 9:55:38AM Page 9 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B©86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well W-19 North Reference: True Wellbore: W-19BPB1 Survey Calculation Method: Minimum Curvature Design: W-19BPB1 Database: EDM.16-Anc Prod-WH24P Point 2 3,326.87 110.54 -97.44 5,959,670.00 611,950.00 Point 3 3,326.87 -93.92 199.57 5,959,470.00 612,250.00 W-19B Flt 3 0.00 0.00 8,926.87 5,901.04 -2,401.56 5,965,425.00 609,560.00 70°18'52.506 N 149°6'43.310 W -actual wellpath misses target center by 910.95ft at 11750.27ft MD(9029.35 TVD,5043.16 N,-2690.30 E) -Polygon Point 1 8,926.87 5,901.04 -2,401.56 5,965,425.00 609,560.00 Point 2 8,926.87 5,510.82 -2,392.38 5,965,035.00 609,575.00 Point 3 8,926.87 5,361.05 -2,409.62 5,964,885.00 609,560.00 Point 4 8,926.87 4,760.84 -2,403.56 5,964,285.00 609,575.00 Point 5 8,926.87 4,347.42 -2,514.75 5,963,870.00 609,470.00 Point 6 8,926.87 4,760.84 -2,403.56 5,964,285.00 609,575.00 Point 7 8,926.87 5,361.05 -2,409.62 5,964,885.00 609,560.00 Point 8 8,926.87 5,510.82 -2,392.38 5,965,035.00 609,575.00 W-19BL1 T2 0.00 0.00 8,966.87 4,336.94 -671.54 5,963,887.00 611,313.00 70° 18'37.127 N 149°5 52.834 W -actual wellpath misses target center by 1259.74ft at 10336.06ft MD(8630.51 TVD,4184.07 N,-1875.89 E) -Polygon W-19B Flt 9 0.00 0.00 8,986.87 6,231.37 -4,432.04 5,965,725.00 607,525.00 70°18'55.746 N 149°7'42.552 W -actual wellpath misses target center by 1435.20ft at 12516.00ft MD(8937.88 TVD,5202.09 N,-3433.04 E) -Polygon Point 1 8,986.87 6,231.37 -4,432.04 5,965,725.00 607,525.00 Point 2 8,986.87 5,853.79 -2,922.37 5,965,370.00 609,040.00 Point 3 8,986.87 5,901.04 -2,401.56 5,965,425.00 609,560.00 Point4 8,986.87 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point 5 8,986.87 5,539.29 393.59 5,965,105.00 612,360.00 Point 6 8,986.87 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point 7 8,986.87 5,901.04 -2,401.56 5,965,425.00 609,560.00 Point 8 8,986.87 5,853.79 -2,922.37 5,965,370.00 609,040.00 W-19B Flt 6 0.00 0.00 8,956.87 5,669.02 -3,275.19 5,965,180.00 608,690.00 70°18'50.221 N 149°7'8.794 W -actual wellpath misses target center by 489.57ft at 12451.90ft MD(8943.71 TVD,5189.00 N,-3370.57 E) -Polygon Point 1 8,956.87 5,669.02 -3,275.19 5,965,180.00 608,690.00 Point 2 8,956.87 5,360.07 -3,349.82 5,964,870.00 608,620.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 2,688.37 2,683.17 13 3/8" 13.375 17.500 10,528.87 8,782.06 INTERMEDIATE CASING 1 9.625 12.250 13,716.00 PRODUCTION LINER 1 4.500 6.125 Checked By: Approved By: Date: 9/26/2010 9:55:38AM Page 10 COMPASS 2003.16 Build 73 Data Analyzer Query Results Query Name: LOT/FIT Fixed Field Data by Wellbore Comm.WB Surface Date LOT/FIT MW(ppg) TVD(ft) TMD(ft) BHP(psi) EMW(ppg) Name Press(psi) W-19BPB1 :8/14/2010 FIT 8.70: 8,796.49: 10,528.49 1,150.0' 5,126.2: 11.22 I.W-19BPB1 W-19BPB1 ' W-19BPB1 10/21/2010 14:57 Page 1 of 1 0 V m M flU I O w + o y o x * **2 m m=o S r 6 t - o m 0 m u g F*m 3 3 s m J J O Q N N t1 'O A+O m y. C x N W m0"Z .c," ." 1 ' 00+--w• "u wm , 2, :D+w u04, . m n Ear,* Z vi m m m AaDm DD4 ----r>DD'0u a '^ N A m m N c c_ 7 3-2'-,9, '':A w N J , Ae p n m o n N C Z 0, 0< gC0 0 >�m7. x0 c A0• c0 00 03 0 O- N , LA m 7p L X V O T Of• r M0LT OLS L O 6.00 06006006• 86066620066 Cr N 0 *0000000800 00800 E000 x m O O0N+ N N N W W Z w W O O AN Oj +OA O W r A Of+ y CC w 0 w N Co A N 0 0 O N A Co m A Co Z AAf)O C)m3m33'ir3 33m23333a(X 0 N o 2 i m Mm Mmm.Xim mmmcmmmm MOM D -1-1m3m0303303 330m3333O30 G 3 O 5 O C m C m Z C 0 m Z C i m m m 9 C i mp-i 1 n U n D L O r U L o-A 2 A A O `r m --O O r m ,0 i C n i y � O n,Z 0 0 0 0, 0 C C,n O n ZCC)ZCC)-Z : CCjoZ V OCC)CC)OZA Cm) m C_0 m 0 y 1 y y z 9'-- i Z m 0 1 ti 1 d 9W z 2 I F A g 0 0 0 0 0 0 0 0 0 - 0 3 3m0m0Tm % .OPr 0000m%-1 0 m �\ 1 O.•.�m Mm T T TT .`A top 8 �/ �m9m W-. m^� mmmm {%2`00 �b › , m a E. topo1 311T1,712.244)r• Q .� 0 , 00200 -.".0+00++++0-.0000000 O O QN O 0 t0 0 0 0 0 0 O O 0 . .000 ....-.0.,......0000.0.++++.+ . A (4,1 V to an OImA +a el 4.0“1 OI OO a-• O.Ln O 888000000888;00000000000 nn0)�y�.j�,�,,�� V D qapt 0 V e O I �D� wy1 PPC�OF ' 0 G O m 2047 w N« + ++ +++1 —op--- — 8 m,1ndo c S 1 0 7. mm .1' 42..g.:,7 ' O T DD m M m 2 m n 3 VET, 0O 0 3 3 j , . 0 . o W-19B Liner Run Page 1 of 1 Schwartz, Guy L (DOA) From: Schwartz, Guy L(DOA) Sent: Tuesday, July 06, 2010 4:20 PM To: 'Staudinger, Garret' Subject: RE: W-19B Liner Run (PTD 210-065) Garret, I pulled the well file and reviewed the proposed schematic and completion equipment. I agree that the 7 5/8" casing run is quite short(400') and could be covered with the annular as well as the proposed crossover to drillpipe/safety valve if well control were needed while running in the well. The VBR (3 %"X 6")will also cover the section of 5 1/2"casing (sealbore receptacle) run too. Your proposed BOP setup and safety equipment will be adequate as outlined below. Thanks for bringing this up to my attention. Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) From: Staudinger, Garret [mailto:Garret.Staudinger @bp.com] Sent: Tuesday, July 06, 2010 4:03 PM To: Schwartz, Guy L (DOA) Subject: W-19B Liner Run Guy, As per our conversation earlier, I wanted to clarify our intended liner running operation for the first lateral (W- 19B). This liner will be a tapered liner run consisting of-2900'of 4-1/2", 80'of 5-1/2", and 400'of 7-5/8". This liner will be run on -10,350'of 4"x 5" drill pipe. Regarding the rams in the stack, the current plan is to keep the 3- 1/2"x 6"VBR on top to cover the drillpipe and all of the liner except the 400' of 7-5/8". No 7-5/8" rams will be installed. We will have a crossover from 7-5/8"to DP on the floor with a safety valve installed. Please let me know if this plan is okay with you, and if you have any other questions/comments. <<W-19B BL1 proposed completion.ZIP>> Thanks, Garret Garret Staudinger Operations Drilling Engineer BP Exploration Alaska, Inc. Work: (907) 564-4242 Cell: (907)440-6892 7/6/2010 sunE o [F SEAN PARNELL,GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 Rob Tirpack Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU W-19B BP Exploration (Alaska), Inc. Permit No: 210-065 Surface Location: 696' FNL, 1181' FEL, SEC. 21, T11N, R12E, UM Bottomhole Location: 5270' FSL, 165' FEL, SEC. 17, Ti 1 N, R12E, UM Dear Mr. Tirpack: Enclosed is the approved application for permit to re-drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. f . • ' missioner DATED this 74day of May, 2010. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA RECEiVE D • ALA; DIL AND GAS CONSERVATION COME DN , PE RMIT TO DRILL S 1.2.0)e, 20 AAC 25.005 MAY 1 8 2010 la.Type of work: lb.Proposed Well Class: ®Development Oil ❑Service-Winj ❑Single Zone `" t8$1(N'► ❑ Drill ®Redrill ❑ Stratigraphic Test ❑Development Gas ❑Service-Supply ❑Multiple Zone c'- r�.aas Hydrates ❑ Re-Entry ❑ Exploratory ❑Service-WAG ❑Service-Disp • s L':' ale Gas 2. Operator Name: 5.Bond: ® Blanket ❑Single Well 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU W-19B 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 13640' TVD 9037' Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028263&028262 696'FNL, 1181'FEL, SEC.21,T11N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 727' FSL, 3178'FEL,SEC. 16,T11N, R12E, UM July 1,2010 - Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 5270' FSL, 165'FEL, SEC. 17,T11N, R12E, UM 2560 15,692 • 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 83.4' feet 15.Distance to Nearest Well Open Surface: x- 612049 y-5959561 Zone- ASP4 GL Elevation above MSL: 52.9' feet to Same Pool: 1,125' 16.Deviated Wells: Kickoff Depth: 3100 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 96 degrees Downhole: 3700 Surface: 2830 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling. Length MD ND MD ND (including stage data) 12-1/4" 9-5/8" 40#/47# L-80 "VP/ 10453' Surface Surface 10453' 8763' 2391 cu ft LiteCrete.473 cu ft Class'G' 8-1/2" 7-5/8" 29.7# 13Cr80 STL 320' 10303' 8647' 10623' 8881' (See Below.Combination Liner) 6-1/8" 4-1/2" 12.6# 13Cr80 VamTop, 3017' 10623' 8881' 13640' 9037' 467 cu ft Class'G' 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth ND(ft): Junk(measured): 14500' 9092' None 14406' 9065' Yes, S ee Diagram Casing Length Size Cement Volume MD ND Conductor/Structural 110' 20" 110' 110' Surface 2692' 13-3/8" 3723 cu ft Coldset II 2692' 2687' Intermediate 10463' 9-5/8" 2392 cu ft Class'G' 10463' 8417' Production Liner 627' 7" 174 cu ft Class'G' 10308'- 10935' 8307'-8768' Liner for W-19A 3721' 4-1/2" 528 cu ft Class'G' 10774'- 14495' 8646'-9091' Liner for W-19AL1 984' 3-1/2"x 3-3/16'x 2-7/8" Uncemented Slotted Liner 10978'- 11962' 8800'-8977' Perforation Depth MD(ft): W-19A: 11154'-13980' Perforation Depth ND(ft): W-19A: 8904'-9016' W-19AL1 Slotted Section: 11249'-11930' W-19A Slotted Section: 8906'-8976' 20.Attachments: ❑ Property Plat ❑ BOP Sketch ®Drilling Program ❑Time vs Depth Plot ❑Shallow Hazard Analysis ❑ 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 Garret Staudinger,564-4242 Printed Name b T'rpack Title Engineering Team Leader Prepared By Name/Number Signature 47 Phone 564-4166 Date .5/446 Terrie Hubble,564-4628 Commission Use Only Permit To Drill / API Number: Permit A r v Dat : See cover letter for Number: c�fe>0,l .S 50-029-22006$ -00 (`i(01 l other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: ®' Other: l� 3500 P`" &DP \\ Samples Req'd: ❑ es ErNo Mud Log Req'd: ❑ Yes ErNo '1K 2500 Ps� �h h w� /e-S t LA1''4^J H25 Measures: fYes ❑No Directional Survey Req'd: ta'Sres ❑No , �� / /b ��� APPROVED BY THE COMMISSION Date C ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from the date o al). •' 20 AAC .00 g)) Submit In Duplicate ORIGINAL - Nodig;> Well Name: W-19B, W-19BL1 Drill and Complete Plan Summary Type of Well (service/producer/injector): I Producer Target X Y Township Range Section FSL FEL Surface 612049.07 5959560.93 11N 12E 21 4553 1181 W-19B Tie-In: 611960 5959609 11N 12E 21 4633 1268 W-19B TSAD: 609977 5963954 11N 12E 16 3727 3177 W-19B Bottom Hole 607684 5965463 11N 12E 17 5269 165 Location: W-19BL1PB1 (Pilot 610025 5963870 11N 12E 16 3642 3130 Hole) KOP W-19BL1PB1 (Pilot 611154 5963851 11N 12E 16 3607 2001 Hole) Bottom Hole Location: W-19BL1 KOP (from 611038 5964080 11N 12E 16 3837 2114 BL1PB1): W-19BL1 TSAD 609989 5963954 11N 12E 16 3727 3165 W-19BL1 Bottom 612856 5962994 11N 12E 16 2724 315 Hole Location: API Number: TBD ) Rig: Doyon 14 GL: 54.1' RT: 34.3 RTE: 88.4 Estimated Start Date: July 1, 2010 Operating days to complete: 57.5 Contacts: Operations Drilling Engineer Garret Staudinger (564-4242) Geologist Allison Green (564-4710) PE Carolyn Kirchner (564-4190) Well Design: Ivishak Zone 4 Dual Lateral Producer with cemented multi-lateral junction, 4 1" 12.6# 13Cr monobore completion Directional Plan: Version: W-19B: Sperry Plan 15 W-19BL1 PB1: Sperry Plan 7 W-19BL1: Sperry Plan 14 KOP: 3100' MD, build 3/100 Maximum Hole Angle: 120° (W-19BL1PB1) Nearest well within Pool: W-19B is 1,125'from W-29i, W-19B is 660'from W-19A, W-19BL1 is 640'from W-19A, (horizontal section closest approaches within zone: W-19B is 314'from W-19AL1, W-19BL1 is 381' from W-19A) Distance to Nearest Property Line: 15,692'from closest western PBU Boundary at surface, 18,890' from PBU Boundary at top of pool Surface and Anti-collision: Surface Shut in Wells: • No wells are required for surface shut-in prior to rig moving on well Close Approach Shut-in Wells: • All wells pass Close Approach Anti-Collision Scan • Reference the anti-collision scan for a full list of offset well paths. W-19B/BL1 Permit Application Page 1 Mud Program: 12-1/4" Intermediate Hole M_ ud Properties: Freshwater Mud (LSND) Interval Density(ppg) YP PV API Filtrate MBT pH _ Chlorides 3100—7500 8.8—9.2 18-24 12-18 <6.0 <20 9.0— 10 _ <600 7500—TD (TSGR) 11.0 25-30 16-20 <6.0 <20 9.0— 10 <600 6-1/8" Production Hole Mud Properties: I Freshwater Mud (PowerVis) Interval Density(ppg) YP PV API Filtrate pH MBT B& BL1 Laterals 8.5 24-30 6-8 6—8 9—9.5 <6 Survey and Logging