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210-066
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 19BL1 PB1 50-029-22006-73-00 210-066 T39210 1-18-1011 STATE OF ALASKA RECEIVED �LASKA OIL AND GAS CONSERVATION COMMI REPORT OF SUNDRY WELL OPERATI 1. Operations Performed ��(��/ (� C '(� Abandon 0 Plug Perforations 0 Fracture Stimulate 0 Pull Tubing ❑ Op�IQi LsQh4tdoZQ1+ ❑ Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program 0 Plug for RedriII 0 Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 OtA 0i•',�-, rt-.i-eve 0 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-066 3. Address: P.O.Box 196612 Anchorage, Development H Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-22006-61-00 7. Property Designation(Lease Number): ADL 028263&028262 8. Well Name and Number: PBU W-19BL1 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 14701 feet Plugs measured None feet true vertical 9068 feet Junk measured None feet Effective Depth: measured 14599 feet Packer measured 10359 feet true vertical 9034 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 3090/4760 Liner 232 7-5/8" 10379-10611 8665-8847 8180 5120 Liner 4065 4-1/2" 10618-14683 8852-9321 8430 7500 Perforation Depth: Measured depth: 12440-14560 feet True vertical depth: 8977-9022 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): SCANNED OEC 2 Treatment descriptions including volumes used and final pressure: 2U17, 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 0 0 0 0 0 - Subsequent to operation: 0 0 0 0 0 14.Attachments:(required per 20 nnc 25.070.25.071,8 25.283) 15.Well Class after work: Daily Report of Well Operations ❑ Exploratory 0 Development El Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil IO Gas ❑ WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG 0 GINJ 0 SUSP 0 SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Authorized Name: Peru,Cale Contact Name: Peru,Cale Authorized Title: Petroleum En ineer Contact Email: Cale.Peru(rD_bp.com Authorized Signature: Date: /0/3///7 Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 ZV 7/ n'"" B Z.: ^ L/?`°" °7 Submit Original Only • .04 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-19BL1 PTD #210-066, 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-19BL1 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= 4-1/16"FMC VVELLfEAD= 13-5/8"FMC • VV-19 B9NOTES:B N L CHROME WL. ELL JUNCTIONS 70 @ 12921 '. ACTUATOR= BAKER C L 1 OKB.REV= 90.5' TUBING*** BF.B-EV= 54.15' I KOP=, 1510' Mix Angle= 980 @ 11729' 20"COND H ? I L' L 2209' —14-1/2"FES XMP,D=3.813" Datum NO= 10667' GAS LFT MANDRELS Datum TVD= 8800'SS ST MD TVD DEV TYPE VLV LATCH PORT DATE 8 2695 2690 0 MIG DMY RK 0 10/12/10 13-3/8"CSG,68#,L-80,ID=12.415" —{ 2698' 7 3520 3496 18 MIG DOME RK 16 03/25/12 6 5424 4980 43 MuIG DMI' RK 0 10/12/10 9-5/8"CSG,40#,L-80 HYD 563 XO TO L-80 BTC H 8623' >< 5 6535 5790 42 MIG DOME RK 16 03/25/12 4 7401 6431 41 MAG DFM RK 0 10/12/10 Minimum ID =3.688" @ 10618' 3 8014 6885 41 WOG DMt' RK 0 10/12/10 BKR HOOK ANCHOR w/L1 SEALING LEM 2 9088 7679 43 MAG DOME RK 16 03/25/12 I 1 10200 8524 38 MMG SO RK 22 06/28/15 9-5/8"CSG,40#,L-80 BTC,D=8.835" H 10336' H 1 10320' H 4-1/2"I t X NP,D=3.813" NO'411 ><,\ 9-5/8"X 7-5/8"ZXP LTP w/TEBK,ID=6.75" —I 10379' ilk10350' H 9-5/8"X 4-1/2"PREM PKR ID=3.870" 9-5/8"X 7-5/8"FLEX-LOCK LNR HGR ID=6.940" —I 10401' ' 10485' H4-112"HES X NP,D=3.813" 9-5/8"CSG,47#,L-80 BTC-M.D=8.681" — 10530' , ' 10556' H4-1/2"HES X NP,D=3.813" 4-1/2"TBG,12.6#,13CR-80 VAM TOP, H 1056W 10563' H7-5/Ir X 5-1/7 BKR FRD ZXP LW,D=4.880" .0152 )=3.958" 8 10668' 4-1/2"VSA.FG,D=3 958" 4-1/2"BKR PKR w/20'X 2-7/8"PERFORATED — 10604' PPE SCREEN(09/08/17) ------------ D-- 10583' H5-1/2"X 4-1/2"XO, =3.958" 000000 BAKER HOOK HANGER — 10618' 000000\ MI ® ® L1 LEM WINDOW 37' w/L1SEALNGLEM,D=3.688" 000000 4 1os1r- 10621'W-19BL1 � t--._ 1,2 �. OPENING WIDTH=3.33" PBTD —I 14599' /// H l 4-1/7 LNR 12.6#,13CR-85 VAM TOP, — 14683' 7-5/8"CSG,29.7#,S-95 STL,.0459 bpf,DH=6.875" 10692' I\ .0152 bpf,D=3.958" 5-1/2"RA TAG,D=4.892" H 10693' 1--0 \ 5-1/2"LM, 17#,13CR-80 VAM TOP, —� 10741' 10693' H7-5/8"X 5-1/2"XO,D=4.810" 0232 bpf,ID=4.892" 4-1/2"TBG, 12.6#,13CR-80 VAM TOP, —I 10750' �� .0152 bpf,D=3.958" 10760' --I5-1/2"X 4-1/2"XO,D=3.958" F1FORATION SUMMARY IE 83 REF LOG:SLB LWD VARIOUS DA I ES ANGLE AT TOP PERE:PYA cg Sr m ? —FISH:LOWER 6.5'OF LEM SCREEN NCLUDNG 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) SIZE SPF INTERVAL Opn/Sqz DATE SEE PAGE 2 FOR PERFORATION DATA IS s3 E E7 lir''; 4-1/2"LNR 12.6#,13CR 85 VAM TOP, H 13716' .0152 bpf,ID=3.958" -4," -♦ FBTD H 13630' DATE REV BY COMMENTS DATE REV BY COM ENTS FRUDHOE 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 FCR/ISO SLV ASSEM3LY PERMT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19AL1) 07/28/15 RJKIJMD 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 JUJFnD CORRECTED 13-3/8"CSG WT SEC 21,T11N,R12E 696'ENL&1181'FEL 09/06/12 ANYJND RLL ISO SLV(09/02112) 10/17/17 RB/JIVD RESET HPE SCREEN(9/8/17) 09/06/12 AMJMD SLOT!EU&P PLUG(9/2/13) BP Exploration(Alaska) • W-19B • L1 i . 1I, x I x Ill 1 x x X ' 1 1 1 1 10655' H 4-1/2"BKR SWELL PKR,13=3.958 10718' --14-1/2"BKR PAY ZONE ECP ELI3VENT,ID=3.958 10803' RI4-1/2"BKR SWELL PKR,13=3.958 000000 000000 ma MI 131 GO as rsa 000000 W_19BL1 000000-, PERFORATION SUMMARY LW MI U REF LOG:SLB LWD VARIOUS DATES ANGLE AT TOP PERF:N/A 4-1/2"BKR SWELL H I 12312' Note:Refer to Production DB for historical perf data FKR,ID=3.958 SIZE SPF 11TH2VAL Opn/Sqz DATE IL 4-1/2"BKR SWELL —{ 12925' W-19B 2-7/8" 4 12490-12540 C 08/30/13 PKR,ID=3.958 2-7/8" 4 12560- 12640 C 08/30/13 2-7/8" 4 12790-12920 C 08/30/13 4-1/2"BKR SWEl I_ --- 12998' 2-7/8" 4 12955-13320 C 08/30/13 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 l$ S� 10812' -4-1/2"BKR SWELL PKR,ID=3.958 W-19BL1 cg iri11192' 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 2-718" 4 13120-13770 0 09/26/10 t$ ice— 11673' -4-1/2"BKR SVVEI_L PKR,ID=3.958 2-7/8" 4 13820-14290 0 09/26/10 2-7/8" 4 14340-14460 0 09/26/10 IS 21--1 12063' R4-1/2"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 .. 23-1 12228' H 4-112"BKR SVVa L PKR,ID=3.958 ► 4 .1 DATE REV BY COMENTS DATE REV BY COMETS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION 04/30/13 GJF/PJC PULL ISO SLV(04/26/13) VVaL: W-19B I L1 12/25/98 SIDETRACK(W-19A) 08/30/13 LECIPJC KB FKR/ISO SLV ASSEM3LY PERMT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19AL1) 07/28/15 RJK/JMD GLV C/O(06/28/15) AR No: 50-029-22006-02(61) li 10/14110 D-14 SIDETRACK W-1981 BL1 01/04/16 JL/JMD CORRECTED 13-3/8"CSG WT SEC 21,T11N,R12E,696'FNL&1181'FEL 09/06/12 AM/JMD PULL ISO SLV(09/02/12) 10/17/17 RB/JMD RESET RPE SCREEN(918/17) 09/06/12 AM/A13 SLO I!ED&P PLUG(9/2/13) BP Exploration(Alaska) • W-19B • L1 i . X L X x x 5Z R 1 1 I 1 1 10655' H4-1/2"BKR SWELL PKR,ID=3.958 10718' —{4-1/2"BKR PAYZONE ECP ELBvIENF,ID=3.958 000000 10803° —+4-1/2"BKR SWELL PKR,D=3.958 000000 sa aa La sa tsa 10 000000 W-19BL1 .; f'Q-J-ORATION SUMMARY — r' ® C e9 REF LOG:SLB LVVD VARIOUS DA IES ANGLE AT TOP PERF:N/A 4-1/2"BKR SWB._L H 12312' Note:Refer to Production DB for historical pert data PKR,ID=3.958 SIZE SPF kNITERVAL Opn/Sqz DATE 4-112"BKR Mal H 12925' W-19B 2-7/8" 4 12490-12540 0 08/30/13 PKR,ID=3.958 2-7/8" 4 12560-12640 0 08/30/13 4-1/2"BKR SWELL —I 12998' 2-7/8" 4 12790-12920 0 08/30/13 2-7/8" 4 12955-13320 0 08/30/13 _ PKR,®=3.958 2-7/8" 4 13350-13510 0 08/30/13 *c 7 2-718" 4 13564-13574 O 08/30/13 2-7/8" 4 13620-13630 O 08/30/13 Tg 10812' H4-1/2"BKR SWELL PKR,ID=3.958 W-19BL1 lg Ilk Er-1 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 E XI 11673' —14-1/2"BKR SWELL PKR,NJ=3.958 2-7/8" 4 13120-13770 0 09/26/10 2-7/8" 4 13820-14290 0 09/26/10 g g I 12063' H4-1/2"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 19B 2-7/8" 4 14550-14570 0 09/26/10 I.:1 � 1 12228' ---14-1/2"BKR SWELL PKR,D=3.958 DATE REV BY (OATS 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 PKR/ISO SLV ASSEMBLY 1U NUT No: 2100650/60 03/08/03 DAC/TLH SIDETRACK(W-19AL1) 07/28/15 RIK/JWJ GLV C/O(06/28/15) AR No: 50-029-22006-02(61) 10/14/10 D-14 SIDETRACK(W-19B1 BL1) 01/04/16 JUJPU CORRECTED 13-3/8"CSG WT SEC21,T11N,R12E,696'FNL&1181'FEL 09/06/12 AM'JMD FULL ISO SLV(09/02/12) 10/17/17 RB/JMD RESET PPE SCREEN(9/8/17) 09/06/12 AM/JTvO SLO I IED&P PLUG(9/2/13) BP Exploration(Alaska) STATE OF ALASKA • 0LASKA OIL AND GAS CONSERVATION COMMI REPORT OF SUNDRY WELL OPERATI 1. Operations Performed Abandon ❑ Plug Perforations 0 Fracture Stimulate 0 Pull Tubing ❑ Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program ❑ Plug for Redrill ❑ Perforate New Pool 0 Repair Well 0 Re-enter Susp Well 0 Other:Open Lateral Leg 10 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 210-066 3. Address: P.O.Box 196612 Anchorage, Development m Exploratory 0 AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-22006-61-00 7. Property Designation(Lease Number): ADL 0028263 8. Well Name and Number: W-19BL1 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 14701 feet Plugs measured feet RECEIVED true vertical 9068 feet Junk measured feet Effective Depth: measured 14599 feet Packer measured 10359 feet MAY 3 0 2017 true vertical 9034 feet Packer true vertical 8648.58 feet AC 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: 12440-12860 feet 12900-12920 feet 13110-13760 feet 13810-14280 feet 14330-14450 feet 14480-14500 feet 14540-14560 feet True vertical depth: 8977-8918 feet feet 8912-8910 feet 8911-8928 feet 8929-8948 feet 8955-8987 feet 8996-9003 feet 9015-9022 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 ._!..1!\I 0 1 i2 a 1 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:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations 13 Exploratory 0 Development II Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL 0 Printed and Electronic Fracture Stimulation Data 0 GSTOR 0 WINJ 0 WAG 0 GINJ 0 SUSP ❑ 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 Engineer I�f Contact Email: Cale.Peru@bp.com Authorized Signature: (071 Date: 5/35// / Contact Phone: +1 9075644522 Form 10-404 Revised 04/2017 Vr/ 5731/17-- s f/va7 RBDMS �V MAY 3 1 201,Submit Original Only RE Ely ED MAY 3 0 2017 AOGCC 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 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-19BL1, PTD # 210-066. 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 • • . . . . . . . m O O (O CV 0 0 0 N O i� LO In LC) O N M Ln N- N- I- 0 y 0 0 0 0 ) 0 0 iN Lf) f> 00 M M M 7 O f- M r m L0Ln (O 00 00 00 00 O O N O 0o co o0 d V (fl N `- CO CO CO CO O 00 N CO CO CO CO 0) CO ▪ 1 1 1 i i l l l N CO O NY O CO CO CO CO r LO CO CO CO CD CO CO CO M CO CO 00 CO 41 00 N r r Lf) N- 0) 00 CO CO r a- CO N- E = M U) CO (O CO tf) '- O .000 ,0 .1- (0 N r r r r r r • T 1 1 1 1 I I 1 I 471CO 0O LC) O Q) O co (fl CO CO CO N v M M M co co in (O (.0 MT— OOOO • 1 r r r r I- MO O O Y.1 ,_ C010Lo cc cc cc a 0000000 , UUU 8) 0 J J J W M M M gi20 r r r Cl) O O V m (O O CV N (V N V bo 0 - r r M 00 O LC) LC) N CV N N MM . = = = ! lili W W < < - - c1— w00 U o LL W W . a Z Z Q W W W W W m O D H H Z_ Z Z_ D O (n Z J J J I— • • Packers and SSV's Attachment PBU W-19BL1 SW Name Type MD TVD Depscription W-19BL1 TBG PACKER 10358.89 8648.58 4-1/2" Baker Premier Packer W-19BL1 PACKER 10390.72 8673.78 7-5/8" Baker ZXP Top Packer W-19BL1 PACKER 10576.03 8819.1 5-1/2" BAKER ZXP PACKER W-19BL1 PACKER 10657.25 8883.59 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 10720.46 8932.05 4-1/2" Baker ECP Packer W-19BL1 PACKER 10804.68 8987.34 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 10813.76 8992.51 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 11193.79 9046.7 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 11675.4 9025.72 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 12064.7 9001.38 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 12230.2 8988.46 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 12314.41 8982.31 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 12927.19 8909.54 4-1/2" HT K2 Swell Packer W-19BL1 PACKER 12999.95 8907.97 4-1/2" HT K2 Swell Packer • • 3 r m w >, L() fm ai > a) r C) (1) c W U oOQ - � H 0 a) J 60L4r -I m 0 0 > 0 ° O �\.0 rnQ ca m O O (/) (6 N > V (Z c p6 N - a E 'n U a) ca a) I- C N c c) U o a) O Q) Q L 00 ' cQ -o (n E W O 0 a) II p r _ a) O CO u) Q c > J O J .0 : U ,� 4- V) 2 i- .Q 7 CO Q Q O a3 U Oc _ U N a) c. c _p 2 (Z a 2 ami o a) > cn m a w J U) o O "i-1) COM _ J t sz,•_, .0(n 1 N N U r Q N a) 0 p c U _ cl) c a CO p a) I- a) (n a c a) >> a c _c U c a N •C -o a) r co Q co Q _ a) O > Q O c .S a a) (o (n o N °tS o Q U CU > x a Q a > E co rn E a) a) cu ,- lila) Wth c 2 r I- a) 0 u) H J . 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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 Q - Q ‘Q, Well History File Identifier Organizing(done) ❑ Two-sided III iIIIII IIII ❑ Rescan Needed 1 1111111 11111 12SCAN 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: Maria Date: f /5 / /s/ e Project Proofing 111111111111111 g BY: Maria ) Date: ` /s i if /s/ rfl P Scanning Preparation 7 x 30 = a to + = TOTAL PAGES a.1 (Count does not include cover sheet) 61 BY: CM-aria, .) Date: ' /S /s/ Production Scanning 11111111110 11111 Stage 1 Page Count from Scanned File: Qao (Count does include cover sheet) Page Count Matches Number in Scanning Preparation: 1/ YES NO BY: dra. Date: I /31 I11- /s/ pie 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. 11111111E 11 III ReScanned IM 11111111111 11111 BY: Maria Date: /s/ Comments about this file: Quality Checked III DLII III IIII III 12/22/2011 Well History File Cover Paae.doc ° c CO ° m - 0 M S S C. co co o i ° 0 W w 0 0 (4 z • 0 ,- 0 0 N O ac) as LL- > Oz dz �0 �0 Z m o U cn u)0a m 0° °p m� ms E. U) c = _JIXre a < -< aw 0-IA o v d r O o > • d .° 0 0 0 0 0 0 0 J y O N N N N N N N Q O ix co 00 CO CO CO OO CO J _ _ _ _ _ ..- Z • j E — c c c c c c c E w 0 0) 0) 0) 0) 0) a) To" c 00 a a s a a a u) c OU 0°- O 0 0 0 0 0 o Ce Q ", U O Z o C r CO 0 0 CO d N z z 0. 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N o O .a> N a N U CD J J m Qcn H ._ I o E N Q m m o I 11 0 0 o 0 a a o . a> C Ti. Q E o G E " PO tv z 'm O cn W m o d o N y d' D 2 V C a 0 �I o a 2 0 I WELL LOG TRANSMITTAL To: State of Alaska January 17, 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 L1+L1PB1 AK-MW-0007409877 W-19BL1 50-029-22006-61 2"x 5" MD Triple Combo Logs: 1 Color Log 2"x 5" TVD Triple Combo Logs: 1 Color Log W-19BL1PB1 50-029-22006-73 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. Anchorage,Alaska 99518 Office: 907-273-3536 3, r a " • ids on.com 8 20I Date: pp Signed: AW Oil y+ Gas '�9 C trnE aon �a �r� it ! STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1 a. Well Status: ®Oil ❑Gas ❑SPLUG ❑Other ❑Abandoned ❑Suspended lb. Well Class: 20MC 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 210-066 3. Address: 6.Date Spudded: 13. API Number: 4t, ,'.-' -i P.O. Box 196612,Anchorage,Alaska 99519-6612 9/10/2010 50-029-220062-00 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number. Surface: 9/23/2010 PBU W-19BL1 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: 3677'FSL,3146'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 2628'FSL,284'FEL, SEC. 16,T11 N, R12E, UM 14599' 9034' 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 14701' 9068' ADL 028263 TPI: x- 610009 y- 5963904 Zone- ASP4 11.SSSV Depth(MD+TVD): 17. Land Use Permit: Total Depth:x- 612889 y- 5962898 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 MDITVD: MWD, GR, RES, PWD, USIT, SCMT,MAD Pass 10619' 8853' 23. CASING,LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT.PER FT. GRADE TOP 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 Class'G' 7-58•:5-1/?x4-1/2" 29.7$117#112.8# L-80/13Cr 80/85 10379' 10619' 8665' 8853' 8-12"X6-1/8" 525 cu ft Class'G' 4-1/2" 12.6# 13Cr85 10618' 14683' 8852' 9062' 6-1/8" 578 cu ft Class'G' ✓ 24. Open to production or injection? ®Yes ❑No 25. TUBING RECORD If Yes,list each interval open (MD+TVD of Top&Bottom;Perforation Size and Number): SIZE DEPTH SET(MD) PACKER SET(MD/ND) 2-7/8"Gun Diameter,4 SPF 4-1/2", 12.6#, 13Cr80 10568' 10350'/8642' MD TVD MD ND 12450'-12870' 8956'-8926' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 12910'-12930' 8923'-8921' r e: !,°I.�t Zki 13120'-13770' 8915'-9029' 1 r)' DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 13820'-14290' 9045'-9195' i`' 1iI01 Freeze Protected with 160 Bbls of Diesel 14340'-14460' 9211'-9249' I } N0 - _ 14490'-14510' 9258'-9265' 14550'-14570' 9278'-9284' 1 ., i-n 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(CORR): Press. 260 1140 24-Hour Rate♦ 2408 1524 314 28. CORE DATA Conventional Core(s)Acquired? ❑Yes IN 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,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. "7 P IVED None LLt> 2 0 2010 RBDMS DEC 2'2 201io? Form 10-407 Revised 12/2009 6NTINUED ON REVERSE cons.Co /4- . • �11,� •�.�/Qriginal al Only 29. GEOLOGIC MARKERS(List all formations and m4 ,s encountered): 30. .RMATION TESTS NAME MD TVD Well Tested? ❑Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Top Eileen 10678' 8900' None Top Ivishak Zone 4 10684' 8904' Ivishak Zone 4 14701' 9326' Formation at Total Depth(Name): Ivishak Zone 4 10684' 8904' 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. Signed: Sondr. tewman - Title: Drilling Technologist Date: ' 1 PBU W-19BL1 210-066 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 1 a: 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 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 12/2009 Submit Original Only WELLHEAD VV-19B WELLHEAD= SAFE] JTES: ALL CHROME LJNER's, JUNCTION,&COMPLETION ACTUATOR= KB.ELEV= 80 25' DRLG DRAFT B L 1 BF.EIEV= 54.15' KOP= 2800' Max Angle= 101 deg Datum MD= I Datum TVD 8800'SS 2209' 1-14-1/2"HES X NIP,ID=3.813" I 13-3/8"CSG,72#,L-80,ID=12.415" I-I 2698' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH FORT DATE 8 2695 2690 0 MMG DMY RK 0 10/12/10 9-5/8"CSG,40#,L-80,HY D 563,ID=8.835" --I 8523' I 7 3520 3496 18 MMG DOME RKP 16 10/20/10 4-1/2"HES X NIP, ID=3.813" I- 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"x9-5/8"BKR PREMIER PKR H 10,350' I \ — 4 7401 6431 41 MMG DMY RK 0 10/12/10 I4-1/2"HES X NIP, ID=3.813" I-- 10485' \Z ' 3 8014 6885 41 MMG DMY RK 0 10/12/10 2 9088 7679 43 MMG DMY RK 0 10/12/10 14-1/2"HES X NIP,1D=3.813" H I 10556" 1 10200 8524 38 MMG DMY RK 0 10/12/10 9-518"CSG,40#,L-80,BTC,ID=8.835" —{ 10336' 10,563' I—17 5/8"X 5-1/2"BKR ZXP LTP,ID=3.875" I ►/ C 9-5/8"X 7-5/8"Baker ZXP Liner Top Packer 10,378.72' '■ 10,610.53'I_ITo L1 LEM Window (10'long,3.25"ID) I 9-5/8"x7-5/8"FLEXLOCK LH H 10401' I ' 1' 10611' I_1 3.675'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' [D ; MILLOUTWINDOW 10619-10637 BKR HOOK w/SEALING LEM `• ''0 14,683'_14-1/2"LNR, 12.6#,13CR,VT,ID=3.958" I 7-5/8"LNR,29.7#,L-80,STL,ID=6.875" —.I 10692' 0 4i, � • 'RA Tag I 10,693.06' I\ A.` �rAr 5-1/2" 13CR 17ppf,VT,ID=4.767"Drift H 10,693.06' No 4* 5-1/2"X 4-1/2"SBR, ID=4.767"Drift--) 10740.7' •r•/ 5-1/2"X 4-1/2"XO,ID= 3.958'-110,759.61 4.5"Sw ell Pkr 13CR VT,ID=3.958" —I 10812' 14,599' —I PBTD L-1 I 10,655' 4L-1 4.5"Swell Pkr 13CR,ID=3.958" I 4.5"Sw ell Pkr 13CR VT,ID=3.958" —I 11192' 10,718' _14.5"ECP Pkr 13CR VT,ID=3.958" I PERFORATION SUMMA RY 10,803' L-1 4.5"Sw ell Fkr 13CR,ID=3.958" I REF LOG: TGP PERF 12,312' 4 L-1 4.5"Sw ell Pkr 13CR,ID=3.958" I ANGLE AT TOP PERF: @ N/A 12,925' _I L-1 4.5"Sw ell Pkr 13CR,ID=3.958" I Note'Refer to Production DB for historical pert data P,■ 0 12,998' 4 L-1 4.5"Sw ell Pkr 13CR,ID=3.958" I SIZE SPF INTERVAL Opn/Sqz DATE 2.88" 4 B-13620-13630 0 09/01/10 11673.31' _44.5"Sw ell Pkr 13CR VT,ID=3.958" 2.88" 4 B-13564-13574 0 09/01/10 0 i► 12062.61' 44.5"Sw ell Pkr 13CR VT,ID=3.958" I 2.88" 4 8-13350-13510 0 09/01/10 `r mi. 2.88" 4 B-12955-13320 0 09/01/10 2.88" 4 B-12790-12920 0 09/01/10 4'; 2.88" 4 B-12560-12640 0 09/01/10 :ii' Ak. 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 09/26/10 144*2.88" 4 L1-14340-14640 0 09/26/10 2.88" 4 L1-13820-14290 0 09/26/10 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 I 2.88" 4 L1-12450- 287D 0 09/26110 4-1/2"LNR, 12.6#, 13CR,VAM TOP,.0152 bpf,ID=3.958" I--f 13716' I DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 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 I 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 BERING 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 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 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/4.5"12.6#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 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 I 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' 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 PIC AT 2,975' RU EZSV TO E-LINE 19:30 - 20:30 1.00 PULL P DECOMP PRE-JOB SAFETY MEETING RIH W/EZSV ON WIRELINE&SET PLUG WITH TOP • 2,850' 20:30 - 21:30 1.00 PULL P DECOMP POOH FROM 2,850'TO SURFACE WITH RUNNING TOOL LD SLB TOOLS 21:30 - 22:30 1.00 PULL P DECOMP RU&TEST EZSV TO 2,500 PSI FOR 10 MIN -TEST LOST O PSI IN 10 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 9-5/8"CASING AT 2,743' Printed 12/17/2010 2:20:19PM Page 4 of 37 North America ALASKA- BP 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'TVD 05:15 - 05:30 0.25 PULL P DECOMP POSITION CUTTERS AND MAKE SECOND CUT AT 2,635' -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 o 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 &T 9-5/8"CASING RAMS -2 250 PSI SI 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 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 FO CHECK WELL N FLOW 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 8-1/2"TAPERED MILL 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 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) 12:30 - 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 UP ON 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 Hrs 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 AND CLEAR RIG FLOOR MAKE 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 -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: X3-00V1Z-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 - 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 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 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, 0-1 K 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 North America-ALASKA- BP Page 12 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) 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 PSUMIN -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"HWDPX6 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 TQ FIRE DRILL 09:30 - 11:00 1.50 CLEAN P ■ WEXIT SLIP AND CUT DRILLING LINE SERVICE TOP DRIVE,BLOCKS,AND ADJUST BRAKES 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 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'TO 4,796' 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 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) 8/3/2010 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 T04800 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 15-35K WOB -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 -8-15KWOB -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 133/8"SHOE @ 2,698'. FILLING EVERY 20 STANDS. 