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Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 02/09/2024 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 02/09/2024. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through 02/09/2024. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404 Report of Sundry Operations. If you have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Supervisor Hilcorp North Slope, LLC Digitally signed by Oliver Sternicki DN: cn=Oliver Sternicki, c=US, o=Hilcorp North Slope LLC, ou=PBU, email=oliver.sternicki@hilcorp.com Date: 2024.02.09 11:15:58 -09'00' Oliver Sternicki Hilcorp North Slope LLC. Surface Casing by Conductor Annulus Cement, Corrosion Inhibitor Top-off Report of Sundry Operations (10-404) 02/09/2024 Well Name PTD # API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date L-293 223020 500292374900 30 8/29/2023 S-09A 214097 500292077101 2 9/19/2023 S-102A 223058 500292297201 2 9/19/2023 S-105A 219032 500292297701 10 9/19/2023 S-109 202245 500292313500 7 9/19/2023 S-110B 213198 500292303002 35 9/19/2023 S-113B 202143 500292309402 10 9/19/2023 S-115 202230 500292313000 4 9/19/2023 S-116A 213139 500292318301 4 9/19/2023 S-117 203012 500292313700 3 9/19/2023 S-118 203200 500292318800 9 9/19/2023 S-122 205081 500292326500 5 9/19/2023 S-125 207083 500292336100 2 9/19/2023 S-126 207097 500292336300 3 9/19/2023 S-134 209083 500292341300 35 9/19/2023 S-200A 217125 500292284601 7 9/19/2023 S-202 219120 500292364700 13 9/19/2023 S-210 219057 500292363000 10 9/19/2023 S-213A 204213 500292299301 4 9/19/2023 S-215 202154 500292310700 3 9/19/2023 S-216 200197 500292298900 4 9/19/2023 S-41A 210101 500292264501 3 9/19/2023 W-16A 203100 500292204501 2 9/23/2023 W-17A 205122 500292185601 3 9/23/2023 Well Name PTD #API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date W-19B 210065 500292200602 8 9/23/2023 W-21A 201111 500292192901 8 9/23/2023 W-32A 202209 500292197001 4 9/23/2023 W-201 201051 500292300700 44 9/23/2023 W-202 210133 500292343400 6 9/23/2023 W-204 206158 500292333300 3 9/23/2023 W-205 203116 500292316500 3 9/23/2023 W-207 203049 500292314500 3 9/23/2023 W-211 202075 500292308000 8 9/23/2023 W-213 207051 500292335400 3 9/23/2023 W-214 207142 500292337300 10 9/23/2023 W-215 203131 500292317200 2 9/23/2023 W-223 211006 500292344000 7 9/23/2023 Z-69 212076 500292347100 2.0 27 1.5 10/24/2023 S-128 210159 500292343600 11 12/27/2023 S-135 213202 500292350800 16 12/27/2023 V-113 202216 500292312500 24 12/31/2023 V-114A 203185 500292317801 5 12/31/2023 V-122 206147 500292332800 5 12/31/2023 V-205 206180 500292333800 2 12/31/2023 V-207 208066 500292339000 8 12/31/2023 V-214 205134 500292327500 5 12/31/2023 V-215 207041 500292335100 2 12/31/2023 V-218 207040 500292335000 5 12/31/2023 V-224 208154 500292340000 16 12/31/2023 V-225 209118 500292341900 6 12/31/2023 V-01 204090 500292321000 3 1/1/2024 V-02 204077 500292320900 5 1/1/2024 V-04 206134 500292332200 5 1/1/2024 V-102 202033 500292307000 8 1/1/2024 V-104 202142 500292310300 5 1/1/2024 V-220 208020 500292338300 4 1/1/2024 W-204 206158 500292333300 3 9/23/2023 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU W-204 Temporary Jet Pump Installation Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 206-158 50-029-23333-00-00 12630 Conductor Surface Intermediate Production Liner 5120 81 3309 5820 7021 12628 20" 10-3/4" 7-5/8" 4-1/2" 5120 29 - 110 29 - 3338 27 - 5847 5607 - 12628 29 - 110 29 - 3320 27 - 5120 5067 - 5120 None 770 2480 4790 7500 None 2280 5210 6890 8430 5904 - 12584 4-1/2" 12.6# 13Cr80 25 - 5341 5129 - 5120 Structural 4-1/2" BKR Premier Packer 5266, 4933 5266 4933 Aras Worthington for Torin Roschinger Operations Manager Tyson Shriver tyson.shriver@hilcorp.com 907-564-4542 PRUDHOE BAY, Polaris Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028261 25 - 4969 N/A N/A 1407 1717 5414 6822 2451 2808 950 1000 280 440 323-461 13b. Pools active after work:Polaris Oil No SSSV STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 9:16 am, Nov 02, 2023 Digitally signed by Aras Worthington (4643) DN: cn=Aras Worthington (4643) Date: 2023.11.01 16:14:55 -08'00' Aras Worthington (4643) ACTIVITY DATE SUMMARY 9/17/2023 ***WELL FLOWING ON ARRIVAL*** ***SUBSIDENCE DRIFT TO 2500' TVD WITH 20' x 3.70" DUMMY WHIPSTOCK. NO ISSUES. *** SET 3.81 X-CATCHER @ 5292' MD PULL BK-LGLV FROM ST # 3 @ 3509' MD PULL BK-SO FROM ST # 1 @ 5102' MD SET BK-DGLV IN ST #3 SET BK-DGLV IN ST #1 *** CONTINUE ON 9/18/2023 *** 9/17/2023 T/I/O= 811/933/192 Temp=S/I (TFS Unit 4 Assist SL with Load and Test) Pumped 34 bbls of Crude down TBG while SL Brushed. **********WSR Continued on 9/18/2023************ 9/18/2023 *** CONTINUE FROM 9/17/2023 *** PULL 4-1/2" X-CATCHER FROM 5292' MD OPEN CMD SLD SLV @ 5221' MD LOAD IA 140 BBLS PUMPED CLOSE CMD SLD SLV @ 5221' MD SET 4-1/2" XX-PLUG @ 5292' MD (MISSING 1 STEEL NUBBIN FROM X-LINE) BLEED GAS OFF TUBING *** CONTINUE ON 9/19/2023 9/18/2023 ********WSR continued from 9/17/2023********** (TFS Unit 4 Assist SL with Load and Test) Pumped 140 bbls of crude down IA for load, further pumped 40 bbls of Crude down IA while slickline attempted to Close SS. Further Pumped 82 bbls of Crude down TBG for Load. Pumped 13 bbls of DSL down the TBG to reload. *********WSR Continued on 9/19/2023************* 9/19/2023 *** CONTINUE FROM 9/18/2023 *** BLEED GAS OFF IA ATTEMPT MIT-T (FAIL) EQ & PULL 3.81'' XX-PLUG FROM 5292' MD SET 3.81'' PX PLUG BODY @ 5292'' MD (26" OAL, 4 x 1/4" PORTS SET PX-PRONG 5292' MD(91" OAL, 1.75" FN & BODY) ATTEMPT MIT-T (FAIL) (called out greace crew) T-BIRD PERFORMED PASSING MIT-T TO 3,000 PSI. (MAX APPLIED) (see log) T-BIRD PERFORMED PASSING CMIT-TxIA TO 4,400 PSI. (MAX APPLIED) (see log) RAN 3.70" CENT, 4-1/2'' BLB, 4-1/2" 42 BO w/ POSITIVE KEYS TO CMD SLD SLV @ 5221' MD (no pressrue change, sheared) ***WSR CONT ON 9-20-23*** Daily Report of Well Operations PBU W-204 Daily Report of Well Operations PBU W-204 9/19/2023 *********WSR Continued from 9/18/2023************* (TFS unit 4 asist SL with load and test) Pressured TBG to 1000 psi with 30 bbls of Crude to verify plug set. Attempted MIT-T x2 and discovered WV leaking substantially down FL. Grease Crew serviced WV. **MIT-T PASSED*** Max Applied Pressure= 3000psi. Target Pressure=2750. Pumped .5 bbls Crude down TBG to reach Max applied pressure of 3004 psi. 1st 15 Min TBG lost 121 psi. 2nd 15 Min TBG lost 41 psi. TBG lost 162 psi in a 30 min test. Returned 1 bbls. ***CMIT TxIA PASSED**** Max Applied Pressure= 4400 psi. Target Pressure= 3960 psi. Pumped 4 bbls Crude down TBG/IA to reach Max applied pressure of 4410/4416. 1st 15 Min TBG/IA lost 128/110 psi. 2nd 15 Min TBG/IA lost 48/45 psi. TBG/IA lost 176/155 psi in a 30 min test. Returned 4 bbls. ***********WSR Continued on 9/20/2023*********** 9/20/2023 **********WSR Continued from 9/19/2023*********** (TFS Unit 4 Assist SL with Load and Test) Pumped 65 bbls of Crude down IA through SS taking returns up TBG to Production. TxIA Comms verified. DSO Notified of well status upon TFS Departure. Final WHPS = 1000/315/189 9/20/2023 ***WSR CONT FROM 9-19-23*** RAN 3.70" CENT, 4-1/2'' BLB, 4-1/2" 42 BO (POSITIVE KEYS) TO CMD SLD SLV @ 5221' MD (pressure change, not sheared) PULLED PX-PRONG FROM 5292' MD T-BIRD PUMPED ~15bbls CRUDE @ 2BPM DOWN IA TO CONFIRM SLEEVE IS OPEN (no issues) RAN 3.70" CENT, 4-1/2" BRUSH, 4-1/2" 42 BO (POSITIVE KEYS) TO CMD SLD SLV @ 5,221' MD (verified open, sheared) RAN 4-1/2" 16C REVERSE CIRCULATING JET PUMP(87" oal, 38" center of packing to center of packing, secondary lock down installed) TO CMD SLD SLV @ 5,221' MD RAN 4-1/2" CHECK SET(sheared) ***WELL LEFT S/I ON DEPARTURE, DSO NOTIFIED OF WELL STATUS*** 9/28/2023 Pressure test PRV's to 4100 PSI, Freeze protect W-213 TBG w. 23 bbls Diesel, FL with 3 bbls 60/40 9/29/2023 T/I/O = SSV/1100/200. Temp = SI. IA & OA FL (Jet Pump ops). OA FL @ near surface, IA FL @ 5238' (136' below sta#1 SO, 137 bbl fill). Start loading 4 500 bbl tanks for pump job from source well (W-213). Choke on S-riser having issues. Shut down job for the day, approx 18" of fluid loaded in each tank. Blew all hard line down with gas. SI all hard line block valves to secure location. SV, WV, SSV = C. MV = O. IA & OA = OTG. 17:00. 9/30/2023 T/I/O = SSV/1000/200. Temp = SI. (Assist Jet pump OP's). Complete loading 4 500 bbl tanks w/ water from W-213. Start pumping down W-204 back side. slowly ramping rate up to 6830 bpd. Start loading tanks from W-213 at a matching rate. Pumped a total of 800 bbls down W-204 IA @ 2600 psi during day shift. Hand off to night shift. Daily Report of Well Operations PBU W-204 10/2/2023 T/I/O = 900/800/150 Freeze Protect TBG/FL/IA. (JET PUMP) LRS Unit 72 Pumped 2 bbls 60/40 followed by 66 bbls crude down the IA. Pump 2 bbls 60/40 followed by 38 bbls Crude down the TBG. Pump 3 bbls 60/40, 6 bbls Crude, 5 bbls 60/40, 16 bbls Crude, and 1 bbls 60/40 down the Flowline for freeze protect. PCC close divert, pressure FL to 1500 psi. Tags hung on IA and WG. DSO notified of well status. 10/9/2023 Pump 1004 bbls Processed water down W-204 FL. Freeze protect FL w/ 6 bbls 60/40, 20 bbls Crude 10/10/2023 T/I/O= 1100/0/240. LRS 72 Assist Jet Pump Test on W-204 (JET PUMP). Pumped 23 bbls of 60/40 MeOH into the TBG. This is the water outlet well. Final T/I/O= 1200/0/240. 10/10/2023 JET PUMP Pump Produced Water down IA to test Jet Pump. Pumped 2145 BBLS PW from W-213 down the IA on W-204. Continue WSR on 10/11/23 10/11/2023 ** Job Continued from 10-10-23** JET PUMP Pump Produced Water down IA to test Jet Pump. Pumped 6966 BBLS PW from W-213 down the IA on W-204. 10/12/2023 **Job contiuned form 10/11/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6879 BBLS PW form W-213 down the IA on W- 204. 10/13/2023 **Job contiuned form 10/12/23** (JET PUMP) Produced Water down IA to test jet Pump. Pumped 7193 BBLS PW form W-213 down the IA on W- 204. 10/14/2023 **Job contiuned form 10/13/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6906 BBLS PW form W-213 down the IA on W- 204. 10/15/2023 **Job continued form 10/14/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 5611 BBLS PW form W-213 down the IA on W- 204. 10/16/2023 **Job continued from 10/15/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6391 BBLS PW form W-213 down the IA on W- 204. 10/17/2023 **Job continued form 10/16/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6805 BBLS PW form W-213 down the IA on W- 204. 10/18/2023 **Job continued form 10/17/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6894 BBLS PW form W-213 down the IA on W- 204. 10/19/2023 *** Job Continuned form 10/18/23** (JET PUMP) Produced Water down IA to test jet Pump. Punp 6860 BBLS PW form W-213 down the IA on W- 204 10/20/2023 T/I/O=357/0/300 Freeze Protect IA, TBG, & FL ( Jet Pump ) Pump 5 bbls 60/40 & 65 bbls crude down IA with flowpath up tbg to flowline. Pump 2 bbls 60/40 & 38 bbls crude down tbg. Pump 9 bbls 60/40 & 22 bbls crude down flowline (WOA recipe ) FWHPs=0/0/300 10/20/2023 **Continued from 10/19/23** (JET PUMP) Pump Produced Water down IA to test jet pump. Pumed 2404 BBLS PW from W-213 down the IA on W-204. Cumulative total of Produced Water pumped down W-204 is 68,030 BBLS PW. 10/21/2023 ***WELL S/I ON ARRIVAL*** PULL JET PUMP @ 5221' MD CLOSE SLEEVE @ 5221' MD SET 4-1/2'' X CATCHER @ 5313' MD PULL BK-DGLV FROM STA# 1 @ 5102' MD PULL BK-DGLV FROM STA# 3 @ 3509' MD SET BK-GLV (16/64'', tro- 1891) IN STA# 3 @ 3509' MD ***WSR CONT. ON 10/22/2023*** 10/22/2023 ***WSR CONT. FROM 10/21/2023*** SET BK-OGLV (20/64'') IN STA# 1 @ 5102' MD PULL X CATCHER @ 5313' MD ***WELL LEFT S/I ON DEPARTURE*** 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU W-204 Temporary Jet Pump Installation Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 206-158 50-029-23333-00-00 12630 Conductor Surface Intermediate Production Liner 5120 81 3309 5820 7021 12628 20" 10-3/4" 7-5/8" 4-1/2" 5120 29 - 110 29 - 3338 27 - 5847 5607 - 12628 29 - 110 29 - 3320 27 - 5120 5067 - 5120 None 770 2480 4790 7500 None 2280 5210 6890 8430 5904 - 12584 4-1/2" 12.6# 13Cr80 25 - 5341 5129 - 5120 Structural 4-1/2" BKR Premier Packer 5266, 4933 5266 4933 Aras Worthington for Torin Roschinger Operations Manager Tyson Shriver tyson.shriver@hilcorp.com 907-564-4542 PRUDHOE BAY, Polaris Oil Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028261 25 - 4969 N/A N/A 1407 1717 5414 6822 2451 2808 950 1000 280 440 323-461 13b. Pools active after work:Polaris Oil No SSSV STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations Digitally signed by Aras Worthington (4643) DN: cn=Aras Worthington (4643) Date: 2023.11.01 16:14:55 -08'00' Aras Worthington (4643) By Grace Christianson at 11:28 am, Nov 02, 2023 DSR-11/2/23 RBDMS JSB 110823 ACTIVITY DATE SUMMARY 9/17/2023 ***WELL FLOWING ON ARRIVAL*** ***SUBSIDENCE DRIFT TO 2500' TVD WITH 20' x 3.70" DUMMY WHIPSTOCK. NO ISSUES. *** SET 3.81 X-CATCHER @ 5292' MD PULL BK-LGLV FROM ST # 3 @ 3509' MD PULL BK-SO FROM ST # 1 @ 5102' MD SET BK-DGLV IN ST #3 SET BK-DGLV IN ST #1 *** CONTINUE ON 9/18/2023 *** 9/17/2023 T/I/O= 811/933/192 Temp=S/I (TFS Unit 4 Assist SL with Load and Test) Pumped 34 bbls of Crude down TBG while SL Brushed. **********WSR Continued on 9/18/2023************ 9/18/2023 *** CONTINUE FROM 9/17/2023 *** PULL 4-1/2" X-CATCHER FROM 5292' MD OPEN CMD SLD SLV @ 5221' MD LOAD IA 140 BBLS PUMPED CLOSE CMD SLD SLV @ 5221' MD SET 4-1/2" XX-PLUG @ 5292' MD (MISSING 1 STEEL NUBBIN FROM X-LINE) BLEED GAS OFF TUBING *** CONTINUE ON 9/19/2023 9/18/2023 ********WSR continued from 9/17/2023********** (TFS Unit 4 Assist SL with Load and Test) Pumped 140 bbls of crude down IA for load, further pumped 40 bbls of Crude down IA while slickline attempted to Close SS. Further Pumped 82 bbls of Crude down TBG for Load. Pumped 13 bbls of DSL down the TBG to reload. *********WSR Continued on 9/19/2023************* 9/19/2023 *** CONTINUE FROM 9/18/2023 *** BLEED GAS OFF IA ATTEMPT MIT-T (FAIL) EQ & PULL 3.81'' XX-PLUG FROM 5292' MD SET 3.81'' PX PLUG BODY @ 5292'' MD (26" OAL, 4 x 1/4" PORTS SET PX-PRONG 5292' MD(91" OAL, 1.75" FN & BODY) ATTEMPT MIT-T (FAIL) (called out greace crew) T-BIRD PERFORMED PASSING MIT-T TO 3,000 PSI. (MAX APPLIED) (see log) T-BIRD PERFORMED PASSING CMIT-TxIA TO 4,400 PSI. (MAX APPLIED) (see log) RAN 3.70" CENT, 4-1/2'' BLB, 4-1/2" 42 BO w/ POSITIVE KEYS TO CMD SLD SLV @ 5221' MD (no pressrue change, sheared) ***WSR CONT ON 9-20-23*** Daily Report of Well Operations PBU W-204 Daily Report of Well Operations PBU W-204 9/19/2023 *********WSR Continued from 9/18/2023************* (TFS unit 4 asist SL with load and test) Pressured TBG to 1000 psi with 30 bbls of Crude to verify plug set. Attempted MIT-T x2 and discovered WV leaking substantially down FL. Grease Crew serviced WV. **MIT-T PASSED*** Max Applied Pressure= 3000psi. Target Pressure=2750. Pumped .5 bbls Crude down TBG to reach Max applied pressure of 3004 psi. 1st 15 Min TBG lost 121 psi. 2nd 15 Min TBG lost 41 psi. TBG lost 162 psi in a 30 min test. Returned 1 bbls. ***CMIT TxIA PASSED**** Max Applied Pressure= 4400 psi. Target Pressure= 3960 psi. Pumped 4 bbls Crude down TBG/IA to reach Max applied pressure of 4410/4416. 1st 15 Min TBG/IA lost 128/110 psi. 2nd 15 Min TBG/IA lost 48/45 psi. TBG/IA lost 176/155 psi in a 30 min test. Returned 4 bbls. ***********WSR Continued on 9/20/2023*********** 9/20/2023 **********WSR Continued from 9/19/2023*********** (TFS Unit 4 Assist SL with Load and Test) Pumped 65 bbls of Crude down IA through SS taking returns up TBG to Production. TxIA Comms verified. DSO Notified of well status upon TFS Departure. Final WHPS = 1000/315/189 9/20/2023 ***WSR CONT FROM 9-19-23*** RAN 3.70" CENT, 4-1/2'' BLB, 4-1/2" 42 BO (POSITIVE KEYS) TO CMD SLD SLV @ 5221' MD (pressure change, not sheared) PULLED PX-PRONG FROM 5292' MD T-BIRD PUMPED ~15bbls CRUDE @ 2BPM DOWN IA TO CONFIRM SLEEVE IS OPEN (no issues) RAN 3.70" CENT, 4-1/2" BRUSH, 4-1/2" 42 BO (POSITIVE KEYS) TO CMD SLD SLV @ 5,221' MD (verified open, sheared) RAN 4-1/2" 16C REVERSE CIRCULATING JET PUMP(87" oal, 38" center of packing to center of packing, secondary lock down installed) TO CMD SLD SLV @ 5,221' MD RAN 4-1/2" CHECK SET(sheared) ***WELL LEFT S/I ON DEPARTURE, DSO NOTIFIED OF WELL STATUS*** 9/28/2023 Pressure test PRV's to 4100 PSI, Freeze protect W-213 TBG w. 23 bbls Diesel, FL with 3 bbls 60/40 9/29/2023 T/I/O = SSV/1100/200. Temp = SI. IA & OA FL (Jet Pump ops). OA FL @ near surface, IA FL @ 5238' (136' below sta#1 SO, 137 bbl fill). Start loading 4 500 bbl tanks for pump job from source well (W-213). Choke on S-riser having issues. Shut down job for the day, approx 18" of fluid loaded in each tank. Blew all hard line down with gas. SI all hard line block valves to secure location. SV, WV, SSV = C. MV = O. IA & OA = OTG. 17:00. 9/30/2023 T/I/O = SSV/1000/200. Temp = SI. (Assist Jet pump OP's). Complete loading 4 500 bbl tanks w/ water from W-213. Start pumping down W-204 back side. slowly ramping rate up to 6830 bpd. Start loading tanks from W-213 at a matching rate. Pumped a total of 800 bbls down W-204 IA @ 2600 psi during day shift. Hand off to night shift. Daily Report of Well Operations PBU W-204 10/2/2023 T/I/O = 900/800/150 Freeze Protect TBG/FL/IA. (JET PUMP) LRS Unit 72 Pumped 2 bbls 60/40 followed by 66 bbls crude down the IA. Pump 2 bbls 60/40 followed by 38 bbls Crude down the TBG. Pump 3 bbls 60/40, 6 bbls Crude, 5 bbls 60/40, 16 bbls Crude, and 1 bbls 60/40 down the Flowline for freeze protect. PCC close divert, pressure FL to 1500 psi. Tags hung on IA and WG. DSO notified of well status. 10/9/2023 Pump 1004 bbls Processed water down W-204 FL. Freeze protect FL w/ 6 bbls 60/40, 20 bbls Crude 10/10/2023 T/I/O= 1100/0/240. LRS 72 Assist Jet Pump Test on W-204 (JET PUMP). Pumped 23 bbls of 60/40 MeOH into the TBG. This is the water outlet well. Final T/I/O= 1200/0/240. 10/10/2023 JET PUMP Pump Produced Water down IA to test Jet Pump. Pumped 2145 BBLS PW from W-213 down the IA on W-204. Continue WSR on 10/11/23 10/11/2023 ** Job Continued from 10-10-23** JET PUMP Pump Produced Water down IA to test Jet Pump. Pumped 6966 BBLS PW from W-213 down the IA on W-204. 10/12/2023 **Job contiuned form 10/11/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6879 BBLS PW form W-213 down the IA on W- 204. 10/13/2023 **Job contiuned form 10/12/23** (JET PUMP) Produced Water down IA to test jet Pump. Pumped 7193 BBLS PW form W-213 down the IA on W- 204. 10/14/2023 **Job contiuned form 10/13/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6906 BBLS PW form W-213 down the IA on W- 204. 10/15/2023 **Job continued form 10/14/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 5611 BBLS PW form W-213 down the IA on W- 204. 10/16/2023 **Job continued from 10/15/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6391 BBLS PW form W-213 down the IA on W- 204. 10/17/2023 **Job continued form 10/16/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6805 BBLS PW form W-213 down the IA on W- 204. 10/18/2023 **Job continued form 10/17/23** (JET PUMP) Produced Water down IA to test jet Pump. Pump 6894 BBLS PW form W-213 down the IA on W- 204. 10/19/2023 *** Job Continuned form 10/18/23** (JET PUMP) Produced Water down IA to test jet Pump. Punp 6860 BBLS PW form W-213 down the IA on W- 204 10/20/2023 T/I/O=357/0/300 Freeze Protect IA, TBG, & FL ( Jet Pump ) Pump 5 bbls 60/40 & 65 bbls crude down IA with flowpath up tbg to flowline. Pump 2 bbls 60/40 & 38 bbls crude down tbg. Pump 9 bbls 60/40 & 22 bbls crude down flowline (WOA recipe ) FWHPs=0/0/300 10/20/2023 **Continued from 10/19/23** (JET PUMP) Pump Produced Water down IA to test jet pump. Pumed 2404 BBLS PW from W-213 down the IA on W-204. Cumulative total of Produced Water pumped down W-204 is 68,030 BBLS PW. 10/21/2023 ***WELL S/I ON ARRIVAL*** PULL JET PUMP @ 5221' MD CLOSE SLEEVE @ 5221' MD SET 4-1/2'' X CATCHER @ 5313' MD PULL BK-DGLV FROM STA# 1 @ 5102' MD PULL BK-DGLV FROM STA# 3 @ 3509' MD SET BK-GLV (16/64'', tro- 1891) IN STA# 3 @ 3509' MD ***WSR CONT. ON 10/22/2023*** 10/22/2023 ***WSR CONT. FROM 10/21/2023*** SET BK-OGLV (20/64'') IN STA# 1 @ 5102' MD PULL X CATCHER @ 5313' MD ***WELL LEFT S/I ON DEPARTURE*** 7. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in thes pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By:Date: APPROVED BY THE AOGCCCOMMISSIONER PBU W-204 Temporary Jet Pump Installation Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 206-158 50-029-23333-00-00 ADL 0028261 12630 Conductor Surface Intermediate Production Liner 5120 81 3309 5820 7021 12628 20" 10-3/4" 7-5/8" 4-1/2" 5120 29 - 110 29 - 3338 27 - 5847 5607 - 12628 994 29 - 110 29 - 3320 27 - 5120 5067 - 5120 None 770 2480 4790 7500 None 2280 5210 6890 8430 5904 - 12584 4-1/2" 12.6# 13Cr80 25 - 53415129 - 5120 Structural 4-1/2" BKR PREM No SSSV 5266 4933 Date: Torin Roschinger Operations Manager Tyson Shriver Tyson.Shriver@hilcorp.com 907-564-4542 PRUDHOE BAY Current Pools: POLARIS OIL Proposed Pools: POLARIS OIL Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov 9/1/2023 By Grace Christianson at 3:57 pm, Aug 14, 2023 323-461 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2023.08.14 14:20:25 -08'00' Torin Roschinger (4662) * Approved for reverse circulating jet pump 30 day trial. * 30 minute charted CMIT-IA or MIT-IA to 4400 psi. * Fluid filled OA and open surface casing shoe for daily pressure monitoring of pressure at surface casing shoe. * IA SSV high pressure trip pressure not to exceed 4400 psi. IA low pressure trip pressure to to be no lower than 50% of maximum injection pressure. * Production tubing SSV low pressure trip not to be lower than 100 psi. * SSV closure on IA will initiate closure within 2 minutes on SSV on production tubing and visa versa. 10-404 SFD 8/22/2023 DSR-8/14/23 994 MGR18AUG23*&:JLC 8/23/2023 08/23/23 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2023.08.23 09:21:50 -08'00' RBDMS JSB 082423 Jet Pump Trial Well: W-204 PTD: 206-158 API: 50-029-23333-00 Well Name:W-204 Permit to Drill:206-158 Current Status:Operable API Number:50-029-23333-00 Estimated Start Date:September 1st, 2023 Estimated Duration:30 days Regulatory Contact:Abbie Barker Revision:0 First Call Engineer:Tyson Shriver (907) 564-4542 (O)(406) 690-6385 (M) Second Call Engineer:Josh Stephens (907) 777-8420 (O)(970) 779-1200 (M) Current Bottom Hole Pressure:1,494 psi @ 5,000’ TVDss 5.75 ppg | SBHP 8/6/2018 Max Anticipated Surface Pressure:994 psi (Based on 0.1 psi/ft gas gradient) Last SI WHP:400 psi 1/4/2022 Min ID:3.688” @ 5,363’ MD Hook Hanger Assembly Max Angle:>70 deg @ ~5,547’ MD Brief Well Summary: W-204 is a tri-lateral gas lifted producer drilled and completed in the Schrader Bluff formation. Jet pumps are being analyzed for use in existing Schrader Bluff wells and planned Schrader Bluff development. Objective: W-204 will be temporarily converted to jet pump for 30 days to help inform a decision on the optimal lift mechanism to be used in the Schrader Bluff wells. Procedural Steps: Slickline – 1. Set catcher. Pull LGLVs from St#’s 1, 2 & 3. 2. Set DGLVs in St#’s 2 & 3. Load IA and set DGLV in St #1. a. Option to open sliding sleeve and use it as a flow path while loading IA rather than St #1 and then close the sleeve. 3. Load the tubing and set plug in X-nipple below production packer. 4. CMIT-TxIA to 4,400 psi (max power fluid supply pressure = 4,000 psi) 5. Open sliding sleeve and pump ~10 bbls to confirm sleeve is open. 6. Set reverse circulating jet pump in sliding sleeve at 5,221’ MD. Pump ~50 bbls down IA at 2 bpm to confirm flow path. Operations – 1. Produce W-204 with jet pump for 30 days. a. Optimize power fluid (produced water or source water) rates and changeout jet pump as necessary. Slickline – 1. Pull jet pump and close sliding sleeve post-trial. 2. Install LGLVs. Attachments – Current Wellbore Schematic Proposed Wellbore Schematic Approved Sundry Change Form Jet Pump Trial Well: W-204 PTD: 206-158 API: 50-029-23333-00 Current Wellbore Schematic: Jet Pump Trial Well: W-204 PTD: 206-158 API: 50-029-23333-00 Jet Pump Trial Well: W-204 PTD: 206-158 API: 50-029-23333-00 Proposed Wellbore Schematic: Jet Pump Trial Well: W-204 PTD: 206-158 API: 50-029-23333-00 Jet Pump Trial Well: W-204 PTD: 206-158 API: 50-029-23333-00 Approved Sundry Change Form: Changes to Approved Sundry Procedure Date: Subject: Sundry #: Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to the AOGCC by the “first call” engineer. AOGCC written approval of the change is required before implementing the change. Step Page Date Procedure Change HAK Prepared By (Initials) HAK Approve d By (Initials) AOGCC Written Approval Received (Person and Date) Approval: Operations Manager Date Prepared: Operations Engineer Date Image Pro~ct Well History File Covage XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. Q ~ - 1 Jr g Well History File Identifier Organizing (done) ~.~.,ced iiiuiiiimuiui R~~a~~~~, ummuuiuoi RES AN DIGITAL DATA OVERSIZED (Scannable) Color Items: ~skettes, No. ~ 111 ^ 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: ~ ~ /s/ Pro "ect Proofiin J g II I II II II I I III I I III BY: Maria Date: /s/ Scanning Preparation ~_ x 30 = ~ ~ d + =TOTAL PAGES f a~ (Count does not include cover sheet) BY: Maria Date:. ~ /a /s/ Production Scanning Stage 1 Page Count from Scanned File: ~ ~ L (Count does include cov sheet) Page Count Matches Number in Scanning Preparation: YES ~/N~O BY: Maria Date: ~ 'r ~ ~© /s/ ~ M - Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ nnin is com lete at this Dint unless rescanning is required. II (II'I II I II II I I III Sca g P P Rescanned III IIIIIIIIIII IIIII BY: Maria Date:. /s/ Comments about this file: Quality Checked III IIIII III III III 10!6/2005 Well History File Cover Page.doc ~ ~ -:x "~` ~~ ~.: ~~~ .~~. 3 ' V -::' '3 + '. x s~ 'YT; ~< ' ,~~ .'!"rte' n y >. . F b '~ ~. ~.~ ,. ~ ~6 ~ , .~~ ~~ ~:~. q ~ ~; MICROFILMED 6/30/2010 DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE C:\temp\Temporary Internet Files\OLK9\Microfilm_Marker.doc ~chlumherger Alaska Data & Consulting Services 2525 Gambell Slreel, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job k Log Description NO. 5481 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Date BL Color cn U-10 83S0-00048 CROSSFLOW DETECT/IBP C-13A AVYO-00060 C CBL - L 03/02/10 1 1 _ AGI-01 A AVYO-00056 USIT ..- 02/16/10 1 1 03-37 BBSS-00002 SONIC SCANNE 02/10!10 1 1 __ _ 03-37 BBSS-00002 R-MSIP L' SS-ANALYSIS BEHIND CSG 02/14/10 1 1 ___ 07-21 B3SQ-00045 . SPINNER LOG/PRE-IBP L 02/14/10 1 1 P2-48 AVYO-00057 PROD PROFILE REDO 02/24/10 1 i AGI-OtA 89RH-00014 JEWELRY LOG W/PRESSITEMP 02/11/10 1 1 W-204 8148-00097 GLS '~ ~ ~ 02/27/10 1 1 09-41 BBSK-00010 CROSSFLOW RECORD 03/01/10 1 1 _ 15-27 BBUO-00006 ~ RST GRAVEL PACK 03/06/10 1 1 15-27 BBUO-00006 LDL - (} 03/05/10 03/05/10 1 1 MPC-22A 05-08 BAUD-00007 BBSK-00001 MEM PPRO W/GLS REVISED RST ~ I ~ 02/11/10 1 1 1 1 D-048 E-198 10715393 11767134 ' L MCNL REVISED ~ ~ MCNL REVISED 01/17/10 04!07/04 1 1 1 1 18-30A 82NJ-00052 MCNL _ ~ ~ 07/21/07 1 W-56 09AKA0186 OH MWD/LWD EDIT _ - ~ 01/31/10 1 1 12/19/09 2 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: n~, ~-....~ .......:..... . I'etrulectfinical Data Center LR2-1 90U E. t3«~nson Blvd. Alaska Data & Consulting Services 2525 Gambell Strest, Sude 400 Anchorage, AK 99503-2838 OY/1(1!111 _ . (~ 1 +~r: ~ DATA SUBMITTAL COMPLIANCE REPORT 3/26/2009 Permit to Drill 2061580 Well Name/No. PRUGHOE BAY UN POL W-204 Operator BP EXPLORATION (ALASKA) INC API No. 50-029-23333-00-00 MD 12630 TVD 5120 Completion Date 3/1/2007 Complet ion Status 1-OIL Curren t Status 1-OIL UIC N - __ - --- - -- - REQUIRED INFORMATION ~~ 1 ylH Mud Log IVo Samples No Directional Survey Ye DATA INFORMATION Types Electric or Other Logs Run: Text too long for this data field -see 10-407 (data taken from Logs Portion of Master Well Data Maint Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH / T Med/Frrnt Number Name Scale Media No Start Stop CH Received Comments ED D Asc Directional Survey 0 12630 Open 3/13/2007 t Directional Survey 0 12630 Open 3/13/2007 E D Asc Directional Survey 0 8930 Open 3/13/2007 PB 1 pt~ Directional Survey 0 8930 Open 3/13/2007 PB 1 ~~ log Cement Evaluation 5 Col 90 5600 Case 3/22/2007 CBL, USIT, GPIT, GR, CCL 2-Feb-2007 ~~ og r~See Notes Col 4499 5804 Case 3/22/2007 Modular Dynamic Tester Log, GR 16-Jan-2007 // D C Lis 15590~nduction/Resistivity 108 12629 Open 10/26/2007 LIS Veri, GR, ROP, FET, RPS, DRHO, NPHI w/PDS graphics ` Log Induction/Resistivity 2 Blu 1 108 12630 Open 10/26/2007. MD Vision Service 29-Jan- I // J~tOg Induction/Resistivity 2 Blu 1 108 12630 Open 10/26/2007 2007 TVD Vision Service 29-Jan- ~ 2007 D C Lis 15591 "Induction/Resistivity 108 8929 Open 10/26/2007 P61 LIS Veri, GR, ROP, FET, RPS, DRHO, NPHI w/PDS graphics og Induction/Resistivity 2 Blu 1 108 8930 Open 10/26/2007 P61 MD Vision Service 29- Jan-2007 Log Induction/Resistivity 2 Blu 1 108 8930 Open 10/26/2007 PB1 ND Vision Service 29-Jan-2007 WeIF Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments DATA SUBMITTAL COMPLIANCE REPORT 3/26/2009 Permit to Drill 2061580 Well Name/No. PRUDHOE BAY UN POL W-204 Operator BP EXPLORATION (ALASKA) INC MD 12630 TVD 5120 Completion Date 3/1/2007 Completion Status 1-OIL Current Status 1-OIL ADDITIONAL INFORMATION f1 Well Cored? Y ~ Daily History Received? (~ N Chips Received? /Y7iV-' Formation Tops ~N API No. 50-029-23333-00-00 UIC N m. ~ ~ ~<< 1a1s/o7 Schia~erger Schlumberger-DCS 2525 Gambell St, Suhe 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job # log Description N0.4454 Company: Alaska Oil 8 Gas Cons Comm ANn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Polaris Orion Borealis Date BL Color CD W-213 V-215 Z-108 5-124 S-125P81 11661175 11594491 11212828 40014242 40015467 MEM TEMP/PRESS SURVEY CH EDIT PDC GR USIT OH WIRELINE PEX EDIT ' OH MWDA-WD EDIT OH MWDILWD EDIT 09/29/07 04/23/07 02/05!06 11/05!06 07/07/07 1 2 3 2 1 1 1 1 V-721 40015007 OH MWDILWD EDIT ~ 03124/07 2 1 V-222 40015319 OH MWDA.WD EDIT 06108107 2 1 W-210 40014842 OH MWD/LWD EDIT - 02/26/07 2 1 V-218 40015066 OH MWD/LWD EDIT 04/07/07 2 1 W-204 40014637 OH MWDILWD EDIT - 01/29/07 2 1 W-204P81 40014637 OH MWDILWD EDIT 01124107 2 1 W-204L1 40014637 OH MWDILWD EDIT 02/07/07 1 1 W-204L2 40014637 OH MWDILWD EDIT ~ 02120/07 1 1 PLEASE ACKNOWLEDGE RECEIPT BV SIGNING AND RETURNING ONE COPY EACH TO: 8P Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1- 900 EBenson Blvd. - - Anchorage AK 99508.425q _. - Date Delivered ~'~" ~ ` Schlumberger-DCS 2525 Gambell St, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth n Received byt_~, J~(~/~~ • Page 1 of 2 Maunder, Thomas E (DOA) From: Allen, Kenneth W [Kenneth".Allen@bp.com] Sent: Thursday, July 26, 2007 7:55 AM To: Maunder, Thomas E (DOA) Cc: Tirpack, Rdbert B; Engel, Harry R; Regg, James B (DOA) Subject: RE: Surface Casing Cementing Operations - W-204 (206-158} Thanks Tom. I did have a discussion with Rob Tirpack about this issue and we both came up with the same idea you mention below abolut listing the name of the inspector and WSL in our Dims morning report. I will sit down with the folks over here] and discuss the a-mail notification you mention below. Again, sorry for the cori!fusion on this issue. Ken Allen Operations Drilling Engineer Northstar Mobile: 907.748.3907 Office: 907.564.4366 e-mail: Kenneth.Allen@BP.com ___ From: Maunder, Thorns E (DOA) [mailtoaom.maunder@alaska.gov] Sent: Thursday, ]uly 26, 2007 7:39 AM To: Allen, Kenneth W ', Cc: Tirpack, Robert B; ~ngef, Harry R; Regg, ]amen B (DOA) Subject: RE: Surface using Cementing Operations - W-204 (206-i58) Thanks Ken, there is a (note on the report as you indicate. As I wrote, we were not able to find a record of the contact. For the future,:, a comment regarding such notifications should probably be carried in the body of the report similar to comments on BOP tests with the name of the Inspector as well. It may also be appropriate to have your WSL send a~ email to the general Inspector address (aoycc_prudhoe bay@alaska__.gov_). That will also send a copy to us here'~,in Anchorage. This matter is closed. fall or message with any questions. Tam Maunder, PE AOGCC From: Allen, Kenneth VV [mailto:Kenneth.Allen@bp.com] Sent: Wednesday, Julys 25, 2007 2:15 PM To: Maunder, Thomas I= (DOA) Cc: Tirpack, Robert B; angel, Harry R; Regg, James B (DOA) Subject: RE: Surface using Cementing Operations - W-204 (206-158) Tom, I just received your a-mail. I have attached our Dim's report that documented our Wellsite Leader notifying the AOGCC representative on the slope. The bottom of the report, in the remarks section, is where we document items such as this. Please take a look over this and give me a call on my cell phone (number listed below) at your convenience. I'd be happy to discuss this situation in person if you would prefer that setting. Thanks, 7/26/2007 Ken Allen Operations Drilling Engineer Northstar Mobile: 907.748.3907 Office: 907.564.4366 e-mail Kenneth.Allen@BP.com From: Maunder, Thomas E (DOA) [mailto:tom.maunder@ataska.govj Sent: Wednesday, July 25, 2007 11:50 AM To: Allen, Kenneth W Cc: Tirpack, Robert B; Engel, Harry R; Jim Regg Subject: Surface Casing Cementing Operations - W-204 (206-158} L_J Page 2 of 2 Ken, et al, I have reviewed the 407 completion report far this weft. It appears that difficulties were encountered drilling the surface hole and cementing the surface casing. On January 11, it is reported that the initial cementing operation was accomplished with very little returns. Remedial operations including pumping a 2nd stage via an installed port collar were initiated and failed to bring cement to surface. Two 1" "top jobs" were then pumped on January 12 with cement to surface after the 2nd jab. On page 4 of the drilling procedure, it is stated that the AOGCC should be notified if cement is not successfully raised to surface with the initial cementing operation. We have na record of any notice regarding no cement to surface from the initial operation. Please examine your retards with regard to this matter. Your examination should determine and document if any attempt was made to notify the Commission. If no attempt was made to contact the Commission, your response should detail the process BP will employ to assure that proper notice regarding unsuccessful primary surface cementing operations is accomplished. Call or message with any questions. Tom Maunder, PE AOGCC 7/26/2007 BP EXPLORATION ~al~y ~p@l"at10t1S R@p0~ Page 1 of 3 Operator: BP EXPLORATION Rig: NABORS 7ES Report: 13 Well: W--204 Event: DRILL+COMPLETE Date: 1/12/2007 Field: POLARIS Well Type: DEVELOPMENT Current Well Status Depth MD: 3,350.0 (ft) Casing Size: 10.750 (in) Costs in: USD Rig Accept: 06:00 1/1!2007 Est. TVD: 3,331.0 (ft) Casing (MD): 3,337.0 (ft) Daily Mud: Rig Release: Progress: (ft) Next Casing Size: 9.875 (in) Cum. Mud: Spud Date: 11/4/2207 Auth Depth: 12,662.0 (ft} Next Casing (MD): 5,861.0 (ft) Daily Well: WX Date: Hole Size: 13.500 (in) ~~~ Next Casing (lVD):5,132.0 (ft) Cum. WeII: Elev Ref: SEA LEVEL DOUDFSlTar et: 12.00/9.00/48.00 9 ~Co Geologist: Ray / Hedglin KB Elev: 81.10 (ft) Engineer: Ken Allen Tot. Personnel: 38 Supervisor. Ferguson /Frame Program: Cost Ahead: -820,000 USD, Days Ahead: -4.25 Weather: 20 mph E, -11 Fiwc -36 Gdy. Current Status:. Nippling Up BOP 24hr Summary: Pumping 677 bbls of Cement Before getting Cement to Surface, Nipple Down Diverter and 20" Hydril, Nipple Up BOP 24hr Forecast: Test BOP, RIH w/ BHA #2, P/U DP. Comments: No accidents, No injuries, No harm to the environment. 