Program: 12-1/4" Intermediate Hole: Surveys will be IIFR corrected real time and multi-station Open hole: _ MWD/GR/Res/PWD Cased Hole: USIT (asset required) 6-1/8" Production Holes: Surveys will be IIFR corrected real time and multi-station Open hole: MWD/GR/Res/PWD Cased Hole: _ SCMT if required Casing/Tubin Program: Hole Size Csg/ Wt/Ft Grade Connection Length Top Btm Tbg O.D. MD/TVD MD/TVD Existing Casing from W-19 17-1/2" I 13-3/8" I 68 I L-80 1 BTC 1 2692 I GL 1 2692'/2689' New Casing for W-19B 12-1/4" 9-5/8" 40 L-80 HYD 563 8500' GL 8500'/7289' 12-1/4" 9-5/8" 40 L-80 BTC 1753' 8500'/7289' 10253'/8612' 12-1/4" 9-5/8" 47 L-80 BTC 200' 10253'/8612' 10453'/8763' 8-1/2"W-19B 7-5/8" 29.7 13CR-80 STL 320' 10303'/8647' 10623'/8881' 6 1/8"W-19B 4 1/2" 12.6 13CR-80 VamTop 3017' 10623'/8881' 13640'/9037' 6 1/8"W-19BL1 4 1/2" 12.6 13CR-80 VamTop 4130' 10540'/8822' 14670'/9053' Tubing 4'h" 12.6 13CR-80 VamTop 10490' GL 10490'/8760' Integrity Testing: Test Point Depth Test Type 13-3/8" Surface Casing 20'—50' in open hole from KOP LOT (>11.8ppg) Test Point Depth Test Type 9-5/8" Intermediate Casing 20'—50'from 9-5/8"shoe FIT (11.0ppg) W-19B/BL1 Permit Application Page 2 • Cement Calculations Casing Size: I 9-5/8"47-lb/ft L-80 BTC X 40-lb/ft L-80 BTC X HYD 563 intermediate casing Basis: Lead: 40% excess over gauge hole to TOC Lead TOC: 4000' (An ES cementer may be run to ensure good cement through Schrader) Tail: 1,000'of open hole with 40% excess, plus 80' shoe track Tail TOC: 1,000' MD above shoe Total Cement Volume: Spacer 50 bbls of Viscosified Spacer weighted to -11.5 ppg (Mud Push) Lead 426 bbls, 2391 cuft, 1013 sks 12.0 lb/gal LiteCRETE cement -2.36 cuft/sk Tail 84 bbls, 473 cuft, 407 sks 15.8 lb/gal Class G +adds- 1.16 cuft/sk Temp BHST -234° F Casing Size: I B Lateral: 4-1/2", 12.6-lb/ft 13Cr VTHC production liner Basis: Tail: Open hole volume+40%excess+ 150' liner lap+200' MD above liner. Tail TOC: TOL Total Cement Volume: Spacer 30 bbls of Viscosified Spacer(Mudpush)Weighted to 12.0 ppg Tail 84 bbls, 467 cuft, 403 sks 15.8 lb/gal Class G +adds- 1.16 cuft/sk Temp BHST - 232° F Casing Size: I BL1 Lateral: 4-1/2", 12.6-lb/ft 13Cr VTHC production liner Basis: Tail: Open hole volume+40%excess+200' MD above hook hanger. Tail TOC: Hook Hanger Total Cement Volume: Spacer 30 bbls of Viscosified Spacer(Mudpush) Weighted to 12.0 ppg Tail 105 bbls, 585 cuft, 505 sks 15.8 lb/gal Class G +adds-1.16 cuft/sk Temp BHST - 232° F W-19B/BL1 Permit Application Page 3 Formation Markers (Based on SOR): Commercial Hydrocarbon Est. Formation Tops Uncertainty Bearing Est. Pore Press. Est. Pore Press. Formation (TVDss) (feet) (Yes/No) (Psi) (ppg EMW) SV5 -1840 +/-25' no 828 8.7 BPRF -1850 +/-25' no 833 8.7 Poss.Free Gas or Gas SV4 -1990 +/-25' Hydrates 896 8.7 Poss. Free Gas or Gas SV3** -2510 +/-25' Hydrates 1130 8.7 Poss. Free Gas or Gas SV2** -2700 +/-25' Hydrates 1215 8.7 Poss.Free Gas or Gas SV1++ -2990 +/-25' Hydrates 1346 8.7 KOP in SV1 -3011 +/-25' Fault#1 -SV1 (possible) -3240 +1-150'M.D. See Fault section for details. UG4 -3340 +/-25' Thin coal Heavy oil from-3375 to-3425' UG4A -3375 +1-25' ss 1503 8.7 UG3 -3710 +1-25' Thin coal 1519 8.7 UG1 -4160 +/-25' No,wet 1670 8.7 Heavy oil from-4460 to-4500 UG_Ma -4460 +/-25' SS 2007 8.7 Heavy oil from-4505 to- UG_Mbl -4500 +/-25' 4540'SS 2025 8.7 Heavy oil from-4550 to-4575 UG_Mb2 -4540 +/-25' SS 2043 8.7 Heavy oil from-4610 to-4615 UG_Mc -4600 +/-25' SS,then wet below. 2070 8.7 Poss.Heavy oil from-4670 SB_Na -4665 +/-25' to-4680 SS 2099 8.7 SB_Nb -4695 +/-25' No,wet 2100 8.7 SB_OA -4820 +/-25' Yes 2100 8.7 SB_OBa -4860 +/-25' Yes 2000 8.0 SB_OBb -4890 +/-25' Yes 2120 8.4 SB_OBc -4930 +/-25' Yes 2075 8.2 SB_OBd -4980 +/-25' Yes 2035 7.9 SB_OBe -5045 +/-25' Yes 2230 8.6 SB_OBf -5085 +/-25' Yes 2270 8.6 OBf-Base -5125 +/-25' No 2290 8.6 CM-2 5410 +/-25' No CM-1 6065 +/-25' No THRZ 6540 +/-25' No TKLB 6745 +/-25' No TKC4 6750 +/-25' No 3400 9.7 TKB_LCU 6750 +/-25' No TMLV 6760 +/-25' No TKNG 7412 +/-25' No W-19B/BL1 Permit Application Page 4 TJG 7432 +/-25' No TJF 7734 +/-25' No TJE 7952 +/-25' No TJD 8175 +/-25' No TJC 8376 +/-25' No TJB 8519 +/-25' No TJA 8586 +/-25' No TSGR 8674 +/-25' Gas 3720 8.2 TSHA 8703 +/-25' No 3700 8.2 TSHB 8759 +/-25' No 3685 8.1 TSHC 8779 +/-25' No TSHD 8800 +/-25' No 3620 7.9 TEIL 8802 +/-25' No 3621 7.9 TSAD 8815 +/-25' Oil 3625 7.9 45N 8847 +/-25' Oil 3636 7.9 45P 8852 +/-25' Oil 3638 7.9 44N 8872 +1-25' Oil 3645 7.9 44P 8877 +/-25' Oil 3647 7.9 43N 8896 +/-25' Swept 3654 7.9 43P 8901 +/-25'. Swept 3655 7.9 42N 8918 +/-25' Swept 3661 7.9 42P 8922 +1-25' Swept 3663 7.9 fault#3 (11300 md) 8940 +/-150'M.D. Swept 3669 7.9 fault#4 (11425 md) 8940 +/-150'M.D. Swept 3669 7.9 44P 8927 +/-25' Swept 3664 7.9 44N 8918 +/-25' Swept 3661 7.9 45P 8896 +/-25' Swept 3654 7.9 45N 8892 +/-25' Swept 3652 7.9 fault#5(possible at 12205 md)) 8891 +/-150'M.D. Oil 3652 7.9 fault#7(possible at 12500 md)) 8860 +/-150'M.D. Oil 3641 7.9 45N 8843 +/-25' Oil 3635 7.9 45P 8851 +/-25' Oil 3638 7.9 44N 8878 +/-25' Oil 3647 7.9 44P 8890 +/-25' Swept 3652 7.9 43N 8919 +/-25' Swept 3662 7.9 43P 8926 +/-25' Swept 3664 7.9 42N 8934 +/-25' Swept 3667 7.9 42P 8938 +/-25' Swept 3668 7.9 TD 8950 +/-25' Swept 3673 7.9 W-19B/BL1 Permit Application Page 5 TD criteria is 100'MD below 8880'sstvd OR the top swept(<8ohmms),whichever is deeper. Ideally we Well TD Criteria will stay in the 46P as long as possible(current plan would allow us to stay in 46P for another 200'MD (ie ??ft TVD, and still able to hit target TD)before diving down to TD. With the proximity to faults and the original ??ft Rathole,etc.) W-26 well,expect that this area near TD could be fairly wet.(i.e.more likely we'll use the 8880'TVD criteria).Note that there are hardlines for the bouding faults beyond the toe of the well that are constraining our TD location. W-19B/BL1 Permit Application Page 6 Well Control: Well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Annular preventer will be tested to 2500 psi. Rams will be tested to 3500 psi. The BOP test frequency during the Decomplete will be on a 7 day period, and 14 days during the D&C operations. Except for significant operational issues that may effect well integrity or pose safety concerns,an extension to the 14 day BOP test period should not be requested. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. Production Interval- • Maximum anticipated BHP: 3700 psi @ 8700' TVD, 8.2 ppg EMW (at TSHA, -10,500' MD) • Maximum surface pressure: 2830 psi @ surface (based on BHP and a full column of gas from TD @ 0.10 psi/ft) • Planned BOP test pressure: • Annular Preventer 250/2500 psi • Rams 250/3500 psi • Planned completion fluid: 8.6 ppg seawater/6.8 ppg diesel Kick Tolerance/Integrity Testing Summary Table Casing and Interval Casing Test Maximum Influx Mud Weight Exp Pore LOT/FIT Pressure Volume (ppg) Press (ppg) 13-3/8" Casing 3500 psi 110.2 BBLS 11.0 9.7 LOT 12-1/4" Intermediate (assuming 11.8 ppg 11.8 Interval EMV FIT) minimum 9-5/8" Casing 3500 psi Infinite (assuming at 8.5 7.9 11.0ppg 6-1/8" Production least 8.8 ppg EMV FIT Interval FIT Other Requests: Given rig floor height limitations, a MASP < 3000 psi, and the fact that the three ram drilling BOP configuration is preferred to a two ram configuration with a spool, BPXA will execute the provisions of 20 AAC 25.285 (f) (1) regarding the initial testing of the BOPE as follows when existing wellhead or testing equipment prevents the testing of the lowest set of pipe rams: That lowest set of rams will be tested at the earliest opportunity during path-forward de-completion work, i.e., after the completion has been pulled from the well. Safety concerns and spacing limitations with the wellhead height and tubing spool preclude us from installing a spacer spool in the three-ram drilling BOP stack. Disposal: • No annular disposal in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: All Class II liquid waste (including drilling muds and/or brines that have been downhole) are to be hauled to GNI and DS-04 for injection. For the disposal of Class I wastes, contact the GPB Environmental Advisors (659-5893) for the appropriate disposal method at Pad 3 or GNI. NOTE: Generally, Class I solids will be directed to the GNI on DS-04 and Class I liquids will be directed to Pad 3. W-19B/BL1 Permit Application Page 7 W-19B/BL1 - Drill and Complete Procedure Summary Current Well Conditions W-19A Shut-in due to high WC Tubing No tubing pressure test since completion. Calipered 5/8/07. 50% penetrations over half of tubing string. Less than 10% body metal loss. Possible buckled tubing 7500'- 10600' MD. Inner Annulus IA pressure test passed at 3000 psi 2/16/03 Outer Annulus OA pressure test failed 2/14/03. LLR 2 bpm at 1200 psi Tubing Hanger Tubing hanger seal condition: 9/20/04 PPPOT-T passed Int casing Hanger Plastic packed with Furmanite. No attempt at testing 12/12/02 Liner Patch Set liner patch from 10926'- 10966'on 9/29/07 Pre-Rig: P&A Existing W-19A&W-19AL1 production intervals: 1 S Drift 4 'h" tubing to top of KB patch at 10926'MD. POOH LD Drift. Pull KB patch with GS spear. 2 E RU E-line. Set cement retainer below W-19AL1 window. Set depth will be -11,075' MD in the middle of a full joint. 3 C RIH and sting into cement retainer. Pump/squeeze 50 bbls 15.8 ppg Class G cement to P&A W-19A. Lay 1 bbls above cement retainer. TOH. Add regular cementing nozzle to coil. TIH to top of the AU window at 10948' MD. Perform injectivity test. Pump 34 bbls of cement (open hole volume+ 4 C 40%excess). Do NOT run aggregate. Objective of the P&A is to seal off of the water communication along the outside of the AL1 liner. Perform hesitation squeezes as necessary. Target TOC at 10,000' MD. 5 F MIT Tubing to 2,000 psi for 30 minutes. 6 S RU Slickline. Drift 4-1/2"tubing and tag TOC. RIH and pull bottom GLM and , leave open for circulating. 7 E RU E-line. PU and run Jet Cutter&CCL to approximately 3000 feet MD. Perform 41/2"tubing cut in middle of a joint @ approximately 3000'MD. MIT T X PC to 2,500psi for 30 minutes. Displace the well to clean seawater by 8 F circulating down the tubing through the open GLM. Continue to circulate until clean seawater returns to surface. Freeze protect to 2,200' MD with diesel. Bleed casing and annulus pressures to zero. PPPOT-T (Positive Pressure Pack Off Test-Tubing) and PPPOT-IC (Positive 9 W Pressure Pack Off Test- Inner Casing). Tubing and 9 5/8" Casing will be pulled.All lock down screws need to be functional. 10 O Set a BPV in the tubing hanger. Secure the well. Remove the well house, level the pad as necessary. Provide total well preparation cost on the handover form. MIT OA with diesel or dead crude to 2000psi, record liquid leak rate (LLR) for 11 0 30 minutes and chart (last test in 2003 MIT OA leaked 2 bpm 1250psi). Leave open to bleeder tank and monitor OA for flow. Ria Operations: 1. MIRU Doyon 14. 2. Pull BPV. Circulate out freeze protection through tubing cut&displace well to seawater. 3. Install TWC and test f/below to 1000psi to confirm barriers. Combination MIT T x IA to 2500psi. 4. Nipple down tree and adaptor. 5. Nipple up and test BOPE to 3,500 psi. 6. Pull TWC. (Blanking plug?) Back out lockdown screws. W-19B/BL1 Permit Application Page 8 7. Pull tubing hanger, and 4-1/2"tubing from the pre-rig cut. 8. PU enough 5"DP and DC's to drill to 9 5/8"casing point (- 10,500'MD) 9. MU 9-5/8"casing scraper assembly. RIH to 2900', irculate wellbore clean with seawater. TOH. 10. RU slickline. Set CIBP in 9 5/8" @ 2850'MD. n "(o5 11. Run a USIT/CCUGR from the CIBP to surfacb'to determine 9-5/8"TOC&collar locations. RD slickltrre. 12. MU a 9-5/8" mechanical casing cutter assembly. RIH on DP and make cut per USIT log results. Primary plan is to make the cut at 2775' to facilitate an exit out the bottom of 13 3/8" shoe. Circulate to confirm cut, and assure the casing is clean by pumping (surfactant wash if needed). 