04:00 - 05:00 1.00 DRILL N DFAL INT1 CBU650 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 DIRECTIONAL DRILL AHEAD FROM 9,415'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-7,535'.NO PROBLEMS. ***D-1 DRILL***,AAR AFTER 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) 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, 10 RPM,85 AM, 4200 PSI.CBU 2X TIL CLEAN.STAND D 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) 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 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'TO 7,100'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 9 5/8"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 r._ 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 RECIPROCATION AS FOLLOWS: 01:07PUMP 5 BBL OF 11.2 PPG MUDPUSH AT 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 AT 5-6.5 BPM -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 5:100BSERVED 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 CEMENT IN PLACE AT 05:12 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 PRESSURE TEST 9-5/8"CASING -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 FORA 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. 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 LEBLANC&ZACH SAYERS,DOYON TP NICK 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 _-®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'TO4,323'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 1120 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 PERFORM FIT -TOTAL STROKES-33 -APPLIED SURFACE PRESSURE-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) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 23:30 7.50 DRILL P PROD1 DRILL FROM 10,560'TO 10,780'MD -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 CIRCULATE DRY JOB BLOW DOWN TOP DRIVE POOH FROM 9,481'TO 3,912'MD -ON ELAVATORS -5"DP CHANGE HANDLING EQUIPMENTTO4" 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 --RIH 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' TVD) -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 OUT AT DRILLING LI G RATE(2 -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 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 - 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 PU XO AND 1 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' ND) -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 FIRS,ART-3.50 HRS,ADT-7.04 FIRS 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 ST 1 LCM PILL -32 BBL PILL THROUROUGH H 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 TO 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 BBU 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 60-100 BBU 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 DRILL FROM 12,503'TO 12,516'MD 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 BBU 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 BBU 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 BBU 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 TO -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 Firs 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 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"HWDP X2 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 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' TVD) -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 TQON -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 ROPE 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 @86.87 ft(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 -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 -5KWOB -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"TO4" 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 DIRECTIONALLY DRILL FROM 13,584'MD TO 13,720' -PUW 260K;SOW 180K;ROT 216K -325 GPM,2,400 PSI ON,2,020 PSI OFF -60 RPM;8K TQ OFF;14K TQ ON -15K WOB -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,6K TQ -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,TQ6K 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 FROM 10,530' -61 -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' TO 400' 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 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) 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 RUNPRD RUN 4-1/2"12.6#,13CR VAM TOP LINER FROM SURFACE TO 2,946'MD SWELL PACKER PLACEMENT TOPS: -1 12,236' -2 12,071' -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 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. DECISION MADE TO POOH. 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 -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 +lorth 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 JT 4"HWDP 4-3/4"DRILLING JARS -1 JT4"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 DFAL 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) 04:30 - 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 WITH4-1/2" 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 07:00 START BATCH MIXING 15.8 PPG G CEMENT 08:00 STOP CIRCULATING.LINE UP SLB 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 PSI 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 A T 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 of9' 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) AT 1000PSI -THICKENING 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 LAY DOWN CEMENT HEAD+2 JTS DRILLPIPE 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 37/8"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 Page 8 of 9 North America-ALASKA- BP , 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) 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' -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 .forth 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) 11:30 - 12:30 1.00 EVAL P OTHCMP MAKE UP TOOLS FOR SCMT RUN 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 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 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 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 12:00:00AM 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) 01:00 - 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 LOWER 3 1/2"x 6"VARIABLES WITH 4"AND 5" 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 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 10692'MD 1'ABOVE 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 10400'MD. 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 SET 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. 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 SECTION 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 AND DRAWWORKS. 12:30 - 16:30 4.00 DRILL P PROD2 RIH TO 10325'MD.ESTABLISH PWD BASELINE. RIH TO 10609'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: X3-00V1Z-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) 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 -10-25KWOB -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 TO 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 • 410 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 FROM 10,240'TO 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' ND) -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 ......:.; i. �.. North4merica -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, HCR 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 L 4" EVERY 2,2 P FROM O ,211'TO 5,718' FILLING 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 Hrs 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 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) 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 -10KWOB -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 -12KWOB -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 DRILL FROM 13,860'TO 13,960'MD -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 TROUBLESHOOT LEAK IN SYSTEM -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 -CHOKAND 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 TO -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 -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 PPGMUDWTINANDOUT 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) 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) 17:00 - 18:30 1.50 CASING P RUNPRD MAKE UP HOOK HANGER ASSEMBLY AND 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 8,810'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 CEMENT IN PLACE 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 of Operations (hr) (ft) PUMPED--■■-- (BWOC)SILICA,S I ICA,3 5.5 SKS AT CUFT/SKI 20:00 - 21:00 1.00 CEMT P RUNPRD CIRCULATE BOTTOMS-UP -13 BPM,1,580 PSI -DIVERTED 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 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 PICK UP 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 18:30 - 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) 19:30 - 20:30 1.00 PERFOB P OTHCMP MAKE UP HOOK HANGER LATERAL DIVERTER BHA PER BAKER FISHING AS FOLLOWS: -"B"HOOK HANGER LATERAL DIVERTER -"GS"HYDRAULIC SPEAR -CROSSOVER -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 DIVERTER PUMP DOWN DRILLPIPE 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-GO AT 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 BBUHR 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'TO4,041'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 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 LD BHA -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 -5 JTS 4"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 l8 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) 19:30 - 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 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'TO 2,810'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 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 1 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-BR' :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 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 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 DFAL 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 Firs 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 T04,400 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'M 5 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. PRESSURE UP TO 3,500 ON OA TO TEST PACKER -3,500 PSI FOR 30 MIN. -TEST LOST 50 PSI IN THE 1ST 15 MIN,AND 0 PSI IN THE 2ND 15 MINUTES FORA 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=Sl.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') @I 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-19BL1 Design: W-19BL1 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 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: 5,957,194.18 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: 0.000in 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: 47.83 ft Wellbore W-19BL1 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-19BL1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 12,553.28 Vertical Section: Depth Froms(TVD) +N/-S +E/W' Direction (ft) (ft) (ft) (") 33.97 0.00 0.00 14.98 Survey Program Date 9/26/2010 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 10,591.76 MWD Run 300(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,619.00 12,553.28 MWD Run 1300 1400(W-19BL1PB1) MWD+IFR+MS MWD+IFR+Multi Station 12,568.00 14,655.32 MWD R1600(W-19BL1) MWD+IFR+MS MWD+IFR+Multi Station 9/26/2010 11:11:10AM 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) O (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 11:11:10AM 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-S +E/-W Northing Easting (ft) (°) C) (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 11:11:10AM 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 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 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 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 11:11:10AM 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 Welibore: W-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) [ (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 11:11:10AM 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 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 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 10,619.00 37.13 331.46 8,853.19 4,338.30 -1,957.57 5,963,869.19 610,027.21 70°18'37.138 N 149°6'30.345 W 10,668.62 37.90 340.38 8,892.58 4,365.83 -1,969.85 5,963,896.54 610,014.52 70°18'37.409 N 149°6'30.703 W 10,699.64 40.75 345.23 8,916.58 4,384.61 -1,975.63 5,963,915.22 610,008.45 70°18'37.593 N 149°6'30.872 W 10,731.16 44.62 349.67 8,939.75 4,405.46 -1,980.25 5,963,936.00 610,003.53 70°18'37.798 N 149°6'31.007 W 10,763.83 48.84 353.81 8,962.14 4,428.99 -1,983.63 5,963,959.47 609,999.80 70°18'38.030 N 149°6'31.106 W 10,793.72 53.40 357.26 8,980.90 4,452.18 -1,985.42 5,963,982.63 609,997.66 70°18'38.258 N 149°6'31.158 W 10,825.73 57.26 0.44 8,999.11 4,478.49 -1,985.93 5,964,008.93 609,996.76 70°18'38.517 N 149°6'31.173 W 10,857.95 62.39 4.58 9,015.31 4,506.29 -1,984.69 5,964,036.75 609,997.59 70°18'38.790 N 149°6'31.137 W 10,888.51 67.12 6.60 9,028.34 4,533.79 -1,981.98 5,964,064.28 609,999.88 70°18'39.060 N 149°6'31.058 W 10,920.67 72.25 9.22 9,039.50 4,563.65 -1,977.82 5,964,094.19 610,003.60 70°18'39.354 N 149°6'30.937 W 10,952.25 78.00 11.16 9,047.61 4,593.68 -1,972.42 5,964,124.29 610,008.55 70° 18'39.649 N 149°6'30.780 W 9/26/2010 11:11:10AM 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) (°) ', (°j (ft) (ft) (ft) (ft) (ft) Latitude Longitude 10,983.05 83.36 12.38 9,052.59 4,623.42 -1,966.22 5,964,154.12 610,014.31 70°18'39.942 N 149°6'30.599 W 11,012.08 89.34 12.39 9,054.44 4,651.70 -1,960.01 5,964,182.49 610,020.09 70°18'40.220 N 149°6'30.418 W 11,045.93 92.80 14.64 9,053.81 4,684.60 -1,952.10 5,964,215.51 610,027.51 70°18'40.544 N 149°6'30.188 W 11,077.28 92.86 17.79 9,052.26 4,714.66 -1,943.36 5,964,245.69 610,035.80 70°18'40.839 N 149°6'29.933 W 11,109.45 92.48 21.57 9,050.76 4,744.92 -1,932.54 5,964,276.10 610,046.17 70°18'41.137 N 149°6'29.618 W 11,141.28 92.47 24.82 9,049.39 4,774.14 -1,920.02 5,964,305.51 610,058.25 70° 18'41.424 N 149°6'29.253 W 11,172.57 93.08 29.37 9,047.87 4,801.96 -1,905.79 5,964,333.53 610,072.07 70°18'41.698 N 149°6'28.838 W 11,205.06 93.33 35.19 9,046.05 4,829.37 -1,888.47 5,964,361.20 610,088.97 70°18'41.968 N 149°6'28.333 W 11,235.41 94.38 39.75 9,044.01 4,853.40 -1,870.05 5,964,385.49 610,107.03 70°18'42.204 N 149°6'27.796 W 11,266.33 94.64 44.68 9,041.58 4,876.22 -1,849.35 5,964,408.62 610,127.39 70° 18'42.429 N 149°6'27.192 W 11,297.70 94.76 49.11 9,039.01 4,897.58 -1,826.53 5,964,430.31 610,149.88 70°18'42.639 N 149°6'26.526 W 11,330.39 92.65 52.25 9,036.89 4,918.25 -1,801.30 5,964,451.35 610,174.80 70° 18'42.842 N 149°6'25.791 W 11,364.89 90.55 54.95 9,035.93 4,938.71 -1,773.54 5,964,472.22 610,202.25 70° 18'43.043 N 149°6'24.981 W 11,392.49 91.11 60.08 9,035.53 4,953.53 -1,750.27 5,964,487.38 610,225.29 70° 18'43.189 N 149°6'24.302 W 11,424.60 91.23 64.76 9,034.87 4,968.38 -1,721.82 5,964,502.67 610,253.51 70°18'43.335 N 149°6'23.473 W 11,457.02 91.91 68.26 9,033.98 4,981.30 -1,692.11 5,964,516.02 610,283.03 70°18'43.462 N 149°6'22.606 W 11,488.13 90.62 72.84 9,033.30 4,991.65 -1,662.79 5,964,526.81 610,312.19 70°18'43.564 N 149°6'21.751 W 11,519.72 89.75 77.22 9,033.20 4,999.81 -1,632.28 5,964,535.42 610,342.57 70°18'43.645 N 149°6'20.861 W 11,549.53 90.24 83.07 9,033.20 5,004.91 -1,602.92 5,964,540.96 610,371.85 70° 18'43.695 N 149°6'20.005 W 11,580.74 93.45 87.31 9,032.19 5,007.53 -1,571.85 5,964,544.04 610,402.88 70° 18'43.721 N 149°6'19.098 W 11,611.53 94.01 91.78 9,030.19 5,007.77 -1,541.13 5,964,544.74 610,433.58 70° 18'43.723 N 149°6'18.202 W 11,643.06 94.26 96.70 9,027.91 5,005.45 -1,509.78 5,964,542.88 610,464.96 70° 18'43.700 N 149°6'17.288 W 11,677.54 93.46 101.00 9,025.59 5,000.16 -1,475.79 5,964,538.10 610,499.02 70° 18'43.648 N 149°6'16.296 W 11,707.12 92.47 103.71 9,024.06 4,993.84 -1,446.94 5,964,532.21 610,527.96 70° 18'43.586 N 149°6'15.455 W 11,738.10 91.66 106.47 9,022.95 4,985.78 -1,417.05 5,964,524.60 610,557.96 70° 18'43.507 N 149°6'14.583 W 11,770.35 92.47 109.33 9,021.78 4,975.87 -1,386.39 5,964,515.15 610,588.77 70° 18'43.410 N 149°6'13.688 W 11,799.44 93.46 113.24 9,020.28 4,965.33 -1,359.32 5,964,505.01 610,615.99 70°18'43.306 N 149°6'12.899 W 11,831.28 93.34 116.52 9,018.39 4,951.96 -1,330.49 5,964,492.08 610,645.01 70°18'43.174 N 149°6'12.057 W 11,863.09 92.72 120.30 9,016.71 4,936.85 -1,302.56 5,964,477.38 610,673.16 70°18'43.026 N 149°6'11.243 W 11,894.10 93.40 123.57 9,015.05 4,920.47 -1,276.28 5,964,461.40 610,699.68 70°18'42.865 N 149°6'10.476 W 11,925.41 93.40 127.03 9,013.19 4,902.41 -1,250.78 5,964,443.73 610,725.45 70°18'42.687 N 149°6'9.732 W 11,957.54 94.33 130.20 9,011.03 4,882.41 -1,225.73 5,964,424.10 610,750.79 70°18'42.491 N 149°6'9.001 W 11,988.52 95.56 133.65 9,008.36 4,861.79 -1,202.77 5,964,403.83 610,774.05 70°18'42.288 N 149°6'8.331 W 12,019.59 95.88 136.42 9,005.26 4,839.92 -1,180.93 5,964,382.29 610,796.22 70°18'42.073 N 149°6'7.694 W 12,054.32 94.33 139.13 9,002.17 4,814.31 -1,157.68 5,964,357.03 610,819.84 70°18'41.821 N 149°6'7.016 W 12,081.01 94.39 143.07 9,000.14 4,793.60 -1,140.98 5,964,336.57 610,836.85 70°18'41.617 N 149°6'6.529 W 12,113.91 93.40 145.35 8,997.90 4,766.97 -1,121.78 5,964,310.24 610,856.44 70°18'41.356 N 149°6'5.969 W 12,145.23 93.28 148.00 8,996.08 4,740.85 -1,104.61 5,964,284.38 610,874.00 70°18'41.099 N 149°6'5.467 W 12,174.50 93.96 151.53 8,994.23 4,715.62 -1,089.90 5,964,259.37 610,889.08 70°18'40.850 N 149°6'5.038 W 12,196.40 96.31 153.09 8,992.27 4,696.31 -1,079.76 5,964,240.21 610,899.50 70°18'40.661 N 149°6'4.743 W 12,211.11 96.87 153.04 8,990.58 4,683.28 -1,073.14 5,964,227.29 610,906.31 70°18'40.532 N 149°6'4.550 W 12,237.75 95.50 153.39 8,987.71 4,659.64 -1,061.21 5,964,203.83 610,918.60 70°18'40.300 N 149°6'4.201 W 12,267.65 94.11 153.80 8,985.21 4,632.95 -1,047.96 5,964,177.34 610,932.24 70°18'40.038 N 149°6'3.815 W 12,300.85 93.25 153.85 8,983.08 4,603.22 -1,033.34 5,964,147.83 610,947.30 70°18'39.745 N 149°6'3.388 W 12,331.31 93.17 153.22 8,981.37 4,575.99 -1,019.79 5,964,120.82 610,961.26 70°18'39.477 N 149°6'2.993 W 12,362.05 93.18 153.43 8,979.67 4,548.57 -1,006.01 5,964,093.60 610,975.44 70°18'39.208 N 149°6'2.591 W 12,395.31 91.36 153.71 8,978.35 4,518.81 -991.22 5,964,064.07 610,990.67 70°18'38.915 N 149°6'2.159 W 12,427.92 91.49 153.48 8,977.54 4,489.61 -976.72 5,964,035.09 611,005.60 70°18'38.628 N 149°6'1.736 W 12,458.96 90.58 153.71 8,976.98 4,461.81 -962.92 5,964,007.51 611,019.82 70°18'38.354 N 149°6'1.334 W 12,490.82 91.75 152.70 8,976.33 4,433.38 -948.56 5,963,979.29 611,034.60 70°18'38.075 N 149°6'0.915 W 12,522.15 93.38 151.27 8,974.93 4,405.75 -933.86 5,963,951.89 611,049.71 70°18'37.803 N 149°6'0.486 W 12,553.28 96.22 148.37 8,972.32 4,378.94 -918.27 5,963,925.31 611,065.69 70°18'37.539 N 149°6'0.031 W 12,568.00 97.49 147.09 8,970.57 4,366.58 -910.47 5,963,913.08 611,073.68 70° 18'37.418 N 149°5 59.803 W 12,598.88 94.18 144.39 8,967.43 4,341.20 -893.18 5,963,887.96 611,091.34 70° 18'37.168 N 149°5 59.299 W 12,631.21 96.86 141.10 8,964.32 4,315.59 -873.70 5,963,862.64 611,111.20 70°18'36.916 N 149°5'58.731 W 9/26/2010 11:11:10AM 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-19BL1 Survey Calculation Method: Minimum Curvature Design: W-19BL1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Inclination Azimuth Depth +N/-S +E/-W Northing Easting (ft) '. (°) (°) (ft) (ft) (ft) (ft) (ft) Latitude Longitude 12,665.74 99.08 138.91 8,959.53 4,289.39 -851.73 5,963,836.78 611,133.56 70°18'36.659 N 149°5 58.090 W 12,697.68 100.34 134.67 8,954.14 4,266.45 -830.18 5,963,814.16 611,155.44 70°18'36.433 N 149°5 57.461 W 12,729.89 102.61 131.83 8,947.73 4,244.82 -807.20 5,963,792.88 611,178.75 70°18'36.221 N 149°5 56.791 W 12,760.19 103.77 129.69 8,940.82 4,225.56 -784.85 5,963,773.96 611,201.37 70°18'36.031 N 149°5 56.139 W 12,793.68 104.36 129.16 8,932.68 4,204.93 -759.76 5,963,753.71 611,226.77 70°18'35.828 N 149°5'55.407 W 12,826.16 103.06 129.38 8,924.98 4,184.96 -735.33 5,963,734.10 611,251.49 70°18'35.632 N 149°5 54.694 W 12,859.53 100.24 129.22 8,918.24 4,164.26 -710.04 5,963,713.79 611,277.08 70°18'35.428 N 149°5 53.957 W 12,890.22 97.67 128.53 8,913.46 4,145.24 -686.44 5,963,695.12 611,300.96 70°18'35.241 N 149°5 53.268 W 12,922.33 94.94 128.07 8,909.94 4,125.46 -661.40 5,963,675.72 611,326.30 70°18'35.047 N 149°5 52.538 W 12,954.15 91.54 127.91 8,908.14 4,105.91 -636.36 5,963,656.54 611,351.62 70°18'34.855 N 149°5'51.808 W 12,985.23 89.74 129.55 8,907.79 4,086.46 -612.12 5,963,637.46 611,376.14 70°18'34.663 N 149°5'51.101 W 13,016.77 87.89 130.09 8,908.45 4,066.27 -587.90 5,963,617.64 611,400.66 70°18'34.465 N 149°5'50.394 W 13,048.60 88.37 129.14 8,909.48 4,045.99 -563.40 5,963,597.72 611,425.46 70°18'34.265 N 149°5'49.679 W 13,079.71 88.93 128.79 8,910.22 4,026.43 -539.21 5,963,578.53 611,449.93 70°18'34.073 N 149°5'48.974 W 13,175.04 88.43 127.08 8,912.41 3,967.84 -464.05 5,963,521.07 611,525.95 70°18'33.497 N 149°5'46.782 W 13,268.98 87.94 124.63 8,915.39 3,912.85 -387.96 5,963,467.23 611,602.85 70°18'32.956 N 149°5'44.562 W 13,364.34 88.31 124.53 8,918.51 3,858.76 -309.48 5,963,414.31 611,682.12 70°18'32.424 N 149°5 42.273 W 13,459.68 