1/12/2007, 0 Hr Rig Repair NPT, .5 Hrs Rig Repair NPT fw 2007. Discarded Mongoose screens = 0. Total 2007 = 23 Screens. HSE ~ Well Control Days Since Last DAFWC: 1148 All Free Days: 12 Last Csg Test Press.: (psi) _____ Last Envir. Inadent: 7/15/2003 Last BOP Press. Test: Next BOP Press. Test: Last Safety Meeting: 1!12!2007 last Divertor Drill (D3): 1/8/2007 Last Spill Drill: 1/10/2007 No. Stop Cards: Regulatory Agency Insp: N Non-compliance Issued: N COAST GUARD INSPECI/412007 FIRE: 1/11/2007 Pump Slow Pump Rates (Circ} Slow Pump Rates (Choke} Slow Pump Rates (Kill) TVD: (ft) Stroke Rate Pressure0 Stroke Rate Pressure0 Stroke Rate Pressure() EMW: (PP9) MAASSP: (psi) Test Pressure: (psi) Kick Tolerance: (ppg} Kick Volume: (bbl) Operational Parameters ROP Daily: Rotating Weight: Daily Bit Hrs: (hr) Pum p Sta tus -Dril ling and Ri ser ROP Cum.: Pick Up Wt.: Daily Sliding Hrs:0.00 (hr) Pump Type Eff. Strokes Liner Size Circ. Rate WOB (min): Slack Off Wt.: Cum. Bit Hrs: 0 0 0 0 WOB (max): Circ. Rate Riser: RPM Min.: Circ. Rate Hole: Ann. Vel. Riser: (fUmin) RPM DH: Circ. Off Bottom: Ann. Vel. DC: (fUmin) Torq. on Bottom: Circ. On Bottom: Ann. Vel. DP: (ft/min) Torq. off Bottom: Jar Hrs since Inspect: 29 (hr) DriNin Fluid Type: WATER/BRINE 10 sec gels: (Ib/100ft~ Ca: (mg/L) ES: (mV) TimelLoc: / 10 min gels: (Ib/100ft~j K+: (mg/L) Solids: (%) Depth: 3,350.0 (ft) Fluid Loss: (cc/30min) CaC12: (%) Oil: (%) Temp: (°F) HTHP Temp: (°F) NaCI: (%) Water: (%) Density: 8.40 (ppg) HTHP WL: (cG30min) CI-: (mglL) Oil/VVater: / Funnel Visc.: 28 (s/qt) Cake: (/32'~ Sand: (°~} Dairy Cuttings: (bbl) ECD: (ppg) MBT: (ppb) HGS: (ppb) Cum. Cuttings: (bbl) PV: (cp) Lime: (ppb) LGS: (ppb) Lost Downhofe: (bbl) YP: (Ib/100ft~ PM: (mL) PfiMf: / (mUmL} Lost Surface: (bbl) PH~ O rations Summary From-To Hrs Phase Task Activity Code NPT Operation Op. Depth (hr) 00:00-02:00 2.00 SURF CEMT CMT P Pump 10.7 ppg cement with 2 Ib/bbl Cem-Net at 4 bbUmin 320 psi, 3,350 with 190 bbls pumped pressure increased to 645 psi and flow dropped from 18% to 2%. MaMained partial returns with 192 bbls away. Decreased rate to 3.5 bbls/min 475 psi, returns increased to 2% and returns were lost again with 1 ~ bbls away at 3 bbUmin 352 psi. Printed: 1/13f2007 4:56:33 AM BP FJCPLORATION Daily Operations Report Paj~e 2 of 3 Operator: BP EXPLORATION Rig: NABORS 7ES Report: 13 Well: W--204 Event: DRILL+COMPLETE Date: 1/12/2007 Field: POLARIS Well Type: DEVELOPMENT Operations Summa From-To Hrs Phase Task Activity Code NPT Operation Op. Depth (hr) 00:00-02:00 2:00 SURF CEMT CMT P Pumping a total of 407 bbls of 10.7 ppg cement. After loss of retums 3,350 fluid level remained static. 02:00-03:00 1.00 SURF CEMT CMT P Apply 15k up wt. on running fool. Pressure test to 1040 psi. Verifying 3,350 tam port collar Dosed. Bted off pressure. J out of tam port collar. Blow choke in running tool with 2560 psi. Circulate bottoms up at 332 gpm 700 psi. 03:00-04:30 1.50 SURF CEMT POH P _ Pull out of the hole with tam running tool. and lay down the same. 3,350 04:30-08:30 4.00 SURF CEMT WAIT P Mobilize tools and equipment for top job. 3,350 08:30-13:00 4.50 SURF CEMT CIR P Rig up 1"top job pipe and run it thru 20" Hydril and thru 10 3/4" flatted 3>350 hanger to 120'. Circulate at 1 bbl/min 207 psi. Mud wt. 9.7 ppg. 13:00-17:00 4.00 SURF CEMT CMT P Test lines to 3500 psi. Pump 254 bbsf of life Crete cement at 10.7 ppg 3,350 with 1 Ib/gal CemNet at 1 bbVmin 280 psi. Mantained full retums. But no cement to surtace after pumping 245 bbl of 10.7 ppg life Crete cement. 17:00-21:30 4.50 SURF CEMT WAIT P Mobilize tools and equipment for top job, while circulating thru 1" top 3,350 job pipe at 1 bb/min 160 psi. 21:30-22:30 1.00 SURF CEMT CMT P Test lines to 3500 psi. Pump life Crete cement at 10.7 ppg with 1 Ib/gal 3,350 CemNet at 1 bbUmin 214 psi. Getting cement to surtace after pumping 19 bbls, pump another 5 bbls to ensure proper wt. of 10.7 ppg. 22:30-00:00 1.50 SURF CEMT RD P Remove 7" top job pipe from 103/4" x 20". Flush 1" pipe with water 3,350 and lay down. Remove 10 3/4" landing joint. 06:00 Update From-To Hrs Phase Task Activity Code NPT Operation Op. Depth (hr) 00:00-03:00 3.00 SURF IVRT ND P Nipple down diverter system and 20" Hydril. 3,350 Note: Cement 2" below 4" valves on 20". 03:00-03:30 0.50 SURF BOPSU NU P Energize seals and test FMC Gen 5 SSH to 1000 psi. 3,350 03:30-06:00 2.50 SURF BOPSU NU P Nipple up BOP. 3,350 Materials / Consum tion Item Unts Usage On Hand Item Units Usage On Hand DIESEL GAL 3000 4836 Personnel Company No. Hours Company No. Hours Company No. Hours _ FAIRWEATHER 2 12.00 NABORS 2 12.00 NABORS 24 12.00 M-I DRILLING FLUIDS 2 12.00 DOYON 1 14.00 NABORS 1 12.00 ANADRILL SCHLUMBERGER 3 12.00 ANADRILL SCHLUMBERGER 2 12.00 PETROTECHNICAL RESOUR 1 12.00 Cumulative Phase Breakdown Planned Change of Scope Total Total Cost Phase Prod °~ Total NPT % Total WOW % Total Prod % Total NPT % Total WOW % Total Hours USD PRE 29.50 33.3% 59.00 66.7% 88.50 306,100.00 SURF 188.50 89.1% 23.00 10.9% 211.50 1,810,615.0 TOTALS 218.00 72.7% 23.00 7.7% 59.00 19.7% 0.00 0.0% 0.00 0.0% 0.00 0.0% 300.00 2,116,715.0 Remarks PJSM before each task. Derrick inspection before each tour. Test PVT floats and flow sensor. Shale Shakers Dressed as Follows #4 #3 #2 #1 110 165 140 110 110 165 140 110 110 165 140 110 Printed: 7/132007 4:56:33 AM • BP EXPLORATION Daily Operations Report Pace s of s Operator: BP EXPLORATION Rig: NABORS 7ES Report: 13 Welt: W--204 Event: DRILL+COMPLETE Date: 7/12/2007 Field: POLARIS Well Type: DEVELOPMENT Remarks 110 165 140 110 AOGCC rep notified of upcomming top cement job on 20" x 103/4° casing. Conduct visual inspection of cuttings tank 0-16 and berm around tank each tour. Printed: 7/132067 4:56:33 AM ., /asks Oil & Gas1L~E~TION OR RECOMPLETION REPORT AND LOG ~~ A {~t1GhOt9Q8 Revised 05/09/07: Put on Production '~~ `s o~ MAY 1 0 2007 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended ^ WAG zoAACZS.,os zoAO,czs.,,o ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other 1b. Well Class: ®Development ^ Exploratory ^ Stratigraphic ^ Service 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aband. 03/01/2007 12. Permit to Drill Number 206-158 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 1/4/2007 13. API Number 50-029-23333-00-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 1 /29/2007 14. Well Name and Number: W-204 FSL, 1176 FEL, SEC. 21, T11N, R12E, UM 4859 Top of Productive Horizon: 1016' FSL, 891' FEL, SEC. 16, T11 N, R12E, UM (OBd) 8. KB Elevation (ft): 81.52' 15. Field /Pool(s): Prudhoe Bay Field /Polaris Pool Total Depth: 2602' FSL, 848' FEL, SEC. 09, T11 N, R12E, UM 9. Plug Back Depth (MD+TVD) 12630 + 5120 Ft 4b. Location of Well (State Base Plane Coordinates): Surface: x- 612049 y- 5959836 Zone- ASP4 10. Total Depth (MD+TVD) 12630 + 5120 Ft 16. Property Designation: ADL 028261 TPI: x- 612310 y- 5961277 Zone- ASP4 Total Depth: x- 612235 y- 5968142 Zone- ASP4 11. Depth where SSSV set None MD 17. Land Use Permit: 18. Directional Survey ®Yes ^ No 19. Water depth, if offshore N/A MSL 20. Thickness of Permafrost 1900' (Approx.) 21. Logs Run: MWD / GR, MWD: DIR / GR /RES / AZI DEN /NEU /PWD, MDT, USIT / CBL, MWD / GR /RES / AZI DEN /NEU /AIM /PWD 22. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MD SETTING DEPTH. TVD HOLE AMOUNT SIZE WT: PER FT_ GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING REGORD PULLED 20" x 34" 215.5# A53 Surface 110' Surface 110' 48" 260 sx Arctic Set A rox. 10-3/4" 45.5# L-80 29' 3338' 29' 3319' 13-1 /2" 2736 sx AS Lite 484 sx 'G' & --- --- --- --- --- --- --- --- To Job: 320 sx ASL 111 sx A L 7-5/8" 29.7# L-80 27' 5847' 27' 5120' 9-7/8" 234 sx Class 'G' 148 sx Class'G' 4-1/2" 12.6# L-80 5607' 12628' 5067' 5120' 6-3l4" Uncemented Slotted Liner 23. Perforations open to Production (MD + TVD of Top and 24. Tuewc RECORD Bottom Interval, Size and Number; if none, state "none"): SIZE DEPTH SET MD PACKER SET MD 4-1/2" Slotted Sections 4-1/2", 12.6#, 13Cr80 5341' 5266' MD TVD MD TVD 5904' - 7414' 5129' - 5100' 8034' - 9680' 5111' - 5059' 25. ACID, FRACTURE; CEMENT SQUEEZE, ETC. 10135' - 12626' 5062' - 5120' DEPTH INTERVAL MD AMOUNT 8c KIND OF MATERIAL USED 2200' Freeze Protect w/ 91 Bbls of Diesel 26. PRODUCTION TEST Date First Production: April 19, 2007 Method of Operation (Flowing, Gas Lift, etc.): Flowing Date of Test 5/8/2007 Hours Tested 6 PRODUCTION FOR TEST PERIOD OIL-BBL 218 GAS-MCF 99 WATER-BBL 44 CHOKE SIZE 51 GAS-OIL RATIO 452 Flow Tubing Press. 840 Casing Pressure 1,480 CALCULATED 24-HOUR RATE. OIL-BBL 872 GAS-MCF 394 WATER-BBL 176 OIL GRAVITY-API (CORK) 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, ifnecessary). Submit core chips; if none, state "none". r t" ~,~ ~~"'~'~ ~ ~ R ~t~~ ~ ~ 20D7 ~lH,~ ~ None y~,~t F; ~._. . -,rtiy,,,~>, , .,-. Form 10-407 Revised 12/2003 ~ ~ ~ ~ ~ ~ri~~TINUED ON REVERSE SIDE ~~ i (7 28. GEOLOGIC MARKER 29. ORMATION TESTS Include and briefly summarize test results. List intervals tested, NAMe MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Top Ugnu 3,438' 3,416' MDT was ran. Attached is a summary of MDT results. Ugnu_MA 4,664' 4,546' Ugnu_M61 4,731' 4,597' Ugnu_MB2 4,784' 4,636' Ugnu_MC 4,878' 4,703' Schrader Bluff NA 4,971' 4,766' Schrader Bluff NB 5,011' 4,791' Schrader Bluff NC 5,062' 4,822' Schrader Bluff NE 5,078' 4,831' Schrader Bluff NF 5,171' 4,884' Schrader Bluff OA 5,238' 4,919' Schrader Bluff OBa 5,342' 4,969' Schrader Bluff OBb 5,404' 4,996' Schrader Bluff OBc 5,527' 5,042' Schrader Bluff OBd 5,717' 5,095' Schrader Bluff OBd 7,629' 5,095' Schrader Bluff OBd 9,753' 5,056' Schrader Bluff OBd 10,020' 5,057' Schrader Bluff OBd 10,840' 5,071' Schrader Bluff OBd 10,963' 5,074' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, MDT Summary, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. O~ ~p /V! b Signed Terrie Hubble Title Technical Assistant Date W-204 206-158 Prepared By Name/Number.~ Terrie Hubble, 564-4628 Well Number Drilling Engineer: Ken Allen, 564-4366 Permit No. / A royal No. INSTRUCTIONS GeNew-L: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. IreM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). IreM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: True vertical thickness. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: If no cores taken, indicate "None". IreM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only `~ .. STATE OF ALASKA ~.D~ ALASKA OIL AND GAS CONSERVATION COMMISSION ~~Ei~"C MAR 3 0 2UC11 WELL COMPLETION OR RECOMPLETION REPORT AND LOC~~~a ail & Gas Cons. Commission Anchorage 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended ^ WAG 20AAC25.,05 zoAACZS.,,o ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other 1b. Well Class: ®Development ^ Exploratory ^ Stratigraphic ^ Service 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aba 03/01/2007 „~.~ 12. Permit to Drill Number 206-158 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 1/4/2007 13. API Number 50-029-23333-00-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 1 /29/2007 14. Welt Name and Number: W-204 4859 FSL, 1176 FEL, SEC. 21, T11N, R12E, UM Top of Productive Horizon: 1016' FSL, 891' FEL, SEC. 16, T11 N, R12E, UM (OBd) 8. KB Elevation (ft): 81.52' 15. Field /Pool(s): Prudhoe Bay Field /Polaris Pool Total Depth: 2602' FSL, 848' FEL, SEC. 09, T11 N, R12E, UM 9. Plug Back Depth (MD+TVD) 12630 + 5120 Ft 4b. Location of Well (State Base Plane Coordinates): Surface: x- 612049 y- 5959836 Zone- ASP4 10. Total Depth (MD+TVD) 12630 + 5120 Ft 16. Property Designation: ADL 028261 TPI: x- 612310 y- 5961277 Zone- -ASP4 Total Depth: x- 612235 y- 5968142 Zone- ASP4 11. Depth where SSSV set None MD 17. Land Use Permit: 18. Directional Survey ®Yes ^ No 19. Water depth, if offshore N/A MSL 20. Thickness of Permafrost 1900' (Approx.) 21. Logs Run: MWD / GR, MWD: DIR / GR /RES / AZI DEN /NEU /PWD, MDT, USIT / CBL, MWD / GR /RES / AZI DEN !NEU /AIM /PWD 22. CiASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MD SETTING DEPTHTVD HOLE AMOUNT SIZE WT PER FT. GRADE TOP BOTTOM " TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" x 34" 215.5# A53 Surface 110' Surface 110' 48" 260 sx Arctic Set A rox. 10-3/4" 45.5# L-80 29' 3338' 29' 3319' 13-1 /2" 2736 sx AS Lite 484 sx 'G' & --- --- --- --- --- --- --- --- To Job: 320 x ASL 111 sx ASL 7-5/8" 29.7# L-80 27' 5847' 27' 5120' 9-7/8" 234 sx Class 'G' 148 sx Class'G' 4-1/2" 12.6# L-80 5607' 12628' 5067' 5120' 6-3l4" Uncemented Slotted Liner 23. Perforations open to Production (MD + TVD of Top and 24. TUBING RECORD Bottom Interval, Size and Number; if none, state "none"): SIZE DEPTH SET MD PACKER SET MD 4-1/2" Slotted Sections 4-1/2", 12.6#, 13Cr80 5341' 5266' MD TVD MD TVD 5904' - 7414' 5129 - 5100' 8034' - 9680' 5111' - 5059' 25. ACID, FRACTURE, GEMENT SQUEEZE, ETC. 10135' - 12626' 5062' - 5120' DEPTH INTERVAL MD AMOUNT Hi KIND OF MATERIAL USED 2200' Freeze Protect w/ 91 Bbls of Diesel 26. PRODUCTION TEST Date First Production: Not on Production Yet Method of Operation (Flowing, Gas Lift, etc.): N/A Date of Test Hours Tested PRODUCTION FOR TEST PERIOD OIL-BBL GAS-McF WATER-BBL CHOKE SIZE GAS-OIL RATIO Flow Tubing Press. Casing Pressure CALCULATED 24-HOUR RATE. OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-API (CORK) 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if nece_~,S,,ary). Submit core chips; if none, state "none . f None ~ ~r~, ~~R ~ ~ Z~~~ ~~ ~ `Fi ~ , Form 10-407 Revised 12/200 ~' ~ ~ * 1! '~ 7~CONTINUED ON REVERSE SIDE ~ ~, ?$~ GEOLOGIC MARKERS 29. JRMATION TESTS Include and briefly summarize test results. List intervals tested, Na,Me MD TVD and attach detailed supporting data as necessary. If no tests were conducted state "None". Top Ugnu 3,438' 3,416' MDT was ran. Attached is a summary of MDT results. Ugnu_MA 4,664' 4,546' Ugnu_MB1 4,731' 4,597' Ugnu_MB2 4,784' 4,636' Ugnu_MC 4,878' 4,703' Schrader Bluff NA 4,971' 4,766' Schrader Bluff NB 5,011' 4,791' Schrader Bluff NC 5,062' 4,822' Schrader Bluff NE 5,078' 4,831' Schrader Bluff NF 5,171' 4,884' Schrader Bluff OA 5,238' 4,919' Schrader Bluff OBa 5,342' 4,969' Schrader Bluff OBb 5,404' 4,996' Schrader Bluff OBc 5,527' 5,042' Schrader Bluff OBd 5,717' 5,095' Schrader Bluff OBd 7,629' 5,095' Schrader Bluff OBd 9,753' 5,056' Schrader Bluff OBd 10,020' 5,057' Schrader Bluff OBd 10,840' 5,071' Schrader Bluff OBd 10,963' 5,074' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, MDT Summary, Surveys 31. I hereby certify that the f~oing is true and correct to the best of my knowledge. ~3 c ~~9~0 Signed Terrie Hubble ~ Title Technical Assistant Date W-204 206-158 Prepared By NameMumber.~ Terrie Hubble, 564-4628 Well Number Permit No. / A rOVal NO. Drilling Engineer: Ken Allen, 564-4366 INSTRUCTIONS Gerrew-~: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). IreM 8: The Kelly Bushing elevation in feet above mean low low water. 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). IreM 20: True vertical thickness. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITeM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). ITeM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). ITeM 27: If no cores taken, indicate "None". ITeM 29: list all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only Well: W-204 Tool: MDT Start: 1 /17/2007 End: 1/18/2007 Point interval Sam ie De th N drostatic Pressure Formation Drawdown n t Tem Comments PresslFluid F.MW MD TVOSS (F} Before After Diff Pressure Mobility (minutes} Deg. F 1 UG1 4499 4330.0 2119 2119 0.0 2018 16.7 88 GOOD TEST Pressure 8.96 2 UG1 4587 4403.0 2154 2154 0.0 2072 26.2 88 GOOD TEST Pressure 9.05 3 UG MA 4682 4478.0 2190 2190 0.0 2128 11.7 89 GOOD TEST Pressure 9.14 4 UG M81 4738 4521.0 2211 2211 0.0 2120 75.9 90 GOOD TEST Pressure 9.02 5 UG MB1 4764 4540.0 2222 91 NO SEAL Pressure 0.00 6 UG MB1 4765 4541.0 2223 91 NO SEAL Pressure 0.00 7 UG MB2 4791 4560.0 2231 91 NO SEAL Pressure 0.00 8 UG MB2 4792 4561.0 2231 92 NO SEAL Pressure 0.00 9 UG MB2 4793 4562.0 2232 92 NO SEAL Pressure 0.00 10 UG MC 4880 4623.0 2261 2261 0.0 38-152 133.7 92 SUPER CHARGED Pressure 11 UG MC 4930 4657.0 2278 2278 0.0 2169 4.8 93 GOOD TEST Pressure 8.96 12 SB NB 5019 4714.0 2306 93 NO SEAL Pressure 0.00 13 SB NB 5020 4714.0 2307 2307 0.0 2153 55.7 93 GOOD TEST Pressure 8.78 14 SB NB 5045 4730.0 2315 2315 0.0 2105 68.5 94 GOOD TEST Pressure 8.56 15 SB OA 5250 4843.0 2316 2316 0.0 2203 0.0 94 GOOD TEST Pressure 8.75 16 SB OA 5290 4863.0 2382 2380 2.0 1984 0.5 95 GOOD TEST Pressure 7.85 17 SB OBA 5354 4893.0 2395 2395 0.0 2021 3.0 95 GOOD TEST Pressure 7.94 18 SB OBA 5376 4902.0 2400 2400 0.0 2003 86.5 96 GOOD TEST Pressure 7.86 19 SB OBA 5384 4906.0 2402 2402 0.0 2005 189.5 96 GOOD TEST Pressure 7.86 20 SB OBB 5411 4917.0 2407 2407 0.0 2078 0.6 96 GOOD TEST Pressure 8.13 21 SB OBB 5441 4928.0 2413 2413 0.0 2201 0.1 96 GOOD TEST Pressure 8.59 22 SB OBB 5455 4934.0 2416 97 NO SEAL Pressure 0.00 23 SB OBB 5456 4934.0 2417 2416 1.0 2036 25.8 97 GOOD TEST Pressure 7.94 24 SB OBC 5534 4962.0 2429 2429 0.0 2176 2.1 97 GOOD TEST Pressure 8.43 24 SB OBC 5563 4972.0 2434 2434 0.0 2232 0.2 97 GOOD TEST Pressure 8.63 26 SB OBC 5579 4977.0 2437 2437 0.0 2172 5.0 97 GOOD TEST Pressure 8.39 27 SB OBC 5585 4979.0 2438 2438 0.0 2170 19.8 98 GOOD TEST Pressure 8.38 28 SB OBD 5730 5016.0 2456 2456 0.0 2051 8.1 97 GOOD TEST Pressure 7.86 29 SB OBD 5751 5020.0 2458 2458 0.0 97 LOST SEAL Pressure 0.00 30 SB OBD 5752 5020.0 2459 2458 1.0 2052 4.4 97 GOOD TEST Pressure 7.86 31 SB OBD 5786 5026.0 2461 2461 0.0 2054 1.5 97 GOOD TEST Pressure 7.86 32 SB OBD 5804 5030.0 2463 2463 0.0 2052 10.9 98 GOOD TEST Pressure 7.85 Flnirlc Fluid/Oil, API SB_OBD gravity 20.6, Fluid 1 5786 5026 2052 180 98 ne 1 allon oil sam le collecte 20.9 FluidlOil, API SB_OBA gravity 16.2, Fluid 2 5384 4906 2005 180 96 ne 1 allon oil sam le collecte 16.7 Fluid 3 SB_OBC 5585 4979 2170 210 98 2 x 450m1 oil sam les callecte Fluid/Oil, API gravity 18.2, 18.6 Sample proposed, but not attempted due to MDT tool packer failure after OBc Fluid 4 SB Nb 5019 sample Sample proposed, but not attempted due to MDT tool packer failure after OBc Fluid 5 SB Mb1 4738 sample Sand TVDSS UG1 4148 1500.0 4148 3000.0 UG Ma 4470 1500.0 4470 3000.0 UG Mb1 4515 1500.0 4515 3000.0 UG Mb2 4554 1500.0 4554 3000.0 UG Mc 4621 1500.0 SB Na 4127 4621 3000.0 SB Nb 4709 1500.0 4709 3000.0 SB Nc 4187 SB Ne 4750 1500.0 4750 3000.0 SB OA 4839 1500.0 4839 3000.0 SB 068 4884 1500.0 4884 3000.0 SB OBb 4913 1500.0 4913 3000.0 SB OBc 4961 1500.0 4961 3000.0 SB OBd 5013 1500.0 5013 3000.0 SB OBe 5080 1500.0 5080 3000.0 • W-204 RFT Formation Pressures (> 3md/cp mobility) 4300 _ _ _ _ _ - - - _ - _ -- - ------ W-204 OB Sd formation pressures depleted due 4400 to W-200 AND W-201? OB sand production; ~ __ ----- w-zoo MDT 4500 Pressures - • W-204 Pressures - >3md/cp --F UG_Ma 4600 UG Mb1 _ ~[- UG Mb2 tuG Mc 4700 -~-- _ - __- - - - _ ~~- - --• _ ~ N -~ SB_Nb 0 --- SB_Ne 4800 -- se on SB_OBa - i s6_oBb 4900 s6_oec SB_OBd 5000 ~ SB_OBe Linear (W-200 MDT ! Pressures) i 5100 5200 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 Fm. Pressure (psi) • i BP EXPLORATION Page 1 of 1 Leak-Off Test Summary Legal Name: W-204 Common Name: W-204 Test Date Test Type 1/14/2007 LOT 1/22/2007 FIT Test Depth (TMD) Test Depth (TVD) -- ~ AMW ___ !, Surface Pressure Leak Off Pressure (BHP) EMW 3,370.0 (ft) 3,318.0 (ft) 8.80 (ppg) 1,001 (psi) 2,518 (psi) 14.61 (ppg) 5,870.0 (ft) 5,123.0 (ft) 9.00 (ppg) 320 (psi) 2,715 (psi) 10.20 (ppg) Printed: 3/5/2007 7:03:09 AM BP EXPLORATION Operations Summary Report Page 1 of 34 ~ Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date ~ From - To ~ Hours I Task Code ~NPT Phase ~ Description of Operations 12/31/2006 12:00 - 16:00 4.00 MOB P PRE Move Pits & Camp to W-204 16:00 - 00:00 8.00 MOB P PRE Move rig to end of S Pad access road & check torque on wheel 1/1/2007 00:00 - 01:00 1.00 RIGU P PRE 01:00 - 04:00 3.00 RIGU P PRE 04:00 - 05:00 1.00 RIGU P PRE 05:00 - 06:00 1.001 RIGU P PRE 06:00 - 12:00 ~ 6.00 ~ RIGU ~ N ~ WAIT PRE 12:00 - 20:00 8.00 RIGU N WAIT PRE 20:00 - 00:00 4.00 RIGU N WAIT PRE ''.1/2/2007 00:00 - 00:00 24.00 RIGU N WAIT PRE 1/3/2007 00:00 - 06:00 6.00 RIGU N WAIT PRE 06:00 - 17:00 11.00 RIGU N WAIT PRE 17:00 - 23:30 I 6.501 RIGU I P I I PRE 23:30 - 00:00 I 0.501 RIGU I P I I PRE 1/4/2007 00:00 - 04:30 4.50 RIGU P PRE 04:30 - 07:30 3.00 DRILL P SURF 07:30 - 09:30 2.00 DRILL P SURF 09:30 - 10:30 ~ 1.001 DRILL P I SURF nuts. Move Sub from S pad to W Pad. Move rig onto W pad. Spot sub over W-204. Place rig mats. Place herculite and spot pits to sub. Place mats under pits. Pre-spud meeting w/day tour. Discuss safe work in -40 deg. F., work in pairs when outside. Lessons learned from previous well including pipe skate procedures--use tugger on short joints and odd OD equipment. Discuss W-204 overall procedure. Discuss plan forward f/surface hole. PJSM before all tasks. Set cuttings tank and berm w/sills and herculite. Spot Schlumberger, geo, and mud shacks. Spot gel bulk units. Tie in pits to sub. Ready to take on fluids to pits at 06:00. Accept rig at 06:00. WOW. 06:00 temperature -38 deg. F. -35 is Dreco minimum safe temperature to raise derrick. Take mud into pits. Re-align diverter and rig up divereter line. NU Riser, weld on flow nipple. Ambient temp = -41 deg. F at 16:00. WOW. Pre-spud meeting w/night tour. Discuss safe work in -40 deg. F., work in pairs when outside. Lessons learned from previous well including pipe skate procedures--use tugger on short joints and odd OD equipment. Discuss W-204 overall procedure. Discuss plan forward f/surface hole. PJSM before all tasks. Load 4" drill pipe into pipe shed. Ambient temp = -38 deg. F at 20:00. WOW. Load BHA and HWDP in pipe shed. Clean, wipe, polish. Ambient temp = -42 deg. F at 23:59. WOW. WOW. Complete vac hose installation in pits f/ MOBM. Buff the diamondplate. Wait on weather to warm to above -35 ambient before rasing the derrick. Wait on weather to warm to above -35 ambient before rasing the derrick. Change liners and swabs in both mud pumps from 6" to 5.5". Raise derrick at -35 ambient. Pin derrick. Raise and pin pipe chute. Bridal down, pin top drive to blocks, hange bridal lines. Change saver sub on top drive from HT-40 to 4.5 IF. Rig up rig floor. Install flow riser. Function test surface diverter system with 4" drill pipe. Perform koomey test. W ittness of diverter system wavied by AOGCC rep Chuck Sheve. Test wittnessed by BP WSL Wade Frame, Nabors Toolpusher Biff Perry. Pick up 99 joints of 4" drill pipe and 23 joints of 4" HWDP with jars and stand back in the derrick. Pick up BHA #1 Consiting of 13 1/2" MXL-1X Bit, XP motor set at 1.5 degrees. Drill 13 1/2" surface hole from 108' to 352'. Utilizing 2 stands of 4" HWDP. 500 gpm 660 psi. Up wt. 42k, S/O wt. 38k, Rot wt. 40k, 35 rpm, Tq off 1 k, On 1.5K. ART = 1.42 Hrs. AST = 0 Hrs. ADT = 1.42 Hrs. Jar Hrs = 0 Pull out of the hole from 352' to 28'. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Page 2 of 34 Legal Well Common W Event Nam Contractor Rig Name: Date Name: ell Name: e: Name: rom - To W-204 W-204 DRILL+C NABOBS NABOBS Hours ; OMPLE ALASK 7ES ~ Task TE A DRI ; ~ Code LING PT Start I Rig Rig Phase ' Spud Date: 12/29/2006 : 12/29/2006 End: 3/1/2007 Release: 3/1/2007 Number: Description of Operations 1/4/2007 10:30 - 11:45 1.25 DRILL P SURF Pick up remaining BHA, NM lead collar, 8" OD NM satb, MWD, UBHO, 8" OD NM stab, NM lead collar, X-O , NM spiral drill collar, 6.75" NM stab, NM spiral drill collar, Flaot sub, Jars and X-O = 202' 11:45 - 12:00 0.25 DRILL P SURF Rig up Sperry Sun Unit and Gryo Data. 12:00 - 12:30 0.50 DRILL P SURF Survey with Gryo Data at 100' .34 degrees, 149.95 AZM, 169' .40 degrees, 143.89 AZM, 200' .69 degrees, 151.96 AZM, 258' .85 Degrees, 159.49 AZM. 12:30 - 22:30 10.00 DRILL P SURF Directional drill 13 1/2" surface hole from 352' to 891'. 22:30 - 23:00 0.50 DRILL P SURF Survey with Gryo Data at 797' .24 degrees, 143.69 AZM, Survey every 100' up to 300'. 23:00 - 00:00 1.00 DRILL P SURF Directional drill 13 1/2" surface hole from 891' to 940'. 550 gpm 1460 psi on. 1390 psi off. Up wt. 65k, S/O wt. 55k, Rot wt. 50k, 55 rpm, Tq off 1.2k, On 3K. Mud wt In 9.3 ppg. Out 9.3 ppg ART = 4.85 Hrs. AST = 2.03 Hrs. ADT = 6.88 Hrs. Jar Hrs = 7.64 1/5/2007 00:00 - 12:00 12.00 DRILL P SURF Directional drill 13 1/2" surface hole from 940' to 1845'. 550 gpm 1460 psi on. 1390 psi off. Up wt. 70k, S/O wt. 70k, Rot wt. 70k, 60 rpm, Tq off 1.5k, On 3K.W06 15 t/ 20k. Mud wt In 9.3 ppg. Out 9.3 ppg ART = 8.72 Hrs. AST = .42 Hrs. ADT = 9.14 Hrs. Jar Hrs = 18.19 12:00 - 00:00 12.00 DRILL P SURF Directional drill 13 1/2" surface hole from 1845' to 3184. 650 gpm 3142 psi on. 3096 psi off. Up wt. 92k, S/O wt. 87k, Rot wt. 90k, 80 rpm, Tq off 2k, On 3-4K. WOB 20 t/ 30k. Mud wt In 9.4 ppg. Out 9.4 ppg ART = 6.68 Hrs. AST = 2.35 Hrs. ADT = 9.08 Hrs. Jar Hrs = 27.25 1/6/2007 00:00 - 02:00 2.00 DRILL P SURF Directional drill 13 1/2" surface hole from 3184' U 3350'. 650 gpm 3150 psi on. 3100 psi off. Up wt. 95k, S/O wt. 92k, Rot wt. 95k, 80 rpm, Tq off 2k, On 4 U 5kK. WOB 20 t/ 30k. Mud wt In 9.4 ppg. Out 9.4 ppg ART = .95 Hrs. AST = .37 Hrs. ADT = 1.32 Hrs. Jar Hrs = 28.55 02:00 - 04:00 2.00 DRILL P SURF Circulate bottoms up 3 x at 645 gpm, 3140 psi. At first bottoms up a 25% increase in cuttings was oberserved (Small Pee Gravel and Sand). 04:00 - 06:00 2.00 DRILL P SURF Pull out of the hole from 3350' to 2820', no overpulls or swabbing from 2820' to 2627'. Intermittent over pulls from 20k to 30k at 2627 wiping tight areas clean. At 2627 40k over pull ', was encountered unable to wipe area clean. ! 06:00 - 06:30 0.50 DRILL P SURF Backreaming from 2627 to 2534' at 600 gpm 2700 psi. I 06:30 - 07:00 0.50 DRILL N RREP SURF After breaking out of stand of drill pipe and before making up top drive to drill pipe in the rotary table, the back up wrech was inspeceted and it was found that 2 of the 4 dies in the back up wrench were busted. Replace and redress dies in back up wrench. All broken dies accounted for. 07:00 - 14:00 7.00 DRILL P SURF Continue to back ream & pumping out of hole from 2534' to 450' at 550 gpm 1425 psi, 50 RPM, 2 U 5k tq. 14:00 - 14:30 0.50 DRILL P SURF Pull out of the hole from 450' to surface. 14:30 - 15:30 1.00 DRILL P SURF Break out 13 1/2" MXL-iX Bit and make up bit #2 RR MX-C1. 15:30 - 16:00 0.50 DRILL P SURF Run in the hole with BHA #2 to 740". Taking 25k down wt. at Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Page3of34~ Legal Well Common W Event Nam Contractor Rig Name: Date Name: ell Name: e: Name: From - To W-204 W-204 DRILL+C NABOBS NABOBS Hours OMPLE ALASK 7ES Task TE A DRI Code LING NPT Start I Rig Rig Phase Spud Date: 12/29/2006 : 12/29/2006 End: 3/1/2007 Release: 3/1/2007 Number: Description of Operations 1!6/2007 15:30 - 16:00 0.50 DRILL P SURF 740'. 16:00 - 18:00 2.00 DRILL P SURF Wash and Ream from 740' to 1096' at 300 gpm, 880 psi, 30 RPM. 2.5k tq. At 1096' pack off occured, No pipe movement or circulation. Jars fired, circulation and pipe movement were regained. Stage pumps up to 515 gpm 1870 psi. 60 RPM, 4k tq. 18:00 - 19:00 1.00 DRILL P SURF Circulate bottoms up 3 x at 515 gpm 1870 psi, Rotating and Reciprocating pipe. Cuttings +- 1"thick coming across shale shakers, (Small Pee Gravel, Sand and Wood Pieces 3" to 4" ', long)Cuttings coming across shale shakers never subsided while circulating. ', Cuttings tank within 18" of running over. No equipment on location (Super Suckers). i 19:00 - 21:00 2.00 DRILL N WAIT SURF Pull out of the hole back reaming at reduced pump rate from '~ 1096' to 52T. 240 gpm 555 psi, 30 RPM, 3k tq. 21:00 - 22:00 1.00 DRILL N WAIT SURF Pumping out of the hole from 52T to 16T. 108 gpm, 387 psi. 22:00 - 22:30 0.50 DRILL N WAIT SURF Blow down top drive. Change out handling equipment. Stand back NM spiral dc, drain motor. Note: Cuttings tank 6" from being completely full and running over. 22:30 - 00:00 1.50 DRILL N WAIT SURF Wait on Super suckers to return and empty cuttings tank before proceeding ahead. 1/7/2007 00:00 - 01:00 1.00 DRILL N WAIT SURF Wait on Super suckers to return and empty cuttings tank before proceeding ahead. 01:00 - 02:00 1.00 DRILL N WAIT SURF Run in the hole with BHA #2 taking 20k down wt. at 581'. 02:00 - 15:00 13.00 DRILL N WAIT SURF Wash and ream from 581' to 1735" at 295 gpm, 815 psi, 20 RPM, 2.5k tq. Increase in tq and slight pack off from 1735' to 1780', and at 1945'. (Wood /Pea Gravel) Run in the hole from 1945' to 2125' with out pumps or rotary, no problems. Wash and ream from 2125' to 2220'. 500 gpm 1910 psi. Run in the hole from 2220' to 2255' with out pump or rotary. Wash and ream from 2255' to 2348'. 570 gpm, 2290 psi 30 rpm. Wash and ream from 2348' to 2500' at 350 gpm, 1250 psi, 30 rpm. Run in the hole from 2500' to 2540' with out pump or rotary. Wash and ream from 2530' 2605'. Run in the hole with out pump or rotary from 2605' to 2696'. Wash and ream from 2697' to 2890', 275 gpm 1080 psi, 30 rpm 2.5k tq. Run in the hole from 2890' to 3010' with out pump or rotary. Wash and ream from 3010 to 3350', 400 gpm, 1775 psi. Pack off occuring at 3010'. Lost 100 bbls of spud mud before regaining full circulation. Had 40' of fill on bottom. 15:00 - 18:30 3.50 DRILL P SURF Circulate bottoms up 6 x Calulated at 610 gpm, 3180 psi, 100 rpm, 2.5k, Rot wt. 95k. Shakers cleaned 44500 strokes. Larger size gravel from first bottoms up at 12000 strokes, 40' fill from bottom. Mud Wt. in and out 9.3 ppg. Vis 300+ Flow line Temp 61 Deg. 18:30 - 00:00 5.50 DRILL P SURF Pump out of the hole from 3350' to 3274', 350 gpm 1210 psi. Pulling 20k over, unable to pump thru. Back ream from 3274' to 3225', 490 gpm 2130 psi. 80 rpm, 4k to 7k tq. Pump out of the hole from 3225' to 3217', encountered 20k over pull. Back ream from 3215' to 3086', 8k tq. from 3217' to 3183'. Pump out of the Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 4 of 34 Operations Summary Report Legal Well Common W Event Nam Contractor Rig Name: Date Name: ell Name: e: Name: From - To W-204 W-204 DRILL+C NABOBS NABOBS Hours OMPLE ALASK 7ES Task TE A DRI Code LING NPT Start 1 Rig Rig Phase ~ Spud Date: 12/29/2006 : 12/29/2006 End: 3/1/2007 Release: 3/1/2007 Number: Description of Operations 1/7/2007 18:30 - 00:00 5.50 DRILL P SURF hole from 3183' to 3086', 500 gpm 2375 psi. encoutered 25k over pull. Back ream from 3078' to 2896'. 500 gpm 2375 psi, 80 rpm. From 3068' to 3058' 5 to 10k tq. Increase in cutting of 30% on bottoms up (Small Pea Gravel and Clay). Pump out of the hole from 2896' to 2882' , 504 gpm.,2200 psi. encountered 30k over pull at 2882'. Back ream from 2880' to 2110'. 500 gpm, 2185 psi, 80 rpm. 4 to 8k tq from 2882' to 2512'. Stalling rotary, Pack off, Regain circulation. Back reaming from 2510' to 2512' slowly, 5 to 13k tq. Continue back reaming to 2110'. Areas of trouble 2410' to 2407'. 7k tg. 2316' to 2314'. 10k tq. 2224' to 2219'. 6k tq. Pump out of the hole from 2110' to 1681'. 25k over pull and packed off. Regain circulation and back ream from 1674' to 1651'. 13k rotary tq from 1679' to 1682'. Pump out of the hole from 1651' to 1480', 500 gpm, 1709 psi. Note: Lost 163 bbls of spud mud to well bore. 1/8/2007 00:00 - 02:30 2.50 DRILL P SURF Pump out of the hole from 1480' to 550', 500 gpm, 1348 psi. No problems. 02:30 - 04:30 2.00 DRILL P SURF Run in the hole from 550' to 2215', taking 25k wt. Taking 15k wt at 1280', 1405', 1444', 1871'. Work and wipe areas taking 15k wt. with no major difficulty. 04:30 - 06:00 1.50 DRILL P SURF Wash past 2215 with 264 gpm, 817 psi. 85k UP wt. 75k S/O. Taking 30k wt. at 2227'. Wash and ream from 2227' to 2384', 330 gpm, 1045 psi. 30 rpm, 2.5k tq off, 6 to 8k on. WOB 5 to 6k. Rot wt. 80k. 06:00 - 09:00 3.00 DRILL P SURF Ream from 2384' to 2800', 500 gpm, 2151 psi. 45 rpm, 2.5k tq off, 2 to 12k on. WOB 5 to 6k. Rot wt. 80k. Backreaming full stand 09:00 - 15:30 6.50 DRILL P SURF Ream from 2800' to 3150', 500 gpm, 2200 psi. 60 rpm, 2.5k tq off, 2 to 12k on. WOB 5 to 15k. Rot wt. 80k. Backreaming full stand Extremely difficult reaming through the faulted section from 3000' to 3100'. Stalling Motor and rotary, bit bouncing as if drilling gravel /wood. 15:30 - 16:30 1.00 DRILL P SURF Ream from 3150' to 3350', 550 gpm, 2720 psi. 60 rpm, 2.5k tq WOB 0 to 5k. Rot wt. 80k. No resistance reaming and no fill on bottom. 16:30 - 21:00 4.50 DRILL P SURF Circulate bottoms up 4.4 x Calulated at 624 gpm, 3250 psi, 80 rpm, 3k, Rot wt. 95k. Pumped 40 bbl super sweep around, sweep returned C~ 13000 strokes, 53 % over Calulated. Raised mud weight to 9.5 ppg. Shakers cleaned up at 35987 strokes. Mud Wt. in and out 9.5 ppg. Vis 300+ Flow line Temp 66 Deg. 21:00 - 00:00 3.00 DRILL P SURF Pumping out of the hole at 500 gpm, 2214 psi from 3350' to 2856'. 15k over pull at 3019', 10k at 2964', 15k at 2916', 20k at 2888'. Encountered 30k over pull at 2841'. Back ream from 2856' to 2798', 500 gpm 2200 psi, 60 rpm, 6k tq. Wash and ream back down to 2798'. Pumping out of the hole from 2798' to 2430'. Seeing 15k over pull the second time passing thru 2841'. Intermittent over pulls of 10 to 15k from 2698' to 2430'. Lost 73 bbls of Spud mud to well bore. 1/9/2007 00:00 - 04:00 4.00 DRILL P SURF Pumping out of the hole 500 gpm, 1832 psi from 2430' to 2276'. 