13. Hang off mechanical casing cutter assembly with RTTS. 14. Change out upper rams to 9-5/8" rams. - 15. Attempt to pull 9-5/8" pack-off to ensure that the pack-off can be pulled through the stack (pack-off is plastic packed). Replace 9-5/8" pack-off. Split the stack to clean casing spool of plastic packing if necessary. Test BOPE. 16. POOH and LD assembly. 17. MU a 9-5/8" casing spear assembly and unseat the casing. Circulate the Arctic Pack (to be confirmed) from the OA annulus with warm diesel followed by sea water and detergent sweeps. Pull the 9-5/8" casing from the cut and LD. 18. Change 9-5/8"fixed rams to 3-1/2"x 6"variable rams and test. Install wear bushing. 19. MU a 13-3/8" casing scraper assembly with an RTTS one joint above the scraper. RIH to 13-3/8"shoe, set the RTTS, and pressure test the casing to 3500 psi for 30 min. POOH and LD assembly. 20. MU cement plug assembly with stinger. RIH, circulate above CIBP, and set OH cement plug on top of NI CIBP and 300' up into 13 3/8"shoe. Displace with seawater. TOH. 21. PU 12 1/4" Dir/GR/RES/PWD BHA with PDC bit. RIH to clean out 13-3/8" and displace wellbore to new 1 I SND mud. KO cement plug and drill 20'of new formation. Pull into the shoe and conduct LOT. 22. Continue drilling to +/- 200' and above the HRZ, ensure mud is in condition to 11.0 ppg. During this time hold the pre-reservoir meeting highlighting kick tolerance and detection. �i 23. Directionally drill to 9 5/8" casing point into the Top Sag. This critical casing point will be picked by the operations geologist. 24. Circulate to clean hole. Short trip to the shoe and RBIH to TD. TOH standing back DP and LD BHA. 25. Change to 9-5/8"casing rams and test. 26. RU and run 9 5/8" 40# L-80 BTC x HYD 563 casing to Top Sag. Run an ES Cementer below the UG1 "cretaceous"/Schrader if necessary. RD casing running equipment. 27. RU, PT lines, and pump cement for 9 5/8"casing. Land on mandrel hanger. 28. Change to 3-1/2"x 6"variable rams and test. 29. PU 4" DP for tapered string to TD. 30. Drill the B interval: MU 81/2" Dir/GR/RES/PWD motor BHA and rock bit. TIH. 31. Swap out to 8.5ppg PowerVis mud system. 32. Drill out shoe plus 20' of new formation. Pull up into the shoe and conduct FIT. 33. Drill 8'/2" hole to 250' below the 9 5/8"casing shoe.TOH. LD bit/BHA. 34. MU 6 1/8" Dir/GR/RES/PWD BHA and PDC bit on bent housing motor. W'!°t� 35. Drill to W-19B TD in Ivishak Zone 4. 36. CBU, Short trip, circulate, and condition the hole for running the 4-1/2" production liner. Pull to 9 5/8"shoe, open circ sub, CBU or until hole cleans up, TOH. Rack back drill pipe. 37. Case & Cement the B interval: Run 7-5/8" 29.7# 13CR VAM Top x 4 '/" 12.6# 13CR VAM Top liner with 5 1/2" x 41" seal bore receptacle (SBR) and swell packer on 5" DP and 2-7/8" inner string spaced out to pass the LWP into the 4 1/2" liner. Centralize 41/2" liner per RP. 38. Cement combination liner per plan with LH and LTP. Displace with pert pill and follow with Geovis drilling mud. Circ out excess cement. Contingency LT squeeze if severe losses occur. 39. Clean out B lateral with tapered DP string. 40. Pert W-19B 4 'h" liner: RU SLB and RIH w/-1500'2-1/2" Powerjet Omega guns and e-f ire head(s) set @ 4 SPF. Tag PBTD. Put guns on depth and fire. 41. TOH, verify all shots have fired, LD guns. No CO run required. 42. RU e-line.TIH with retrievable IBP. and set above the 4 1/2" SBR. + .SAN 43. Drill the W-19BL1 lateral: PU the 7-5/8" retrievable whipstock BHA with it spaced out to set down (-22K Ibs) on the 7-5/8" x 4 'h" crossover. Orient the whipstock to generally high side, set whip, shear off, swap to drilling fluid, mill window, TOH, LD BHA. 1A2-141 81-'44. PU 6 1/8" drilling assembly with TCI bit for the build and turn section. TIH & drill curve. Drill pilot hole plugback W-19BL1 PB1. PU hole to KO point for BL1 lateral and trench for open hole sidetrack. L1 45. POOH to change BHA. PU 6 1/8" rotatable drilling assembly with PDC bit to drill to TD. W-19B/BL1 Permit Application Page 9 46. TIH &pull whipstock and anchor. 47. Case & Cement the BL1 interval: With the HR running tool with 2-7/8" inner string, run 4-'/2" 13CR 12.6# . VAM Top solid liner with 13CR bent joint and 13CR B-Hook Hanger with swell packers near the junction to be set in 6.125"drilled hole. Land hook on window. 48. Pump cement. Displace with perf pill volume to fill the liner. Latch up plug and liner wiper dart in the landing collar. 49. Pressure up to release the HR LRT, pick up, and run the spaced-out 2 7/8" inner string into the B lateral to clean out cement below hook hanger and to the top of the retrievable plug 50. TOH & rack back 5"/4" DP and 2 7/8" inner string. 51. RU e-line. Conduct GRJB run, then USIT log from 7 5/8" LT to either surface or TOC, whichever is lower (for offset Kuparik and Schrader Bluff isolation assurance). 52. Perf W-19BL1 4'/2" liner: TIH and set drilling diverter which facilitates re-entry to the BL1 lateral. TOH. 53. RIH to pert -1500' over -2000' distance with 2 1/2" Powerjet Omega guns and single ball-drop fire head set @ 4 SPF. Tag PBTD. Put guns on depth and fire. 54. TOH, verify all shots have fired, LD guns. No CO run required. RD SLB. 55. TIH on DP to pull the drilling diverter. TOH. 56. TIH to pull retrievable plug. 57. TIH to set the LEM (Lateral Entry Module) with estimated 20klbs down force to latch in to collet. TOH Laying Down DP. 58. R/U, M/U -10,400' of 4-1/2" 13CR VAM Top completion tubing with 4'/2"seal stem on bottom, 4'/2 x 9 5/8" production packer, 8 GLM's, and X-nipples. 59. Space the tubing into the top of SBR. Use minimal circ rate to wash SBR. Pick up to allow full circulation. 60. Reverse circulate to seawater with corrosion inhibitor. 61. Land tubing into 4'/2"SBR and hanger. RILDS. 62. Drop ball and rod to seat in RHC in X-nipple below packer, pressure up to initiate set, and continue up to test tubing and annulus separately to 3,500 psi each. Record the test. 63. TOH laying down DP. 64. Install and test TWC. 65. Nipple down BOP. 66. NU tree and adaptor flange,test tree to 5,000 psi. Pull TWC. 67. Reverse in diesel freeze protect to -2,200' U-tube. Install BPV. 68. Secure well. Release rig. Post-Ria Operations: 1 0 Install wellhouse and flowlines. S-riser modifications may be required. 2 S MIRU slick line. Pull the ball and rod. Install gas lift valves. W-19B/BL1 Permit Application Page 10 Drilling Critical Issues POST THIS NOTICE IN THE DOGHOUSE I. Directional Control: Ensure that directional control is maintained and to not fall behind the planned curve. Important to stay on plan in the production section to avoid approaching multiple faults at the edge of the polygon. II. Faults: There are 4 planned fault crossings in the two laterals. Each of the laterals has two planned fault crossings. There is an additional 3 possible fault crossings, one being in the SV1 and the other two being in the B lateral. W-19A had moderate lost returns. W-Pad has several highly conductive faults and losses often occurred at faults; be prepared for loss of returns. III. Kick Tolerance/Integrity Testing: The current 9 5/8"casing most likely will not have cement behind casing at the cut depth (-75' below 13-3/8" shoe). The 9-5/8"casing was cemented with -400 bbls of cement. The 13-3/8"casing will be tested to 3500 psi before drilling out. A LOT to a minimum of 11.8 ppg will be performed after drilling 20-50' of new formation after kicking out below the 13-3/8" casing. The original LOT from the 13-3/8" shoe was 15.0 ppg EMW. The new 9-5/8"casing string will be run to surface. A FIT to 11.0 will be performed after drilling 20-50' of new formation after drilling out 9-5/8"casing shoe Kick Tolerance/Integrity Testing Summary Table Casing and Interval Casing Test Maximum Influx Mud Exp Pore LOT/FIT Pressure Volume Weight Press (ppg) (ppg) 13-3/8" Casing 3500 psi 110.2 BBLS (assuming 11.0 9.7 LOT 12-1/4" Intermediate 11.8 ppg EMV FIT) 11.8 minimum Interval 9-5/8" Casing 3500 psi Infinite (assuming at 8.5 7.9 FIT 6-1/8" Production least 8.8 ppg EMV FIT 11.0ppg Interval IV. Hydrogen Sulfide Standard H2S precautions will be followed at all times. Recent H25 data from the pad is as follows: H2S Summa Table Well Name H S Level • •m Date of Readin• #1 Closest SHL Well H2S Level W-18 56 9/17/2008 #2 Closest SHL Well H2S Level W-20i NA, injector NA #1 Closest BHL Well H2S Level W-29i NA, injector NA #2 Closest BHL Well H2S Level W-26 20 8/1/2008 Max. Recorded H2S on Pad/Facility W-18 56 9/17/2008 V. Lost Circulation: Overall risk of significant lost circulation is considered high for this well due to 4 anticipated and 3 possible fault crossings. Follow the recommended drilling practices, and the lost circulation decision tree. Ensure sufficient LCM material is on location. VI. Anti-Collision Issues All wells have passed the major risk scan. Reference the Anti-collision report in the directional plan for a full list of offset well paths. CONSULT THE W PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION W-19B/BL1 Permit Application Page 11 TREE= 4-1/16"CM//FMC VV-1 9AL1 W BO EI S TILL OPEN. 49'. W-19A WELLHEAD= 13-5/8"FMC ACTUATOR= BAKER KB. ELEV= 80.25' BF.ELEV= 54.15' K J OP= 1510' Max Angle= 96© 11600' Datum MD= 11117' I 2111' H4-1/2"HES X NIP, ID=3.813" I Datum TVD= 8800'SS 3600//'to 13-3/8"CSG,68#,L-80, ID=12.415" H 2692'_J— eAj 4 i'.1- GAS LIFT MANDRELS Minimum ID = 3.80" @ 10767' ST MD -ND DEV TYPE VLV LATCH PORT DATE 4-1/2" MILLED HES XN NIPPLE 6 3071 2975 11 CA-MMG DOME RK 16 09/14/04 5 5398 4798 48 CA-MMG DOME RK 16 09/14/04 4 7154 5998 50 CA-MMG DOME RK 16 09/14/04 3 8489 6898 46 CA-MMG DOME RK 16 09/14/04 2 9586 7690 42 CA-MMG SO RK 24 09/14/04 1 10191 8135 43 CA-MMG DMY RK - 02/16/03 a a TOP OF 7"LNR H 10308' • 1 ►1 TOP OF CEMENT 10468' ,��i 1�(; ∎4 MILLOUT WINDOW(W-19A)10463'- 10513' .!►1*ft .111111111111 9-5/8"CSG,47#,L-80,ID=8.681" H 11560' I • •11111111 •1111111• 11111111 `1�1111111111� 10712' H4-1/2"HES X NIP, ID=3.813" I .411�1, PERFORATION SUMMARY FOR WELLBOREA&L1 4,0 lk 10723' H 7"X 4-1/2"BKR S-3 PKR,ID=3.875" REF LOG: SWS MWD MEM RES ON 11/29/98 ANGLE AT TOP PERF:57 @ 11154' � Note: Refer to Production DB for historical perf data ,, ♦ 10746' H4-1/2"HES X NIP, ID=3.813" SIZE SPF INTERVAL Opn/Sqz DATE SEE PAGE2 lit 10767' I—4-1/2"HES XN NIP FOR PERF (MILLED 02/25/03), ID=3.80" BREAKDOWN 10779' 4-1/2"WLEG, ID=3.958" TOP OF 4-1/2"LNR ( 10774' . • H EI-MD TT LOG NOT AVAILABLE I 10926'-10966'}-4-1/2"BKR PATCH(09/29/07), 4-1/2"TBG, 12.6#, L-80, .0152 bpf, ID=3.958" H 10779' 19= 2''':/ tt 10978' 3-1/2"BRK DEPLOY SLV, ID=3.00"I 7"LNR,26#,L-80, .0383 bpf,ID=6.276" —I 10935' 0 10981' 3-1/2"X 2-7/8"XO, ID=2.441" vit MILLOUT WINDOW(W-19AL1)10948' 10954' �,; Ilk FISH:3-1/2"OD X 2-3/8"ID X 3-7/8"LONG —I ??? PBTD —I 11930' PBTD -I 14406' I— x'244 ■4-1/2"LNR, 12.6#, L-80, .0152 bpf, ID=3.953" H 14495' 2-7/8"LNR(SOLID&PRE-DRILLED), -f 11962' I 6.16#, L-80, .0058 bpf, ID=2.372" TD —I 12701' I DATE REV BY COMMENTS I DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION I 09/29/07 TEL/TLH PATCH SET WELL: W-19AL1 12/25/98 SIDETRACK(W-19A) PERMIT No: 2022350 03/08/03 DACITLH SIDETRACK(W-19AL1) AR No: 50-029-22006-01 03/21/03 AF/KAK ADD TOP OF WINDOW SEC 21,T11N,R12E,695.7'FNL&1181.2'FEL 03/24/03 JM/KAK GLV C/O 05/01/07 KCF/PJC XN NIP MILLED(02/25/03) BP Exploration(Alaska) W-I9ALI ] I 1 CI PERFORATION SUMMARY FOR WELLBOREA REF LOG: SWS MWD MEM RES ON 11/29/98 ANGLE AT TOP PERF:57 @ 11154' Note:Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE III MI 2-7/8" 4 11154-11204 0 11/11/02 , I 2-7/8" 4 11220-11236 0 11/11/02 w 4 2-7/8" 4 11250 11360 0 11/11/02 ♦�'� 4 2-7/8" 4 11419-11500 0 11/11/02 �./....'. 0 2-7/8" 4 11530-11610 0 11/11/02 Oft.. i�.�.�1 . ....1 2-7/8" 4 11665-11750 0 12/24/98 I... 4 •2-7/8" 4 11844-11875 0 04/28/01 \ .�.�.�.�.�. 2-7/8" 4 11929-11960 0 04/28/01 4∎������ .4 2-7/8" 4 12010-12090 0 12/24/98 .4..#. 2-7/8" 4 12100-12200 0 11/11/02 2-7/8" 4 12520-12545 0 04/28/01 ,eAk 2-7/8" 4 12560- 12580 0 04/28/01 ,, ■ 2-7/8" 4 12690- 12800 0 12/24/98 2-7/8" 4 12920-13000 0 12/24/98 2-7/8" 4 13000-13100 0 11/10/02 2-7/8" 4 13330-13380 0 11/10/02 2-7/8" 4 13420-13450 0 11/10/02 2-7/8" 4 13590-13720 0 11/10/02 2-7/8" 4 13780-13900 0 12/24/98 • 2-7/8" 4 13910-13980 0 12/24/98 . 