88.53 122.45 8,921.14 3,806.17 -230.01 5,963,362.92 611,762.36 70°18'31.907 N 149°5'39.955 W 13,557.33 89.25 120.13 8,923.03 3,755.47 -146.58 5,963,313.47 611,846.53 70°18'31.408 N 149°5'37.522 W 13,649.28 88.94 118.99 8,924.48 3,710.11 -66.61 5,963,269.32 611,927.16 70°18'30.962 N 149°5'35.190 W 13,744.31 87.95 117.83 8,927.06 3,664.92 16.94 5,963,225.38 612,011.37 70°18'30.518 N 149°5'32.753 W 13,837.79 88.08 115.45 8,930.30 3,623.03 100.44 5,963,184.75 612,095.47 70°18'30.106 N 149°5'30.318 W 13,926.04 90.22 111.38 8,931.61 3,587.98 181.39 5,963,150.90 612,176.93 70°18'29.761 N 149°5'27.957 W 13,965.87 89.99 110.81 8,931.54 3,573.64 218.55 5,963,137.13 612,214.30 70°18'29.620 N 149°5'26.873 W 13,995.85 89.53 110.98 8,931.66 3,562.95 246.56 5,963,126.85 612,242.46 70°18'29.515 N 149°5'26.056 W 14,028.26 89.42 110.59 8,931.96 3,551.45 276.86 5,963,115.81 612,272.93 70°18'29.402 N 149°5'25.173 W 14,123.79 86.84 108.77 8,935.08 3,519.30 366.75 5,963,085.00 612,363.28 70°18'29.085 N 149°5'22.551 W 14,218.01 85.52 107.26 8,941.35 3,490.22 456.15 5,963,057.27 612,453.09 70°18'28.799 N 149°5'19.944 W 14,248.20 84.10 107.06 8,944.08 3,481.35 484.87 5,963,048.83 612,481.94 70°18'28.712 N 149°5'19.106 W 14,279.82 83.43 108.84 8,947.52 3,471.67 514.78 5,963,039.59 612,511.98 70°18'28.617 N 149°5'18.234 W 14,310.10 80.41 109.61 8,951.77 3,461.80 543.08 5,963,030.14 612,540.43 70°18'28.520 N 149°5'17.409 W 14,342.52 77.89 110.40 8,957.88 3,450.91 573.00 5,963,019.70 612,570.50 70°18'28.413 N 149°5'16.536 W 14,374.87 75.46 110.63 8,965.33 3,439.87 602.48 5,963,009.11 612,600.14 70°18'28.304 N 149°5'15.676 W 14,404.21 73.30 109.40 8,973.23 3,430.20 629.02 5,962,999.84 612,626.83 70°18'28.209 N 149°5'14.902 W 14,436.20 72.07 110.88 8,982.75 3,419.69 657.70 5,962,989.75 612,655.65 70°18'28.106 N 149°5'14.066 W 14,466.87 72.07 111.66 8,992.20 3,409.10 684.89 5,962,979.57 612,683.00 70°18'28.001 N 149°5'13.273 W 14,499.95 71.61 111.60 9,002.51 3,397.52 714.11 5,962,968.42 612,712.38 70°18'27.887 N 149°5'12.421 W 14,592.44 70.95 113.06 9,032.19 3,364.24 795.13 5,962,936.36 612,793.89 70°18'27.560 N 149°5'10.058 W 14,617.28 70.96 112.53 9,040.30 3,355.14 816.78 5,962,927.59 612,815.67 70°18'27.471 N 149°5'9.427 W 14,655.32 70.44 112.77 9,052.87 3,341.32 849.91 5,962,914.26 612,849.00 70°18'27.335 N 149°5'8.460 W 14,701.00 70.44 112.77 9,068.16 3,324.66 889.60 5,962,898.19 612,888.93 70°18'27.171 N 149°5'7.303 W Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (in) (in) 10,528.87 8,782.06 INTERMEDIATE CASING 1 9.625 12.250 2,688.37 2,683.17 13 3/8" 13.375 17.500 Checked By: Approved By: Date: 9/26/2010 11:11:10AM Page 9 COMPASS 2003.16 Build 73 North America - ALASKA - BP Prudhoe Bay PB W Pad W-19 W-19BL1 PB1 Design: W-19BL1 PB1 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-19BL1 PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 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 I Position Uncertainty: 0.00 ft Slot Radius: 0.000in 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-19BL1PB1 I Magnetics Model Name Sample Date Declination Dip Angle Field Strength r) (°); (nT) BGGM2007 10/20/2008 22.80 80.88 57,665 BGGM2010 8/1/2010 21.82 80.93 57,646 Design W-19BL1PB1 Audit Notes: Version: Phase: ACTUAL Tie On Depth: 10,591.76 Vertical Section: Depth From(TVD) +N/-S +El-W Direction (ft) (ft) (ft) (0) L 33.97 0.00 0.00 349.22 Survey Program Date 9/26/2010 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 1 9,378.39 10,493.92 MWD Run 200(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,591.76 10,591.76 MWD Run 300(W-19BPB1) MWD+IFR+MS MWD+IFR+Multi Station 10,619.00 12,836.04 MWD Run 1300 1400(W-19BL1PB1) MWD+IFR+MS MWD+IFR+Multi Station 9/26/2010 10:53:24AM 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-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Inclination Azimuth Depth +N/-Si +E/-W Northing Easting, (ft) C) (°) (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 10:53:24AM 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 Weflbore: W-19BL1 PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 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 10:53:24AM 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-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +N/-5 +E/-W Northing Easting (ft) (°) (e) (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 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 10:53:24AM 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-19BL1 PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 Database: EDM.16-Anc Prod-WH24P Survey Measured Vertical Map Map Depth Inclination Azimuth Depth +NI-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 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 10:53:24AM 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 ND 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-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 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 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 10,619.00 37.13 331.46 8,853.19 4,338.30 -1,957.57 5,963,869.19 610,027.21 70°18'37.138 N 149°6'30.345 W 10,668.62 37.90 340.38 8,892.58 4,365.83 -1,969.85 5,963,896.54 610,014.52 70°18'37.409 N 149°6'30.703 W 10,699.64 40.75 345.23 8,916.58 4,384.61 -1,975.63 5,963,915.22 610,008.45 70°18'37.593 N 149°6'30.872 W 10,731.16 44.62 349.67 8,939.75 4,405.46 -1,980.25 5,963,936.00 610,003.53 70°18'37.798 N 149°6'31.007 W 10,763.83 48.84 353.81 8,962.14 4,428.99 -1,983.63 5,963,959.47 609,999.80 70°18'38.030 N 149°6'31.106 W 10,793.72 53.40 357.26 8,980.90 4,452.18 -1,985.42 5,963,982.63 609,997.66 70°18'38.258 N 149°6'31.158 W 10,825.73 57.26 0.44 8,999.11 4,478.49 -1,985.93 5,964,008.93 609,996.76 70°18'38.517 N 149°6'31.173 W 10,857.95 62.39 4.58 9,015.31 4,506.29 -1,984.69 5,964,036.75 609,997.59 70°18'38.790 N 149°6'31.137 W 10,888.51 67.12 6.60 9,028.34 4,533.79 -1,981.98 5,964,064.28 609,999.88 70°18'39.060 N 149°6'31.058 W 10,920.67 72.25 9.22 9,039.50 4,563.65 -1,977.82 5,964,094.19 610,003.60 70°18'39.354 N 149°6'30.937 W 10,952.25 78.00 11.16 9,047.61 4,593.68 -1,972.42 5,964,124.29 610,008.55 70°18'39.649 N 149°6'30.780 W 9/26/2010 10:53:24AM 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-198 @ 86.87ft(Doyon 14) Site: PB W Pad MD Reference: W-19B @ 86.87ft(Doyon 14) Well: W-19 North Reference: True Wel!bore: W-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-198L1PB1 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 10,983.05 83.36 12.38 9,052.59 4,623.42 -1,966.22 5,964,154.12 610,014.31 70°18'39.942 N 149°6'30.599 W 11,012.08 89.34 12.39 9,054.44 4,651.70 -1,960.01 5,964,182.49 610,020.09 70°18'40.220 N 149°6'30.418 W 11,045.93 92.80 14.64 9,053.81 4,684.60 -1,952.10 5,964,215.51 610,027.51 70° 18'40.544 N 149°6'30.188 W 11,077.28 92.86 17.79 9,052.26 4,714.66 -1,943.36 5,964,245.69 610,035.80 70° 18'40.839 N 149°6'29.933 W 11,109.45 92.48 21.57 9,050.76 4,744.92 -1,932.54 5,964,276.10 610,046.17 70°18'41.137 N 149°6'29.618 W 11,141.28 92.47 24.82 9,049.39 4,774.14 -1,920.02 5,964,305.51 610,058.25 70° 18'41.424 N 149°6'29.253 W 11,172.57 93.08 29.37 9,047.87 4,801.96 -1,905.79 5,964,333.53 610,072.07 70° 18'41.698 N 149°6'28.838 W 11,205.06 93.33 35.19 9,046.05 4,829.37 -1,888.47 5,964,361.20 610,088.97 70°18'41.968 N 149°6'28.333 W 11,235.41 94.38 39.75 9,044.01 4,853.40 -1,870.05 5,964,385.49 610,107.03 70°18'42.204 N 149°6'27.796 W 11,266.33 94.64 44.68 9,041.58 4,876.22 -1,849.35 5,964,408.62 610,127.39 70°18'42.429 N 149°6'27.192 W 11,297.70 94.76 49.11 9,039.01 4,897.58 -1,826.53 5,964,430.31 610,149.88 70°18'42.639 N 149°6'26.526 W 11,330.39 92.65 52.25 9,036.89 4,918.25 -1,801.30 5,964,451.35 610,174.80 70°18'42.842 N 149°6'25.791 W 11,364.89 90.55 54.95 9,035.93 4,938.71 -1,773.54 5,964,472.22 610,202.25 70°18'43.043 N 149°6'24.981 W 11,392.49 91.11 60.08 9,035.53 4,953.53 -1,750.27 5,964,487.38 610,225.29 70°18'43.189 N 149°6'24.302 W 11,424.60 91.23 64.76 9,034.87 4,968.38 -1,721.82 5,964,502.67 610,253.51 70°18'43.335 N 149°6'23.473 W 11,457.02 91.91 68.26 9,033.98 4,981.30 -1,692.11 5,964,516.02 610,283.03 70°18'43.462 N 149°6'22.606 W 11,488.13 90.62 72.84 9,033.30 4,991.65 -1,662.79 5,964,526.81 610,312.19 70°18'43.564 N 149°6'21.751 W 11,519.72 89.75 77.22 9,033.20 4,999.81 -1,632.28 5,964,535.42 610,342.57 70°18'43.645 N 149°6'20.861 W 11,549.53 90.24 83.07 9,033.20 5,004.91 -1,602.92 5,964,540.96 610,371.85 70°18'43.695 N 149°6'20.005 W 11,580.74 93.45 87.31 9,032.19 5,007.53 -1,571.85 5,964,544.04 610,402.88 70° 18'43.721 N 149°6'19.098 W 11,611.53 94.01 91.78 9,030.19 5,007.77 -1,541.13 5,964,544.74 610,433.58 70° 18'43.723 N 149°6'18.202 W 11,643.06 94.26 96.70 9,027.91 5,005.45 -1,509.78 5,964,542.88 610,464.96 70°18'43.700 N 149°6'17.288 W 11,677.54 93.46 101.00 9,025.59 5,000.16 -1,475.79 5,964,538.10 610,499.02 70°18'43.648 N 149°6'16.296 W 11,707.12 92.47 103.71 9,024.06 4,993.84 -1,446.94 5,964,532.21 610,527.96 70°18'43.586 N 149°6'15.455 W 11,738.10 91.66 106.47 9,022.95 4,985.78 -1,417.05 5,964,524.60 610,557.96 70°18'43.507 N 149°6'14.583 W 11,770.35 92.47 109.33 9,021.78 4,975.87 -1,386.39 5,964,515.15 610,588.77 70°18'43.410 N 149°6'13.688 W 11,799.44 93.46 113.24 9,020.28 4,965.33 -1,359.32 5,964,505.01 610,615.99 70° 18'43.306 N 149°6'12.899 W 11,831.28 93.34 116.52 9,018.39 4,951.96 -1,330.49 5,964,492.08 610,645.01 70° 18'43.174 N 149°6'12.057 W 11,863.09 92.72 120.30 9,016.71 4,936.85 -1,302.56 5,964,477.38 610,673.16 70° 18'43.026 N 149°6'11.243 W 11,894.10 93.40 123.57 9,015.05 4,920.47 -1,276.28 5,964,461.40 610,699.68 70° 18'42.865 N 149°6'10.476 W 11,925.41 93.40 127.03 9,013.19 4,902.41 -1,250.78 5,964,443.73 610,725.45 70°18'42.687 N 149°6'9.732 W 11,957.54 94.33 130.20 9,011.03 4,882.41 -1,225.73 5,964,424.10 610,750.79 70°18'42.491 N 149°6'9.001 W 11,988.52 95.56 133.65 9,008.36 4,861.79 -1,202.77 5,964,403.83 610,774.05 70°18'42.288 N 149°6'8.331 W 12,019.59 95.88 136.42 9,005.26 4,839.92 -1,180.93 5,964,382.29 610,796.22 70°18'42.073 N 149°6'7.694 W 12,054.32 94.33 139.13 9,002.17 4,814.31 -1,157.68 5,964,357.03 610,819.84 70°18'41.821 N 149°6'7.016 W 12,081.01 94.39 143.07 9,000.14 4,793.60 -1,140.98 5,964,336.57 610,836.85 70°18'41.617 N 149°6'6.529 W 12,113.91 93.40 145.35 8,997.90 4,766.97 -1,121.78 5,964,310.24 610,856.44 70°18'41.356 N 149°6'5.969 W 12,145.23 93.28 148.00 8,996.08 4,740.85 -1,104.61 5,964,284.38 610,874.00 70°18'41.099 N 149°6'5.467 W 12,174.50 93.96 151.53 8,994.23 4,715.62 -1,089.90 5,964,259.37 610,889.08 70°18'40.850 N 149°6'5.038 W 12,196.40 96.31 153.09 8,992.27 4,696.31 -1,079.76 5,964,240.21 610,899.50 70°18'40.661 N 149°6'4.743 W 12,211.11 96.87 153.04 8,990.58 4,683.28 -1,073.14 5,964,227.29 610,906.31 70°18'40.532 N 149°6'4.550 W 12,237.75 95.50 153.39 8,987.71 4,659.64 -1,061.21 5,964,203.83 610,918.60 70° 18'40.300 N 149°6'4.201 W 12,267.65 94.11 153.80 8,985.21 4,632.95 -1,047.96 5,964,177.34 610,932.24 70°18'40.038 N 149°6'3.815 W 12,300.85 93.25 153.85 8,983.08 4,603.22 -1,033.34 5,964,147.83 610,947.30 70° 18'39.745 N 149°6'3.388 W 12,331.31 93.17 153.22 8,981.37 4,575.99 -1,019.79 5,964,120.82 610,961.26 70°18'39.477 N 149°6'2.993 W 12,362.05 93.18 153.43 8,979.67 4,548.57 -1,006.01 5,964,093.60 610,975.44 70°18'39.208 N 149°6'2.591 W 12,395.31 91.36 153.71 8,978.35 4,518.81 -991.22 5,964,064.07 610,990.67 70°18'38.915 N 149°6'2.159 W 12,427.92 91.49 153.48 8,977.54 4,489.61 -976.72 5,964,035.09 611,005.60 70°18'38.628 N 149°6'1.736 W 12,458.96 90.58 153.71 8,976.98 4,461.81 -962.92 5,964,007.51 611,019.82 70°18'38.354 N 149°6'1.334 W 12,490.82 91.75 152.70 8,976.33 4,433.38 -948.56 5,963,979.29 611,034.60 70°18'38.075 N 149°6'0.915 W 12,522.15 93.38 151.27 8,974.93 4,405.75 -933.86 5,963,951.89 611,049.71 70°18'37.803 N 149°6'0.486 W 12,553.28 96.22 148.37 8,972.32 4,378.94 -918.27 5,963,925.31 611,065.69 70°18'37.539 N 149°6'0.031 W 12,583.44 98.82 145.74 8,968.38 4,353.85 -902.02 5,963,900.47 611,082.32 70°18'37.293 N 149°5'59.557 W 12,615.59 102.47 143.42 8,962.44 4,328.10 -883.71 5,963,875.01 611,101.00 70°18'37.040 N 149°5'59.023 W 12,645.52 105.95 141.26 8,955.09 4,305.14 -865.99 5,963,852.31 611,119.06 70°18'36.814 N 149°5'58.506 W 9/26/2010 10:53:24AM 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-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 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 12,678.33 108.35 139.42 8,945.42 4,281.00 -845.99 5,963,828.48 611,139.42 70°18 36.576 N 149°5'57.922 W 12,711.35 112.01 137.41 8,934.03 4,257.82 -825.43 5,963,805.61 611,160.33 70° 18'36.348 N 149°5'57.322 W 12,740.39 115.62 135.27 8,922.30 4,238.60 -807.09 5,963,786.66 611,178.94 70°18'36.159 N 149°5'56.788 W 12,768.33 120.20 132.23 8,909.22 4,221.53 -789.28 5,963,769.86 611,197.01 70°18'35.991 N 149°5'56.268 W 12,802.85 125.04 129.65 8,890.62 4,202.47 -767.33 5,963,751.13 611,219.23 70°18'35.804 N 149°5'55.628 W 12,836.04 127.23 128.23 8,871.05 4,185.62 -746.49 5,963,734.60 611,240.32 70°18'35.638 N 149°5'55.020 W 12,877.00 127.23 128.23 8,846.27 4,165.44 -720.87 5,963,714.80 611,266.24 70° 18'35.440 N 149°5'54.273 W 9/26/2010 10:53:24AM 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-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 Database: EDM.16-Anc Prod-WH24P Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +N/S +E/-W " Northing Easting •Shape (°) (0) (ft) (ft) (ft) (ft) (ft) L atitude Longitude 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 60.85ft at 12434.29ft MD(8977.38 TVD,4483.91 N,-973.88 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 1784.86ft at 11205.06ft MD(9046.05 TVD,4829.37 N,-1888.47 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 404.47ft at 11905.63ft MD(9014.37 TVD,4914.00 N,-1266.76 E) -Polygon Point 1 8,936.87 5,240.62 -1,041.14 5,964,785.00 610,930.00 Point 2 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 Point4 8,936.87 4,227.89 -1,206.27 5,963,770.00 610,780.00 1W-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 1552.17ft at 11235.41ft MD(9044.01 TVD,4853.40 N,-1870.05 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 3505.64ft at 11205.06ft MD(9046.05 TVD,4829.37 N,-1888.47 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 1009.24ft at 11519.72ft MD(9033.20 TVD,4999.81 N,-1632.28 E) -Polygon Point 1 8,936.87 5,982.68 -1,840.24 5,965,515.00 610,120.00 Point 2 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 Point 5 8,936.87 3,971.24 -1,770.21 5,963,505.00 610,220.00 Point 6 8,936.87 4,501.38 -1,772.31 5,964,035.00 610,210.00 W-19B 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 1193.75ft at 11352.50ft MD(9036.13 TVD,4931.51 N,-1783.63 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 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 1154.29ft at 11364.89ft MD(9035.93 TVD,4938.71 N,-1773.54 E) -Polygon Point 1 8,926.87 5,901.04 -2,401.56 5,965,425.00 609,560.00 9/26/2010 10:53:24AM Page 10 COMPASS 2003.16 Build 73 BPPASSPORT Survey Report-Geographic Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay ND 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-19BL1PB1 Survey Calculation Method: Minimum Curvature Design: W-19BL1PB1 Database: EDM.16-Anc Prod-WH24P 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 173.25ft at 12745.88ft MD(8919.89 TVD,4235.12 N,-803.61 E) -Polygon 1W-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 2903.26ft at 11172.57ft MD(9047.87 TVD,4801.96 N,-1905.79 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 1623.09ft at 11179.38ft MD(9047.50 TVD,4807.85 N,-1902.39 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 Checked By: Approved By: Date: 9/26/2010 10:53:24AM Page 11 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) Press(psi) BHP(psi) EMW(ppg) Name W-19BPB1 :8/14/2010 FIT : 8.70: 8,796.49: 10,528.49: 1,150.0 5,126.2 11.22 W-19BPB1 W-19BPB1 VV-19BPB1 10/21/2010 14:57 Page 1 of 1 aDIF 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-19BL1 BP Exploration (Alaska), Inc. Permit No: 210-066 Surface Location: 696'FNL, 1181' FEL, SEC. 21, T11N, R12E, UM Bottomhole Location: 2725' FSL, 315' FEL, SEC. 16, T11N, R12E, UM Dear Mr. Tirpack: Enclosed is the approved application for permit to re-drill the above referenced development well. The permit is for a new wellbore segment of existing well PBU W-19B, Permit No 210- 065, API 50-029-2200661-00. Production should continue to be reported as a function of the original API number stated above. 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 •mmission order, or the terms and conditions of this permit may result in the revo' tion •r suspension of the permit. • . � • man C•mm stoner DATED this May of May, 2010. cc: Department of Fish 85 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) „. STATE OF ALASKA RECEIVE ALA: OIL AND GAS CONSERVATION COMM ON PERMIT TO DRILL MAY 1 8 20105'° /'0 20 AAC 25.005 1 a.Type of work: lb.Proposed Well Class: 4 i ' �i ose for: ®Development Oil ❑Service-Winj ❑Single Zone ❑ Drill IS Redrill ❑ Stratigraphic Test ❑Development Gas ❑Service-Supply ❑Multiple Zone ❑ Coalb •' -.■ Gas Hydrates ❑ Re-Entry ❑ Exploratory ❑Service-WAG ❑Service-Disp ❑Shale Gas 2. Operator Name: 5.Bond: ® Blanket ❑Single Well 11. Well Name and Number: BP Exploration(Alaska)Inc. Bond No. 6194193 PBU W-19BL1 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 14671' TVD 9053' Prudhoe Bay Field/Prudhoe 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Bay Oil Pool Surface: ADL 028263 696' FNL, 1181'FEL, SEC.21,T11N, R12E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 3727' FSL,3166'FEL, SEC. 16,T11N, R12E, UM July 1,2010 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 2725'FSL,315'FEL,SEC. 16,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: 10540 feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 120 degrees Downhole: 3700 Surface: 2830 18. Casing Program: Specifications Top-Setting D epth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling, Length MD ND MD ND (including stage data) 6-1/8” 4-1/2" 12.6# 13Cr80 VamTop 4130' 10540' 8822' 14670' 9053' 585 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, See 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 10453' 9-5/8" 2391 cu ft LiteCrete.473 cu ft Class'G' 10453' 8763' Production Liner 3337' 7-5/8"x 4-1/2" 467 cu ft Class'G' 10303'- 13640' 8847'-903T,_ Perforation Depth MD(ft): Perforation Depth ND(ft): 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 Rob Tirpack Title Engineering Team Leader /�/ Prepared By Name/Number: Signature l'e9G ! G �+ Phone 564-4166 Date 0�T7J/' Terrie Hubble,564-4628 Commission Use Only Permit To Drill API Number: Perm�iP Aral Date: See cover letter for Number:a/OO46 50-029-22006-61-00 J� (DI t,O 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: 350 I j� �6 S � / `1 Samples Req'd: ❑ es I No Mud Log Req'd: ❑Yes �No 4-2.560 per. Ann e-J ` J H25 Measures: Yes ❑No nirectional Survey Req'd: L1rYes ❑No / i� APPROVED BY THE COMMISSION Date 2-b °i 0 7 ,COMMISSIONER Form 10-401 Revised 07/2009 This permit is valid for 24 months from the date of-• (20 AAC 2 .•, , Submit In Duplicate OR \ GNL 2Y-/0 ,. 7--2-5/(0 Well Name: W-19B, W-19BL1 Drill and Complete Plan Summary Type of Well(service/producer/injector): ! Producer Target X Y Township Range Section FSL FEL Surface 612049.07 5959560.93 11N 12E 21 4553 1181 W-1913 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, 41" 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 Mud 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 I BTC 1 2692 I GL I 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 41/2" 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 40-1b/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 BL 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 +/-150'M.D. See Fault section for details. UG4 -3340 +/-25' Thin coal Heavy oil from-3375 to-3425' UG4A -3375 +/-25' ss 1503 8.7 UG3 -3710 +/-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 +/-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 +/-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-1 9B/BL1 Permit Application Page 5 Well TD Criteria TD criteria is 100'MD below 8880'sstvd OR the top swept(<8ohmms),whichever is deeper. Ideally we 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. -1 B/BL1 Permit Application Pa W 9 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-Riq: P&A Existing W-19A&W-19AL1 production intervals: 1 S Drift 4 1/2" 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 AL1 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 4'h"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 1 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. Rip 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', circulate wellbore clean with seawater.TOH. 10. RU slickline. Set CIBP in 9 5/8" @ 2850'MD. 11. Run a USIT/CCL/GR from the CIBP to surface to determine 9-5/8"TOC&collar locations. RD slickline. 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) A from the OA annulus with warm diesel followed by sea water and detergent sweeps. Pull the 9-5/8"casing jA 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 CIBP and 300' up into 13 3/8"shoe. Displace with seawater. TOH. 21. PU 12 /" Dir/GR/RES/PWD BHA with PDC bit. RIH to clean out 13-3/8" and displace wellbore to new LSND 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. 23. Directionally drill to 9 5/8" casing point into the Top Sag. This critical casing point will be picked by the w,)� 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 8' " 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 1/2" 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. 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 '/2" 12.6# 13CR VAM Top liner with 5 1/2"x 4 1/2"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" 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. Perf 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 41"SBR. 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 41" crossover. Orient the whipstock to generally high side, set whip, shear off, swap to drilling fluid, mill window,TOH, LD BHA. 44. PU 6 1/8" drilling assembly with TCI bit for the build and turn section. TIH & drill curve. Drill pilot hole plugback W-19BL1PB1. PU hole to KO point for BL1 lateral and trench for open hole sidetrack. 