30k over pull at 2276'. Back ream from 2285' to 2266'. Printed: 3/5/2007 7:03:14 AM r i BP EXPLORATION Page 5 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABORS 7ES Rig Number: Date 1 /9/2007 From - To I Hours ' Task I Code I NPT I Phase 00:00 - 04:00 4.00 DRILL P 04:00 - 05:30 1.50 DRILL P 05:30 - 08:00 2.50 DRILL P 08:00 - 10:30 2.50 CASE P 10:30 - 14:30 4.00 CASE P 14:30 - 00:00 9.50 CASE P ',1 /10/2007 ~ 00:00 - 00:30 ~ 0.50 ~ CASE ~ P 00:30 - 12:00 I 11.501 CASE I P 12:00 - 00:00 I 12.001 CASE I P SURF SURF SURF SURF SURF SURF SURF SURF SURF Description of Operations 500 gpm, 1832 psi, 60 rpm, 6.5k tq. Intermittent over pulls of 10 to 20k from 2367' to 2339'. Pumping out of the hole from 2266' to 397'. No problems. Blow down top drive. Pull out of the hole from 397' to 77', Standing back NM spiral drill collars. Break bit and lay down UBHO sub, MW D, NM stab, NM lead collar, and 1.5 degree XP motor. Make dummy run with 10 3/4" madral casing hanger. Rig up Nabors casing equipment. Change out bails and make up franks fill up tool. Run in the with 10 3/4" 45.5# L-80 BTC Casing to 1200'. Baker Loc shoe track. Check floats. Run bow spring centralizers on joints 1 thru 25. Average make up tq 8600 fUlbs Begin circulating 10 3/4" casing down from 1200' to 2132'. 152 gpm, 365 psi. Flow line temp 56 degrees. Taking 15k weight at 1690', work thru tight area and continue circulating casing down, taking 20k wieight at 1764'. No over pull while working casing on the up stroke or indication of pack off on the down stroke. Continue circulating casing down from 1764' to 2132' taking 15 to 20k down weight. Sand and small pieces if wood coming across shale shakers. Circulate bottoms up at 2132' at 152 gpm, 307 psi. No increase in cuttings or structure of cuttings. Circulate bottoms up at 2132'. Increasing pump rate to 200 gpm 342 psi while reciprocating casing. Up wt 115k, S/O wt. 90k. Second bottoms up same results as the first bottoms up. Continue circulating 10 3/4" surface casing down from 2132' to 2606'. Varying pump rate from 160 gpm, 384 psi to 360 gpm,645 psi. Circulating bottoms up 2 x at 250 gpm, 480 psi. 25% increase in cuttings at bottoms up (Sand and Small Pea Gravel) Slight pack off occurring at 2510'. Continue circulating 10 3/4" surface casing down from 2606' to 3219'. Varying pump rate from 230 gpm, 480 psi, to 422 gpm, 830 psi. Circulate bottoms up 2 x at 3019', 370 gpm 680 psi. 25% increase in cuttings. (Sand, Small Pea Gravel and Wood pieces) Circulate bottoms up at 3135'. 422 gpm, 830 psi. 30% increase in cuttings. (Sand, Small Pea Gravel) No difficulty circulating surface casing down from 3060' to 3099' Up wt. 155k, S/O wt. 105k. Losing partial returns at 3135'. Reduce pump rate to 284 gpm, 590 psi. Lost 240 bbls of spud mud to well bore in 24 hours. 1/11/2007 00:00 - 06:30 6.50 CASE P SURF Continue circulating 10 3/4" surface casing down from 3219' to 3337'. Landing 10 3/4" surface casing on ring with mandral hanger. Varying pump rate fom 296 gpm, 633 psi to 433 gpm, 909 psi. Circulate bottoms up 2 x at 430 gpm, 819 psi. 30% increase in cuttings. (Sand and Golf Ball Sized Gravel) Reciprocating casing from 3233' to 3226'. Up wt. 150k. S/O wt. 110k. Full returns regained at 3255'. 06:30 - 08:00 1.50 CEMT P SURF Circulate and condition mud at 343 gpm 675 psi. 08:00 - 12:00 4.00 CEMT P SURF Rig down franks fill up tool. Blow down lines. Make up cement head and manifold. Circulate and condition mud at 337 gpm, 690 psi. PJSM with Schlumberger cementing crew and rig Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING I Rig Name: NABOBS 7ES Date From - To ~ Hours ~ Task ~ Code ~ NPT Start: 12/29/2006 Rig Release: 3/1/2007 Rig Number: Page 6 of 34 ~ Spud Date: 12/29/2006 End: 3h /2007 Phase ~ Description of Operations 1/11/2007 08:00 - 12:00 4.00 CEMT P SURF 12:00 - 16:00 4.00 CEMT P SURF 16:00 - 19:00 I 3.001 CEMT I P I I SURF 19:00 - 20:30 ~ 1.50 ~ CEMT ~ P ~ ~ SURF 20:30 - 21:00 0.50 CEMT P SURF 21:00 - 23:30 2.50 CEMT N WAIT SURF 23:30 - 00:00 0.50 CEMT P SURF 1/12/2007 00:00 - 02:00 2.00 CEMT P SURF 02:00 - 03:00 I 1.001 CEMT I P I I SURF 03:00 - 04:30 I 1.501 CEMT I P I I SURF 04:30 - 08:30 4.00 CEMT P SURF 08:30 - 13:00 4.50 CEMT P SURF 13:00 - 17:00 I 4.001 CEMT I P I I SURF 17:00 - 21:30 4.50 CEMT P SURF 21:30 - 22:30 1.00 CEMT P SURF 22:30 - 00:00 1.50 CEMT P SURF 1/13/2007 00:00 - 03:00 3.00 DIVRTR P SURF personal. Pump 5 bbls water, test lines to 3500 psi.pump 80 bbls of 10.5 ppg mud push. Drop bottom plug, pump 625 bbls of lead with 2 Ib/bbl Cem-Net at 10.7 ppg cement. 6 bbl/min with 568 bbls pumped returns went from 5% to 4%. Pump 100 bbls of 15.8 ppg cement tail at 5 bbl/min 1500 psi, returns at 4%. With 35 bbls of tail pumped returns went to 0%. Drop top plug. Wash up with 10 bbls of water. Switch to rig pumps and displace cement increasing pump rate from 4 bbl/min, 460 psi to 7 bbl/min, 1300 psi. Slow rate to 3 bbl/min and bump plug at 1939 psi. Check floats. CIP ~ 3:15 Rig down cement head. Blow down lines. Lay down landing joint. Change out bails and handling equipment. Pick up Tam port running tool and run in the hole to 983'. Test to 621 psi. Bled off pressure to 200 psi, set 20k down on tam port. Verify tam port collar open by loss of pressure. Circulate and condition mud, staging pumps up to 270 gpm, 725 psi. No signs of cement or trace of cement at bottoms up. Continue to circulate and condition mud while waiting on contaminate pill on vac truck for next cement job wash up. Vac truck delayed due to flat tire. Pump 5 bbls of water. Test lines to 3500 psi. Pump 10.7 ppg cement with 2 Ib/bbl Cem-Net at 4 bbl/min 320 psi, with 190 bbls pumped pressure increased to 645 psi and flow dropped from 18% to 2%. Mantained partial returns with 192 bbls away. Decreased rate to 3.5 bbls/min 475 psi, returns increased to 2% and returns were lost again with 196 bbls away at 3 bbl/min 352 psi. Pumping a total of 407 bbls of 10.7 ppg cement. After loss of returns fluid level remained static. Apply 15k up wt. on running tool. Pressure test to 1040 psi. Verifying tam port collar closed. Bled off pressure. J out of tam port collar. Blow choke in running tool with 2560 psi. Circulate bottoms up at 332 gpm 700 psi. Pull out of the hole with tam running tool. and lay down the same. Mobilize tools and equipment for top job. Rig up 1"top job pipe and run it thru 20" Hydril and thru 10 3/4" fluffed hanger to 120'. Circulate at 1 bbl/min 207 psi. Mud wt. 9.7 PPg• Test lines to 3500 psi. Pump 254 bbsl of life Crete cement at 10.7 ppg with 1 Ib/gal CemNet at 1 bbl/min 280 psi. Mantained full retums. But no cement to surface after pumping 245 bbl of 10.7 ppg life Crete cement. Mobilize tools and equipment for top job, while circulating thru 1"top job pipe at 1 bb/min 160 psi. Test lines to 3500 psi. Pump life Crete cement at 10.7 ppg with 1 Ib/gal CemNet at 1 bbl/min 214 psi. Getting cement to surface after pumping 19 bbls, pump another 5 bbls to ensure proper wt. of 10.7 ppg. Remove 1"top job pipe from 10 3/4" x 20". Flush 1" pipe with water and lay down. Remove 10 3/4" landing joint. Nipple down diverter system and 20" Hydril. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Page 7 of 34 ~ Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To ~ Hours Task Code j NPT Phase Description of Operations 1/13/2007 00:00 - 03:00 3.00 DIVRTR P SURF Note: Cement 2" below 4" valves on 20". 03:00 - 03:30 0.50 BOPSU P SURF Energize seals and test FMC Gen 5 SSH to 1000 psi. 03:30 - 08:00 4.50 BOPSU P SURF Nipple up BOP. 08:00 - 09:30 1.50 BOPSU P SURF Install test plug. Rig up BOP test equipment. 09:30 - 13:30 4.00 BOPSU P SURF Test BOP and all associated valves to 250 psi low and 3500 13:30 - 16:00 2.50 BOPSU~ P 16:00 - 21:30 5.50 BOPSU N 21:30 - 23:00 1.50 DRILL P 23:00 - 00:00 1.00 DRILL P 1/14/2007 00:00 - 04:00 4.00 DRILL P 04:00 - 05:30 1.50 DRILL P 05:30 - 10:00 4.50 DRILL P 10:00 - 11:30 1.50 DRILL P 11:30 - 13:00 1.50 DRILL P 13:00 - 14:00 1.00 DRILL P 14:00 - 15:00 1.00 DRILL P 15:00 - 16:00 16:00 - 16:30 16:30 - 20:30 1/15/2007 20:30 - 21:30 21:30 - 22:30 22:30 - 00:00 00:00 - 00:30 00:30 - 01:00 1.00 DRILL P 0.50 DRILL P 4.00 DRILL P 1.00 DRILL N 1.00 DRILL N 1.50 DRILL N 0.50 DRILL N 0.50 DRILL N psi high. AOGCC representative John Crisp waived witness of BOP test. Test witnessed by BP WSL Duncan Ferguson and Nabors Tool pusher Larry W urdeman. SURF Remove test plug and install wear bushing. Rig down BOP test equipment and blow down lines. HMAN SURF Thaw out kelly hose for top drive. INT1 Pick up 15 joints of drill pipe and stand back in the derrick. INT1 Lay down lead collar and (1) NM stab from previous run. INT1 Pick up BHA #3 consisting of 9-7/8" MX-1V Hughes bit, 1.5 degree XP motor, ARC6, MWD, ADN6. Load nuclear source in AND. Run in the hole with remaing BHA from the derrick to 929'. Shallow pulse test MWD. INT1 Cut and slip drilling line. INT1 Run in the hole picking up drill pipe from 929' to 3223'. Rotate and pump thru tam port collar at 983'. 250 gpm, 575 psi. 30 rpm. INT1 Rig up test equipment and test casing to 3500 psi for 30 minutes. Recording pressure. INT1 Begin drilling cement at 3229'. Drill cement and landing collar to 3335'. 317 gpm, 1065 psi. 40 rpm, 3k tq. on 2 tq off. 5k WOB. up wt. 100k. S/O wt. 85k. Rot wt. 90k INT1 Displace mud to 8.8 ppg Pro-Flo SF mud. Mud wt. in 8.8 ppg. Out 8.8 ppg. INT1 Drill float shoe and new hole to 3370' at 487 gpm, 1272 psi. 40 rpm, 3k tq. on, 2k tq off, WOB 10k. Up wt. 105k. S/O wt. 88k. Rot wt. 90k. INT1 Circulate bottoms up at 621 gpm 1641 psi. Mud wt. in 8.8 ppg. Out 8.8 ppg. INT1 Perform leak off test to 1001 psi EMW of 14.6 ppg. INT1 Drill 9-7/8" hole from 3370' to 3990'. 637 gpm, 1920 psi on, 1902 psi off. 40 rpm, 4k tq on, 3k tq off. Up wt. 110k. S/O 98k. Rot wt. 100k. ART = 2.18 Hrs. AST = 0 Hrs. ADT = 2.18 Hrs. Jar Hrs = 31.22 Hrs. Actual ECD = 9.3 Calculated ECD = 9.14 RREP INT1 Attempt to orient to slide. Top drive brake not holding tq. Trouble shoot top brake, while circulating at 425 gpm, 980 psi. RREP INT1 Pull out of the hole from 3990' to 3321'. Encountered 20k over pull at 3536'. Back ream from 3530' to 3510'. 40 rpm 3k tq. 400 gpm, 870 psi. Intermittent over pulls of 5 to 10k from 3510' to 3321'. RREP INT1 Trouble shoot top drive brake system. RREP INT1 Trouble shoot top drive brake. Replace actuator valve. Function test top drive brake. RREP INT1 Run in the hole from 3321' to 3990'. No problems. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Page8of34~ Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING 1 Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations ___ ~_ 1/15/2007 01:00 - 12:00 ~ 11.00 DRILL P ~ INT1 ~ Directional drilling 9-7/8" hole from 3990' to 4570'. 611 gpm, 12:00 - 00:00 I 12.001 DRILL I P I I INT1 1/16/2007 100:00 - 04:00 I 4.001 DRILL I P I I INT1 04:00 - 05:30 I 1.501 DRILL I P I I INT1 05:30 - 09:30 4.00 DRILL P INT1 09:30 - 12:00 2.50 DRILL P INT1 12:00 - 12:45 0.75 DRILL P INT1 12:45 - 13:15 0.50 DRILL P INT1 13:15 - 15:00 1.75 DRILL P INTi 15:00 - 16:00 1.00 DRILL P INTi 16:00 - 17:30 1.50 DRILL P INT1 17:30 - 20:00 2.50 DRILL P INT1 20:00 - 00:00 4.00 DRILL P INT1 1/17/2007 00:00 - 00:30 0.50 EVAL P INT1 00:30 - 02:30 2.00 EVAL P INT1 02:30 - 04:00 1.50 EVAL P INT1 04:00 - 05:00 1.00 EVAL P INT1 05:00 - 10:30 5.50 EVAL P INT1 2200 psi on, 2080 psi off. 80 rpm, 6k tq on, 4k tq off. Up wt. 120k. S/O 110k. Rot wt. 110k. WOB 15 to 30k. Mud wt. in 8.9 ppg. Out 8.9 PPg• ART = 2.08 Hrs. AST = 2.93 Hrs. ADT = 5.01 Hrs. Jar Hrs = 36.2 Hrs. Actual ECD = 9.44 Calculated ECD = 9.35 Directional drilling 9-7/8" hole from 4946' to 5660'. 632 gpm, 2363 psi on, 2225 psi off. 80 rpm, 7k tq on, 4k tq off. Up wt. 125k. S/O 98k. Rot wt. 110k. W OB 30 to 40k. Mud wt. in 8.9 ppg. Out 8.9 ppg. ART = 3.40 Hrs. AST = 2.95 Hrs. ADT = 6.35 Hrs. Jar Hrs = 42.96 Hrs. Actual ECD = 9.52 Calculated ECD = 9.28 Directional drilling 9-7/8" hole from 5660' to 5850'. 617 gpm, 2448 psi on, 2230 psi off. 80 rpm, 6k tq on, 5k tq off. Up wt. 125k. S/O 105k. Rot wt. 110k. WOB 30 to 40k. Mud wt. in 8.9 PP9. Out 8.9 PPg• ART = 1.43 Hrs. AST = 0.62 Hrs. ADT = 2.05 Hrs. Jar Hrs = 45.01 Hrs. Actual ECD = 9.47 Calculated ECD = 9.29 Circulate bottoms up at 617gpm, 2302 psi. 80 rpm, 5k tq. Cycle pumps to down link MWD tools to density log only for caliper log during MAD pass. Mad Pass from 5850' to 4700', 610 gpm, 1975 psi, 100 rpm, 4K tq., 110K PU, 100K SO, 110K Rot., log C~ 500'/hr. Back ream f/4700' to shoe at 3337'. No hole problems encountered. CBU X 2.5 at 3340'. 572 gpm, 1507 psi. Blow down and service top drive. RIH (/3340' to 5850'. Tight at 4770'. Orient 30 deg left. Wash through, 523 gpm. Circulate, 648 gom, 2431 psi, 80 rpm, 4K tq., 125K PU, 96K SO, 106K Rot. No fill found. Monitor well, MW = 9.0. PJSM on POH. Blow down top drive. POH to 4178'. Pull over 25K at 5021', SO 20K, PU w/20K over. Pump dry job and POH to BHA ~ 930'. Drop 2-3/8" drift w/100' wireline tail at 3321' PJSM. Stand back HWDP and drill collars. PJSM on nukes. Remove nuke sources. LD ADN, MWD, PWD, Bit. Bearings failed on bit. 1 cone broken w/spindle exposed. PJSM w/Schlumberger, hands, WSL on drill pipe conveyed MDT tool and wireline safety. RU to run drill pipe conveyed Modular Formation Dynamics Tester "DPC MDT" formation pressure recorder/fluid sample catcher. MU MDT tool and RIH to 150'. Surface test MDT tool. PJSM. Hang sheave in derrick. PU drill pipe and RIH w/MDT tool to 10-3/4" shoe at 3337'. Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 7ES Date From - To Hours Task Code NPT 1/17/2007 105:00 - 10:30 I 5.501 EVAL I P 10:30 - 11:30 I 1.001 EVAL I P 11:30 - 14:30 3.00 EVAL P 14:30 - 00:00 9.50 EVAL P 1/18/2007 100:00 - 02:00 I 2.001 EVAL I P Start: 12/29/2006 Rig Release: 3/1 /2007 Rig Number: Page 9 of 34 ~ Spud Date: 12/29/2006 End: 3/1 /2007 Phase Description of Operations INT1 INT1 INT1 INTi INT1 02:00 - 14:00 12.00 EVAL P INT1 14:00 - 20:00 6.00 EVAL N DFAL INT1 20:00 - 22:30 I 2.501 EVAL I P I I INT1 22:30 - 23:30 1.001 EVAL P INT1 23:30 - 00:00 0.50 EVAL P INTi 1/19/2007 00:00 - 02:00 2.00 EVAL P INT1 02:00 - 04:00 2.00 EVAL P INT1 04:00 - 08:00 4.00 EVAL P INT1 08:00 - 10:45 I 2.751 EVAL I P I I INT1 10:45 - 11:00 0.25 EVAL P INT1 11:00 - 15:00 4.00 EVAL P INT1 15:00 - 16:15 1.25 EVAL P INT1 16:15 - 18:00 I 1.751 EVAL I P I I INT1 Break circulation 167 gpm, 150 psi. Run into open hole. Wash down every 5th stand, 167 gpm, 160 psi. Continue to RIH to 4300' at 15'/minute. RU side entry sub. Hook up bottom sheave. RIH and engage wet connect. Bottom of BHA at 4307'. Circulate 167 gpm, 200 psi. 80K PU wt, 80K SO wt. BD topdrive. Run correlation log. Log formation pressures w/Schlumberger MDT tool f/4499' to 5579'. 25 tests performed w/18 good tests, 7 no seals, 1 supercharged. No difficulty w/hole conditions. Log formation pressures w/Schlumberger MDT tool f/5585' to 5804'. 6 tests performed w/5 good tests, 1 lost seal. A total of " 26 pressure points were taken with 6 failures. No difficulty w/hole conditions. Take formation fluid samples w/Schlumberger MDT tool (/2426' to 2505'. 3 samples acquired in the following order: 5804', 5384', and 5585'. No difficulty w/hole conditions. MDT tool stuck with packer elements across sample section at _ 5585'. Packer would not deflate. Worked tool pulling to 125K PU on indicator (21.5K overpull on the tool) and down to 85K on indicator (8K slackoff on the tool). Tool free to move 12' up and down. Maximum upward movement 8' to 5577'. Surface readings indicate inflatable element fill up line was plugged trapping pressure in packer. Applied pressure to inflate packer then released pressure on tool through dump valve. Elements deflated and tools came free. Schlumberger engineer suggested the high probability of tool not releasing permanently if reset. Dump valve may fail after several activations during job. Rig team consulted with town team and decision made to end test without acquiring last two fluid samples f/5019' and 4738'. Monitor well. PJSM on pulling wireline and drillpipe. MW = 9.0 ppg. POH f/5572' to 4307'. Disconnect wireline from side entry sub. RD wireline. Clear floor. Service rig, topdrive, change hose on iron roughneck. POH with Schlumberger MDT tools from 4307' to 10-3/4" shoe at 3337'. MW = 9.0 ppg. No hole problems, no overpull. POH to MDT tools BHA. Lay down Schlumberger MDT BHA. No visible damage to inflatable packers and tools. Packers were slightly inflated to 8 13/16". Clear floor. Pick up 9 7/8" clean out BHA with used MX-C1 bit, mud motor with 1.5 deg bend and MW D. Shallow test MW D C~ 872' - OK. Blow down top drive. Connect blower hose. RIH from 912' to 4,162' picking up 105 joints of 4" drill pipe in singles. RIH stands from 4,162' to 4,856'. Saw 15k drag and overpull at 4,856'. PU to 4,832', fill pipe, RIH past 4,856' w/o problems. Continue RIH stands to TD C~3 5,850'. No fill found on bottom. Stage up the pumps to 606 gpm, 2,225 psi, 80 rpm and circulate. PU - 120k, SO - 95k, ROT - 103k. Pump a 40 bbl Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 10 of 34 ~ Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code ~ NPT Phase - - _ __ - - --- 1/19/2007 16:15 - 18:00 1.75 EVAL P INT1 18:00 - 18:30 I 0.501 EVAL I P I I INT1 18:30 - 22:00 I 3.501 EVAL I P I I INT1 22:00 - 23:30 1.50 EVAL P INT1 23:30 - 00:00 0.50 BOPSU P INT1 1/20/2007 00:00 - 01:15 1.25 BOPSU P INT1 01:15 - 03:00 I 1.751 BOPSUR N I DPRB I INT1 03:00 - 03:45 I 0.751 CASE I P I I INT1 03:45 - 05:30 1.75 CASE P INT1 05:30 - 06:00 0.50 CASE P INT1 06:00 - 08:00 2.00 CASE P INT1 08:00 - 08:30 0.50 CASE P INTi 08:30 - 11:00 2.50 CASE P INT1 11:00 - 12:30 1.50 CASE P 12:30 - 18:00 5.50 CASE P INT1 INT1 18:00 - 18:30 I 0.501 CASE I P I I INT1 Description of Operations hi-vis sweep from surface to surface. Saw a slight increase in cuttings while sweep came back to surface. Hole cleaned up shortly after sweep was out of the hole. MW in - 9.0 ppg, MW out - 9.0 ppg. Take SPR's. Monitor well -stable. Blow down top drive. PJSM for POOH. POH from 5,850' to BHA C~ 912' standing back the 4" DP and 4" HWDP - PU - 120k, SO - 95k @ TD. Tight spots w/ 20k overpull at 5,063', 4,770', and 4,672'. Wiped without pumps and pulled through w/o problem. LD Cleanout BHA. Clear and clean the rig floor. Pull the wear ring. Drain the BOP stack. Changeout the upper pipe rams from 3-1/2" x 6" variables to 7-5/8" rams. Test the door seals and rams to 250 psi / 3,500 psi -good. Test plug not moving. Troubleshoot. Double check all lock down screws. Work test plug out of hole. Some debris and cuttings on top of plug (seen after plug worked free) likely casued plug to hang up. After plug out of hole, no indication that lock downs were obstructing anything. RD testing equipment and make a dummy run with the 7-5/8" casing hangers RU to run 7-5/8" 29.7# L-80 BTC-M x TCII casing. PJSM for casing running operations. PU and RIH with 7-5/8" 29.7# L-80 BTC-m shoe track and check floats -holding. Continue PU and RIH with 7-5/8" 29.7# L-80 BTC-m casing to 995', utilizing BOL 2000 thread lubricant and torqued to the mark with -8.6k ftlbs. Filled every joint with the fillup tool and took PU & SO weights every 15 joints while running in the hole. RU the rig floor to run 7-5/8" TCII casing. Crossover and RIH with 7-5/8" 29.7# L-80 TCII to 3,307' - torque turning each connection with 10.1 k ftlbs and utilizing Jet Lube Seal Guard thread lubricant. Filled every joint with the fillup tool and took PU & SO weights every 15 joints while running in the hole. Circulate 1.5 bottoms up at 3,307' prior to going into the open hole with the casing - 250 gpm, 370 psi, PU - 125k, SO - 120k. Continue PU and RIH with 7-5/8" 29.7# L-80 TCII to 5,814 - torque turning each connection with 10.1 k ftlbs and utilizing Jet Lube Seal Guard thread lubricant. Filled every joint with the fillup tool and broke circulation every 15 joints RIH and circulated for 10 minutes every 15 joints while running in the hole. Washed the last joint down to 5,820'. PU - 185k, SO - 135k. MU the casing hanger and landing joint. Land the hanger on the ring with the shoe at 5,846'. LD the fillup tool and RU the cement head, PU - 185k, SO - 135k. Ran total of: 24 jts (includes 3 RA marker joints) 7 5/8" 29.7# L-80 BTC-M casing, 120 jts 7 5/8" 29.7# L-80 TCII casing Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Pale 11 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours ~ Task !Code NPT Phase ~ Description of Operations 1/20/2007 18:00 - 18:30 0.50 CASE P INT1 1 X-over jt 7 5/8" TCII box X BTC-M pin 86 straight 7-3/4" x 9-5/8" centralizers 43 stop rings Shoe ~ 5,846' RA tag ~ 5,561' OBc RA tag @ 5,478' OBa RA tag @ 5,317' 18:30 - 20:00 1.50 CEMT P INTi Circulate and condition mud for cement job. CBU x 1.5, not many cuttings across shakers, 191 gpm, 345 psi. RD Franks fillup too & RU cementing head. Hold PJSM with Schlumberger while circulating and begin hatching up the cement. 20:00 - 22:00 2.00 CEMT P INT1 Land the hanger on the ring and line up to Schlumberger. Pump 5 bbls H2O. Shut down. Pressure test surface cementing lines to 4,000 psi - OK. Pump 58 bbls 10.7 ppg MudPush Spacer. Drop bottom plug. Chase the spacer with 48.5 bbls 15.8 ppg "G" batch mixed lead cement @ 5 bpm, 350 psi. Switch tanks and pump 42.3 bbls 16.3 ppg "G" Durastone batched mixed tail cement ~ 5 bpm, 300 psi. Shut down, drop top plug and kick out with 10 bbls H2O. Shut down, switch to rig pumps and pump 256 bbls of seawater @ 5 bpm, 130 psi. Slow pumps down to 3 bpm, 1,300 psi. Bump plug with calculated displacement of 256 bbls ~ 96% with 2,190 psi - hold for 5 min - OK. Bleed pressure off. Check floats - OK. Bumped plug C~ 22:00 1/20/2007. Reciprocated pipe in 15-20' strokes until flow loss was noted while moving pipe. Flowline would fall from 20% to 13-15% during strokes. Landed casing and flow returned to full flow. ', -40 bbls lost to formation prior to bottom plug shearing and cement turning corner. Full returns while cement coming up annulus. 22:00 - 00:00 2.00 CEMT P INT1 RD the cement head and the landing joint. Install packoff and run in the lock down screws - 450 ftlbs. Pressure test to 5,000 psi and held for 5 minutes before bleeding by packoff. Test failed. 1/21/2007 00:00 - 01:30 1.50 CEMT P INT1 Retorque lock down screws to 550 ft-Ibs. Pressure test to 5,000 psi and hold for 30 minutes -Good. 01:30 - 03:00 1.50 CEMT P INT1 LD and clear the floor of the cement head, elevators and the long bales. Changeout to the short bales and elevators. Clean out gravel and mud from under rotary table & drawworks in preparation for taking on MOBM. Out of critical Path: Perform infectivity test on 10-3/4" x 7-5/8" annulus. Annulus broke down at 6 bbls away and -950 psi . While waiting for 500 psi compressive strength, every 30 minutes pump another 5 bbls mud down OA. No increase in breakdown pressure observed. 03:00 - 05:00 2.00 BOPSU P INT1 Check kill and choke valves. Function pipe rams and annular preventer. Make up BOP stack jetting tool and jet stack. Jet flowline, rig down tools. 05:00 - 06:00 1.00 BOPSU P INT1 Flush the stack and install the test plug. Changeout the upper rams from 7-5/8" to 3-1/2" x 6" variables. RU testing Printed: 3/5/2007 7:03:14 AM • • BP EXPLORATION Page i2 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING 1 Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date ~ From - To Hours Task Code ~ NPT Phase Description of Operations 1/21/2007 05:00 - 06:00 1.00 BOPSU P INT1 Equipment. Prepare to test BOPE. 06:00 - 10:30 4.50 BOPSU P INT1 Test BOPE to 250 psi low, 3,500 psi high with 4" test joint Perform accumulator test. Witnessing of test waived by AOGCC rep Chuck Scheve. Test witnessed by BP WSL Duncan Ferguson, NAD TP Chris Weaver. 10:30 - 11:30 1.00 BOPSU P INTi 11:30 - 12:30 1.00 BOPSU P INT1 12:30 - 13:30 I 1.001 BOPSUFtP I I INT1 13:30 - 18:00 4.50 DRILL P PROD1 18:00 - 19:15 1.25 DRILL P PROD1 19:15 - 20:00 0.75 DRILL P PROD1 20:00 - 20:30 0.50 DRILL P PROD1 20:30 - 21:30 1.00 DRILL P PROD1 21:30 - 00:00 2.50 DRILL P PROD1 1/22/2007 100:00 - 01:15 I 1.251 DRILL I P I I PROD1 01:15 - 02:30 I 1.251 CASE I P I I PROD1 02:30 - 03:00 0.50 DRILL PROD1 03:00 - 05:30 2.50 DRILL P PROD1 05:30 - 07:30 2.00 DRILL N RREP PROD1 07:30 - 09:30 2.00 DRILL P PROD1 09:30 - 11:00 1.50 DRILL P PROD1 11:00 - 12:00 1.00 DRILL P PROD1 12:00 - 12:30 I 0.501 DRILL I P I I PROD1 12:30 - 14:00 I 1.501 DRILL I P I I PRODi 14:00 - 14:45 I 0.751 DRILL I P I I PROD1 14:45 - 00:00 I 9.251 DRILL I P I I PROD1 11/23/2007 100:00 - 04:00 I 4.001 DRILL I P I I PROD1 Note: Also tested manual and hydraulic chokes. Both held 3,500 psi pressure. Out of critical path: RU Little Red and freeze protect 10-3/4 x 7-5/8 annulus w/ 87 bbls of dead crude (70 degF) after receiving UCA results showing more than 500 psi compressive strength. Rig down 4" test equipment. Rig up 4 1/2" test equipment. Test upper and lower variable bore rams to 250 psi low, 3,500 psi high for 5 minutes each with 4 1/2" test joint. Rig down BOPE test equipment. Pull test plug. Install wear bushing. Blow down surface lines. PJSM. MU BHA#5 and RIH. RIH with BHA#5 picking up single joints of 4" HT40 DP from the pipe shed. Shallow test the MWD tools -good, 310 gpm, 820 psi Service and lubricate the rig and the top drive. Slip and Cut 67' of drilling line. Continue RIH with BHA#5 picking up single joints of 4" HT40 DP from the pipe shed from 1,194' - 4,058'. Continue RIH with BHA#5 w/ stands of 4" HT40 DP from the derrick from 4,250' - 5,700'. Tagged up on cement stringers at -5,700', and set down 25k+ on top of cement at 5,730'. RU and pressure test the 7-5/8" casing to 3,500 psi. Chart and hold for 30 minutes -good test. RD and blowdown lines. Transfer HWDP to drillers side of derrick. Drill cement to the 7-5/8" float collar on depth at 5,762'. Drill shoe track to 5,843'. PU wt. 110K, SO wt. 95K, Rot. wt. 105K, 260 gpm, 1130 psi, 40 rpm, 3K tq. Swap out faulty 8" butterfly valves in mud suction lines in pits. Clean pits, shaker beds, and ditches for oil base mud swap. Load pits w/9.0 ppg MOBM. Circulate and displace well to 9.0 ppg MOBM, 300 gpm, 2250 psi. Drill shoe out + 20' of new hole fl5843' to 5870', 230 gpm, 1553 psi, PU wt. 105K, SO wt 95K, Rot. wt. 100K, 50 rpm, 3K tq. Perform FIT to 10.2 ppg EMW at 5870' MD/5123' TVD, 320 psi surface pressure w/9.0 ppg MOBM. Set ECD benchmarks. 5863 MD, 250 gpm, = 9.83 ECD, 320 gpm = 9.99 ECD. Directionally drill/slide f/5870' to 6482'. Survey ea. 30'. 3K , WOB, 300 gpm, 2547 psi on, 2407 psi off, 3K tq. on, 3K tq. off, PU wt 108K, SO wt 90K, Rot wt. 95K. Actual ECDs = 10.01, Calculated ECDs = 10.06 ADT f/24 hrs = 4.2 hrs. ART = 2.98 hrs. AST = 1.22 hrs. Progress f/24 hrs. =636'. Directionally drill/slide f6482' to 6867'. 3K WOB, 300 gpm, Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 7ES Date ~~ From - To Hours Task ~ Code NPT ~ _ _ 1/23/2007 (00:00 - 04:00 4.00 ~ DRILL P 04:00 - 05:00 I 1.001 DRILL I P 05:00 - 12:00 I 7.001 DRILL I P 12:00 - 13:00 I 1.001 DRILL I P 13:00 - 14:30 ~ 1.50 ~ DRILL ~ P 14:30 - 15:30 I 1.001 DRILL I C 15:30 - 00:00 8.501 DRILL C 1/24/2007 100:00 - 06:00 I 6.001 DRILL I C 06:00 - 13:30 I 7.501 DRILL I C 13:30 - 16:00 I 2.501 DRILL I C 16:00 - 17:30 1.50 STKOH C 17:30 - 22:00 4.50 STKOH C 22:00 - 00:00 I 2.00 I STKOH I P 1/25/2007 100:00 - 06:00 I 6.001 DRILL I P Page 13 of 34 Spud Date: 12/29/2006 Start: 12/29/2006 End: 3/1 /2007 I Rig Release: 3/1/2007 Rig Number: Phase Description of Operations PROD1 2450 psi on, 2380 psi off, 4K tq. on, 4K tq. off, PU wt 110K, SO wt 90K, Rot wt. 98K. Actual ECDs = 10.1, Calculated ECDs = 10.08. PROD1 Circulate off bottom. Geo consulting with town on possible fault location or formation dip change. Decision made to go up 8 TVD ft and continue drilling. PROD1 Directionally drill/slide from 6867' to 7576'. Sliding up 8' TVD due to formation dip. 3K WOB, 300 gpm, 2680 psi on, 2575 psi off, 60 rpm, 5K tq. on, 4K tq. off, PU wt 115K, SO wt 88K, Rot wt. 98K. Actual ECDs = 10.1, Calculated ECDs = 10.16 PROD1 Circulate/reciprocate. 7576', 300 gpm, 2427 psi, 60 rpm, 3K tq. PU wt. 115K, SO wt. 88K, Rot. wt. 95K. Geo consulting w/town for plan forward. Drilled out top of OBd at unexpectedly low depth. PROD1 Directonally drill f/7576' to 7631'. 4K WOB, 301 gpm, 2570 psi on, 2506 psi off, 60 rpm, 4K tq. on, 4K tq. off, PU wt 115K, SO wt 85K, Rot wt. 98K. PROD1 Circulate/reciprocate. Wait on AOGCC approval for PBOH-01 sidetrack plan 13 approval. PROD1 Drill pilot hole per geo plan 13 to verify fault location and formation dip f/7631' to 7914' w/30' surveys. 4K WOB, 301 gpm, 2664 psi on, 2460 psi off, 60 rpm, 4K tq. on, 4K tq. off, PU wt 125K, SO wt 75K, Rot wt. 98K. ECD calc. = 9.94, ECD actual = 10.14. ADT = 11.24 hrs f/24 hrs. ART = 4.79 hrs. AST = 6.45 hrs. Progress f/24 hrs = 1432'. PROD1 Directionally drill pilot hole W204PBif/7914' to 8299' defining fault and formation dip properties. 15K WOB, 301 gpm, 2750 psi on, 2670 psi off, 60 rpm, 4K tq. on, 4K tq. off, PU wt 128K, SO wt 88K, Rot wt. 103K. ECD calc. = 10.07, ECD actual = 10.27. Per geo following formation dip down at 87 degrees. Pump 15 bbl. 10.5 ppg sweep at 8175' w/5% increase in cuttings. PROD1 Directionally drill pilot hole f/8299' to 8930'. 6K WOB, 303 - gpm, 2954 psi on, 2820 psi off, 60 rpm, 5K tq. on, 4K tq. off, PU wt 133K, SO wt 75K, Rot wt. 105K. PROD1 Monitor well. MW = 9.0. Pump out of hole to 7504'. 300 gpm, 2750 psi. No hole problems seen during POH. PROD1 Trench for OH sidetrack f/7550' to 7580'. 304 gpm, 2556 psi. PROD1 Time drill and establish OH sidetrack f/7580' to 7594' 310 gpm, 2493 psi, 64 rpm, 4K tq. 102K Rot. wt. PROD1 Directionally drill f/7594' to 7695'. 4K WOB, 298 gpm, 2659 psi on, 2352 psi off, 60 rpm, 5K tq. on, 3K tq. off, PU wt 115K, SO wt 90K, Rot wt. 98K. ECD Calc = 10.07, ECD Act. = 10.10. ADT f/24 hrs. = 12.03 hrs. ART = 5.63 hrs. AST = 6.4 hrs. Footage f/24 hrs. = 1147'. PROD1 Directionally drill/slide from 7695' to 8005'. 3K WOB, 300 gpm, 2571 psi on, 2490 psi off, 60 rpm, 5K tq. on, 4K tq. off, PU wt 128K, SO wt 83K, Rot wt. 100K. Actual ECDs = 10.18, Calculated ECDs = 9.97. Printed: 3/5/2007 7:03:14 AM • • BP EXPLORATION Page 14 of 34 ~ Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date !From - To Hours ; Task ~ Code NPT ~ Phase 1/25/2007 00:00 - 06:00 6.00 DRILL P PROD1 06:00 - 12:00 6.00 DRILL P PROD1 12:00 - 00:00 I 12.001 DRILL I P 1/26/2007 100:00 - 06:00 I 6.001 DRILL I P 06:00 - 10:30 I 4.501 DRILL I P 10:30 - 11:30 I 1.001 DRILL I P 11:30 - 00:00 I 12.501 DRILL I P 11/27/2007 100:00 - 00:30 I 0.501 DRILL I P 00:30 - 01:30 I 1.001 DRILL I C 01:30 - 02:30 1.00 DRILL P 02:30 - 05:00 2.50 DRILL P 05:00 - 06:30 I 1.50) DRILL I P PROD1 PROD1 PROD1 PROD1 PROD1 Description of Operations Back ream and survey every 30'. Directionally drill/slide from 8005' to 8510'. 6K WOB, 300 gpm, 2750 psi on, 2620 psi off, 60 rpm, 5K tq. on, 4K tq. off, PU wt 128K, SO wt 88K, Rot wt. 105K. Actual ECDs = 10.37, Calculated ECDs = 10.04. Back ream and survey every 30'. Directionally drill/slide from 8510' to 9371'. 5K WOB, 300 gpm, 2970 psi on, 2879 psi off, 60 rpm, 5K tq. on, 5K tq. off, PU wt 125K, SO wt 80K, Rot wt. 103K. Surveys every 30'. Actual ECDs = 10.74, Calculated ECDs = 10.39. Back ream and survey every 30'. ADT = 12.24 hrs/24 hrs. ART = 7.08 hrs. AST = 5.16 hrs. Footage f/24 hrs = 1681'. Directionally drill from 9371' to 9775'. 5K WOB, 300 gpm, 3030 psi on, 2950 psi off, 60 rpm, 6K tq. on, 5K tq. off, PU wt 128K, SO wt 80K, Rot wt. 100K. Back ream and survey every 30'. Actual ECDs = 10.77, Calculated ECDs = 10.45. Directionally drill 89775' to 10105'. 7K WOB, 300 gpm, 3000 psi on, 2920 psi off, 60 rpm, 7K tq. on, 6K tq. off, PU wt 140K, SO wt 60K, Rot wt. 100K. Back ream and survey every 30'. Actual ECDs = 10.77, Calculated ECDs = 10.45. CBU. 2880 psi, 60 rpm, 6K tq. MW = 9.0 ppg. Could not get weight transfer to bit. S/D and consult w/town team. MADPass f/10105' to 6500'. MW = 9.0. 600'/hr., 300 gpm, 2870 psi, 60 rpm, 6K tq. Noted at 7683' MD/5094' TVD. 400 psi increase. Tq. increase f/6K to 9K. Work up through tight spot backreaming. OK. Continue MADPass w/ same parameters. Cut LVT input to 2 bbls/hr during MADPass. No increase in cuttings over shakers during MADPass. Shakers 1,2,3,4 all w/4 230 HC screens. ADT f/24 hrs. = 6.23 hrs. ART = 3.48 hrs. AST = 2.75 hrs. Footage = 734'. PROD1 MADPass f/6500' to 7-5/8" casing shoe at 5846'. MW = 9.0 ppg. 600'/hr 60 rpm, 300 gpm, 2870 psi. PROD1 CBU x 2 above shoe at 5846' to avoid washout. 285 gpm, 1930 psi. Reciprocate 20' strokes. No noticeable increase in cuttings across shakers. PRODi Service topdrive. Repair derrick tv camera mount. PROD1 RIH to 10105' checking and recording UP/Down wts. every 5 stands. Results as follows: 5840' 105/95, 6452' 103/90, 6930' 105/88, 7408' 103/85, 7580' 110/88, 7875' 110/88, 8325' 115/88, 8787' 115/88, 9275' 113/85, 9753' 120/88, 9945' 120/80, 10105' 120/88. PROD1 Directionally drill rotating from 10105' to 10135'. 3K WOB, ~ 298 gpm, 3025 psi on, 2908 psi off, 60 rpm, 6K tq. on, 5K tq. off, PU wt 120K, SO wt 80K, Rot wt. 99K. Directionally drill sliding from 10135' to 10169'. 298 gpm, 2907 off, 2950 on, PU wt 120K, SO wt 80K, sliding wt. 85K. 06:30 - 07:30 1.00 DRILL P PROD1 CBU. 300 gpm, 2930 psi, 60 rpm, 5K tq. ECDs calc. = 10.46. ECDs act. = 10.49. Printed: 3/5/2007 7:03:74 AM • BP EXPLORATION Page 15 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To ~ Hours Task Code NPT Phase Description of Operations 1/27/2007 07:30 - 10:30 3.00 DRILL P PRODi Monitor well. OK. POH to 5782'. MW = 9.1 ppg. No hole problems. No swabbing. 10:30 - 13:30 3.00 DRILL P PROD1 Monitor well. OK. Pump dry job, POH to BHA # 5 at 240'. MW 9.1 PPg• 13:30 - 17:30 4.00 DRILL P PROD1 PJSM w/all hands, Schlumberger, WSL on handling nuke sources. Handle nuke sources. LD nukes. Download MWD data. Clean and clear floor. Function test rams. 17:30 - 18:30 1.00 DRILL PROD1 Service topdrive, crown, install derrick camera bracket and camera. 