0. PERFORATION SUMMARY FOR WELLBORE L1 CQ REF LOG: SPERRY MWD SGRC ON 03/05/03 ` ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data ;1 SIZE SPF INTERVAL Opn/Sqz DATE * 4 11249-11408 0 03/05/03 * 4 11706-11930 0 03/05/03 *PRE-DRILLED PIPE Vpitj. DATE REV BY COMMENTS 1 DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION '1 09/29/07 TEUTLH PATCH SET WELL: W-19AL1 12/25/98 SIDETRACK(W-19A) i PERMIT No: 2022350 03/08/03 DAC/TLH SIDETRACK(W-19AL1) API No: 50-029-22006-01 03/21/03 AF/KAK ADD TOP OF WINDOW 1 SEC 21,T11N,R12E,695.7'FNL&1181.2'FEL 03/24/03 JM/KAK GLV C/O 05/01/07 KCF/PJC XN NIP MILLED(02/25/03) BP Exploration (Alaska) TREE W-19 B SAL Y NOTES: ALL CHROME LINER's, WELLHEAD= ACTUATOR= JL ON,&COMPLETION KB.ELEEV- _,.. 80.25' W-19 B L 1 BF. ELEV_= 54.15' KOP= 2800' Max Angle= 101 deg Datum MD= Datum TVD= 8800'SS . 2200' —14-1/2"HESX NIP, ID=3.813" 13-3/8" CSG,72#, L-80, ID=12.415" H 2692' —4 GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 8 9-5/8" CSG, 40#, L-80, HY D 563, ID=8.835" H 8500' 7 6 5 4 1/2"x 9-5/8" BKR PREMIER PKR — 10,317' 0 4 3 4-1/2"HES X NIP, ID=3.813" H 10500' " " 2 9-5/8"CSG,40#, L-80, BTC, ID=8.835" H 10253' 10 1 ��� ►� 9-5/8"X 7-5/8"Baker ZXP Liner Top Packer — 10,303' ■ 2 J 10,510' —17 5/8"X 5-1/2"BKR ZXP LW, ID=3.875" I 9-5/8"x7-5/8"FLEXLOCK LH H 10303' 10,510' --1 Baker Lateral Entry Module l 9-5/8" CSG,47#, L-80, BTC-M,ID=8.681" H 10453' MILLOUT WINDOW 10540-10553' I ', — �� �j/� 14670' 4-112"LNR, 12.6#, 13CR,VT, ID=3.958" 7-5/8" LNR,29.7#,L-80,STL, ID=6.875" J 10623' �► ..,�i vA. 5-1/2" 13CR 17ppf,VT,ID=4.767" Drif— 10,659' " L L 5-1/2"X 4-V2"SBR, ID=4.767"Drif— 10679' Nip ♦ .\�'�� i i . 3 v ca, 5-12"X 4-1/2"XO, ID= 3.958'—I 10,685' rt /f'"' C"10..4j ao t)' ►0 0 xxxx 1_15.85"Sw ell Pkr 13CR VT,ID=3.958" ,5-?-1a Minimum ID = "@" BKR Hook Hanger w/ non-sealing LEM xxxx' _15.85"Sw ell Pkr 13CR VT,ID=3.958" PERFORATION SUMMARY ►,/ 0 REF LOG: TCP PERF ANGLE AT TOP PERF: @ Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-1/2" 4 0 2-1/2" 4 0 2-1/2" 4 O 2-1/2" 4 O ` 2-1/2" 4 O ` 2-1/2" 4 O 2-1/2" 4 0 ==�� 2-1/2" 4 0 AMY :'`I ■• 4-1/2" LNR, 12.6#, 13CR,VAM TOP, .0152 bpf, ID=3.958" H 13640' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 03108110 GJS Proposed Completion WELL: W-19B/BL1 PERMT No: API No: BP Exploration (Alaska) BP - Alaska Prudhoe Bay PB W Pad W-19 Plan W-19B Plan: W-19B Wp 15 Standard Proposal Report 20 April, 2010 HALLIBURTON Sperry Drilling Services . m .0 0) 7 0 p Z c 0 0 0 0 0 5 0 0 0 0 )q Z V m N o 0 000000000 'D ' v '33 t0 ma g•'.5 C C>0.0 0 0 0 0 0 0 0 o T 0__ a U U z R t00000000000000000o < EQa-O0 ' cnaaaaaaaa.aao_a.aaaaaa m U EmO8y II ma 'a RI_ '; '0) 0000000000000000000 w� "c0 Oa =� U)000000000000000000 uj g 20Fwcc L o eaoo(000c000aorc.oaa Q� L� W 3�,a .3 6000tOCD2Nn000CD2NCnCnOCO I- N 000000N-000N-000N.000)CO a 3 0,o0000oo0000000070 0 F _ °o E°o c°;� M 0 0 0 0 CO CO 0 0 0 0 0 0 0 0 o 0p W c Q t L SO ru L . in cOC OCOCOCO COCOCOCDCOCDCDCOCOCOCOCOCO Q y g,ry>C�d a �S ��. W >- o Vl�y� i Z000000000000000000 Q a° 0 C C U w Q7.OQ 3� 0000000000000000000 a OWmwE N O c o N CO o U) vi U)0 ui 00 o a n n 02 2 0 N - 3' w CO cc L n�00N<O v-C')CO 0NNNU CO 0 0 3 O t co Co OO<NNU<<)-o<NNNCn< U W i 3O) p0 02«Cn CO<CD CO CO LOU).N«<Y) ' a Z in co CO CO CO O CO CO CO CO CO CO CO CO CO CO.fp CD 0 L U V)Inn COO N N CO O 0 N co O N O N O N co U Q a J 2 102,2 CO CD«00+1 0)LC)N<CNOU) \ C 000+1 C)CC?N 7 Nn'1". N 0000 CO0 /c co Lc, L-C7 L-0.- Cn MCON c000 CO 0. - +N 000)00N 0 C<COON 01 C) COON L 1- 722 c? 77 Ch C) N W 41 0 ° M o W 9 0 m�CnO(n0n 00n 00 N0ON NN1.9 nnN 2+1g O M Z - Cn 0 0 0 17 a 0 N N a 0 0 U),GOO N F +-CO CO 01 0<+1 CO CO<CO 0 CO 2 0 0 N co C'rC O N N N N On NO1000ACOCOCO N n n 00 S - O W <u)N N Li)l01D U)CO IO N N O<+1 0N ,6 O L4 —0 o G F Go F O _ m Q000000000000000000 f"\ en ^ w F cO co N M co cG Cn 000 co cD 0 co cD co 00 co cO O co O n ,Q CC - NN.00N22222CC00)00000 0 2 n 000A 02 2 co 2 co 00)Of 0000 b \ —0 0060 t0 O 00 a0 O c0 O c0 co co co 0)0)W W Cn \ /WI _ no -<N-.-N<0CDnlno)TNNCO (T .4 W \A \\ - E >H>t-..> oFFF M . A \ - . Z Nm E,m IL d LL IL LL IL LL LL LL LL 0-m mm A O .C) A \ _ O+1Oo ooOmmmmm b0 0 0 Q N: V]\ \ —oo n LL�F D)F W OOAmt A OfO�� en 7 \ \ 0 °m3rn33rn33333333�333 ,N) / 3 3 3 In _ o °o a - .a 0 s / \\ A o ,/ - o _ 00 J —$ j k. 0 s i Ca 1 l —g 5 0 o / -Lam_ 00 - o o �_ N 01 F d _ P7 00 `3� �\ 1 r r r r p \ CO CO CO CO m in co 0 co en an • - - ._ I- 3 3 3 3 3 _1L - -,-_1-- CO - -4j /1.01 �00 •=\ .2<33cocon.-UUnronch\nm0oA a, / \ .�+C O NN+1<+1 LO O O N Cn CO CO CO CO nn •1�� CL % /••u'\\ N ` ^r 0 O��'�.,,� u 00000030N0)-000N-01,000N- 1 000 0 0 0 0 0 00 31,,, 0q a. 1, // \ 0 ^ g O o LLon0000Novicooiooccoroo� C ' I- c7 W 7 N D) 0)9 0 O is- / W O 11 �1 \ CC 0 O O d m m —��3 11 11 \ `^ O V) a) .�-1 m m 0)0000000000000000000 a' I 3 1 fl \\ \� LUO. 0 `" A 0 o O ON 0 o 000000000000000 La ^F`L 111 \ •A A A �0, yn a - / 7' 1 ' 11 \ \\ b Q �� mN m // \ C V] W (70 00 9 32.-N+1+1N,-22-00<N\n-NOUN C W tn` J2 <Nn0 d,CO CO 0I+1N CO CO20U+10000 I / \ \ °• i0 F W r GaN<0 ao Cff cc;xi of O2n N.ON7CO / //\/ \ \ « o w +000)0 CONN<NN00 CO n' 210c0NN / , //'\ \ \ C+1+ o a .-co co.OONN CO CO COCOOO,-.-N 7 7NN NNNMC!)2v Y V W / ''/ \` \\ \\ OO co N O •O 03 CD 1,.. CO C(N.-0) / '' \ \ \ \ C7M 3 a.2+1 !- ZC0C.:V 0)00,O 6601 CCf ana,Gr / '/ \\\\\ \\ \\ \ /.. 1 ..N +NN ONN+1+1««00 NN N00N CO/ CO�v J W N<CNN 22000)O O N 22 U)n0 3 / +1< Q > >00cONn80Nn000ONC00OCn COO 1 c \ C C ` l� \\ 0 �„� , O N2.0`ON OO W J o >OOnrnNg2N0000d N. oco+1W�+1 \ \ N S N c,!,Cn O.- .0(oO O 'O CO! F 0 N n CO W 200 N O N m O N N N<Nn /') N\ C \ \'--' 00 C f Cn 00 N C/),Cnr< 1 C y O2nnOI t000NN NNN2 N 22 _ O \ O @)@) J 0j 0 N n 2<n 0000000000 W 0)W 00 .-. E \ , N t` Z 222C0000000COD10101CD000COCDCOCO W ¢" � mss .`\ III )i O Cl.` Ow \O F-I E6v66.ivOsi O 23- >W c9 WCCN �D<��ooN.N.00 D0000O+1<o r�c., N 0) ;y ,sr el N f UD �Nnnnoonn ONNOCO0000+1 p _ F C C p F 8 Z^CnN0 < FCC m u)OV°+1°<1�1�NNn�oornmmOOU)It)°+1 en 1 CA E.?, 0 I 01 G O O - Q 2 �mmm co 0 0 N 220000)O 00000000000 .M-1 C o C V] •N .�-� W Z d�)�j o c N N CO CD 00 CO CD 000000 O01n COO F v to .v 0 w 33>iU 2 0.-oo,.-roro o o o o O 2 N ri acot Y [] = .a U' 3 'a e A A A U N «««0rn000000mmUn A A A ~ z Z 0 �0 F A •ci 08288 W E 0 re +' C < mOCV ON. W O' W O CO 0112,MNN<0 CO C O CO CO CO CO CCO)0 G V) W 0 CO<o2 N'Ili c OO p<v o <D4,�onNo O N,o eij W W NOOCOO R' w y 0) co 0.2-00ON0OCOO)O.-<CON.C00 COCONCN')CD N 2 CO CO n n 0 0 0 N N N 2 2 2 I ) l I 1 I I I I I I I I I I 1 1 1 1 1 1 1 1 OOCOn. �wW0 ?O_ N OL-N0+1Un COn000 p p n<,n.- W Q'«N O C/),N2<Un CON.0001 O O O O O aO O O ❑ o coo va Z❑N '0 h 0) < < M FN 000 CO O CO 2 U O•(u?B( c 410 59 O C N I N U>fV I 2 • o ,n r 2 co O o f t p C_ m m m Z Z i r e- ' 43813 co 3 N �� • �O ° § a 0 ue;u O ° 6. ° . ;m t6e)ry mmm a . .. ; p�� n f7 0' , O m W m + H co O -u cn p / �0>ad W LLdR > N " O 2 J F , N '� §N owN mQLLLLLL p , p !J p ' � Q H W miD CD E1_+ + + I- N m a m = v tF+000 o H F r - z0 N.a q m O c m ) O d m' 6 r co � \ S a° ?��� E' m co co co CD III c = w> 3 3 ° 0Z \N \ O egc o y O U) o b U . O ' � O m W m W E Z a gN r v L' m m m m H rnrnmrn 9 NNoOmm O.-mmamws-01■0031.-W mU)m Nt`oommer .rmo.111 W mame >rnO o m I oa aoM m M o m mOmmv O) N C J W p O m p a...\ `>\ 0() U mm Q O tV O� coeom::m E o auom UU)Ur) )Umrnom c U wawa:, CC D F-) C a N N a'a a UUh Um Um m m r h 0 t U CO a‘ N O O m ��� U C J m 00a 00)0 NO m 000.-0.-0.-Om CM 0 F d O co Q0000m0N0s-000n01-000r- LO 40 N O NO' 0000 O N i � nr >- maaaa tn 9 ''9 0001". O o O a - c I U UUW 0 c Uco v o0D F)m E—' HN�WO co 8 a aaaa co 1- i� rn to 2 M0000000000000000000 0040400000000000000 N W\ ao r om m p O �p g =N mTTmO ag a m.-Na O m.-CO m+-CO O CVO) 2 F S • , i_ II.-�s-� � Q a NIA mm0)g W W V O N a 0LO• O / .. m 33.1 �0 NamOOmo O)am1�NaNam O •m +-> mW - N��N U) • a Q N ,- 0 + i .m00mmol Nomm II Q d NtO O N"))+ �yv/ a r. p _•I —0U000m~WOm00 0 Z W -10,,T 0 CL)m 0 U)m m r U)NN Ue.1a ADO),-m- i0 -0 � 1 - O N $0CNGG 0 0 CO O m1�Nr07 NN W U) tD U)a N NmO _I C ! - amOaOe C 0i 0 zdoi1∎V0iom Cocomoarsas-Cl� :O J W. 6 Omamm J Ny +r01010(0Nm-1,O10U)Nr,Qt')W mNm _ p m amm00� J O mg W m u)Nmmr�f�0)00N mcp ls0) H - W W N m NNaa<I'.4.a s co o coca co 0 Lc)U) N c0 -C r� LLU)10000 �j 00)0)UNr-0 W x_0000-.-0)OUm0 N 0 +s - O I�coo cO 0 >Of o r CO N a,CO 0 O.a,a a maDa Of 7a N- 0) m/ —O =000o/0 H.-r-I�a00)m1:t7mmODmO NUiNemr- 0 3 d ml�f�0)m Om NNNNN m��Nmm d - . °)Moo mm g rmal�mm000000lrnarnrno O . p .ca! mcommmwwwommmo)mmmmmrn �p . to 04w.-00NNN0m00UU00a -0 - t ‹Nt-r-n001.-n ONNOm1000,. 0 O C 010 Ui000�-�N N Ui 1-.1-10,,-to Ui U U 0 ow Q O ZS a aammmms-oomm moomma 0 co —O mmmmmmmmmmmNNNmmmmm F O) LLLL U0)NFC000)0)0000mm00000 co - CNocowo00)m00000)0)o0U)U)O -J r _ av O 0,-00.-s-000000NUicVNLh)N p _ 60 6 _ a a a a a a 0)0)0)m 0)0)0)0)m m 10 _ _ \, - t - m JJ + 0ln00,00-0U)UFU)NCU)U)NU)0 c0 -co m0)I)'NNaommrsNNmm ON_O �)�•� _$ N. 0 mc'coa c)oi,-0)U).-IDOU N F)Oi U)U)0 CO ,c N. o mmmmlo lo�wlnmm�lnommv.o �.co. C Q V NO o.-mNaaU)No,-amPmm W Nmt0 1 \ (� - 101100 mmmf,r-000 NNNmmm p _ mm Z y O.N m'U)m 1.m 0) 2 ' H Q + m.-Nm a U)m r m0) 'U \ O cl F CI N AA C') \ - o W p a N-- co mm 0 m H H N Lmm O) c Z ' O m F 0 (6 a)°.a-m H c� C OZ 0O �' '0 O O of m -E 0 C 1 Z ' �) as E • W 1 Z F 0 m 5CUE CD - 1°n U. W J 88s8.8 m � -___ m Z 555f, ` m > cLO LL R'0'40'g ti \ ` Y - N S K Wp a°_m � ~ - 81 F m To-0 o , - O E 2 O \— N oe I 01 N OA 1 M M 0 U U m w a mm d = ° c0i m I U O m m l p v $ _ O m ° co - p m m m - n m O °° O LL O N N I H - Q m _ O) a f- O ' N N - o F LL Jp N \ cn --m M N - m 1.0 V - 4 m r - -- D g 0 r) m w a C� 3 - d p / (9 N 0) m Y ■ C7 D co `' `� D Q) - \� \ '\ 0 3 C O co n ca CO — ma off _ �'--g 03 03 T. =a 3� J 0 °� J a` a3a3 L - Q L m OS r';'; 1S .i. N _ co IX 3m 0 1 1 1 !Q�? 1 1 ! 0 1 1 1 I o 0 0 1 1 1 I I 1�1 , 1fpI1 1 1 1 1 I o C Or) !`I N co O r O N Ip 1� p N co o 10 R N N m U7 U) A O ` N a (UI/u oo )43daa leal1Jan anal Sperry Drilling . HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 Project Prudhoe Bay,North Slope,UNITED STATES Map System: US State Plane 1927(Exact solution) System Datum: Mean Sea Level Geo Datum: NAD 1927(NADCON CONUS) Using Well Reference Point Map Zone: Alaska Zone 04 Using geodetic scale factor Site ,PB W Pad,TR-11-12 Site Position: Northing: 5,957,194.18 ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18ft Longitude: 149°6'36.343 W !Position Uncertainty: 0.00 ft Slot Radius: 0" Grid Convergence: 0.84° Well W-19,W-19 Well Position +NI-S 0.00 ft Northing: 5,959,560.93 ft Latitude: 70°17'54.473 N +E/-W 0.00 ft Easting: 612,049.07 ft Longitude: 149°5'33.247 W Position Uncertainty 0.00 ft Wellhead Elevation: ft Ground Level: 47.83 ft Wellbore Plan W-19B Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) BGGM2009 4/1/2010 22.06 80.89 57,673 Design W-19B Wp 15 Audit Notes: Version: 1 Phase: PLAN Tie On Depth: 3,088.95 Vertical Section: Depth From(TVD) +N/-S +E/-W Direction (ft) (ft) (ft) (°) 35.50 0.00 0.00 324.37 4/20/2010 3:40:37PM Page 2 COMPASS 2003.16 Build 71 . HALLIBURTOn Sperry Drilling Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wel!bore: Plan W-19B Design: W-19B Wp 15 Plan Sections Measured Vertical TVD Dogleg Build Turn Depth Inclination Azimuth Depth System +NI-S +E/-W Rate Rate Rate Tool Face (ft) (°) (°) (ft) ft (ft) (ft) (1100ft) (l100ft) (1100 t) (°) 3,088.95 10.29 345.26 3,081.99 2,993.59 50.06 -87.43 0.00 0.00 0.00 0.00 3,138.95 11.52 340.74 3,131.09 3,042.69 59.10 -90.21 3.00 2.47 -9.05 -37.00 3,866.73 40.63 340.71 3,777.76 3,689.36 357.85 -194.72 4.00 4.00 0.00 -0.04 7,294.37 40.63 340.71 6,378.92 6,290.52 2,464.76 -932.04 0.00 0.00 0.00 0.00 7,453.23 41.00 331.00 6,499.27 6,410.87 2,559.26 -974.44 4.00 0.23 -6.11 -90.39 10,453.23 41.00 331.00 8,763.40 8,675.00 4,280.67 -1,928.63 0.00 0.00 0.00 0.00 10,514.41 46.99 332.77 8,807.39 8,718.99 4,318.15 -1,948.61 10.00 9.80 2.89 12.22 10,596.05 46.99 332.77 8,863.07 8,774.67 4,371.22 -1,975.93 0.00 0.00 0.00 0.00 11,054.65 90.00 315.00 9,028.40 8,940.00 4,700.22 -2,228.43 10.00 9.38 -3.87 -25.16 11,131.83 90.00 307.28 9,028.40 8,940.00 4,750.96 -2,286.51 10.00 0.00 -10.00 -90.00 11,487.73 90.00 307.28 9,028.40 8,940.00 4,966.54 -2,569.68 0.00 0.00 0.00 0.00 11,610.55 90.00 295.00 9,028.40 8,940.00 5,029.94 -2,674.60 10.00 0.00 -10.00 -90.00 11,757.28 95.98 281.58 9,020.71 8,932.31 5,075.84 -2,813.34 10.00 4.08 -9.15 -65.71 12,602.68 95.98 281.58 8,932.61 8,844.21 5,244.57 -3,637.02 0.00 0.00 0.00 0.00 12,839.65 92.00 305.00 8,915.89 8,827.49 5,337.47 -3,852.55 10.00 -1.68 9.88 98.71 12,939.65 92.00 305.00 8,912.40 8,824.00 5,394.79 -3,934.41 0.00 0.00 0.00 0.00 13,252.28 83.50 335.14 8,924.95 8,836.55 5,631.21 -4,132.62 10.00 -2.72 9.64 106.01 13,351.55 83.50 335.14 8,936.18 8,847.78 5,720.69 -4,174.09 0.00 0.00 0.00 0.00 13,640.06 55.00 340.00 9,037.40 8,949.00 5,967.01 -4,276.95 10.00 -9.88 1.69 171.73 4/20/2010 3:40:37PM Page 3 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTOA Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 Planned Survey I Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E1-W Northing Easting DLS Vert Section O (°) (°) (ft) ft (ft) (ft) (ft) (ft) 2,993.59 3,088.95 10.29 345.26 3,081.99 2,993.59 50.06 -87.43 5,959,609.68 611,960.91 2.40 91.62 3,100.00 10.56 344.17 3,092.86 3,004.46 51.99 -87.95 5,959,611.60 611,960.36 3.00 93.50 3,138.95 11.52 340.74 3,131.09 3,042.69 59.10 -90.21 5,959,618.67 611,958.00 3.00 100.59 3,200.00 13.97 340.73 3,190.63 3,102.23 71.81 -94.65 5,959,631.32 611,953.37 4.00 113.51 I 3,300.00 17.97 340.73 3,286.75 3,198.35 97.77 -103.73 5,959,657.13 611,943.90 4.00 139.90 3,400.00 21.97 340.72 3,380.72 3,292.32 129.99 -115.00 5,959,689.18 611,932.16 4.00 172.65 3,444.14 23.73 340.72 3,421.40 3,333.00 146.17 -120.66 5,959,705.28 611,926.26 4.00 189.10 UG4 3,482.61 25.27 340.72 3,456.40 3,368.00 161.23 -125.92 5,959,720.25 611,920.77 4.00 204.40 UG4A 3,500.00 25.97 340.72 3,472.08 3,383.68 168.33 -128.41 5,959,727.31 611,918.18 4.00 211.62 3,600.00 29.97 340.72 3,560.39 3,471.99 212.58 -143.89 5,959,771.32 611,902.04 4.00 256.61 3,700.00 33.97 340.71 3,645.21 3,556.81 262.54 -161.37 5,959,821.01 611,883.82 4.00 307.40 3,800.00 37.97 340.71 3,726.13 3,637.73 317.96 -180.76 5,959,876.14 611,863.60 4.00 363.74 3,866.73 40.63 340.71 3,777.76 3,689.36 357.85 -194.72 5,959,915.81 611,849.05 4.00 404.30 3,884.70 40.63 340.71 3,791.40 3,703.00 368.90 -198.59 5,959,926.80 611,845.02 0.00 415.53 UG3 3,900.00 40.63 340.71 3,803.01 3,714.61 378.30 -201.88 5,959,936.15 611,841.59 0.00 425.09 4,000.00 40.63 340.71 3,878.90 3,790.50 439.77 -223.39 5,959,997.29 611,819.17 0.00 487.58 4,100.00 40.63 340.71 3,954.78 3,866.38 501.24 -244.90 5,960,058.42 611,796.74 0.00 550.07 4,200.00 40.63 340.71 4,030.67 3,942.27 562.71 -266.41 5,960,119.56 611,774.32 0.00 612.56 4,300.00 40.63 340.71 4,106.56 4,018.16 624.18 -287.92 5,960,180.69 611,751.90 0.00 675.05 4,400.00 40.63 340.71 4,182.45 4,094.05 685.65 -309.43 5,960,241.83 611,729.47 0.00 737.55 4,477.68 40.63 340.71 4,241.40 4,153.00 733.40 -326.15 5,960,289.32 611,712.05 0.00 786.09 UG1 4,500.00 40.63 340.71 4,258.34 4,169.94 747.11 -330.95 5,960,302.96 611,707.05 0.00 800.04 4,600.00 40.63 340.71 4,334.22 4,245.82 808.58 -352.46 5,960,364.10 611,684.63 0.00 862.53 4,700.00 40.63 340.71 4,410.11 4,321.71 870.05 -373.97 5,960,425.23 611,662.20 0.00 925.02 4,800.00 40.63 340.71 4,486.00 4,397.60 931.52 -395.48 5,960,486.37 611,639.78 0.00 987.51 4,873.00 40.63 340.71 4,541.40 4,453.00 976.39 -411.18 5,960,531.00 611,623.41 0.00 1,033.13 UG_Ma 4,900.00 40.63 340.71 4,561.89 4,473.49 992.99 -416.99 5,960,547.50 611,617.36 0.00 1,050.00 4,925.71 40.63 340.71 4,581.40 4,493.00 1,008.79 -422.52 5,960,563.22 611,611.59 0.00 1,066.07 UG_Mb1 4,978.42 40.63 340.71 4,621.40 4,533.00 1,041.19 -433.86 5,960,595.45 611,599.77 0.00 1,099.01 UG_Mb2 5,000.00 40.63 340.71 4,637.77 4,549.37 1,054.45 -438.50 5,960,608.64 611,594.93 0.00 1,112.50 5,057.49 40.63 340.71 4,681.40 4,593.00 1,089.79 -450.87 5,960,643.78 611,582.04 0.00 1,148.42 UG_Mc 5,100.00 40.63 340.71 4,713.66 4,625.26 1,115.92 -460.01 5,960,669.77 611,572.51 0.00 1,174.99 5,143.14 40.63 340.71 4,746.40 4,658.00 1,142.44 -469.29 5,960,696.15 611,562.84 0.00 1,201.95 SB_Na 5,182.67 40.63 340.71 4,776.40 4,688.00 1,166.74 -477.80 5,960,720.32 611,553.97 0.00 1,226.65 SB_Nb 5,200.00 40.63 340.71 4,789.55 4,701.15 1,177.39 -481.52 5,960,730.91 611,550.09 0.00 1,237.48 4/20/2010 3:40:37PM Page 4 COMPASS 2003.16 Build 71 Sperry Drilling . H A LL I B U R TO R Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +WtiS +E/-W Northing Easting DLS Vert Section (ft) (1 (°) (ft) ft (ft) (ft) (ft) (ft) 4,777.04 5,300.00 40.63 340.71 4,865.44 4,777.04 1,238.86 -503.03 5,960,792.04 611,527.66 0.00 1,299.97 5,347.39 40.63 340.71 4,901.40 4,813.00 1,267.99 -513.23 5,960,821.02 611,517.04 0.00 1,329.59 SB_OA 5,400.00 40.63 340.71 4,941.33 4,852.93 1,300.33 -524.54 5,960,853.18 611,505.24 0.00 1,362.46 5,400.10 40.63 340.71 4,941.40 4,853.00 1,300.39 -524.57 5,960,853.24 611,505.22 0.00 1,362.52 SB_OBa 5,439.63 40.63 340.71 4,971.40 4,883.00 1,324.69 -533.07 5,960,877.41 611,496.36 0.00 1,387.23 SB_OBb 5,492.34 40.63 340.71 5,011.40 4,923.00 1,357.09 -544.41 5,960,909.63 611,484.54 0.00 1,420.17 SB_OBc 5,500.00 40.63 340.71 5,017.21 4,928.81 1,361.79 -546.06 5,960,914.32 611,482.82 0.00 1,424.96 5,558.23 40.63 340.71 5,061.40 4,973.00 1,397.59 -558.58 5,960,949.91 611,469.76 0.00 1,461.34 SB_OBd 5,600.00 40.63 340.71 5,093.10 5,004.70 1,423.26 -567.57 5,960,975.45 611,460.40 0.00 1,487.45 5,643.88 40.63 340.71 5,126.40 5,038.00 1,450.23 -577.01 5,961,002.28 611,450.56 0.00 1,514.87 SB_OBe 5,696.59 40.63 340.71 5,166.40 5,078.00 1,482.63 -588.34 5,961,034.50 611,438.74 0.00 1,547.81 SB_OBf 5,700.00 40.63 340.71 5,168.99 5,080.59 1,484.73 -589.08 5,961,036.59 611,437.97 0.00 1,549.94 5,749.30 40.63 340.71 5,206.40 5,118.00 1,515.03 -599.68 5,961,066.72 611,426.92 0.00 1,580.75 I OBf-Base 5,800.00 40.63 340.71 5,244.88 5,156.48 1,546.20 -610.59 5,961,097.72 611,415.55 0.00 1,612.43 5,900.00 40.63 340.71 5,320.76 5,232.36 1,607.67 -632.10 5,961,158.86 611,393.13 0.00 1,674.92 1 6,000.00 40.63 340.71 5,396.65 5,308.25 1,669.14 -653.61 5,961,219.99 611,370.70 0.00 1,737.41 6,100.00 40.63 340.71 5,472.54 5,384.14 1,730.60 -675.12 5,961,281.13 611,348.28 0.00 1,799.91 6,124.85 40.63 340.71 5,491.40 5,403.00 1,745.88 -680.47 5,961,296.32 611,342.71 0.00 1,815.44 CM-2 6,200.00 40.63 340.71 5,548.43 5,460.03 1,792.07 -696.63 5,961,342.26 611,325.86 0.00 1,862.40 6,300.00 40.63 340.71 5,624.32 5,535.92 1,853.54 -718.14 5,961,403.40 611,303.43 0.00 1,924.89 6,400.00 40.63 340.71 5,700.20 5,611.80 1,915.01 -739.65 5,961,464.53 611,281.01 0.00 1,987.38 6,500.00 40.63 340.71 5,776.09 5,687.69 1,976.48 -761.17 5,961,525.67 611,258.59 0.00 2,049.87 6,600.00 40.63 340.71 5,851.98 5,763.58 2,037.94 -782.68 5,961,586.80 611,236.16 0.00 2,112.36 6,700.00 40.63 340.71 5,927.87 5,839.47 2,099.41 -804.19 5,961,647.94 611,213.74 0.00 2,174.86 6,800.00 40.63 340.71 6,003.75 5,915.35 2,160.88 -825.70 5,961,709.07 611,191.32 0.00 2,237.35 6,900.00 40.63 340.71 6,079.64 5,991.24 2,222.35 -847.21 5,961,770.21 611,168.89 0.00 2,299.84 6,987.97 40.63 340.71 6,146.40 6,058.00 2,276.42 -866.13 5,961,823.99 611,149.17 0.00 2,354.81 CM-1 7,000.00 40.63 340.71 6,155.53 6,067.13 2,283.82 -868.72 5,961,831.34 611,146.47 0.00 2,362.33 7,100.00 40.63 340.71 6,231.42 6,143.02 2,345.28 -890.23 5,961,892.48 611,124.05 0.00 2,424.82 7,200.00 40.63 340.71 6,307.30 6,218.90 2,406.75 -911.74 5,961,953.61 611,101.62 0.00 2,487.31 7,294.37 40.63 340.71 6,378.92 6,290.52 2,464.76 -932.04 5,962,011.31 611,080.46 0.00 2,546.29 7,300.00 40.63 340.37 6,383.19 6,294.79 2,468.22 -933.26 5,962,014.75 611,079.19 4.00 2,549.81 7,400.00 40.79 334.24 6,459.03 6,370.63 2,528.32 -958.41 5,962,074.47 611,053.15 4.00 2,613.31 7,453.23 41.00 331.00 6,499.27 6,410.87 2,559.26 -974.44 5,962,105.16 611,036.67 4.00 2,647.79 7,500.00 41.00 331.00 6,534.57 6,446.17 2,586.09 -989.31 5,962,131.77 611,021.40 0.00 2,678.27 4/20/2010 3:40:37PM Page 5 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTON Standard Proposal Report Database; .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska ND Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Weilbore: Plan W-19B Design: W-19B Wp 15 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (°l (1 (ft) ft (ft) (ft) (ft) (ft) 6,521.64 7,600.00 41.00 331.00 6,610.04 6,521.64 2,643.47 -1,021.12 5,962,188.66 610,988.74 0.00 2,743.44 7,615.06 41.00 331.00 6,621.40 6,533.00 2,652.11 -1,025.91 5,962,197.23 610,983.82 0.00 2,753.25 THRZ 7,700.00 41.00 331.00 6,685.51 6,597.11 2,700.86 -1,052.92 5,962,245.55 610,956.09 0.00 2,808.60 7,800.00 41.00 331.00 6,760.98 6,672.58 2,758.24 -1,084.73 5,962,302.45 610,923.43 0.00 2,873.77 I 7,886.68 41.00 331.00 6,826.40 6,738.00 2,807.98 -1,112.30 5,962,351.77 610,895.12 0.00 2,930.26 TKLB 7,893.31 41.00 331.00 6,831.40 6,743.00 2,811.78 -1,114.41 5,962,355.54 610,892.96 0.00 2,934.58 TKC4-TKB_LCU 7,900.00 41.00 331.00 6,836.45 6,748.05 2,815.62 -1,116.54 5,962,359.34 610,890.77 0.00 2,938.94 7,906.56 41.00 331.00 6,841.40 6,753.00 2,819.38 -1,118.62 5,962,363.08 610,888.63 0.00 2,943.21 TMLV 8,000.00 41.00 331.00 6,911.92 6,823.52 2,873.00 -1,148.34 5,962,416.24 610,858.12 0.00 3,004.10 8,100.00 41.00 331.00 6,987.39 6,898.99 2,930.38 -1,180.15 5,962,473.13 610,825.46 0.00 3,069.27 8,200.00 41.00 331.00 7,062.86 6,974.46 2,987.76 -1,211.96 5,962,530.03 610,792.81 0.00 3,134.44 8,300.00 41.00 331.00 7,138.33 7,049.93 3,045.14 -1,243.76 5,962,586.92 610,760.15 0.00 3,199.60 8,400.00 41.00 331.00 7,213.80 7,125.40 3,102.52 -1,275.57 5,962,643.82 610,727.50 0.00 3,264.77 8,500.00 41.00 331.00 7,289.27 7,200.87 3,159.90 -1,307.38 5,962,700.71 610,694.84 0.00 3,329.94 8,600.00 41.00 331.00 7,364.75 7,276.35 3,217.28 -1,339.18 5,962,757.61 610,662.18 0.00 3,395.11 8,700.00 41.00 331.00 7,440.22 7,351.82 3,274.66 -1,370.99 5,962,814.50 610,629.53 0.00 3,460.27 8,770.47 41.00 331.00 7,493.40 7,405.00 3,315.09 -1,393.40 5,962,854.59 610,606.52 0.00 3,506.19 TKNG 8,796.97 41.00 331.00 7,513.40 7,425.00 3,330.30 -1,401.83 5,962,869.67 610,597.86 0.00 3,523.46 TJG 8,800.00 41.00 331.00 7,515.69 7,427.29 3,332.04 -1,402.79 5,962,871.40 610,596.87 0.00 3,525.44 8,900.00 41.00 331.00 7,591.16 7,502.76 3,389.42 -1,434.60 5,962,928.29 610,564.22 0.00 3,590.61 1 9,000.00 41.00 331.00 7,666.63 7,578.23 3,446.80 -1,466.41 5,962,985.19 610,531.56 0.00 3,655.77 9,100.00 41.00 331.00 7,742.10 7,653.70 3,504.18 -1,498.21 5,963,042.08 610,498.91 0.00 3,720.94 9,197.12 41.00 331.00 7,815.40 7,727.00 3,559.91 -1,529.10 5,963,097.34 610,467.19 0.00 3,784.23 TJF 9,200.00 41.00 331.00 7,817.57 7,729.17 3,561.56 -1,530.02 5,963,098.98 610,466.25 0.00 3,786.11 9,300.00 41.00 331.00 7,893.04 7,804.64 3,618.94 -1,561.83 5,963,155.87 610,433.60 0.00 3,851.27 9,400.00 41.00 331.00 7,968.51 7,880.11 3,676.32 -1,593.63 5,963,212.77 610,400.94 0.00 3,916.44 9,485.98 41.00 331.00 8,033.40 7,945.00 3,725.65 -1,620.98 5,963,261.68 610,372.86 0.00 3,972.47 TJE 9,500.00 41.00 331.00 8,043.98 7,955.58 3,733.70 -1,625.44 5,963,269.66 610,368.28 0.00 3,981.61 9,600.00 41.00 331.00 8,119.46 8,031.06 3,791.08 -1,657.25 5,963,326.55 610,335.63 0.00 4,046.77 9,700.00 41.00 331.00 8,194.93 8,106.53 3,848.46 -1,689.05 5,963,383.45 610,302.97 0.00 4,111.94 9,781.45 41.00 331.00 8,256.40 8,168.00 3,895.20 -1,714.96 5,963,429.79 610,276.37 0.00 4,165.02 TJD 9,800.00 41.00 331.00 8,270.40 8,182.00 3,905.84 -1,720.86 5,963,440.34 610,270.32 0.00 4,177.11 9,900.00 41.00 331.00 8,345.87 8,257.47 3,963.22 -1,752.66 5,963,497.24 610,237.66 0.00 4,242.28 10,000.00 41.00 331.00 8,421.34 8,332.94 4,020.60 -1,784.47 5,963,554.13 610,205.01 0.00 4,307.44 10,047.78 41.00 331.00 8,457.40 8,369.00 4,048.02 -1,799.67 5,963,581.32 610,189.40 0.00 4,338.58 TJC 4/20/2010 3:40:37PM Page 6 COMPASS 2003.16 Build 71 Sperry Drilling . H A LL I B U R TO N Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section 1 (ft) (°) (1 (ft) ft (ft) (ft) (ft) (ft) 8,408.41 