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 Pr.() 46. TIH & pull whipstock and anchor. 47. Case & Cement the BL1 interval: With the HR running tool with 2-7/8" inner string, run 4-1/2" 13CR 12.6# VAM Top solid liner with 13CR bent joint and 13CR B-Hook Hander with swell packers near the junction to be set in 6.125"drilled hole. Land hook on window. 48. Pump cement. Displace with pert 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. Pert W-19BL1 4'h" 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. - USE titu,..4) ,fib, Die 58. R/U, M/U -10,400' of 4-1/2" 13CR VAM Top completion tubing with 41"seal stem on bottom, 4'/ 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 41/2"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. Sac 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 (PPM (PPM 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 Oppg Interval IV. Hydrogen Sulfide Standard H2S precautions will be followed at all times. Recent H2S data from the pad is as follows: H S 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"CMV/FMC WELLHEAD= 13-5/8"FMC VV-1 9AL1 WELLBO E I STILL OPEN 11349'. W-19A ACTUATOR= BAKER KB. ELEV= 80.25' ' BF.ELEV= 54.15' KOP= 1510' Max Angle= 96 @ 11600' Datum MD= 11117' ' I 2111' H4-1/2"HES X NIP,ID=3.813" I Datum TV D= 8800'SS 13-3/8"CSG,68#,L-80, ID=12.415" -I 2692' I--, GAS LIFT MANDRELS Minimum ID = 3.80" @ 10767' ST MD TVD 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 • • TOP OF 7"LNR -) 10308' vg 1 I i1 J TOP OF CEMENT — 10468' I I i1���� �� MILLOUT WINDOW(W-19A)10463'-10513' . 111 .•11111111111 9-5/8"CSG,47#,L-80,ID=8.681" —I 11560' I *1111111111114 ••,111/111/• 1411111i 10712' I—{4-1/2"HES X NIP, ID=3.813" I .•�111N1�, PERFORATION SUMMARY FOR WELLBORE A&L1 ���� IA 10723' 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 PAGE 2 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" ELMD TT LOG NOT AVAILABLE TOP OF 4-1/2"LNR -1 10774' I 0 10926'-10966' 4-1/2"BKR PATCH(09/29/07), 4-1/2"TBG, 12.6#, L-80,.0152 bpf,ID=3.958" -1 10779' ID=???? q 1,t 10978' 3-1/2"BRK DEPLOY SLV,ID=3.00" 7"LNR,26#,L-80,.0383 bpf,ID=6.276" H 10935' �' ` 10981' 3-1/2"X 2-7/8"x0, I MILLOUT WINDOW(W-19AL1)10948'- 10954' '� y _ ID=2.441" J , ‘ `\ FISH:3-1/2"OD X 2-3/8"ID X 3-7/8"LONG H ??? I ihe J FETD I 11930' PBTD -I 14406' I !,444: 4-1/2"LNR, 12.6#, L-80, .0152 bpf, ID=3.953" —$ 14495' I i 2-7/8"LNR(SOLID&PRE-DRILLED), -1 11962' 6.16#,L-80, .0058 bpf, ID=2.372" TO -I 12701' I DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION 09/29/07 TEL/TLH PATCH SET WELL: W-19AL1 12/25/98 SIDETRACK(W-19A) 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 SEC 21,T11 N,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 J L PERFORATION SUMMARY FOR WELLBORE A REF LOG: SWS MWD MEM RES ON 11/29/98 ANGLE AT TOP PERF:57 @ 11154' Note:Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE MI — 2-7/8" 4 11154-11204 0 11/11/02 , 2-7/8" 4 11220-11236 0 11/11/02 2-7/8" 4 11250-11360 0 11/11/02 l� i.; 2-7/8" 4 11419-11500 0 11/11/02 �•�'��'• �� 2-7/8" 4 11530-11610 0 11/11/02 •••••• �∎•1.1•x•• .4 2-7/8" 4 11665-11750 0 12/24/98 ••••• � • 2-7/8" 4 11844-11875 0 04/28/01 ����•�•�•�•�•4 2-7/8" 4 11929-11960 0 04/28/01 �����••••�∎ 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 ,A 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 1111 PERFORATION SUMMARY FOR WELLBORE L1 lit REF LOG: SPERRY MWD SGRC ON 03/05/03 ANGLE AT TOP PERF: ‘ lliimailkisir Note:Refer to Production DB for historical pert data 0 I SIZE SPF INTERVAL Opn/Sqz DATE * 4 11249-11408 0 03/05/03 * 4 11706-11930 0 03/05/03 ilf *PRE-DRILLED PIPE 4 4. DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 1990 J.JONES ORIGINAL COMPLETION 09/29/07 TEL/TLH PATCH SET WELL: W-19AL1 12/25/98 SIDETRACK(W-19A) PERMIT No: 2022350 03/08/03 DAC/TLH SIDETRACK(W-19AL1) AR No: 50-029-22006-01 03/21/03 AF/KAK ADD TOP OF WINDOW SEC21,T11N,R12E,695.7'FNL&1181.2'FEL 03/24/03 JIWKAK GLV C/O 05/01/07 KCF/PJC XN NIP MILLED(02/25/03) BP Exploration(Alaska) ' TREE W-1 g B SE "NOTES: ALL CHROME LINER's, WELLHEAD= --------------____ _.-- JUI.,..I ION,&COMPLETION ACTUATOR= KB.ELEV= 80.25' W-1 9 B L 1 BE ELEV= 54.15' - KOP= 2800' Max Angle= 101 deg Datum MD= I I 2200' H 4-1/2"HES X NIP,ID=3.813" Datum TVD= 8800'SS 13-3/8"CSG,72#, L-80, ID=12.415" H 2692' GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE L 8 9-5/8" CSG, 40#, L-80,HYD 563, ID=8.835" H 8500' 7 6 5 4 1/2"x 9-5/8"BKR PREMIER PKR H 10,317' I I 4 4-1/2"HES X NIP, ID=3.813" H 10500' „ 2 9-5/8"CSG,40#, L-80, BTC,ID=8.835" — I 1 10253' ' 9-5/8"X 7-5/8"Baker ZXP Liner Top Packer —I 10,303' �.S 10,510' _17 5/8"X 5-1/2"BKRZXP LTP, ID=3.875" 9-5/8"x7-5/8"FLEXLOCK LH H 10303' • 10,510' 1_1 Baker Lateral Entry Module I 9-5/8" CSG,47#, L-80, BTC-M,ID=8.681" —{ 10453' MILLOUT WINDOW 10540-10553' :i 14670' —4-1/2"LNR, 12.6#,13CR,VT,ID=3.958" 7-5/8"LNR,29.7#,L-80,STL, ID=6.875" , i 10623' \ /�� •�:f 5-1/2"13CR 17ppf,VT,ID=4.767"Drif—1 10,659' 1-________ "� i1%♦ 5-12"X 4-1/2"SBR,ID=4.76T'Drif'— 10679' !�•�•�•�• 5-12"X 4-12"XO, ID= 3.958"—{ 10,685' 1 ® e xxxx 5.85"Sw ell Pkr 13CR VT,ID=3.958" Minimum ID = "@" .0 B�k �, 1S..1Q co,..J �.. G BKR Hook Hanger w/ non-sealing LEM 1-g" '�at'i" XXXX' 1_15.85"Sw ell Pkr 13CR VT,ID=3.958" PERFORATION SUMMARY ® �.1.4 REF LOG: TCP PERF ANGLE ATTOPPERF: © Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2-1/2" 4 0 2-1/2" 4 0 2-12" 4 O 2-12" 4 O 2-12" 4 O 2-1/2" 4 0 2-1/2" 4 0 ii=: 2-12" 4 O .;vim w^19 a 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 PERMIT No: AR No: BP Exploration(Alaska) BP - Alaska Prudhoe Bay PB W Pad W-19 Plan W-19BL1 PB1 Plan: Plan W-19BL1 PB1 Wp 7 Standard Proposal Report 04 May, 2010 HALLIBURTON Sperry Drilling Services m 47N NAOO.- N N N 65.-6,4 wa a '. 0 0 0 0 0 0 0 0 0 0 c N a.LL LL .0000000000o 0 6 6 6 2 + + ammmmmmmmmmm«... 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Sperry Drilling HALLIBURT0A1 Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Project: Prudhoe Bay MD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1PB1 Design: Plan W-19BL1PB1 Wp 7 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: 609,919.18 ft Longitude: 149°6'36.343 W Position Uncertainty: 0.0 ft Slot Radius: 0" Grid Convergence: 0.84 ° Well W-19,W-19 Well Position +N/-S 0.0 ft Northing: 5,959,560.93 ft Latitude: 70°17'54.473 N +E/-W 0.0 ft Easting: 612,049.07 ft Longitude: 149°5'33.247 W Position Uncertainty 0.0 ft Wellhead Elevation: ft Ground Level: 47.8 ft Wellbore Plan W-19BL1PB1 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (°) (°) (nT) bggm2007 10/20/2008 22.80 80.88 57,665 Design Plan W-19BL1PB1 Wp 7 Audit Notes: Version: 1 Phase: PLAN Tie On Depth: 10,540.0 Vertical Section: Depth From(ND) +N/-S +E/-W Direction (ft) (ft) (ft) r) 28.5 0.0 0.0 349.08 Plan Sections i I Measured Vertical ND Dogleg Build Turn Depth Inclination Azimuth Depth System +N/-S +E/-W Rate Rate Rate Tool Face (ft) (°) (°) (ft) ft (ft) (ft) (°I100ft) (°/100ft) (°/100ft) (°) 10,540.0 46.99 332.77 8,822.6 8,741.2 4,339.3 -1,959.5 0.00 0.00 0.00 0.00 10,590.0 47.80 340.85 8,856.5 8,775.1 4,373.1 -1,974.0 12.00 1.62 16.16 85.00 10,948.0 90.00 10.00 8,984.9 8,903.5 4,695.1 -1,987.2 13.88 11.79 8.14 39.71 11,348.0 90.00 57.74 8,984.9 8,903.5 5,017.7 -1,770.7 11.93 0.00 11.93 90.00 12,148.0 90.00 153.74 8,984.9 8,903.5 4,825.2 -1,087.7 12.00 0.00 12.00 90.00 12,408.0 90.00 153.74 8,984.9 8,903.5 4,592.1 -972.6 0.00 0.00 0.00 0.00 12,658.0 120.00 153.74 8,920.9 8,839.5 4,378.0 -867.0 12.00 12.00 0.00 0.00 12,753.8 120.00 153.74 8,873.0 8.791.6 4,303.5 -830.3 0.00 0.00 0.00 0.00 5/4/2010 3:36:26PM Page 2 COMPASS 2003.16 Build 71 • Sperry Drilling HALLIBURTC111 Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Project: Prudhoe Bay MD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1PB1 Design: Plan W-19BL1PB1 Wp 7 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) 8,741.22 10,540.0 46.99 332.77 8,822.6 8,741.2 4,339.3 -1,959.5 5,963,870.19 610,025.24 1.85 4,631.96 KOP Start DLS 12/13°TFO 85.00 10,590.0 47.80 340.85 8,856.5 8,775.1 4,373.1 -1,974.0 5,963,903.75 610,010.29 12.00 4,667.87 10,600.0 48.88 342.02 8,863.1 8,781.7 4,380.2 -1,976.4 5,963,910.80 610,007.80 13.88 4,675.27 10,700.0 60.14 352.03 8,921.2 8,839.8 4,459.4 -1,994.1 5,963,989.68 609,988.91 13.88 4,756.35 10,800.0 72.00 359.94 8,961.8 8,880.4 4,550.3 -2,000.2 5,964,080.51 609,981.46 13.88 4,846.80 10,900.0 84.13 6.84 8,982.4 8,901.0 4,647.7 -1,994.3 5,964,177.99 609,985.91 13.88 4,941.33 10,948.0 90.00 10.00 8,984.9 8,903.5 4,695.1 -1,987.2 5,964,225.48 609,992.22 13.88 4,986.53 11,000.0 90.00 16.21 8,984.9 8,903.5 4,745.7 -1,975.5 5,964,276.26 610,003.25 11.93 5,034.01 11,100.0 90.00 28.14 8,984.9 8,903.5 4,838.2 -1,937.8 5,964,369.25 610,039.54 11.93 5,117.63 11,200.0 90.00 40.07 8,984.9 8,903.5 4,920.8 -1,881.8 5,964,452.71 610,094.26 11.93 5,188.18 11,300.0 90.00 52.01 8,984.9 8,903.5 4,990.1 -1,810.0 5,964,523.06 610,165.07 11.93 5,242.61 11,348.0 90.00 57.74 8,984.9 8,903.5 5,017.7 -1,770.7 5,964,551.25 610,203.89 11.93 5,262.28 11,400.0 90.00 63.98 8,984.9 8,903.5 5,043.0 -1,725.3 5,964,577.23 610,248.90 12.00 5,278.53 11,500.0 90.00 75.98 8,984.9 8,903.5 5,077.2 -1,631.5 5,964,612.80 610,342.16 12.00 5,294.33 11,600.0 90.00 87.98 8,984.9 8,903.5 5,091.1 -1,532.7 5,964,628.20 610,440.77 12.00 5,289.28 11,700.0 90.00 99.98 8,984.9 8,903.5 5,084.2 -1,433.1 5,964,622.76 610,540.43 12.00 5,263.62 11,800.0 90.00 111.98 8,984.9 8,903.5 5,056.7 -1,337.2 5,964,596.72 610,636.79 12.00 5,218.47 11,900.0 90.00 123.98 8,984.9 8,903.5 5,009.9 -1,249.0 5,964,551.22 610,725.62 12.00 5,155.79 12,000.0 90.00 135.98 8,984.9 8,903.5 4,945.8 -1,172.5 5,964,488.24 610,803.05 12.00 5,078.33 12,100.0 90.00 147.98 8,984.9 8,903.5 4,867.1 -1,111.0 5,964,410.54 610,865.69 12.00 4,989.47 12,148.0 90.00 153.74 8,984.9 8,903.5 4,825.2 -1,087.7 5,964,368.99 610,889.68 12.00 4,943.90 End Directional at 12148.0'MD 12,200.0 90.00 153.74 8,984.9 8,903.5 4,778.6 -1,064.7 5,964,322.71 610,913.38 0.00 4,893.75 12,300.0 90.00 153.74 8,984.9 8,903.5 4,688.9 -1,020.4 5,964,233.71 610,958.96 0.00 4,797.32 12,400.0 90.00 153.74 8,984.9 8,903.5 4,599.2 -976.2 5,964,144.71 611,004.54 0.00 4,700.88 12,408.0 90.00 153.74 8,984.9 8,903.5 4,592.1 -972.6 5,964,137.59 611,008.18 0.00 4,693.17 Start Build 12.00 12,500.0 101.04 153.74 8,976.0 8,894.6 4,510.1 -932.2 5,964,056.22 611,049.85 12.00 4,604.99 12,600.0 113.04 153.74 8,946.8 8,865.4 4,424.5 -889.9 5,963,971.28 611,093.35 12.00 4,512.96 12,658.0 120.00 153.74 8,920.9 8,839.5 4,378.0 -867.0 5,963,925.12 611,116.99 12.00 4,462.94 End Directional at 12658.0'MD 12,700.0 120.00 153.74 8,899.9 8,818.5 4,345.4 -850.9 5,963,892.75 611,133.57 0.00 4,427.87 12,753.8 120.00 153.74 8,873.0 8,791.6 4,303.6 -830.3 5,963,851.28 611,154.80 0.00 4,382.94 TD at 12753.8'MD-6.750"OH 5/4/2010 3:36:26PM Page 3 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 ND Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Project: Prudhoe Bay MD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Welibore: Plan W-19BL1PB1 Design: Plan W-19BL1PB1 Wp 7 Targets Target Name -hit/miss target Dip Angle Dip Dir. ND +N/-S +E/-W Northing Easting -Shape (°) (°) (ft) (ft) (ft) (ft) (ft) W-19B Flt 7 0.00 0.00 8,951.4 5,800.7 -3,383.3 5,965,310.00 608,580.00 -plan misses target center by 1736.9ft at 11100.011 MD(8984.9 TVD,4838.2 N,-1937.8 E) -Polygon Point 1 8,951.4 5,800.7 -3,383.3 5,965,310.00 608,580.00 Point 2 8,951.4 5,421.9 -3,468.9 5,964,930.00 608,500.00 W-19BL1 T1 rev 1 0.00 0.00 9,011.4 4,520.0 -1,000.1 5,964,065.13 610,981.78 -plan misses target center by 63.7ft at 12457.7ft MD(8982.3 TVD,4547.5 N,-950.6 E) -Point W-19B Flt 301 0.00 0.00 8,921.4 4,688.9 -599.3 5,964,240.00 611,380.00 -plan misses target center by 381.8ft at 12492.2ft MD(8977.5 TVD,4516.9 N,-935.5 E) -Polygon Point 1 8,921.4 4,688.9 -599.3 5,964,240.00 611,380.00 Point 2 8,921.4 4,060.1 -688.7 5,963,609.99 611,299.99 Point 3 8,921.4 3,681.6 -794.4 5,963,229.99 611,199.96 Point4 8,921.4 4,060.1 -688.7 5,963,609.99 611,299.99 W-19B Flt 1 0.00 0.00 8,931.4 5,240.6 -1,041.1 5,964,785.00 610,930.00 -plan misses target center by 313.9ft at 11911.1 ft MD(8984.9 ND,5003.6 N,-1239.9 E) -Polygon Point 1 8,931.4 5,240.6 -1,041.1 5,964,785.00 610,930.00 Point 2 8,931.4 4,227.9 -1,206.3 5,963,770.00 610,780.00 Point 3 8,931.4 3,393.2 -1,573.8 5,962,930.00 610,425.00 Point 4 8,931.4 4,227.9 -1,206.3 5,963,770.00 610,780.00 W-19B Fit 5 0.00 0.00 8,961.4 5,885.4 -3,026.9 5,965,400.00 608,935.00 -plan misses target center by 1497.4ft at 11200.0ft MD(8984.9 TVD,4920.8 N,-1881.8 E) -Polygon Point 1 8,961.4 5,885.4 -3,026.9 5,965,400.00 608,935.00 Point 2 8,961.4 5,238.3 -3,231.6 5,964,750.00 608,740.00 W-19BL1 T1 0.00 0.00 9,011.4 4,503.9 -932.1 5,964,050.00 611,050.00 -plan misses target center by 35.9ft at 12500.0ft MD(8976.0 TVD,4510.1 N,-932.2 E) -Point W-19B Flt 1 rev 1 FLT 298 0.00 0.00 8,921.4 4,824.6 -977.3 5,964,370.00 611,000.00 -plan misses target center by 117.3ft at 12197.4ft MD(8984.9 TVD,4780.9 N,-1065.8 E) -Polygon Point 1 8,921.4 4,824.6 -977.3 5,964,370.00 611,000.00 Point2 8,921.4 4,365.1 -1,014.2 5,963,910.04 610,969.96 Point 3 8,921.4 3,539.3 -1,311.5 5,963,079.97 610,685.03 Point 4 8,921.4 4,365.1 -1,013.3 5,963,910.05 610,970.86 W-19B Flt 8 0.00 0.00 8,931.4 6,945.2 -4,681.4 5,966,435.00 607,265.00 -plan misses target center by 3455.3ft at 11200.0ft MD(8984.9 TVD,4920.8 N,-1881.8 E) -Polygon Point 1 8,931.4 6,945.2 -4,681.4 5,966,435.00 607,265.00 Point 2 8,931.4 6,231.4 -4,432.0 5,965,725.00 607,525.00 Point 3 8,931.4 5,083.6 -4,934.2 5,964,570.00 607,040.00 Point 4 8,931.4 4,184.9 -5,027.7 5,963,670.00 606,960.00 Point 5 8,931.4 5,083.6 -4,934.2 5,964,570.00 607,040.00 Point 6 8,931.4 6,231.4 -4,432.0 5,965,725.00 607,525.00 W-19B Flt 2 0.00 0.00 8,931.4 5,982.7 -1,840.2 5,965,515.00 610,120.00 I I -plan misses target center by 930.8ft at 11500.0ft MD(8984.9 TVD,5077.2 N,-1631.5 E) -Polygon Point 1 8,931.4 5,982.7 -1,840.2 5,965,515.00 610,120.00 Point 2 8,931.4 4,501.4 -1,772.3 5,964,035.00 610,210.00 Point 3 8,931.4 3,971.2 -1,770.2 5,963,505.00 610,220.00 Point 4 8,931.4 3,539.8 -2,016.7 5,963,070.00 609,980.00 Point 5 8,931.4 3,971.2 -1,770.2 5,963,505.00 610,220.00 5/4/2010 3:36:26PM Page 4 COMPASS 2003.16 Build 71 Sperry Drilling HALLIBURTOS Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska ND Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Project: Prudhoe Bay MD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1PB1 Design: Plan W-19BL1PB1 Wp 7 Point 6 8,931.4 4,501.4 -1,772.3 5,964,035.00 610,210.00 W-19B Flt 4 0.00 0.00 8,931.4 5,887.4 -2,491.8 5,965,410.00 609,470.00 -plan misses target center by 1128.2ft at 11300.0ft MD(8984.9 TVD,4990.1 N,-1810.0 E) -Polygon Point 1 8,931.4 5,887.4 -2,491.8 5,965,410.00 609,470.00 Point 2 8,931.4 5,327.8 -2,530.1 5,964,850.00 609,440.00 Point 3 8,931.4 4,847.4 -2,507.3 5,964,370.00 609,470.00 Point4 8,931.4 4,154.1 -2,632.7 5,963,675.00 609,355.00 Point 5 8,931.4 3,845.9 -2,752.3 5,963,365.00 609,240.00 Point6 8,931.4 3,341.8 -2,824.8 5,962,860.00 609,175.00 Point 7 8,931.4 3,845.9 -2,752.3 5,963,365.00 609,240.00 Point8 8,931.4 4,154.1 -2,632.7 5,963,675.00 609,355.00 Point 9 8,931.4 4,847.4 -2,507.3 5,964,370.00 609,470.00 Point 10 8,931.4 5,327.8 -2,530.1 5,964,850.00 609,440.00 W-19B Flt 3 0.00 0.00 8,921.4 5,901.0 -2,401.6 5,965,425.00 609,560.00 -plan misses target center by 1087.Oft at 11340.311 MD(8984.9 TVD,5013.5 N,-1777.2 E) -Polygon Point 1 8,921.4 5,901.0 -2,401.6 5,965,425.00 609,560.00 Point 2 8,921.4 5,510.8 -2,392.4 5,965,035.00 609,575.00 ' Point 3 8,921.4 5,361.1 -2,409.6 5,964,885.00 609,560.00 Point 4 8,921.4 4,760.8 -2,403.6 5,964,285.00 609,575.00 Point 5 8,921.4 4,347.4 -2,514.7 5,963,870.00 609,470.00 Point 6 8,921.4 4,760.8 -2,403.6 5,964,285.00 609,575.00 Point 7 8,921.4 5,361.1 -2,409.6 5,964,885.00 609,560.00 Point 8 8,921.4 5,510.8 -2,392.4 5,965,035.00 609,575.00 W-19B Flt 9 0.00 0.00 8,981.4 6,231.4 -4,432.0 5,965,725.00 607,525.00 -plan misses target center by 2857.0ft at 11100.0ft MD(8984.9 TVD,4838.2 N,-1937.8 E) -Polygon Point 1 8,981.4 6,231.4 -4,432.0 5,965,725.00 607,525.00 Point 2 8,981.4 5,853.8 -2,922.4 5,965,370.00 609,040.00 Point 3 8,981.4 5,901.0 -2,401.6 5,965,425.00 609,560.00 Point4 8,981.4 5,982.7 -1,840.2 5,965,515.00 610,120.00 Point 5 8,981.4 5,539.3 393.6 5,965,105.00 612,360.00 Point6 8,981.4 5,982.7 -1,840.2 5,965,515.00 610,120.00 Point 7 8,981.4 5,901.0 -2,401.6 5,965,425.00 609,560.00 Point 8 8,981.4 5,853.8 -2,922.4 5,965,370.00 609,040.00 W-19B Flt 6 0.00 0.00 8,951.4 5,669.0 -3,275.2 5,965,180.00 608,690.00 -plan misses target center by 1574.8ft at 11100.0ft MD(8984.9 TVD,4838.2 N,-1937.8 E) -Polygon Point 1 8,951.4 5,669.0 -3,275.2 5,965,180.00 608,690.00 Point 2 8,951.4 5,360.1 -3,349.8 5,964,870.00 608,620.00 Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (") (") 10,435.6 8,748.4 9 5/8" 9-5/8 12-1/4 12,753.8 8,873.0 6.750"OH 4-1/2 6-3/4 2,682.9 2,677.7 13 3/8" 13-3/8 17-1/2 5/4/2010 3:36:26PM Page 5 COMPASS 2003.16 Build 71 Sperry Drilling HALLIBURTOi J Standard Proposal Report Database: .Sperry EDM.16 PRD Local Co-ordinate Reference: Well W-19 Company: BP-Alaska TVD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Project: Prudhoe Bay MD Reference: W-19B Plan 7-ES @ 81.4ft(Nabors 7ES) Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1PB1 Design: Plan W-19BL1PB1 Wp 7 Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +E/-W (ft) (ft) (ft) (ft) Comment 10,540.0 8,822.6 4,339.3 -1,959.5 KOP Start DLS 12/13°TFO 85.00 12,148.0 8,984.9 4,373.1 -1,974.0 End Directional at 12148.0'MD 12,408.0 8,984.9 4,695.1 -1,987.2 Start Build 12.00 12,658.0 8,920.9 5,017.7 -1,770.7 End Directional at 12658.0'MD 12,753.8 8,873.0 4,825.2 -1,087.7 TD at 12753.8'MD 5/4/2010 3:36:26PM Page 6 COMPASS 2003.16 Build 71 North America - ALASKA - BP Prudhoe Bay PB W Pad W-19 Plan W-19BL1 PB1 W-19BL1 PB1 Wp7.0 Anticollision Summary Report 10 May, 2010 BPPASSPORT Anticollision Summary Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay ND Reference: W-19B Plan @ 81.40ft(Nabors 7ES) Reference Site: PB W Pad MD Reference: W-19B Plan @ 81.40ft(Nabors 7ES) 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-19BL1 PB1 Database: EDM.16-Anc Prod-WH24P Reference Design: W-19BL1PB1 Wp7.0 Offset ND Reference: Offset Datum Reference W-19BL1PB1 Wp7.0 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+ 100/1000 of refer( Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 10,540.00 to 12,753.80ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,472.53ft Error Surface: Elliptical Conic Warning Levels Evaluated at: 0.00 Sigma Survey Tool Program Date 5/10/2010 From To (ft) (ft) Survey(Wellbore) Tool Name Description 28.75 3,081.95 1 :Schlumberger GCT multishot(W-19) GCT-MS Schlumberger GCT multishot 3,081.95 3,293.00 W-19B Wp15(Plan W-19B) INC+TREND Inclinometer+known azi trend 3,293.00 10,435.60 W-19B Wp15(Plan W-19B) MWD+IFR+MS MWD+IFR+Multi Station 10,435.60 10,540.00 W-19B Wp15(Plan W-19B) MWD+IFR+MS MWD+IFR+Multi Station 10,540.00 12,753.80 W-19BL1PB1 Wp7.0(Plan W-19BL1PB1) MWD+IFR+MS MWD+IFR+Multi Station Summary Reference Offset Distance Measured Measured Between Between Site Name Depth Depth Centres Ellipses Separation Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) Factor Warning PB W Pad Plan W-202-Plan W-202 OBd-Plan#6 W-202 OBd Out of range Plan W-202-Plan W-202L1 OBc-Plan#6 W-202L1 OB Out of range Plan W-202-Plan W-202L2 OBa-Plan#6 W-202L2 OB Out of range Plan W-59-Plan W-59-Plan#1 W-59 Out of range Plan W-70-Plan W-70-Plan#1 W-70 12,753.80 10,450.00 596.29 394.64 2.957 CC,ES,SF W-16_DIMS-W-16-W-16 Out of range W-16_DIMS-W-16L1 -W-16L1 Out of range W-17_DIMS-W-17-W-17 Out of range W-17_DIMS-W-17-W-17 Out of range W-19-Plan W-19B-W-19B Wp15 10,543.00 10,550.00 0.01 -0.66 0.014 Minor 1/50,CC,ES,SF W-19-Plan W-19BL1 -W-19BL1 Wp14 12,442.98 12,450.00 0.50 -0.21 0.702 CC,ES,SF W-19-W-19-W-19 11,194.38 11,075.00 260.05 91.26 1.541 CC W-19-W-19-W-19 11,200.00 11,100.00 260.42 90.24 1.530 ES,SF W-19-W-19A-W-19A 11,090.32 10,975.00 300.77 124.22 1.704 CC W-19-W-19A-W-19A 11,100.00 11,000.00 301.85 123.16 1.689 ES,SF W-19-W-19AL1 -W-19AL1 11,090.19 10,975.00 300.84 124.26 1.704 CC W-19-W-19AL1 -W-19AL1 11,100.00 11,000.00 302.09 123.34 1.690 ES,SF W-19-W-19AL1 PB1 -W-19AL1 PB1 11,090.10 10,975.00 300.85 124.25 1.704 CC W-19-W-19AL1 PB1 -W-19AL1 PB1 11,100.00 11,000.00 302.10 123.35 1.690 ES,SF W-19-W-19AL1 PB2-W-19AL1 PB2 11,090.19 10,975.00 300.84 124.26 1.704 CC W-19-W-19AL1 PB2-W-19AL1 PB2 11,100.00 11,000.00 302.09 123.34 1.690 ES,SF W-204-W-204-W-204 Out of range W-204-W-204L1 -W-204L1 Out of range W-204-W-204L2-W-204L2 Out of range W-23A_DIMS-W-23A-W-23A Out of range W-29-W-29-W-29 10,575.00 10,800.00 1,074.65 812.40 4.098 CC,ES,SF CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 5/10/2010 4:58:04PM Page 2 COMPASS 2003.16 Build 71 BPPASSPORT Anticollision Summary Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well W-19 Project: Prudhoe Bay TVD Reference: W-198 Plan @ 81.40ft(Nabors 7ES) Reference Site: PB W Pad MD Reference: W-198 Plan @ 81.40ft(Nabors 7ES) 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-19BL1 PB1 Database: EDM.16-Anc Prod-WH24P Reference Design: W-19BL1PB1 Wp7.0 Offset TVD Reference: Offset Datum Reference Depths are relative to W-19B Plan @ 81.40ft(Nabors 7ES) 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 Plot I , 1600 I ' I I I I I I I I I I I I I 1 1 I I I I I I I _ _ I I I I I I I I I I I I I I I I I C 1200 ' I I I I I I 0 1 I I I .773 I I 1 i I I ; I S? - J al I I I I I I C/3 I I I 1 a) I I I I I I a) 800 C> I I I 1 .. I I I I { I 4 I I I 1 I 1 I I 1 I 2 J J J J - J _ _ m 1 I I 1 I 1 I 1 II. I I I I 1 I 400 I ,i I I I I I k I I I I I I I __J J J _J _ _ _ _ J__ __ J _ _ 0 I I I I I I I 1 I I I I 1 1 I I I I I I I I I I I I I 0 2500 5000 7500 10000 12500 15000 M easured Depth LEGEND Plan W-70,Plan W-70.Plan NI W-70V0 -. - W-19.W-19.W-10 V3 W-19,W-19AL1P91.W-19AL1PB1V3 W-19,PIan W-19B.W-1913Wp15 VI W-10.W-19A,W-19AV3 $— W-19,W-19AL1PB2,W-19AL1PB2V2 s W-19,Plan W-19BLi.W-19BL1 Wp14V1 W-19,W-19AL1.W-19AL1 V4 W-29.W-29.W-29 V3 CC-Min centre to center distance or covergent point,SF-min separation factor,ES-min ellipse separation 5/10/2010 4:58:04PM Page 3 COMPASS 2003.16 Build 71 0 m a OW w O 0 el m O '__' N r d 6 g8N c �3 ,�:- ._ r 0. =, U O.