18:30 - 20:30 2.00 DRILL P PROD1 PJSM w/all hands, Schlumberger, WSL on handling nuke sources. PU nukes. Load sources. PU drilling BHA # 6 as follows: DSX146H+GJUW rerun S/N 110800, 1.50 deg. XP Motor AIM, bypass/float sub, NM stabilizer, NM Flex lead drill collar, Impulse MWD, VPWD, ADN 4, 3 NM Flex drill collars, hydraulic jars, 234 jts. 4" HT40 drill pipe, XO, 7 jts. 4" spiral HWDP, 28 jts 4" HWDP (bottom of HWDP at 4966.27 MD/max. 50 deg. incl. w/projected TD of 12662'), and 4" HT40 drill pipe to surface. 20:30 - 23:00 2.50 DRILL P PRODi RIH to 716'. Shallow test MWD, 250 gpm, 1060 psi, continue in hole to 5840'. 23:00 - 00:00 1.00 DRILL P PROD1 PJSM w/hands, cut and slip 102' of drilling line. MOBM lost to hole = 26 bbls/24 hrs. 1/28/2007 00:00 - 04:00 4.00 DRILL P PROD1 RIH f/716' to 10169'. No hole problems. Wash down w/last stand to bottom. Get SPRs. For Mauricio, recorded PU/SO wts running in hole as follows: 5973' 105/93, 6452' 105/90, 6931' 105/88, 7408' 105/88, 7882' 110/90, 8304' 118/90, 8754' 120/95, 9231' 123/90, 9709' 125/88. 04:00 - 05:00 1.00 DRILL P PROD1 Directionally drill from 10169' to 10270'. 300 gpm, 3170 off, 3270 on, PU wt 130K, SO wt 90K, rot wt. 105K, 60 rpm. 05:00 - 07:00 2.00 DRILL N SFAL PROD1 Loss of signal to MWD. Shut down and troubleshoot surface equipment. MADPass f/10270' to 10178' Inflate pulsation dampener on # 1 pump, clean out suction screens on #2 pump. 07:00 - 12:00 5.00 DRILL P PROD1 Directionally drill f/10270' to 10666'. PU wt. 130K, SO wt. 88K, ROT wt. 105K, 300 gpm, 3120 psi on, 3060 psi off, 60 rpm, 6K tq on, 5k tq off. Backream and survey every 30'. 12:00 - 00:00 12.00 DRILL P PROD1 Directional drilling f/10666' to 11580'. PU wt 145K, SO wt 80K, ROT wt. 105K, 300 gpm 3380 psi on, 3195 psi off, 60 rpm, 7K tq on, 6K tq off. No sweeps pumped. ECDs calc. = 10.5 ppg., ECDs act. = 10.82 ppg. ADT f/24 hrs. = 10.02 hrs., AST = 1.6 hrs, ART = 8.42 hrs. Footage f/24 hrs = 1411'. 1/29/2007 00:00 - 06:00 6.00 DRILL P PROD1 Directional drilling f/11580' to 12020'. PU wt 140K, SO wt 70K, s ROT wt. 105K, 300 gpm 3450 psi on, 3360 psi off, 60 rpm, 8K tq on, 7K tq off. No sweeps pumped. Backream/survey every 30'. ECDs calc. = 10.54 ppg., ECDs act. = 10.81 ppg. 06:00 - 13:00 7.00 DRILL P PROD1 Directionally drilling f/12020' to 12630'. PU wt 143K. SO wt 68K, ROT wt 103K, gpm 300, psi on 3300, psi off 3268, tq. on Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 16 of 3~ Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours l Task ~ Code NPT Phase Description of Operations l 1/29/2007 06:00 - 13:00 7.00 DRILL P PROD1 7K, tq. off 6K, rpm 60. From 00:00 to 13:00 losses were 7-10 bbls/hr. w/pumps on, wellbore static w/pumps off. 13:00 - 14:00 1.00 DRILL P PROD1 CBU. Downlink MWD data. Monitor well. Static. MW = 9.1 PPg• 14:00 - 22:00 8.00 DRILL P PROD1 POH MADPassing. f/12630' to 10247' at 600'/hr. 300 gpm, 3410 psi, 60 rpm, 6K tq., ROT wt. 103K. High resolution MADPass interval f/10247' t/10147' at 100'/hr, 300 gpm, 3125 psi, 5K tq. Lost swab on pump #1 at 10212'. Shut in # 1 and continue w/# 2 at reduced pump rate of 225 gpm, 1920 psi, 60 rpm. Signal good. 22:00 - 00:00 2.00 DRILL P PROD1 Back ream OOH f/10147' to 9805'. Both pumps back on line, 300 gpm, 3026 psi, 5K tq., 60 rpm. MW = 9.1 ppg. ADT f/24 hrs = 6.39 hrs, AST = 1.77 hrs. ART = 4.9 hrs. Footage f/24 hrs = 1050' Fluid losses during drilling/MADPassing = 5-10 bbls/hr. When well bore static losses = 0. Total fluid losses f/24hrs = 109 bbls. 1/30/2007 00:00 - 01:30 1.50 DRILL P PROD1 MADPass swell packer seat f/9705' to 9697' at 100'/hr 300 gpm, 3025 psi 60 rpm, tq. 6K. 01:30 - 03:00 1.50 DRILL P PROD1 Backream POH to swell packer seat from 9697' to 8147'. 03:00 - 04:30 1.50 DRILL P PROD1 MADPass f/8147' to 8047' at 100'/hr, 300 gpm, 2550 psi, 60 rpm, 5k tq. 04:30 - 05:00 0.50 DRILL P PROD1 Backream POH to swell packer seat from 8047' to 7597'. LD two jts. HW DP. 05:00 - 06:30 1.50 DRILL P PROD1 MADPass from 7597' to 7497' at 100'/hr 300 gpm 2650 psi. 60 rpm 3.5k tq. 06:30 - 08:00 1.50 DRILL P PROD1 Backream from 7497' to 5800'. 08:00 - 09:30 1.50 DRILL P PROD1 MADPass from 5725' to 5685' and from 5640' to 5600'. Verifying RA marker placement. 09:30 - 11:00 1.50 DRILL P PROD1 Service top drive and blocks. Adjust brakes and brake linkage. Replace leaking hydrulic hoses to rotary table motor. 11:00 - 12:00 1.00 DRILL P PROD1 Run in the hole to 7738'. No problems. Lost 24 bbls of mud to well bore. 12:00 - 13:00 1.00 DRILL P PROD1 Run in the hole from 7738' to 8247'. No problems. 13:00 - 14:30 1.50 DRILL P PROD1 MADPass from 8247' to 8147' at 100' / hr. 310 gpm 2950 psi. 60 rpm 3k tq. 130k Up wt. S/O wt. 95k. 90k Rot wt. 14:30 - 16:00 1.50 DRILL P PROD1 Run in the hole from 8147' to 10247'. No problems. 16:00 - 17:30 1.50 DRILL P PROD1 MADPass from 10247' to 10147' at 100' / hr. 300 gpm 2975 psi. 60 rpm 4k tq. 128k Up wt. S/O wt. 90k. 100k Rot wt. 17:30 - 19:00 1.50 DRILL P PROD1 Run in the hole from 10247' to 12630'. Taking 15k down wt. at 10880'. Wipe area clear. 19:00 - 20:00 1.00 DRILL P PROD1 Circulate bottoms up at 300 gpm 3515 psi. Rotate and reciprocate pipe. 140k Up wt. 70k S/O wt. 103k Rot wt. 60 rpm 5.5k tq. Calculated ECD = 10.71. Actual ECD = 10.86. 20:00 - 22:00 2.00 DRILL P PROD1 Displace well bore to 9.0 ppg solids free Oil Base mud at 293 gpm 3290 psi. Mud wt. in 9.0 ppg. Out 9.0 ppg. 22:00 - 00:00 2.00 DRILL P PROD1 Monitor well bore. Static loss rate of 3 bbl / hr. Pull out of the hole from 12630' to 10188'. No problems. 140k Up wt. 80k S/O wt. Lost 20 bbls of mud to well bore. Total mud lost in 24 hr = 44 Printed: 3/5!2007 7:03:14 AM BP EXPLORATION Page 17 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date ;From - To ~ Hours II Task ;Code NPT ~ Phase l --- _ . _ 1- - --- 1/30/2007 22:00 - 00:00 2.00 DRILL P PRODi 1/31/2007 00:00 - 05:00 5.00 DRILL P PROD1 05:00 - 05:30 0.50 DRILL P PROD1 05:30 - 07:30 2.00 DRILL P PROD1 07:30 - 09:30 2.00 DRILL P PROD1 09:30 - 10:00 0.50 DRILL P PROD1 10:00 - 12:00 2.00 CASE P RUNPRD 12:00 - 13:30 1.50 CASE P RUNPRD 13:30 - 14:00 0.50 CASE N WAIT RUNPRD 14:00 - 15:00 1.00 CASE N WAIT RUNPRD 15:00 - 23:30 8.50 CASE N WAIT RUNPRD 23:30 - 00:00 0.50 CASE N WAIT RUNPRD Description of Operations bbls. Pull out of the hole from 10188' to 5776'. Drop 2.25" Drift. Monitor well bore. Static. Service top drive and adjust brakes. Pull out of the hole from 5776' to 238'. Remove Nuclear source from ADN. Lay down BHA. Clean and clear rig floor. Rig up Nabors casing equipment. Load pipe shed with liner and jewerly. Rig down Nabors casing equipment. Make up mule shoe and run in the hole to 1537' with kill string. Suspend operations due to phase 3 on pad. Pull out of the with kill string. 2/1/2007 00:00 - 01:00 1.00 CASE N WAIT RUNPRD 01:00- 06:00 5.00 CASE P RUNPRD 06:00 - 16:30 I 10.501 CASE I P I I RUNPRD 16:30 - 17:00 ( 0.501 CASE P I RUNPRD 17:00 - 18:30 I 1.501 CASE I P I I RUNPRD 18:30 - 19:00 0.50 CASE P RUNPRD 19:00 - 23:00 4.00 CASE P RUNPRD 23:00 - 23:30 0.50 CASE P RUNPRD 23:30 - 00:00 0.50 EVAL P RUNPRD Lost 31 bbls of mud to well bore in 24 hrs. Rig up Nabors casing equipment. Run in the hole with 4.5" 12.6# L-80 BTC slotted liner and 4.5" 12.6# L-80 IBT solid liner. Average make up tq on BTC 3800 ft/pd. Check Up and Dwn weights every 10 joints ran. Pick up and make up HMC 7-5/8" x 5-1/2" liner hanger and 7-5/8" x 5-1/2" ZXP liner top packer. Ran a total of 138 joints of slotted liner. Ran a total of 22 joints of solid liner. Ran a total of 169 4-5/8" x 5-3/4" free floating centralizers. Run in the hole with 4.5" liner on 4" HT-40 dp, 4-3/4" steel drill collars and 4" hwdp from 7021' to bottom at 12630'. Up wt. 155k. S/O wt. 70k. Pick up 2' off bottom. Circulate drill pipe volume at 77 gpm, 648 psi. Break out top drive. Drop 1-3/4" Baker Lite Ball. Make up top drive and pump ball down at 4 bbl/min 500 psi. Seat ball and pressure up to 2100 psi to set hanger. Bleed off pressure and set down 40k to confrim hanger set. Pressure up to 3500 psi and hold for 5 min. Bleed off pressure. Pick up to 50k. Rotate 15 right hand turns, getting 3 back. Pick up 3' to confrim released from hanger. Close Hydril and pressure up back side to 2000 psi and test packer for 10 min - OK. Bleed off pressure. Pick up 6' to 130k Up wt. Set 40k down reconfriming hanger set. Pick up 37' to pull seals out. Float Shoe C~1 12628' Tops Swell Packer #1 ~ 10105' Swell packer #2 ~ 9690' Swell Packer #3 @ 8004' Swell Packer #4 C~3 7424' ZXP Liner Top Packer ~ 5607' Circulate bottoms up at 233 gpm, 1019 psi. Monitor well bore. Pump dry job. Pull out of the hole. Lay down 6 joints of 4" HW DP and 12 4-3/4" steel drill collars. Setting back 2 stands of 4-3/4" steel drill collars in the derrick. Make service breaks on C-2 running tool and lay down. Rig up Schlumberger wire line. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 18 of 34 Operations Summary Report 3eg~ n L1 Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: i Date j From - To Hours ~ Task Code NPT Phase Description of Operations 2/1/2007 2/2/2007 23:30 - 00:00 00:00 - 01:00 01:00 - 04:00 04:00 - 06:30 06:30 - 10:30 10:30 - 11:30 11:30 - 12:00 0.50 1.00 3.00 2.50 4.00 1.00 0.50 EVAL EVAL EVAL EVAL EVAL EVAL EVAL P P N P P P P FAL RUNPRD RUNPRD RUNPRD RUNPRD RUNPRD RUNPRD RUNPRD Lost 11 bbls of mud to well bore in 24 hrs. Pick up and make up USIT and CBL tools Trouble shoot logging tools at surface. Unable to obtain power between tools. Change out Gamma Ray. Run in the hole with USIT and CBL. Log with USIT and CBL while pulling out of the hole. Rig down Schlumberger wire line. Ad'ust brakes. 12:00 - 13:30 1.50 TWHIP P WEXIT Make up OBc whip stock assembly. 13:30 - 17:30 4.00 STWHIP P WEXIT Run in the hole form 1170' to 5567'. Shallow pulse test MWD at 1266' 255 gpm, 870 psi. 17:30 - 18:00 0.50 STWHIP P WEXIT Oreint whipstock 17 LHS. Up 100k. S/O 95k. Insert dummy seal assy. into tie back sleeve. Set down 15k to set whipstock. Pull 10k up wt. to confrim whipstock set.Set down 45k to shear mills from whipstock. 18:00 - 19:00 1.00 STWHIP P WEXIT Test seal assy to 1500 psi for 5 min. Displace SFMOBM to 9.0 ppg LSOBM at 300 gpm, 1910 psi. 19:00 - 00:00 5.00 STW HIP P WEXIT Milling window from 5528' to 5540' + 6' new hole to 5546'. Up wt 110k. S/O wt. 95k. Rot wt. 105k. Tq 4k. 276 gpm, 1600 psi. W OB 3 to 5k. TOW ~ 5528' BOW QQ 5540' 2/3/2007 00:00 - 01:00 1.00 STWHIP P WEXIT Drill from 5546' to 5559'. Up wt 110k. S/O wt. 95k. Rot wt. 105k. Tq 4k. 276 gpm, 1600 psi. WOB 3 to 5k. 01:00 - 02:00 1.00 STW HIP P WEXIT Pump 25 bbl sweep while working window area from 5528' to 5559'. Work mills across window with no pumps or rotation. No problems. 110k Up wt. 95k S/O wt. 02:00 - 06:00 4.00 STWHIP P WEXIT Monitor well bore for 10 min. Static. Pump dry job. Pull out of the hole from 5559' to 1170'. 06:00 - 08:30 2.50 STWHIP P WEXIT Rack back 4" HWDP and 4-3/4" steel drill collars in the derrick. Break, Gauge and lay down mills. Upper watermelon mill full gauge. Clear and clean rig floor. 08:30 - 09:00 0.50 STWHIP P WEXIT Pick up perforated sub and flush BOP. 09:00 - 09:30 0.50 BOPSU P WEXIT Pull wear bushing. Install test plug. 09:30 - 12:00 2.50 BOPSU N HMAN WEXIT Attempt to remove blind rams and install blind shear rams. Bolts on ram doors had been over tightened from previous blind shear ram change out. Inspect bolts and threads for damage. 12:00 - 13:00 1.00 BOPSU P WEXIT Change blind rams to blind shear rams. 13:00 - 13:30 0.50 BOPSU P WEXIT Rig up test equipment. 13:30 - 17:30 4.00 BOPSU P WEXIT Test BOP's and all associated valves to 250 psi 5 min low, 3500 psi 5 min high. BOP test witnessed by AOGCC rep Jeff Jones. BP WSL Chris Clemens. Nabors tool pusher Larry W urdeman. 17:30 - 18:00 0.50 BOPSU P WEXIT Rig down test equipment. Pull test plug install wear bushing. 18:00 - 20:30 2.50 STWHIP N SFAL WEXIT AIM in XP motor failed surface test. Mobilize motor from Schlumberger yard (Back up motor with 50 hours on it OK). While waiting on motor extra HWDP was picked up and stood back in the derrick. Slip and cut 119' of drilling line. New motor passed surface test. 20:30 - 23:00 2.50 STWHIP P WEXIT Pick up BHA consisting of RR# 7, 6-3/4" DSZ146H+GJUW Bit, Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 19 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date !From - To j Hours Task Code NPT Phase Description of Operations 2/3/2007 ~ 20:30 - 23:00 ~ 2.50 ~ STWHIP~ P ~ W EXIT 1.5 degree XP motor w/ AIM, Float sub, NM stb, NM flex lead 23:00-00:00 I 1.001STWHIPIP I (WEXIT 2/4/2007 00:00 - 02:30 2.50 STWHIP P WEXIT 02:30 - 03:30 1.00 STWHIP P WEXIT L~ 03:30 - 04:30 1.00 DRILL P PROD2 04:30 - 05:00 0.50 DRILL N SFAL PROD2 05:00 - 05:30 0.50 DRILL N SFAL PROD2 05:30 - 06:30 1.00 DRILL N SFAL PROD2 06:30 - 07:00 0.50 DRILL N SFAL PROD2 07:00 - 12:00 5.00 DRILL P PROD2 12:00 - 19:30 I 7.501 DRILL I P I I PROD2 19:30 - 20:00 0.50 DRILL N RREP PROD2 20:00 - 22:30 2.50 DRILL P PROD2 22:30 - 23:30 ~ 1.00 ~ DRILL ~ N ~ SFAL ~ PROD2 23:30 - 00:00 I 0.501 DRILL I P I I PROD2 dc, MWD, VPWD, ADN, (3) NM flex dc, Jars = 237'. Run in the hole with BHA #8 from 237' to 1480'. Shallow pulse test MWD at 333', 250 gpm, 980 psi. Run in the hole from 1480' to 5396'. Obtain ECD base line. Up wt. 100k. S/O wt. 90k. Rot wt. 100k. 60 rpm, 3k tq. 288 gpm, 2174 psi. Orient HS and run in the hole from 5396' to 5494'. No problem's. Directional drill under gauge hole from 5494' to 5559'. Directional drill 6-3/4" hole from 5559' to 5626'. 295 gpm, 2190 psi. Directional drillers display continually crashing which in turn causes entire MWD system to crash. Attempt to trouble shoot system. Pull out of the hole from 5626' to 5494'. Blow down top drive. Monitor well bore. Static. Trouble shoot MWD software. Service top drive. Run in the from 5494' to 5626'. No problems thru window area. Directional drill 6-3/4" Obc Li from 5626' to 6164'. Up wt. 110k. S/O wt. 95k. Rot wt. 95k. 60 rpm, tq on 4.5k. Tq off 3k. WOB 10 to 15k. 290 gpm, 2472 psi on, 2260 psi off. Mud wt. Out 9.0 ppg. Out 9.0 ppg. AST = 2.10 hrs. ART = 1.55 hrs. ADT = 3.65 hrs. Jar hrs. _ 195 Calculated ECD = 9.86 Actual ECD = 10.07 Directional drill 6-3/4" Obc L1 from 6164' to 6803'. Up wt. 115k. S/O wt. 85k. Rot wt. 95k. 60 rpm, tq on 5k. Tq off 4k. WOB 5 to 10k. 302 gpm, 2425 psi on, 2160 psi off. Calculated ECD = 9.97 Actual ECD = 10.33 Drilling with #1 mud pump. #2 mud pumps pop off inadvertently blew at 2300 psi. Remove and replace pop off valve. Change swab in #1 mud pump, #3 cly. Directional drill 6-3/4" Obc L1 from 6803' to 6964'. Up wt. 117k. S/O wt. 85k. Rot wt. 95k. 60 rpm, tq on 4.5k. Tq off 4k. WOB 5k. 302 gpm, 2560 psi on, 2390 psi off. Circulate at a reduced rate while trouble shooting MW D surface equipment. Directional drillers display continually crashing which in turn causes entire MWD system to crash. Turn power off to DD Unit, able to keep system up and running. Suspect moisture in one or more of lines coming from rig floor to MWD unit. Orientation of tools maintained between DD and MWD by utilizing hand held communication. Mobilize power cord from Schlumberger yard. Directional drill 6-3/4" Obc L1 from 6964' to 7025'. Up wt. 117k. S/O wt. 85k. Rot wt. 95k. 60 rpm, tq on 5k. Tq off 4k. WOB 10k. 308 gpm, 2595 psi on, 2470 psi off. Mud wt. In 9.1 ppg. Out 9.1 ppg. AST = 1.50 hrs. ART = 3.25 hrs. ADT = 4.25 hrs. Jar hrs. _ 199.75 Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABORS ALASKA DRILLING I Rig Name: NABORS 7ES Date ;From - To Hours ! Task Code I NPT Start: 12/29/2006 Rig Release: 3/1 /2007 Rig Number: Page 20 of 34 ~ Spud Date: 12/29/2006 End: 3/1 /2007 Phase Description of Operations 2/4/2007 23:30 - 00:00 0.50 DRILL P PROD2 2/5/2007 00:00 - 12:00 12.00 DRILL P PROD2 12:00 - 00:00 12.00 DRILL P PROD2 2/6/2007 00:00 - 12:00 12.00 DRILL P PROD2 12:00 - 00:00 12.00 DRILL P PROD2 2/7/2007 00:00 - 12:00 12.00 DRILL P PROD2 12:00 - 19:00 7.00 DRILL P PROD2 19:00 - 20:00 1.00 DRILL P PROD2 20:00 - 00:00 4.00 DRILL P PROD2 Calculated ECD = 10.07 Actual ECD = 9.75 Directional drill 6-3/4" Obc Li from 7025' to 7881'. Up wt. 123k. S/O wt. 75k. Rot wt. 98k. 60 rpm, tq on 5k. Tq off 4k. WOB 5 to 7k. 305 gpm, 2676 psi on, 2466 psi off. Mud wt. In 9.1 ppg. Out 9.1 ppg. AST = 2.88 hrs. ART = 2.23 hrs. ADT = 5.11 hrs. Jar hrs. _ 204.9 Calculated ECD = 10.41 Actual ECD = 10.56 Directional drill 6-3/4" Obc L1 from 7881' to 8796'. Up wt. 140k. S/O wt. 85k. Rot wt. 100k. 60 rpm, tq on 5.5k. Tq off 4k. WOB 5 to 7k. 302 gpm, 3100 psi on, 2900 psi off. Mud wt. In 9.0+ ppg. Out 9.0+ ppg. AST = 1.67 hrs. ART = 4.25 hrs. ADT = 5.92 hrs. Jar hrs. _ 210.8 Calculated ECD = 10.57 Actual ECD = 10.85 Directional drill 6-3/4" Obc L1 from 8796' to 9936'. Up wt. 135k. S/O wt. 85k. Rot wt. 103k. 60 rpm, tq on 6k. Tq off 5k. WOB 7k. 301 gpm, 3121 psi on, 3033 psi off. Mud wt. In 9.0+ ppg. Out 9.0+ ppg. AST = 1.38 hrs. ART = 3.35 hrs. ADT = 4.73 hrs. Jar hrs. _ 215.5 Calculated ECD = 10.40 Actual ECD = 10.80 Directional drill 6-3/4" Obc L1 from 9936' to 11274'. Up wt. 135k. S/O wt. 80k. Rot wt. 103k. 60 rpm, tq on 7k. Tq off 6k. WOB 5 to 7k. 300 gpm, 3195 psi on, 3095 psi off. Mud wt. In 9.1 ppg. Out 9.1 PPg• AST = 1.00 hrs. ART = 4.33 hrs. ADT = 5.33 hrs. Jar hrs. _ 221 Calculated ECD = 10.50 Actual ECD = 10.78 Directional drill 6-3/4" Obc L1 from 11274' to 12164'. Up wt. 160k. S/O wt. 55k. Rot wt. 100k. 60 rpm, tq on 8k. Tq off 6.5k. WOB 5 to 8k. 304 gpm, 3463 psi on, 3285 psi off. Mud wt. In 9.1 ppg. Out 9.1 PPg• AST = 2.25 hrs. ART = 2.83 hrs. ADT = 5.08 hrs. Jar hrs. _ 226 Calculated ECD = 10.60 Actual ECD = 10.90 Directional drill 6-3/4" Obc L1 from 12164' to 12730'. Up wt. 155k. S/O wt. 40k. Rot wt. 97k. 60 rpm, tq on 8k. Tq off 7k. WOB 8 to 10k. 300 gpm, 3575 psi on, 3432 psi off. Mud wt. In 9.1 Ppg. Out 9.1 PPg• AST = .93 hrs. ART = 2.75 hrs. ADT = 3.68 hrs. Jar hrs. _ 229.65 Calculated ECD = 10.69 Actual ECD = 11.43 Circulate bottoms up at 300 gpm, 3385 psi, While down linking MWD. Monitor well bore. Static. Back ream /Mad pass at 600'/ hr. from 12730 to 11828'. 300 gpm, 3410 psi. 60 rpm, 7k tq. Encountered increased tq and Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Page 21 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours Task Code NPT ~ Phase Description of Operations ! 2/7/2007 20:00 - 00:00 - 4.00 -- DRILL -_ P - _ PROD2 -__--- slight pack off at 11870'. Work area free of any futher obstructions. 2/8/2007 00:00 - 05:00 5.00 DRILL P PROD2 Back ream /Mad pass at 600'/ hr. from 11828' to 10987'. 300 gpm, 3295 psi. 60 rpm, 7k tq. Up wt. 150k. S/O wt. 75k. Rot wt. 100k. Chang swab out in #2 pump #3 cly, At 11795' 249 gpm, 2427 psi. 05:00 - 07:00 2.00 DRILL N DFAL PROD2 07:00 - 09:00 2.00 DRILL P PROD2 09:00 - 10:00 1.00 DRILL P PROD2 10:00 - 11:30 1.50 DRILL P PROD2 11:30 - 12:00 0.50 DRILL P PROD2 12:00 - 18:30 6.50 DRILL P PROD2 18:30 - 20:30 2.00 DRILL P PROD2 20:30 - 21:30 1.00 DRILL P PROD2 21:30 - 23:30 2.00 DRILL P PROD2 23:30 - 00:00 0.50 DRILL P PROD2 2/9/2007 00:00 - 06:00 6.00 DRILL P PROD2 06:00 - 09:30 3.50 DRILL P PROD2 Unable to toggle MW D tool over to real time logs. Back ream /Mad pass at 300'/ hr. from 10987' to 10796'. 291 gpm, 2945 psi. 60 rpm, 6k tq. Up wt. 140k. S/O wt. 75k. Rot wt. 100k. Back ream /Mad pass at 600'/ hr. from 10796' to 10546'. 290 gpm, 2947 psi. 60 rpm, 6k tq. Up wt. 140k. S/O wt. 80k. Rot wt. 103k. Back ream /Mad pass at 300'/ hr. from 10546' to 10346'. 290 gpm, 2877 psi. 60 rpm, 6k tq. Up wt. 140k. S/O wt. 80k. Rot wt. 110k. Back ream /Mad pass at 600'/ hr. from 10346' to 10154'. 290 gpm, 2877 psi. 60 rpm, 5k tq. Up wt. 140k. S/O wt. 83k. Rot wt. 100k. Average loss rate of 3 to 6 bbls an hour. Lost 54 bbls of LSOBM to well bore in 12 hrs. Back ream /Mad pass at 600'/ hr. from 10154' to 8097'. 300 gpm, 3090 psi. 60 rpm, 5k tq. Up wt. 140k. S/O wt. 85k. Rot wt. 100k. Back ream /Mad pass at 300'/ hr. from 8097' to 7896'. 300 gpm, 2660 psi. 60 rpm, 4k tq. Up wt. 130k. S/O wt. 85k. Rot wt. 95k. Back ream /Mad pass at 600'/ hr. from 7896' to 7647'. 300 gpm, 2600 psi. 60 rpm, 4k tq. Up wt. 120k. S/O wt. 90k. Rot wt. 92k. Back ream /Mad pass at 300'/ hr. from 7647' to 7446'. 300 gpm, 2515 psi. 60 rpm, 3.5k tq. Up wt. 115k. S/O wt. 85k. Rot wt. 95k. Back ream /Mad pass at 600'/ hr. from 7446' to 7312'. 300 gpm, 2320 psi. 60 rpm, 3.5k tq. Up wt. 115k. S/O wt. 85k. Rot wt. 95k. Average loss rate of 3 to 6 bbls an hour. Lost 55 bbls of LSOBM to well bore in 12 hrs. 109 bbls of LSOBM lost to well bore in 24 hrs. Back ream /Mad pass at 600'/ hr. from 7312' to 5896'. 300 gpm, 2320 psi. 60 rpm, 3.5k tq. Up wt. 115k. S/O wt. 85k. Rot wt. 95k. Back ream /Mad pass at 100'/ hr. from 5896' to 5660'. 60 rpm, 3.5k tq. Up wt. 110k. S/O wt. 95k. Rot wt. 98k. Printed: 3/5/2007 7:03:14 AM • • BP EXPLORATION Page 22 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date ~ From - To Hours Task Code NPT Phase Description of Operations -----_- _ 1 _ _ - 2/9/2007 ~ 06:00 - 09:30 3.50 DRILL P PROD2 Pump rate slowed from 300 gpm, 2320 psi to 230 gpm, 1450 psi. Mad passing was slowed to a 100'/hr due to ECD increasing to 12.2 ppg. 09:30 - 11:30 2.00 DRILL P PROD2 Pull out of the hole from 5660' to 5560'. Encountering 40k over pull and Slight packing off at 5560'. Work tight-area from 5560' to 5528'. Rotation and full circulation was regained. 305 gpm, 2183 psi. Up wt. 110k. S/O wt. 100k 11:30 - 12:30 1.00 DRILL P PROD2 Reciprocate pipe from 5494' to 5396' while circulating bottoms up at 305 gpm, 2154 psi. 80 rpm, 2k tq. 12:30 - 13:30 1.00 DRILL P PROD2 Cut and slip 100' of drilling tine. 13:30 - 15:30 2.00 DRILL P PROD2 Service top drive and crown section. Change burnt out lights in derrick. 15:30 - 16:30 1.00 DRILL P PROD2 Orient 17 LHS. Down linking of MWD tool worked at 5494' 16:30 - 21:00 4.50 DRILL P PROD2 Run in the hole from 5494' to 12730'. No problems. No fill on bottom. Up wt. 140k. S/O wt. 70k. 21:00 - 23:00 I 2.001 DRILL I P 23:00 - 00:00 I 1.001 DRILL I P 2/10/2007 100:00 - 01:00 I 1.001 DRILL I P 01:00 - 08:00 7.00 DRILL P 08:00 - 11:00 3.00 DRILL P 11:00 - 13:00 2.00 DRILL P 13:00 - 15:00 2.00 DRILL P 15:00 - 15:30 0.50 DRILL P 15:30 - 16:30 1.00 DRILL P 16:30 - 18:00 1.50 WHIP P 18:00-20:30 2.50 WHIP P 20:30 - 22:00 1.50 WHIP P 22:00 - 23:30 1.50 WHIP P 23:30 - 00:00 0.50 WHIP P ~ 2/11 /2007 ~ 00:00 - 00:30 ~ 0.50 (WHIP ~ P Note: Increase of 30k S/O wt. PROD2 Rotate and reciprocate pipe while circulating bottoms at 60 rpm, 5k tq. 300 gpm, 3425 psi. Pump 25 bbl 2.5 ppb over weighted sweep surface to surface. 10% increase in cuttings once weighted sweep came back to surface. Up wt 140k. S/O wt 70k. Rot wt. 105k. Mud wt In 9.0 ppg. Out 9.0 ppg. PROD2 Displace LSOBM out of well bore with SFOBM at 305 gpm, 3425 psi. 60 rpm, 5k tq. Lost 30 bbls of LSOBM in 24 hrs. PROD2 Displace LSOBM out of well bore with SFOBM at 305 gpm, 3425 psi. 60 rpm, 5k tq. Mud wt in 9.0 ppg. Out 9.0 ppg. Monitor well bore. Static. PROD2 Pull out of the hole from 12730' to 5540'. Monitor well bore. Average loss rate of 1 bbl/hr. Pump dry job. Recording Up and S/O wt every 5 stands pulled while in open hole. PROD2 Continue to pull out of the hole from 5540' to 1480'. PROD2 Lay down extra drill pipe not needed, from 1480' to 811'. PROD2 Remove nuclear source. Lay down jar. Stand back NM DC's and lay down remaining BHA. PROD2 Clear and clean rig floor. PROD2 Run in the hole with 2 stands of 4-3/4" sprial dc's and lay down the same. RUNPRD Make up Whipstock retrieval assembly. Hook, Float Sub, 1 joint 3-1/2" HWDP, Bumper Sub, Oil Jar, MWD. Orient MWD. RUNPRD Pick up (36) 4-3/4" steel drill collars. RUNPRD Shallow pulse test MWD at 1286'. Run in the hole with 4" HWDP to 2202'. RUNPRD Run in the hole with whipstock assembly to 5451'. RUNPRD Fill pipe and orient 17 deg. left of high side. Wash out slot on whipstock, 243 gpm, 1882 psi. Up wt. 135k. S/O wt. 120k. Lost 29 bbls of LSOBM in 24 hrs. RUNPRD Pick up above top of whipstock at 5528'. Slack off slowly and hook whipstock slot at 5533', set 15k down wt. to verify hook, Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Page 23 of 34 ~ Operations Summary Report Legal Well Common W Event Nam Contractor Rig Name: Date Name: ell Name: e: Name: From - To j W-204 W-204 DRILL+C NABOBS NABOBS Hours ~_ - OMPLE ALASK 7ES Task j - TE A DRI Code LING NPT -- Start I Rig Rig Phase Spud Date: 12/29/2006 : 12/29/2006 End: 3/1/2007 Release: 3/1/2007 Number: Description of Operations -- 2/11/2007 00:00 - 00:30 0.50 WHIP P RUNPRD pick up to 150k (15k over) allow oil jars to bleed down and pull to 200k. S/O and recock jar at 100k. Jared whipstock free at 210k. Mud level dropped 26' after seals were pulled free. Fill hole and monitor well bore. Static loss rate of 36 bbl/hr. 00:30 - 01:30 1.00 WHIP P RUNPRD Circulate bottoms up at 270 gpm 2341 psi. Mud wt. In 9.0 ppg. Out 9.0 ppg. Monitor well bore for 15 min. Static. 01:30 - 06:00 4.50 WHIP P RUNPRD Pump dry job. Drop 2-1/16" rabbit. Pull out of the hole from 5520' to 2200'. 06:00 - 08:00 2.00 WHIP P RUNPRD Stand 4" HWDP and 4-3/4" steel drill collars in the derrick. 08:00 - 10:30 2.50 WHIP P RUNPRD Lay down whipstock retrieval BHA. Whipstock looked good. 12 ft. from top of whipstock to well bore exit indication. 10:30 - 11:00 0.50 WHIP P RUNPRD Clear and clean rig floor. 11:00 - 11:30 0.50 WHIP P RUNPRD Service top drive. 11:30 - 15:00 3.50 WHIP N RREP RUNPRD Change out wash pipe assembly on top drive. 15:00 - 16:00 1.00 CASE P RUNPRD Rig up Nabors casing equipment to run OBc L1 4.5" liner. 16:00 - 00:00 8.00 CASE P RUNPRD Pick up 4.5" 12.6# L-80 slotted liner with bent shoe joint. Run in ', the hole 5703". Up wt. 80k. S/o wt. 75k. First attempt to exit window failed. Turn liner 1 full turn to the right and exit window. Make up torque 3,800 ft/Ibs. Run 1 4.5" x 6.125" free floating li centralizer on every full lenght joint .Record Up and S/O wt every 500'. Lost 27 bbls of SFOBM to well bore. i 2/12/2007 00:00 - 03:00 3.00 CASE P RUNPRD Run in the hole with 4.5" slotted liner from 5703' to 7184'. Make up Hook hanger and Slim Pulse MWD. i 03:00 - 04:00 1.00 CASE P RUNPRD Make up Slim Pulse MWD to Hook hanger. Run in the hole with 1 stand of HWDP to 7294'. Up wt. 90k. S/O wt 75k. 04:00 - 05:00 1.00 CASE N RREP RUNPRD Attempt to test MWD. Wash pipe on top drive leaking SFOBM from top nut. Torque upper nut on wash pipe to 6,000 ft/pds. Test wash pipe OK. 05:00 - 08:00 3.00 CASE P RUNPRD Pulse test MWD at 126 gpm, 790 psi. Good test. Run in the hole with 9 stands of HWDP and 4-3/4" drill collars from 7276' to 9105'. Up wt. 130k. S/O wt.100k. 08:00 - 11:00 3.00 CASE P RUNPRD Change out handling equipment. Run in the hole from 9105' to 12660' with 4" drill pipe. Up wt. 160k. S/O wt. 80k. 11:00 - 12:30 1.50 CASE P RUNPRD Oreint Baker Hook Hanger at 17 deg left of high side at 120 gpm 1020 psi. Up wt 170k. S/O wt. 60k. Set hook hanger at 5525'. Observered tool face to right of high side after setting hook hanger. Pick hook hanger off of bottom of window, turn liner 180 deg and run in the past hook hanger setting depth, pick up and orient hook hanger at high side and set hook hanger at 5525'. Final reading of MW D when setting was 34 deg R of highside, Shoe Depth - 12702' Solid Bent Joint - 12700' - 12658'. 45 Jts Slotted Liner - 12656' - 10844'. Swell Packer #1 - 10793' - 10773'. 8 Jts Solid Liner - 10761' - 10470'. Swell Packer #2 -10418' - 10398'. Printed: 3!5/2007 7:03:14 AM BP EXPLORATION Operations Summary Report ~9~n C`~ Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 7ES Date ~ From - To Hours ': Task ;Code NPT _- --- --- 2/12/2007 ~ 11:00 - 12:30 1.50 ~ CASE ~ P Start: 12/29/2006 Rig Release: 3/1/2007 Rig Number: Page 24 of 34 Spud Date: 12/29/2006 End: 3/1 /2007 Phase ~ Description of Operations RUNPRD 62 Jts Slotted Liner -10388 - 7865'. Swell Packer #3 - 7814' - 7794'. 8 Jts Solid Liner - 7783' - 7491'. Swell Packer #4 - 7440' - 7420'. 34 Jts Slotted Liner - 7410' - 6141'. 9 Jts Solid Liner - 5989' - 5656'. Swell Packer #5 - 5594' - 5574'. Top of Hook Hanger - 5525'. (166) 4.5" x 5.75" Free Floating Centralizers run. 12:30 - 13:00 0.50 CASE P RUNPRD Drop ball and pump down on seat. Pressure up to 3500 psi to release from hook hanger. Ball sheared at 3998 psi. 13:00 - 13:30 0.50 CASE P RUNPRD Monitor well bore. Circulate bottoms up at 250 gpm, 1337 psi. 13:30 - 16:00 2.50 CASE P RUNPRD Monitor well bore. Pump dry job. Pull out of the hole to 1921'. 16:00 - 20:00 4.00 CASE P RUNPRD Lay down (27) 4-3/4" drill collars. Stand (3) 4-3/4" drill collars and (9) HWDP in the derrick. 20:00 - 21:00 1.00 CASE P RUNPRD Lay down running tool and MWD slim pulse tool. 21:00 - 21:30 0.50 CASE P RUNPRD Clear and clean rig floor. 21:30 - 00:00 2.50 CASE N RREP RUNPRD Replace back up wrench on top drive. Lost 13 bbls of SFOBM to well bore in 24 hrs. 2/13/2007 00:00 - 01:30 1.50 CASE N RREP RUNPRD Replace back up wrench on top drive. Function test back up wrench. Ok. 01:30 - 02:30 1.00 CASE P RUNPRD Rig up Nabors casing equipment. 02:30 - 05:00 2.50 CASE P RUNPRD Pick up LEM assembly. 05:00 - 06:00 1.00 CASE P RUNPRD Run in the hole with LEM assembly to 170'. 06:00 - 09:30 3.50 CASE P RUNPRD RIH w/ 9 stands of HWDP and continue w/4" drillpipe to 5579'. MU topdrive & pump 1 bpm, 160 psi. Stage pumps up to 2 bpm, 320 psi, PU wt. 110K, SO wt 100K. 09:30 - 11:00 1.50 CASE P RUNPRD Tag Hook Hanger w/LEM muleshoe at 5524'. RIH. Wash down slowly to remove debris f/lower seal bore extension. Run seals into seal bore extension at 5631'. RIH until muleshoe is at 5641'. See LEM orient and lock in. SO 15K on Hook. PU 10K over string wt to 120K to verify collet latch in. Drop 1-3/4" Baker ball and pump to seat. Pressure to 3800 psi. Felt packer set at 2000 psi. HR running tool shear went at 2800 psi. Released f/LEM. Tested annulus to 1500 psi and held f/5 minutes indicating seals on ZXP packer properly placed and holding pressure. Pull one stand and pump dry job. Blow down top drive and lines. Top of OBc lateral #1 LEM (liner top) at 5468'. 11:00 - 14:00 3.00 CASE P RUNPRD POH w/running tools (/5468' to 1087'. 14:00 - 15:00 1.00 CASE P RUNPRD Service topdrive. PJSM w/written THA. Slip and cut 84' of drilling line. 15:00 - 15:30 0.50 CASE P RUNPRD POH to LEM HR running tool. 15:30 - 17:30 2.00 CASE P RUNPRD LD HR running tool assy and 2 3/8" inner string. 17:30 - 18:00 0.50 STWHIP P WEXIT Load Whipstock equipment in pipeshed and RU to run OBa shipstock. 18:00 - 21:30 3.50 STWHIP P WEXIT PJSM. MU Whipstoc an mi ing assy. 21:30 - 23:00 1.50 STWHIP P WEXIT PJSM. RIH w/drill collars and HWDP to 1225'. Surface test MWD 250gpm, 887 psi. 23:00 - 00:00 1.00 STWHIP P WEXIT RIH Whipstock and millimg HBA on 4" drill pipe to 2659'. 2/14/2007 00:00 - 03:30 3.50 STWHIP P WEXIT RIH f/2659'. PU wt 112K, SO wt. 100K. Orient Whipstock to 22 Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING I Rig Name: NABOBS 7ES Date 'From - To ~ Hours Task Code NPT 2/14/2007 100:00 - 03:30 I 3.501 STW H I P I P 03:30 - 03:45 I 0.251 STWHIPI P 03:45 - 05:00 I 1.251 STWHIPI P Start: 12/29/2006 Rig Release: 3/1/2007 Rig Number: Page 25 of 34 Spud Date: 12/29/2006 End: 3/1 /2007 Phase ~ Description of Operations WEXIT deg. left of high side at 5438', 30' above OBc liner top. RIH slowly and tag up on liner top at 5468'. SO 15K and see pins shear on bottom trip anchor. Pull 10K over to 122K. Anchor set. SO and see release pin shear running tool free f/Whipstock tray w/35K slacked off on pin. Top of whipstock set at 5,366' MD. WEXIT RU and test above seals to surface to 1500 psi for 5 minutes. OK. WEXIT Swap out mud system f/SFOBM to LSOBM 252 gpm, 1445 psi. 05:00 - 06:00 1.00 STWHIP P WEXIT 06:00-11:00 5.00 STWHIP N RREP WEXIT 11:00 - 19:00 I 8.001 STWHIPI P 19:00 - 20:00 I 1.001 STWHIPI P 20:00 - 21:00 I 1.001 STWHIPI P ~' 21:00 - 22:30 1.50 STWHIP P 22:30 - 00:00 1.50 STWHIP P 2/15/2007 00:00 - 01:00 1.00 STWHIP P 01:00 - 01:30 0.50 STWHIP P 01:30 - 02:00 0.50 STWHIP P 02:00 - 03:00 1.00 BOPSU P 03:00 - 11:00 8.00 BOPSU P 11:00 - 12:00 1.00 BOPSU P 12:00 - 13:00 1.00 BOPSU P 13:00 - 14:30 1.50 BOPSU N 14:30 - 17:00 2.50 DRILL P 17:00 - 19:30 2.50 DRILL P 19:30 - 20:30 1.00 DRILL P WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT RREP WEXIT WEXIT WEXIT WEXIT RU to mill window in 7 5/8" casing for OBa L-2 lateral. Repair top drive rpm limiter proximity switch. During repairs the hydraulis systen on the Top Drive was locked out and not circulating. After completing the repairs the hydraulic oil system was started and the thick cold oil blew the seals on the filter. Replace seals and filter. Mill window w/BHA #10 w/ 6-1/8" window mill, 6-5/16" OD lower watermelon window mill, flex jt., 6.75" upper watermelon window mill, float sub, 1 jt HWDP, MWD, Lub bumper sub, 6 4-3/4" drill collars, XO, 27 jts. 4" HWDP, drill pipe to surface. 252 gpm, 1375 psi, 7K WOB, 96 rpm, 4K tq. on, 3K tq. off, 115K PU, 110K SO, 100 ROT. MW = 9.0 LSOBM. Drill open hole f/5378' to 5398'. TOW = 5366' BOW= 5378' Circulate one 30 bbl Hi-Vis rabbit hair Super Sweep around and see small amount of cuttings across shakers. 269 gpm, 1557 psi, 100 rpm. Total of 185 # metal returned to surface while milling and circulating. Work 6.75" OD upper mill up and back through window w/no pumps several times w/no drag or overpull. Monitor well. POH to HWDP at 1197'. MW = 9.0 ppg. Stand back HWDP and drill collars. PJSM. LD BHA # 10. Note: Upper string mill in gage. Did not show much wear. LD and clear BHA #10 f/floor. MU jetting tool and clean out metal cuttings and debris f/stack. RU f/BOP test. BOP test 250 psi low pressure, 3500 psi high pressure. Tested w/4" test jt. and 4.5" test jt. AOGCC represented by Lou Grimaldi. Test witnessed by Lenward ToussanUChris Weaver Nabors and Lowell Anderson/Duncan Ferguson BP. RD all BOP test equipment and clear floor, blow down all lines, service top drive. Pull test plug. Set wear bushing. Repair Koomey bleed off valve. MU BHA. PJSM w/Schlumberger and all hands on handling nukes. Load nukes. RIH w/4" drillpipe to 1190'. Shallow test MWD. RIH to 4918' Fill pipe and move 11 stands HWDP in derrick f/off drillers side to drillers side. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 26 of 34 Operations Summary Report Legal Well Common W Event Nam .Contractor Rig Name: Date Name: ell Name: e: D Name: N N From - To ~ W-204 W-204 RILL+C ABOBS ABOBS Hours j 1 OMPLE ALASK 7ES Task ~ TE A DRI Code -- - LING NPT Start I Rig Rig N Phase Spud Date: 12/29/2006 : 12/29/2006 End: 3/1/2007 Release: 3/1/2007 umber: Description of Operations _- ~2/15/2007 -- 20:30 - 21:00 -- - _ 0.50 DRILL P WEXIT RIH to 5345' and perform ECD benchmark to 9.21 ppg w/out rotation. 