10,100.00 41.00 331.00 8,496.81 8,408.41 4,077.98 -1,816.28 5,963,611.03 610,172.35 0.00 4,372.61 10,200.00 41.00 331.00 8,572.28 8,483.88 4,135.36 -1,848.08 5,963,667.92 610,139.70 0.00 4,437.78 10,237.26 41.00 331.00 8,600.40 8,512.00 4,156.74 -1,859.93 5,963,689.12 610,127.53 0.00 4,462.06 TJB 10,300.00 41.00 331.00 8,647.75 8,559.35 4,192.74 -1,879.89 5,963,724.82 610,107.04 0.00 4,502.94 10,326.03 41.00 331.00 8,667.40 8,579.00 4,207.68 -1,888.17 5,963,739.63 610,098.54 0.00 4,519.91 TJA 10,400.00 41.00 331.00 8,723.22 8,634.82 4,250.12 -1,911.70 5,963,781.71 610,074.38 0.00 4,568.11 10,442.63 41.00 331.00 8,755.40 8,667.00 4,274.58 -1,925.26 5,963,805.97 610,060.46 0.00 4,595.89 TSGR-9518" 10,453.23 41.00 331.00 8,763.40 8,675.00 4,280.67 -1,928.63 5,963,812.00 610,057.00 0.00 4,602.80 W-19B T1 10,481.67 43.78 331.87 8,784.40 8,696.00 4,297.50 -1,937.79 5,963,828.70 610,047.59 10.00 4,621.82 TSHA 10,500.00 45.58 332.38 8,797.43 8,709.03 4,308.90 -1,943.82 5,963,840.00 610,041.40 10.00 4,634.59 10,514.41 46.99 332.77 8,807.39 8,718.99 4,318.15 -1,948.61 5,963,849.17 610,036.46 10.00 4,644.91 10,562.81 46.99 332.77 8,840.40 8,752.00 4,349.61 -1,964.81 5,963,880.39 610,019.80 0.00 4,679.91 TSHB 10,592.13 46.99 332.77 8,860.40 8,772.00 4,368.68 -1,974.62 5,963,899.31 610,009.71 0.00 4,701.13 I TSHC 10,596.05 46.99 332.77 8,863.07 8,774.67 4,371.22 -1,975.93 5,963,901.83 610,008.36 0.00 4,703.96 10,600.00 47.35 332.54 8,865.76 8,777.36 4,373.80 -1,977.26 5,963,904.39 610,006.99 10.00 4,706.83 7518" 10,623.57 49.49 331.23 8,881.40 8,793.00 4,389.35 -1,985.57 5,963,919.81 609,998.45 10.00 4,724.31 TSHD 10,626.66 49.78 331.06 8,883.40 8,795.00 4,391.41 -1,986.71 5,963,921.85 609,997.28 10.00 4,726.64 TEIL 10,647.19 51.66 330.00 8,896.40 8,808.00 4,405.24 -1,994.53 5,963,935.57 609,989.26 10.00 4,742.44 TSAD 10,694.66 56.04 327.73 8,924.40 8,836.00 4,438.03 -2,014.36 5,963,968.05 609,968.94 10.00 4,780.64 45N 10,700.00 56.53 327.49 8,927.37 8,838.97 4,441.78 -2,016.74 5,963,971.77 609,966.51 10.00 4,785.08 10,701.88 56.71 327.41 8,928.40 8,840.00 4,443.10 -2,017.58 5,963,973.08 609,965.64 10.00 4,786.65 45N 10,709.24 57.39 327.08 8,932.40 8,844.00 4,448.29 -2,020.92 5,963,978.22 609,962.23 10.00 4,792.81 45P 10,711.10 57.56 327.00 8,933.40 8,845.00 4,449.61 -2,021.78 5,963,979.52 609,961.35 10.00 4,794.38 45P 10,750.38 61.23 325.35 8,953.40 8,865.00 4,477.69 -2,040.60 5,964,007.31 609,942.11 10.00 4,828.17 44N 10,760.94 62.21 324.93 8,958.40 8,870.00 4,485.31 -2,045.92 5,964,014.86 609,936.69 10.00 4,837.46 44P 10,763.09 62.42 324.84 8,959.40 8,871.00 4,486.87 -2,047.01 5,964,016.40 609,935.57 10.00 4,839.37 l 44N 10,790.16 64.95 323.79 8,971.40 8,883.00 4,506.58 -2,061.17 5,964,035.89 609,921.12 10.00 4,863.63 44P 4/20/2010 3:40:37PM Page 7 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTON Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +NI-S +E/-W Northing Easting DLS Vert Section (ft) C) C) (ft) ft (ft) (ft) (ft) (ft) 8,885.00 10,794.92 65.40 323.61 8,973.40 8,885.00 4,510.07 -2,063.73 5,964,039.34 609,918.51 10.00 4,867.96 45N 10,800.00 65.88 323.42 8,975.49 8,887.09 4,513.78 -2,066.47 5,964,043.01 609,915.71 10.00 4,872.58 10,804.71 66.32 323.25 8,977.40 8,889.00 4,517.23 -2,069.04 5,964,046.43 609,913.09 10.00 4,876.88 43N-45P 10,817.46 67.52 322.78 8,982.40 8,894.00 4,526.61 -2,076.10 5,964,055.69 609,905.89 10.00 4,888.61 43P 10,866.82 72.18 321.04 8,999.40 8,911.00 4,563.06 -2,104.69 5,964,091.71 609,876.76 10.00 4,934.89 42N-44N 10,870.12 72.49 320.92 9,000.40 8,912.00 4,565.50 -2,106.67 5,964,094.12 609,874.75 10.00 4,938.03 43N 10,880.37 73.46 320.58 9,003.40 8,915.00 4,573.09 -2,112.87 5,964,101.62 609,868.44 10.00 4,947.81 42P 10,895.01 74.85 320.08 9,007.40 8,919.00 4,583.93 -2,121.86 5,964,112.33 609,859.28 10.00 4,961.86 43P 10,898.89 75.21 319.95 9,008.40 8,920.00 4,586.80 -2,124.27 5,964,115.16 609,856.84 10.00 4,965.59 44P 10,900.00 75.32 319.92 9,008.68 8,920.28 4,587.62 -2,124.96 5,964,115.97 609,856.13 10.00 4,966.67 10,929.20 78.09 318.96 9,015.40 8,927.00 4,609.21 -2,143.44 5,964,137.28 609,837.33 10.00 4,994.98 42N 10,950.33 80.09 318.28 9,019.40 8,931.00 4,624.78 -2,157.15 5,964,152.64 609,823.39 10.00 5,015.62 42P 11,000.00 84.81 316.70 9,025.93 8,937.53 4,661.06 -2,190.42 5,964,188.41 609,789.59 10.00 5,064.49 I 11,054.65 90.00 315.00 9,028.40 8,940.00 4,700.22 -2,228.43 5,964,227.00 609,751.00 10.00 5,118.46 W-19B T2 11,100.00 90.00 310.47 9,028.40 8,940.00 4,730.98 -2,261.73 5,964,257.26 609,717.25 10.00 5,162.86 11,131.83 90.00 307.28 9,028.40 8,940.00 4,750.96 -2,286.51 5,964,276.86 609,692.18 10.00 5,193.54 11,200.00 90.00 307.28 9,028.40 8,940.00 4,792.25 -2,340.75 5,964,317.34 609,637.33 0.00 5,258.70 11,300.00 90.00 307.28 9,028.40 8,940.00 4,852.82 -2,420.31 5,964,376.71 609,556.88 0.00 5,354.28 11,400.00 90.00 307.28 9,028.40 8,940.00 4,913.40 -2,499.88 5,964,436.09 609,476.43 0.00 5,449.87 11,487.73 90.00 307.28 9,028.40 8,940.00 4,966.54 -2,569.68 5,964,488.18 609,405.85 0.00 5,533.73 11,500.00 90.00 306.06 9,028.40 8,940.00 4,973.87 -2,579.53 5,964,495.36 609,395.90 10.00 5,545.42 11,600.00 90.00 296.06 9,028.40 8,940.00 5,025.39 -2,665.08 5,964,545.60 609,309.59 10.00 5,637.13 I 11,610.55 90.00 295.00 9,028.40 8,940.00 5,029.94 -2,674.60 5,964,550.00 609,300.00 10.00 5,646.38 W-19B T3 11,700.00 93.67 286.84 9,025.53 8,937.13 5,061.83 -2,758.03 5,964,580.64 609,216.12 10.00 5,720.90 11,757.28 95.98 281.58 9,020.71 8,932.31 5,075.84 -2,813.34 5,964,593.82 609,160.61 10.00 5,764.51 11,800.00 95.98 281.58 9,016.26 8,927.86 5,084.36 -2,854.96 5,964,601.73 609,118.87 0.00 5,795.68 11,900.00 95.98 281.58 9,005.84 8,917.44 5,104.32 -2,952.39 5,964,620.23 609,021.16 0.00 5,868.67 12,000.00 95.98 281.58 8,995.42 8,907.02 5,124.28 -3,049.82 5,964,638.73 608,923.45 0.00 5,941.65 12,100.00 95.98 281.58 8,985.00 8,896.60 5,144.24 -3,147.25 5,964,657.23 608,825.74 0.00 6,014.63 12,200.00 95.98 281.58 8,974.58 8,886.18 5,164.20 -3,244.69 5,964,675.74 608,728.03 0.00 6,087.62 12,300.00 95.98 281.58 8,964.15 8,875.75 5,184.16 -3,342.12 5,964,694.24 608,630.32 0.00 6,160.60 12,400.00 95.98 281.58 8,953.73 8,865.33 5,204.12 -3,439.55 5,964,712.74 608,532.61 0.00 6,233.58 12,500.00 95.98 281.58 8,943.31 8,854.91 5,224.08 -3,536.98 5,964,731.25 608,434.90 0.00 6,306.57 4/20/2010 3:40:37PM Page 8 COMPASS 2003.16 Build 71 . Sperry Drilling . HALLIBURTO. . Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Welibore: Plan W-19B Design: W-19B Wp 15 Planned Survey Measured Vertical Map Map Depth Inclination Azimuth Depth TVDss +N/-S +E/-W Northing Easting DLS Vert Section (ft) (°) (°) (ft) ft (ft) (ft) (ft) (ft) 8,844.49 12,600.00 95.98 281.58 8,932.89 8,844.49 5,244.04 -3,634.41 5,964,749.75 608,337.19 0.00 6,379.55 12,602.68 95.98 281.58 8,932.61 8,844.21 5,244.57 -3,637.02 5,964,750.24 608,334.57 0.00 6,381.50 12,700.00 94.43 291.23 8,923.76 8,835.36 5,271.91 -3,729.88 5,964,776.20 608,241.32 10.00 6,457.83 12,800.00 92.71 301.10 8,917.52 8,829.12 5,315.87 -3,819.35 5,964,818.81 608,151.22 10.00 6,545.67 12,839.65 92.00 305.00 8,915.89 8,827.49 5,337.47 -3,852.55 5,964,839.91 608,117.70 10.00 6,582.57 12,900.00 92.00 305.00 8,913.78 8,825.38 5,372.06 -3,901.95 5,964,873.76 608,067.79 0.00 6,639.47 12,939.65 92.00 305.00 8,912.40 8,824.00 5,394.79 -3,934.41 5,964,896.00 608,035.00 0.00 6,676.85 W-191314 rev 1 13,000.00 90.33 310.80 8,911.17 8,822.77 5,431.84 -3,982.00 5,964,932.33 607,986.87 10.00 6,734.69 13,100.00 87.56 320.41 8,913.02 8,824.62 5,503.19 -4,051.86 5,965,002.62 607,915.96 10.00 6,833.38 13,200.00 84.86 330.06 8,919.64 8,831.24 5,585.05 -4,108.69 5,965,083.62 607,857.92 10.00 6,933.02 13,252.28 83.50 335.14 8,924.95 8,836.55 5,631.21 -4,132.62 5,965,129.42 607,833.30 10.00 6,984.48 13,300.00 83.50 335.14 8,930.35 8,841.95 5,674.23 -4,152.56 5,965,172.13 607,812.73 0.00 7,031.05 13,351.55 83.50 335.14 8,936.18 8,847.78 5,720.69 -4,174.09 5,965,218.27 607,790.51 0.00 7,081.37 13,400.00 78.71 335.85 8,943.67 8,855.27 5,764.24 -4,193.94 5,965,261.51 607,770.01 10.00 7,128.33 13,500.00 68.82 337.40 8,971.60 8,883.20 5,852.24 -4,232.01 5,965,348.93 607,730.64 10.00 7,222.04 13,600.00 58.95 339.18 9,015.57 8,927.17 5,935.54 -4,265.23 5,965,431.71 607,696.18 10.00 7,309.09 13,637.90 55.21 339.95 9,036.16 8,947.76 5,965.34 -4,276.34 5,965,461.34 607,684.63 10.00 7,339.78 4 112" 13,640.06 55.00 340.00 9,037.40 8,949.00 5,967.01 -4,276.95 5,965,463.00 607,684.00 10.00 7,341.49 W-198 T6 4/20/2010 3:40:37PM Page 9 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTO1111 Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska ND Reference: : W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Welibore: Plan W-19B Design: W-19B Wp 15 Targets Target Name hitlmiss target Dip Angle Dip Dir. ND +N/.S +E/-W Northing Easting -Shape (e) (°) (ft) (ft) (ft) (ft) (ft) W-19B Flt 7 0.00 0.00 8,958.40 5,800.65 -3,383.25 5,965,310.00 608,580.00 -plan misses target center by 595.81ft at 12463.73ft MD(8947.09 ND,5216.84 N,-3501.64 E) -Polygon Point 1 8,958.40 5,800.65 -3,383.25 5,965,310.00 608,580.00 Point 2 8,958.40 5,421.86 -3,468.92 5,964,930.00 608,500.00 W-19B T1 0.00 0.00 8,763.40 4,280.67 -1,928.63 5,963,812.00 610,057.00 -plan hits target center -Point W-19B Flt 1 0.00 0.00 8,938.40 5,240.62 -1,041.14 5,964,785.00 610,930.00 -plan misses target center by 1257.00ft at 10776.55ft MD(8965.50 TVD,4496.65 N,-2053.97 E) -Polygon Point 1 8,938.40 5,240.62 -1,041.14 5,964,785.00 610,930.00 I Point2 8,938.40 4,227.89 -1,206.27 5,963,770.00 610,780.00 Point 3 8,938.40 3,393.20 -1,573.79 5,962,930.00 610,425.00 Point 4 8,938.40 4,227.89 -1,206.27 5,963,770.00 610,780.00 W-19B Flt 5 0.00 0.00 8,968.40 5,885.36 -3,026.92 5,965,400.00 608,935.00 -plan misses target center by 750.31ft at 12132.41ft MD(8981.62 TVD,5150.71 N,-3178.83 E) -Polygon Point 1 8,968.40 5,885.36 -3,026.92 5,965,400.00 608,935.00 Point 2 8,968.40 5,238.28 -3,231.61 5,964,750.00 608,740.00 W-19B Geo-Poly 0.00 0.00 9,028.40 4,700.22 -2,228.43 5,964,227.00 609,751.00 I -plan hits target center -Polygon Point 1 9,028.40 4,149.72 -1,932.53 5,963,681.02 610,055.05 Point 2 9,028.40 4,474.72 -1,931.73 5,964,005.97 610,051.00 Point 3 9,028.40 4,618.12 -2,022.63 5,964,147.98 609,957.98 Point 4 9,028.40 4,780.22 -2,162.23 5,964,307.97 609,815.99 Point 5 9,028.40 4,838.22 -2,227.33 5,964,364.99 609,750.04 Point 6 9,028.40 4,944.42 -2,372.83 5,964,469.00 609,602.99 Point 7 9,028.40 5,035.22 -2,492.53 5,964,558.00 609,481.96 Point 8 9,028.40 5,124.32 -2,633.23 5,964,644.98 609,339.96 Point9 9,028.40 5,162.92 -2,740.63 5,964,681.97 609,232.00 Point 10 9,028.40 5,296.52 -3,513.83 5,964,804.02 608,456.96 Point 11 9,028.40 5,380.92 -3,742.53 5,964,884.99 608,227.05 Point 12 9,028.40 5,483.12 -3,889.13 5,964,984.99 608,078.95 Point 13 9,028.40 5,615.92 -4,006.13 5,965,116.02 607,960.00 'I Point 14 9,028.40 5,952.42 -4,173.13 5,965,449.96 607,788.01 I Point 15 9,028.40 5,980.02 -4,274.73 5,965,476.04 607,686.02 Point 16 9,028.40 5,944.52 -4,313.33 5,965,439.97 607,647.96 Point 17 9,028.40 5,862.92 -4,342.53 5,965,357.95 607,619.98 Point 18 9,028.40 5,752.42 -4,310.13 5,965,247.96 607,654.02 Point 19 9,028.40 5,508.72 -4,198.73 5,965,005.97 607,769.03 Point 20 9,028.40 5,386.22 -4,098.53 5,964,884.98 607,871.04 Point 21 9,028.40 5,262.82 -3,941.33 5,964,763.95 608,030.05 I Point 22 9,028.40 5,148.92 -3,678.03 5,964,654.00 608,295.00 Point 23 9,028.40 5,091.42 -3,440.83 5,964,600.05 608,533.01 I Point 24 9,028.40 4,995.22 -2,892.13 5,964,512.05 609,083.03 Point 25 9,028.40 4,926.32 -2,702.13 5,964,445.99 609,274.02 Point 26 9,028.40 4,662.82 -2,339.03 5,964,187.96 609,640.98 Point 27 9,028.40 4,541.02 -2,216.83 5,964,068.00 609,764.97 Point 28 9,028.40 4,149.72 -1,932.53 5,963,681.02 610,055.05 W-19B Flt 8 0.00 0.00 8,938.40 6,945.23 -4,681.44 5,966,435.00 607,265.00 -plan misses target center by 1063.17ft at 13640.06ft MD(9037.40 TVD,5967.01 N,-4276.95 E) -Polygon Point 1 8,938.40 6,945.23 -4,681.44 5,966,435.00 607,265.00 4/20/2010 3:40:37PM Page 10 