-t-O D 7�O 1. dl, 0T Fd H o oM , d aS ,M0 D, , -� ,p_ go �SO 3 00000000 L OOr00000 O � , , �� 4 ` ,6 U O a M-to i ell \ t QOOmrn0OOO 000OOO U r,, c40- c 2 O 0 O� a 1.. _ � , ,� ° v . rnN°mQ o rn�r J� p _ .„,6,. cNroON A ,', � , wo mi n:c_, ---cri Om ci O co co i E V 0 +Oi oi =y C U J O y a N Co ” O comm.-.-OMv-M OOD OOOrfON O 10110%% Q OO " U ,,,, vvw . 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IIIIIIIIII III/IIIIIIIIIIIIIIIIIIIII iII II II IIIIIIIIIIIIIIIIIIII III [ IIIII IX2wo p p o WO-'LN 0 COO O N 0 b GUO O N 7 000 COO 8 0 V M O\ n a M O co N VNl -26-g. � a a a a M M M M N N N (ui/8 OSti)(+)gvoN/(-)q11ooS `00 0 a s C_N t0 U>1'U 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 @ 88.4ft(34.30KB+54.15GL D-14 F Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.46(34.30KB+54.15GL D-14 F Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1 Design: W-19BL1 Wp 14 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: 5,957,194.18ft Latitude: 70°17'31.506 N From: Map Easting: 609,919.18 ft Longitude: 149°6'36.343 W Position Uncertainty: 0.0 ft Slot Radius: 0" Grid Convergence: 0.84 ° Well W-19,W-19 Well Position +N/-S 0.0 ft Northing: 5,959,560.93 ft Latitude: 70°17'54.473 N +E/-W 0.0 ft Easting: 612,049.07 ft Longitude: 149°5'33.247 W Position Uncertainty 0.0 ft Wellhead Elevation: ft Ground Level: 47.8 ft Wellbore Plan W-19BL1 Magnetics Model Name Sample Date Declination Dip Angle Field Strength (0) (0) (nT) bggm2007 12/3/2008 22.73 80.88 57,668 Design W-19BL1 Wp 14 Audit Notes: Version: 1 Phase: PLAN Tie On Depth: 12,430.0 Vertical Section: Depth From(TVD) +NI-S +E/-W Direction (ft) (ft) (ft) (0) 35.5 0.0 0.0 14.08 Plan Sections Measured Vertical ND Dogleg Build Turn Depth Inclination Azimuth Depth System +N/-S +E/-W Rate Rate Rate Tool Face (ft) (0) (0) (ft) ft (ft) (ft) (°/100ft) (°/100ft) (°/100ft) (0) 12,430.0 91.80 153.74 8,991.6 8,903.2 4,578.6 -966.0 0.00 0.00 0.00 0.00 12,480.0 90.80 152.00 8,990.5 8,902.1 4,534.2 -943.2 4.00 -2.00 -3.46 -120.00 12,651.0 105.00 137.00 8,966.9 8,878.5 4,396.7 -845.7 12.00 8.30 -8.77 -45.49 12,751.0 105.00 137.00 8,941.0 8,852.6 4,326.1 -779.8 0.00 0.00 0.00 0.00 12,876.0 90.00 137.00 8,924.8 8,836.4 4,235.7 -695.5 12.00 -12.00 0.00 180.00 13,026.0 90.00 137.00 8,924.8 8,836.4 4,126.0 -593.2 0.00 0.00 0.00 0.00 13,580.1 89.48 112.07 8,927.3 8,838.9 3,814.4 -140.4 4.50 -0.09 -4.50 -91.24 14,116.5 89.48 112.07 8,932.2 8,843.8 3,612.8 356.6 0.00 0.00 0.00 0.00 14,595.9 68.00 110.00 9,025.3 8,936.9 3,444.7 792.8 4.50 -4.48 -0.43 -174.76 14,670.9 68.00 110.00 9,053.4 8,965.0 3,421.0 858.1 0.00 0.00 0.00 0.00 5/4/2010 3:52:58PM Page 2 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 @ 88.4ft(34.30KB+54.15GL D-14 F Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.4ft(34.30KB+54.15GL D-14 F Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1 Design: W-19BL1 Wp 14 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) 8,903.24 12,430.0 91.80 153.74 8,991.6 8,903.2 4,578.6 -966.0 5,964,124.27 611,015.01 6.00 4,206.03 KOP Start DLS 4.00 TFO-120.00 12,480.0 90.80 152.00 8,990.5 8,902.1 4,534.2 -943.2 5,964,080.13 611,038.46 4.00 4,168.43 Start DLS 12.00 TFO-45.49 12,500.0 92.48 150.29 8,989.9 8,901.5 4,516.6 -933.5 5,964,062.75 611,048.38 12.00 4,153.77 12,600.0 100.83 141.60 8,978.3 8,889.9 4,434.5 -878.1 5,963,981.42 611,105.06 12.00 4,087.56 12,651.0 105.00 137.00 8,966.9 8,878.5 4,396.7 -845.7 5,963,944.20 611,138.02 12.00 4,058.87 End Directional at 12651.0'MD 12,700.0 105.00 137.00 8,954.3 8,865.9 4,362.2 -813.4 5,963,910.10 611,170.79 0.00 4,033.17 12,751.0 105.00 137.00 8,941.0 8,852.6 4,326.1 -779.8 5,963,874.55 611,204.94 0.00 4,006.38 Start DLS 12.00 TFO 180.00 12,800.0 99.13 137.00 8,930.8 8,842.4 4,291.1 -747.1 5,963,840.04 611,238.09 12.00 3,980.37 12,876.0 90.00 137.00 8,924.8 8,836.4 4,235.7 -695.5 5,963,785.44 611,290.55 12.00 3,939.22 End Directional at 12876.0'MD 12,900.0 90.00 137.00 8,924.8 8,836.4 4,218.2 -679.2 5,963,768.17 611,307.15 0.00 3,926.20 13,000.0 90.00 137.00 8,924.8 8,836.4 4,145.1 -611.0 5,963,696.07 611,376.42 0.00 3,871.86 13,026.0 90.00 137.00 8,924.8 8,836.4 4,126.0 -593.2 5,963,677.29 611,394.47 0.00 3,857.71 Start DLS 4.50 TFO-91.24 13,100.0 89.93 133.67 8,924.8 8,836.4 4,073.4 -541.2 5,963,625.48 611,447.22 4.50 3,819.34 13,200.0 89.83 129.17 8,925.0 8,836.6 4,007.3 -466.3 5,963,560.47 611,523.16 4.50 3,773.42 13,300.0 89.74 124.67 8,925.4 8,837.0 3,947.2 -386.3 5,963,501.61 611,603.96 4.50 3,734.61 13,400.0 89.64 120.18 8,926.0 8,837.6 3,893.6 -302.0 5,963,449.27 611,689.13 4.50 3,703.15 13,500.0 89.55 115.68 8,926.7 8,838.3 3,846.8 -213.6 5,963,403.78 611,778.14 4.50 3,679.23 13,580.1 89.48 112.07 8,927.3 8,838.9 3,814.4 -140.4 5,963,372.48 611,851.79 4.50 3,665.61 End Directional at 13580.1'MD 13,600.0 89.48 112.07 8,927.5 8,839.1 3,806.9 -121.9 5,963,365.26 611,870.39 0.00 3,662.84 13,700.0 89.48 112.07 8,928.4 8,840.0 3,769.3 -29.3 5,963,329.07 611,963.59 0.00 3,648.93 13,800.0 89.48 112.07 8,929.3 8,840.9 3,731.7 63.4 5,963,292.88 612,056.80 0.00 3,635.03 13,900.0 89.48 112.07 8,930.3 8,841.9 3,694.2 156.0 5,963,256.69 612,150.01 0.00 3,621.12 14,000.0 89.48 112.07 8,931.2 8,842.8 3,656.6 248.7 5,963,220.50 612,243.22 0.00 3,607.22 14,100.0 89.48 112.07 8,932.1 8,843.7 3,619.0 341.4 5,963,184.31 612,336.43 0.00 3,593.31 14,116.5 89.48 112.07 8,932.2 8,843.8 3,612.8 356.6 5,963,178.35 612,351.77 0.00 3,591.02 Start DLS 4.50 TFO-174.76 14,200.0 85.73 111.73 8,935.7 8,847.3 3,581.7 434.1 5,963,148.38 612,429.64 4.50 3,579.67 14,300.0 81.25 111.31 8,947.0 8,858.6 3,545.2 526.5 5,963,113.32 612,522.57 4.50 3,566.80 1 14,400.0 76.77 110.89 8,966.1 8,877.7 3,509.9 618.0 5,963,079.36 612,614.64 4.50 3,554.80 14,500.0 72.29 110.45 8,992.8 8,904.4 3,475.9 708.2 5,963,046.70 612,705.28 4.50 3,543.75 14,595.9 68.00 110.00 9,025.3 8,936.9 3,444.7 792.8 5,963,016.80 612,790.31 4.50 3,534.10 End Directional at 14595.9'MD 14,600.0 68.00 110.00 9,026.9 8,938.5 3,443.4 796.4 5,963,015.55 612,793.94 0.00 3,533.71 14,670.9 68.00 110.00 9,053.4 8,965.0 3,421.0 858.1 5,962,994.00 612,856.00 0.00 3,526.93 TD at 14670.9'MD-W-19BL1 14 5/4/2010 3:52:58PM Page 3 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 @ 88.4ft(34.30KB+54.15GL D-14 F Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.4ft(34.30KB+54.15GL D-14 F Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1 Design: W-19BL1 Wp 14 Targets Target Name -hit/miss target Dip Angle Dip Dir. TVD +N/-S +E/-W Northing Easting -Shape (°) (°) (ft) (ft) (ft) (ft) (ft) base45P 0.00 0.00 8,971.4 4,323.6 -649.7 5,963,874.00 611,335.00 -plan misses target center by 103.8ft at 12839.3ft MD(8926.2 TVD,4262.5 N,-720.5 E) -Point W-19B Flt 301 0.00 0.00 8,928.4 4,688.9 -599.3 5,964,240.00 611,380.00 -plan misses target center by 379.8ft at 12551.1ft MD(8985.8 TVD,4473.4 N,-906.6 E) -Polygon Point 1 8,928.4 4,688.9 -599.3 5,964,240.00 611,380.00 Point 2 8,928.4 4,060.1 -688.7 5,963,609.99 611,299.99 Point 3 8,928.4 3,681.6 -794.4 5,963,229.99 611,199.96 Point4 8,928.4 4,060.1 -688.7 5,963,609.99 611,299.99 W-19BL1 T1 0.00 0.00 9,018.4 4,503.9 -932.1 5,964,050.00 611,050.00 -plan misses target center by 29.6ft at 12508.Oft MD(8989.5 TVD,4509.7 N,-929.5 E) -Point top fault 0.00 0.00 8,922.4 4,323.6 -649.7 5,963,874.00 611,335.00 -plan misses target center by 93.5ft at 12843.2ft MD(8925.9 ND,4259.7 N,-717.9 E) -Point W-198 Flt 1 rev 1 FLT 298 0.00 0.00 8,928.4 4,824.6 -977.3 5,964,370.00 611,000.00 -plan misses target center by 254.2ft at 12430.0ft MD(8991.6 TVD,4578.6 N,-966.0 E) -Polygon Point 1 8,928.4 4,824.6 -977.3 5,964,370.00 611,000.00 Point2 8,928.4 4,365.1 -1,014.2 5,963,910.04 610,969.96 Point 3 8,928.4 3,539.3 -1,311.5 5,963,079.97 610,685.03 Point4 8,928.4 4,365.1 -1,013.3 5,963,910.05 610,970.86 W-19BL1 T2 0.00 0.00 8,968.4 4,336.9 -671.5 5,963,887.00 611,313.00 -plan misses target center by 95.3ft at 12815.Oft MD(8928.7 ND,4280.2 N,-737.0 E) -Point W-19BL1 T3 0.00 0.00 8,935.4 3,639.5 488.3 5,963,207.00 612,483.00 -plan misses target center by 73.8ft at 14229.Oft MD(8938.2 ND,3571.0 N,460.9 E) -Point W-19BL1 Geopoly 0.00 0.00 9,018.4 4,503.9 -932.1 5,964,050.00 611,050.00 -plan misses target center by 29.6ft at 12508.0ft MD(8989.5 TVD,4509.7 N,-929.5 E) -Polygon Point 1 9,018.4 4,493.2 -1,233.2 5,964,034.88 610,749.15 Point 2 9,018.4 3,975.0 -824.5 5,963,522.87 611,165.44 Point 3 9,018.4 3,245.4 863.7 5,962,818.55 612,864.22 Point 4 9,018.4 3,507.6 955.4 5,963,082.04 612,951.98 Point 5 9,018.4 3,960.1 -16.0 5,963,519.97 611,974.03 Point 6 9,018.4 4,363.2 -687.1 5,963,912.98 611,297.05 Point 7 9,018.4 4,756.1 -953.1 5,964,301.92 611,025.29 Point 8 9,018.4 4,492.0 -1,238.1 5,964,033.55 610,744.25 W-19BL1 T4 0.00 0.00 9,053.4 3,421.0 858.1 5,962,994.00 612,856.00 -plan hits target center -Point Casing Points Measured Vertical Casing Hole Depth Depth Diameter Diameter (ft) (ft) Name (") C') 2,689.9 2,684.7 13 3/8" 13-3/8 17-1/2 14,670.9 9,053.4 4-1/2" 4-1/2 6-1/8 10,442.6 8,755.4 9 5/8" 9-5/8 12-1/4 5/4/2010 3:52:58PM Page 4 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 @ 88.4ft(34.30KB+54.15GL D-14 F Project: Prudhoe Bay MD Reference: W-19B Plan D-14 @ 88.48(34.30KB+54.15GL D-14 F Site: PB W Pad North Reference: True Well: W-19 Survey Calculation Method: Minimum Curvature Wellbore: Plan W-19BL1 Design: W-19BL1 Wp 14 Plan Annotations Measured Vertical Local Coordinates Depth Depth +N/-S +El-W (ft) (ft) (ft) (ft) Comment 12,430.0 8,991.6 4,578.6 -966.0 KOP Start DLS 4.00 TFO-120.00 12,480.0 8,990.5 4,534.2 -943.2 Start DLS 12.00 TFO-45.49 12,651.0 8,966.9 4,396.7 -845.7 End Directional at 12651.0'MD 12,751.0 8,941.0 4,326.1 -779.8 Start DLS 12.00 TFO 180.00 12,876.0 8,924.8 4,235.7 -695.5 End Directional at 12876.0'MD 13,026.0 8,924.8 4,126.0 -593.2 Start DLS 4.50 TFO-91.24 13,580.1 8,927.3 3,814.4 -140.4 End Directional at 13580.1'MD 14,116.5 8,932.2 3,612.8 356.6 Start DLS 4.50 TFO-174.76 14,595.9 9,025.3 3,444.7 792.8 End Directional at 14595.9'MD 14,670.9 9,053.4 3,421.0 858.1 TD at 14670.9'MD 5/4/2010 3:52:58PM Page 5 COMPASS 2003.16 Build 71 North America - ALASKA - BP Prudhoe Bay PB W Pad W-19 Plan W-19BL1 W-19BL1 Wp14 Anticollision Summary Report 10 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-19BL1 Database: EDM.16-Anc Prod-WH24P Reference Design: W-19BL1 Wp14 Offset TVD Reference: Offset Datum Reference W-19BL1 Wp14 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of referE Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 12,430.00 to 14,670.90ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,663.54ft 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 10,547.00 W-19B Wp15(Plan W-19B) MWD+IFR+MS MWD+IFR+Multi Station 10,547.00 12,430.00 W-19BL1PB1 Wp7.0(Plan W-19BL1PB1) MWD+IFR+MS MWD+IFR+Multi Station 12,430.00 14,670.90 W-19BL1 Wp14(Plan W-19BL1) MWD+IFR+MS MWD+IFR+Multi Station • it II 5/10/2010 4:46:42PM 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-19BL1 Database: EDM.16-Anc Prod-WH24P Reference Design: W-19BL1 Wp14 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 Out of range Plan W-70-Plan W-70-Plan#1 W-70 12,806.06 10,425.00 565.97 207.37 383.24 Pass-Major Risk W-15-W-15-W-15 Out of range W-15-W-15A-W-15A Out of range W-15-W-15PB1 -W-15PB1 Out of range W-15-W-15PB2-W-15PB2 Out of range W-16-W-16-W-16 Out of range W-16-W-16A-W-16A Out of range W-16-W-16APB1 -W-16APB1 Out of range 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 Out of range W-17-W-17A-W-17A Out of range 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 Out of range W-19-Plan W-19B-W-19B Wp15 12,430.00 10,225.00 1,066.08 22.86 1,045.18 Pass-Major Risk W-19-Plan W-19BL1PB1 -W-19BL1PB1 Wp7.0 12,432.00 12,425.00 0.01 0.48 -0.46 FAIL-Major Risk W-19-W-19-W-19 12,430.00 9,775.00 1,455.07 247.27 1,270.15 Pass-Major Risk W-19-W-19A-W-19A 12,430.00 9,750.00 1,465.60 247.04 1,281.49 Pass-Major Risk W-19-W-19AL1 -W-19AL1 12,430.00 9,750.00 1,465.60 247.04 1,281.49 Pass-Major Risk W-19-W-19AL1 PB1 -W-19AL1 PB1 12,430.00 9,750.00 1,465.60 247.04 1,281.49 Pass-Major Risk W-19-W-19AL1 PB2-W-19AL1 PB2 12,430.00 9,750.00 1,465.60 247.04 1,281.49 Pass-Major Risk W-20-W-20-W-20 Out of range W-200-W-200-W-200 Out of range W-200-W-200PB1 -W-200PB1 Out of range W-201 -W-201 -W-201 Out of range W-204-W-204-W-204 Out of range W-204-W-204L1 -W-204L1 Out of range W-204-W-204L2-W-204L2 Out of range W-204-W-204PB1 -W-204PB1 Out of range W-21 -Plan 6,W-21AL1 -Plan 6 Out of range W-21 -Plan 6,W-21AL1-01 -Plan 6 Out of range W-21 -W-21 -W-21 Out of range W-21 -W-21A-W-21A Out of range W-210-W-210-W-210 Out of range W-211 -W-211 -W-211 Out of range W-212-W-212-W-212 Out of range W-215-W-215-W-215 Out of range W-215-W-215PB1 -W-215PB1 Out of range W-22-W-22-W-22 Out of range W-23-W-23-W-23 14,661.47 9,625.00 398.77 189.41 315.02 Pass-Major Risk W-23-W-23A-W-23A 14,665.62 9,625.00 391.81 192.50 294.40 Pass-Major Risk W-23A_DIMS-W-23A-W-23A Out of range W-24-W-24-W-24 Out of range W-25-W-25-W-25 Out of range W-25-W-25A-W-25A Out of range W-27-Plan W-27B-Plan#1 Out of range W-27-W-27-W-27 Out of range 5/10/2010 4:46:42PM 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-19BL1 Database: EDM .16-Anc Prod-WH24P Reference Design: W-19BL1 Wp14 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-27A-W-27A Out of range W-29-W-29-W-29 Out of range W-30-W-30-W-30 Out of range W-31 -W-31 -W-31 Out of range W-31 -W-31A-W-31A Out of range W-32-W-32-W-32 13,270.76 10,225.00 622.18 208.05 427.86 Pass-Major Risk W-32-W-32A-W-32A 13,266.96 9,925.00 745.96 202.55 543.66 Pass-Major Risk W-32-W-32APB1 -W-32APB1 13,266.99 9,925.00 746.04 202.18 544.11 Pass-Major Risk W-56-W-56-W-56 Out of range 5/10/2010 4:46:42PM 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-198 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: O.00ft North Reference: True Reference Well: W-19 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore Plan W-19BL1 Database: EDM.16-Anc Prod-WH24P Reference Design: W-19BL1 Wp14 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 Plot , I , 1800 ' 1 I I 1 1 I I I 1 I I 1 1 I I I J_ _ __ _ J _ _ __ _1_ _ __ _ J 1 I I I I I I ii I C I I 1 1 I I I I ff I '1-=1 350 �y p I 1 I I I cr I I I I I l I a. I I I I C I I I I _ _ J_ _ _ ij J I _ _ ..O J J J J Ir, I I I I 1 I I 0- I i�I I 1 a) I I CI) 900 I a) I I I I I at{ I I I I y -..m. I I I 1 y., U I I I I I r) J J _1 J _ _ __ J__ __ _ J__ __ _ _ O I I I I I Hi I 1 I I 2 I 1 I 1 C I I I 1 I I Q) 450 I I I I I I C.) I I I I I I I 1 I I I I I I J J I J 1 I 1 I I I I IL E G E N D I I 1 I I 1 1 �1 I i I 1 j 202,P Ian W-2090 ,Plan N6W-2020Bc1A -- W-19,PIanW-19BL1P81,W-1sBLIP81Wp7DVI -6- W-215.W-215,W-215 V7 202,PIanW-202LABc,PlanMBW-20275Q'IcVO -0- W-$,I19,W-1s V3 7500 10000 a WA12W4 15PBi,W-215/3§4M 202,PbnW-202L20Ba,PbnMBW-202L20Ba\B . W-19,W-194Ireassarced Depth(2500Win) W-22,W-2 2.W-2 2 V2 213,PbnW-219,PbnM4W-219\.9 -9- W-1 5.W-19ALl.W-19)=.1 1 V4 -$- W-23,W-23,W-23V5 59,PIanW-59,PIanM1W-59UD W-15,W-19AL1PB1,W-19AL1PB1V3 W-23,W-23A,W-23AV8 70 Plan W-70,PIan001 W-70\D W-19,W-19AL1P82,W-19AL1PB2V2 -X- W-23A_DMS.W-23A,W-23AV0 r-15,W-15 V2 $ W-20,W-20,W-20\2 W-24,W-24,W-24 V2 r-15A,W-15AV12 -= 11V-200,W-200,W-200 V2 f W-25,W-2 5.W-2 5 V2 '-15PB1,W-15P81 VB -- W-200,W-200PB1,W-200P81 VII -9- W-25,W-25A,W-25AV0 .-15PB2,W-15P82 V2 W-201.W-201.W-201 V4 W-27,Pbn W-27B,PIan M1 V1 (-1 5,41-16 V4 - - W-204.W-204.W-204V2 -4- W-27,1111-27,W-27 V4 -15A,W-16AV4 -9-- W-204.W-204L1,W-204L1 VB W-27,W-27A,W-27AV4 '-it1PB1,W-18APB1 V2 -e- W-204,W-204L2.W-204L2VI3 W-29,W-2 0,W-2 0 V3 IMS,W-15,W-1BV0 W-204,W-204P 61,W-20 4P 01 V2 - W-30,W-30,W-30 V2 IIVt _ 5/10/2010 4:46:42PM Page 5 of 5 COMPASS 2003.16 Build 71 . a r C J O ,tt .O 4. O '_ N N 886 . 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File Number: 28263 di 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 28263 r?aP.._ Search for Status Plat Updates As of 05/24/2010 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: O11N Range: 012E Section: 15 Section Acres: 640 Search Plats Meridian: U Township: O11N Range: 012E Section: 16 Section Acres: 640 Meridian: U Township: O11N Range: 012E Section: 21 Section Acres: 640 Meridian: U Township: O11N 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... 5/24/2010 TRANSMITTAL LETTER CHECKLIST WELL NAME M/9$e> PTD# o?!O0,46.‘" Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: 7:3e/,/l D4 3 ' POOL: °!/D�GK'B,yV D/L 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 ReL/ AV- (If /P8 V last two digits in Permit No.o? E6—,API No. 50-G229- 66/00. 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 a co O) 0 a) O- N _N Q) 0 O N - c )) c Q C 0 a) 0 > L W u) '00 p E c 0) E O n 2 L rn o Ui L a 3 0 0 .3 o o m a 3 =._ in m 'D ao d =M O ,- C V) > r a) ,5 a .0 U a) CO a) C 2 co m = 0) ° = W O C °- 'o U) ] as co a O- O. 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U U L C @ C E d E N o o a) @ - 0 L c C " 0 C @ a a ° (n = 3 'O ° U) .0 o U @ C a) C 0 @ X ° c @ @ @ aai co @ E @ 3 c a) `0 0 @ @ — a) a _ a a 9 @ = c 0 @ O @ 0 c H W c 3 0 0 0 C . o o U N O u) o c • a) o o - ° @ a@ ui a E 0 c o a N n 0 7 0 0 0 .� .� @@ ° ° o c 0 > > 3 c c 0 �_) w w 0 3 _ ° E •0 m ai • m a55 a aai .0 a s a) x 7 0- 0. a`) a`) ca .) 3 E o o a I- I- 2 co -co @ -co O O .c ° °- a0) m ca '5 a@) 0 @ 0 U C a _i D Cr) 4_7. 000_ 0_ 0 a d z U (n U U U U a CC a CC o co m 0 - 2 a m 0) 0) U ur °" O N M V (0 r CO O O N M V' )1) (0 I' W C) O N M V O r W 0) Z E ,- N M V co CO N- 00 O N N N N N N N N N N M M (") M M CC) C) M C) C) 0 O co O @ 0 O a) O 0 O N i O C @ N N N U 0 IX COO O N 0) O N O N 00(n a °o « E Lo cn -a°) 'E N T 0 E .J- E d 0) 0 w- o E G U 0) a � 0 Q U 0 • d Q a Q IC < O Q Q Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. r r. Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Mon Jan 17 09:15: 48 2011 Reel Header Service name LISTPE Date 11/01/17 Origin STS Reel Name UNKNOWN Continuation Number 01 Previous Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Tape Header Service name LISTPE Date 11/01/17 Origin STS Tape Name UNKNOWN Continuation Number 01 Previous Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS # li WELL NAME: W-19BL1PB1 API NUMBER: 500292200673 OPERATOR: BP Exploration (Alaska) , Inc. LOGGING COMPANY: Sperry Drilling TAPE CREATION DATE: 17-JAN-11 JOB DATA MWD RUN 1 MWD RUN 2 MWD RUN 3 JOB NUMBER: -MW-0007409877 -MW-0007409877 -MW-0007409877 LOGGING ENGINEER: ARUN MENEZES ARUN MENEZES SHAWN POLAK OPERATOR WITNESS: BILL DECKER BILL DECKER JOEY LEBLANC MWD RUN 12 MWD RUN 13 MAD RUN 13 JOB NUMBER: -MW-0007409877 -MW-0007409877 -MW-0007409877 LOGGING ENGINEER: SHAWN POLAK SHAWN POLAK SHAWN POLAK OPERATOR WITNESS: JOEY LEBLANC JOEY LEBLANC JOEY LEBLANC MWD RUN 14 MAD RUN 14 JOB NUMBER: -MW-0007409877 -MW-0007409877 LOGGING ENGINEER: SHAWN POLAK i SHAWN POLAK OPERATOR WITNESS: BLAIR NEUFEL ' BLAIR NEUFEL SURFACE LOCATION SECTION: 21 TOWNSHIP: 11N RANGE: 112E FNL: 696 FS L: „ FEL: 1181 FWL: ELEVATION (FT FROM MSL 0) a►U - 0(0G aU(o5 t t KELLY BUSHING: DERRICK FLOOR: 86.80 GROUND LEVEL: 47.83 WELL CASING RECORD OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 12.250 13.375 2692.0 2ND STRING 8 .500 9. 625 10528.0 3RD STRING PRODUCTION STRING REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH (TVD) . ONLY INVERT/ REVERT SECTIONS GREATER THAN 30' TVD ARE PRESENTED. 3. THIS WELLBORE WAS EFFECTED BY DRILLING OFF OF A WHIPSTOCK, THE TOP OF WHICH WAS AT 10619'MD/8969'TVD, WITHIN THE MWD RUN 3 INTERVAL OF W-19B PB1. THE WHIPSTOCK WAS POSITIONED, THE WINDOW WAS MILLED, AND A BIT OF RAT HOLE WAS DRILLED DURING MWD RUN 12. ONLY SROP DATA ARE PRESENTED FOR THIS RUN. 4 . MWD RUNS 1-3, 13, 14 COMPRISED DIRECTIONAL, DUAL GAMMA RAY (DGR) UTILIZING GEIGER-MUELLER TUBE DETECTORS, ELECTROMAGNETIC WAVE RESISTIVITY-PHASE 4 (EWR-P4) , AND DRILLSTRING DYNAMICS SENSOR (DDSr) . MWD RUNS 1, 14 ALSO INCLUDED AT-BIT INCLINATION (ABI) . MWD RUNS 1, 2, 13, 14 ALSO INCLUDED PRESSURE WHILE DRILLING (PWD) . MWD RUNS 13, 14 ALSO INCLUDED COMPENSATED THERMAL NEUTRON POROSITY (CTN) AND AZIMUTHAL LITHO-DENSITY (ALD) . MAD PASS DATA WERE ACQUIRED OVER TWO INTERVALS WHILE POOH: FROM TD TO ABOUT 12526'MD (ROTATED) , AND 10757 'MD-10440'MD (NOT ROTATED) . THESE DATA ARE PRESENTED SEPARATELY. 5. SHIFTING INSTRUCTIONS WERE PROVIDED VIA E-MAIL BY D. DORTCH (SAIC/BP) DATED 28 OCTOBER 2010, QUOTING AUTHORIZATION FROM JENNIFER FLIGHT (BP) . MERGED DIGITAL AND LOG DATA WERE SHIFTED TO THE W-19B MWD SDCL ABOVE THE KOP OF 10619'MD/8853'TVD. MAD DATA WERE CORRECTED (SHIFTED) TO THE MWD DATA. ANNOTATIONS AND LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTHS. 6. MWD RUNS 1-3, 12-14 REPRESENT WELL W-19B L1PB1 WITH API# 50-029- 22006-73. THIS WELL REACHED A TOTAL DEPTH (TD) OF 12877 'MD/8845' TVD. t C SROP = RATE OF PENETRATION WHILE DRILLING SGRC = DUAL GAMMA RAY COMBINED SEXP = EWR PHASE-4 9" 2 MHZ PHASE SHIFT RESISTIVITY SESP = EWR PHASE-4 15" 2 MHZ PHASE SHIFT RESISTIVITY SEMP = EWR PHASE-4 27" 2 MHZ PHASE SHIFT RESISTIVITY SEDP = EWR PHASE-4 39" 1 MHZ PHASE SHIFT RESISTIVITY SFXE = FORMATION EXPOSURE TIME (EWR-PHASE-4) TNPS = THERMAL NEUTRON POROSITY-SS MATRIX CTFA = SMOOTHED AVERAGE OF FAR DETECTOR'S COUNT RATE CTNA = SMOOTHED AVERAGE OF NEAR DETECTOR'S COUNT RATE SBD2 = BULK DENSITY COMPENSATED (RAPID SAMPLE) - LOW COUNT BIN SCO2 = DELTA-RHO (RAPID SAMPLE)- LOW COUNT BIN SNP2 = NEAR DETECTOR PE FACTOR (RAPID SAMPLE)- LOW COUNT BIN ALRPM = ALD RPM REFLECTING BIT-TO-SENSOR DISTANCE (NON-SLIDE INTERVALS) AHSI = ALD HOLE-SIZE INDICATOR (CALIPER) AN 'M' SUFFIX ON CURVE MNEMONICS DENOTES MAD PASS DATA PARAMETERS USED IN POROSITY LOG PROCESSING: HOLE SIZE: FIXED AT 6. 125 INCHES MUD WEIGHT: 8. 6 - 8 .75 PPG WHOLE MUD CHLORIDES: 11, 500 - 30, 000 PPM FORMATION WATER SALINITY: 11500 PPM CL FLUID DENSITY: 1.0 G/CC MATRIX DENSITY: 2. 65 G/CC LITHOLOGY: SANDSTONE ALL DATA CURVES ARE SMOOTHED TO A STEP OF 0.5 FT, WITH A WINDOW OF 0. 6 FT, EXCEPT FOR SROP AND SGRC. THESE CURVES ARE SMOOTHED WITH A 1. 1 FT WINDOW. GAP FILL IS SET TO 5 FT FOR ALL CURVES. File Header Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 2636.5 12807.0 RPM 2677 .0 12814.0 RPX 2677 .0 12814 .0 RPD 2677.0 12814 .0 RPS 2677.0 12814 .0 FET 2677.0 12814 .0 ROP 2689.5 12866.5 NCNT 10573.5 12778 .5 FCNT 10573.5 , 2778.5 NPHI 10573.5 12778.5 RHOB 10587 .0 12794 .0 DRHO 10587 .0 12794 .0 1 f PEF 10587. 