21:00 - 22:00 1.00 DRILL N RREP WEXIT Top drive rpm not reading on display. Call rig electrician to adjust rpm proximity switch. 22:00 - 22:30 0.50 DRILL P WEXIT Continue w/ ECD benchmark. 22:30 - 00:00 1.50 DRILL P WEXIT Attempt to work bit through window as follows: TOW = 5366' BOW = 5378' Orient tool face. 5305' Confirm bit depth w/tally. 5335' Orient high side. 5366' Top of whipstock. Not felt. No weight on bit. 5380' 8K WOB. PU 15' try again. 5380' SO 10K WOB. PU and try again. 5380' 8K WOB. Turn 1/4 turn to right. No increase in torque. Same WOB. 5380' PU try again. Increase WOB to 10K, 15K, 20K. PU 20'. 5360' Establish baseline pump pressure/torque 138 gpm = 597 psi. 5 rpm 2/1 K tq. 5380' SO and tag up. Pump 78 gpm, 713 psi. 5 rpm 3K tq. Bit not turning, motor stalled. 5360' PU and orient motor to low side. 5366' Tag up on top of whipstock can't go down. 5K WOB. PU 10' orient to high side. 5374' SO to middle of tray and reorient to low side. 5380' SO to bottom of window 10K WOB. 5360' PU above tray and pump 100 gpm, rotate 5 rpm. Bit free, motor doesn't stall. 5380' SO and start pumps and attempt rotation. Bit stalls. Torque increases 1 K pressure increases 200 psi. Pick up slightly and slack back off try process again. 5380' Increase SO wt. w/out pumps and w/out rotation to 30K. No improvement. Rig team discussed situation. Baker notified. 6.75" watermelon mill w/starter mill assembly mobilized. 2/16/2007 00:00 - 03:00 3.00 DRILL N DPRB WEXIT POH to BHA 239'. MW = 9.1 ppg. 03:00 - 05:00 2.00 DRILL N DPRB WEXIT PJSM on handling nukes. Work BHA. Unload nukes. LD BHA #11. 05:00 - 07:00 2.00 DRILL N DPRB WEXIT PU window mill/cleanout BHA # 12 consisting of 6.156" window starter mill, bit sub, 6.75" upper string mill, 4.75" bumper sub, 4.75" oil jars, float sub, 3 stands 4.75" drill collars. 07:00 - 09:30 2.50 DRILL N DPRB WEXIT RIH to 5366'. 09:30 - 11:00 1.50 DRILL N DPRB WEXIT Dress window 5366' to 5378' and clean out down to 5394'. PU = 105K, SO = 98K, ROT = 100K, 253 gpm, 1011 psi, 84 rpm, 2K tq. Work mills TOW/5366' to BOW/5378' and down into OH to 5394'. Pull up above TOW and run mills through window w/no rotation and no pumps. 2K drag up and down as mills moved across whipstock tray into OH f/5366' into OH down to 5372'. 11:00 - 11:30 0.50 DRILL N DPRB WEXIT Pump dry job and blow down top drive. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 27 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date !From - To Hours Task ~ Code ( NPT Phase __~ 2/16/2007 11:30 - 14:15 2.75 DRILL N DPRB WEXIT 14:15 - 15:30 1.25 DRILL N DPRB WEXIT 15:30 - 18:30 3.00 DRILL N DPRB WEXIT 18:30 - 21:30 3.00 DRILL N 21:30 - 22:00 0.50 DRILL N Sp~,~, („'jr 22:00 - 00:00 2.00 DRILL P 2/17!2007 100:00 - 12:00 I 12.001 DRILL I P 12:00 - 00:00 I 12.001 DRILL I P 12/18/2007 100:00 - 12:00 ( 12.001 DRILL I P 12:00 - 00:00 I 12.001 DRILL I P 12/19/2007 100:00 - 12:00 I 12.001 DRILL I P 12:00 - 00:00 12.00 DRILL P DPRB WEXIT DPRB WEXIT PROD3 Description of Operations POH f/5394' to BHA at 341'. Stand back drill collars, LD milling BHA # 12. Mills showing slight wear. Check upper sting mill gage. OK. PJSM on nuke safety. PU drilling BHA # 13 w/DSX146H+GJUW rerun ser. # 109570, 1.50 deg. XP AIM motor, bypass sub, NM stabilizer, NM flex lead collar, MWD, VPWD, ADN, 3 NM Flex drill collars, hyd. jars, 80 stds 4" DP, 27 jnts. 4" HWDP, XO, 6 jts spiral 4" HWDP, XO to 4" drill pipe. Load nukes. RIH to 5305'. Orient motor and ease down through window wino trouble. See slight tick at 5378'. Drill f/5397' to 5463'. PU 105K, SO 95K, sliding, 2325 psi on, 2240 psi off, 295 gpm. ADT = 1.2 hrs f/day. AST = 1/2 hrs f/day. Total footage f/day = 66'. PROD3 Directionally drill f/5463' to 6166'. PU 110K, SO 90, ROT 100, rpm 60, 4K tq. on, 3K tq. off, 300 gpm, 2360 psi on, 2240 psi off, 4K WOB. ECDs 9.81 calculated, 10.23 actual. Backreaming each stand, surveys every 30'. Pumped 0 sweeps f/12 hrs. PROD3 Directionally drill (/6166' to 7250'. PU 108K, SO 85, ROT 90, rpm 60, 4K tq. on, 3K tq. off, 300 gpm, 2574 psi on, 2488 psi off, 5K WOB. ECDs 10.02 calculated, 10.33 actual. Backreaming each stand, surveys every 30'. Pumped 0 sweeps f/24 hrs. ADT f/24 hrs. = 13.24. ART = 6.4 hrs. AST = 6.84 Progress f/24 hrs. = 1787'. MW = 9.1 ppg. PROD3 Directionally drill f/7250' to 8217'. PU 115K, SO 93, ROT 100, rpm 60, 5K tq. on, 4K tq. off, 300 gpm, 2410 psi on, 2610 psi off, 5K WOB. ECDs 10.23 calculated, 10.45 actual. Backreaming each joint, surveys every 30'. Pumped 0 sweeps in 12 hrs. MW = 9.1 ppg. PROD3 Directionally drill f/8217' to 9076'. PU 125K, SO 90, ROT 100, rpm 60, 5K tq. on, 4K tq. off, 302 gpm, 2960 psi on, 2743 psi off, 4K WOB. ECDs 10.25 calculated, 10.31 actual. Backreaming each joint, surveys every 30'. Pumped 0 sweeps in 12 hrs. Performed top drive maintenance at connection breaks. ADT f/24 hrs. = 11.99 hrs. AST = 4.1 hrs. ART = 7.89 hrs. Progress = 1826' f/24 hrs. MW = 9.0 ppg. PROD3 Directionally drill f/9076' to 10415'. PU 130K, SO 85, ROT 105, rpm 60, 7K tq. on, 5.5K tq. off, 302 gpm, 3140 psi on, 2960 psi off, 5-8K WOB. ECDs 10.40 calculated, 10.57 actual. Backreaming each joint, surveys every 30'. Pumped 0 sweeps in 12 hrs. Performed top drive maintenance at connection breaks. PROD3 Directionally drill f/10415' to 11083'. PU 135K, SO 80, ROT 102, rpm 60, 6K tq. on, 5K tq. off, 305 gpm, 3211 psi on, 3120 psi off, 6-5K WOB. ECDs 10.37 calculated, 10.5 actual. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 28 of 34 ~ Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 7ES Date From - To ~ Hours Task Code NPT 2/19/2007 12:00 - 00:00 12.00 DRILL P 2/20/2007 100:00 - 12:00 I 12.001 DRILL I P 12:00 - 15:30 I 3.501 DRILL I P 15:30 -15:45 0.25 DRILL P 15:45 - 16:30 0.75 DRILL P 16:30 - 16:45 0.25 DRILL P 16:45 - 00:00 7.25 DRILL P 2/21/2007 100:00 - 19:00 19.001 DRILL P Spud Date: 12/29/2006 Start: 12/29/2006 End: 3/1 /2007 I Rig Release: 3/1 /2007 Rig Number: Phase Description of Operations PROD3 Backreaming each joint, surveys every 30'. Performed top drive maintenance at connection breaks. Experienced excess erratic drag at 10892' causing difficulty w/sliding. Circulated/rotated a 20 bbl., weighted, Safe Carb 250 sweep around. 60 rpm, 305 gpm. Saw large slugs of sand w/the carbonate across the shakers. Erratic drag disappeared. Began sliding w/no difficulty. ADT f/24 hrs. = 11.67 hrs. AST = 5.77 hrs. ART = 5.9 hrs. Progress = 2007' f/24 hrs. PROD3 Directionally drill f/11083' to 12452'. PU 140K, SO 67, ROT 103, rpm 60, 9K tq. on,7.5K tq. off, 300 gpm, 3260 psi on, 3160 psi off, 5K WOB. ECDs 10.53 calculated, 10.82 actual. Backreaming each joint, surveys every 30'. PROD3 Directionally drill f/12452' to 12804' and TD lateral # 2 per geos. PU 140K, SO 55, ROT 98, rpm 60, 8K tq. on, 6K tq. off, 302 gpm, 3452 psi on, 3325 psi off, 4K WOB. ECDs 10.57 calculated, 10.89 actual. Backreaming each joint, surveys every 30'. ADT f/24 hrs. = 7.24 AST = 1.78 ART = 5.46 1721 Progress f/24 hrs. = 1721' PROD3 Circulate 302 gpm, 60 rpm, reciprocating w/20' strokes, 3325 psi f/15 mins. PROD3 Downlink MWD. PROD3 Monitor well. MW = 9.0 ppg. PROD3 MADPass/backream f/12804' to 11079', 298 gpm, 2960 psi, 60 rpm, 5K tq. 600'/min. PROD3 MADPass/backream (/11079' to 5385'. Pump 300 gpm. Log packer seats w/high resolution Downlink mode as follows: 11050'-10900' 1st 60' at 150'/hr. next 90' at 300'/hr, 10650'-10500' at 300'/hr, 8000' to 7850' at 300' to 600' hr. 7450' to 7300' at 600'/hr, 6350' to 6200' at 600'/hr, 5530' to 5385' at 300'/hr. and 600'/min rest of wellbore per geos. 19:00 - 20:15 I 1.251 DRILL I P 20:15 - 20:30 I 0.251 DRILL I P 20:30 - 21:15 0.75 DRILL P 21:15 - 22:00 0.75 DRILL P 22:00 - 23:00 1.00 DRILL P 23:00 - 00:00 1.00 DRILL P 2/22/2007 00:00 - 03:00 3.00 DRILL P 03:00 - 04:00 1.00 DRILL P PROD3 POH oriented 5 deg. right of high side and wash (/5508' to 5401'. 400 psi packoff and 10K drag at 5501'. 400 psi packdoff and 10K drag at 5476'. 15K drag at 5449' wino packoff. PROD3 POH oriented 5 deg. right of high side f/5401' to 5302', bha pulled through window w/occasional overpull of 5K to 10K. PROD3 Circulate/reciprocate w/no rotation between 5305' and 5205', 305 gpm, 1996 psi, 105K UP, 95K SO. Took a large amount of shale across shakers during circulation. Circulate 341 bbls. until clean across shakers. PROD3 PJSM. Cut and slip 143' drilling line.. PROD3 Service topdrive. PROD3 Orient 11 deg. right of high side. RIH f/5305' to 5970'. 5K drag w/bha going out window w/bit at 5370', 5379' and 5419'. PROD3 RIH w/drilling BHA (/5970' to 12708'. No problems RIH. PROD3 Wash down last stand to 12,804' and CBU rotating 80 rpm, 300 gpm, 3350 psi. Nothing across shakers at bottoms up. Empty and clean pits. Load pits w/solids free MOBM. Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 29 of 34 Operations Summary Report Legal Well Common W Event Nam Contractor Rig Name: Date ; Name: ell Name: e: Name: From - To ~ W-204 W-204 DRILL+C NABOB NABOB Hours ~ OMPLE S ALASK S 7ES Task TE A DRI Code I LING NPT Start I Rig Rig Phase Spud Date: 12/29/2006 : 12/29/2006 End: 3/1/2007 Release: 3/1/2007 Number: Description of Operations 2/22/2007 04:00 - 06:00 2.00 DRILL P PROD3 Circulate clean solids free MOBM surface to surface rotating 80 rpm, 300 gpm, 3300 psi. 06:00 - 12:00 6.00 DRILL P PROD3 Monitor well. MW = 9.00 ppg. POH f/12804' to 5320'. No hole problems coming to window. No problems coming through window. 12:00 - 15:00 3.00 DRILL P PROD3 POH to BHA at 235'. 15:00 - 17:00 2.00 DRILL P PROD3 PJSM on nuke safety w/all hands, Schlumberger, toolpusher, WSL. Remove nukes. LD BHA. 17:00 - 18:00 1.00 WHIP P RUNPRD PJSM w/all hands and Baker rep. PU whipstock retrieving BHA w/whipstock retrieving tool, float sub, 1 jt. 3-1/2" HWDP, 4-3/4" Bowen LBS, 4-3/4" Bowen Oil Jars, MWD, 97.52' OAL. 18:00 - 21:00 3.00 WHIP P RUNPRD PU and RIH 36 4-3/4" drill collars, XO sub, 27 jts. 4" HWDP. 21:00 - 22:15 1.25 WHIP P RUNPRD RIH w/4" drill pipe to 5292'. 22:15 - 22:45 0.50 WHIP P RUNPRD Check parameters: 130K UP, 115K SO w/out pumps. 135K UP, 118K SO w/pumps 230 gpm, 1700 psi. Orient 160 deg. right to place retriever lug up and away f/retrieving slot in tray and wash down past top of retrieving slot, pull above slot, orient to 21 deg. left, slack off and see tool engage slot at 5371' w/15K down. PU and pull 20K over string wt. then slack 15K down, on tool. PU and pull 30K over string wt. and shear unloader. PU and pull 80K over string wt. and shear anchor. Lost 8 bbls. to the formation. PU to 5358'. 135K UP, 117K SO. 22:45 - 23:30 0.75 WHIP P RUNPRD CBU 235 gpm, 1720 psi. No metal or formation material across shakers at bottoms up. 23:30 - 00:00 0.50 WHIP P RUNPRD RU to POH. Monitor well. MW = 9.0 ppg. Pump dry job. BD top drive. 2/23/2007 00:00 - 02:00 2.00 WHIP P RUNPRD POH to BHA. Stand back collars and HWDP. MW = 9.0 ppg. 02:00 - 03:00 1.00 WHIP P RUNPRD Rack back 12 stands 4-3/4" drill pipe. 03:00 - 04:30 1.50 WHIP P RUNPRD LD whipstock fishing BHA. Whipstock tray in good condition. Evidence of good mill contact f/complete 13.0' of tray. No evidence of having milled off early. Milt ground off slight amount of metal right side edge lower third of whipstock. Bottom trip anchor slips in good condition. Function test rams. 04:30 - 06:30 2.00 CASE P RUNPRD PJSM w/Baker and casing crew. RU to RIH w/L-2 4-1/2" L-80 12.6# IBT-Mod/BTC-Mod slotted/solid production liner. 06:30 - 17:30 11.00 CASE N DPRB RUNPRD RIH to window at 5378'. Avg. IBT tq. = 3800 ft/Ib, avg. BTC tq. = 4100 ft./Ibs. PU = 82K, SO = 73K. Position pipe above window move slowly down. Exit window w/no problems. Work centralizer hanging up through window at 6280'. Work pipe and get through window. Took wt. again at 6399' and worked through window. Took wt again at 6519'. Worked pipe for 1 hour and could not get through window. Jt. # 27 at window. Consult w/town team and establish maximum slack off of 20K. Worked pipe for one hr. and could not get out window. 17:30 - 00:00 6.50 CASE N DPRB RUNPRD Consult w/town team. PJSM. MW = 9.0 ppg. POH laying down f/6519' to 2756' w/liner and Swell Packers. Place Swell Packers in cold on rack outside rig. 2/24/2007 00:00 - 02:00 2.00 CASE N DPRB RUNPRD POH f/2756' to 1137' and find centralizer on jt. 27 w/damage to vanes and slightly egged. This is centralizer that stopped progress. Find Jt. 24 centralizer egged. Flind Jt. 20 centralizer egged. Printed: 3/5/2007 7:03:14 AM • • BP EXPLORATION Page 30 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date i From - To Hours Task !Code NPT Phase Description of Operations 2/24/2007 02:00 - 03:00 1.00 CASE N DPRB RUNPRD POH and lay down bent jt. 03:00 - 03:30 0.50 CASE N DPRB RUNPRD RD liner running equipment and clear rig floor. 03:30 - 05:00 1.50 CASE N DPRB RUNPRD PU window dressing BHA # 15 w/3.5" IF bullnose, XO sub, 1 bent jt. of 4" HT-40 w/3 degree bend (10.5" of deflection at 16.75'), 6 jts. 4" HWDP, XO sub, Float Sub, NM flex collar, #1 6.75" upper window mill, #2 6.75" upper window mill, NM flex collar, MWD, 4.75" Bowen LBS, 4.75" Bowen Oil Jars, six 4.75" drill collars, XO sub, 21 jts. HWDP. 05:00 - 07:00 2.00 CASE N DPRB RUNPRD RIH to 5274'. 07:00 - 10:30 3.50 CASE N DPRB RUNPRD Orient 140 deg. right to enter motherbore below window. RIH f/5274' and tag up at bottom of ZXP extension sleeve at 5478'. Spot 130 vis pill from L-1 liner top at 5478' to window ~ 5378'. PU 115K, SO 103K. Attempt window exit w/bent jt. oriented 30, 20, 10 deg left. Tag up each time at 5478' in extension sleeve of ZXP packer on L-1 liner top. POH to 5383' below L-2 window. Pump 80 gpm, 275 psi, ROT wt. 115. PU to 5366'. Kill pumps and RIH. Tag up at 5478'. POH to 5383' and rotate at 5 rpm, tq. 2.5. PU rotating to 5376' and stall rotary. Shut down pumps. RIH and tag up at 5478'. Repeat same and tag up at 5478'. POH to 5375' and take two rnds. left hand torque w/bent jt. in mid window. RIH and tag up in L-1 liner top at 5478'. PU to 5365'. Rotate at 19 rpm and SO to 5385'. RIH and tag up at 5478'. 10:30 - 11:30 1.00 CASE N DPRB RUNPRD POH to 5366' and CBU, 230 gpm, 1400 psi. Monitor well. 11:30 - 14:00 2.50 CASE N DPRB RUNPRD PUMP dry job. POH to BHA at 1115. MW = 9.0 ppg. Consult w/town team. 14:00 - 15:30 1.50 CASE N DPRB RUNPRD LD window dress mill BHA # 15. Function test BOP. 15:30 - 17:30 2.00 CASE P RUNPRD Service rig, top drive, mobilize 3-1/2" IF jt. f/Tuboscope. PJSM w/all hands and Baker reps. Bend 3.5" IF jt. 10" deflection f/center at 15' to match Baker specifications. 17:30 - 19:00 1.50 CASE N DPRB RUNPRD PU window dressing BHA # 16 w/3.5" IF bullnose, 1 bent jt. of 3.5" IF w/10" of deflection at 15', XO sub, 6 jts. 4" HWDP, XO sub, Float Sub, NM flex collar, #1 6.75" upper window mill, #2 6.75" upper window mill, NM flex collar, MWD, 4.75" Bowen LBS, 4.75" Bowen Oil Jars, six 4.75" drill collars, XO sub, 21 ', jts. HWDP. Test MWD at 1164'. 250 gpm, 775 psi. !i 19:00 - 21:00 2.00 CASE N DPRB RUNPRD RIH to 5273'. Install blower hose. 21:00 - 21:30 0.50 CASE N DPRB RUNPRD Circulate 220 gpm, 1025 psi, 22 deg. left. UP 110K, SO 102K. SD pumps and RIH. Tag up 10' deeper than previous BHA # 15w/4.5" jt. 3.5" bullnose entered L-1 liner top to XO below ZXP at 5488'. POH to 5467' and rotate pipe 45 deg. right. Attempt to enter window. Tag up on L-1 liner top at 5488'. POH to 5467'. Rotate pipe 45 deg right, try moving down past window f/5378' to 5380' w/pumps, 112 gpm, 1625 psi. SD pump RIH. Tag up at 5488'. POH to 5365' turn on pumps 112 gpm, 1625 psi, rotate 5 rpm and RIH 5'/min through window to 5385'. SD pumps and RIH. Tag up at 5488'. POH to center of window at 5373'. Rotate very slowly w/pumps 110 gpm, 1605 psi., tq. 1.7K. Torque up to 5.6K. Trap torque and SO slowly to 5382'. SD pumps and RIH to 5495'. Exit window. 21:30 - 00:00 2.50 CASE N DPRB RUNPRD RIH and position mills across window tagging up w/lower mill at 5373'. Mill w/25 rpm, 170 gpm, 610 psi, 3.5K tq. f/5373' to 5395' in OH. POH to 5366' and ream hole w/mills f/5366' to Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Page 31 of 34 ~ Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABORS7ES Rig Number: Date I From - To Hours j Task i Code _ ~ ~ 2/24/2007 ~ 21:30 - 00:00 ~ 2.50 CASE ~~ N 2/25/2007 100:00 - 00:30 I 0.501 CASE I N 00:30 - 01:30 I 1.001 CASE I N 01:30 - 03:30 2.00 CASE N 03:30 - 04:30 1.00 CASE N 04:30 - 06:00 1.50 CASE N 06:00 --13:00 7.00 CASE P 13:00 - 14:30 1.50 CASE P 14:30 - 18:30 4.00 CASE P 18:30 - 19:30 1.00 CASE P 19:30 - 00:00 I 4.501 CASE I P 12/26/2007 100:00 - 00:30 I 0.501 CASE I P 00:30 - 02:00 I 1.501 CASE I P 02:00 - 03:30 1.50 CASE P 03:30 - 07:00 3.50 CASE P 07:00 - 08:00 1.00 TIEBAC P 08:00 - 09:30 1.50 TIEBAC P 09:30 - 10:00 0.50 TIEBAC P 10:00 - 11:30 1.50 TIEBAC P 11:30 - 13:30 2.00 TIEBAC P 13:30 - 14:00 0.50 TIEBAC P NPT Phase Description of Operations DPRB RUNPRD 5395'. After reaming attempt to RIH and tag up hard at 5648'. Had trouble finding hole. Work through problem area w/pumps 120 gpm, 1650 psi to 5654' (8' deeper than bullnose penetrated during reaming process). DPRB RUNPRD POH f/5654' in L-2 OH to 5365' above window. Orient w/MWD to low side w/bent jt. RIH washing down. Tag up at 5488' on L-1 liner top. DPRB RUNPRD PU to 5486' and circulate 20 bbl. Hi-Vis sweep around, 220 gpm, 1620 psi. No cuttings or junk returned across shakers. DPRB RUNPRD POH f/5486' to BHA #16 at 1115'. MW = 9.0 DPRB RUNPRD LD BHA #16. Function test rams. Clear floor. DPRB RUNPRD PJSM w/service hands, crew, WSL. RU to RIH w/4.5" 12.60# BTC-M/IBT-M, L-80, L-2 production liner. RUNPRD RIH past window and tag up at L-1 liner top at 5485'. RUNPRD POH above liner top to 5360'. Orient 90 deg. further to right and attempt to enter window. RIH and tag up at 5485'. POH above liner top to 5360' and orient another 90 deg. to right. RIH and tag up at 5485'. POH above liner top to 5360' and orient 90 deg. right. SO and enter L-2 window successfully. RUNPRD RIH (/5366' to 7366'. No problems f/Hydroform centralizers. RUNPRD MU space out pups. RU MWD equipment. MU HOOK Hanger Assy. PU 85K, SO 73K. RUNPRD RD casing running equipment. RIH w/9 stands HWDP. Shallow test MW D at 8212', 120 gpm, 900 psi. Cont. RIH w/12 stands 4.75" drill collars. RIH w/drill pipe to 12288' w/ shoe. PU 155K, SO 95K. MW = 9.0 ppg. RUNPRD RIH and orient HOOK Hanger w/MWD19 deg. left w/shoe at 12650/HOOK at 5270'. 127 gpm, 1146 psi. RUNPRD RIH w/shoe to 12758'/HOOK to 5378' and see HOOK take wt. SO 30K on HOOK. PU and HOOK came free w/157K UP. POH to 5349'. PU 5' pup and use MWD to orient HOOK 160 deg. RIH into OH w/HOOK past landing point in window to 5383'. UP 157K, SO 83K. POH to 5349'. Orient HOOK to 28 deg. left. RIH and see HOOK take wt. at 5378'. Land HOOK Hanger and SO 35K. Drop 29/32" ball and circulate ball down 122 gpm, 1035 psi. Pressure up on HRD HOOK Hanger running tool to 3250 and see ball seat shear out early. PU and attempt to come free of HOOK w/running tool to 130K and liner not released. SO 85K on HOOK. PU and see running tool come free. UP wt 132K. RUNPRD POH to 5300' and CBU. 140 gpm, 385 psi. MW = 9.0. RUNPRD POH. Rack back HWDP. LD MWD and HOOK Hanger running tool. Function BOPs. Clear rig floor. OTHCMP RU to run 4.5" LEM assembly w/2-3/8" innerstring. OTHCMP MU LEM assy. to 2-3/8" innerstring. OTHCMP RD LEM/Innerstring running equipment and clear floor. OTHCMP PU and RIH w/9 stds. of 4" HWDP and 12 stds. of 4.75" drill collars to 2886'. OTHCMP RIH f/2886' U5448'. PU 132K, SO 118K. OTHCMP Wash down f/5448' past the L-1 liner top at 5488' and down into the PBR barrel to 5498'. Latch LEM in to collet profile in Printed: 3/5/2007 7:03:14 AM • BP EXPLORATION Page 32 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Spud Date: 12/29/2006 Event Name: DRILL+COMPLETE Start: 12/29/2006 End: 3/1/2007 Contractor Name: NABOBS ALASKA DRILLING I Rig Release: 3/1/2007 Rig Name: NABOBS 7ES Rig Number: Date From - To Hours i Task Code NPT Phase ___ i_ 2/26/2007 ~ 13:30 - 14:00 ~ 0.50 TIEBAC P OTHCMP 14:00 - 15:00 I 1.001 TIEBAC I P I I OTHCMP 15:00 - 17:30 I 2.501 TIEBAC I P I I OTHCMP 17:30 - 00:00 ~ 6.50 ~ TIEBAC ~ P ~ ~ OTHCMP 2/27!2007 100:00 - 02:00 I 2.001 TIEBAC I P f I OTHCMP 02:00 - 04:00 2.00 TIEBAC P OTHCMP 04:00 - 05:00 1.00 TIEBAC P OTHCMP 05:00 - 08:30 3.50 TIEBAC P OTHCMP 08:30 - 09:30 1.00 TIEBAC P OTHCMP 09:30 - 10:30 1.00 TIEBAC P OTHCMP 10:30 - 11:30 1.00 TIEBAC P OTHCMP 11:30 - 14:30 3.00 TIEBAC P OTHCMP 14:30 - 15:15 I 0.751 RUNCON'~ I I RUNCMP 15:15 - 19:00 I 3.751 RUNCON9P I I RUNCMP 19:00 - 21:00 I 2.001 RUNCOMP I I RUNCMP Description of Operations HOOK Hanger. SO 30K, PU to 135K to confirm latchup. PU 150K and see collet snap free. SO to 135K to allow collet to re-engage the Hook hanger profile. Circulate Baker 1.75" ball to seat. 84 gpm, 350 psi. Ball seated at 500 psi. Increase pressure t/2500 psi to set ZXP liner top packer w/pusher tool. Bring pressure up to 4000 psi to release HRD running tool. PU and tool free f/LEM. Line up pumps to kill line and pressure up to 1500 psi w/47 strokes and test liner top packer for 5 minutes. OK. Bleed pressure to 0 psi. PU 8' to expose dogs on rotating dog sub above ZXP extension sleeve. Rotate 10 rpms and slowly SO 45K to ensure ZXP packer set. Displace SFMOBM OOH w/9.0 ppg brine as follows: Pump 25 bbl. LVT 126 gpm, 420 psi. Pump 25 bbl. Hi-Vis spacer 9.0 ppg, 84 gpm, 390 psi. Pump 50 bbl. 9.0 ppg brine w/Safe Surf O surfactant, 231 gpm, 680 psi. Pump 25 bbl. HI Vis 9.0 ppg spacer, 105 gpm, 260 psi. Circulate 365 bbls 9.0 ppg brine, 350 gpm, 2100 psi. Monitor well. Static. POH laying down drill pipe f/5543' and LD 30 jts of 4.75" drill collars. POH to liner running tools. Make service breaks. Break out 4 2-3/8" EU jts from innerstring and LD all LEM running equipment. Clear floor. PJSM. RIH w/drill pipe f/derrick to 4764'. Pump 20 bbl Safe-Surf-O sweep to surface 450 gpm, 1240 psi. Monitor well -static. MW in 9.0 ppg, MW out 9.0 ppg. B/D Topdrive. POH laying down 135 joints of 4" drill pipe. PJSM. RIH w/drill pipe f/derrick to 4381'. Pump 20 bbl Safe-Surf-O sweep to surface. Clean MOBM out of pipe racks. B/D topdrive. Monitor well -static, MW in 9.0 ppg, MW out 9.0 ppg. Cut and Slip 104' of drilling line. Inspect draworks. POH laying down 136 joints of 4" drill pipe, 9 joints HW DP, 6 joints 4 3/4" DC. -Clear rig floor of excess tools and equipment -clean and ready floor to run 4 1/2" completion tubing -Pull wear ring -Make Dummy run with Hanger -landed at 24.3' -P/U Power tong and running equipment -RU I-Wire spool & sheaves PJSM on running completion with NAD drilling crew and Toolpusher, Service Hands, BP WSL. MU &RIH w/ completion string: 4.5" half muleshoe pup w/ 5.25" no-go fluted stop collar 6' up. 4.5" TCII HES "X" Nipple 3.813" ID 4.5" TCII HES "X" Nipple 3.813" ID w/ RHC plug 7.625" x 4.5" Baker Premier Packer Phoenix CST Jet Pump Gauge 4.5" 13Cr HES CMD Sliding Sleeve 4.5" Phoenix Discharge Pressure Sensor. 21:00 - 00:00 3.00 RUNCOI~IP RUNCMP ContinueeR H wl/ 4.5' VamTop completion stnngpo 1r,315'Imd Printed: 3/5/2007 7:03:14 AM • • BP EXPLORATION Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABORS ALASKA DRILLING I Rig Name: NABORS 7ES Date From - To ~ Hours ~ Task Code NPT - - - ~- 2/27/2007 21:00 - 00:00 3.00 RUNCO 2/28/2007 00:00 - 07:30 7.50 RUNCO 07:30 - 09:00 I 1.50 09:00 - 10:30 1.50 RU 10:30 - 11:00 0.50 RU 11:00 - 13:00 ( 2.001 RU 13:00 - 15:00 ~ 2.00 ~ RU Start: 12/29/2006 Rig Release: 3/1/2007 Rig Number: Phase RUNCMP RUNCMP Page 33 of 34 Spud Date: 12/29/2006 End: 3/1 /2007 Description of Operations testing I-Wire integrity every 1000'. Torque connections to 4440 ft-Ibs. Used Jet Lube Seal Guard Continue running completion from 1,315' to 5,338' md. Testing I-Wire every 1,000'. Torque turned all connections to 4440 ft-Ibs optimum torque. Utilized Jet Lube Seal Guard on threads. Baker locked all connections below packer. Ran total of 120 jts, 5010.5' 4.5" 12.6# 13Cr80 Vam Top tubing joints. 69 - I-Wire Full Clamps 8 - I-Wire Half Clamps Half mule shoe @ 5341.0' (4 ft below base of tieback recepticle) Tops: 4.5" TCII HES "X" Nipple 3.813" ID @ 5313' 4.5" TCII HES "X" Nipple 3.813" ID w/ RHC plug @ 5292' 7.625" x 4.5" Baker Premier Packer @ 5265' Phoenix CST Jet Pump Gauge @ 5243' 4.5" 13Cr HES CMD Sliding Sleeve @ 5221' 4.5" Phoenix Discharge Pressure Sensor @ 5211' GLM #1 - 4.5" 1" KBG-2, 9Cr, w/ DCK-2 Shear & BEK latch @ 5102'. GLM #2 - 4.5" 1" KBG-2, 9Cr, w/ RD Dummy, SBK-2C latch @ 4865' GLM #3 - 4.5" 1" KBG-2, 9Cr, w/ RD Dummy, SBK-2C latch @ 3509' GLM #4 - 4.5" 1" KBG-2, 9Cr, w/ RD Dummy, SBK-2C latch @ 2519' 4.5" TCII HES "X" Nipple 3.813" ID @ 2,205 RUNCMP -RIH tag NO GO @ 5,337' no-go depth Space out tubing, 3 ea , 3.80' , 9.90', & 19.73', 4.5" 12.6# 13Cr80 Vam Top tubing space out pups under top joint of tubing. MU FMC Tubing Hanger (1 ft of Blast Rings installed below hanger on pup jt with 4.5" TCII lifting threads). RUNCMP Terminate I-Wire @ Hanger RUNCMP Land Tubing @ 5,341' w/78k PUW & 78k SOW Run in Lock Down Screws and TO to 450 ft/Ibs, Gland Nuts to 350 ft/Ibs. Back out landing joint for reverse circulation. RUNCMP PJSM, Rig to reverse circ. Pump 225 bbls total of 9.0 brine @ 3 bpm / 110 psi Fluid sequence was: 80 bbls of clean 9.0 ppg brine followed with 85 bbls of corrision inhibtor treated 9.0 brine followed with 60 bbls of clean 9.0 brine RUNCMP MU Landing joint. Drop ball/rod assembly. Back out and lay down landing jt. Close blind rams and set the packer with 4,000 psi and hold for 30 min to test tubing. Bleed tubing pressure slowly to 2500 psi and then pressure annulus to 3500 psi and hold for 30 minute test. Bleed off pressure in annulus and then tubing. Re-pressure annulus to shear DCK valve (sheared at Printed: 3/5/2007 7:03:14 AM BP EXPLORATION Page 34 of 34 Operations Summary Report Legal Well Name: W-204 Common Well Name: W-204 Event Name: DRILL+COMPLETE Contractor Name: NABOBS ALASKA DRILLING Rig Name: NABOBS 7ES Date From - To i Hours Task Code NPT 2/28/2007 13:00 - 15:00 2.00 BUNCO 15:00 - 16:00 I 1.00 16:00 - 18:00 I 2.001 BOPSUR P 18:00 - 21:00 3.00 BOPSUF~ P 21:00 - 00:00 3.00 WHSUR P 3/1/2007 00:00 - 01:00 1.00 WHSUR 01:00 - 02:00 1.00 WHSUR 02:00 - 04:00 2.00 WHSUR 04:00 - 04:45 0.75 WHSUR 04:45 - 06:00 1.25 WHSUR 06:00 - 09:00 ~ 3.00 WHSUR Spud Date: 12/29/2006 Start: 12/29/2006 End: 3/1 /2007 Rig Release: 3/1/2007 Rig Number: Phase ~ Description of Operations RUNCMP 2500 psi), Pump both ways to verify shear, 2 bbls down annulus @ 21 spm / 200 psi, pump 2 bbls @ 21 spm / 200 psi down the tubing. RUNCMP FMC dry rod TWC, test from below to 1,000 psi f/5 min. B/D lines. RUNCMP Thouroghly clean Derrick, rig Floor, rig floor drain system and drip pan, cellar area and mud pits of all oil based mud prior to nipple down. -Rig down all tubing running equipment -Flush and blow out all mud lines RUNCMP PJSM. R/D drilling nipple, Remove blind/shear rams, N/D BOP RUNCMP Nipple up adapter flange, terminate I-wire and test. Test adapter flange to 5,000 psi, nipple up and tree. RUNCMP Continue NU & Test tree to 5,000 psi. -Good. RUNCMP R/U DSM Lubricator pull TWC, R/D lubricator. RUNCMP R/U Little Red, test lines to, 3,000 psi. Freeze protect tubing and annulus to 2,200' with 91 bbls diesel heated to 70 deg. RUNCMP Allow diesel to U-tube. RUNCMP R/U DSM Lubricator and install BPV, test from below to 1,000 psi. Install VR plugs in tubing annulus valve outlets. Clean cellar, remove secondary annulus valves. RUNCMP Secure cellar. Offload brine, clean pits, clean out cuttings tank. Secure topdrive to rig floorbrdle up blocks. L/D cattle chute. Release Rig @ 0900 hrs 3/1/2007 Printed: 3/5/2007 7:03:14 AM by .~ ~, ,~~~''~~~~~~ Sehlumaer~er ~~,t~~~ W-204 Survey Report Report Date: 30-Jan•07 Survey /DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 1.550° Field: Prudhoe Bay Unit - WOA Vertical Section Origin: N 0.000 ft, E 0.000 fl Structure /Slot: W-PAD / W-204 ND Reference Datum: Rotary Table Well: W-204 ND Reference Elevation: 81.52 ft relative to MSL Borehole: W-204 Sea Bed /Ground Level Elevation: 52.60 tt relative to MSL UWI/API#: 50292333300 Magnetic Declination: 23.898° Survey Name /Date: W-204 /January 30, 2007 Total Field Strength: 57636.968 nT Tort /AHD / DDI / ERD ratio: 313.199° / 8466.16 ft / 6.815 / 1.649 Magnetic Dip: 80.886° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: January 05, 2007 Location LaUlong: N 70.29921663, W 149.09253499 Magnetic Declination Model: BGGM 2006 Location Grid N/E Y/X: N 5959836.120 ftUS, E 612049.120 ftUS North Reference: True North Grid Convergence Angle: +0.85435553° Total Corr Mag North -> True North: +23.898° Grid Scale Factor: 0.99991426 Local Coordinates Referenced To: Well Head u Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing EasUng Latitude Longitude Depth Section Departure n de de n n n n n n n de 100 n nUS nUS H I t U.UU V.UU U.UU -tfl .5L U.UU U.VV U.UU U.UV U.UV U.UU U.UU b`Jbyt53ti.7'L 611U4y.1L IV /U.'Lyy"Ll libJ W 14y.UyLb;34yy GYD CT DMS 100.00 0.34 149.95 18.48 100.00 -0.25 0.30 0.30 -0.26 0.15 0.34 5959835.87 612049.27 N 70.29921592 W 149.09253378 169.00 0.40 143.89 87.48 169.00 -0.62 0.74 0.74 -0.63 0.39 0.10 5959835.50 612049.52 N 70.29921491 W 149.09253181 200.00 0.69 151.96 118.48 200.00 -0.87 1.04 1.04 -0.88 0.54 0.97 5959835.25 612049.68 N 70.29921422 W 149.09253058 258.00 0.85 159.49 176.47 257.99 -1.57 1.81 1.81 -1.59 0.86 0.33 5959834.54 612050.00 N 70.29921228 W 149.09252803 300.00 0.77 147.72 218.47 299.99 -2.09 2.41 2.40 -2.12 1.12 0.44 5959834.01 612050.27 N 70.29921083 W 149.09252592 400.00 0.98 146.00 318.46 399.98 -3.35 3.93 3.92 -3.40 1.96 0.21 5959832.75 612051.13 N 70.29920734 W 149.09251915 500.00 0.83 147.45 418.44 499.96 -4.64 5.51 5.50 -4.72 2.82 0.15 5959831.44 612052.01 N 70.29920373 W 149.09251212 600.00 0.99 142.21 518.43 599.95 -5.91 7.10 7.08 -6.01 3.74 0.18 5959830.16 612052.95 N 70.29920020 W 149.09250468 700.00 0.83 150.26 618.42 699.94 -7.20 8.69 8.67 -7.32 4.63 0.20 5959828.87 612053.86 N 70.29919662 W 149.09249748 Last GYD CT DMS 797.00 0.24 143.69 715.41 796.93 -7.96 9.59 9.57 -8.10 5.10 0.61 5959828.10 612054.34 N 70.29919450 W 149.09249368 MWD+IFR+MS 922.98 0.37 318.09 841.39 922.91 -7.87 9.94 9.43 -8.01 4.99 0.48 5959828.19 612054.22 N 70.29919475 W 149.09 1018.61 0.79 323.25 937.02 1018.54 -7.13 10.91 8.47 -7.25 4.38 0.44 5959828.94 612053.61 2 N 70.29919682 W 149.092 1114.01 0.73 329.39 1032.41 1113.93 -6.10 12.18 7.21 -6.20 3.68 0.11 5959829.98 612052.89 N 70.29919969 W 149.09250 17 1210.23 0.90 353.85 1128.62 1210.14 -4.83 13.52 5.92 -4.92 3.29 0.40 5959831.25 612052.48 N 70.29920318 W 149.09250836 1303.82 1.01 342.17 1222.20 1303.72 -3.32 15.08 4.51 -3.40 2.96 0.24 5959832.76 612052.13 N 70.29920732 W 149.09251104 1399.07 1.25 356.69 1317.43 1398.95 -1.50 16.95 3.07 -1.57 2.64 0.39 5959834.59 612051.78 N 70.29921234 W 149.09251361 1495.44 1.09 355.76 1413.78 1495.30 0.46 18.91 2.54 0.40 2.51 0.17 5959836.55 612051.63 N 70.29921771 W 149.09251465 1592.28 1.20 356.89 1510.60 1592.12 2.39 20.85 .3.33 2.33 2.39 0.12 5959838.48 612051.47 N 70.29922298 W 149.09251564 1687.44 0.79 330.62 1605.74 1687.26 3.95 22.47 4.38 3.89 2.01 0.63 5959840.04 612051.07 N 70.29922726 W 149.09251869 1781.85 0.83 352.86 1700.15 1781.67 5.18 23.79 5.38. 5.14 1.61 0.33 5959841.28 612050.65 N 70.29923066 W 149.09252196 1877.80 1.13 2.11 1796.08 1877.60 6.81 25.43 6.95 6.77 1.56 0.35 5959842.92 612050.58 N 70.29923513 W 149.09252238 1973.78 0.96 2.84 1892.05 1973.57 8.56 27.18 8.68 8.52 1.63 0.18 5959844.67 612050.62 N 70.29923991 W 149.09252178 SurveyEditor Ver SP 2.1 Bld( doc4Ox_1OO) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM .Page 1 of 8 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure tt de de tt n n tt tt n n de 100 ft itUS ftUS 1U/U.IU 1.U4 ;i44.yL lytStf.35 GUfiy.tf/ lU.Ll "Lt3.tSb lU.L/ lU.l/ 1.44 U.:3:3 by5`Jtf4Ei.;S1 tilLV5U.41 IV /V.Ly`J'L444L W 14y.U`JL5L;SLy 2165.30 0.84 345.88 2083.54 2165.06 11.71 30.41 11.73 11.68 1.05 0.21 5959847.82 612049.99 N 70.29924854 W 149.09252649 2261.77 0.83 345.85 2180.00 2261.52 13.06 31.81 13.07 13.05 0.71 0.01 5959849.17 612049.63 N 70.29925227 W 149.09252927 2357.09 2.40 32.53 2275.28 2356.80 15.44 34.38 15.48 15.40 1.61 2.02 5959851.54 612050.50 N 70.29925869 W 149.09252195 2452.78 4.50 42.73 2370.79 2452.31 19.98 40.13 20.53 19.85 5.24 2.28 5959856.04 612054.06 N 70.29927084 W 149.09249259 2547.41 6.89 52.37 2464.95 2546.47 26.36 49.50 28.78 26.04 12.25 2.71 5959862.34 612060.98 N 70.29928776 W 149.09243578 2643.42 9.03 49.85 2560.03 2641.55 35.01 62.79 41.16 34.42 22.57 2.26 5959870.86 612071.17 N 70.29931064 W 149.09235221 2737.28 11.06 47.21 2652.45 2733.97 46.21 79.16 57.12 45.28 34.81 2.22 5959881.91 612083.25 N 70.29934033 W 149.09225310 2833.00 11.65 39.14 2746.30 2827.82 60.28 97.97 75.85 59.02 47.65 1.77 5959895.83 612095.88 N 70.29937785 W 149.09214914 2928.85 11.95 38.20 2840.12 2921.64 75.91 117.57 95.45 74.32 59.89 0.37 5959911.32 612107.89 N 70.29941966 W 149.09204997 3024.05 12.13 38.62 2933.23 3014.75 91.80 137.43 115.31 89.88 72.23 0.21 5959927.06 612120.00 N 70.29946217 W 149.09195006 3119.93 12.90 38.76 3026.83 3108.35 108.36 158.21 136.08 106.10 85.22 0.80 5959943.47 612132.74 N 70.29950647 W 149.09184 3215.85 14.63 39.24 3119.99 3201.51 126.48 181.03 158.91 123.83 99.59 1.81 5959961.41 612146.84 N 70.29955491 W 149.09172 3288.00 15.06 39.22 3189.73 3271.25 141.11 199.52 177.39 138.15 111.28 0.60 5959975.90 612158.32 N 70.29959403 W 149.09163387 3348.85 14.91 40.15 3248.51 3330.03 153.48 215.25 193.12 150.26 121.32 0.47 5959988.15 612168.18 N 70.29962711 W 149.09155252 3443.74 14.78 40.00 3340.24 3421.76 172.50 239.56 217.43 168.86 136.98 0.14 5960006.99 612183.55 N 70.29967793 W 149.09142577 3538.42 14.72 39.49 3431.80 3513.32 191.45 263.67 241.53 187.39 152.39 0.15 5960025.75 612198.68 N 70.29972856 W 149.09130096 3635.18 14.59 40.18 3525.41 3606.93 210.66 288.15 266.01 206.19 168.07 0.22 5960044.78 612214.08 N 70.29977992 W 149.09117397 3730.28 14.66 40.00 3617.43 3698.95 229.44 312.16 290.02 224.56 183.53 0.09 5960063.37 612229.27 N 70.29983010 W 149.09104875 3827.95 14.84 39.73 3711.88 3793.40 248.95 337.03 314.89 243.65 199.47 0.20 5960082.69 612244.92 N 70.29988225 W 149.09091967 3922.15 15.04 40.21 3802.89 3884.41 267.98 361.31 339.17 262.26 215.07 0.25 5960101.53 612260.24 N 70.29993309 W 149.09079333 4019.84 18.04 36.19 3896.53 3978.05 290.33 389.11 366.95 284.15 232.19 3.29 5960123.68 612277.03 N 70.29999290 W 149.09065469 4116.03 20.06 31.99 3987.46 4068.98 316.81 420.49 398.21 310.17 249.73 2.54 5960149.95 612294.17 N 70.30006397 W 149.09051268 4211.01 24.15 26.12 4075.45 4156.97 348.54 456.20 433.40 341.45 266.92 4.89 5960181.48 612310.90 N 70.30014942 1N 149.09037344 4306.19 26.17 20.20 4161.61 4243.13 386.15 496.63 472.56 378.64 282.74 3.39 5960218.90 612326.16 N 70.30025102 W 149.09024529 4401.96 28.84 12.94 4246.57 4328.09 428.82 540.81 514.18 420.99 295.21 4.47 5960261.43 612338.00 N 70.30036672 W 149.09014429 4497.91 32.29 10.05 4329.18 4410.70 476.87 589.59 559.21 468.79 304.87 3.91 5960309.37 612346.94 N 70.30049732 W 149.09006606 4592.34 35.80 6.99 4407.42 4488.94 529.33 642.44 607.66 521.06 312.64 4.14 5960361.74 612353.93 N 70.30064011 W 149.09000315 4688.49 39.68 4.99 4483.44 4564.96 587.99 701.27 661.44 579.58 318.73 4.23 5960420.34 612359.15 N 70.30079998 W 149.08995377 4784.39 43.38 3.68 4555.22 4636.74 651.48 764.84 719.77 642.97 323.51 3.96 5960483.78 612362.98 N 70.30097315 W 149.089 4880.69 46.09 3.09 4623.62 4705.14 719.22 832.61 782.46 710.62 327.51 2.85 5960551.48 612365.96 N 70.30115797 W 149.089 4973.34 50.11 2.26 4685.48 4767.00 788.15 901.56 846.75 779.49 330.71 4.39 5960620.39 612368.14 N 70.30134612 W 149.08985673 5074.06 54.17 1.15 4747.29 4828.81 867.65 981.06 921.27 858.96 333.05 4.12 5960699.88 612369.30 N 70.30156322 W 149.08983772 5163.32 56.40 357.44 4798.13 4879.65 940.94 1054.42 989.69 932.30 332.12 4.23 5960773.19 612367.27 N 70.30176358 W 149.08984526 5258.85 60.10 354.88 4848.40 4929.92 1021.79 1135.64 1064.67 1013.32 326.64 4.49 5960854.11 612360.59 N 70.30198493 W 149.08988957 5356.06 63.96 354.61 4893.98 4975.50 1107.02 1221.48 1144.11 1098.80 318.78 3.98 5960939.46 612351.45 N 70.30221845 W 149.08995324 5452.19 67.83 355.86 4933.24 5014.76 1194.22 1309.21 1226.45 1186.23 311.50 4.20 5961026.76 612342.88 N 70.30245729 W 149.09001212 5547.56 70.57 353.31 4967.10 5048.62 1282.70 1398.35 1310.49 1274.97 303.07 3.81 5961115.35 612333.12 N 70.30269972 W 149.09008036 5644.19 74.80 352.64 4995.86 5077.38 1373.89 1490.58 1397.31 1366.50 291.79 4.43 5961206.70 612320.48 N 70.30294979 W 149.09017174 5740.37 78.60 352.06 5017.98 5099.50 1466.27 1584.16 1485.74. 