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTO Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Welibore: Plan W-19B Design: W-19B Wp 15 Point 2 8,938.40 6,231.37 -4,432.04 5,965,725.00 607,525.00 Point 3 8,938.40 5,083.64 -4,934.25 5,964,570.00 607,040.00 Point 4 8,938.40 4,184.85 -5,027.67 5,963,670.00 606,960.00 Point 5 8,938.40 5,083.64 -4,934.25 5,964,570.00 607,040.00 Point 6 8,938.40 6,231.37 -4,432.04 5,965,725.00 607,525.00 W-19B Flt 2 0.00 0.00 8,938.40 5,982.68 -1,840.24 5,965,515.00 610,120.00 -plan misses target center by 1253.94ft at 11500.00ft MD(9028.40 TVD,4973.87 N,-2579.53 E) -Polygon Point 1 8,938.40 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point 2 8,938.40 4,501.38 -1,772.31 5,964,035.00 610,210.00 Point 3 8,938.40 3,971.24 -1,770.21 5,963,505.00 610,220.00 Point 4 8,938.40 3,539.83 -2,016.69 5,963,070.00 609,980.00 Point 5 8,938.40 3,971.24 -1,770.21 5,963,505.00 610,220.00 Point6 8,938.40 4,501.38 -1,772.31 5,964,035.00 610,210.00 W-19B Flt 4 0.00 0.00 8,938.40 5,887.38 -2,491.78 5,965,410.00 609,470.00 -plan misses target center by 871.79ft at 11700.00ft MD(9025.53 TVD,5061.83 N,-2758.03 E) -Polygon Point 1 8,938.40 5,887.38 -2,491.78 5,965,410.00 609,470.00 Point 2 8,938.40 5,327.84 -2,530.13 5,964,850.00 609,440.00 Point 3 8,938.40 4,847.41 -2,507.29 5,964,370.00 609,470.00 Point 4 8,938.40 4,154.14 -2,632.65 5,963,675.00 609,355.00 Point 5 8,938.40 3,845.86 -2,752.27 5,963,365.00 609,240.00 Point6 8,938.40 3,341.84 -2,824.80 5,962,860.00 609,175.00 Point 7 8,938.40 3,845.86 -2,752.27 5,963,365.00 609,240.00 Point 8 8,938.40 4,154.14 -2,632.65 5,963,675.00 609,355.00 Point 9 8,938.40 4,847.41 -2,507.29 5,964,370.00 609,470.00 Point 10 8,938.40 5,327.84 -2,530.13 5,964,850.00 609,440.00 W-195 Fit SV1 0.00 0.00 3,328.40 315.01 -394.45 5,959,870.00 611,650.00 -plan misses target center by 334.41ft at 3463.10ft MD(3438.70 TVD,153.48 N,-123.21 E) -Polygon Point 1 3,328.40 315.01 -394.45 5,959,870.00 611,650.00 Point 2 3,328.40 110.54 -97.44 5,959,670.00 611,950.00 Point 3 3,328.40 -93.92 199.57 5,959,470.00 612,250.00 W-19B Fit 3 0.00 0.00 8,928.40 5,901.04 -2,401.56 5,965,425.00 609,560.00 -plan misses target center by 915.09ft at 11669.821t MD(9027.14 TVD,5052.41 N,-2729.41 E) -Polygon Point 1 8,928.40 5,901.04 -2,401.56 5,965,425.00 609,560.00 Point 2 8,928.40 5,510.82 -2,392.38 5,965,035.00 609,575.00 Point 3 8,928.40 5,361.05 -2,409.62 5,964,885.00 609,560.00 Point 4 8,928.40 4,760.84 -2,403.56 5,964,285.00 609,575.00 j Point 5 8,928.40 4,347.42 -2,514.75 5,963,870.00 609,470.00 Point 6 8,928.40 4,760.84 -2,403.56 5,964,285.00 609,575.00 Point 7 8,928.40 5,361.05 -2,409.62 5,964,885.00 609,560.00 Point 8 8,928.40 5,510.82 -2,392.38 5,965,035.00 609,575.00 W-19B Flt 9 0.00 0.00 8,988.40 6,231.37 -4,432.04 5,965,725.00 607,525.00 -plan misses target center by 310.39ft at 13640.06ft MD(9037.40 ND,5967.01 N,-4276.95 E) -Polygon Point 1 8,988.40 6,231.37 -4,432.04 5,965,725.00 607,525.00 Point 2 8,988.40 5,853.79 -2,922.37 5,965,370.00 609,040.00 Point 3 8,988.40 5,901.04 -2,401.56 5,965,425.00 609,560.00 Point4 8,988.40 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point 5 8,988.40 5,539.29 393.59 5,965,105.00 612,360.00 Point6 8,988.40 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point 7 8,988.40 5,901.04 -2,401.56 5,965,425.00 609,560.00 Point 8 8,988.40 5,853.79 -2,922.37 5,965,370.00 609,040.00 W-19B T2 0.00 0.00 9,028.40 4,700.22 -2,228.43 5,964,227.00 609,751.00 -plan hits target center -Point W-19B T5 rev 1 0.00 0.00 8,935.40 5,743.87 -4,203.26 5,965,241.00 607,761.00 -plan misses target center by 17.73ft at 13384.22ft MD(8940.80 ND,5750.10 N,-4187.57 E) -Point 4/20/2010 3:40:37PM Page 11 COMPASS 2003.16 Build 71 Sperry Drilling • HALLIBURTO. 41 Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 W-19B T4 rev 1 0.00 0.00 8,912.40 5,394.79 -3,934.41 5,964,896.00 608,035.00 -plan hits target center -Point W-19B T6 0.00 0.00 9,037.40 5,967.01 -4,276.95 5,965,463.00 607,684.00 -plan hits target center -Point W-19B T3 0.00 0.00 9,028.40 5,029.94 -2,674.60 5,964,550.00 609,300.00 -plan hits target center -Point W-19B Flt 6 0.00 0.00 8,958.40 5,669.02 -3,275.19 5,965,180.00 608,690.00 -plan misses target center by 488.43ft at 12332.17ft MD(8960.80 TVD,5190.58 N,-3373.46 E) -Polygon Point 1 8,958.40 5,669.02 -3,275.19 5,965,180.00 608,690.00 Point 2 8,958.40 5,360.07 -3,349.82 5,964,870.00 608,620.00 W-19B T4 0.00 0.00 8,913.40 5,398.87 -3,939.35 5,964,900.00 608,030.00 -plan misses target center by 1.30ft at 12946.03ft MD(8912.19 TVD,5398.48 N,-3939.62 E) -Point 1 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name r) (1 10,442.63 8,755.40 9 5/8" 9-5/8 12-1/4 10,600.00 8,865.76 75/8" 7-5/8 8-1/2 13,637.90 9,036.17 4 1/2" 4-1/2 6-1/8 2,689.90 2,684.70 13 3/8" 13-3/8 17-1/2 4/20/2010 3:40:37PM Page 12 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTO111 Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19B Design: W-19B Wp 15 !, Formations Measured Vertical Vertical Dip Depth Depth Depth SS Dip Direction 1 (ft) (ft) ft Lithology (1 (*) 10,481.67 8,784.40 TSHA 9,485.98 8,033.40 TJE 10,880.37 9,003.40 42P 5,643.88 5,126.40 SB_OBe 5,492.34 5,011.40 SB_OBc 10,711.10 8,933.40 45P 10,326.03 8,667.40 TJA 7,615.06 6,621.40 THRZ 4,873.00 4,541.40 UG_Ma 10,709.24 8,932.40 45P 3,482.61 3,456.40 UG4A 5,558.23 5,061.40 SB_OBd 10,760.94 8,958.40 44P 8,770.47 7,493.40 TKNG 9,781.45 8,256.40 TJD 10,626.66 8,883.40 TEIL 10,804.71 8,977.40 45P 7,906.56 6,841.40 TMLV 5,057.49 4,681.40 UG_Mc 5,749.30 5,206.40 OBf-Base 10,763.09 8,959.40 44N 10,895.02 9,007.40 43P 10,701.88 8,928.40 45N 10,870.12 9,000.40 43N 10,866.82 8,999.40 44N 10,750.38 8,953.40 44N 6,987.97 6,146.40 CM-1 10,804.71 8,977.40 43N 7,893.31 6,831.40 TKC4 4,925.71 4,581.40 UG_Mb1 10,237.26 8,600.40 TJB 3,444.14 3,421.40 UG4 10,047.78 8,457.40 TJC 10,562.81 8,840.40 TSHB 10,817.46 8,982.40 43P 10,794.93 8,973.40 45N 5,143.14 4,746.40 SB_Na 10,647.19 8,896.40 TSAD 3,884.70 3,791.40 UG3 10,442.63 8,755.40 TSGR 4,978.42 4,621.40 UG_Mb2 5,347.39 4,901.40 SB_OA 10,592.13 8,860.40 TSHC 10,950.33 9,019.40 42P 6,124.85 5,491.40 CM-2 4,477.68 4,241.40 UG1 5,182.67 4,776.40 SB_Nb 10,790.16 8,971.40 44P 4!20/2010 3:40:37PM Page 13 COMPASS 2003.16 Build 71 Sperry Drilling . HALLIBURTO. v Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wel[bore: Plan W-19B Design: W-19B Wp 15 1 7,886.68 6,826.40 TKLB I 9,197.12 7,815.40 TJF 10,898.89 9,008.40 44P 10,623.57 8,881.40 TSHD 10,694.66 8,924.40 45N 10,929.20 9,015.40 42N 8,796.97 7,513.40 TJG 10,866.82 8,999.40 42N 7,893.31 6,831.40 TKB_LCU 5,439.63 4,971.40 SB_OBb 5,696.59 5,166.40 SB_OBf 5,400.10 4,941.40 SB OBa 4/20/2010 3:40:37PM Page 14 COMPASS 2003.16 Build 71 North America - ALASKA - BP Prudhoe Bay PB W Pad W-19 Plan W-19B W-19B Wp15 Anticollision Summary Report 11 May, 2010 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Reference Site: PB W Pad MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Site Error: 0.00ft North Reference: True Reference Well: W-19 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan W-19B Database: EDM.16-Anc Prod-WH24P Reference Design: W-19B Wp15 Offset TVD Reference: Offset Datum Reference W-19B Wp15 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 3,088.95 to 13,640.10ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,560.46ft Error Surface: Elliptical Conic Survey Tool Program Date 5/10/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 35.75 3,088.95 1 :Schlumberger GCT multishot(W-19) GCT-MS Schlumberger GCT multishot 3,088.95 3,300.00 W-19B Wp15(Plan W-19B) INC+TREND Inclinometer+known azi trend 3,300.00 10,442.60 W-19B Wp15(Plan W-19B) MWD+IFR+MS MWD+IFR+Multi Station 10,442.60 10,600.00 W-19B Wp15(Plan W-19B) MWD+IFR+MS MWD+IFR+Multi Station 10,600.00 13,640.10 W-19B Wp15(Plan W-19B) MWD+IFR+MS MWD+IFR+Multi Station 5/11/2010 11:50:32AM Page 2 of 5 COMPASS 2003.16 Build 71 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Reference Site: PB W Pad MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Site Error: 0.00ft North Reference: True Reference Well: W-19 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan W-19B Database: EDM.16-Anc Prod-WH24P Reference Design: W-19B Wp15 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB W Pad Plan W-202-Plan W-202 OBd-Plan#6 W-202 0 Out of range Plan W-202-Plan W-202L1 OBc-Plan#6 W-202 Out of range Plan W-202-Plan W-202L2 OBa-Plan#6 W-202 Out of range Plan W-219-Plan W-219-Plan#4 W-219 Out of range Plan W-59-Plan W-59-Plan#1 W-59 4,015.62 3,900.00 576.30 123.41 454.54 Pass-Major Risk Plan W-70-Plan W-70-Plan#1 W-70 9,237.31 8,925.00 696.33 206.65 545.10 Pass-Major Risk W-15-W-15-W-15 3,109.11 3,150.00 242.77 45.58 198.52 Pass-Major Risk W-15-W-15A-W-15A 3,109.11 3,150.00 242.77 45.58 198.52 Pass-Major Risk W-15-W-15PB1 -W-15PB1 3,109.11 3,150.00 242.77 45.58 198.52 Pass-Major Risk W-15-W-15PB2-W-15PB2 3,109.11 3,150.00 242.77 45.58 198.52 Pass-Major Risk W-16-W-16-W-16 3,096.82 3,125.00 186.88 40.64 146.44 Pass-Major Risk W-16-W-16A-W-16A 3,096.82 3,125.00 186.88 40.64 146.44 Pass-Major Risk W-16-W-16APB1 -W-16APB1 3,096.82 3,125.00 186.88 40.64 146.44 Pass-Major Risk W-16_DIMS-W-16-W-16 Out of range W-16_DIMS-W-16L1 -W-16L1 Out of range W-17-W-17-W-17 3,091.70 3,450.00 1,123.22 64.26 1,065.39 Pass-Major Risk W-17-W-17A-W-17A 3,088.95 3,450.00 1,121.22 64.22 1,063.43 Pass-Major Risk W-17_DIMS-W-17-W-17 Out of range W-17_DIMS-W-17-W-17 Out of range W-18-W-18-W-18 3,091.01 3,100.00 144.20 46.03 98.43 Pass-Major Risk W-19-Plan W-19BL1 -W-19BL1 Wp14 10,550.00 10,550.00 0.01 0.59 -0.59 FAIL-Major Risk W-19-Plan W-19BL1PB1 -W-19BL1PB1 Wp7.0 10,557.00 10,550.00 0.10 0.68 -0.59 FAIL-Major Risk W-19-W-19-W-19 5,024.65 5,050.00 15.93 119.70 -103.75 FAIL-Major Risk W-19-W-19A-W-19A 5,031.67 5,050.00 16.14 119.93 -103.52 FAIL-Major Risk W-19-W-19AL1 -W-19AL1 5,031.67 5,050.00 16.14 119.93 -103.52 FAIL-Major Risk W-19-W-19AL1 PB1 -W-19AL1 PB1 5,031.67 5,050.00 16.14 119.93 -103.52 FAIL-Major Risk W-19-W-19AL1 PB2-W-19AL1 PB2 5,031.67 5,050.00 16.14 119.93 -103.52 FAIL-Major Risk W-20-W-20-W-20 3,097.67 3,100.00 143.59 48.61 95.22 Pass-Major Risk W-200-W-200-W-200 3,300.74 3,300.00 317.68 98.23 219.55 Pass-Major Risk W-200-W-200PB1 -W-200PB1 3,300.74 3,300.00 317.68 98.34 219.44 Pass-Major Risk W-201 -W-201 -W-201 3,100.00 3,425.00 1,353.31 55.26 1,307.23 Pass-Major Risk W-204-W-204-W-204 3,413.39 3,325.00 380.55 115.40 277.78 Pass-Major Risk W-204-W-204L1 -W-204L1 3,413.39 3,325.00 380.55 115.40 277.78 Pass-Major Risk W-204-W-204L2-W-204L2 3,413.39 3,325.00 380.55 115.40 277.78 Pass-Major Risk W-204-W-204PB1 -W-204PB1 3,413.39 3,325.00 380.55 115.40 277.78 Pass-Major Risk W-21 -Plan 6,W-21AL1 -Plan 6 3,289.03 3,300.00 181.57 98.74 90.49 Pass-Major Risk W-21 -Plan 6,W-21AL1-01 -Plan 6 3,289.03 3,300.00 181.57 98.74 90.49 Pass-Major Risk W-21 -W-21 -W-21 3,300.00 3,325.00 184.07 102.49 90.42 Pass-Major Risk W-21 -W-21A-W-21A 3,289.03 3,300.00 181.57 99.02 90.21 Pass-Major Risk W-210-W-210-W-210 Out of range W-211 -W-211 -W-211 Out of range W-212-W-212-W-212 3,097.82 3,400.00 1,006.53 79.60 954.06 Pass-Major Risk W-215-W-215-W-215 Out of range W-22-W-22-W-22 3,304.03 3,300.00 103.05 99.62 10.38 Pass-Major Risk W-23-W-23-W-23 3,655.54 3,600.00 154.12 130.01 28.84 Pass-Major Risk W-23-W-23A-W-23A 3,663.57 3,600.00 154.72 130.11 28.87 Pass-Major Risk W-23A_DIMS-W-23A-W-23A Out of range W-24-W-24-W-24 3,395.42 3,375.00 139.95 117.73 22.49 Pass-Major Risk W-25-W-25-W-25 3,300.00 3,375.00 427.63 101.21 340.41 Pass-Major Risk W-25-W-25A-W-25A 3,300.00 3,375.00 427.63 101.21 340.41 Pass-Major Risk W-26-W-26-W-26 13,112.18 11,800.00 335.76 322.15 24.71 Pass-Major Risk W-26-W-26A-W-26A 13,258.99 12,620.00 458.60 333.28 143.97 Pass-Major Risk W-27-Plan W-27B-Plan#1 3,094.38 3,125.00 360.65 52.94 307.82 Pass-Major Risk 5/11/2010 11:50:32AM Page 3 of 5 COMPASS 2003.16 Build 71 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Reference Site: PB W Pad MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Site Error: 0.00ft North Reference: True Reference Well: W-19 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan W-19B Database: EDM.16-Anc Prod-WH24P Reference Design: W-19B Wp15 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB W Pad W-27-W-27-W-27 3,109.34 3,150.00 364.96 54.71 310.88 Pass-Major Risk W-27-W-27A-W-27A 3,109.34 3,150.00 364.96 54.71 310.88 Pass-Major Risk W-29-W-29-W-29 3,359.88 3,400.00 277.77 111.54 174.06 Pass-Major Risk W-30-W-30-W-30 3,107.39 3,125.00 273.39 47.11 226.47 Pass-Major Risk W-31 -W-31 -W-31 3,300.00 3,325.00 283.62 108.22 178.49 Pass-Major Risk W-31 -W-31A-W-31A 3,287.09 3,300.00 279.61 103.76 178.65 Pass-Major Risk W-32-W-32-W-32 3,846.47 3,850.00 170.63 126.20 46.16 Pass-Major Risk W-32-W-32A-W-32A 3,849.20 3,850.00 170.59 126.41 45.95 Pass-Major Risk W-32-W-32APB1 -W-32APB1 3,849.16 3,850.00 170.62 126.25 46.14 Pass-Major Risk W-56-W-56-W-56 3,088.95 3,150.00 530.89 44.24 489.06 Pass-Major Risk 5/11/2010 11:50:32AM Page 4 of 5 COMPASS 2003.16 Build 71 BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Reference Site: PB W Pad MD Reference: W-19B Plan D-14 @ 88.40ft(34.30KB+54.15GL D-14 F Site Error: 0.00ft North Reference: True Reference Well: W-19 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan W-19B Database: EDM.16-Anc Prod-WH24P Reference Design: W-19B Wp15 Offset TVD Reference: Offset Datum Reference Depths are relative to W-19B Plan D-14 @ 88.40ft Coordinates are relative to:W-19 Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927(Exact solution),Alaska Zone 04 Central Meridian is 150°0'0.000 W° Grid Convergence at Surface is:0.85° Ladder I I Piet I I - I 1600 1 Il 1 I I r•g 1 :if 1 I d► 4 1164 !a• ,, . -./ 4i 1 ,i it 1 i� , 1 I } 1 1 1 IF J,] ,1t:. I r/ I I , i: . : "J 1 ' . 