0 12794 .0 CALN 11757.5 12424 .0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH GR 2647.5 2656.0 2663. 0 2673.5 2680.5 2690.0 2702.5 2711.0 2745.5 2754. 5 2748.0 2756. 0 2781.5 2791. 5 2799.0 2808.5 2806. 0 2816.0 2817 .5 2827.0 2824 .0 2831.0 2836.0 2844 . 5 2856.0 2866. 0 2893.5 2904 . 0 2926.5 2936. 5 2960.5 2969.5 2980.5 2988.0 2993.0 2999.0 3080.5 3091.5 3085.0 3096.0 3088.5 3098.0 3095.5 3106.5 3192.0 3201.5 3212.0 3221. 5 3219.0 3229.0 3249.0 3258 . 0 3278.0 3287 .0 3302.0 3310.0 3304 .5 3312.5 3322.0 3330.5 3360.5 3370. 0 3371.0 3381.0 3420.0 3429.5 3424 .5 3434 .0 3430.5 3441.5 3449.0 3461.0 3458 .5 3470.0 3466.0 3475.5 3477 .0 3484 . 5 3487.0 3496.0 3492.0 3501.5 3504 .0 3513.0 3520.0 3530.5 3527 .0 3535.0 3553.0 3563.0 3604 .0 3613.0 3638.5 3648.0 3663.0 3672.0 3679.0 3687.0 3684.5 3693.5 3691.5 3701. 0 3696.0 3705. 5 3698.0 3707 . 0 3704 .5 3714 .0 3727.5 3735. 0 3743.0 3752. 0 3751.5 3759.5 3765.5 3775.0 3767.5 3777 .5 3780.0 3789.5 3804 .5 3814 .5 3843.0 3851.0 3862.5 3871.5 3872.0 3881. 0 3881.0 3890.0 3886.0 3895.5 3901. 0 3910.5 3914 .0 3924 .5 3924 .5 3934 .5 3947.0 3957.5 3953.5 3964 .0 3961. 0 3972.0 3963. 5 3975.0 3969.5 3980.0 3976.0 3985. 5 3980.5 3990.5 3983. 0 3993.0 3995.5 4005.5 4000. 5 4010.5 4004 .0 4014 .0 4017.5 4027 .0 4023.5 4032.5 4052.5 4061. 5 4087 . 0 4098.0 4115. 0 4125. 0 4127 .5 4136.5 4220.0 4227.5 4268.5 4276.0 4307.5 4316.0 4329.5 4337 .5 4337.5 4347 .5 4361.5 4369.0 4365.0 4373.0 4367.5 4375.0 4370.5 4378.0 4378 .5 4385.5 4382.5 4391.5 4392.0 4401.0 4399.5 4407.0 4406.0 4413.0 4412.0 4420.0 4430.0 4437.5 4445.5 4452.5 4451.5 4457.5 4599.0 4606.5 _4.602. 0 4609.5 4605. 5 4613.0 4691. 5 4699.0 4798 .5 4806.0 4816.0 4824 .0 4840.0 4847.0 4944.0 4950.5 4958 .0 4965.0 4991.5 4997.0 5005.0 5013.5 5018.0 5026.0 5028 .5 5035.0 5082.5 5089.5 5111.0 5117.5 5139.5 5147 .0 5154 .5 5163.0 5174 .0 5180.5 5181.0 5187.5 5281.5 5287.0 5304 .0 5310.5 5386.5 5394 .5 5406.0 5414 . 0 5411.0 5419.5 5449.5 5456.5 5521.0 5526.0 5714 .0 5721.5 5778.0 5785. 0 5815.5 5823.0 5861.5 5868. 0 6011.5 6017.5 6071. 5 6077.5 6106. 5 6113.0 6179.5 6186.0 6194 .0 6201. 0 6215.5 6221.5 6335.0 6341.5 6534 . 5 6540.0 6677 .0 6682.5 6703.5 6709.5 6739.0 6744 .5 6764 .5 6769.0 6776.0 6781.5 6910.0 6915.5 6981.5 6987.0 6989.0 6994 .0 7012.5 7016.5 7084 .5 7091.0 7144 .5 7147 .5 7187.5 7189.5 7218.0 7222.5 7229.0 7233.5 7239.0 7244.0 7245.5 7250. 0 7265.5 7268 .5 7517.5 7521.5 7521.0 7524.5 7523.5 7527 .0 7555.5 7559.0 7611.0 7616.0 7630.0 7634 .0 7633.0 7637.5 7648.0 7651.5 7659.0 7662.5 7665.0 7668.0 7669.5 7673.5 7676.0 7680.0 7681.5 7685.0 7686.5 7689.5 2300.0 7705.5 7711.0 7714 .5 7731.0 7735.0 7737 .5 7741.0 7766.5 7769.5 7779.0 7783.0 7800.5 7804 .5 7807.5 7810.0 7810.0 7814 .0 7813.0 7817 .0 7850.0 7853.5 7875.5 7879.0 7885.5 7890.0 7895.0 7898.0 7919.5 7922.0 7927 .5 7931.0 8457 .5 8462.0 8465.0 8468.5 8559.0 8559.5 8626.0 8628 .5 8774 .5 8774 .0 8869.5 8867.0 9153.5 9155.5 9171.5 9171. 0 9250.0 9250.0 9537 .5 9537.5 9573.0 9572.5 9794 .0 9791. 5 9816.5 9816.0 9852.0 9852.0 9900.0 9899.5 9946.0 9944 .5 9975.5 9974 .5 10006.5 10005. 5 10341.0 10338 .5 10360.0 10357. 5 10473.0 10472.0 10498.0 10498.0 10502. 5 10504 .0 10516.0 10514 .5 10528.0 10527.0 10532.0 10532.5 10545.0 10545.5 10547.5 10547 . 5 10556.5 10556. 5 10565.0 10566.0 10573.0 10573.5 10582.5 10581.5 10585.0 10585.5 10589.0 10590.0 10597 .0 10597.0 10600. 0 10600.0 10601.5 10602.0 10604 .5 10604 .5 10608.5 10608.5 10614 .5 10613.5 10618 .0 10620.5 10623. 5 10628.5 10625. 5 10631.0 10627 .5 10633.5 10629.0 10636.5 10635.5 10643.0 10641.0 10649.0 10642.5 10650.5 10644 .5 10652.0 10648 .5 10658.0 10650.5 10659.5 10654 .0 10663.5 14658. 0 10668.0 10663.0 10673.0 10665.5 10675.5 10668.0 10678.0 10669. 5 10679.5 10673.0 10682.5 10676. 5 10685.5 10680.0 10689.0 10682.5 10691.0 10685.5 10694 .0 10698.5 10708.5 10701.0 10710.5 10703.0 10712.0 10711.0 10719.0 10735.0 10743.5 12509.5 12521.0 12515.5 12527 .0 12527 .0 12538.0 12535.5 12546.0 12539.0 12549.5 12548.0 12558.5 12553.5 12563.5 12557.5 12568.0 i 12866. 5 12877.0 $ MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE MWD 1 2645.0 9415.0 MWD 2 9415.0 10540.0 MWD 3 10540.0 10619.0 , MWD 12 10619.5 10652.0 MWD 13 10652.0 12234 .0 1 MWD 14 12234 .0 12877.0 $ REMARKS: MERGED MAIN PASS. $ Data Format Specification Record Data Record Type 0 1 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 _ Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 FCNT MWD CP30 4 1 68 4 2 NCNT MWD CP30 4 1 68 8 3 CALN MWD IN 4 1 68 12 4 RHOB MWD G/CC 4 1 68 16 5 DRHO MWD G/CC 4 1 68 20 6 RPD MWD OHMM 4 1 68 24 7 RPM MWD OHMM 4 1 68 28 8 RPS MWD OHMM 4 1 68 32 9 RPX MWD OHMM 4 1 68 36 10 FET MWD HR 4 1 68 40 11 GR MWD API 4 1 68 44 12 PEF MWD B/E 4 1 68 48 13 ROP MWD FPH 4 1 68 52 14 NPHI MWD PU 4 1 68 56 15 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2636.5 12866.5 7751.5 20461 2636.5 12866.5 FCNT MWD CP30 148.49 2253. 66 701. 989 4411 10573.5 12778.5 NCNT MWD CP30 15473.3 44947.8 29121. 4 4411 10573.5 12778.5 CALN MWD IN 5. 69 8.25 6.20677 767 11757 .5 12424 RHOB MWD G/CC 0.756 3.296 2.42545 4415 10587 12794 I DRHO MWD G/CC -2. 973 0.626 0.0797128 4415 10587 12794 RPD MWD OHMM 0.03 2000 8.81655 20195 2677 12814 RPM MWD OHMM 0.06 2000 8.73001 20195 2677 12814 RPS MWD OHMM 0.06 2000 6.36283 20195 2677 12814 RPX MWD OHMM 0.06 2000 4 .70011 20195 2677 12814 FET MWD HR 0. 18 693. 36 1. 97223 20195 2677 12814 GR MWD API 11. 66 442 81.3625 20342 2636.5 12807 PEF MWD B/E 1.05 14 .74 2.5176 4415 10587 12794 ROP MWD FPH 0.01 1229.46 160.064 20355 2689.5 12866.5 NPHI MWD PU 5.1 45.71 21. 6857 4411 10573.5 12778.5 First Reading For Entire File 2636.5 Last Reading For Entire File 12866.5 File Trailer Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.002 Physical EOF File Header Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation. . 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 EDITED MERGED MAD Depth shifted and clipped curves; all MAD runs merged using earliest passes. DEPTH INCREMENT: .5000 # I FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH NPHI 10358. 5 12782.5 FCNT 10358 .5 12782.5 NCNT 10358. 5 12782.5 DRHO 10372. 5 12797.5 PEF 10372.5 12797.5 RHOB 10372.5 12797 .5 GR 10378.5 12810.0 RAT 10435.0 12870.0 FET 10596.0 12817.0 RPD 10596.0 12817.0 RPX 10596.0 12817.0 RPS 10596.0 12817.0 RPM 10596.0 12817.0 # II MERGED DATA SOURCE PBU TOOL CODE MAD RUN NO. MAD PASS NO. MERGE TOP MERGE BASE MWD 13 1 10362.5 10757.5 MWD 14 1 12439.5 12877.0 REMARKS: MERGED MAD PASS. Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Unefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 FCNT MAD CP30 4 1 68 4 2 NCNT MAD CP30 4 1 68 8 3 RHOB MAD G/CC 4 1 68 12 4 DRHO MAD G/CC 4 1 68 16 5 RPD MAD OHMM 4 1 68 20 6 RPM MAD OHMM 4 1 68 24 7 RPS MAD OHMM 4 1 68 28 8 RPX MAD OHMM 4 1 68 32 9 PET MAD HR 4 1 68 36 10 GR MAD API 4 1 68 40 11 PEF MAD B/E 4 1 68 44 12 RAT MAD FPH 4 1 68 48 13 NPHI MAD PU 4 1 68 52 14 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10358.5 12870 11614 .3 5024 10358.5 12870 FCNT MAD CP30 96. 69 1781.33 554 .128 1340 10358.5 12782.5 NCNT MAD CP30 14068. 6 40196. 6 25175.3 1340 10358.5 12782.5 RHOB MAD G/CC 1.246 2. 955 2.36015 1339 10372.5 12797 .5 DRHO MAD G/CC -1. 664 0.34 -0. 160001 1339 10372.5 12797.5 RPD MAD OHMM 0. 5 2000 117.467 944 10596 12817 _ RPM MAD OHMM 0.09 2000 79. 4616 944 10596 12817 RPS MAD OHMM 0.24 2000 52. 611 944 10596 12817 RPX MAD OHMM 0.21 2000 14. 1724 944 10596 12817 FET MAD HR 3.76 762.8 51. 6922 944 10596 12817 GR MAD API 17.07 305 55. 156 1417 10378.5 12810 PEF MAD B/E 1. 14 15.56 5. 67526 1339 10372.5 12797.5 RAT MAD FPH 3.73 369.85 212.372 1334 10435 12870 NPHI MAD PU 3.59 68.23 27.4631 1331 10358.5 12782.5 First Reading For Entire File 10358.5 Last Reading For Entire File 12870 File Trailer Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.003 Physical EOF File Header Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.002 Comment Record FILE HEADER „+,;. FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. 1 1 BIT RUN NUMBER: 1 DEPTH INCREMENT: . 5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SGRC 2645.0 9362.0 SEMP 2686. 5 9354 .0 SFXE 2686.5 9354 .0 SEXP 2686. 5 9354 .0 SESP 2686.5 9354 .0 SEDP 2686.5 9354 .0 SROP 2698.5 9415.0 $ # LOG HEADER DATA DATE LOGGED: 06-AUG-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.47 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 9415.0 TOP LOG INTERVAL (FT) : 2645.0 BOTTOM LOG INTERVAL (FT) : 9415.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: .2 MAXIMUM ANGLE: 44 .8 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 237798 EWR4 ELECTROMAG. RESIS. 4 226997 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 12.250 DRILLER'S CASING DEPTH (FT) : 2692.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 11.00 MUD VISCOSITY (S) : 53.0 MUD PH: 9.4 MUD CHLORIDES (PPM) : 1200 FLUID LOSS (C3) : 3.2 ---RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.700 70.0 MUD AT MAX CIRCULATING TERMPERATURE: .820 152.0 MUD FILTRATE AT MT: 1.800 70.0 MUD CAKE AT MT: 1.200 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0„ Logging Direction Down Optical log depth units Feet Data Reference Point Undefined e . Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD010 OHMM 4 1 68 4 2 RPM MWD010 OHMM 4 1 68 8 3 RPS MWD010 OHMM 4 1 68 12 4 RPX MWD010 OHMM 4 1 68 16 5 FET MWD010 HR 4 1 68 20 6 ` GR MWD010 API 4 1 68 24 7 ROP MWD010 FPH 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2645 9415 6030 13541 2645 9415 RPD MWD010 OHMM 0.03 90.82 5.00207 13336 2686.5 9354 RPM MWD010 OHMM 0.06 92. 1 4 .82342 13336 2686.5 9354 RPS MWD010 OHMM 0.06 69.59 4.5054 13336 2686.5 9354 RPX MWD010 OHMM 0.06 26.01 3.91144 13336 2686.5 9354 FET MWD010 HR 0. 18 16. 12 1.24281 13336 2686.5 9354 GR MWD010 API 11. 66 325.03 90.2919 13435 2645 9362 _ ROP MWD010 FPH 0. 15 1229.46 188.034 13434 2698.5 9415 First Reading For Entire File 2645 Last Reading For Entire File 9415 File Trailer Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.004 Phys3eal EOF File Header Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.003 I I Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 2 DEPTH INCREMENT: .5000 FILE SUMMARY ,r VENDOR TOOL CODE START DEPTH STOP DEPTH SFXE 9354 .5 10479.0 SEMP 9354 .5 10479.0 SEXP 9354 .5 10479.0 SESP 9354 .5 10479.0 SEDP 9354 .5 10479.0 SGRC 9362. 5 10487.0 SROP 9415.5 10540.0 LOG HEADER DATA DATE LOGGED: 09-AUG-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.47 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10540.0 TOP LOG INTERVAL (FT) : 9415.0 BOTTOM LOG INTERVAL (FT) : 10540.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37.7 MAXIMUM ANGLE: 41.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 94503 EWR4 ELECTROMAG. RESIS. 4 186747 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 12.250 DRILLER'S CASING DEPTH (FT) : 2692.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 11.00 MUD VISCOSITY (S) : 47 .0 MUD PH: 9.5 MUD CHLORIDES (PPM) : 1200 FLUID LOSS (C3) : 3.0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1. 600 78.0 MUD AT MAX CIRCULATING TERMPERATURE: .780 166. 1 MUD FILTRATE AT MT: 1.200 78.0 MUD CAKE AT MT: 1.800 78.0 NEUTRON TOOL --MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel { DEPT FT 4 1 68 0 1 RPD MWD020 OHMM 4 1 68 4 2 RPM MWD020 OHMM 4 1 68 8 3 RPS MWD020 OHMM 4 1 68 12 4 RPX MWD020 OHMM 4 1 68 16 5 FET MWD020 HR 4 1 68 20 6 GR MWD020 API 4 1 68 24 7 ROP MWD020 FPH 4 1 68 28 8 . First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 9354 .5 10540 9947.25 2372 9354 .5 10540 RPD MWD020 OHMM 0.71 5.37 1.84266 2250 9354.5 10479 RPM MWD020 OHMM 0. 66 6.06 1.85228 2250 9354 .5 10479 RPS MWD020 OHMM 0.7 6.02 1.88353 2250 9354.5 10479 RPX MWD020 OHMM 0.74 5.78 1.85039 2250 9354 .5 10479 FET MWD020 HR 0. 39 31.13 3.79163 2250 9354 .5 10479 GR MWD020 API 65. 98 165.57 105. 6 2250 9362.5 10487 ROP MWD020 FPH 0.01 220.31 107.513 2250 9415.5 10540 First Reading For Entire File 9354.5 Last Reading For Entire File 10540 File Trailer Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.005 I Physical EOF File Header I Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.004 1 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. I BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SEXP 10479.5 10619.0 SESP 10479.5 10619.0 SFXE 10479.5 10619.0 SEMP 10479.5 10619.0 SEDP 10479.5 10619. 0 SGRC 10487.5 „10619.0 SROP 10540.5 10619.0 $ VIII LOG HEADER DATA DATE LOGGED: 14-AUG-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10619.0 TOP LOG INTERVAL (FT) : 10540.0 BOTTOM LOG INTERVAL (FT) : 10619.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37.0 MAXIMUM ANGLE: 37 . 6 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 149206 EWR4 ELECTROMAG. RESIS. 4 228269 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 8 .500 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8 .70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.5 MUD CHLORIDES (PPM) : 22000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .210 80.0 MUD AT MAX CIRCULATING TERMPERATURE: .090 194 .4 MUD FILTRATE AT MT: .240 80.0 MUD CAKE AT MT: .190 78.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD030 OHMM 4 1 68 4 2 RPM MWD030 OHMM 4 1 68 8 3 RPS MWD030 OHMM 4 1 6 12 4 RPX MWD030 OHMM 4 1 68 16 5 FET MWD030 HR 4 1 68 20 6 GR MWD030 API 4 1 68 24 7 ROP MWD030 FPH 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10479.5 10619 10549.3 280 10479.5 10619 RPD MWD030 OHMM 2.41 1965.43 124 .597 201 10479.5 10619 RPM MWD030 OHMM 0.23 1970.33 85. 4304 201 10479.5 10619 RPS MWD030 OHMM 0.23 1955.66 66. 1827 201 10479.5 10619 RPX MWD030 OHMM 0. 19 1285. 11 37.8127 201 10479.5 10619 FET MWD030 HR 1.27 131.55 31. 9054 201 10479.5 10619 GR MWD030 API 41. 49 442 121.589 264 10487.5 10619 ROP MWD030 FPH 8 .32 116.86 44 .4755 158 10540.5 10619 First Reading For Entire File 10479.5 Last Reading For Entire File 10619 File Trailer Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.006 Physical EOF File Header Service name STSLIB.006 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.005 Comment Record FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 12 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SROP 10619.5 10652.0 LOG HEADER DATA DATE LOGGED: 11-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10652.0 TOP LOG INTERVAL (FT) : 10619.0 BOTTOM LOG INTERVAL (FT) : 10652.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37. 6 MAXIMUM ANGLE: 37. 6 M TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6.125 DRILLER'S CASING DEPTH (FT) : 10528 .0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 47.0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 34000 FLUID LOSS (C3) : 7.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .800 70.0 MUD AT MAX CIRCULATING TERMPERATURE: .000 120.0 MUD FILTRATE AT MT: . 120 70.0 MUD CAKE AT MT: . 150 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : # �I REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name---Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD120 FPH 4 1 68 4 2 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10619.5 10652 10635.8 66 10619.5 10652 ROP MWD120 FPH 0.0778 7.4878 3.87685 66 10619.5 10652 First Reading For Entire File 10619.5 Last Reading For Entire File 10652 File Trailer Service name STSLIB.006 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.007 Physical EOF File Header Service name STSLIB.007 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.006 Comment Record FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 13 DEPTH INCREMENT: . 5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH CTFA 10574 .0 12154 .5 TNPS 10574 .0 12154 .5 CTNA 10574 .0 12154 .5 SCO2 10588.0 12170.0 SBD2 10588.0 12170.0 SNP2 10588 .0 12170.0 SEXP 10619.5 12189.5 SEDP 10619.5 12189.5 SEMP 10619.5 12189.5 SESP 10619.5 12189.5 SGRC 10619.5 12183.0 SFXE 10619.5 12189.5 SROP 10652.5 12234 .0 AHSI 11767.5 12170.0 LOG HEADER DATA DATE LOGGED: 15-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite --DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 12234 .0 TOP LOG INTERVAL (FT) : 10652.0 BOTTOM LOG INTERVAL (FT) : 12234 .0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37. 9 MAXIMUM ANGLE: 96.3 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 91360 CTN COMP THERMAL NEUTRON 275361 EWR4 Electromag Resis. 4 11261763 ALD Azimuthal Litho-Dens 193135 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : r 6. 125 DRILLER'S CASING DEPTH (FT) : 10528 .0 BOREHOLE CONDITIONS III MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 28000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .260 70.0 MUD AT MAX CIRCULATING TERMPERATURE: . 110 169. 6 MUD FILTRATE AT MT: .210 70.0 MUD CAKE AT MT: .160 70.0 . # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 I Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 FCNT MWD130 CP30 4 1 68 4 2 NCNT MWD130 CP30 4 1 68 8 3 CALN MWD130 IN 4 1 68 12 4 RHOB MWD130 G/CC 4 1 68 16 5 DRHO MWD130 G/CC 4 1 68 20 6 RPD MWD130 OHMM 4 1 68 24 7 RPM MWD130 OHMM 4 1 68 28 8 RPS MWD130 OHMM 4 1 68 32 9 RPX --MWD130 OHMM 4 1 68 36 10 FET MWD130 HR 4 1 68 40 11 GR MWD130 API 4 1 68 44 12 PEF MWD130 B/E 4 1 68 48 13 ROP MWD130 FPH 4 1 68 52 14 NPHI MWD130 PU 4 1 68 56 15 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10574 12234 11404 3321 10574 12234 FCNT MWD130 CP30 148. 49 2253. 66 721.892 3162 10574 12154 .5 NCNT MWD130 CP30 15473.3 44947 .8 29421.7 3162 10574 12154 .5 CALN MWD130 IN 5.75 8.25 6.29165 364 11767.5 12170 RHOB MWD130 G/CC 0.756 3.296 2. 42746 3165 10588 12170 DRHO MWD130 G/CC -2. 973 0.505 0.0623747 3165 10588 12170 RPD MWD130 OHMM 0. 44 2000 27 .0621 3141 10619.5 12189.5 RPM MWD130 OHMM 0.09 2000 29. 9351 3141 10619.5 12189.5 RPS MWD130 OHMM 0.22 20043 13.7201 3141 10619.5 12189.5 RPX MWD130 OHMM 0. 19 2000 7.27032 3141 10619.5 12189.5 FET MWD130 HR 0.28 693.36 1.42633 3141 10619.5 12189.5 GR MWD130 API 13.84 217.77 40. 1182 3128 10619.5 12183 PEF MWD130 B/E 1.05 14 .79 2.62312 3165 10588 12170 ROP MWD130 FPH 0. 98 543. 17 114 .83 3164 10652.5 12234 NPHI MWD130 PU 5. 1 45.71 21.206 3162 10574 12154 .5 First Reading For Entire File 10574 Last Reading For Entire File 12234 File Trailer Service name STSLIB.007 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.008 Physical EOF File Header Service name STSLIB.008 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 _ Maximum Physical Record65535 File Type LO Previous File Name STSLIB.007 Comment Record FILE HEADER FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 14 DEPTH INCREMENT: . 5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH TNPS 12155.0 12789.0 CTNA 12155.0 12789.0 CTFA 12155.0 12789.0 SNP2 12170.5 12804 .5 SC-O2 12170.5 12804 .5 AHSI 12170.5 12804 .5 SBD2 12170.5 12804.5 SGRC 12183.5 12817.5 SEXP 12190.0 12824 .5 SEMP 12190.0 12824 .5 SFXE 12190.0 12824 .5 SESP 12190.0 12824 .5 SEDP 12190.0 12824 .5 SROP 12234 .5 12877.0 $ LOG HEADER DATA DATE LOGGED: 17-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 12877.0 TOP LOG INTERVAL (FT) : .,e 12234 .0 BOTTOM LOG INTERVAL (FT) : 12877.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 90. 6 MAXIMUM ANGLE: 127.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 91360 CTN COMP THERMAL NEUTRON 275361 EWR4 Electromag Resis. 4 11261763 ALD Azimuthal Litho-Dens 193135 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6. 125 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 28000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .140 81.0 MUD AT MAX CIRCULATING TERMPERATURE: .060 204. 9 MUD FILTRATE AT MT: .240 81.0 MUD CAKE AT MT: .260 81.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 FCNT MWD140 CP30 4 1 68 4 2 NCNT MWD140 CP30 4 1 68 8 3 CALN MWD140 IN 4 1 68 12 4 RHOB MWD140 G/CC 4 1 68 16 5 DRHO MWD140 G/CC 4 1 68 20 6 RPD MWD140 OHMM 4 1 68 24 7 RPM MWD140 OHMM 4 1 68 28 8 RPS MWD140 OHMM 4 1 68 32 9 RPX MWD140 OHMM 4 1 68 36 10 FET MWD140 HR 4 1 68 40 11 GR MWD140 API 4 1 68 44 12 PEF MWD140 B/E 4 1 6a, 48 13 ROP MWD140 FPH 4 1 68 52 14 NPHI MWD140 PU 4 1 68 56 15 $ . ' J. First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12155 12877 12516 1445 12155 12877 FCNT MWD140 CP30 404 .22 1312.86 650.324 1269 12155 12789 NCNT MWD140 CP30 19883 36767. 6 28279.5 1269 12155 12789 CALN MWD140 IN 5. 69 7.05 6. 13728 512 12170.5 12804 .5 RHOB MWD140 G/CC 2.215 2.874 2.42023 1269 12170.5 12804 .5 DRHO MWD140 G/CC -0. 098 0. 626 0. 115636 1269 12170.5 12804 .5 RPD MWD140 OHMM 0.78 23.06 8. 69083 1270 12190 12824 .5 . RPM MWD140 OHMM 0.75 23.27 8.26042 1270 12190 12824 .5 RPS MWD140 OHMM 0. 64 20.59 7.12282 1270 12190 12824 .5 RPX MWD140 OHMM 0. 69 17.92 5. 98132 1270 12190 12824 .5 FET MWD140 HR 0.52 28 .27 3. 65363 1270 12190 12824 .5 GR MWD140 API 17 .7 149. 44 37 . 4343 1269 12183.5 12817 .5 PEF MWD140 B/E 1.2 5. 68 2.36191 1269 12170.5 12804 .5 ROP MWD140 FPH 0.26 462. 1 91.3973 1286 12234.5 12877 NPHI MWD140 PU 13. 1 28.36 22.7248 1269 12155 12789 First Reading For Entire File 12155 Last Reading For Entire File 12877 File Trailer Service name STSLIB.008 - Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.009 Physical EOF File Header Service name STSLIB.009 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.008 Comment Record FILE HEADER FILE NUMBER: 9 RAW MAD Curves and log header data for each pass of each run in separate files. DEPTH INCREMENT: . 5000 MAD RUN NUMBER: 13 MAD PASS NUMBER: 1 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH TNPS 10362.5 10680.5 CTFA 10362.5 10714 .0 CTNA 10362.5 10714 .0 SNP2 10376.5 10697.5 SBD2 10376.5 10697.5 SCO2 10376.5 10697 .5 SGRC 10382.5 -10742.5 SRAT 10439.5 10757.5 SEMP 10600.0 10723.5 SEDP 10600.0 10723.5 SESP 10600.0 10723.5 SEXP 10600.0 10723.5 SFXE 10600. 0 10723.5 LOG HEADER DATA DATE LOGGED: 15-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10757.5 TOP LOG INTERVAL (FT) : 10362.5 BOTTOM LOG INTERVAL (FT) : 10757.5 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37. 9 MAXIMUM ANGLE: 96.3 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 91360 CTN COMP THERMAL NEUTRON 275361 EWR4 Electromag Resis. 4 11261763 ALD Azimuthal Litho-Dens 193135 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6.125 DRILLER'S CASING DEPTH (FT) : 10528 .0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8 .70 MUD VISCOSITY (S) : 44.0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 28000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .260 70.0 MUD AT MAX CIRCULATING TERMPERATURE: .110 169. 