1459.25 279.33 3.99 5961299.25 612306.63 N 70.30320317 W 149.09027264 5784.72 79.18 352.27 5026.52 5108.04 1509.21 1627.68 1527.04 1502.36 273.39 1.39 5961342.26 612300.06 N 70.30332095 W 149.09032068 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28!200710:56 AM Page 2 of 8 s Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure tt de de tt tt tt n n ft ft de 100 ft ttUS ttUS St3S1.ly /y.l/ :ibl.:ib bU:iy.'LU 51LU./'L lb/4.b'L lE~y~.y5 15`JU.UL lbri/.yti 'Lb:S.yb 1.:i4 byb14U/./U f71L'Lify.b4 N /U.:SU:ibUUlb W 14y.U`JU:iy/1L 5884.77 80.91 353.43 5044.83 5126.35 1606.20 1726.04 1620.70 1599.76 259.71 8.25 5961439.43 612284.92 N 70.30358703 W 149.09043151 5915.90 83.81 356.83 5048.97 5130.49 1636.85 1756.89 1650.64 1630.49 257.09 14.28 5961470.12 612281.85 N 70.30367100 W 149.09045269 5947.89 87.60 359.85 5051.37 5132.89 1668.69 1788.78 1681.99 1662.37 256.17 15.13 5961501.98 612280.45 N 70.30375809 W 149.09046014 5979.87 90.41 1.05 5051.92 5133.44 1700.66 1820.76 1713.64 1694.34 256.42 9.55 5961533.95 612280.23 N 70.30384543 W 149.09045810 6011.05 90.24 0.95 5051.75 5133.27 1731.84 1851.93 1744.55 1725.52 256.96 0.63 5961565.12 612280.31 N 70.30393059 W 149.09045368 6043.52 90.07 0.59 5051.66 5133.18 1764.30 1884.40 1776.73 1757.98 257.40 1.23 5961597.59 612280.26 N 70.30401929 W 149.09045014 6075.77 91.13 0.10 5051.32 5132.84 1796.54 1916.65 1808.67 1790.23 257.59 3.62 5961629.84 612279.97 N 70.30410739 W 149.09044856 6106.71 91.48 359.56 5050.62 5132.14 1827.46 1947.58 1839.28 1821.16 257.50 2.08 5961660.76 612279.42 N 70.30419189 W 149.09044929 6139.23 91.27 359.59 5049.84 5131.36 1859.95 1980.09 1871.44 1853.67 257.26 0.65 5961693.26 612278.69 N 70.30428070 W 149.09045124 6171.34 91.41 357.82 5049.08 5130.60 1892.01 2012.20 1903.13 1885.76 256.54 5.53 5961725.33 612277.49 N 70.30436837 W 149.09045710 6202.66 91.41 356.13 5048.31 5129.83 1923.22 2043.51 1933.90 1917.03 254.88 5.39 5961756.57 612275.37 N 70.30445379 W 149.0904 6234.10 91.24 356.09 5047.59 5129.11 1954.51 2074.94 1964.71 1948.39 252.75 0.56 5961787.89 612272.77 N 70.30453946 W 149.09048 6266.66 91.41 356.33 5046.83 5128.35 1986.92 2107.49 1996.66 1980.87 250.60 0.90 5961820.33 612270.14 N 70.30462820 W 149.09050516 6298.49 91.31 356.34 5046.08 5127.60 2018.61 2139.31 2027.92 2012.63 248.57 0.32 5961852.05 612267.63 N 70.30471495 W 149.09052163 6329.78 91.07 356.33 5045.43 5126.95 2049.77 2170.59 2058.66 2043.84 246.57 0.77 5961883.23 612265.16 N 70.30480024 W 149.09053782 6362.39 90.93 356.87 5044.86 5126.38 2082.25 2203.20 2090.75 2076.39 244.63 1.71 5961915.75 612262.75 N 70.30488916 W 149.09055347 6393.57 90.72 356.14 5044.41 5125.93 2113.30 2234.38 2121.44 2107.51 242.73 2.44 5961946.83 612260.38 N 70.30497417 W 149.09056886 6425.65 91.20 356.67 5043.87 5125.39 2145.25 2266.45 2153.02 2139.52 240.72 2.23 5961978.81 612257.89 N 70.30506162 W 149.09058514 6458.44 91.34 357.00 5043.15 5124.67 2177.92 2299.23 2185.35 2172.25 238.91 1.09 5962011.50 612255.60 N 70.30515105 W 149.09059979 6490.31 91.31 356.65 5042.41 5123.93 2209.68 2331.09 2216.79 2204.07 237.15 1.10 5962043.28 612253.36 N 70.30523796 W 149.09061408 6521.49 91.31 355.96 5041.70 5123.22 2240.72 2362.27 2247.51 2235.17 235.14 2.21 5962074.36 612250.89 N 70.30532294 W 149.09063034 6553.53 91.41 356.79 5040.94 5122.46 2272.62 2394.30 2279.09 2267.14 233.11 2.61 5962106.28 612248.38 N 70.30541027 W 149.09064674 6585.89 91.34 356.16 5040.16 5121.68 2304.84 2426.65 2311.02 2299.43 231.12 1.96 5962138.54 612245.91 N 70.30549848 W 149.09066284 6616.89 90.82 355.65 5039.58 5121.10 2335.68 2457.64 2341.56 2330.35 228.91 2.35 5962169.41 612243.24 N 70.30558294 W 149.09068076 6649.25 90.45 355.03 5039.22 5120.74 2367.85 2490.00 2373.41 2362.60 226.28 2.23 5962201.62 612240.13 N 70.30567104 W 149.09070205 6681.38 89.76 355.27 5039.16 5120.68 2399.78 2522.13 2405.02 2394.61 223.56 2.27 5962233.59 612236.94 N 70.30575851 W 149.09072404 6712.54 89.80 354.14 5039.28 5120.80 2430.72 2553.29 2435.66 2425.64 220.69 3.63 5962264.56 612233.60 N 70.30584327 W 149.09074733 6744.54 89.83 354.26 5039.38 5120.90 2462.46 2585.29 2467.08 2457.47 217.45 0.39 5962296.35 612229.89 N 70.30593024 W 149.09077352 6776.95 88.94 355.03 5039.73 5121.25 2494.63 2617.70 2498.96 2489.74 214.43 3.63 5962328.56 612226.39 N 70.30601839 W 149.090 6807.60 88.63 354.63 5040.38 5121.90 2525.06 2648.34 2529.13 2520.26 211.67 1.65 5962359.03 612223.17 N 70.30610176 W 149.090 6840.03 88.56 354.61 5041.17 5122.69 2557.24 2680.76 2561.05 2552.53 208.63 0.22 5962391.26 612219.65 N 70.30618994 W 149.09084498 6872.28 91.00 354.86 5041.30 5122.82 2589.26 2713.01 2592.82 2584.65 205.67 7.61 5962423.32 612216.21 N 70.30627767 W 149.09086895 6903.82 92.58 355.86 5040.31 5121.83 2620.60 2744.53 2623.94 2616.07 203.12 5.93 5962454.69 612213.20 N 70.30636351 W 149.09088960 6935.88 92.88 355.26 5038.79 5120.31 2652.45 2776.55 2655.58 2647.99 200.64 2.09 5962486.58 612210.24 N 70.30645073 W 149.09090967 6968.34 92.82 355.29 5037.17 5118.69 2684.68 2808.97 2687.60 2680.30 197.97 0.21 5962518.84 612207.09 N 70.30653900 W 149.09093130 6999.62 92.78 355.60 5035.64 5117.16 2715.74 2840.22 2718.48 2711.45 195.49 1.00 5962549.94 612204.14 N 70.30662408 W 149.09095139 7032.19 91.82 353.94 5034.34 5115.86 2748.06 2872.76 2750.60 2743.85 192.52 5.88 5962582.30 612200.70 N 70.30671261 W 149.09097541 7064.82 91.21 352.84 5033.47 5114.99 2780.34 2905.38 2782.66 2776.25 188.77 3.85 5962614.64 612196.46 N 70.30680113 W 149.09100582 7095.97 92.20 352.86 5032.55 5114.07 2811.12 2936.52 2813.23 2807.15 184.89 3.18 5962645.47 612192.12 N 70.30688553 W 149.09103721 7128.29 92.44 353.31 5031.24 5112.76 2843.06 2968.81 2844.97 2839.21 181.00 1.58 5962677.46 612187.76 N 70.30697311 W 149.09106870 z SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM Page 3 of 8 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft ft ft ft de 100 ft ftUS ftUS 7161.01 92.33 353.28 5029.88 5111.40 2875.42 3001.50 2877.14 7192.38 92.51 353.38 5028.55 5110.07 2906.44 3032.84 2907.99 7224.12 92.51 353.57 5027.16 5108.68 2937.83 3064.55 2939.23 7255.72 92.47 352.58 5025.79 5107.31 2969.06 3096.12 2970.30 7286.94 92.51 353.17 5024.43 5105.95 2999.89 3127.31 3000.99 7319.18 92.51 352.05 5023.02 5104.54 3031.71 3159.52 3032.66 7351.58 92.44 352.31 5021.62 5103.14 3063.65 3191.89 3064.47 7382.84 92.51 352.17 5020.27 5101.79 3094.47 3223.12 3095.17 7415.20 92.61 352.51 5018.83 5100.35 3126.38 3255.45 3126.96 7446.74 92.37 352.76 5017.46 5098.98 3157.51 3286.96 3158.00 7477.95 92.51 352.87 5016.13 5097.65 3188.33 3318.14 3188.73 7510.48 91.79 351.03 5014.91 5096.43 3220.38 3350.65 3220.70 7542.32 91.34 348.22 5014.04 5095.56 3251.51 3382.48 3251.75 Tie-in Survey 7542.32 91.34 348.22 5014.04 5095.56 3251.51 3382.48 3251.75 MWD+IFR+MS 7574.22 91.61 349.44 5013.22 5094.74 3282.62 3414.37 3282.78 7580.00 91.10 349.31 5013.08 5094.60 3288.27 3420.14 3288.41 7605.53 88.87 348.72 5013.09 5094.61 3313.19 3445.67 3313.28 7636.11 88.90 348.19 5013.68 5095.20 3342.97 3476.25 3343.02 7668.00 88.87 348.50 5014.30 5095.82 3374.01 3508.13 3374.03 7697.75 89.32 348.13 5014.77 5096.29 3402.96 3537.88 3402.97 7728.78 89.90 346.83 5014.98 5096.50 3433.06 3568.91 3433.06 7758.34 88.77 345.16 5015.33 5096.85 3461.54 3598.46 3461.55 7788.81 88.80 346.74 5015.97 5097.49 3490.88 3628.93 3490.93 7819.22 88.32 348.24 5016.74 5098.26 3520.36 3659.33 3520.47 7848.37 87.84 350.30 5017.71 5099.23 3548.83 3688.46 3548.98 7879.00 87.43 352.03 5018.98 5100.50 3578.93 3719.06 3579.14 7909.17 85.79 353.70 5020.76 5102.28 3608.70 3749.18 3608.96 7937.97 85.92 355.54 5022.84 5104.36 3637.21 3777.91 3637.51 7968.26 85.74 356.86 5025.05 5106.57 3667.29 3808.12 3667.62 7998.52 85.31 358.42 5027.41 5108.93 3697.39 3838.28 3697.75 2871.67 2902.80 2934.31 2965.65 2996.60 3028.54 3060.61 3091.55 3123.59 3154.84 3185.78 3217.96 3249.27 3249.27 3280.55 3286.23 3311.29 3341.25 3372.47 3401.60 3431.90 3460.57 3490.12 3519.80 3548.42 3578.66 3608.55 3637.14 3667.29 3697.43 177.19 0.35 5962709.87 612183.46 N 70.30706181 W 149.09109961 173.55 0.66 5962740.93 612179.35 N 70.30714686 W 149.09112910 169.94 0.60 5962772.38 612175.28 N 70.30723292 W 149.09115828 166.14 3.13 5962803.66 612171.01 N 70.30731854 W 149.09118911 162.27 1.89 5962834.54 612166.68 N 70.30740309 W 149.09122045 158.13 153.72 149.50 145.20 141.16 137.26 132.70 126.97 126.97 120.80 119.73 114.87 108.75 102.31 96.28 89.55 82.40 75.01 68.42 63.00 58.30 54.56 51.86 49.86 48.62 8028.12 88.25 358.66 5029.07 5110.59 3726.90 3867.83 3727.27 3726.97 47.87 8058.18 89.08 359.52 5029.77 5111.29 3756.92 3897.88 3757.31 3757.01 47.39 8088.87 87.74 359.06 5030.62 5112.14 3787.58 3928.56 3787.98 3787.69 47.01 8117.38 87.57 359.45 5031.79 5113.31 3816.04 3957.05 3816.46 3816.17 46.64 8147.88 88.01 0.42 5032.96 5114.48 3846.50 3987.53 3846.93 3846.65 46.60 3.47 5962866.41 612162.06 N 70.30749035 W 149.09125400 0.83 5962898.41 612157.18 N 70.30757796 W 149.09128967 0.50 5962929.29 612152.50 N 70.30766250 W 149.09132383 1.09 5962961.26 612147.72 N 70.30775003 W 149.09135873 1.10 5962992.44 612143.21 N 70.30783540 W 149.09139145 0.57 5963023.31 612138.85 N 70.30791992 W 149.091 6.07 5963055.42 612133.82 4 N 70.30800785 W 149.0914 8.93 5963086.63 612127.62 N 70.30809337 W 149.09150 0.00 5963086.64 612127.62 N 70.30809337 W 149.09150634 3.92 5963117.82 612120.98 N 70.30817884 W 149.09155638 9.11 5963123.48 612119.83 N 70.30819435 W 149.09156501 9.04 5963148.47 612114.59 N 70.30826282 W 149.09160442 1.74 5963178.33 612108.03 N 70.30834465 W 149.09165398 0.98 5963209.45 612101.12 N 70.30842996 W 149.09170616 1.96 5963238.48 612094.67 N 70.30850954 W 149.09175497 4.59 5963268.67 612087.49 N 70.30859229 W 149.09180946 6.82 5963297.23 612079.91 N 70.30867064 W 149.09186740 5.19 5963326.67 612072.08 N 70.30875137 W 149.09192731 5.18 5963356.24 612065.05 N 70.30883245 W 149.09198066 7.25 5963384.78 612059.20 N 70.30891064 W 149.09202460 5.80 5963414.94 612054.05 N 70.30899326 W 149.09206267 7.75 5963444.76 612049.86 N 70.30907489 W 149.09209298 6.39 5963473.31 612046.75 N 70.30915302 W 149.09211480 4.39 5963503.42 612044.29 N 70.30923536 W 149.092 5.33 5963533.54 612042.60 1 N 70.30931771 W 149.092 9.97 5963563.06 612041.41 N 70.30939841 W 149.09214717 3.98 5963593.09 612040.48 N 70.30948050 W 149.09215104 4.62 5963623.76 612039.65 N 70.30956430 W 149.09215412 1.49 5963652.23 612038.85 N 70.30964211 W 149.09215712 3.49 5963682.70 612038.36 N 70.30972537 W 149.09215739 8178.01 86.64 359.02 5034.37 5115.89 3876.58 4017.62 3877.02 3876.75 46.46 6.50 5963712.79 612037.77 N 70.30980759 W 149.09215858 8207.75 86.33 358.82 5036.19 5117.71 3906.24 4047.31 3906.69 3906.42 45.90 1.24 5963742.45 612036. 77 N 70.30988867 W 149.09216311 8237.36 86.43 358.80 5038.06 5119.58 3935.75 4076.86 3936.23 3935.97 45.28 0.34 5963771.98 612035. 71 N 70.30996938 W 149.09216808 8268.52 86.14 359.07 5040.08 5121.60 3966.81 4107.95 3967.31 3967.06 44.71 1.27 5963803.05 612034. 67 N 70.31005432 W 149.09217276 8298.13 89.25 359.74 5041.27 5122.79 3996.38 4137.53 3996.88 3996.64 44.40 10.74 5963832.63 612033. 92 N 70.31013513 W 149.09217525 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM Page 4 of 8 Comments Measured Inclination Azimuth SulrSea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure n de de n n n ft ft ft ft de oo ft ftUS itUS i53L/.bi5 yV.iSy U.t54 bU41.L4 b1 LL./b 4UL5.`JL 41b/.UtS 4ULb.4J 4ULb.l `J 44.55 ti.(itf byti:itfti'L.1/ 8357.88 90.86 1.10 5040.78 5122.30 4056.11 4197.28 4056.63 4056.38 45.06 0.87 5963892.36 8389.04 90.79 1.74 5040.33 5121.85 4087.27 4228.44 4087.78 4087.53 45.83 2.07 5963923.52 8421.34 90.41 0.96 5039.99 5121.51 4119.57 4260.73 4120.08 4119.81 46.59 2.69 5963955.81 8452.08 90.14 0.52 5039.84 5121.36 4150.30 4291.47 4150.82 4150.55 46.99 1.68 5963986.55 8484.77 90.96 1.07 5039.53 5121.05 4182.99 4324.16 4183.51 4183.24 47.44 3.02 5964019.23 8516.66 91.55 1.99 5038.83 5120.35 4214.87 4356.04 4215.38 4215.11 48.29 3.43 5964051.11 8548.34 92.61 2.64 5037.68 5119.20 4246.53 4387.70 4247.03 4246.74 49.57 3.92 5964082.75 8580.34 92.61 2.39 5036.22 5117.74 4278.49 4419.67 4278.98 4278.68 50.98 0.78 5964114.70 8612.46 92.71 1.80 5034.73 5116.25 4310.57 4451.76 4311.05 4310.74 52.15 1.86 5964146.78 8643.87 93.36 1.43 5033.07 5114.59 4341.94 4483.12 4342.42 4342.09 53.03 2.38 5964178.14 8675.54 93.26 2.13 5031.24 5112.76 4373.56 4514.74 4374.03 4373.69 54.01 2.23 5964209.75 8707.71 93.12 2.00 5029.45 5110.97 4405.67 4546.86 4406.14 4405.79 55.17 0.59 5964241.86 8739.01 92.92 1.43 5027.80 5109.32 4436.93 4578.11 4437.39 4437.04 56.11 1.93 5964273.11 8770.60 92.51 0.81 5026.30 5107.82 4468.48 4609.67 4468.94 4468.58 56.72 2.35 5964304.66 8802.58 92.78 1.38 5024.83 5106.35 4500.43 4641.62 4500.89 4500.52 57.33 1.97 5964336.60 8834.22 93.50 1.32 5023.09 5104.61 4532.02 4673.21 4532.48 4532.11 58.08 2.28 5964368.19 8865.27 93.95 359.51 5021.08 5102.60 4563.00 4704.19 4563.46 4563.09 58.30 5.99 5964399.17 8897.63 94.70 357.67 5018.64 5100.16 4595.22 4736.46 4595.71 4595.35 57.51 6.13 5964431.41 8929.00 94.53 357.40 5016.11 5097.63 4626.41 4767.73 4626.93 4626.59 56.17 1.01 5964462.62 8960.49 94.26 357.57 5013.70 5095.22 4657.73 4799.13 4658.28 4657.95 54.79 1.01 5964493.96 8992.88 94.02 357.08 5011.36 5092.88 4689.95 4831.43 4690.53 4690.22 53.28 1.68 5964526.20 9025.79 93.78 357.39 5009.12 5090.64 4722.69 4864.26 4723.30 4723.02 51.70 1.19 5964558.97 9057.74 93.64 356.84 5007.06 5088.58 4754.48 4896.15 4755.13 4754.86 50.09 1.77 5964590.78 9088.35 92.09 357.40 5005.53 5087.05 4784.96 4926.72 4785.64 4785.39 48.56 5.38 5964621.28 9121.10 92.27 356.94 5004.28 5085.80 4817.59 4959.44 4818.31 481.8.08 46.94 1.51 5964653.94 9153.26 92.71 357.47 5002.88 5084.40 4849.62 4991.57 4850.38 4850.17 45.37 2.14 5964686.00 9184.67 93.33 356.07 5001.23 5082.75 4880.88 5022.94 4881.68 4881.49 43.61 4.87 5964717.29 9217.01 93.67 357.06 4999.25 5080.77 4913.04 5055.22 4913.88 4913.71 41.67 3.23 5964749.47 9248.62 91.89 355.00 4997.72 5079.24 4944.46 5086.79 4945.36 4945.20 39.49 8.61 5964780.93 9280.59 91.45 353.52 4996.79 5078.31 4976.16 5118.75 4977.13 4977.00 36.29 4.83 5964812.67 9313.31 93.19 355.33 4995.46 5076.98 5008.59 5151.44 5009.64 5009.53 33.11 7.67 5964845.15 9344.51 93.30 356.04 4993.70 5075.22 5039.58 5182.59 5040.69 5040.59 30.77 2.30 5964876.17 9377.01 93.02 355.41 4991.91 5073.43 5071.86 5215.04 5073.03 5072.95 28.35 2.12 5964908.49 9409.18 92.61 356.62 4990.33 5071.85 5103.85 5247.17 5105.07 5105.01 26.12 3.97 5964940.50 9440.81 92.47 357.78 4988.92 5070.44 5135.35 5278.77 5136.63 5136.57 24.57 3.69 5964972.03 9472.78 92.40 357.94 4987.57 5069.09 5167.23 5310.71 5168.54 5168.49 23.38 0.55 5965003.93 9504.88 92.71 358.79 4986.13 5067.65 5199.25 5342.78 5200.59 5200.54 22.47 2.82 5965035.96 9536.22 92.64 358.01 4984.67 5066.19 5230.50 5374.08 5231.88 5231.83 21.59 2.50 5965067.24 9568.49 91.73 357.03 4983.44 5064.96 5262.67 5406.33 5264.09 5264.05 20.20 4.14 5965099.42 9600.55 92.78 357.51 4982.18 5063.70 5294.62 5438.37 5296.08 5296.05 18.67 3.60 5965131.39 (ilLU:i~.tii N /U.:iIU"L1btSb W 14y.Uy11/404 612033.69 N 70.31029833 W 149.09216989 612034.00 N 70.31038343 W 149.09216364 612034.28 N 70.31047164 W 149.09215747 612034.22 N 70.31055561 W 149.09215425 612034.18 N 70.31064490 W 149.09215057 612034.56 N 70.31073197 W 149.09214368 612035.37 N 70.31081838 W 149.09213331 612036.29 N 70.31090563 W 149.09212195 612036.99 N 70.31099323 W 149.09211244 612037.40 N 70.31107888 W 149.09210528 612037.91 N 70.31116522 W 149.0920 612038.59 N 70.31125291 W 149.0920 612039.06 N 70.31133826 W 149.09208 612039.21 N 70.31142445 W 149.09207535 612039.34 N 70.31151170 W 149.09207041 612039.62 N 70.31159799 W 149.09206437 612039.38 N 70.31168263 W 149.09206255 612038.10 N 70.31177075 W 149.09206898 612036.29 N 70.31185609 W 149.09207988 612034.45 N 70.31194179 W 149.09209104 612032.46 N 70.31202995 W 149.09210325 612030.39 N 70.31211954 W 149.09211608 612028.31 N 70.31220653 W 149.09212908 612026.32 N 70.31228994 W 149.09214153 612024.22 N 70.31237924 W 149.09215462 612022.17 N 70.31246691 W 149.09216731 612019.94 N 70.31255246 W 149.09218163 612017.52 N 70.31264049 W 149.09219730 612014.87 N 70.31272653 W 149.09221 1 612011.20 N 70.31281339 W 149.0922 612007.54 N 70.31290227 W 149.09226664 612004.73 N 70.31298713 W 149.09228563 612001.83 N 70.31307554 W 149.09230523 611999.12 N 70.31316310 W 149.09232332 611997.11 N 70.31324932 W 149.09233583 611995.44 N 70.31333652 W 149.09234549 611994.04 N 70.31342409 W 149.09235291 611992.70 N 70.31350959 W 149.09235999 611990.83 N 70.31359760 W 149.09237130 611988.83 N 70.31368501 W 149.09238366 SurveyEditor Ver SP 2.1 Bid( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM Page 5 of 8 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft ft ft n n tt de 100 ft ftUS ftUS `Jb3Y.Zb `J3.J3 35/.b4 4`JCV.4`J OVbZ.V 1 b3Lb.ZV b4/V.U3 9664.91 93.43 358.41 4978.57 5060.09 5358.74 5502.62 9696.63 93.20 359.66 4976.73 5058.25 5390.37 5534.29 9728.44 92.30 1.31 4975.20 5056.72 5422.14 5566.06 9760.98 91.99 359.63 4973.99 5055.51 5454.65 5598.58 9792.15 93.95 0.65 4972.37 5053.89 5485.77 5629.71 9823.77 93.26 1.05 4970.38 5051.90 5517.32 5661.26 9855.77 90.38 0.15 4969.37 5050.89 5549.29 5693.24 9887.84 87.64 358.74 4969.92 5051.44 5581.34 5725.31 9918.88 87.74 358.99 4971.17 5052.69 5612.32 5756.32 9951.22 87.94 358.63 4972.39 5053.91 5644.60 5788.64 9982.93 87.67 359.05 4973.61 5055.13 5676.25 5820.33 10015.06 86.84 359.35 4975.14 5056.66 5708.31 5852.42 10038.55 86.67 359.38 4976.47 5057.99 5731.75 5875.87 10079.25 87.29 0.04 4978.62 5060.14 5772.37 5916.51 10111.86 88.60 0.53 4979.79 5061.31 5804.95 5949.10 10130.87 88.63 0.42 4980.25 5061.77 5823.95 5968.11 10162.85 88.94 2.90 4980.93 5062.45 5855.92 6000.08 10194.72 89.21 4.05 4981.44 5062.96 5887.77 6031.95 10226.18 89.21 3.70 4981.87 5063.39 5919.20 6063.40 10257.67 89.32 3.81 4982.28 5063.80 5950.66 6094.89 10290.70 89.97 3.43 4982.48 5064.00 5983.67 6127.92 10321.41 89.28 3.76 4982.68 5064.20 6014.36 6158.63 10353.48 88.60 3.95 4983.28 5064.80 6046.40 6190.69 10385.89 10418.33 10450.35 10482.83 10513.73 10545.35 10577.62 10609.63 10640.96 10673.39 10704.63 10736.60 10768.48 10800.54 10832.57 10864.25 10896.33 88.36 3.22 4984.14 5065.66 6078.78 6223.09 88.25 4.32 4985.10 5066.62 6111.18 6255. 52 88.05 3.49 4986.13 5067.65 6143.15 6287. 52 88.15 3.38 4987.21 5068.73 6175.60 6319. 98 89.42 3.73 4987.86 5069.38 6206.47 6350. 88 D3Z/./ I 5360.28 5391.94 5423.72 5456.23 5487.36 5518.91 5550.89 5582.95 5613.96 5646.26 5677.94 5710.03 5733.48 5774.12 5806.71 5825.72 5857.67 5889.49 5920.88 5952.30 5985.28 6015.93 6047.93 6080.28 6112.64 6144.58 6177.00 6207.84 a3c/.ba 5360.26 5391.92 5423.69 5456.21 5487.33 5518.89 5550.86 5582.92 5613.93 5646.24 5677.92 5710.01 5733.46 5774.11 5806.69 5825.70 5857.65 5889.46 5920.85 5952.27 5985.23 6015.88 6047.87 6080.20 6112.56 6144.49 6176.89 6207.73 I /.3J I./b b~bb IOJ.VV bl l~6/.VI IV /V.JIJ//144 VV 14~.VbLJ.74bG 16.21 2.37 5965195.55 611985.41 N 70.31386043 W 149.09240362 15.67 4.00 5965227.20 611984.40 N 70.31394693 W 149.09240794 15.94 5.90 5965258.97 611984.20 N 70.31403372 W 149.09240576 16.21 5.25 5965291.48 611983.98 N 70.31412255 W 149.09240359 16.29 7.09 5965322.60 611983.59 N 70.31420759 W 149.09240298 16.75 2.52 5965354.16 611983.59 N 70.31429379 W 149.09239918 17.09 9.43 5965386.13 611983.45 N 70.31438115 W 149.09239647 16.78 9.61 5965418.18 611982.66 N 70.31446873 W 149.09239899 16.16 0.87 5965449.18 611981.58 N 70.31455345 W 149.09240396 15.49 1.27 5965481.47 611980.43 N 70.31464171 W 149.09240940 14.85 1.57 5965513.13 611979.31 N 70.31472826 W 149.09241 14.40 2.75 5965545.21 611978.39 N 70.31481593 W 149.0924 14.14 0.73 5965568.65 611977.78 N 70.31487999 W 149.09242 13.94 14.10 14.26 15.18 17.12 19.24 21.30 23.39 25.31 27.47 29.50 31.63 33.81 35.75 37.67 2.22 4.29 0.60 7.81 3.71 1.11 0.49 2.28 2.49 2.20 2.37 3.41 2.67 0.46 4.26 5965609.29 611976. 97 N 70.31499103 W 149.09242200 5965641.87 611976. 64 N 70.31508006 W 149.09242069 5965660.87 611976. 52 N 70.31513197 W 149.09241941 5965692.84 611976. 97 N 70.31521927 W 149.09241190 5965724.66 611978. 42 N 70.31530617 W 149.09239625 5965756.08 5965787.52 5965820.51 5965851.18 5965883.20 5965915.55 5965947.94 5965979.89 5966012.32 5966043.17 90.31 4.05 4987.94 5069.46 6238.07 6382.49 6239.40 6239.27 39.81 2.99 5966074.74 90.14 3.85 4987.81 5069.33 6270.31 6414.76 6271.61 6271.47 42.04 0.81 5966106.96 89.97 4.52 4987.78 5069.30 6302.28 6446.77 6303.55 6303.39 44.37 2.16 5966138.92 89.76 3.71 4987.85 5069.37 6333.58 6478.10 6334.81 6334.64 46.62 2.67 5966170.19 89.83 3.43 4987.97 5069.49 6365.99 6510.53 6367.19 6367.00 48.64 0.89 5966202.58 89.66 3.93 4988.11 5069.63 6397.21 6541.77 6398.38 6398.18 50.64 1.69 5966233.78 89.59 4.19 4988.32 5069.84 6429.15 6573.74 6430.29 6430.07 52.91 0.84 5966265.70 89.49 3.92 4988.57 5070.09 6461.00 6605.62 6462.10 6461.87 55.16 0.90 5966297.53 89.39 4.12 4988.89 5070.41 6493.02 6637.68 6494.10 6493.85 57.41 0.70 5966329.53 89.45 3.14 4989.21 5070.73 6525.03 6669.71 6526.08 6525.81 59.44 3.07 5966361.52 89.69 3.51 4989.45 5070.97 6556.70 6701.39 6557.72 6557.44 61.27 1.39 5966393.17 88.77 3.86 4989.88 5071.40 6588.75 6733.46 6589.75 6589.45 63.34 3.07 5966425.20 611980.08 N 70.31539191 W 149.09237902 611981.67 N 70.31547775 W 149.09236231 611983.27 N 70.31556780 W 149.09234540 611984.74 N 70.31565153 W 149.09232980 611986.41 N 70.31573893 W 149.09231233 611987.96 N 70.31582726 W 149.09229591 611989.61 N 70.31591566 W 149.09227863 611991.31 N 70.31600288 W 149.09226096 611992.77 N 70.31609141 W 149.09224520 611994.23 N 70.31617564 W 149.09222967 611995.90 611997.64 611999.50 612001.28 612002.82 612004.36 612006.15 612007.93 612009.70 612011.25 612012.61 612014.20 N 70.31626182 W 149.092 N 70.31634977 W 149.0921 N 70.31643699 W 149.09217533 N 70.31652236 W 149.09215711 N 70.31661078 W 149.09214074 N 70.31669595 W 149.09212449 N 70.31678306 W 149.09210614 N 70.31686994 W 149.09208787 N 70.31695730 W 149.09206965 N 70.31704463 W 149.09205322 N 70.31713102 W 149.09203832 N 70.31721847 W 149.09202161 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM Page 6 of 8 Comments Measured Inclination Azimuth SuaSea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting latitude Longitude Depth Section Departure ft de de ft tt tt ft ft ft tt de 100 ft ttUS ftUS 1 Vy"L/.yU 10960.10 10991.70 11023.39 11055.34 11087.20 11119.08 11151.37 11182.47 11214.85 11245.97 11275.75 11310.99 11342.94 11374.34 11406.17 11438.85 11469.89 11500.61 11533.97 11565.49 11596.92 11628.99 tSti.tfb 86.98 86.19 86.02 85.61 85.95 87.43 88.80 88.94 88.77 88.56 88.49 88.42 88.77 89.42 89.25 88.87 88.60 88.60 88.49 88.12 87.22 87.12 4.114 4yy1.Vy bU /'L.bl bbLU.Zb b/bb.Ul bbYl.Z3 bbZV.yl bO.b/ b.5b bybb4bb.by 4.56 4992.82 5074.34 6652.37 6797,16 6653.31 6652.96 68.25 0.47 5966488.77 4.60 4994.70 5076.22 6683.87 6828.71 6684.77 6684.40 70.77 2.50 5966520.24 4.32 4996.85 5078.37 6715.44 6860.32 6716.32 6715.92 73.23 1.03 5966551.80 4.54 4999.19 5080.71 6747.27 6892.19 6748.11 6747.69 75.69 1.46 5966583.60 4.16 5001.53 5083.05 6779.00 6923.96 6779.82 6779.37 78.10 1.60 5966615.31 4.79 5003.37 5084.89 6810.79 6955.79 6811.58 6811.10 80.58 5.04 5966647.07 6.49 5004.43 5085.95 6842.98 6988.06 6843.73 6843.21 83.76 6.76 5966679.22 6.30 5005.05 5086.57 6873.96 7019.15 6874.67 6874.11 87.22 0.76 5966710.17 6.19 5005.69 5087.21 6906.22 7051.53 6906.89 6906.30 90.74 0.63 5966742.40 5.63 5006.42 5087.94 6937.25 7082.64 6937.88 6937.24 93.94 1.92 5966773.38 5.74 5007.18 5088.70 6966.94 7112.41 6967.54 6966.87 96.89 0.44 5966803.05 5.35 5008.13 5089.65 7002.08 7147.64 7002.65 7001.93 100.30 1.12 5966838.15 6.39 7.86 8.11 7.71 7.02 7.93 8.11 8.35 8.52 8.94 11661.10 87.09 8.50 11692.90 87.26 8.76 11724.98 87.98 8.28 11757.40 88.01 8.68 11788.63 88.05 8.00 5008.92 5009.41 5009.78 5010.32 5011.01 5011.76 5012.60 5013.54 5014.81 5016.40 5018.02 5019.59 5020.92 5022.05 5023.13 5090.44 5090.93 5091.30 5091.84 5092.53 5093.28 5094.12 5095.06 5096.33 5097.92 5099.54 5101.11 5102.44 5103.57 5104.65 11819.72 87.80 7.96 5024.25 5105.77 11851.70 89.21 10.65 5025.09 5106.61 11884.21 88.87 11.96 5025.63 5107.15 11915.80 88.36 13.08 5026.39 5107.91 11947.14 88.70 14.58 5027.20 5108.72 7033.93 7065.18 7096.80 7129.28 7160.15 7190.70 7223.83 7255.13 7286.30 7318.08 7349.90 7381.42 7413.23 7445.40 7476.39 7507.26 7538.94 7570.97 7601.97 7632.59 7179.58 7210.97 7242.80 7275.48 7306.51 7337.22 7370.57 7402.07 7433.48 7465.51 7497.58 7529.34 7561.39 7593.79 7625.00 7656.07 7688.04 7720.55 7752.13 7783.46 11978.94 89.35 15.02 5027.74 5109.26 7663.54 7815.25 12011.04 90.34 13.04 5027.83 5109.35 7694.88 7847.35 12043.06 91.37 11.63 5027.35 5108.87 7726.32 7879.37 12074.75 89.90 9.62 5027.00 5108.52 7757.61 7911.05 12106.64 88.36 9.44 5027.48 5109.00 7789.19 7942.94 12138.71 88.08 9.37 5028.48 5110.00 7820.94 7974.99 12170.39 88.19 7.82 5029.51 5111.03 7852.37 8006.66 12202.71 88.70 6.05 5030.39 5111.91 7884.53 8038.97 7034.46 7033.70 103.56 3.43 5966869.97 7065.67 7064.85 107.46 5.12 5966901.17 7097.25 7096.37 111.88 0.95 5966932.75 7129.69 7128.74 116.38 1.69 5966965.17 7160.52 7159.51 120.35 2.39 5966996.00 7191.04 7224.14 7255.40 7286.54 7318.29 7350.08 7381.57 7413.36 7445.50 7476.47 7507.33 7538.99 7571.00 7601.99 7632.59 7663.54 7694.88 7726.33 7757.63 7789.22 7820.98 7852.42 7884.59 7189.96 7222.99 7254.17 7285.23 7316.89 7348.59 7379.99 7411.69 7443.74 7474.62 7505.39 7536.93 7568.80 7599.63 7630.05 7660.79 7691.93 7723.21 7754.35 7785.80 7817.42 7848.73 7880.80 b IZUIb.U/ IV /U.31/3V44Z VV 14`J.U`JZVUZOb 612018.17 N 70.31739197 W 149.09198176 612020.22 N 70.31747787 W 149.09196134 612022.20 N 70.31756398 W 149.09194141 612024.19 N 70.31765078 W 149.09192146 612026.13 N 70.31773733 W 149.09190192 612028.14 N 70.31782401 W 149.09188179 612030.83 N 70.31791174 W 149.09185608 612033.83 612036.87 612039.62 612042.12 612045.00 612047.80 612051.22 612055.17 612059.19 612062.71 N 70.31799616 W 149.09182801 N 70.31808408 W 149.09179946 N 70.31816862 W 149.09177350 N 70.31824955 W 149.0917 N 70.31834534 W 149.0917 N 70.31843214 W 149.09169552 N 70.31851724 W 149.09166395 N 70.31860335 W 149.09162811 N 70.31869177 W 149.09159166 N 70.31877584 W 149.09155941 124.35 2.96 5967026.51 612066.25 N 70.31885903 W 149.09152702 129.00 0.63 5967059.59 612070.41 N 70.31894924 W 149.09148930 133.51 1.40 5967090.84 612074.45 N 70.31903443 W 149.09145274 138.12 2.91 5967121.96 612078.59 N 70.31911929 W 149.09141540 142.98 1.34 5967153.69 612082.98 N 70.31920579 W 149.09137599 147.84 1.37 5967185.45 612087.37 N 70.31929238 W 149.09133657 152.61 0.98 5967216.92 612091.67 N 70.31937817 W 149.09129794 157.36 2.70 5967248.68 612095.94 N 70.31946477 W 149.09125944 162.13 1.24 5967280.79 612100.24 N 70.31955231 W 149.09122071 166.66 2.18 5967311.73 612104.31 N 70.31963668 W 149.09118400 170.98 0.81 5967342.56 612108.16 N 70.31972073 W 149.091 176.14 9.49 5967374.18 612112.86 1 N 70.31980691 W 149.0911 182.52 4.16 5967406.14 612118.75 N 70.31989399 W 149.0910 189.36 3.89 5967437.07 612125.14 N 70.31997821 W 149.09099998 196.85 4.91 5967467.59 612132.17 N 70.32006132 W 149.09093927 204.97 2.47 5967498.45 612139.83 N 70.32014530 W 149.09087342 212.75 6.90 5967529.70 612147.15 N 70.32023037 W 149.09081034 219.59 5.45 5967561.07 612153.52 N 70.32031581 W 149.09075489 225.44 7.86 5967592.29 612158.90 N 70.32040089 W 149.09070752 230.71 4.86 5967623.81 612163.71 N 70.32048679 W 149.09066472 235.95 0.90 5967655.51 612168.47 N 70.32057319 W 149.09062225 240.68 4.90 5967686.88 612172.74 N 70.32065871 W 149.09058389 244.59 5.70 5967719.00 612176.16 N 70.32074633 W 149.09055226 1 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM Page 7 of 8 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de n n ft n n n ft de oo ft nUS nUS 1ZZ34./3 tStS.Zy b.y3 bV31.Z3 b11Z./b /`JIb.4Z t5U/U.`JLS /`JIb.4`J /`JIZ.bV L48.LV 3.V3 byb//bu.b~ 12266.63 87.88 6.50 5032.29 5113.81 7948.17 8102.86 7948.26 7944.27 251.93 1.86 5967782.56 12298.98 88.12 7.81 5033.42 5114.94 7980.35 8135.19 7980.45 7976.34 255.96 4.11 5967814.69 12329.10 89.11 9.49 5034.15 5115.67 8010.23 8165.30 8010.35 8006.11 260.49 6.47 5967844.52 12360.32 89.49 10.74 5034.53 5116.05 8041.10 8196.52 8041.24 8036.84 265.97 4.18 5967875.33 12392.88 89.25 10.90 5034.89 5116.41 8073.23 8229.07 8073.41 8068.82 272.08 0.89 5967907.39 12424.91 88.43 10.06 5035.54 5117.06 8104.86 8261.10 8105.08 8100.31 277.91 3.66 5967938.96 12457.26 89.01 8.32 5036.26 5117.78 8136.92 8293.44 8137.16 8132.24 283.07 5.67 5967970.96 12489.42 89.25 8.86 5036.75 5118.27 8168.83 8325.59 8169.11 8164.03 287.87 1.84 5968002.82 12520.77 89.25 9.27 5037.16 5118.68 8199.91 8356.94 8200.22 8194.99 292.81 1.31 5968033.84 12552.05 89.21 8.53 5037.58 5119.10 8230.93 8388.22 8231.27 8225.89 297.65 2.37 5968064.81 Last MWD+IFR+MS 12573.04 89.21 9.40 5037.87 5119.39 8251.74 8409.21 8252.11 8246.62 300.92 4.14 5968085.59 TD (Projected) 12630.00 89.21 9.40 5038.65 5120.17 8308.16 8466.16 8308.60 8302.81 31022 0.00 5968141.90 Survey Type: Definitive S urvey NOTES: GYD CT DMS - (Gyrodata -cont. dri llpipe m/s -- Gyrodata pump-down multishot surveys with continuous tool (RGS-CT) in drill-pipe.) MWD +IFR + MS - (In-fie ld referenced MWD with mull-station analysis and correction applied in post-processing. Assumes a BHA sag correction is applied to enhance inclination accuracy. ) Legal Description: Northing (Y) [ftUS] Easting (X) [ftUS] Surface : 4859 FSL 1177 FEL S21 T11 N R12E UM 5959836.12 6 12049.12 BHL : 2601 FSL 848 FEL S9 T11 N R12E UM 5968141.90 6 12235.49 OILI/~.3V IV /U.3LV833L1 VV 14y.V~VbLL~L 612182.56 N 70.32091971 W 149.09049269 612186.10 N 70.32100735 W 149.09046004 612190.19 N 70.32108867 W 149.09042332 612195.21 N 70.32117262 W 149.09037887 612200.85 N 70.32125999 W 149.09032931 612206.20 N 70.32134601 W 149.09028209 612210.89 N 70.32143323 W 149.09024021 612215.22 N 70.32152009 W 149.09020126 612219.69 N 70.32160466 W 149.09016121 612224.07 N 70.32168907 W 149.09012198 612227.03 N 70.32174571 W 149.09009 612235.49 N 70.32189922 W 149.090020 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204\W-204 Generated 3/28/2007 10:56 AM Page 8 of 8 by ,~~~~~~~~~~~~~. Schlum~erger ~a~r ~~ i w~ w w ~ w w ik~~$~~: vv-~u4r~ i ~u Report Date: 1-Feb-07 Client: BP Exploration Alaska Field: Prudhoe Bay Unit - WOA Structure /Slot: WPAD / W-204 Well; W-204 Borehole: W-204P61 UWIIAPI#: 50292333370 Survey Name /Date: W-204PB1 /February 1, 2007 Tort /AHD / DDI / ERD ratio: 262.661 ° / 4763.16 ft / 6.337 / 0.927 Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Location LaULong: N 70.29921663, W 149.09253499 Location Grid NIE Y/X: N 5959836.120 ttUS, E 612049.120 ftUS Grid Convergence Angle: +0.85435553° Grid Scale Factor: 0.99991426 rtepvr~ Survey / DLS Computation Method: Minimum Curvature / Li Vertical Section Azimuth: 1.550° Vertical Section Origin: N 0.000 it, E 0.000 ft TVD Reference Datum: Rotary Table TVD Reference Elevation: 81.52 ft relative to MSL Sea Bed /Ground Level Elevation: 52.60 ft relative to MSL Magnetic Declination: 23.877° Total Field Strength: 57637.751 nT Magnetic Dip: 80.887° Declination Date: January 23, 2007 Magnetic Declination Model: BGGM 2006 North Reference: True North Total Corr Mag North -> True North: +23.877° Comments Measured Inclination Azimuth Sub-Sea TVD TVD Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft tt tt tt ft ft tt de 100 tt ftUS ttUS RTE U.UU V.UV U.UU -rs~.5~ V.UV V.VV V.UU U.VV V.VV U.VV V.VU .7.