1 1 Jl C I 1 1 I / I pf _ -...4.:...i 1 200 ,_ 4i., 4 °o J 1[rye ,• �+ l ; rsr� �i +. :�'.., C I .} 'fJ « 1' `� I . o _1 '1 sl li J L J �� I ' 1 ? r?� par. y4 1 I i II D_ 1 11 f (.0 Fri:. ��� 1 11 l N, 800 f :• �'4! fNolili 1 k 1 N I ;'�jr .l ��� I It•I k �. r r 'y 1 •,j 7 ► I 't I A' t U J •I� .' � • Ill j _ J_ +0 J f1•, _ J _ _ + ,: . �WA . 17e I �l a1 ,nr•w 400 f f 1 �to •::�itr �� {7 I i' 71 I .r;.:ir:i I 1 : ..� �_ I ;.i. .-' 1 I I I J _f_ yt-I _ _ __ J -`.i _ _ J_ _ __ _ _ _ J _ J I .,.-'i N D I I I I . i• I I I I - I I I I I 20 2,P Ian W-206 I. . • 1 . 11- 1 1 : ',1 ` Tif3':,.,. 1 • e 1- ? -? 1- / 202,Plan W-202 L1&Bc,PIan N6 W-202161TcVU - - W-M1 9A,W-19AV3 7500 10000 0000 W-?323,W-23 V5 15000 202,PbnW-202L20Ba,PbnN6W-202L209aVU - W-19,W-19 1 W-19AL W-23,W-23 A,W-23 AV8 213,Phn1N-219,PtanN4W-219 U9 1P91, -19,L1pPth(2500ftfin) $- W-19,W-19AL1P91,W-19AL1 B1 V3 W-23A_OMS,W-23A,W-23AV0 59. - -i 7 0,P Ian W-70,P Ian N 1 W-7 0 VU -4- W-20,W-20,W-20'v2 W-26,W-26,W-25 V2 r-15,W-15 V2 -I- W-2 00,W-20 0,W-20 0 V2 W-25,W-25A,W-25AVU r-1•A.W-15AV12 -s- W-200,W-200PB1,W-200PB1 V11 $ W-26,IN-26,W-26 V4 •-15PB1,W-15PB1 VB •-}E- W-201,W-201,W-201 V4 W-26,W-26A,W-26AV1 '-15P82,W-15PB2V2 r- W-204,W-204.W-204V2 W-27,PbnW-27B,PIanN1 V1 r-1 5,W-16 V4 -A- W-204,W-204L1,W-204L1 V6 --;y.- W-27,W-27,W-27 V4 r-1 SA,W-16AV4 W-2 04,W-20 4L2,W-2 04L2 V6 W-27,W-27A,W-27AV4 •-111APB1,W-16APB1 V2 -4- W-204,W-2204PB1,W-204PB1V2 -- W-29.W-29,W-2 9 V3 IN S.W-16,W-16 V0 W-21,Plan6.W-21AL1,Plan 6V0 W-30,W-30,W-30V2 IMS,'uU-16L1,W-16L1VU -s-- W-21,Plan 6,W-21AL1-01,PIan6VU --X-- W-31,W-31,W-31 V4 1 5/11/2010 11:50:32AM Page 5 of 5 COMPASS 2003.16 Build 71 0 us O ma m rn w m cm,' o e m 8 0 � 3',� �- �, a e Co Z 10{ d 2R ',:����=-_-_`�4b L ON0MNMM1°W ILIIn7t0 NA-O0N.- C 'EnN 5 / S� „� . 0 Ta: O 0 TN OWiOO L V O I W 1 Vo. a:y O O O tV OIn000lOCEp C10G� O ..Uemj ¢ m Z Ilargite _ "`-- l '�, C oom0000000,-00000000o L O aM �� ....000W0000W0000000 U N {0��ll Q«, •� '� J ON OO000I000000v000pp v0 c0op0_ Z C �.�•• C 3-3 4 >m--.m NOtDONI V V,.. N W 1ryp _E a .. . ° 1�OyN0t0 W N W ajoi4 r,:oi7N<W o pt0=J N _I or ,' ` ,0 ; W W�T "7*-7cs.".. V000vVY t 45 C CCp ;1� 111 I 0 cos W.mmIff-nmNW. t17r W.W 40�w N J�V , `-1 o�r WMED�TtDNWmMNmOIMr p - ,' ►� g �ooir aoonooio<ooiuiol:vooro ¢ 6 ii F +W 00110 NMm Wl∎000NtM•MWNOO, OW� , ,, 411 � '-:�a,�, � W NNMMWMMMmmmmmmmm` _ ,/ , U7 DOOf�A�<NNNtMO tMO tMO tMO�a^D�tWONVtWO Z ` _ _=�/ .I ' WMrn Mtt0OWNNNNNMA-�NMM 01 m , , .i-iii , I M M M W. W W W OI OI OI.OI W W W W W W ���, NNn1�1,0010NNON 000e-.-o■r vii ,,�ilr__, , ¢IOOOO,-�Noini 66.66, -e-IOW10100 om ((�y ,et/r,�--•I, = MMmm MVIMMMMMNNNMMMMM P. El-n %,r.4==�� E tI OINMMOOMOf0000WW00000 J 1y C NmOWOOTOl000001WOOmmO O. ° +° ' e ® 0 N d 0 m o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 j Z ° 1170 H ^ = W Ots. N�O1�W N W MA1..NMm.- m C 3 N C aG Oi tOVt7 fhatOK�1�G1�lV Ol Oi fV�C W M W OI m m OI m M W g m O M M m m Q U CU g -` °toMMI...n00_O__O'�W^NNNMMM < E Q >+ m +O U WA-NMO W W�W OfOFlO t•IQRSmF W Os W 0 ENU't,'' y c W cU m_a� O c (n N H W K 0 o 00000000000000000000 0 Q a 0 828282828282884 ' 2 `4224 0 .. =Q O d O 0 F t'I t'I v v N m t0 W r r Ds t0 C1 F ° .c a' m 11111111 1 1 Z 2In�1n2 rmmo L N M N N O O C C 01 N W W m V t uf.= in.-oiry U Z 10 W to W C O O O O o 0000000000000000 m. 000000000000 0 0000000 V N(�.hN 0 t0•I M O O 0 0 t00 tO O^ n m co 0) 0 0 m N N el M U n Z^rnnv LL H W O C J N _ Z_ 0030.0 Si 0 V t.. 01`41g4 , _ * 0 o ppo o o - - =�A111 i"al o C N O O M .Mill M ,,,, N OOMM 'CI �� \�:���I� it 1 •Iv044! I � CJ pj 4,, 1v�`Ativ u∎,.,!,r v. to �y \ ` � �gb d d \�. .� `� 11\? � �/% 'i.,w�/:. . ;. `. � vrlie 2 O ]I!!; 1 1'0 :iii%j'j V. J I,l/�� 1 l�/�, s } a 3333 4 °i°0 �/ I '-...7:_..,..--.-.,4 h. a x..3333 0 - si M / ftr. `- 'r�� N Ts 3 of w , ,I` fir U e m o 0 o w u u u $ 'm - di / F a e$o U c e5 c c L a . ``s /,Ip/I/'r — 'tom C °o W am>ao 3 ' J Aliss....•.,/,/id:111114 FL 4 R' I2pfn...jp - , , f' N O Or Om.O O N_ O0 OQl a ,t,'`,3g8.4ig j 1 t-;?,u 3 3 N 0-13-.0 vee r c •n to o o 3 A m 0 Alaska Department of Natural u esources Land Administration System Page 1 of/( Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources Alaska DNR Case Summary File Type: ADL File Number: 28263 Printable Case File Summary See Township,Range, Section and Acreage? ( New Search 0 Yes 0 No LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28263 !'44 Search for Status Plat Updates As of 05/20/2010 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/11/1965 Total Acres: 2560.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date: 10/06/2009 Case Subtype: NS NORTH SLOPE Last Transaction: CHNGTEXT CHANGE LEGAL TEXT Meridian: U Township: 011N Range: 012E Section: 15 Section Acres: 640 Search Plats Meridian: U Township: 011N Range: 012E Section: 16 Section Acres: 640 Meridian: U Township: 011N Range: 012E Section: 21 Section Acres: 640 Meridian: U Township: 011N Range: 012E Section: 22 Section Acres: 640 Legal Description 05-28-1965 *** SALE NOTICE LEGAL DESCRIPTION *** C14-59 T11N, R12E, UM 15, 16, 21, 22 2560.00 11-28-1969 SEGMENT 1 T 11N, R 12E, UM SECTION 15: 640 ACRES SECTION 16: 640 ACRES http://dnr.alaska.gov/projects/las/Case Summary.cfm?FileType=ADL&FileNumber=2826... 5/20/2010 Alaska Department of Natural u esources Land Administration System Page 1 of All Alaska Mapper Land Records/Status Plats Recorder's Search State Cabins Natural Resources [-- Alaska DNR Case Summary File Type: ADL File Number: 28262 Printable Case File Summary See Township, Range, Section and Acreage? ® Yes Q NO New Search LAS Menu I Case Abstract I Case Detail I Land Abstract File: ADL 28262 hiaP Search for Status Plat Updates As of 05/20/2010 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E. BENSON BL ATTN: LAND MANAGER- ALASKA ANCHORAGE AK 995196612 Case Type: 784 OIL&GAS LEASE COMP DNR Unit: 780 OIL AND GAS File Location: DOG DIV OIL AND GAS Case Status: 35 ISSUED Status Date: 08/26/1965 Total Acres: 2480.000 Date Initiated: 05/28/1965 Office of Primary Responsibility: DOG DIV OIL AND GAS Last Transaction Date: 05/04/2009 Case Subtype: NS NORTH SLOPE Last Transaction: CHNGTEXT CHANGE LEGAL TEXT Meridian: U Township: 011N Range: 012E Section: 17 Section Acres: 640 Search Plats Meridian: U Township: 011N Range: 012E Section: 18 Section Acres: 599 Meridian: U Township: 011N Range: 012E Section: 19 Section Acres: 601 Meridian: U Township: 011N Range: 012E Section: 20 Section Acres: 640 Legal Description 05-28-1965 *** SALE NOTICE LEGAL DESCRIPTION *** C14- 58 T11N, R12E, UM 17, 18, 19, 20 2,480.00 12-04-1969 *** ASSIGNMENT LEGAL DESCRIPTION *** SEGMENT 1 T11N, R12E, UM SECTION 17: 640 ACRES SECTION 18: 599 ACRES SECTION 19: 601 ACRES http://dnr.alaska.gov/projects/las/Case Summary.cfml?FileType=ADL&FileNumber=2826... 5/20/2010 TRANSMITTAL LETTER CHECKLIST WELL NAME , ? *' ,�i1�og rg PTD# aA006.5 ,/ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: /-....9,e/4,4/Ds" Xvy POOL: ,7:),e./Z4//06- any Q/i Circle Appropriate Letter/Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(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 through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev: 1/11/2008 TO (.6 CO 0 a) n N .N a) ❑ O @ — 7 N C Q C O a) 0 > L w ❑ O -o 7 E O m °) a co a 2 ai ,° a .) eo r (°n � 3 a)• co a O = O _N co - 'O. N _ O a) L '° m ❑ ° 0 A- m @ a a N co co ai a) n O N F- m °' o 3 a) = 0 co 'a p CO C Z 0) N O 3 N 0 a3 ° E 3 U a a >-m Q �' °) . -° m 0. 0 CO CO O ° n E 0 O m N a) (h c C o N 3 pO rn rn c a) ) w) M o ° c II > (Y W C j - E N N a) C N > cn CO > N a) L O) N T 7 E C a co co C N U C n V U) 0 N "U) 0 a) xs m CO () `m 3 ' >, a) a a -o co c c co m N QO N .N .N U = N O C a CO) a N E a) O (0 N c -° n M a3 W 2 co m 0 U U O a) a T "° . N > N Z m a> c o o , 0 a E o o a o a>> a) ❑ co co °c 'tt 't o f CD L o a) m Q N m w'I cL6„ m U co cn a U w M a 2 2 I 2 a uJ q ❑ U) N N CO CO U) U) N N N N N N CO N CO N CO N N N N N 1 Q a) a) a) a) a) a) Cl) a) a) a) Cl) a) Q Q Q Q Q Q Q Q a) Cl) a) a) a) Q a) Cl) a) a) a) a) Q o Q Q Q Q az >- >- >- >- >- >- >- >- >- >- >- >- zzz z z z z z >- >- >- >- >- z >- >- >- >- >- >- z z z z z z T N IiN a(73 m E— N n N C � � C w O co 1 °' C >+ o 2° `.L' E 3 0 '0- a N U T 01 O O C C O o a O @ J 0 '� m ❑^ E o Z N a voi N Q 0, o a) E a Q "c j C O N N ° o_ N OU N x •.a... C .7 N (6 7 .1).. Q 7 ° T 7 °> Q c -0 N N ❑ ❑ .D a) a .L> "O Q N N `O c a) O V w (6 N 'C fy .c co o m -o w v us ° N m ca N a) E o a n CD 7 ' C N a T N lv > C }, 0 > a7 O N O O N N N N C o = O_ 3 tY -OO N co \ Q U C a) 7 a) a) @ T a=.. lri ❑ O ° u3 E ate) a '3 o co 'O° O 7 (A N N (n c O) N C Q N O) w Z 0 O 0 O a) C -° O N a _. D OU C N m ° 0. O1 N N a N C C a) C O` a) 0 Q E E - "° C C E r @ N O co c c N c• F -C O N ad a) a C a) w m a N L n C Y O O 'd 7 "� O N O C Q 30 O O 0 U :.=.0_ n C U O N a ° 1] '3 °i > N N T O Q o N a> c • >, 0 c c ° -° CO m ° Y o o o ° ns 0 E f° m m Q i0 N a o o> o m c.N rY J E a ° ° a) o o O c - a Z o E 7 3 a) o a) .c m 3 _ a) E a Q (0 c a@ co a a a ° s t -, ° a -o E a°) @ ` c c a) N M .N = o N o n 3 0 c o T 3 m E o Z a) N N - m 3 3 m a m , w '� 2 3 m a) O a o °i> a °) co o 3 �> co a> o W ° a -o c o w -o > o > U o T v a) o n a 3@ o -c 2 U ao O o c `0 -o > o a) .Q -° P ° co 'E o c o a) o o c s a N -° c O Q1 c ID a m = a), I ° n as m a`) a> m ri ° > > a c 0 o a Y a> o E o E r o c N 0 I Q n a) -° n n ° O O. N N n L V O U a ° — �, O) m N N E. m 0 .3 N N CO o w CO o o m 3 m caa u @ m m rn > > co N Y N o m m o x 0 -oa .N o a T.) O C n a aJ co T N 3 L O C C N N > C L n N ° U ° ° 0 O T ° E n- aa)i E a) a°i ate) Cl) 0 0 co C C a) Cl) C N 0 -o O o .co N m — 3 2 -° U c C c E O N C N C I"' w 'c 3 U U c(0) c o `o o 0 3 E 3 ) p 'c o m o ca ca o ° -° m -o m a) w n E o aci c c o O a c t!1 a a) c o 0 0 ->° m m _" a —° a ° o' c°0 > > 3 C a d) Q a) c_> w w Y x Cl) r ° E m ai Y °° 443 a88 .E Cl) a) a> 3 -0 0_ n a`) a`> co ..) 3 m 0 0 a 2 2 2 m -0 co o 'o O O .0 o w aa) a`) co T.) aa)) 0 m V @aJx5 � 5cn ooaaOS <O_ Z Ou) 0c� 00 < < ommc� � 2 a ❑ cous0 ° W a O - N M V U) (0 r W °) O N C) V (I) (O 1- cD O) O N C) V (O (O f- W Q) X N co V (17 co h co °) N N N N N N N N N N M M M M M M M M M M U O O O a) O N O d 0 OD C c CI N N N U re I1) 0 0 0 A- D RS O m•, W O 0 N C N N O N d O a" co .` (f) O E N m T O Eo -.1'. ❑ Q' (n Q J O Q (n U 3aa a a w`co a � c� Qa