6 MUD FILTRATE AT MT: .210 70.0 MUD CAKE AT MT: .160 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .lIN Max frames per record Undefined Absent value -999 Depth Units -0" Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel x i DEPT FT 4 1 68 0 1 FCNT MAD131 CP30 4 1 68 4 2 NCNT MAD131 CP30 4 1 68 8 3 RHOB MAD131 G/CC 4 1 68 12 4 DRHO MAD131 G/CC 4 1 68 16 5 RPD MAD131 OHMM 4 1 68 20 6 RPM MAD131 OHMM 4 1 68 24 7 RPS MAD131 OHMM 4 1 68 28 8 RPX MAD131 OHMM 4 1 68 32 9 FET MAD131 HR 4 1 68 36 10 GR MAD131 API 4 1 68 40 11 PEF MAD131 B/E 4 1 68 44 12 RAT MAD131 FPH 4 1 68 48 13 NPHI MAD131 PU 4 1 68 52 14 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10362.5 10757 .5 10560 791 10362.5 10757. 5 FCNT MAD131 CP30 96. 69 1781.33 365.248 645 10362.5 10714 NCNT MAD131 CP30 14068. 6 38409.2 19790. 3 645 10362.5 10714 RHOB MAD131 G/CC 1.246 2.8 2.30112 643 10376.5 10697 .5 DRHO MAD131 G/CC -1. 664 0.34 -0.397345 643 10376.5 10697.5 RPD MAD131 OHMM 0. 95 2000 416.588 248 10600 10723.5 RPM MAD131 OHMM 0.09 2000 275.596 248 10600 10723.5 RPS MAD131 OHMM 0.24 2000 178.386 248 10600 10723.5 _ RPX MAD131 OHMM 0.21 2000 35.5983 248 10600 10723.5 FET MAD131 HR 40. 99 762.8 161.284 248 10600 10723.5 GR MAD131 API 21.03 305 68.3377 721 10382.5 10742.5 PEF MAD131 B/E 1. 66 15.56 9.38512 643 10376.5 10697.5 RAT MAD131 FPH 3.73 354 .76 294 .011 637 10439.5 10757.5 NPHI MAD131 PU 3.59 68 .23 33.7963 636 10362.5 10680.5 First Reading For Entire File 10362.5 Last Reading For Entire File 10757 .5 File Trailer Service name STSLIB.009 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.010 Physical EOF File Header Service name STSLIB.010 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.009 Comment Record FILE HEADER FILE NUMBER: 10 RAW MAD .> Curves and log header data for each pass of each run in separate files. DEPTH INCREMENT: .5000 MAD RUN NUMBER: 14 MAD PASS NUMBER: 1 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH CTNA 12439.5 12789.0 CTFA 12439.5 12789.0 TNPS 12439.5 12789.0 SBD2 12454 .0 12804 .0 SCO2 12454 . 0 12804 .0 SNP2 12454 .0 12804 .0 SGRC 12466.5 12817.0 SFXE 12473.5 12824 .0 SEXP 12473.5 12824 .0 SEMP 12473.5 12824 .0 SESP 12473. 5 12824 .0 SEDP 12473.5 12824 .0 SRAT 12526.5 12877.0 LOG HEADER DATA DATE LOGGED: 17-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88 .2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 12877.0 TOP LOG INTERVAL (FT) : 12439.5 BOTTOM LOG INTERVAL (FT) : 12877.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 90. 6 MAXIMUM ANGLE: 127 .2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 91360 CTN COMP THERMAL NEUTRON 275361 EWR4 Electromag Resis. 4 11261763 ALD Azimuthal Litho-Dens 193135 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6.125 DRILLER'S CASING DEPTH (FT) : 10528 .0 # BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 28000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .140 81.0 MUD AT MAX CIRCULATING TERMPERATURE: .060 204 . 9 MUD FILTRATE AT MT: .240 81.0 MUD CAKE AT MT: .260 81.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: r Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 ' Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 FCNT MAD141 CP30 4 1 68 4 2 NCNT MAD141 CP30 4 1 68 8 3 RHOB MAD141 G/CC 4 1 68 12 4 DRHO MAD141 G/CC 4 1 68 16 5 RPD MAD141 OHMM 4 1 68 20 6 RPM MAD141 OHMM 4 1 68 24 7 RPS MAD141 OHMM 4 1 68 28 8 RPX MAD141 OHMM 4 1 68 32 9 FET MAD141 HR 4 1 68 36 10 GR MAD141 API 4 1 68 40 11 PEF MAD141 B/E 4 1 68 44 12 RAT MAD141 FPH 4 1 68 48 13 NPHI MAD141 PU 4 1 68 52 14 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12439.5 12877 12658.3 876 12439.5 12877 FCNT MAD141 CP30 441. 49 1565.72 731. 188 700 12439.5 12789 NCNT MAD141 CP30 24362. 8 40196. 6 30193.3 700 12439.5 12789 RHOB MAD141 G/CC 2.249 2. 955 2.41544 701 12454 12804 DRHO MAD141 G/CC -0. 423 0.22 0.0592553 701 12454 12804 I RPD MAD141 OHMM 0.5 21.74 11.062 702 12473.5 12824 RPM MAD141 OHMM 0. 49 19.03 9. 65736 702 12473.5 12824 RPS MAD141 OHMM 0.59 19.86 7.88211 702 12473.5 12824 RPX MAD141 OHMM 0. 61 18.8 6. 60595 702 12473.5 12824 FET MAD141 HR 3.76 21.53 13. 6141 702 12473.5 12824 GR MAD141 API 17.07 153.58 41.264 702 12466.5 12817 PEF MAD141 B/E 1. 14 5.8 2.26207 701 12454 12804 RAT -MAD141 FPH 5. 64 369.85 136.833 702 12526.5 12877 NPHI MAD141 PU 12.06 29.44 21. 6676 700 12439.5 12789 First Reading For Entire File 12439.5 Last Reading For Entire File 12877 File Trailer Service name STSLIB.010 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type. LO Next File Name STSLIB.011 Physical EOF .,r Tape Trailer Service name LISTPE Date 11/01/17 Origin STS Tape Name UNKNOWN Continuation Number 01 Next Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name LISTPE Date 11/01/17 Origin STS Reel Name UNKNOWN Continuation Number 01 Next Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File -4- f Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Mon Jan 17 15: 10:58 2011 Reel Header Service name LISTPE Date 11/01/17 Origin STS Reel Name UNKNOWN Continuation Number 01 Previous Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Tape Header Service name LISTPE Date 11/01/17 Origin STS Tape Name UNKNOWN Continuation Number 01 Previous Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS WELL NAME: W-19BL1 API NUMBER: 500292200661 OPERATOR: BP Exploration (Alaska) , Inc. LOGGING COMPANY: Sperry Drilling TAPE CREATION DATE: 17-JAN-11 JOB DATA MWD RUN 1 MWD RUN 2 MWD RUN 3 JOB NUMBER: -MW-0007409877 -MW-0007409877 -MW-0007409877 LOGGING ENGINEER: ARUN MENEZES ARUN MENEZES SHAWN POLAK OPERATOR WITNESS: BILL DECKER BILL DECKER JOEY LEBLANC MWD RUN 12 MWD RUN 13 MWD RUN 14 JOB NUMBER: -MW-0007409877 -MW-0007409877 -MW-0007409877 LOGGING ENGINEER: SHAWN POLAK SHAWN POLAK SHAWN POLAK OPERATOR WITNESS: JOEY LEBLANC JOEY LEBLANC BLAIR NEUFEL MWD RUN 16 MAD RUN 16 JOB NUMBER: -MW-0007409877 -MW-0007409877 LOGGING ENGINEER: SHAWN POLAK SHAWN POLAK OPERATOR WITNESS: BLAIR NEUFEL BLAIR NEUFEL SURFACE LOCATION SECTION: 21 TOWNSHIP: 11N RANGE: 12E FNL: 696 FSL: FEL: 1181 FWL: ELEVATION (FT FROM MSL 0) a 0 --0C '& ap 65-7 r c KELLY BUSHING: DERRICK FLOOR: 86.87 GROUND LEVEL: 47.83 WELL CASING RECORD OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 12.250 13.375 2692.0 2ND STRING 8.500 9. 625 10528.0 3RD STRING PRODUCTION STRING REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH (TVD) . ONLY INVERT/ REVERT SECTIONS GREATER THAN 30' TVD ARE PRESENTED. 3. THIS OPEN—HOLE SIDETRACK EXITED W-19B L1PB1 AT 12568'MD/8970'TVD, WITHIN THE MWD RUN 14 INTERVAL. 4 . MWD RUNS 1-3, 13, 14, 16 COMPRISED DIRECTIONAL, DUAL GAMMA RAY (DGR) UTILIZING GEIGER—MUELLER TUBE DETECTORS, ELECTROMAGNETIC WAVE RESISTIVITY—PHASE 4 (EWR—P4) , AND DRILLSTRING DYNAMICS SENSOR (DDSr) . MWD RUNS 1, 14, 16 ALSO INCLUDED AT—BIT INCLINATION (ABI) . MWD RUNS 1,2, 13, 14, 16 ALSO INCLUDED PRESSURE WHILE DRILLING (PWD) . MWD RUNS 13, 14, 16 ALSO INCLUDED COMPENSATED THERMAL NEUTRON POROSITY (CTN) AND AZIMUTHAL LITHO—DENSITY (ALD) . ROTATED MAD PASS DATA WERE ACQUIRED FROM TD TO ABOUT 10640'MD WHILE POOH. THESE DATA ARE PRESENTED SEPARATELY. MWD RUN 15 WAS A FAILED SIDETRACK ATTEMPT. 5. SHIFTING INSTRUCTIONS WERE PROVIDED VIA E—MAIL BY D. DORTCH (SAIC/BP) DATED 28 OCTOBER 2010, QUOTING AUTHORIZATION FROM JENNIFER FLIGHT (BP) . MERGED DIGITAL AND LOG DATA WERE SHIFTED TO THE SHIFTED W-19B L1PB1 LOG ABOVE THE KOP OF 12568'MD/8970'TVD. MAD DATA WERE CORRECTED (SHIFTED) TO THE MWD DATA. ANNOTATIONS AND LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTHS. THE SHIFTED MWD DATASET IS THE PDCL FOR W-19B L1. 6. MWD RUNS 1-3, 12-14, 16 REPRESENT WELL W-19B L1 WITH API# 50-029- 22006-61. THIS WELL REACHED A TOTAL DEPTH (TD) OF 14701'MD/9068' TVD. SROP = RATE OF PENETRATION WHILE DRILLING SRAT = TOOL RUNNING SPEED WHEN NOT DRILLING (MAD PASSING) SGRC = DUAL GAMMA RAY COMBINED c SEXP = EWR PHASE-4 9" 2 MHZ PHASE SHIFT RESISTIVITY SESP = EWR PHASE-4 15" 2 MHZ PHASE SHIFT RESISTIVITY SEMP = EWR PHASE-4 27" 2 MHZ PHASE SHIFT RESISTIVITY SEDP = EWR PHASE-4 39" 1 MHZ PHASE SHIFT RESISTIVITY SFXE = FORMATION EXPOSURE TIME (EWR-PHASE-4) TNPS = THERMAL NEUTRON POROSITY-SS MATRIX CTFA = SMOOTHED AVERAGE OF FAR DETECTOR'S COUNT RATE CTNA = SMOOTHED AVERAGE OF NEAR DETECTOR'S COUNT RATE SBD2 = BULK DENSITY COMPENSATED (RAPID SAMPLE) - LOW COUNT BIN SCO2 = DELTA-RHO (RAPID SAMPLE) - LOW COUNT BIN SNP2 = NEAR DETECTOR PE FACTOR (RAPID SAMPLE) - LOW COUNT BIN HDBQ = ALD COMPENSATED DENSITY BINNED DATA - BOTTOM QUADRANT HDTQ = ALD COMPENSATED DENSITY BINNED DATA - TOP QUADRANT HDLQ = ALD COMPENSATED DENSITY BINNED DATA - LEFT QUADRANT HDRQ = ALD COMPENSATED DENSITY BINNED DATA - RIGHT QUADRANT HRBQ = ALD DENSITY CORRECTION BINNED DATA - BOTTOM QUADRANT HRTQ = ALD DENSITY CORRECTION BINNED DATA - TOP QUADRANT HRLQ = ALD DENSITY CORRECTION BINNED DATA - LEFT QUADRANT HRRQ = ALD DENSITY CORRECTION BINNED DATA - RIGHT QUADRANT HPBQ = ALD Pe FACTOR BINNED DATA - BOTTOM QUADRANT HPTQ = ALD Pe FACTOR BINNED DATA - TOP QUADRANT HPLQ = ALD Pe FACTOR BINNED DATA - LEFT QUADRANT HPRQ = ALD Pe FACTOR BINNED DATA - RIGHT QUADRANT ALRPM = ALD RPM REFLECTING BIT-TO-SENSOR DISTANCE (NON-SLIDE INTERVALS) AHSI = ALD HOLE-SIZE INDICATOR (CALIPER) AN 'M' SUFFIX ON CURVE MNEMONICS DENOTES MAD PASS DATA PARAMETERS USED IN POROSITY LOG PROCESSING: HOLE SIZE: FIXED AT 6.125 INCHES MUD WEIGHT: 8.4 - 8.8 PPG WHOLE MUD CHLORIDES: 25, 000 - 26, 000 PPM FORMATION WATER SALINITY: 11500 PPM CL FLUID DENSITY: 1.0 G/CC MATRIX DENSITY: 2. 65 G/CC LITHOLOGY: SANDSTONE ALL DATA CURVES ARE SMOOTHED TO A STEP OF 0.5 FT, WITH A WINDOW OF 0. 6 FT, EXCEPT FOR SROP AND SGRC. THESE CURVES ARE SMOOTHED WITH A 1. 1 FT WINDOW. GAP FILL IS SET TO 5 FT FOR ALL CURVES. File Header Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 � f EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 2636.5 14625.0 RPS 2677 .0 14632.0 RPD 2677.0 14632.0 FET 2677.0 14632.0 RPM 2677 .0 14632.0 RPX 2677.0 14632.0 ROP 2689.5 14690.5 FCNT 10573.5 14597.0 NCNT 10573.5 14597.0 NPHI 10573.5 14597.0 RHOB 10587.0 14612.0 DRHO 10587.0 14612.0 PEF 10587.0 14612.0 PEF1 10588.0 14612.0 RHO1 10588 .0 14612.0 DHO1 10588.0 14612.0 PEF4 10589.5 14612.0 RHO4 10589.5 14612.0 DHO4 10589.5 14612.0 PEF2 10609.5 14612.0 DHO2 10610.0 14612.0 RHO2 10610.0 14612.0 DHO3 10615.5 14612.0 PEF3 10615.5 14612.0 RHO3 10615.5 14612.0 CALN 11757.5 14612.0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH GR 2647.5 2656.0 2663.0 2673.5 2680.5 2690.0 2702.5 2711.0 2745.5 2754 .5 2748.0 2756.0 2781.5 2791.5 2799.0 2808.5 2806.0 2816.0 2817.5 2827.0 2824 .0 2831.0 2836.0 2844 .5 2856.0 2866.0 2893.5 2904 .0 2926.5 2936.5 2960.5 2969.5 2980.5 2988.0 2993.0 2999.0 3080.5 3091.5 3085.0 3096.0 3088.5 3098.0 3095.5 3106.5 3192.0 3201.5 3212.0 3221.5 3219.0 3229. 0 3249.0 3258 .0 3278.0 3287 .0 3302.0 3310.0 3304 .5 3312.5 3322.0 3330.5 c 1 3360.5 3370.0 3371.0 3381.0 3420.0 3429.5 3424 .5 3434 .0 3430.5 3441.5 3449.0 3461.0 3458.5 3470.0 3466.0 3475.5 3477.0 3484 .5 3487.0 3496.0 3492.0 3501.5 3504 .0 3513.0 3520.0 3530.5 3527.0 3535.0 3553. 0 3563.0 3604 .0 3613.0 3638.5 3648.0 3663.0 3672.0 3679.0 3687.0 3684 .5 3693.5 3691.5 3701.0 3696.0 3705.5 3698.0 3707.0 3704 .5 3714.0 3727.5 3735.0 3743.0 3752.0 3751.5 3759.5 3765.5 3775.0 3767.5 3777.5 3780.0 3789.5 3804 .5 3814 .5 3843.0 3851.0 3862.5 3871.5 3872.0 3881.0 3881.0 3890.0 3886.0 3895.5 3901.0 3910.5 3914 .0 3924 .5 3924.5 3934 .5 3947.0 3957 .5 3953.5 3964 .0 3961.0 3972.0 3963.5 3975.0 3969.5 3980. 0 3976.0 3985.5 3980.5 3990. 5 3983.0 3993.0 3995.5 4005. 5 4000.5 4010.5 4004 .0 4014 .0 4017.5 4027.0 4023.5 4032.5 4052.5 4061.5 4087.0 4098.0 4115.0 4125.0 4127.5 4136.5 4220.0 4227.5 4268.5 4276.0 4307.5 4316.0 4329.5 4337.5 4337.5 4347.5 4361.5 4369.0 4365.0 4373.0 4367.5 4375.0 4370.5 4378.0 4378.5 4385.5 4382.5 4391.5 4392.0 4401.0 c � 4399.5 4407.0 4406.0 4413.0 4412.0 4420.0 4430.0 4437 .5 4445.5 4452.5 4451.5 4457. 5 4599.0 4606. 5 4602.0 4609.5 4605.5 4613.0 4691.5 4699.0 4798.5 4806.0 4816.0 4824 .0 4840.0 4847.0 4944 .0 4950.5 4958.0 4965.0 4991.5 4997.0 5005.0 5013.5 5018.0 5026.0 5028.5 5035.0 5082.5 5089.5 5111.0 5117.5 5139.5 5147. 0 5154 .5 5163. 0 5174 .0 5180.5 5181.0 5187.5 5281.5 5287.0 5304 .0 5310.5 5386.5 5394 .5 5406.0 5414 .0 5411.0 5419.5 5449.5 5456.5 5521.0 5526.0 5714 .0 5721.5 5778.0 5785.0 5815.5 5823.0 5861.5 5868.0 6011.5 6017.5 6071.5 6077.5 6106.5 6113.0 6179.5 6186.0 6194 .0 6201. 0 6215.5 6221.5 6335.0 6341.5 6534 .5 6540.0 6677.0 6682.5 6703.5 6709.5 6739.0 6744 .5 6764 .5 6769.0 6776.0 6781.5 6910.0 6915.5 6981.5 6987.0 6989.0 6994 .0 7012.5 7016. 5 7084 .5 7091.0 7144 .5 7147 .5 7187.5 7189.5 7218 .0 7222.5 7229.0 7233.5 7239.0 7244 .0 7245.5 7250.0 7265.5 7268.5 7517.5 7521.5 7521.0 7524 .5 7523.5 7527.0 7555.5 7559.0 7611.0 7616.0 7630.0 7634 .0 7633.0 7637 .5 T 7648.0 7651.5 7659.0 7662.5 7665.0 7668.0 7669.5 7673.5 7676. 0 7680. 0 7681.5 7685.0 7686.5 7689.5 7700.0 7705.5 7711.0 7714 .5 7731.0 7735.0 7737 .5 7741.0 7766.5 7769.5 7779.0 7783.0 7800.5 7804.5 7807.5 7810.0 7810.0 7814 .0 7813.0 7817.0 7850.0 7853.5 7875.5 7879.0 7885.5 7890.0 7895.0 7898 .0 7919.5 7922.0 7927 .5 7931.0 8457.5 8462.0 8465.0 8468.5 8559. 0 8559.5 8626. 0 8628.5 8774 .5 8774. 0 8869.5 8867.0 9153.5 9155.5 9171.5 9171.0 9250.0 9250.0 9537.5 9537.5 9573.0 9572.5 9794 .0 9791.5 9816.5 9816.0 9852.0 9852.0 9900.0 9899.5 9946.0 9944 .5 9975.5 9974 .5 10006.5 10005.5 10341.0 10338.5 10360.0 10357.5 10473.0 10472.0 10498.0 10498.0 10502.5 10504 .0 10516.0 10514 .5 10528.0 10527.0 10532.0 10532.5 10545.0 10545.5 10547.5 10547.5 10556.5 10556.5 10565.0 10566.0 10573.0 10573.5 10582.5 10581.5 10585.0 10585.5 10589.0 10590.0 10597.0 10597.0 10600.0 10600.0 10601.5 10602.0 10604 .5 10604 .5 10608.5 10608.5 10614 .5 10613.5 10618 .0 10620.5 10623.5 10628 .5 10625.5 10631.0 10627 .5 10633.5 10629. 0 10636.5 10635.5 10643.0 10641.0 10649.0 10642.5 10650.5 10644 .5 10652.0 10648.5 10658.0 10650.5 10659.5 10654 .0 10663.5 10658.0 10668.0 10663.0 10673.0 10665.5 10675.5 10668 .0 10678.0 10669.5 10679.5 10673.0 10682.5 10676.5 10685.5 10680.0 10689.0 10682.5 10691.0 10685.5 10694 .0 10698.5 10708.5 10701.0 10710.5 10703.0 10712.0 10711.0 10719.0 10735.0 10743.5 12509.5 12521.0 12515.5 12527.0 12527.0 12538 .0 12535.5 12546.0 12539. 0 12549.5 12548. 0 12558.5 12553.5 12563.5 12557.5 12568.0 14690.5 14701.0 MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE MWD 1 2645.0 9415.0 MWD 2 9415.0 10540.0 MWD 3 10540.0 10619.0 MWD 12 10619.5 10652.0 MWD 13 10652.0 12234 .0 MWD 14 12234 .0 12568.0 MWD 16 12568.0 14701.0 # I REMARKS: MERGED MAIN PASS. Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MWD IN 4 1 68 4 2 FCNT MWD CP30 4 1 68 8 3 NCNT MWD CP30 4 1 68 12 4 RHO1 MWD G/CC 4 1 68 16 5 RHOS MWD G/CC 4 1 68 20 6 RHO4 MWD G/CC 4 1 68 24 7 RHO2 MWD G/CC 4 1 68 28 8 { I PEF1 MWD B/E 4 1 68 32 9 PEF3 MWD B/E 4 1 68 36 10 PEF4 MWD B/E 4 1 68 40 11 PEF2 MWD B/E 4 1 68 44 12 DHO1 MWD G/CC 4 1 68 48 13 DHO3 MWD G/CC 4 1 68 52 14 DHO4 MWD G/CC 4 1 68 56 15 DHO2 MWD G/CC 4 1 68 60 16 RHOB MWD G/CC 4 1 68 64 17 DRHO MWD G/CC 4 1 68 68 18 RPD MWD OHMM 4 1 68 72 19 RPM MWD OHMM 4 1 68 76 20 RPS MWD OHMM 4 1 68 80 21 RPX MWD OHMM 4 1 68 84 22 FET MWD HR 4 1 68 88 23 GR MWD API 4 1 68 92 24 PEF MWD B/E 4 1 68 96 25 ROP MWD FPH 4 1 68 100 26 NPHI MWD PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2636.5 14690.5 8663.5 24109 2636.5 14690.5 CALN MWD IN 5. 69 8.25 6.26549 3124 11757.5 14612 FCNT MWD CP30 148.49 2253.66 714.394 8048 10573.5 14597 NCNT MWD CP30 15473.3 44947.8 29144 8048 10573.5 14597 RHO1 MWD G/CC 0. 911 3.119 2.40989 6150 10588 14612 RHOS MWD G/CC 1. 984 3.08 2.40381 4632 10615.5 14612 RHO4 MWD G/CC 2.012 3.948 2.41038 5702 10589.5 14612 RHO2 MWD G/CC 1. 14 2.953 2.40756 4971 10610 14612 PEF1 MWD B/E 0.87 15.22 2.29533 6231 10588 14612 PEF3 MWD B/E 0. 99 13.51 2.19191 4706 10615.5 14612 PEF4 MWD B/E 0.53 14.79 2.28646 5857 10589.5 14612 PEF2 MWD B/E 1.07 15.79 2.27736 5026 10609.5 14612 DHO1 MWD G/CC -1.468 0.491 0.0345332 6150 10588 14612 DHO3 MWD G/CC -0. 63 0.436 0.10396 4632 10615.5 14612 DHO4 MWD G/CC -0. 633 0. 924 0.0765423 5702 10589.5 14612 DHO2 MWD G/CC -2.034 0. 62 0. 179783 4971 10610 14612 RHOB MWD G/CC 0.756 3.296 2.42242 8051 10587 14612 DRHO MWD G/CC -2. 973 0.577 0.0665207 8051 10587 14612 RPD MWD OHMM 0.03 2000 9.90022 23831 2677 14632 j RPM MWD OHMM 0.06 2000 9. 61929 23831 2677 14632 RPS MWD OHMM 0.06 2000 7.40027 23831 2677 14632 RPX MWD OHMM 0.06 2000 5.55941 23831 2677 14632 FET MWD HR 0. 18 719. 62 3.49962 23831 2677 14632 GR MWD API 11. 66 442 75.0021 23964 2636.5 14625 PEF MWD B/E 1.05 14.74 2.35618 8051 10587 14612 ROP MWD FPH 0 1461. 68 161.233 24003 2689.5 14690.5 NPHI MWD PU 5. 1 45.71 21.4613 8048 10573.5 14597 I First Reading For Entire File 2636.5 Last Reading For Entire File 14690.5 File Trailer Service name STSLIB.001 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.002 % Physical EOF File Header Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 EDITED MERGED MAD Depth shifted and clipped curves; all MAD runs merged using earliest passes. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH NCNT 10551.5 14597.5 NPHI 10551.5 14597.5 FCNT 10551.5 14597.5 RAT 10554 .5 14689.5 DRHO 10566.0 14612.5 PEF 10566.0 14612.5 RHOB 10566.0 14612.5 CALN 10566.0 14612.5 DHO4 10568.0 14612.5 PEF1 10568.0 14612.5 PEF3 10568.0 14612.5 DHO2 10568.0 14612.5 PEF4 10568.0 14612.5 PEF2 10568.0 14612.5 RHO4 10568 .0 14612.5 DHO3 10568 .0 14612.5 RHO2 10568.0 14612.5 RHO1 10568.0 14612.5 DHO1 10568.0 14612.5 RHOS 10568.0 14612.5 GR 10579.0 14625.0 RPD 10586.0 14632.0 FET 10586.0 14632.0 RPS 10586.0 14632.0 RPX 10586.0 14632.0 RPM 10586.0 14632.0 MERGED DATA SOURCE PBU TOOL CODE MAD RUN NO. MAD PASS NO. MERGE TOP MERGE BASE MWD 16 1 10551.0 14701.0 REMARKS: MERGED MAD PASS. Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 A Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MAD IN 4 1 68 4 2 FCNT MAD CP30 4 1 68 8 3 NCNT MAD CP30 4 1 68 12 4 RHO1 MAD G/CC 4 1 68 16 5 RHOS MAD G/CC 4 1 68 20 6 RHO4 MAD G/CC 4 1 68 24 7 RHO2 MAD G/CC 4 1 68 28 8 PEF1 MAD B/E 4 1 68 32 9 PEF3 MAD B/E 4 1 68 36 10 PEF4 MAD B/E 4 1 68 40 11 PEF2 MAD B/E 4 1 68 44 12 DHO1 MAD G/CC 4 1 68 48 13 DHO3 MAD G/CC 4 1 68 52 14 DHO4 MAD G/CC 4 1 68 56 15 DHO2 MAD G/CC 4 1 68 60 16 RHOB MAD G/CC 4 1 68 64 17 DRHO MAD G/CC 4 1 68 68 18 RPD MAD OHMM 4 1 68 72 19 RPM MAD OHMM 4 1 68 76 20 RPS MAD OHMM 4 1 68 80 21 RPX MAD OHMM 4 1 68 84 22 FET MAD HR 4 1 68 88 23 GR MAD API 4 1 68 92 24 PEF MAD B/E 4 1 68 96 25 RAT MAD FPH 4 1 68 100 26 NPHI MAD PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10551.5 14689.5 12620.5 8277 10551.5 14689.5 CALN MAD IN 5.75 10. 91 6.26928 8094 10566 14612.5 FCNT MAD CP30 122.05 1966.6 701.117 8093 10551.5 14597.5 NCNT MAD CP30 15362. 1 43130.2 29063. 9 8093 10551.5 14597.5 RHO1 MAD G/CC 1. 972 2.866 2.39741 8090 10568 14612.5 RHO3 MAD G/CC 1. 119 2.839 2.36244 8090 10568 14612.5 RHO4 MAD G/CC 1.384 2.892 2.3857 8090 10568 14612.5 1 RHO2 MAD G/CC 1.404 2.822 2.3804 8090 10568 14612.5 PEF1 MAD B/E 0.76 12.81 2.24632 8090 10568 14612.5 PEF3 MAD B/E 0.33 15.26 2.13155 8090 10568 14612.5 PEF4 MAD B/E 0.55 12.52 2.32706 8090 10568 14612.5 PEF2 MAD B/E 0.53 12.87 2.23022 8090 10568 14612.5 DHO1 MAD G/CC -0.564 0.46 0.00306242 8090 10568 14612.5 DHO3 MAD G/CC -2.089 0.579 0.072388 8090 10568 14612.5 I DHO4 MAD G/CC -1. 617 0.579 0.0651096 8090 10568 14612.5 DHO2 MAD G/CC -0. 602 0.564 0. 185112 8090 10568 14612.5 RHOB MAD G/CC 1.296 3.238 2.41501 8094 10566 14612.5 DRHO MAD G/CC -2.074 0. 652 0.0321417 8094 10566 14612.5 I RPD MAD OHMM 0.22 2000 20.3973 8093 10586 14632 RPM MAD OHMM 0.14 2000 15.516 8093 10586 14632 RPS MAD OHMM 0.49 2000 9.50116 8093 10586 14632 RPX MAD OHMM 0.32 2000 6.77846 8093 10586 14632 FET MAD HR 26. 82 1009.8 167. 986 8093 10586 14632 GR MAD API 11.74 275.26 42. 9575 8093 10579 14625 PEF MAD B/E 0.89 13.71 2.34423 8094 10566 14612.5 RAT MAD FPH 0.04 2836. 6 265. 63 8271 10554 .5 14689.5 NPHI MAD PU 3.35 50.75 21. 9898 8093 10551.5 14597 . 5 First Reading For Entire File 10551.5 Last Reading For Entire File 14689.5 File Trailer Service name STSLIB.002 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.003 Physical EOF File Header Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SGRC 2645.0 9362.0 SFXE 2686.5 9354 .0 SESP 2686.5 9354.0 SEDP 2686.5 9354 .0 SEMP 2686.5 9354 .0 SEXP 2686.5 9354 .0 SROP 2698.5 9415.0 $ LOG HEADER DATA DATE LOGGED: 06-AUG-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.47 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 9415.0 TOP LOG INTERVAL (FT) : 2645.0 BOTTOM LOG INTERVAL (FT) : 9415.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: .2 MAXIMUM ANGLE: 44 .8 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 237798 EWR4 ELECTROMAG. RESIS. 4 226997 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 12.250 DRILLER'S CASING DEPTH (FT) : 2692.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 11.00 MUD VISCOSITY (S) : 53.0 MUD PH: 9.4 MUD CHLORIDES (PPM) : 1200 FLUID LOSS (C3) : 3.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1.700 70.0 MUD AT MAX CIRCULATING TERMPERATURE: .820 152.0 MUD FILTRATE AT MT: 1.800 70.0 MUD CAKE AT MT: 1.200 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD010 OHMM 4 1 68 4 2 RPM MWD010 OHMM 4 1 68 8 3 RPS MWD010 OHMM 4 1 68 12 4 RPX MWD010 OHMM 4 1 68 16 5 FET MWD010 HR 4 1 68 20 6 GR MWD010 API 4 1 68 24 7 ROP MWD010 FPH 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2645 9415 6030 13541 2645 9415 RPD MWD010 OHMM 0.03 90.82 5.00207 13336 2686.5 9354 RPM MWD010 OHMM 0.06 92. 1 4 .82342 13336 2686.5 9354 RPS MWD010 OHMM 0.06 69.59 4.5054 13336 2686.5 9354 RPX MWD010 OHMM 0.06 26.01 3. 91144 13336 2686.5 9354 FET MWD010 HR 0. 18 16.12 1.24281 13336 2686.5 9354 GR MWD010 API 11. 66 325.03 90.3413 13421 2645 9362 ROP MWD010 FPH 0.15 1229.46 188.034 13434 2698.5 9415 First Reading For Entire File 2645 Last Reading For Entire File 9415 File Trailer Service name STSLIB.003 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.004 Physical EOF File Header Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.003 Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 2 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SFXE 9354 .5 10479.0 SEXP 9354 .5 10479.0 SESP 9354 .5 10479.0 SEDP 9354 .5 10479.0 SEMP 9354 .5 10479.0 SGRC 9362.5 10487.0 SROP 9415.5 10540.0 LOG HEADER DATA DATE LOGGED: 09-AUG-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88. 