-7.7.70JO.IL OILVY.7.IG IY /V.GJ.7GI VVJ YY IYJ. V.7G:lJY.7.7 GYD CT DMS 100.00 0.34 149.95 18.48 100.00 -0.25 0.30 0.30 -0.26 0.15 0.34 5959835.87 612049.27 N 70.29921592 W 149.09253378 169.00 0.40 143.89 87.48 169.00 -0.62 0.74 0.74 -0.63 0.39 0.10 5959835.50 612049.52 N 70.29921491 W 149.09253181 200.00 0.69 151.96 118.48 200.00 -0.87 1.04 1.04 -0.88 0.54 0.97 5959835.25 612049.68 N 70.29921422 W 149.09253058 258.00 0.85 159.49 176.47 257.99 -1.57 1.81 1.81 -1.59 0.86 0.33 5959834.54 612050.00 N 70.29921228 W 149.09252803 300.00 0.77 147.72 218.47 299.99 -2.09 2.41 2.40 -2.12 1.12 0.44 5959834.01 612050.27 N 70.29921083 W 149.09252592 400.00 0.98 146.00 318.46 399.98 -3.35 3.93 3.92 -3.40 1.96 0.21 5959832.75 612051.13 N 70.29920734 W 149.09251915 500.00 0.83 147.45 418.44 499.96 -4.64 5.51 5.50 -4.72 2.82 0.15 5959831.44 612052.01 N 70.29920373 W 149.09251212 600.00 0.99 142.21 518.43 599.95 -5.91 7.10 7.08 -6.01 3.74 0.18 5959830.16 612052.95 N 70.29920020 W 149.09250468 700.00 0.83 150.26 618.42 699.94 -7.20 8.69 8.67 -7.32 4.63 0.20 5959828.87 612053.86 N 70.29919662 W 149.09249748 Last GYD CT DMS 797.00 0.24 143.69 715.41 796.93 -7.96 9.59 9.57 -8.10 5.10 0.61 5959828.10 612054.34 N 70.29919450 W 149.09249368 MWD+IFR+MS 922.98 0.37 318.09 841.39 922.91 -7.87 9.94 9.43 -8.01 4.99 0.48 5959828.19 612054.22 N 70.29919475 W 149.0924 1018.61 0.79 323.25 937.02 1018.54 -7.13 10.91 8.47 -7.25 4.38 0.44 5959828.94 612053.61 N 70.29919682 W 149.0924 1114.01 0.73 329.39 1032.41 1113.93 -6.10 12.18 7.21 -6.20 3.68 0.11 5959829.98 612052.89 N 70.29919969 W 149.09250517 1210.23 0.90 353.85 1128.62 1210.14 -4.83 13.52 5.92 -4.92 3.29 0.40 5959831.25 612052.48 N 70.29920318 W 149.09250836 1303.82 1.01 342.17 1222.20 1303.72 -3.32 15.08 4.51 -3.40 2.96 0.24 5959832.76 612052.13 N 70.29920732 W 149.09251104 1399.07 1.25 356.69 1317.43 1398.95 -1.50 16.95 3.07 -1.57 2.64 0.39 5959834.59 612051.78 N 70.29921234 W 149.09251361 1495.44 1.09 355.76 1413.78 1495.30 0.46 18.91 2.54 0.40 2.51 0.17 5959836.55 612051.63 N 70.29921771 W 149.09251465 1592.28 1.20 356.89 1510.60 1592.12 2.39 20.85 3.33 2.33 2.39 0.12 5959838.48 612051.47 N 70.29922298 W 149.09251564 1687.44 0.79 330.62 1605.74 1687.26 3.95 22.47 4.38 3.89 2.01 0.63 5959840.04 612051.07 N 70.29922726 W 149.09251869 1781.85 0.83 352.86 1700.15 1781.67 5.18 23.79 5.38 5.14 1.61 0.33 5959841.28 612050.65 N 70.29923066 W 149.09252196 1877.80 1.13 2.11 1796.08 1877.60 6.81 25.43 6.95 6.77 1.56 0.35 5959842.92 612050.58 N 70.29923513 W 149.09252238 1973.78 0.96 2.84 1892.05 1973.57 8.56 27.18 8.68 8.52 1.63 0.18 5959844.67 612050.62 N 70.29923991 W 149.09252178 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204P61\W-204PB1 Generated 3/28/2007 10:56 AM Page 1 of 5 f Comments Measured Inclination Azimuth Subsea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure ft de de ft ft n n ft ft ft de 00 ft ftUS ftUS LU/U.l V 1.V4 344.`JL I `JL58.J~ LUO`J.8/ I V.L I L0.6J I U.L/ I V. I / 1.44 V.JJ .7.7.7.70yO.J 1 O ILUJV.4I IV / V.L.7.`1L444L VV 14.7.V.7L.7LJL.7 2165.30 0.84 345.88 2083.54 2165.06 11.71 30.41 11.73 11.68 1.05 0.21 5959847.82 612049.99 N 70.29924854 W 149.09252649 2261.77 0.83 345.85 2180.00 2261.52 13.06 31.81 13.07 13.05 0.71 0.01 5959849.17 612049.63 N 70.29925227 W 149.09252927 2357.09 2.40 32.53 2275.28 2356.80 15.44 34.38 15.48 15.40 1.61 2.02 5959851.54 612050.50 N 70.29925869 W 149.09252195 2452.78 4.50 42.73 2370.79 2452.31 19.98 40.13 20.53 19.85 5.24 2.28 5959856.04 612054.06 N 70.29927084 W 149.09249259 2547.41 6.89 52.37 2464.95 2546.47 26.36 49.50 28.78 26.04 12.25 2.71 5959862.34 612060.98 N 70.29928776 W 149.09243578 2643.42 9.03 49.85 2560.03 2641.55 35.01 62.79 41.16 34.42 22.57 2.26 5959870.86 612071.17 N 70.29931064 W 149.09235221 2737.28 11.06 47.21 2652.45 2733.97 46.21 79.16 57.12 45.28 34.81 2.22 5959881.91 612083.25 N 70.29934033 W 149.09225310 2833.00 11.65 39.14 2746.30 2827.82 60.28 97.97 75.85 59.02 47.65 1.77 5959895.83 612095.88 N 70.29937785 W 149.09214914 2928.85 11.95 38.20 2840.12 2921.64 75.91 117.57 95.45 74.32 59.89 0.37 5959911.32 612107.89 N 70.29941966 W 149.09204997 3024.05 12.13 38.62 2933.23 3014.75 91.80 137.43 115.31 89.88 72.23 0.21 5959927.06 612120.00 N 70.29946217 W 149.09195006 3119.93 12.90 38.76 3026.83 3108.35 108.36 158.21 136.08 106.10 85.22 0.80 5959943.47 612132.74 N 70.29950647 W 149.09184 3215.85 14.63 39.24 3119.99 3201.51 126.48 181.03 158.91 123.83 99.59 1.81 5959961.41 612146.84 N 70.29955491 W 149.091728 4 3288.00 15.06 39.22 3189.73 3271.25 141.11 199.52 177.39 138.15 111.28 0.60 5959975.90 612158.32 N 70.29959403 W 149.09163387 3348.85 14.91 40.15 3248.51 3330.03 153.48 215.25 193.12 150.26 121.32 0.47 5959988.15 612168.18 N 70.29962711 W 149.09155252 3443.74 14.78 40.00 3340.24 3421.76 172.50 239.56 217.43 168.86 136.98 0.14 5960006.99 612183.55 N 70.29967793 W 149.09142577 3538.42 14.72 39.49 3431.80 3513.32 191.45 263.67 241.53 187.39 152.39 0.15 5960025.75 612198.68 N 70.29972856 W 149.09130096 3635.18 14.59 40.18 3525.41 3606.93 210.66 288.15 266.01 206.19 168.07 0.22 5960044.78 612214.08 N 70.29977992 W 149.09117397 3730.28 14.66 40.00 3617.43 3698.95 229.44 312.16 290.02 224.56 183.53 0.09 5960063.37 612229.27 N 70.29983010 W 149.09104875 3827.95 14.84 39.73 3711.88 3793.40 248.95 337.03 314.89 243.65 199.47 0.20 5960082.69 612244.92 N 70.29988225 W 149.09091967 3922.15 15.04 40.21 3802.89 3884.41 267.98 361.31 339.17 262.26 215.07 0.25 5960101.53 612260.24 N 70.29993309 W 149.09079333 4019.84 18.04 36.19 3896.53 3978.05 290.33 389.11 366.95 284.15 232.19 3.29 5960123.68 612277.03 N 70.29999290 W 149.09065469 4116.03 20.06 31.99 3987.46 4068.98 316.81 420.49 398.21 310.17 249.73 2.54 5960149.95 612294.17 N 70.30006397 W 149.09051268 4211.01 24.15 26.12 4075.45 4156.97 348.54 456.20 433.40 341.45 266.92 4.89 5960181.48 612310.90 N 70.30014942 W 149.09037344 4306.19 26.17 20.20 4161.61 4243.13 386.15 496.63 472.56 378.64 282.74 3.39 5960218.90 612326.16 N 70.30025102 W 149.09024529 4401.96 28.84 12.94 4246.57 4328.09 428.82 540.81 514.18 420.99 295.21 4.47 5960261.43 612338.00 N 70.30036672 W 149.09014429 4497.91 32.29 10.05 4329.18 4410.70 476.87 589.59 559.21 468.79 304.87 3.91 5960309.37 612346.94 N 70.30049732 W 149.09006606 4592.34 35.80 6.99 4407.42 4488.94 529.33 642.44 607.66 521.06 312.64 4.14 5960361.74 612353.93 N 70.30064011 W 149.09000315 4688.49 39.68 4.99 4483.44 4564.96 587.99 701.27 661.44 579.58 318.73 4.23 5960420.34 612359.15 N 70.30079998 W 149.089 4784.39 43.38 3.68 4555.22 4636.74 651.48 764.84 719.77 642.97 323.51 3.96 5960483.78 612362.98 9 N 70.30097315 W 149.0899 4880.69 46.09 3.09 4623.62 4705.14 719.22 832.61 782.46 710.62 327.51 2.85 5960551.48 612365.96 N 70.30115797 W 149.0898 4973.34 50.11 2.26 4685.48 4767.00 788.15 901.56 846.75 779.49 330.71 4.39 5960620.39 612368.14 N 70.30134612 W 149.08985673 5074.06 54.17 1.15 4747.29 4828.81 867.65 981.06 921.27 858.96 333.05 4.12 5960699.88 612369.30 N 70.30156322 W 149.08983772 5163.32 56.40 357.44 4798.13 4879.65 940.94 1054.42 989.69 932.30 332.12 4.23 5960773.19 612367.27 N 70.30176358 W 149.08984526 5258.85 60.10 354.88 4848.40 4929.92 1021.79 1135.64 1064.67 1013.32 326.64 4.49 5960854.11 612360.59 N 70.30198493 W 149.08988957 5356.06 63.96 354.61 4893.98 4975.50 1107.02 1221.48 1144.11 1098.80 318.78 3.98 5960939.46 612351.45 N 70.30221845 W 149.08995324 5452.19 67.83 355.86 4933.24 5014.76 1194.22 1309.21 1226.45 1186.23 311.50 4.20 5961026.76 612342.88 N 70.30245729 W 149.09001212 5547.56 70.57 353.31 4967.10 5048.62 1282.70 1398.35 1310.49 1274.97 303.07 3.81 5961115.35 612333.12 N 70.30269972 W 149.09008036 5644.19 74.80 352.64 4995.86 5077.38 1373.89 1490.58 1397.31 1366.50 291.79 4.43 5961206.70 612320.48 N 70.30294979 W 149.09017174 5740.37 78.60 352.06 5017.98 5099.50 1466.27 1584.16 1485.74 1459.25 279.33 3.99 5961299.25 612306.63 N 70.30320317 W 149.09027264 5784.72 79.18 352.27 5026.52 5108.04 1509.21 1627.68 1527.04 1502.36 273.39 1.39 5961342.26 612300.06 N 70.30332095 W 149.09032068 SurveyEditor Ver SP 2.1 Bld( doc40x_100) VV-204\W-204\W-204PB1\W-204P61 Generated 3/28/2007 10:56 AM Page 2 of 5 Comments Measured Inclination Azimuth SutrSea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure tt de de ft ft ft ft n n » de 00 ft ftUS ftUS JLSJL.IY /`J.I/ JJI.JJ JVJ`J.CV JILV./G 10/4.JL IOy3.yJ 1.7yU.VL IJO/.~O GOJ. ~.7 I.J4 Jy014U/./V OIGG05.04 IV lV.JVJ.7VV IJ VY 147.V5VJy/IG 5884.77 80.91 353.43 5044.83 5126.35 1606.20 1726.04 1620.70 1599.76 259.71 8.25 5961439.43 612284.92 N 70.30358703 W 149.09043151 5915.90 83.81 356.83 5048.97 5130.49 1636.85 1756.89 1650.64 1630.49 257.09 14.28 5961470.12 612281.85 N 70.30367100 W 149.09045269 5947.89 87.60 359.85 5051.37 5132.89 1668.69 1788.78 1681.99 1662.37 256.17 15.13 5961501.98 612280.45 N 70.30375809 W 149.09046014 5979.87 90.41 1.05 5051.92 5133.44 1700.66 1820.76 1713.64 1694.34 256.42 9.55 5961533.95 612280.23 N 70.30384543 W 149.09045810 6011.05 90.24 0.95 5051.75 5133.27 1731.84 1851.93 1744.55 1725.52 256.96 0.63 5961565.12 612280.31 N 70.30393059 W 149.09045368 6043.52 90.07 0.59 5051.66 5133.18 1764.30 1884.40 1776.73 1757.98 257.40 1.23 5961597.59 612280.26 N 70.30401929 W 149.09045014 6075.77 91.13 0.10 5051.32 5132.84 1796.54 1916.65 1808.67 1790.23 257.59 3.62 5961629.84 612279.97 N 70.30410739 W 149.09044856 6106.71 91.48 359.56 5050.62 5132.14 1827.46 1947.58 1839.28 1821.16 257.50 2.08 5961660.76 612279.42 N 70.30419189 W 149.09044929 6139.23 91.27 359.59 5049.84 5131.36 1859.95 1980.09 1871.44 1853.67 257.26 0.65 5961693.26 612278.69 N 70.30428070 W 149.09045124 6171.34 91.41 357.82 5049.08 5130.60 1892.01 2012.20 1903.13 1885.76 256.54 5.53 5961725.33 612277.49 N 70.30436837 W 149.09045710 6202.66 91.41 356.13 5048.31 5129.83 1923.22 2043.51 1933.90 1917.03 254.88 5.39 5961756.57 612275.37 N 70.30445379 W 149.0904 6234.10 91.24 356.09 5047.59 5129.11 1954.51 2074.94 1964.71 1948.39 252.75 0.56 5961787.89 612272.77 N 70.30453946 W 149.09048774 6266.66 91.41 356.33 5046.83 5128.35 1986.92 2107.49 1996.66 1980.87 250.60 0.90 5961820.33 612270.14 N 70.30462820 W 149.09050516 6298.49 91.31 356.34 5046.08 5127.60 2018.61 2139.31 2027.92 2012.63 248.57 0.32 5961852.05 612267.63 N 70.30471495 W 149.09052163 6329.78 91.07 356.33 5045.43 5126.95 2049.77 2170.59 2058.66 2043.84 246.57 0.77 5961883.23 612265.16 N 70.30480024 W 149.09053782 6362.39 90.93 356.87 5044.86 5126.38 2082.25 2203.20 2090.75 2076.39 244.63 1.71 5961915.75 612262.75 N 70.30488916 W 149.09055347 6393.57 90.72 356.14 5044.41 5125.93 2113.30 2234.38 2121.44 2107.51 242.73 2.44 5961946.83 612260.38 N 70.30497417 W 149.09056886 6425.65 91.20 356.67 5043.87 5125.39 2145.25 2266.45 2153.02 2139.52 240.72 2.23 5961978.81 612257.89 N 70.30506162 W 149.09058514 6458.44 91.34 357.00 5043.15 5124.67 2177.92 2299.23 2185.35 2172.25 238.91 1.09 5962011.50 612255.60 N 70.30515105 W 149.09059979 6490.31 91.31 356.65 5042.41 5123.93 2209.68 2331.09 2216.79 2204.07 237.15 1.10 5962043.28 612253.36 N 70.30523796 W 149.09061408 6521.49 91.31 355.96 5041.70 5123.22 2240.72 2362.27 2247.51 2235.17 235.14 2.21 5962074.36 612250.89 N 70.30532294 W 149.09063034 6553.53 91.41 356.79 5040.94 5122.46 2272.62 2394.30 2279.09 2267.14 233.11 2.61 5962106.28 612248.38 N 70.30541027 W 149.09064674 6585.89 91.34 356.16 5040.16 5121.68 2304.84 2426.65 2311.02 2299.43 231.12 1.96 5962138.54 612245.91 N 70.30549848 W 149.09066284 6616.89 90.82 355.65 5039.58 5121.10 2335.68 2457.64 2341.56 2330.35 228.91 2.35 5962169.41 612243.24 N 70.30558294 W 149.09068076 6649.25 90.45 355.03 5039.22 5120.74 2367.85 2490.00 2373.41 2362.60 226.28 2.23 5962201.62 612240.13 N 70.30567104 W 149.09070205 6681.38 89.76 355.27 5039.16 5120.68 2399.78 2522.13 2405.02 2394.61 223.56 2.27 5962233.59 612236.94 N 70.30575851 W 149.09072404 6712.54 89.80 354.14 5039.28 5120.80 2430.72 2553.29 2435.66 2425.64 220.69 3.63 5962264.56 612233.60 N 70.30584327 W 149.09074733 6744.54 89.83 354.26 5039.38 5120.90 2462.46 2585.29 2467.08 2457.47 217.45 0.39 5962296.35 612229.89 N 70.30593024 W 149.09077 6776.95 88.94 355.03 5039.73 5121.25 2494.63 2617.70 2498.96 2489.74 214.43 3.63 5962328.56 612226.39 N 70.30601839 W 149.0907 6807.60 88.63 354.63 5040.38 5121.90 2525.06 2648.34 2529.13 2520.26 211.67 1.65 5962359.03 612223.17 N 70.30610176 W 149.09082 6840.03 88.56 354.61 5041.17 5122.69 2557.24 2680.76 2561.05 2552.53 208.63 0.22 5962391.26 612219.65 N 70.30618994 W 149.09084498 6872.28 91.00 354.86 5041.30 5122.82 2589.26 2713.01 2592.82 2584.65 205.67 7.61 5962423.32 612216.21 N 70.30627767 W 149.09086895 6903.82 92.58 355.86 5040.31 5121.83 2620.60 2744.53 2623.94 2616.07 203.12 5.93 5962454.69 612213.20 N 70.30636351 W 149.09088960 6935.88 92.88 355.26 5038.79 5120.31 2652.45 2776.55 2655.58 2647.99 200.64 2.09 5962486.58 612210.24 N 70.30645073 W 149.09090967 6968.34 92.82 355.29 5037.17 5118.69 2684.68 2808.97 2687.60 2680.30 197.97 0.21 5962518.84 612207.09 N 70.30653900 W 149.09093130 6999.62 92.78 355.60 5035.64 5117.16 2715.74 2840.22 2718.48 2711.45 195.49 1.00 5962549.94 612204.14 N 70.30662408 W 149.09095139 7032.19 91.82 353.94 5034.34 5115.86 2748.06 2872.76 2750.60 2743.85 192.52 5.88 5962582.30 612200.70 N 70.30671261 W 149.09097541 7064.82 91.21 352.84 5033.47 5114.99 2780.34 2905.38 2782.66 2776.25 188.77 3.85 5962614.64 612196.46 N 70.30680113 W 149.09100582 7095.97 92.20 352.86 5032.55 5114.07 2811.12 2936.52 2813.23 2807.15 184.89 3.18 5962645.47 612192.12 N 70.30688553 W 149.09103721 7128.29 92.44 353.31 5031.24 5112.76 2843.06 2968.81 2844.97 2839.21 181.00 1.58 5962677.46 612187.76 N 70.30697311 W 149.09106870 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204PB1\W-204P61 Generated 3/28/2007 10:56 AM Page 3 of 5 v Comments Measured Inclination Azimuth Subsea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure tt de de tt it n n ft ft tt de 00 ft ttUS ttUS 7161.01 92.33 353.28 5029.88 5111.40 2875.42 3001.50 2877.14 2871.67 7192.38 92.51 353.38 5028.55 5110.07 2906.44 3032.84 2907.99 2902.80 7224.12 92.51 353.57 5027.16 5108.68 2937.83 3064.55 2939.23 2934.31 7255.72 92.47 352.58 5025.79 5107.31 2969.06 3096.12 2970.30 2965.65 7286.94 92.51 353.17 5024.43 5105.95 2999.89 3127.31 3000.99 2996.60 7319.18 92.51 352.05 5023.02 5104,54 3031.71 3159.52 3032.66 3028.54 7351.58 92.44 352.31 5021.62 5103.14 3063.65 3191.89 3064.47 3060.61 7382.84 92.51 352.17 5020.27 5101.79 3094.47 3223.12 3095.17 3091.55 7415.20 92.61 352.51 5018.83 5100.35 3126.38 3255.45 3126.96 3123.59 7446.74 92.37 352.76 5017.46 5098.98 3157.51 3286.96 3158.00 3154.84 7477.95 92.51 352.87 5016.13 5097.65 3188.33 3318.14 3188.73 3185.78 7510.48 91.79 351.03 5014,91 5096.43 3220.38 3350.65 3220.70 3217.96 7542.32 91.34 348.22 5014.04 5095.56 3251.51 3382.48 3251.75 3249.27 7573.75 93.20 348.28 5012.79 5094.31 3282.08 3413.88 3282.23 3280.01 7580.00 93.66 348.27 5012.42 5093.94 3288.15 3420.12 3288.29 3286.12 7605.81 95.54 348.25 5010.35 5091.87 3313.18 3445.85 3313.27 3311.31 7637.70 95.09 349.50 5007.39 5088.91 3344.16 3477.60 3344.21 3342.47 7667.51 93.27 352.43 5005.22 5086.74 3373.38 3507.33 3373.40 3371.82 7697.36 92.07 354.76 5003.83 5085.35 3402.91 3537.14 3402.92 3401.45 7727.33 89.80 357.07 5003.34 5084.86 3432.73 3567.11 3432.73 3431.34 7757.75 86.92 358.19 5004.21 5085.73 3463.06 3597.51 3463.06 3461.72 7787.83 85.68 0.38 5006.15 5087.67 3493.05 3627.53 3493.05 3491.73 7813.86 85.75 3.28 5008.10 5089.62 3519.01 3653.49 3519.01 3517.67 7845.95 84.75 6.82 5010.76 5092.28 3550.92 3685.47 3550.92 3549.52 7878.33 81.81 7.95 5014.55 5096.07 3582.91 3717.62 3582.92 3581.41 7908.65 79.97 10.78 5019.35 5100.87 3612.56 3747.56 3612.58 3610.94 7937.95 79.38 13.32 5024.60 5106.12 3640.90 3776.38 3640.94 3639.13 7968.05 79.76 16.33 5030.05 5111.57 3669.71 3805.98 3669.79 3667.74 7997.89 80.47 19.81 5035.17 5116.69 3697.89 3835.38 3698.03 3695.68 8028.63 82.33 24.09 5039.77 5121.29 3726.37 3865.77 3726.61 3723.87 177.19 0.35 5962709.87 612183.46 N 70.30706181 W 149.09109961 173.55 0.66 5962740.93 612179.35 N 70.30714686 W 149.09112910 169.94 0.60 5962772.38 612175.28 N 70.30723292 W 149.09115828 166.14 3.13 5962803.66 612171.01 N 70.30731854 W 149.09118911 162.27 1.89 5962834.54 612166.68 N 70.30740309 W 149.09122045 158.13 153.72 149.50 145.20 141.16 137.26 132.70 126.97 120.58 119.31 114.08 107.95 103.28 99.96 97.82 96.56 96.19 97.02 99.83 103.96 108.83 114.85 122.42 131.54 142.90 3.47 5962866.41 612162.06 N 70.30749035 W 149.09125400 0.83 5962898.41 612157.18 N 70.30757796 W 149.09128967 0.50 5962929.29 612152.50 N 70.30766250 W 149.09132383 1.09 5962961.26 612147.72 N 70.30775003 W 149.09135873 1.10 5962992.44 612143.21 N 70.30783540 W 149.09139145 0.57 5963023.31 612138.85 N 70.30791992 W 149.0914 6.07 5963055.42 612133.82 N 70.30800785 W 149.0914 8.93 5963086.63 612127.62 N 70.30809337 W 149.09150634 5.92 5963117.28 612120.77 N 70.30817737 W 149.09155814 7.36 5963123.37 612119.41 N 70.30819405 W 149.09156841 7.28 5963148.47 4.15 5963179.53 11.55 5963208.81 8.77 5963238.39 10.81 5963268.23 10.16 5963298.59 8.35 5963328.59 11.11 5963354.54 11.43 5963386.42 9.72 5963418.36 11.03 5963447.97 8.76 5963476.24 9.92 5963504.96 11.73 5963533.03 15.04 5963561.38 612113.80 612107.21 612102.11 612098.34 612095.76 612094.05 612093.23 612093.67 612096.01 612099.67 612104.09 612109.69 612116.84 612125.53 612136.47 N 70.30826286 W 149.09161082 N 70.30834798 W 149.09166044 N 70.30842818 W 149.09169825 N 70.30850913 W 149.09172519 N 70.30859077 W 149.09174248 N 70.30867376 W 149.09175266 N 70.30875575 W 149.09175570 N 70.30882662 W 149.09174898 N 70.30891364 W 149.09172618 N 70.30900075 W 149.09169270 N 70.30908143 W 149.09165325 N 70.30915844 W 149.09160450 N 70.30923661 W 149.09154314 N 70.30931294 W 149.0914§ N 70.30938993 W 149.091 8058.28 85.13 27.06 5043.01 5124.53 3753.28 3895.24 3753. 67 3750.44 155.62 13.72 5963588.14 8087.28 86.75 30.28 5045.06 5126.58 3779.02 3924.17 3779. 62 3775.82 169.50 12.40 5963613.72 8116.77 87.09 33.71 5046.65 5128.17 3804.41 3953.62 3805. 30 3800.79 185.10 11.67 5963638.92 8147.63 86.64 35.80 5048.34 5129.86 3830.19 3984.43 3831. 47 3826.11 202.67 6.92 5963664.49 8178.33 87.26 37.40 5049.97 5131.49 3855.28 4015.09 3857. 05 3850.72 220.94 5.58 5963689.37 8207.74 88.50 40.54 5051.06 5132.58 3878.62 4044.48 3880. 96 3873.56 239.43 11.47 5963712.48 8238.28 88.74 42.95 5051.79 5133.31 3901.94 4075.01 3904. 99 3896.34 259.75 7.93 5963735.56 8268.28 88.84 45.73 5052.43 5133.95 3923.95 4105.00 3927. 83 3917.79 280.71 9.27 5963757.32 8298.15 88.60 49.30 5053.10 5134.62 3944.70 4134.86 3949. 58 3937.96 302.73 11.98 5963777.81 8327.72 89.01 53.28 5053.71 5135.23 3963.81 4164.43 3969. 83 3956.44 325.80 13.53 5963796.63 612148.80 612162.29 612177.52 612194.70 612212.61 612230.74 612250.73 612271.36 612293.08 612315.86 N 70.30946254 W 149.09127414 N 70.30953187 W 149.09116171 N 70.30960008 W 149.09103532 N 70.30966924 W 149.09089300 N 70.30973647 W 149.09074491 N 70.30979889 W 149.09059517 N 70.30986111 W 149.09043048 N 70.30991971 W 149.09026065 N 70.30997480 W 149.09008225 N 70.31002529 W 149.08989538 SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204P61\W-204P81 Generated 3/28/2007 10:56 AM Page 4 of 5 Comments Measured Inclination Azimuth Sub-Sea ND ND Vertical Along Hole Closure NS EW DLS Northing Easting Latitude Longitude Depth Section Departure tt de de tt ft tt tt tt it ft de 00 tt ftUS ftUS tS~b/.45 titS.bU 55.44 SUb4.;iEi bl:ib.tit5 :iytil.// 41y4.1b :iytiy.l4 3y/3./ti :i4y.yb /.4ti by(i:it514.:i1 8388.68 88.22 58.39 5055.25 5136.77 3999.51 4225.37 4008.48 3990.80 376.10 9.48 5963831.73 8420.73 88.84 59.78 5056.07 5137.59 4016.71 4257.41 4027.53 4007.26 403.59 4.75 5963848.60 8453.38 90.97 62.45 5056.13 5137.65 4033.25 4290.05 4046.17 4023.03 432.17 10.46 5963864.79 8484.73 91.11 62.85 5055.56 5137.08 4048.39 4321.40 4063.55 4037.43 460.01 1.35 5963879.60 8516.48 91.28 63.46 5054.90 5136.42 4063.49 4353.14 4081.09 4051.76 488.34 1.99 5963894.36 8548.89 91.31 65.22 5054.17 5135.69 4078.30 4385.54 4098.60 4065.79 517.54 5.43 5963908.82 8580.47 91.79 69.62 5053.31 5134.83 4091.21 4417.11 4114.39 4077.91 546.68 14.01 5963921.37 8613.13 91.55 72.00 5052.36 5133.88 4102.77 4449.76 4129.23 4088.64 577.51 7.32 5963932.56 8644.76 93.03 73.27 5051.09 5132.61 4113.01 4481.36 4142.88 4098.07 607.67 6.16 5963942.44 8675.90 92.99 75.33 5049.46 5130.98 4122.23 4512.46 4155.69 4106.49 637.61 6.61 5963951.30 8708.26 93.20 77.03 5047.71 5129.23 4130.80 4544.77 4168.24 4114.21 668.99 5.29 5963959.48 8740.24 96.78 78.57 5044.93 5126.45 4138.37 4576.63 4179.99 4120.94 700.12 12.18 5963966.68 8770.81 99.49 79.36 5040.61 5122.13 4144.96 4606.88 4190.77 4126.73 729.82 9.23 5963972.91 8802.91 99.42 79.70 5035.33 5116.85 4151.56 4638.55 4201.96 4132.49 760.96 1.07 5963979.13 8835.04 101.48 79.42 5029.50 5111.02 4158.12 4670.14 4213.32 4138.21 792.03 6.47 5963985.32 Last MWD+IFR+MS 8873.00 101.66 80.12 5021.89 5103.41 4165.71 4707.33 4226.83 4144.82 828.63 1.87 5963992.47 TD (Projected) 8930.00 101.66 80.12 5010.37 5091.89 4176.78 4763.16 4247.33 4154.39 883.62 0.00 5964002.86 Survey Type: Definitive Survey NOTES: GYD CT DMS - (Gyrodata - cont. dri llpipe m/s -- Gyrodata pump-down multishot surveys with continuous tool (RGS-CT) in drill-pipe.) MWD +IFR + MS - (In-field referenced MWD with mull-station analysis and correction applied in post-processing. Assumes a BHA sag correction is appl ied to enhance inclination accuracy. ) Leoal Descriation: Northing (Y) [ftUS] Easting (X) [ftUS] Surface : 4859 FSL 1177 FEL S21 T11 N R12E UM 5959836.12 612049.12 BHL : 3733 FSL 284 FEL S16 T1 1 N R12E UM 5964002.86 612870.63 (ilL:i:iy. /5 N /U.:il VU/2EiU W 14yAti5tiy96t3 612365.65 N 70.31011915 W 149.08948778 612392.88 N 70.31016411 W 149.08926507 612421.23 N 70.31020719 W 149.08903348 612448.85 N 70.31024653 W 149.08880790 612476.95 N 70.31028568 W 149.08857842 612505.94 N 70.31032401 W 149.08834180 612534.89 N 70.31035711 W 149.08810569 612565.56 N 70.31038641 W 149.08785589 612595.57 N 70.31041218 W 149.08761150 612625.38 N 70.31043516 W 149.08736895 612656.63 N 70.31045623 W 149.0871 612687.66 N 70.31047462 W 149.0868 612717.27 N 70.31049044 W 149.08662185 612748.31 N 70.31050615 W 149.08636957 612779.29 N 70.31052178 W 149.08611781 612815.78 N 70.31053981 W 149.08582129 612870.63 N 70.31056596 W 149.08537569 J SurveyEditor Ver SP 2.1 Bld( doc40x_100) W-204\W-204\W-204P61\W-204PB1 Generated 3/28/2007 10:56 AM Page 5 of 5 ~`i REE = FMC 4-1 /8" SM WELLHEAD = FMC GEN 5 ACTUATOR = Hydraulic KB. ELEV = 81.52' BF. ELEV = 53.69' KOP = 2357' Max Angle=L1 100 @ 6899 Datum MD = xxxx' DatumTVD= xxxx' SS 110 3/4" CSG., 45.5# L-80, .0 4.5"Phoenix Discharge Ressure sub, ID = 3.948" 5211' ~ 4.5" Phoenix CST-1 Jet Pump Gauge, ID = 3.994" 5243' RA TAG 5317' ~ Seal Bore Extension, ID = 5.75" 5326'~5337' 7-5/8" x 5.5" BKR ZXP PACKER, ID = 4.82" 5337' L2 BKR HUGHES HOOK HGR, ID = 5.62" 5361' Minimum ID = 3.688" @ 5363', & 5525' - LEM's Seal Bore Extension, ID = 5.75" 5468'-5479' 7-518" x 5.5" BKR ZXP PACKER, ID = 4.82" 5479' Seal Assembly from LEM#2 5496' L2 BKR HUGHES HOOK HGR, ID = 5.62" 5523' W-204 W-204 L1 W-204 L2 L20" CONDUCTOR ~ 110' 962 bpf, ID= 9.95" 3338' RA TAG 5479' I 5561' I Seal Bore Extension, ID = 5.75" 5607'-5618' 7-5/8" x 5.5" BKR ZXP PACKER, ID = 4.82" 5618' 7 5/8" x 5.5" BKR HMC Liner Hanger ID= 4.80" 5624' Seal Assembly from LEM#1 5639' 7 5/8" CSG, 29.7# L-80 BTC, .0459 bpf, ID=6.875 H 5847' co„u 4.5" 12.6# L-80 BTC Slotted (3.958" ID) 5866'-7414' 4.5" x 6.4" Swell Packer 3.9" ID - OBd 7424'-7444' 4.5" x 6.4" Swell Packer 3.9" ID - OBd 8005'-8024' 4.5" 12.6# L-80 BTC Slotted (3.958" ID) 8034'-9680' 4.5" x 6.4" Sw elf Packer 3.9" ID - OBd 9690'-9710' 4.5" x 6.4" Swell Packer 3.9" ID - OBd 10105'-10125' 4.5" 12.6# L-80 BTC Slotted (3.958" ID) 10135'-12628' 4.5" 12.6# L-80 BTC-Slotted xIBT-Solid Liner Shoe - (PBTD 12628') OBd W-204 12628' As-Drilled Completion ( DRLG DRAFT GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 2519 2518 6 KBG-2 DMY SBK-2 1" 02/28/07 3 3509 3484 15 KBG-2 DMY SBK-2 1" 02/28/07 2 4865 4694 46 KBG-2 DMY SBK-2 1" 02/28/07 1 5102 4845 55 KBG-2 DCK BEK 1" 02/28/07 5221' 4.5" Baker CMD-BX Sliding Sleeve, 3.812" ID 5266' 7.625" x 4.5" Premier Packer 3.87" ID 5292' 4.5" HES X nipple W/ RHGM Plug, ID 3.813" 5313' 4.5" HES X nipple, ID 3.813" 5341' 4.5" Half Muleshoe stung into linertop packet 1384' Hook Hanger below window - 3.99" ID 1450' 4.5" x 6.4" Swell Packer 3.9" ID-L2-OBa 1322' 4.5" x 6.4" Swell Packer 3.9" ID-L2-OBa '369' 4.5" L-80 12.6# IBT Slotted Liner 3.958" ID L2-O '408' 4.5" x 6.4" Swell Packer 3.9" ID-L2-OBa '901' 4.5" x 6.4" Swell Packer 3.9" ID-L2-OBa 0399' 4.5" L-80 12.6# IBT Slotted Liner 3.958" ID L2-O 0524' 4.5" L-80 12.6# BTC Slotted Liner 3.958" ID L2-( 0554' 4.5" x 6.4" Swell Packer 3.9" ID-L2-OBa 100T 4.5" x 6.4" Swell Packer 3.9" ID-L2-OBa .2716'1 14.5" L-80 12.6# BTC Slotted Liner 3.958" ID L2-( i_, (~4.5" 12.6# L-80 BTC/IBT-Slotted xIBT-Solid Line ~ _JI Shoe - (PBTD 12,758') L2-OBa W-204 ID 3.958" ---- r~----~~- 5540'-5547' Hook Hanger below window - 3.99" ID 5575'-5594' 4.5" x 6.4" Swell Packer 3.9" ID-L1-OBc 6015'-7410' 4.5" L-80 12.6# BTC Slotted Liner 3.958" ID L1-OBc 7421'-7440' 4.5" x 6.4" Swell Packer 3.9" ID-L1-OBc 7795'-7814' 4.5" x 6.4" Swell Packer 3.9" ID-L1-OBc 7824'-10389' 4.5" L-80 12.6# BTC Slotted Liner 3.958" ID L1-OBc 10399'-10418' 4.5" x 6.4" Swell Packer 3.9" ID-L1-OBc 10774'-10793' 4.5" x 6.4" Swell Packer 3.9" ID-L1-OBc 10803'-12656' 4.5" L-SO 12.6# BTC Slotted Liner 3.958" ID L1-OBc 12702' 4.5" 12.6# L-80 BTGSlotted x IBT-Solid Liner Shoe - (PBTD 12,702') L1-OBc W-204 DATE REV BY COMMENTS DATE REV BY COMMENTS 03/02/07 MJM Original Completion (from drilling) POLARIS UNIT WELL: W-204, L1, L2 PERMfr No: 206-158, 159, 160 API No: 50-029-23333 SEC 21, T11N, R12E, 4,859' FSL 8 1,176' FEL BP 6cploration (Alaska) G i `ter °a SCHLUMBERGER Survey report Client ...................: Field ....................: well .....................: API number ...............: Engineer .................. Rig :...................... STATE :...................: ----- Survey calculation m Method for positions.....: Method for DLS...........: BP Exploration (Alaska) Inc. Polaris W-204PB1 50-029-23333-70 F.Medina Nabors 7ES Alaska ethods------------- Minimum curvature Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: Mean Sea Level Depth reference..........: Driller's Pipe Tally GL above permanent.......: 52.60 ft KB above permanent.......: N/A Top Drive DF above permanent.......: 81.52 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+E/W-)........: -999.25 ft Azimuth from Vsect Origin to target: 0.00 degrees 1-Feb-2007 10:15:09 Page 1 of 7 Spud date ................: O1-Jan-07 Last survey date.........: 24-Jan-07 Total accepted surveys...: 163 MD of first survey.......: 0.00 ft MD of last survey........: 8930.00 ft ----- Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2006 Magnetic date............: 11-Jan-2007 Magnetic field strength..: 57637.62 GAMA Magnetic dec (+E/W-).....: 23.89 degrees Magnetic dip .............:. 80.89 degrees ----- MWD survey Reference Reference G ..............: Reference H ............... Reference Dip ............: Tolerance of G...........: Tolerance of H............ Tolerance of Dip.........: Criteria --------- 1002.68 meal 57637.50 LAMA 80.89 degrees (+/-) 2.50 meal (+/-)300.00 GAMA (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 23.89 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 23.89 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction u SCHLUMBERGER Survey Report 1-Feb-2007 10:15:09 Page 2 of 7 ___ Seq ________ Measured ______ Incl _______ Azimuth ______ Course ________ TVD ________ Vertical _________ Displ ___ Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (f t) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 1 0.00 0 00 0 00 0.00 0 00 0 00 0.00 0.00 0.00 0.00 0.00 TIP None 2 100.00 0.34 149.95 100.00 100.00 -0.26 -0.26 0.15 0.30 149.95 0.34 BP_ GYD CT DMS 3 169.00 0.40 143.89 69.00 169.00 -0.63 -0.63 0.39 0.74 147.98 0.10 BP_ GYD CT DMS 4 200.00 0.69 151.96 31.00 200.00 -0.88 -0.88 0.54 1.04 148.27 0.97 BP_ GYD CT DMS 5 258.00 0.85 159.49 58.00 257.99 -1.59 -1.59 0.86 1.81 151.64 0.33 BP_ GYD CT DMS 6 300.00 0.77 147.72 42.00 299.99 -2.12 -2.12 1.12 2.40 152.19 0.44 BP_ GYD CT DMS 7 400.00 0.98 146.00 100.00 399.98 -3.40 -3.40 1.96 3.92 150.08 0.21 BP_ GYD CT DMS 8 500.00 0.83 147.45 100.00 499.96 -4.72 -4.72 2.82 5.50 149.10 0.15 BP_ GYD CT DMS 9 600.00 0.99 142.21 100.00 599.95 -6.01 -6.01 3.74 7.08 148.09 0.18 BP_ GYD CT nMS 10 700.00 0.83 150.26 100.00 699.94 -7.32 -7.32 4.63 8.67 147.69 0.20 BP_ GYD CT DMS 11 797.00 0.24 143.69 97.00 796.93 -8.10 -8.10 5.10 9.57 147.79 0.61 BP_ GYD CT DMS 12 922.98 0.37 318.09 125.98 922.91 -8.01 -8.01 4.99 9.43 148.09 0.48 BP_ MWD+IFR+MS 13 1018.61 0.79 323.25 95.63 1018.54 -7.25 -7.25 4.38 8.47 148.83 0.44 BP_ MWD+IFR+MS 14 1114.01 0.73 329.39 95.40 1113.93 -6.20 -6.20 3.68 7.21 149.29 0.11 BP_ MWD+IFR+MS 15 1210.23 0.90 353.85 96.22 1210.14 -4.92 -4.92 3.29 5.92 146.24 0.40 BP_ MWD+IFR+MS 16 1303.82 1.01 342.17 93.59 1303.72 -3.40 -3.40 2.96 4.51 139.02 0.24 BP _MWD+IFR+MS 17 1399.07 1.25 356.69 95.25 1398.95 -1.57 -1.57 2.64 3.07 120.71 0.39 BP _MWD+IFR+MS 18 1495.44 1.09 355.76 96.37 1495.30 0.40 0.40 2.51 2.54 81.05 0.17 BP _MWD+IFR+MS 19 1592.28 1.20 356.89 96.84 1592.12 2.33 2.33 2.39 3.33 45.75 0.12 BP _MWD+IFR+MS 20 1687.44 0.79 330.62 95.16 1687.26 3.89 3.89 2.01 4.38 27.34 0.63 BP _MWD+IFR+MS 21 1781.85 0.83 352.86 94.41 1781.66 5.14 5.14 1.61 5.38 17.38 0.33 BP _MWD+IFR+MS 22 1877.80 1.13 2.11 95.95 1877.60 6.77 6.77 1.56 6.95 12.94 0.35 BP _MWD+IFR+MS 23 1973.78 0.96 2.84 95.98 1973.56 8.52 8.52 1.63 8.68 10.84 0.18 BP _MWD+IFR+MS 24 2070.10 1.04 344.92 96.32 2069.87 10.17 10.17 1.44 10.27 8.08 0.33 BP _MWD+IFR+MS 25 2165.30 0.84 345.68 95.20 2165.06 11.68 11.68 1.05 11.73 5.13 0.21 BP _MWD+IFR+MS 26 2261.77 0.83 345.85 96.47 2261.52 13.05 13.05 0.71 13.07 3.10 0.01 BP _MWD+IFR+MS 27 2357.09 2.40 32.53 95.32 2356.80 15.40 15.40 1.61 15.48 5.97 2.02 BP _MWD+IFR+MS 28 2452.78 4.50 42.73 95.69 2452.31 19.85 19.85 5.24 20.53 14.78 2.28 BP _MWD+IFR+MS 29 2547.41 6.89 52.37 94.63 2546.47 26.04 26.04 12.25 28.78 25.20 2.71 BP _MWD+IFR+MS 30 2643.42 9.03 49.85 96.01 2641.55 34.42 34.42 22.57 41.16 33.26 2.26 BP _MWD+IFR+MS • SCHLUMBERGER Survey Report 1-Feb-2007 10:15:09 Page 3 of 7 Seq Measured Incl Azimuth Course -------- TVD -------- Vertical -------- Displ -------- Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- dis 1 P Azim (de / g tool Corr - (ft) (deg) (deg) (ft) (f t) (f t) (ft) (ft) (f t) (deg) 100f) type (deg) 31 2737 28 11.06 47 21 93.86 2733.97 45.28 45 28 34.81 57.12 37.55 2.22 BP_ MWD+IFR+MS 32 2833.00 11.65 39.14 95.72 2827.82 59.02 59.02 47.65 75.85 38.92 1.77 BP_ MWD+IFR+MS 33 2928.85 11.95 38.20 95.85 2921.64 74.32 74.32 59.89 95.45 38.87 0.37 BP_ MWD+IFR+MS 34 3024.05 12.13 38.62 95.20 3014.75 89.88 89.68 72.23 115.31 38.79 0.21 BP_ MWD+IFR+MS 35 3119.93 12.90 38.76 95.88 3108.35 106.10 106.10 85.22 136.08 38.77 0.80 BP_ MWD+IFR+MS 36 3215.85 14.63 39.24 95.92 3201.51 123.83 123.83 99.59 158.91 38.81 1.81 BP_ MWD+IFR+MS 37 3288.00 15.06 39.22 72.15 3271.25 138.15 138.15 111.28 177.39 38.85 0.60 BP_ MWD+IFR+MS 38 3348.85 14.91 40.15 60.85 3330.03 150.26 150.26 121.32 193.12 38.92 0.47 BP_ MWD+IFR+MS ' 39 3443.74 14.78 40.00 94.89 3421.76 168.86 168.86 136.98 217.43 39.05 0.14 BP_ MWD+IFR+ MS 40 3538.42 14.72 39.49 94.68 3513.32 187.39 187.39 152.39 241.53 39.12 0.15 BP_ MWD+IFR+MS 41 3635.18 14.59 40.18 96.76 3606.93 206.19 206.19 168.07 266.01 39.18 0.22 BP_ MWD+IFR+MS 42 3730.28 14.66 40.00 95.10 3698.95 224.56 224.56 183.53 290.02 39.26 0.09 BP_ MWD+IFR+MS 43 3827.95 14.84 39.73 97.67 3793.40 243.65 243.65 199.47 314.89 39.31 0.20 BP _MWD+IFR+MS 44 3922.15 15.04 40.21 94.20 3884.41 262.26 262.26 215.07 339.17 39.35 0.25 BP _MWD+IFR+MS 45 4019.84 18.04 36.19 97.69 3978.05 284.15 284.15 232.19 366.95 39.25 3.29 BP _MWD+IFR+MS 46 4116.03 20.06 31.99 96.19 4068.98 310.17 310.17 249.73 398.21 38.84 2.54 BP _MWD+IFR+MS 47 4211.01 24.15 26.12 94.98 4156.97 341.45 341.45 266.92 433.40 38.02 4.89 BP _MWD+IFR+MS 48 4306.19 26.17 20.20 95.18 4243.13 378.64 378.64 282.74 472.56 36.75 3.39 BP _MWD+IFR+MS 49 4401.96 28.84 12.94 95.77 4328.09 420.99 420.99 295.21 514.18 35.04 4.47 BP _MWD+IFR+MS 50 4497.91 32.29 10.05 95.95 4410.70 468.79 468.79 304.87 559.21 33.04 3.91 BP _MWD+IFR+MS 51 4592.34 35.80 6.99 94.43 4488.94 521.06 521.06 312.64 607.66 30.96 4.14 BP _MWD+IFR+MS 52 4688.49 39.68 4.99 96.15 4564.96 579.58 579.58 318.73 661.44 28.81 4.23 BP _MWD+IFR+MS 53 4784.39 43.38 3.68 95.90 4636.74 642.97 642.97 323.51 719.77 26.71 3.96 BP _MWD+IFR+MS 54 4880.69 46.09 3.09 96.30 4705.14 710.62 710.62 327.50 762.46 24.74 2.85 BP _MWD+IFR+MS 55 4973.34 50.11 2.26 92.65 4767.00 779.49 779.49 330.71 846.75 22.99 4.39 BP _MWD+IFR+MS 56 5074.06 54.17 1.15 100.72 4828.81 858.96 858.96 333.05 921.27 21.19 4.12 BP _MWD+IFR+MS 57 5163.32 56.40 357.44 89.26 4879.65 932.30 932.30 332.12 989.69 19.61 4.23 BP _MWD+IFR+MS 58 5258.85 60.10 354.88 95.53 4929.92 1013.32 1013.32 326.64 1064.67 17.87 4.49 BP _MWD+IFR+MS 59 5356.06 63.96 354.61 97.21 4975.50 1098.80 1098.80 318.78 1144.11 16.18 3.98 BP _MWD+IFR+MS 60 5452.19 67.83 355.86 96.13 5014.75 1186.23 1186.23 311.50 1226.45 14.71 4.20 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 1-Feb-2007 10:15:09 Page 4 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total l i At im A DLS (de / Srvy Tool tool Corr # depth angle angle length depth section +N/S- f +E/W- (ft) sp d (ft) z (deg) g 100f) t ype (deg) - (ft) (deg) (deg) (ft) (ft) (ft) t) ( 61 56 5547 70 57 353 31 95.37 5048 62 1274.97 1274.97 303.07 1310 49 13.37 3.81 BP_ BP MWD+IFR+MS MWD+IFR+MS 62 . 5644.19 74.80 352.64 96.63 5077.38 1366.50 1366.50 291.79 1397.31 12.05 4.43 3 99 _ BP MWD+IFR+MS 63 5740.37 78.60 352.06 96.18 5099.50 1459.25 1459.25 279.33 1485.74 10.84 31 10 . 39 1 _ BP MWD+IFR+MS 64 5784.72 79.18 352.27 44.35 5108.04 1502.36 1502.36 273.39 1527.04 2 . 56 9 . 34 1 _ BP MWD+IFR+'MS 65 5852.19 79.17 351.35 67.47 5120.72 1567.96 1567.96 263.95 1590.0 . . _ 77 5884 91 80 353.43 32.58 5126.35 1599.76 1599.76 259.71 1620.70 9.22 8.25 BP_ MWD+IFR+MS 66 . . 81 83 83 356 31.13 5130.49 1630.49 1630.49 257.09 1650.64 8.96 14.28 BP_ MWD+IFR+MS 67 5915.90 . . 85 359 99 31 5132.89 1662.37 1662.37 256.17 1681.99 8.76 15.13 BP_ MWD+IFR+MS 68 5947.89 87.60 . 05 1 . 98 31 5133.44 1694.34 1694.34 256.42 1713.64 8.61 9.55 BP_ MWD+IFR+'MS 69 5979.87 90.41 . 95 0 . 18 31 5133.27 1725.52 1725.52 256.96 1744.55 8.47 0.63 BP_ MWD+IFR+MS 70 6011.05 90.24 . . 2 07 90 59 0 32.47 5133.18 1757.98 1757.98 257.40 1776.73 8.33 1.23 BP_ MWD+IFR+MS 71 6043.5 . . 10 0 25 32 5132.84 1790.23 1790.23 257.59 1808.67 8.19 3.62 BP_ MWD+IFR+MS 72 6075.77 91.13 8 . 56 359 . 94 30 5132.14 1821.16 1821.16 257.50 1839.28 8.05 2.08 BP_ MWD+IFR+MS 73 6106.71 91.4 . 