47 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10540.0 TOP LOG INTERVAL (FT) : 9415.0 BOTTOM LOG INTERVAL (FT) : 10540.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37.7 MAXIMUM ANGLE: 41.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 94503 EWR4 ELECTROMAG. RESIS. 4 186747 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 12.250 DRILLER'S CASING DEPTH (FT) : 2692.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 11.00 MUD VISCOSITY (S) : 47 .0 MUD PH: 9.5 MUD CHLORIDES (PPM) : 1200 FLUID LOSS (C3) : 3.0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : 1. 600 78.0 MUD AT MAX CIRCULATING TERMPERATURE: .780 166.0 MUD FILTRATE AT MT: 1.200 78.0 MUD CAKE AT MT: 1.800 78.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD020 OHMM 4 1 68 4 2 RPM MWD020 OHMM 4 1 68 8 3 RPS MWD020 OHMM 4 1 68 12 4 RPX MWD020 OHMM 4 1 68 16 5 FET MWD020 HR 4 1 68 20 6 GR MWD020 API 4 1 68 24 7 ROP MWD020 FPH 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 9354 .5 10540 9947.25 2372 9354 .5 10540 RPD MWD020 OHMM 0.71 5.37 1.84266 2250 9354 .5 10479 RPM MWD020 OHMM 0. 66 6.06 1.85228 2250 9354 .5 10479 RPS MWD020 OHMM 0.7 6.02 1.88353 2250 9354 .5 10479 RPX MWD020 OHMM 0.74 5.78 1.85039 2250 9354 .5 10479 FET MWD020 HR 0.39 31.13 3.79163 2250 9354 .5 10479 GR MWD020 API 65. 98 165.57 105. 6 2250 9362.5 10487 ROP MWD020 FPH 0.01 220.31 107.513 2250 9415.5 10540 First Reading For Entire File 9354 .5 Last Reading For Entire File 10540 File Trailer Service name STSLIB.004 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.005 Physical EOF File Header Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.004 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SFXE 10479.5 10619.0 SEXP 10479.5 10619.0 SEMP 10479. 5 10619.0 SESP 10479. 5 10619.0 SEDP 10479.5 10619.0 SGRC 10487 .5 10619.0 SROP 10540.5 10619.0 LOG HEADER DATA DATE LOGGED: 14-AUG-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10619.0 TOP LOG INTERVAL (FT) : 10540.0 BOTTOM LOG INTERVAL (FT) : 10619.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37 .0 MAXIMUM ANGLE: 37. 6 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 149206 EWR4 ELECTROMAG. RESIS. 4 228269 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 8.500 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.5 MUD CHLORIDES (PPM) : 22000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .210 80.0 MUD AT MAX CIRCULATING TERMPERATURE: .090 194 .0 MUD FILTRATE AT MT: .240 80.0 MUD CAKE AT MT: .190 78 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 RPD MWD030 OHMM 4 1 68 4 2 RPM MWD030 OHMM 4 1 68 8 3 RPS MWD030 OHMM 4 1 68 12 4 RPX MWD030 OHMM 4 1 68 16 5 FET MWD030 HR 4 1 68 20 6 GR MWD030 API 4 1 68 24 7 ROP MWD030 FPH 4 1 68 28 8 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10479.5 10619 10549.3 280 10479.5 10619 RPD MWD030 OHMM 2.41 1965.43 124 .597 201 10479.5 10619 RPM MWD030 OHMM 0.23 1970.33 85.4304 201 10479.5 10619 RPS MWD030 OHMM 0.23 1955. 66 66. 1827 201 10479.5 10619 RPX MWD030 OHMM 0. 19 1285.11 37.8127 201 10479.5 10619 FET MWD030 HR 1.27 131.55 31. 9054 201 10479.5 10619 GR MWD030 API 41.49 442 121.589 264 10487.5 10619 ROP MWD030 FPH 8.32 116.86 44. 4755 158 10540.5 10619 First Reading For Entire File 10479.5 Last Reading For Entire File 10619 File Trailer Service name STSLIB.005 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.006 Physical EOF File Header Service name STSLIB.006 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.005 Comment Record e I FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 12 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SROP 10619.5 10652.0 LOG HEADER DATA DATE LOGGED: 11-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 10652.0 TOP LOG INTERVAL (FT) : 10619.0 BOTTOM LOG INTERVAL (FT) : 10652.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37. 6 MAXIMUM ANGLE: 37. 6 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6.125 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 47.0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 34000 FLUID LOSS (C3) : 7 .2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .800 70.0 MUD AT MAX CIRCULATING TERMPERATURE: .000 120.0 MUD FILTRATE AT MT: . 120 70.0 MUD CAKE AT MT: .150 70. 0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units r Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD120 FPH 4 1 68 4 2 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10619.5 10652 10635.8 66 10619.5 10652 ROP MWD120 FPH 0.0778 8.8554 3. 96223 66 10619.5 10652 First Reading For Entire File 10619.5 Last Reading For Entire File 10652 File Trailer Service name STSLIB.006 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.007 Physical EOF File Header Service name STSLIB.007 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.006 Comment Record FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 13 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH CTNA 10574.0 12154 .5 TNPS 10574.0 12154.5 CTFA 10574 .0 12154.5 SBD2 10588.0 12170.0 SCO2 10588.0 12170.0 SNP2 10588.0 12170.0 HPBQ 10589.0 12170.0 HDBQ 10589.0 12170.0 HRBQ 10589.0 12170.0 HPRQ 10590.5 12170.0 HDRQ 10590.5 12170.0 HRRQ 10590.5 12170.0 HPTQ 10609.5 12170.0 HRTQ 10610.0 12170.0 HDTQ 10610.0 12170.0 HDLQ 10615. 5 12170.0 HRLQ 10615.5 12170.0 HPLQ 10615.5 12170.0 SEMP 10619.5 12189.5 SEDP 10619.5 12189.5 SESP 10619.5 12189.5 SFXE 10619.5 12189.5 SEXP 10619.5 12189.5 SGRC 10619.5 12183.0 SROP 10652.5 12234 .0 AHSI 11767.5 12170.0 LOG HEADER DATA DATE LOGGED: 15-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 12234 .0 TOP LOG INTERVAL (FT) : 10652.0 BOTTOM LOG INTERVAL (FT) : 12234 .0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 37. 9 MAXIMUM ANGLE: 96.3 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 91360 CTN COMP THERMAL NEUTRON 275361 EWR4 Electromag Resis. 4 11261763 ALD Azimuthal Litho-Dens 193135 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6. 125 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 28000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .260 70.0 MUD AT MAX CIRCULATING TERMPERATURE: . 110 169. 6 MUD FILTRATE AT MT: .210 70.0 MUD CAKE AT MT: . 160 70.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined f Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MWD130 IN 4 1 68 4 2 FCNT MWD130 CP30 4 1 68 8 3 NCNT MWD130 CP30 4 1 68 12 4 RHO1 MWD130 G/CC 4 1 68 16 5 RHO3 MWD130 G/CC 4 1 68 20 6 RHO4 MWD130 G/CC 4 1 68 24 7 RHO2 MWD130 G/CC 4 1 68 28 8 PEF1 MWD130 B/E 4 1 68 32 9 PEF3 MWD130 B/E 4 1 68 36 10 PEF4 MWD130 B/E 4 1 68 40 11 PEF2 MWD130 B/E 4 1 68 44 12 DHO1 MWD130 G/CC 4 1 68 48 13 DH03 MWD130 G/CC 4 1 68 52 14 DH04 MWD130 G/CC 4 1 68 56 15 DH02 MWD130 G/CC 4 1 68 60 16 RHOB MWD130 G/CC 4 1 68 64 17 DRHO MWD130 G/CC 4 1 68 68 18 RPD MWD130 OHMM 4 1 68 72 19 RPM MWD130 OHMM 4 1 68 76 20 RPS MWD130 OHMM 4 1 68 80 21 RPX MWD130 OHMM 4 1 68 84 22 FET MWD130 HR 4 1 68 88 23 GR MWD130 API 4 1 68 92 24 PEF MWD130 B/E 4 1 68 96 25 ROP MWD130 FPH 4 1 68 100 26 NPHI MWD130 PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10574 12234 11404 3321 10574 12234 CALN MWD130 IN 5.75 8.25 6.29165 364 11767.5 12170 FCNT MWD130 CP30 148.49 2253. 66 721.892 3162 10574 12154 .5 NCNT MWD130 CP30 15473.3 44947.8 29421.7 3162 10574 12154 .5 RHO1 MWD130 G/CC 0. 911 3.375 2.41637 2447 10589 12170 RHO3 MWD130 G/CC 2. 126 4.61 2.4247 1520 10615.5 12170 RHO4 MWD130 G/CC 2.092 3. 948 2.40876 1778 10590.5 12170 RHO2 MWD130 G/CC 1. 14 2. 953 2.42022 1554 10610 12170 PEF1 MWD130 B/E 0.87 15.22 2.49842 2463 10589 12170 PEF3 MWD130 B/E 0. 99 13.51 2.43115 1557 10615.5 12170 PEF4 MWD130 B/E 0.53 14 .79 2.37593 1844 10590.5 12170 PEF2 MWD130 B/E 1.07 15.79 2.57947 1593 10609.5 12170 DH01 MWD130 G/CC -1.468 0.491 0.0585501 2447 10589 12170 DH03 MWD130 0/CC -0. 63 0.73 0.0769796 1520 10615.5 12170 DH04 MWD130 G/CC -0. 633 0. 924 0.082752 1778 10590.5 12170 DH02 MWD130 G/CC -2.034 0.364 0.0916827 1554 10610 12170 RHOB MWD130 0/CC 0.756 3.296 2.42746 3165 10588 12170 DRHO MWD130 G/CC -2. 973 0.505 0.0623747 3165 10588 12170 RPD MWD130 OHMM 0.44 2000 27.0621 3141 10619.5 12189.5 RPM MWD130 OHMM 0.09 2000 29. 9351 3141 10619.5 12189.5 RPS MWD130 OHMM 0.22 2000 13.7201 3141 10619.5 12189.5 RPX MWD130 OHMM 0.19 2000 7.27032 3141 10619.5 12189.5 FET MWD130 HR 0.51 719. 62 15. 9365 3141 10619.5 12189.5 GR MWD130 API 13.84 217.77 40. 1182 3128 10619.5 12183 PEF MWD130 B/E 1.05 14 .79 2.62312 3165 10588 12170 ROP MWD130 FPH 0. 98 543. 17 114. 83 3164 10652.5 12234 NPHI MWD130 PU 5.1 45.71 21.206 3162 10574 12154 .5 First Reading For Entire File 10574 Last Reading For Entire File 12234 File Trailer Service name STSLIB.007 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.008 Physical EOF File Header Service name STSLIB.008 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.007 Comment Record FILE HEADER FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 14 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH TNPS 12155.0 12568.0 CTFA 12155.0 12568.0 CTNA 12155.0 12568.0 AHSI 12161.5 12435.5 HDRQ 12170.5 12568.0 HPRQ 12170.5 12568.0 HRRQ 12170.5 12568.0 SNP2 12170.5 12568.0 SBD2 12170.5 12568.0 SCO2 12170. 5 12568.0 HPBQ 12171.5 12568.0 HDBQ 12171.5 12568.0 HRBQ 12171.5 12568.0 HPTQ 12172.0 12568.0 HRLQ 12172.0 12568.0 HDTQ 12172.0 12568 .0 HPLQ 12172.0 12568.0 HDLQ 12172.0 12568.0 HRTQ 12172.0 12568.0 SGRC 12183.5 12568.0 SFXE 12190.0 12568.0 SEXP 12190.0 12568.0 SEDP 12190.0 12568.0 SESP 12190.0 12568.0 SEMP 12190.0 12568.0 SROP 12234 .5 12568.0 LOG HEADER DATA DATE LOGGED: 17-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory • • l TD DRILLER (FT) : 12568.0 TOP LOG INTERVAL (FT) : 12234.0 BOTTOM LOG INTERVAL (FT) : 12568.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 90. 6 MAXIMUM ANGLE: 127.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 91360 CTN COMP THERMAL NEUTRON 275361 EWR4 Electromag Resis. 4 11261763 ALD Azimuthal Litho-Dens 193135 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6. 125 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 28000 FLUID LOSS (C3) : 6.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : . 140 81.0 MUD AT MAX CIRCULATING TERMPERATURE: .060 204 .0 MUD FILTRATE AT MT: .240 81.0 MUD CAKE AT MT: .260 81.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MWD140 IN 4 1 68 4 2 FCNT MWD140 CP30 4 1 68 8 3 NCNT MWD140 CP30 4 1 68 12 4 RHO1 MWD140 G/CC 4 1 68 16 5 RHO3 MWD140 G/CC 4 1 68 20 6 RHO4 MWD140 G/CC 4 1 68 24 7 RHO2 MWD140 G/CC 4 1 68 28 8 PEF1 MWD140 B/E 4 1 68 32 9 PEF3 MWD140 B/E 4 1 68 36 10 PEF4 MWD140 B/E 4 1 68 40 11 ‘ L PEF2 MWD140 B/E 4 1 68 44 12 DHO1 MWD140 G/CC 4 1 68 48 13 DHO3 MWD140 G/CC 4 1 68 52 14 DHO4 MWD140 G/CC 4 1 68 56 15 DHO2 MWD140 G/CC 4 1 68 60 16 RHOB MWD140 G/CC 4 1 68 64 17 DRHO MWD140 G/CC 4 1 68 68 18 RPD MWD140 OHMM 4 1 68 72 19 RPM MWD140 OHMM 4 1 68 76 20 RPS MWD140 OHMM 4 1 68 80 21 RPX MWD140 OHMM 4 1 68 84 22 FET MWD140 HR 4 1 68 88 23 GR MWD140 API 4 1 68 92 24 PEF MWD140 B/E 4 1 68 96 25 ROP MWD140 FPH 4 1 68 100 26 NPHI MWD140 PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12155 12568 12361.5 827 12155 12568 CALN MWD140 IN 5. 69 7.05 6.1303 404 12161.5 12435.5 FCNT MWD140 CP30 404 .22 943. 66 612.005 827 12155 12568 NCNT MWD140 CP30 19883 32883.2 27800.4 827 12155 12568 RHO' MWD140 G/CC 2. 126 2. 664 2.39458 571 12171.5 12568 RHO3 MWD140 G/CC 2. 111 2. 669 2.39024 688 12172 12568 RHO4 MWD140 G/CC 2.212 2.838 2.41513 559 12170.5 12568 RHO2 MWD140 G/CC 2.229 2. 648 2.41346 494 12172 12568 PEF1 MWD140 B/E 0. 94 5. 64 2.3887 585 12171.5 12568 PEF3 MWD140 B/E 1.26 4 .21 2.38174 688 12172 12568 PEF4 MWD140 B/E 1.2 4 . 98 2.40369 559 12170.5 12568 PEF2 MWD140 B/E 1.36 4 .72 2.44732 496 12172 12568 DHO1 MWD140 G/CC -0.099 0.31 0.0508284 571 12171.5 12568 DHO3 MWD140 G/CC -0.051 0.308 0.0976744 688 12172 12568 DHO4 MWD140 G/cc -0.015 0.309 0.0905903 559 12170.5 12568 DHO2 MWD140 G/CC 0.011 0.499 0. 188105 494 12172 12568 RHOB MWD140 G/CC 2.215 2.874 2.41193 796 12170.5 12568 DRHO MWD140 G/CC -0.098 0.31 0.0836445 796 12170.5 12568 RPD MWD140 OHMM 1.49 12.08 5. 93248 757 12190 12568 RPM MWD140 OHMM 1.35 11. 97 5.85375 757 12190 12568 RPS MWD140 OHMM 1.31 10.88 5.29723 757 12190 12568 RPX MWD140 OHMM 1.24 9.09 4.56049 757 12190 12568 FET MWD140 HR 0.52 28.27 4.37165 757 12190 12568 GR MWD140 API 17.7 92.27 34 .7175 770 12183.5 12568 PEF MWD140 B/E 1.2 5. 68 2.46665 796 12170.5 12568 ROP MWD140 FPH 4 .02 462. 1 119.591 668 12234 .5 12568 NPHI MWD140 PU 16. 95 28.36 23.5335 827 12155 12568 First Reading For Entire File 12155 Last Reading For Entire File 12568 File Trailer Service name STSLIB.008 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.009 I Physical EOF File Header Service name STSLIB.009 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.008 Comment Record FILE HEADER FILE NUMBER: 9 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 16 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH HRBQ 12568 .5 14622.5 CTNA 12568.5 14607.5 CTFA 12568.5 14607.5 SEXP 12568.5 14642.5 SBD2 12568.5 14622.5 SFXE 12568.5 14642.5 TNPS 12568.5 14607.5 SGRC 12568.5 14635.5 HPBQ 12568.5 14622.5 SEDP 12568.5 14642.5 SESP 12568.5 14642.5 SROP 12568.5 14701.0 SNP2 12568.5 14622.5 SEMP 12568.5 14642.5 HDBQ 12568.5 14622.5 SCO2 12568.5 14622.5 HDRQ 12577.0 14622.5 HRRQ 12577.0 14622.5 HPRQ 12577.0 14622.5 AHSI 12579.5 14622.5 HDLQ 12580.5 14622.5 HDTQ 12580.5 14622.5 HRLQ 12580.5 14622.5 HPTQ 12580.5 14622.5 HPLQ 12580.5 14622.5 HRTQ 12580.5 14622.5 LOG HEADER DATA DATE LOGGED: 25-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 14701.0 TOP LOG INTERVAL (FT) : 12568.0 BOTTOM LOG INTERVAL (FT) : 14701.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 70.4 MAXIMUM ANGLE: 104 .4 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 181372 CTN COMP THERMAL NEUTRON 11301941 EWR4 Electromag Resis. 4 11301872 ALD Azimuthal Litho-Dens 10859714 ( 3 t BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6.125 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44 .0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 25000 FLUID LOSS (C3) : 6.0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .220 66.0 MUD AT MAX CIRCULATING TERMPERATURE: .070 222. 6 MUD FILTRATE AT MT: .240 66.0 MUD CAKE AT MT: .260 66.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 . 1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 I CALN MWD160 IN 4 1 68 4 2 FCNT MWD160 CP30 4 1 68 8 3 NCNT MWD160 CP30 4 1 68 12 4 RHO1 MWD160 G/CC 4 1 68 16 5 RHO3 MWD160 G/CC 4 1 68 20 6 RHO4 MWD160 G/CC 4 1 68 24 7 RHO2 MWD160 G/CC 4 1 68 28 8 PEF1 MWD160 B/E 4 1 68 32 9 PEF3 MWD160 B/E 4 1 68 36 10 PEF4 MWD160 B/E 4 1 68 40 11 PEF2 MWD160 B/E 4 1 68 44 12 DHO1 MWD160 G/CC 4 1 68 48 13 DHO3 MWD160 G/CC 4 1 68 52 14 DHO4 MWD160 G/CC 4 1 68 56 15 DHO2 MWD160 G/CC 4 1 68 60 16 RHOB MWD160 G/CC 4 1 68 64 17 DRHO MWD160 G/CC 4 1 68 68 18 RPD MWD160 OHMM 4 1 68 72 19 RPM MWD160 OHMM 4 1 68 76 20 RPS MWD160 OHMM 4 1 68 80 21 RPX MWD160 OHMM 4 1 68 84 22 FET MWD160 HR 4 1 68 88 23 GR MWD160 API 4 1 68 92 24 PEF MWD160 B/E 4 1 68 96 25 ROP MWD160 FPH 4 1 68 100 26 NPHI MWD160 PU 4 1 68 104 27 A I , i First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12568 .5 14701 13634 .8 4266 12568.5 14701 CALN MWD160 IN 5.85 7.51 6.28459 2357 12579.5 14622.5 FCNT MWD160 CP30 335. 94 1780.27 728. 635 4079 12568.5 14607.5 NCNT MWD160 CP30 19754. 6 41611.3 29172 4079 12568.5 14607.5 RHO1 MWD160 G/CC 2.2 2.778 2.40801 3145 12568.5 14622.5 RHO3 MWD160 G/CC 1. 984 2.657 2.39526 2435 12580.5 14622.5 RHO4 MWD160 G/CC 2.012 2.751 2.41011 3366 12577 14622.5 RHO2 MWD160 G/CC 1. 623 2.896 2.40008 2932 12580.5 14622.5 PEF1 MWD160 B/E 1.05 4.78 2.15355 3197 12568.5 14622.5 PEF3 MWD160 B/E 1. 18 4 . 19 2.03155 2472 12580.5 14622.5 PEF4 MWD160 B/E 1.29 4 .53 2.22765 3454 12577 14622.5 PEF2 MWD160 B/E 1.2 5.04 2.11477 2951 12580.5 14622.5 DHO1 MWD160 G/CC -0.096 0.475 0.0114712 3145 12568.5 14622.5 DHO3 MWD160 G/CC -0.085 0.384 0. 120473 2435 12580.5 14622.5 DHO4 MWD160 G/CC -0.072 0.507 0.0701551 3366 12577 14622.5 DHO2 MWD160 G/CC -0.076 0. 62 0.2241 2932 12580.5 14622.5 RHOB MWD160 G/CC 2. 183 2.821 2.42052 4109 12568.5 14622.5 DRHO MWD160 G/CC -0.069 0.577 0.0641974 4109 12568.5 14622.5 RPD MWD160 OHMM 3.73 41.74 15.5287 4149 12568.5 14642.5 RPM MWD160 OHMM 3. 46 35. 97 14.2189 4149 12568.5 14642.5 RPS MWD160 OHMM 2.82 37.75 12.7487 4149 12568.5 14642.5 RPX MWD160 OHMM 2.27 28.96 10.0534 4149 12568.5 14642.5 FET MWD160 HR 0.24 110.59 1. 63921 4149 12568.5 14642.5 GR MWD160 API 12.03 144.42 39.5763 4135 12568.5 14635.5 PEF MWD160 B/E 1. 18 4.89 2.16311 4109 12568.5 14622.5 ROP MWD160 FPH 0.74 1461. 68 152.281 4266 12568.5 14701 NPHI MWD160 PU 10.52 31. 19 21.1916 4079 12568 .5 14607.5 First Reading For Entire File 12568.5 Last Reading For Entire File 14701 File Trailer Service name STSLIB.009 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB. 010 Physical EOF File Header Service name STSLIB.010 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Previous File Name STSLIB.009 Comment Record FILE HEADER FILE NUMBER: 10 RAW MAD Curves and log header data for each pass of each run in separate files. DEPTH INCREMENT: .5000 MAD RUN NUMBER: 16 MAD PASS NUMBER: 1 I I T 4 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH SGRC 2646.0 14636.5 CTFA 10551.0 14607.5 TNPS 10551.0 14607.5 CTNA 10551.0 14607.5 SRAT 10554.0 14700.0 SCO2 10565.5 14622.5 SBD2 10565.5 14622.5 AHSI 10565.5 14622.5 SNP2 10565.5 14622.5 HDLQ 10567.5 14622.5 HRTQ 10567 .5 14622.5 HPRQ 10567 .5 14622.5 HDBQ 10567 .5 14622.5 HRBQ 10567.5 14622.5 HPTQ 10567.5 14622.5 HDRQ 10567.5 14622.5 HPLQ 10567.5 14622.5 HDTQ 10567.5 14622.5 HPBQ 10567.5 14622.5 HRRQ 10567.5 14622.5 HRLQ 10567.5 14622.5 SEDP 10585.5 14642.5 SESP 10585.5 14642.5 SEMP 10585.5 14642.5 SFXE 10585.5 14642.5 SEXP 10585.5 14642.5 LOG HEADER DATA DATE LOGGED: 25-SEP-10 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: 88.2 DATA TYPE (MEMORY OR REAL-TIME) : Memory TD DRILLER (FT) : 14701.0 TOP LOG INTERVAL (FT) : 10551.0 BOTTOM LOG INTERVAL (FT) : 14701.0 BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG MINIMUM ANGLE: 70. 4 MAXIMUM ANGLE: 104 .4 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY 181372 CTN COMP THERMAL NEUTRON 11301941 EWR4 Electromag Resis. 4 11301872 ALD Azimuthal Litho-Dens 10859714 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) : 6. 125 DRILLER'S CASING DEPTH (FT) : 10528.0 BOREHOLE CONDITIONS MUD TYPE: Polymer MUD DENSITY (LB/G) : 8.70 MUD VISCOSITY (S) : 44.0 MUD PH: 9.2 MUD CHLORIDES (PPM) : 25000 FLUID LOSS (C3) : 6.0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) : .220 66.0 MUD AT MAX CIRCULATING TERMPERATURE: .070 222. 6 MUD FILTRATE AT MT: .240 66.0 4 I ■ y MUD CAKE AT MT: .260 66.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) : TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : # REMARKS: $ Data Format Specification Record Data Record Type 0 Data Specification Block Type 0 Logging Direction Down Optical log depth units Feet Data Reference Point Undefined Frame Spacing 60 .1IN Max frames per record Undefined Absent value -999 Depth Units Datum Specification Block sub-type. . .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 CALN MAD161 IN 4 1 68 4 2 FCNT MAD161 CP30 4 1 68 8 3 NCNT MAD161 CP30 4 1 68 12 4 RHO1 MAD161 G/CC 4 1 68 16 5 RHO3 MAD161 G/CC 4 1 68 20 6 RHO4 MAD161 G/CC 4 1 68 24 7 RHO2 MAD161 G/CC 4 1 68 28 8 PEF1 MAD161 B/E 4 1 68 32 9 PEF3 MAD161 B/E 4 1 68 36 10 PEF4 MAD161 B/E 4 1 68 40 11 PEF2 MAD161 B/E 4 1 68 44 12 DHO1 MAD161 G/CC 4 1 68 48 13 DHO3 MAD161 G/CC 4 1 68 52 14 DHO4 MAD161 G/CC 4 1 68 56 15 DHO2 MAD161 G/CC 4 1 68 60 16 RHOB MAD161 G/CC 4 1 68 64 17 DRHO MAD161 G/CC 4 1 68 68 18 RPD MAD161 OHMM 4 1 68 72 19 RPM MAD161 OHMM 4 1 68 76 20 RPS MAD161 OHMM 4 1 68 80 21 RPX MAD161 OHMM 4 1 68 84 22 FET MAD161 HR 4 1 68 88 23 GR MAD161 API 4 1 68 92 24 PEF MAD161 B/E 4 1 68 96 25 RAT MAD161 FPH 4 1 68 100 26 NPHI MAD161 PU 4 1 68 104 27 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 2646 14700 8673 24109 2646 14700 CALN MAD161 IN 5.75 10. 91 6.27026 8115 10565.5 14622.5 FCNT MAD161 CP30 122.05 1966. 6 700.874 8114 10551 14607.5 NCNT MAD161 CP30 15362. 1 43130.2 29064 . 1 8114 10551 14607.5 RHO1 MAD161 G/CC 1. 972 2.866 2.39753 8111 10567.5 14622.5 RHOS MAD161 G/CC 1. 119 2.839 2.36256 8111 10567.5 14622.5 RHO4 MAD161 G/CC 1.384 2.892 2.38537 8111 10567.5 14622.5 RHO2 MAD161 G/CC 1. 404 2.822 2.38056 8111 10567.5 14622.5 PEF1 MAD161 B/E 0.76 12.81 2.24484 8111 10567 .5 14622.5 PEF3 MAD161 B/E 0.33 15.26 2. 1285 8111 10567 .5 14622.5 Atir PEF4 MAD161 B/E 0.55 12.52 2.32623 8111 10567.5 14622.5 PEF2 MAD161 B/E 0.53 12.87 2.23086 8111 10567.5 14622.5 DHO1 MAD161 G/CC -0.564 0.494 0.00333732 8111 10567.5 14622.5 DHO3 MAD161 G/CC -2.089 0.579 0.0732428 8111 10567.5 14622.5 DHO4 MAD161 G/CC -1. 617 0.579 0.0647408 8111 10567.5 14622.5 DHO2 MAD161 G/CC -0. 602 0.564 0. 184679 8111 10567.5 14622.5 RHOB MAD161 G/CC 1.296 3.238 2.41534 8115 10565.5 14622.5 DRHO MAD161 G/CC -2.074 0. 652 0.0325083 8115 10565.5 14622.5 RPD MAD161 OHMM 0.22 2000 19.2674 8115 10585.5 14642.5 RPM MAD161 OHMM 0. 14 2000 14.5308 8115 10585.5 14642.5 RPS MAD161 OHMM 0.49 2000 9.26727 8115 10585.5 14642.5 RPX MAD161 OHMM 0.32 2000 6.54047 8115 10585.5 14642.5 FET MAD161 HR 26.82 1009.8 167.829 8115 10585.5 14642.5 GR MAD161 API 11. 66 442 75.0785 23968 2646 14636.5 PEF MAD161 B/E 0.89 13.71 2.34311 8115 10565.5 14622.5 RAT MAD161 FPH 0.04 2836. 6 264 . 917 8293 10554 14700 NPHI MAD161 PU 3.35 50.75 21.9952 8114 10551 14607.5 First Reading For Entire File 2646 Last Reading For Entire File 14700 File Trailer Service name STSLIB.010 Service Sub Level Name Version Number 1 0 0 Date of Generation 11/01/17 Maximum Physical Record65535 File Type LO Next File Name STSLIB.011 Physical EOF Tape Trailer Service name LISTPE Date 11/01/17 Origin STS Tape Name UNKNOWN Continuation Number 01 Next Tape Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name LISTPE Date 11/01/17 Origin STS Reel Name UNKNOWN Continuation Number 01 Next Reel Name UNKNOWN Comments STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File