59 359 . 52 32 5131.35 1853.67 1853.67 257.26 1871.44 7.90 0.65 BP_ MWD+IFR+MS 74 6139.23 91.27 . 82 357 . 11 32 5130.60 1885.76 1885.76 256.54 1903.13 7.75 5.53 BP_ MWD+IFR+MS 75 6171.34 91.41 . . 6 66 6202 41 91 356.13 31.32 5129.83 1917.03 1917.03 254.88 1933.90 7.57 5.39 BP_ MWD+IFR+MS 7 . 10 6234 . 24 91 356.09 31.44 5129.11 1948.39 1948.39 252.75 1964.71 7.39 0.56 BP_ MWD+IFR+MS 77 . 66 6266 . 41 91 356.33 32.56 5128.35 1980.87 1980.87 250.60 1996.66 7.21 0.90 BP_ MWD+IFR+MS 78 . 49 6298 . 31 91 356.34 31.83 5127.60 2012.63 2012.63 248.57 2027.92 7.04 0.32 BP_ MWD+IFR+MS 79 . . 07 91 33 356 31.29 5126.95 2043.84 2043.84 246.57 2058.66 6.88 0.77 BP_ MWD+IFR+MS 80 6329.78 . . 39 6362 93 90 356.87 32.61 5126.38 2076.39 2076.39 244.63 2090.75 6.72 1.71 BP _MWD+IFR+MS 81 . . 72 90 14 356 31.18 5125.93 2107.51 2107.51 242.73 2121.44 6.57 2.44 BP _MWD+IFR+MS 82 6393.57 . 20 91 . 67 356 32.08 5125.39 2139.52 2139.52 240.72 2153.02 6.42 2.23 BP _MWD+IFR+MS 83 6425.65 4 . 34 91 . 00 357 32.79 5124.67 2172.25 2172.25 238.91 2185.35 6.28 1.09 BP _MWD+IFR+MS 84 6458.4 . 31 91 . 65 356 31.87 5123.93 2204.07 2204.07 237.15 2216.79 6.14 1.10 BP _MWD+IFR+MS 85 6490.31 . . i 49 6521 31 91 355.96 31.18 5123.22 2235.17 2235.17 235.14 2247.51 6.01 2.21 BP _MWD+IFR+MS 86 . 53 6553 . 41 91 356.79 32.04 5122.46 2267.14 2267.14 233.11 2279.09 5.87 2.61 BP _MWD+IFR+MS 87 8 . 89 6585 . 34 91 356.16 32.36 5121.68 2299.43 2299.43 231.12 2311.02 5.74 1.96 BP _MWD+IFR+MS 8 . 89 6616 . 82 90 355.65 31.00 5121.10 2330.34 2330.34 228.91 2341.56 5.61 2.35 BP _MWD+IFR+MS 89 . . 45 0 03 355 36 32 5120.74 2362.60 2362.60 226.28 2373.41 5.47 2.23 BP _MWD+IFR+MS 90 6649.25 . 9 . . SCHLUMBERGER Survey Report 1-Feb-2007 10:15:09 Page 5 of 7 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (f t) (f t) (ft) (deg) 100f) type (deg) 91 6681 38 89 76 355 27 32 13 5120 68 2394 61 2394 61 223 56 2405.02 5.33 2.27 BP_ MWD+IFR+MS 92 6712.54 89.80 354.14 31.16 5120.80 2425.64 2425.64 220.69 2435.65 5.20 .3.63 BP_ MWD+IFR+MS 93 6744.54 89.83 354.26 32.00 5120.90 245.7.47 2457.47 217.45 2467.07 5.06 0.39 BP_ MWD+IFR+MS 94 6776.95 88.94 355.03 32.41 5121.25 2489.74 2489.74 214.43 2498.96 4.92 3.63 BP_ MWD+IFR+MS 95 6807.60 88.63 354.63 30.65 5121.90 2520.26 2520.26 211.67 2529.13 4.80 1.65 BP_ MWD+IFR+MS 96 6840.03 88.56 354.61 32.43 5122.69 2552.53 2552.53 208.63 2561.05 4.67 0.22 BP_ MWD+IFR+MS 97 6872.28 91.00 354.86 32.25 5122.82 2584.65 2584.65 205.67 2592.82 4.55 7.61 BP_ MWD+IFR+MS 98 6903.82 92.58 355.86 31.54 5121.83 2616.07 2616.07 203.12 2623.94 4.44 5.93 BP_ MWD+IFR+MS 99 6935.88 92.88 355.26 32.06 5120.31 2647.99 2647.99 200.64 2655.58 4.33 2.09 BP_ MWD+IFR+MS 100 6968.34 92.82 355.29 32.46 5118.69 2680.30 2680.30 197.97 2687.60 4.22 0.21 BP_ MWD+IFR+MS 101 62 6999 92.78 355.60 31.28 5117.16 2711.45 2711.45 195.49 2718.48 4.12 1.00 BP_ MWD+IFR+MS 102 . 7032 19 .91.82 353.94 32.57 5115.86 2743.85 2743.85 192.52 2750.60 4.01 5.88 BP_ MWD+IFR+MS 103 . 7064.82 91.21 352.84 32.63 5114.99 2776.25 2776.25 188.77 2782.66 3.89 3.85 BP_ MWD+IFR+MS 104 7095.97 92.20 352.86 31.15 5114.07 2807.15 2807.15 184.89 2813.23 3.77 3.18 BP_ MWD+IFR+MS 105 7128.29 92.44 353.31 32.32 5112.76 2839.21 2839.21 181.00 2844.97 3.65 1.58 BP_ MWD+IFR+MS 106 7161.01 92.33 353.28 32.72 5111.40 2871.67 2871.67 177.19 2877.14 3.53 0.35 BP _MWD+IFR+MS 107 7192.38 92.51 353.38 31.37 5110.07 2902.80 2902.80 173.55 2907.99 3.42 0.66 BP _MWD+IFR+MS 108 7224.12 92.51 353.57 31.74 5108.68 2934.31 2934.31 169.94 2939.23 3.31 0.60 BP _MWD+IFR+MS 109 7255.72 92.47 352.58 31.60 5107.31 2965.65 2965.65 166.14 2970.30 3.21 3.13 BP _MWD+IFR+MS 110 7286.94 92.51 353.17 31.22 5105.95 2996.60 2996.60 162.27 3000.99 3.10 1.89 BP _MWD+IFR+MS 111 18 7319 92.51 352.05 32.24 5104.54 3028.54 3028.54 158.13 3032.66 2.99 3.47 BP _MWD+IFR+MS 112 . 7351.58 92.44 352.31 32.40 5103.14 3060.61 3060.61 153.72 3064.46 2.88 0.83 BP _MWD+IFR+MS 113 7382.84 92.51 352.17 31.26 5101.79 3091.55 3091.55 149.50 3095.16 2.77 0.50 BP _MWD+IFR+MS 114 7415.20 92.61 352.51 32.36 5100.35 3123.59 3123.59 145.20 3126.96 2.66 1.09 BP _MWD+IFR+MS 115 7446.74 92.37 352.76 31.54 5098.98 3154.84 3154.84 141.16 3158.00 2.56 1.10 BP _MWD+IFR+MS 116 7477.95 92.51 352.87 31.21 5097.65 3185.78 3185.78 137.26 3188.73 2.47 0.57 BP _MWD+IFR+MS 117 7510.48 91.79 351.03 32.53 5096.43 3217.96 3217.96 132.70 3220.70 2.36 6.07 BP _MWD+IFR+MS 118 7542.32 91.34 348.22 31.84 5095.56 3249.27 3249.27 126.97 3251.75 2.24 8.93 BP _MWD+IFR+MS 119 7573.75 93.20 348.28 31.43 5094.31 3280.01 3280.01 120.58 3282.23 2.11 5.92 BP _MWD+IFR+MS 120 7580.00 93.66 348.27 6.25 5093.94 3286.12 3286.12 119.31 3288.29 2.08 7.36 BP _MWD+IFR+MS i SCHLUMBERGER Survey Report 1-Feb-2007 10:15:09 Page 6 of 7 Seq Measured _ Incl Azimuth Course TVD -------- Vertical -------- Displ -------- Displ ----p--- Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- dis 1 Azim g (de / t ool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 121 7605 81 95 54 348 25 25 81 5091.87 3311.31 3311.31 114.08 3313.27 1.97 7.28 BP_ MWD+IFR+MS 122 7637.70 95.09 349.50 31.89 5088.91 3342.47 3342.47 107.95 3344.21 1.85 4.15 BP_ MWD+IFR+MS 123 7667.51 93.27 352.43 29.81 5086.74 3371.82 3371.82 103.26 3373.40 1.75 11.55 BP_ MWD+IFR+MS 124 7697 36 92.07 354.76 29.85 5085.35 3401.45 3401.45 99.96 3402.92 1.68 8.77 BP_ MWD+IFR+MS 125 . 7727.33 89.80 357.07 29.97 5084.86 3431.34 3431.34 97.82 3432.73 1.63 10.81 BP_ MWD+IFR+MS 126 7757.75 86.92 358.19 30.42 5085.73 3461.72 3461.72 96.56 3463.06 1.60 10.16 BP_ MWD+IFR+MS 127 7787.83 85.68 0.38 30.08 5087.67 3491.73 3491.73 96.19 3493.05 1.58 8.35 BP_ MWD+IFR+MS 128 86 7813 85.75 3.28 26.03 5089.62 3517.67 3517.67 97.02 3519.01 1.58 11.11 BP_ MWD+IFR+MS 129 . 7845.95 84.75 6.82 32.09 5092.28 3549.52 3549.52 99.83 3550.92 1.61 11.43 BP_ MWD+IFR+MS 130 7878.33 81.81 7.95 32.38 5096.07 3581.41 3581.41 103.96 3582.92 1.66 9.72 BP_ MWD+IFR+MS 131 7908.65 79.97 10.78 30.32 5100.87 3610.94 3610.94 108.83 3612.58 1.73 11.03 BP_ MWD+IFR+MS 132 95 7937 79.38 13.32 29.30 5106.12 3639.13 3639.13 114.85 3640.94 1.81 8.76 BP_ MWD+IFR+MS 133 . 05 7968 79.76 16.33 30.10 5111.57 3667.74 3667.74 122.42 3669.78 1.91 9.92 BP_ MWD+IFR+MS 134 . 7997 89 80.47 19.81 29.84 5116.69 3695.68 3695.68 131.54 3698.02 2.04 11.73 BP_ MWD+IFR+MS 135 . 8028.63 82.33 24.09 30.74 5121.29 3723.87 3723.87 142.90 3726.61 2.20 15.04 BP_ MWD+IFR+MS 136 8058.28 85.13 27.06 29.65 5124.53 3750.44 3750.44 155.62 3753.67 2.38 13.72 BP_ MWD+IFR+MS 137 28 8087 86.75 30.28 29.00 5126.58 3775.82 3775.82 169.50 3779.62 2.57 12.40 BP_ MWD+IFR+MS 138 . 77 8116 87.09 33.71 29.49 5128.17 3800.79 3800.79 185.10 3805.30 2.79 11.67 BP_ MWD+IFR+MS 139 . 8147.63 86.64 35.80 30.86 5129.86 3826.11 3826.11 202.67 3831.47 3.03 6.92 BP_ MWD+IFR+MS 140 8178.33 87.26 37.40 30.70 5131.49 3850.72 3850.72 220.94 3857.05 3.28 5.58 BP_ MWD+IFR+MS 141 74 8207 88.50 40.54 29.41 5132.58 3873.56 3873.56 239.43 3880.96 3.54 11.47 BP _MWD+IFR+MS 142 . 8238.28 88.74 42.95 30.54 5133.32 3896.34 3896.34 259.75 3904.99 3.81 7.93 BP _MWD+IFR+MS 143 28 8268 88.84 45.73 30.00 5133.95 3917.79 3917.79 280.71 3927.83 4.10 9.27 BP _MWD+IFR+MS 144 . 15 8298 88.60 49.30 29.87 5134.62 3937.96 3937.96 302.73 3949.58 4.40 11.98 BP _MWD+IFR+MS 145 . 8327.72 89.01 53.28 29.57 5135.23 3956.44 3956.44 325.80 3969.83 4.71 13.53 BP _MWD+IFR+MS 146 8357.45 88.50 55.44 29.73 5135.88 3973.76 3973.76 349.95 3989.14 5.03 7.46 BP _MWD+IFR+MS 147 68 8388 88.22 58.39 31.23 5136.77 3990.80 3990.80 376.10 4008.48 5.38 9.48 BP _MWD+IFR+MS 148 . 8420.73 88.84 59.78 32.05 5137.60 4007.26 4007.26 403.59 4027.53 5.75 4.75 BP _MWD+IFR+MS 149 38 8453 90.97 62.45 32.65 5137.65 4023.03 4023.03 432.17 4046.17 6.13 10.46 BP _MWD+IFR+MS 150 . 8484.73 91.11 62.85 31.35 5137.08 4037.43 4037.43 460.01 4063.55 6.50 1.35 BP _MWD+IFR+MS ~J • SCHLUMBERGER Survey Report 1-Feb-2007 10:15:09 Page 7 of 7 Seq -------- Measured ------ Incl ------- Azimuth ------ Course -------- TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 151 8516 48 91 28 63.46 31.75 5136.42 4051.76 4051.76 488.34 4081.09 6.87 1.99 BP _MWD+IFR+MS 152 8548.89 91.31 65.22 32.41 5135.69 4065.79 4065.79 517.54 4098.60 7.25 5.43 BP _MWD+IFR+MS 153 8580.47 91.79 69.62 31.58 5134.83 4077.91 4077.91 546.68 4114.39 7.64 14.01 BP _MWD+IFR+MS 154 8613.13 91.55 72.00 32.66 5133.88 4088.64 4088.64 577.51 4129.23 8.04 7.32 BP _MWD+IFR+MS 155 8644.76 93.03 73.27 31.63 5132.62 4098.07 4098.07 607.67 4142.88 8.43 6.16 BP _MWD+IFR+MS 156 8675.90 92.99 75.33 31.14 5130.98 4106.49 4106.49 637.61 4155.69 8.83 6.61 BP MWD+IFR+MS 157 8708.26 93.20 77.03 32.36 5129.23 4114.21 4114.21 668.99 4168.24 9.24 5.29 BP - MWD+IFR+MS 158 8740.24 96.78 78.57 31.98 5126.45 4120.94 4120.94 700.12 4179.99 9.64 12.18 BP _MWD+IFR+MS 159 8770.81 99.49 79.36 30.57 5122.13 4126.73 4126.73 729.82 4190.77 10.03 9.23 BP _MWD+IFR+MS 160 8802.91 99.42 79.70 32.10 5116.85 4132.49 4132.49 760.96 4201.96 10.43 1.07 BP _MWD+IFR+MS 161 8835.04 101.48 79.42 32.13 5111.03 4138.21 4138.21 792.03 4213.32 10.84 6.47 BP _MWD+IFR+MS 162 8873.00 101.66 80.12 37.96 5103.41 4144.82 4144.82 828.63 4226.83 11.31 1.87 BP _MWD+IFR+MS 163 8930.00 101.66 80.12 57.00 5091.89 4154.39 4154.39 883.62 4247.33 12.01 0.00 Proj. to TD [(c)2007 IDEAL ID12 OC O1] r~ U ~~ G r i SCHLUMBERGER Survey report Client .................... Field ....................: Well ...................... API number ...............: Engineer .................: Rig :...................... STATE :...................: ----- Survey calculation m Method for positions.....: Method for DLS...........: BP Exploration (Alaska) Inc. Polaris W-204 50-029-23333-00 F. Medina Nabors 7ES Alaska ethods------------- Minimum curvature Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: Mean Sea Level Depth reference..........: Driller's Depth GL above permanent.......: 52.60 ft KB above permanent.......: N/A Top Drive DF above permanent.......: 81.52 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+E/W-)........: -999.25 ft Azimuth from Vsect Origin to target: .0.00 degrees 30-Jan-2007 20:32:14 Page 1 of 11 Spud date ................: Ol-Jan-07 Last survey date.........: 29-Jan-07 Total accepted surveys...: 279 MD of first survey.......: 0.00 ft MD of last survey........: 12630.00 ft ----- Geomagnetic data ---------------------- Magnetic model...........: BGGM version 2006 Magnetic date ............: 02-Jan-2007 Magnetic field strength..: 57637.20 LAMA Magnetic dec (+E/W-).....: 23.90 degrees Magnetic dip .............: 80.89 degrees ----- MWD survey Reference Reference G ..............: Reference H ..............: Reference Dip ............. Tolerance of G...........: Tolerance of H...........: Tolerance of Dip.........: Criteria --------- 1002.68 meal 57637.50 GAMA 80.89 degrees (+/-) 2.50 meal (+/-)300.00 LAMA (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 23.89 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 23.89 degrees (Total az corr = magnetic dec - grid conv) Survey Correction Type .... I=Sag Corrected Inclination M=Schlumberger Magnetic Correction S=Shell Magnetic Correction F=Failed Axis Correction R=Magnetic Resonance Tool Correction D=Dmag Magnetic Correction SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 2 of 11 Seq Measured Incl _______ Azimuth Course TVD -------- Vertical --------- Displ --- Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TIP None 2 100.00 0.34 149.95 100.00 100.00 -0.26 -0.26 0.15 0.30 149.95 0.34 BP_ GYD CT DMS 3 169.00 0.40 143.89 69.00 169.00 -0.63 -0.63 0.39 0.74 147.98 0.10 BP_ GYD CT DMS 4 200.00 0.69 151.96 31.00 200.00 -0.88 -0.88 0.54 1.04 148.27 0.97 BP_ GYD CT DMS 5 258.00 0.85 159.49 58.00 257.99 -1.59 -1.59 0.86 1.81 151.64 0.33 BP_ GYD CT DMS 6 300.00 0.77 147.72 42.00 299.99 -2.12 -2.12 1.12 2.40 152.19 0.44 BP_ GYD CT DMS 7 400.00 0.98 146.00 100.00 399.98 -3.40 -3.40 1.96 3.92 150.08 0.21 BP_ GYD CT DMS 8 500.00 0.83 147.45 100.00 499.96 -4.72 -4.72 2.82 5.50 149.10 0.15 BP_ GYD CT DMS 9 600.00 0.99 142.21 100.00 599.95 -6.01 -6.01 3.74 7.08 148.09 0.18 BP_ GYD CT DMS 10 700.00 0.83 150.26 100.00 699.94 -7.32 -7.32 4.63 8.67 147.69 0.20 BP_ GYD CT DMS 11 797.00 0.24 143.69 97.00 796.93 -8.10 -8.10 5.10 9.57 147.79 0.61 BP_ GYD CT DMS 12 922.98 0.37 318.09 125.98 922.91 -8.01 -8.01 4.99 9.43 148.09 0.48 BP_ MWD+IFR+MS 13 1018.61 0.79 323.25 95.63 1018.54 -7.25 -7.25 4.38 8.47 148.83 0.44 BP_ MWD+IFR+MS 14 1114.01 0.73 329.39 95.40 1113.93 -6.20 -6.20 3.68 7.21 149.29 0.11 BP_ MWD+IFR+MS 15 1210.23 0.90 353.85 96.22 1210.14 -4.92 -4.92 3.29 5.92 146.24 0.40 BP_ MWD+IFR+MS 16 1303.82 1.01 342.17 93.59 1303.72 -3.40 -3.40 2.96 4.51 139.02 0.24 BP_ MWD+IFR+MS 17 1399.07 1.25 356.69 95.25 1398.95 -1.57 -1.57 2.64 3.07 120.71 0.39 BP_ MWD+IFR+MS 18 1495.44 1.09 355.76 96.37 1495.30 0.40 0.40 2.51 2.54 81.05 0.17 BP _MWD+IFR+MS 19 1592.28 1.20 356.89 96.84 1592.12 2.33 2.33 2.39 3.33 45.75 0.12 BP _MWD+IFR+MS 20 1687.44 0.79 330.62 95.16 1687.26 3.89 3.89 2.01 4.38 27.34 0.63 BP _MWD+IFR+MS 21 1781.85 0.83 352.86 94.41 1781.66 5.14 5.14 1.61 5.38 17.38 0.33 BP _MWD+IFR+MS 22 1877.80 1.13 2.11 95.95 1877.60 6.77 6.77 1.56 6.95 12.94 0.35 BP _MWD+IFR+MS 23 1973.78 0.96 2.84 95.98 1973.56 8.52 8.52 1.63 8.68 10.84 0.18 BP _MWD+IFR+MS 24 2070.10 1.04 344.92 96.32 2069.87 10.17 10.17 1.44 10.27 8.08 0.33 BP _MWD+IFR+MS 25 2165.30 0.84 345.88 95.20 2165.06 11.68 11.68 1.05 11.73 5.13 0.21 BP _MWD+IFR+MS 26 2261.77 0.83 345.85 96.47 2261.52 13.05 13.05 0.71 13.07 3.10 0.01 BP _MWD+IFR+MS 27 2357.09 2.40 32.53 95.32 2356.80 15.40 15.40 1.61 15.48 5.97 2.02 BP _MWD+IFR+MS 28 2452.78 4.50 42.73 95.69 2452.31 19.85 19.85 5.24 20.53 14.78 2.28 BP _MWD+IFR+MS 29 2547.41 6.89 52.37 94.63 2546.47 26.04 26.04 12.25 28.78 25.20 2.71 BP _MWD+IFR+MS 30 2643.42 9.03 49.85 96.01 2641.55 34.42 34.42 22.57 41.16 33.26 2.26 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 3 of 11 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (f t) (f t) (ft) (deg) 100f) type (deg) 31 2737.28 11.06 47.21 93.86 2733.97 45.28 45.28 34.81 57.12 37.55 2.22 BP _MWD+IFR+MS 32 2833.00 11.65 39.14 95.72 2827.82 59.02 59.02 47.65 75.85 38.92 1.77 BP _MWD+IFR+MS 33 2928.85 11.95 38.20 95.85 2921.64 74.32 74.32 59.89 95.45 38.87 0.37 BP _MWD+IFR+MS 34 3024.05 12.13 38.62 95.20 3014.75 89.88 89.88 72.23 115.31 38.79 0.21 BP _MWD+IFR+MS 35 3119.93 12.90 38.76 95.88 3108.35 106.10 106.10 85.22 136.08 38.77 0.80 BP _MWD+IFR+MS 36 3215.85 14.63 39.24 95.92 3201.51 123.83 123.83 99.59 158.91 38.81 1.81 BP _MWD+IFR+MS 37 3288.00 15.06 39.22 72.15 3271.25 138.15 138.15 111.28 177.39 38.85 0.60 BP _MWD+IFR+MS 38 3348.85 14.91 40.15 60.85 3330.03 150.26 150.26 121.32 193.12 38.92 0.47 BP _MWD+IFR+MS 39 3443.74 14.78 40.00 94.89 3421.76 168.86 168.86 136.98 217.43 39.05 0.14 BP _MWD+IFR+MS 40 3538.42 14.72 39.49 94.68 3513.32 187.39 187.39 152.39 241.53 39.12 0.15 BP _MWD+IFR+MS 41 3635.18 14.59 40.18 96.76 3606.93 206.19 206.19 168.07 266.01 39.18 0.22 BP _MWD+IFR+MS 42 3730.28 14.66 40.00 95.10 3698.95 224.56 224.56 183.53 290.02 39.26 0.09 BP _MWD+IFR+MS 43 3827.95 14.84 39.73 97.67 3793.40 243.65 243.65 199.47 314.89 39.31 0.20 BP _MWD+IFR+MS 44 3922.15 15.04 40.21 94.20 3884.41 262.26 262.26 215.07 339.17 39.35 0.25 BP _MWD+IFR+MS 45 4019.84 18.04 36.19 97.69 3978.05 284.15 284.15 232.19 366.95 39.25 3.29 BP _MWD+IFR+MS 46 4116.03 20.06 31.99 96.19 4068.98 310.17 310.17 249.73 398.21 38.84 2.54 BP _MWD+IFR+MS 47 4211.01 24.15 26.12 94.98 4156.97 341.45 341.45 266.92 433.40 38.02 4.89 BP _MWD+IFR+MS 48 4306.19 26.17 20.20 95.18 4243.13 378.64 378.64 282.74 472.56 36.75 3.39 BP _MWD+IFR+MS 49 4401.96 28.84 12.94 95.77 4328.09 420.99 420.99 295.21 514.18 35.04 4.47 BP _MWD+IFR+MS 50 4497.91 32.29 10.05 95.95 4410.70 468.79 468.79 304.87 559.21 33.04 3.91 BP _MWD+IFR+MS 51 4592.34 35.80 6.99 94.43 4488.94 521.06 521.06 312.64 607.66 30.96 4.14 BP _MWD+IFR+MS 52 4688.49 39.68 4.99 96.15 4564.96 579.58 579.58 318.73 661.44 28.81 4.23 BP _MWD+IFR+MS 53 4784.39 43.38 3.68 95.90 4636.74 642.97 642.97 323.51 719.77 26.71 3.96 BP _MWD+IFR+MS 54 488.0.69 46.09 3.09 96.30 4705.14 710.62 710.62 327.50 782.46 24.74 2.85 BP _MWD+IFR+MS 55 4973.34 50.11 2.26 92.65 4767.00 779.49 779.49 330.71 846.75 22.99 4.39 BP _MWD+IFR+MS 56 5074.06 54.17 1.15 100.72 4828.81 858.96 858.96 333.05 921.27 21.19 4.12 BP _MWD+IFR+MS 57 5163.32 56.40 357.44 89.26 4879.65 932.30 932.30 332.12 989.69 19.61 4.23 BP _MWD+IFR+MS 58 5258.85 60.10 354.88 95.53 4929.92 1013.32 1013.32 326.64 1064.67 17.87 4.49 BP _MWD+IFR+MS 59 5356.06 63.96 354.61 97.21 4975.50 1098.80 1098.80 318.78 1144.11 16.18 3.98 BP _MWD+IFR+MS 60 5452.19 67.83 355.86 96.13 5014.75 1186.23 1186.23 311.50 1226.45 14.71 4.20 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 4 of 11 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (f t) (deg) (deg) (f t) (f t) (ft) (ft) (ft) (ft) (deg) l0of) type (deg) 61 5547.56 70.57 353.31 95.37 5048.62 1274.97 1274.97 303.07 1310.49 13.37 3.81 BP _MWD+IFR+MS 62 5644.19 74.80 352.64 96.63 5077.38 1366.50 1366:50 291.79 1397.31 12.05 4.43 BP _MWD+IFR+MS 63 5740.37 78.60 352.06 96.18 5099.50 1459.25 1459.25 279.33 1485.74 10.84 3.99 BP _MWD+IFR+MS 64 5784.72 79.18 352.27 44.35 5108.04 1502.36 1502.36 273.39 1527.04 10.31 1.39 BP _MWD+IFR+MS 65 5852.19 79.17 351.35 67.47 5120.72 1567.96 1567.96 263.95 1590.02 9.56 1.34 BP _MWD+IFR+MS 66 5884.77 80.91 353.43 32.58 5126.35 1599.76 1599.76 259.71 1620.70 9.22 8.25 BP _MWD+IFR+MS 67 5915.90 83.81 356.83 31.13 5130.49 1630.49 1630.49 257.09 1650.64 8.96 14.28 BP _MWD+IFR+MS 68 5947.89 87.60 359.85 31.99 5132.89 1662.37 1662.37 256.17 1681.99 8.76 15.13 BP _MWD+IFR+MS 69 5979.87 90.41 1.05 31.98 5133.44 1694.34 1694.34 256.42 1713.64 8.61 9.55 BP _MWD+IFR+MS 70 6011.05 90.24 0.95 31.18 5133.27 1725.52 1725.52 256.96 1744.55 8.47 0.63 BP _MWD+IFR+MS 71 6043.52 90.07 0.59 32.47 5133.18 1757.98 1757.98 257.40 1776.73 8.33 1.23 BP _MWD+IFR+MS 72 6075.77 91.13 0.10 32.25 5132.84 1790.23 1790.23 257.59 1808.67 8.19 3.62 BP _MWD+IFR+MS 73 6106.71 91.48 359.56 30.94 5132.14 1821.16 1821.16 257.50 1839.28 8.05 2.08 BP _MWD+IFR+MS 74 6139.23 91.27 359.59 32.52 5131.35 1853.67 1853.67 257.26 1871.44 7.90 0.65 BP _MWD+IFR+MS 75 6171.34 91.41 357.82 32.11 5130.60 1885.76 1885.76 256.54 1903.13 7.75 5.53 BP _MWD+IFR+MS 76 6202.66 91.41 356.13 31.32 5129.83 1917.03 1917.03 254.88 1933.90 7.57 5.39 BP _MWD+IFR+MS 77 6234.10 91.24 356.09 31.44 5129.11 1948.39 1948.39 252.75 1964.71 7.39 0.56 BP _MWD+IFR+MS 78 6266.66 91.41 356.33 32.56 5128.35 1980.87 1980.87 250.60 1996.66 7.21 0.90 BP _MWD+IFR+MS 79 6298.49 91.31 356.34 31.83 5127.60 2012.63 2012.63 248.57 2027.92 7.04 0.32 BP _MWD+IFR+MS 80 6329.78 91.07 356.33 31.29 5126.95 2043.84 2043.84 246.57 2058.66 6.88 0.77 BP MWD+IFR+MS 81 6362.39 90.93 356.87 32.61 5126.38 2076.39 2076.39 244.63 2090.75 6.72 1.71 BP _MWD+IFR+MS 82 6393.57 90.72 356.14 31.18 5125.93 2107.51 2107.51 242.73 2121.44 6.57 2.44 BP _MWD+IFR+MS 83 6425.65 91-.20 356.67 32.08 5125.39 2139.52 2139.52 240.72 2153.02 6.42 2.23 BP _MWD+IFR+MS 84 6458.44 91.34 357.00 32.79 5124.67 2172.25 2172.25 238.91 2185.35 6.28 1.09 BP _MWD+IFR+MS 85 6490.31 91.31 356.65 31.87 5123.93 2204.07 2204.07 237.15 2216.79 6.14 1.10 BP _MWD+IFR+MS 86 6521.49 91.31 355.96 31.18 5123.22 2235.17 2235.17 235.14. 2247.51 6.01 2.21 BP _MWD+IFR+MS 87 6553.53 91.41 356.79 32.04 5122.46 2267.14 2267.14 233.11 2279.09 5.87 2.61 BP _MWD+IFR+MS 88 6585.89 91.34 356.16 32.36 5121.68 2299.43 2299.43 231.12 2311.02 5.74 1.96 BP _MWD+IFR+MS 89 6616.89 90.82 355.65 31.00 5121.10 2330.34 2330.34 228.91 2341.56 5.61 2.35 BP _MWD+IFR+MS 90 6649.25 90.45 355.03 32.36 5120.74 2362.60 2362.60 226.28 2373.41 5.47 2.23 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 5 of 11 Seq Measured ------ Incl ------- Azimuth ------ Course -------- TVD -------- Vertical Displ Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 91 -------- 6681.38 ------ 89.76 ------- 355.27 ------ 32.13 ----- 5120.68 2394.61 2394.61 223.56 2405.02 5.33 2.27 BP _MWD+IFR+MS 92 6712.54 89.80 354.14 31.16 5120.80 2425.64 2425.64 220.69 2435.65 5.20 3.63 BP _MWD+IFR+MS 93 6744.54 89.83 354.26 32.00 5120.90 2457.47 2457.47 217.45 2467.07 5.06 0.39 BP _MWD+IFR+MS 94 6776.95 88.94 355.03 32.41 5121.25 2489.74 2489.74 214.43 2498.96 4.92 3.63 BP _MWD+IFR+MS 95 6807.60 88.63 354.63 30.65 5121.90 2520.26 2520.26 211.67 2529.13 4.80 1.65 BP _MWD+IFR+MS 96 6840.03 88.56 354.61 32.43 5122.69 2552.53 2552.53 208.63 2561.05 4.67 0.22 BP _MWD+IFR+MS 97 6872.28 91..00 354.86 32.25 5122.82 2584.65 2584.65 205.67 2592.82 4.55 7.61 BP _MWD+IFR+MS 98 6903.82 92.58 355.86 31.54 5121.83 2616.07 2616.07 203.12 2623.94 4.44 5.93 BP _MWD+IFR+MS 99 6935.88 92.88 355.26 32.06 5120.31 2647.99 2647.99 200.64 2655.58 4.33 2.09 BP _MWD+IFR+MS 100 6968.34 92.82 355.29 32.46 5118.69 2680.30 2680.30 197.97 2687.60 4.22 0.21 BP _MWD+IFR+MS 101 6999.62 92.78 355.60 31.28 5117.16 2711.45 2711.45 195.49 2718.48 4.12 1.00 BP _MWD+IFR+MS 102 7032.19 91.82 353.94 32.57 5115.86 2743.85 2743.85 192.52 2750.60 4.01 5.88 BP_ MWD+IFR+MS 103 7064.82 91.21 352.84 32.63 5114.99 2776.25 2776.25 188.77 2782.66 3.89 3.85 BP _MWD+IFR+MS 104 7095.97 92.20 352.86 31.15 5114.07 2807.15 2807.15 184.89 2813.23 3.77 3.18 BP _MWD+IFR+MS 105 7128.29 92.44 353.31 32.32 5112.76 2839.21 2839.21 181.00 2844.97 3.65 1.58 BP _MWD+IFR+MS 106 7161.01 92.33 353.28 32.72 5111.40 2871.67 2871.67 177.19 2877.14. 3.53 0.35 BP _MWD+IFR+MS 107 7192.38 92.51 353.38 31.37 5110.07 2902.80 2902.80 173.55 2907.99 3.42 0.66 BP _MWD+IFR+MS 108 7224.12 92.51 353.57 31.74 5108.68 2934.31 2934.31 169.94 2939.23 3.31 0.60 BP _MWD+IFR+MS 109 7255.72 92.47 352.58 31.60 5107.31 2965.65 2965.65 166.14 2970.30 3.21 3.13 BP _MWD+IFR+MS 110 7286.94 92.51 353.17 31.22 5105.95 2996.60 2996.60 162.27 3000.99 3.10 1.89 BP MWD+IFR+MS 111 7319.18 92.51 352.05 32.24 5104.54 3028.54 3028.54 158.13 3032.66 2.99 3.47 BP _MWD+IFR+MS 112 7351.58 92.44 352.31 32.40 5103.14 3060.61 3060.61 153.72 3064.46 2.88 0.83 BP _MWD+IFR+MS 113 7382.84 92.51 352.17 31.26 5101.79 3091.55 3091.55 149.50 3095.16 .2.77 0.50 BP _MWD+IFR+MS 114 7415.20 92.61 352.51 32.36 5100.35 3123.59 3123.59 145.20 3126.96 2.66 1.09 BP _MWD+IFR+MS 115 7446.74 92.37 352.76 31.54 5096.98 3154.84 3154.84 141.16 3158.00 2.56 1.10 BP _MWD+IFR+MS 116 7477.95 92.51 352.87 31.21 5097.65 3185.78 3185.78 137.26 3188.73 2.47 0.57 BP _MWD+IFR+MS 117 7510.48 91.79 351.03 32.53 5096.43 3217.96 3217.96 132.70 3220.70 2.36 6.07 BP _MWD+IFR+MS 118 7542.32 91.34 348.22 31.84 5095.56 3249.27 3249.27 126.97 3251.75 2.24 8.93 BP _MWD+IFR+MS 119 7574.22 91.61 349.44 31.90 5094.74 3280.55 3280.55 120.80 3282.78 2.11 3.92 BP _MWD+IFR+MS 120 7605.53 88.87 348.72 31.31 5094.60 3311.29 3311.29 114.86 3313.28 1.99 9.05 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 6 of 11 Seq Measured Incl Azimuth Course -------- TVD -------- Vertical -------- Displ -------- Displ --- Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- dis 1 p Azim (de / g tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 121 7636 11 88.90 348.19 30.58 -------- 5095.20 -------- 3341.25 ----- 3341.25 108.75 3343.02 1.86 1.74 BP_ MWD+IFR+MS 122 7668.00 88.87 348.50 31.89 5095.82 3372.47 3372.47 102.30 3374.03 1.74 0.98 BP_ MWD+IFR+MS 123 7697.75 89.32 348.13 29.75 5096.29 3401.60 3401.60 96.28 3402.97 1.62 1.96 BP_ MWD+IFR+MS 124 7728.78 89.90 346.83 31.03 5096.50 3431.89 3431.89 89.55 3433.06 1.49 4.59 BP_ MWD+IFR+MS 125 7758.34 88.77 345.16 29.56 5096.84 3460.57 3460.57 82.40 3461.55 1.36 6.82 BP_ MWD+IFR+MS 126 7788.81 88.80 346.74 30.47 5097.49 3490.12 3490.12 75.01 3490.93 1.23 5.19 BP_ MWD+IFR+MS 127 7819.22 88.32 348.24 30.41 5098.25 3519.80 3519.80 68.42 3520.47 1.11 5.18 BP_ MWD+IFR+MS 128 7848.37 87.84 350.30 29.15 5099.23 3548.42 3548.42 63.00 3548.98 1.02 7.25 BP_ MWD+IFR+MS 129 7879.00 87.43 352.03 30.63 5100.50 3578.66 3578.66 58.30 3579.14 0.93 5.80 BP_ MWD+IFR+MS 130 7909.17 85.79 353.70 30.17 5102.28 3608.54 3608.54 54.56 3608.96 0.87 7.75 BP_ MWD+IFR+MS 131 7937.97 85.92 355.54 28.80 5104.36 3637.14 3637.14 51.86 3637.51 0.82 6.39 BP_ MWD+IFR+MS 132 7968.26 85.74 356.86 30.29 5106.56 3667.28 3667.28 49.86 3667.62 0.78 4.39 BP_ MWD+IFR+MS 133 7998.52 85.31 358.42 30.26 5108.93 3697.43 3697.43 48.62 3697.75 0.75 5.33 BP_ MWD+IFR+MS 134 8028.12 88.25 358.66 29.60 5110.59 3726.97 3726.97 47.87 3727.27 0.74 9.97 BP_ MWD+IFR+MS 135 8058.18 89.08 359.52 30.06 5111.29 3757.01 3757.01 47.39 3757.31 0.72 3.98 BP_ MWD+IFR+MS 136 8088.87 87.74 359.06 30.69 5112.14 3787.69 3787.69 47.01 3787.98 0.71 4.62 BP_ MWD+IFR+MS 137 8117.38 87.57 359.45 28.51 5113.31 3816.17 3816.17 46.64 3816.46 0.70 1.49 BP_ MWD+IFR+MS 138 8147.88 88.01 0.42 30.50 5114.48 3846.65 3846.65 46.60 3846.93 0.69 3.49 BP_ MWD+IFR+MS 139 8178.01 86.64 359.02 30.13 5115.89 3876.74 3876.74 46.46 3877.02 0.69 6.50 BP_ MWD+IFR+MS 140 8207.75 86.33 355.82 29.74 5117.71 3906.42 3906.42 45.90 3906.69 0.67 1.24 BP _MWD+IFR+MS 141 8237.36 86.43 358.80 29.61 5119.58 3935.97 3935.97 45.28 3936.23 0.66 0.34 BP _MWD+IFR+MS 142 8268.52 86.14 359.07 31.16 5121.60 3967.06 3967.06 44.71 3967.31 0.65 1.27 BP _MWD+IFR+MS 143 8298.13 89.25 359.74 29.61 5122.79 3996.64 3996.64 44.40 3996.88 0.64 10.74 BP _MWD+IFR+MS 144 8327.68 90.89 0.84 29.55 5122.76 4026.19 4026.19 44.55 4026.43 0.63 6.68 BP _MWD+IFR+MS 145 8357.88 90.86 1.10 30.20 5122.29 4056.38 4056.36 45.06 4056.63 0.64 0.67 BP _MWD+IFR+MS 146 8389.04 90.79 1.74 31.16 5121.85 4087.53 4087.53 45.83 4087.78 0.64 2.07 BP _MWD+IFR+MS 147 8421.34 90.41 0.96 32.30 5121.51 4119.81 4119.81 46.59 4120.08 0.65 2.69 BP _MWD+IFR+MS 148 8452.08 90.14 0.52 30.74 5121.36 4150.55 4150.55 46.99 4150.82 0.65 1.68 BP _MWD+IFR+MS 149 8484.77 90.96 1.07 32.69 5121.05 4183.24 4183.24 47.44 4183.50 0.65 3.02 BP _MWD+IFR+MS 150 8516.66 91.55 1.99 31.89 5120.35 4215.11 4215.11 48.29 4215.38 0.66 3.43 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 7 of 11 Seq Measured ______ Incl Azimuth ______ Course TVD -------- Vertical -------- Displ -- Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 151 ________ 8548.34 ______ 92.61 2 64 ------ 31.68 -------- 5119.20 -------- 4246.74 4246.74 49.57 4247.03 0.67 3.92 BP_ MWD+IFR+MS 152 8580.34 92.61 2.39 32.00 5117.74 4278.68 4278.68 50.98 4278.98 0.68 0.78 BP_ MWD+IFR+MS 153 8612.46 92.71 1.80 32.12 5116.25 4310.74 4310.74 52.15 4311.05 0.69 1.86 BP_ MWD+ZFR+MS 154 8643.87 93.36 1.43 31.41 5114.59 4342.09 4342.09 53.03 4342.42 0.70 2.38 BP_ MWD+IFR+MS 155 8675.54 93.26 2.13 31.67 5112.76 4373.69 4373.69 54.01 4374.03 0.71 2.23 BP_ MWD+IFR+MS 156 8707.71 93.12 2.00 32.17 5110.97 4405.79 4405.79 55.17 4406.14 0.72 0.59 BP_ MWD+IFR+MS 157 8739.01 92.92 1.43 31.30 5109.32 4437.04 4437.04 56.11 4437.39 0.72 1.93 BP_ MWD+IFR+MS 158 8770.60 92.51 0.81 31.59 5107.82 4468.58 4468.58 56.72 4468.94 0.73 2.35 BP_ MWD+IFR+MS 159 8802.58 92.78 1.38 31.98 5106.35 4500.52 4500.52 57.33 4500.89 0.73 1.97 BP_ MWD+IFR+MS 160 8834.22 93.50 1.32 31.64 5104.61 4532.11 4532.11 58.08 4532..48 0.73 2.28 BP_ MWD+IFR+MS 161 8865.27 93.95 359.51 31.05 5102.60 4563.09 4563.09 58.30 4563.46 0.73 5.99 BP_ MWD+IFR+MS 162 8897.63 94.70 357.67 32.36 5100.16 4595.35 4595.35 57.51 4595.71 0.72 6.13 BP_ MWD+IFR+MS 163 8929.00 94.53 357.40 31.37 5097.63 4626.59 4626.59 56.16 4626.93 0.70 1.01 BP_ MWD+IFR+MS 164 8960.49 94.26 357.57 31.49 5095.22 4657.95 4657.95 54.79 4658.27 0.67 1.01 BP_ MWD+IFR+MS 165 8992.88 94.02 357.08 32.39 5092.88 4690.22 4690.22 53.28 4690.53 0.65 1.68 BP_ MWD+IFR+MS 166 9025.79 93.78 357.39 32.91 5090.64 4723.02 4723.02 51.70 4723.30 0.63 1.19 BP_ MWD+IFR+MS 167 9057.74 93.64 356.84 31.95 5088.57 4754.86 4754.86 50.09 4755.13 0.60 1.77 BP_ MWD+IFR+MS 168 9088.35 92.09 357.40 30.61 5087.04 4785.39 4785.39 48.55 4785.64 0.58 5.38 BP _MWD+IFR+MS 169 9121.10 92.27 356.94 32.75 5085.80 4818.08 4818.08 46.94 4818.31 0.56 1.51 BP _MWD+IFR+MS 170 9153.26 92.71 357.47 32.16 5084.40 4850.17 4850.17 45.37 4850.38 0.54 2.14 BP _MWD+IFR+MS 171 9184.67 93.33 356.07 31.41 5082.75 4881.49 4881.49 43.60 4881.68 0.51 4.87 BP _MWD+IFR+MS 172 9217.01 93.67 357.06 32.34 5080.77 4913.71 4913.71 41.67 4913.88 0.49 3.23 BP _MWD+IFR+MS 173 9248.62 91.89 355.00 31.61 5079.24 4945.20 4945.20 39.48 4945.36 0.46 8.61 BP _MWD+IFR+MS 174 9280.59 91.45 353.52 31.97 5078.31 4977.00 4977.00 36.29 4977.13 0.42 4.83 BP _MWD+IFR+MS 175 9313.31 93.19 355.33 32.72 5076.98 5009.53 5009.53 33.11 5009.64 0.36 7.67 BP _MWD+IFR+MS 176 9344.51 93.30 356.04 31.20 5075.22 5040.59 5040.59 30.77 5040.69 0.35 2.30 BP _MWD+IFR+MS 177 9377.01 93.02 355..41 32.50 5073.43 5072.95 5072.95 28.35 5073.03 0.32 2.12 BP _MWD+IFR+MS 178 9409.18 92.61 356.62 32.17 5071.85 5105.01 5105.01 26.12 5105.07 0.29 3.97 BP _MWD+IFR+MS 179 9440.81 92.47 357.78 31.63 5070.44 5136.57 5136.57 24.57 5136.63 0.27 3.69 BP _MWD+IFR+MS 180 9472.78 92.40 357.94 31.97 5069.09 5168.49 5168.49 23.38 5168.54 0.26 0.55 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 8 of 11 Seq ________ Measured Incl Azimuth Course -------- TVD -------- Vertical -----p-- Dis 1 Dis 1 p Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 181 9504 88 92 71 358.79 32.10 5067.65 5200.54 5200.54 22.47 5200.59 0.25 2.82 BP_ MWD+IFR+MS 182 9536.22 92.64 358.01 31.34 5066.19 5231.83 5231.83 21.59 5231.88 0.24 2.50 BP_ MWD+IFR+MS 183 9568.49 91.73 357.03 32.27 5064.96 5264.05 5264.05 20.20 5264.09 0.22 4.14 BP_ MWD+IFR+MS 184 9600.55 92.78 357.51 32.06 5063.70 5296.05 5296.05 18.67 5296.08 0.20 3.60 BP_ MWD+IFR+MS 185 9632.26 93.33 357.64 31.71 5062.01 5327.69 5327.69 17.33 5327.71 0.19 1.78 BP_ MWD+IFR+MS 186 9664.91 93.43 358.41 32.65 5060.09 5360.26 5360.26 16.21 5360.28 0.17 2.37 BP_ MWD+IFR+MS 187 9696.63 93.20 359.66 31.72 5058.25 5391.92 5391.92 15.67 5391.94 0.17 4.00 BP_ MWD+IFR+MS 188 9728.44 92.30 1.31 31.81 5056.72 5423.69 5423.69 15.94 5423.72 0.17 5.90 BP_ MWD+IFR+MS 189 9760.98 91.99 359.63 32.54 5055.51 5456.21 5456.21 16.21 5456.23 0.17 5.25 BP_ MWD+IFR+MS 190 9792.15 93.95 0.65 31.17 5053.89 5487.33 5487.33 16.29 5487.36 0.17 7.09 BP_ MWD+IFR+MS 191 9823.77 93.26 1.05 31.62 5051.90 5518.89 5518.89 16.75 5518.91 0.17 2.52 BP_ MWD+IFR+MS 192 9855.77 90.38 0.15 32.00 5050.89 5550.86 5550.86 17.09 5550.89 0.18 9.43 BP_ MWD+IFR+MS 193 9887.84 87.64 358.74 32.07 5051.44 5582.92 5582.92 16.78 5582.95 0.17 9.61 BP_ MWD+IFR+MS 194 9918.88 87.74 358.99 31.04 5052.69 5613.93 5613.93 16.16 5613.96 0.16 0.87 BP_ MWD+IFR+MS 195 9951.22 87.94 358.63 32.34 5053.91 5646.24 5646.24 15.49 5646.27 0.16 1.27 BP_ MWD+IFR+MS 196 9982.93 87.67 359.05 31.71 5055.13 5677.92 5677.92 14.85 5677.94 0.15 1.57 BP_ MWD+IFR+MS 197 10015.06 86.84 359.35 32.13 5056.66 5710.01 5710.01 14.40 5710.03 0.14 2.75 BP_ MWD+IFR+MS 198 10038.55 86.67 359.38 23.49 5057.99 5733.46 5733.46 14.14 5733.48 0.14 0.73 BP_ MWD+IFR+MS 199 10079.25 87.29 0.04 40.70 5060.14 5774.11 5774.11 13.94 5774.12 0.14 2.22 BP_ MWD+IFR+MS 200 10111.86 88.60 0.53 32.61 5061.31 5806.70 5806.70 14.10 5806.71 0.14 4.29 BP_ MWD+IFR+MS 201 10130.87 88.63 0.42 19.01 5061.77 5825.70 5825.70 14.26 5825.72 0.14 0.60 BP_ MWD+IFR+MS 202 10162.85 88.94 2.90 31.98 5062.45 5857.66 5857.66 15.18 5857.67 0.15 7.81 BP_ MWD+IFR+MS 203 10194.72 89.21 4.05 31.87 5062.96 5889.46 5889.46 17.11 5889.49 0.17 3.71 BP_ MWD+IFR+MS 204 10226.18 89.21 3.70 31.46 5063.39 5920.85 5920.85 19.24 5920.88 0.19 1.11 BP_ MWD+IFR+MS 205 10257.67 89.32 3.81 31.49 5063.60 5952.27 5952.27 21.30 5952.30 0.21 0.49 BP _MWD+IFR+MS 206 10290.70 89.97 3.43 33.03 5064.00 5985.23 5985.23 23.39 5985.28 0.22 2.28 BP _MWD+IFR+MS 207 10321.41 89.28 3.76 30.71 5064.20 6015.88 6015.88 25.31 6015.93 0.24 2.49 BP _MWD+IFR+MS 208 10353.48 88.60 3.95 32.07 5064.80 6047.87 6047.87 27.47 6047.93 0.26 2.20 BP _MWD+IFR+MS 209 10385.89 88.36 3.22 32.41 5065.66 6080.20 6080.20 29.50 6080.28 0.28 2.37 BP _MWD+IFR+MS 210 10418.33 88.25 4.32 32.44 5066.62 6112.56 6112.56 31.63 6112.64 0.30 3.41 BP _MWD+IFR+MS i u SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 9 of 11 Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool ## depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) --- 211 -------- 10450.35 ------ 88.05 ------ 3.49 32.02 5067.65 6144.49 6144.49 33.81 6144.58 0.32 2.67 BP _MWD+IFR+MS 212 10482.83 88.15 3.38 32.48 5068.73 6176.89 6176.89 35.75 6177.00 0.33 0.46 BP _MWD+IFR+MS 213 10513.73 89.42 3.73 30.90 5069.38 6207.73 6207.73 37.67 6207.84 0.35 4.26 BP _MWD+IFR+MS 214 10545.35 90.31 4.05 31.62 5069.46 6239.27 6239.27 39.81 6239.40 0.37 2.99 BP _MWD+IFR+MS 215 10577.62 90.14 3.85 32.27 5069.33 6271.47 6271.47 42.04 6271.61 0.38 0.81 BP _MWD+IFR+MS 216 10609.63 89.97 4.52 32.01 5069.30 6303.39 6303.39 44.37 6303.55 0.40 2.16 BP _MWD+IFR+MS 217 10640.96 89.76 3.71 31.33 5069.37 6334.64 6334.64 46.62 6334.81 0.42 2.67 BP _MWD+IFR+MS 218 10673.39 89.83 3.43 32.43 5069.49 6367.01 6367.01 48.64 6367.19 0.44 0.89 BP _MWD+IFR+MS 219 10704.63 89.66 3.93 31.24 5069.63 6398.18 6398.18 50.64 6398.38 0.45 1.69 BP _MWD+IFR+MS 220 10736.60 89.59 4.19 31.97 5069.84 6430.07 6430.07 52.91 6430.29 0.47 0.84 BP _MWD+IFR+MS 221 10768.48 89.49 3.92 31.88 5070.09 6461.87 6461.87 55.16 6462.10 0.49 0.90 BP _MWD+IFR+MS 222 10800.54 89.39 4.12 32.06 5070.41 6493.85 6493.85 57.41 6494.10 0.51 0.70 BP _MWD+IFR+MS 223 10832.57 89.45 3.14 32.03 5070.73 6525.81 6525.81 59.44 6526.08 0.52 3.07 BP _MWD+IFR+MS 224 10864.25 89.69 3.51 31.68 5070.97 6557.44 6557.44 61.27 6557.72 0.54 1.39 BP _MWD+IFR+MS 225 10896.33 88.77 3.86 32.08 5071.40 6589.45 6589.45 63.34 6589.75 0.55 3.07 BP _MWD+IFR+MS 226 10927.90 86.85 4.64 31.57 5072.61 6620.91 6620.91 65.67 6621.23 0.57 6.56 BP _MWD+IFR+MS 227 10960.10 86.98 4.56 32.20 5074.34 6652.96 6652.96 68.25 6653.31 0.59 0.47 BP _MWD+IFR+MS 228 10991.70 86.19 4.60 31.60 5076.22 6684.40 6684.40 70.77 6684.77 0.61 2.50 BP _MWD+IFR+MS 229 11023.39 86.02 4.32 31.69 5078.37 6715.92 6715.92 73.23 6716.32 0.62 1.03 BP _MWD+IFR+MS 230 11055.34 85.61 4.54 31.95 5080.71 6747.69 6747.69 75.69 6748.11 0.64 1.46 BP _MWD+IFR+MS 231 11087.20 85.95 4.16 31.86 5083.05 6779.37 6779.37 78.10 6779.82 0.66 1.60 BP _MWD+IFR+MS 232 11119.08 87.43 4.79 31.88 5084.89 6811.10 6811.10 80.58 6811.58 0.68 5.04 BP _MWD+IFR+MS 233 11151.37 88.80 6.49 32.29 5085.95 6843.21 6843.21 83.76 6843.73 0.70 6.76 BP _MWD+IFR+MS 234 11182.47 88.94 6.30 31.10 5086.57 6874.11 6874.11 87.22 6874.67 0.73 0.76 BP _MWD+IFR+MS 235 11214.65 88.77 6.19 32.38 5087.21 6906.29 6906.29 90.74 6906.89 0.75 0.63 BP MWD+IFR+MS 236 11245.97 88.56 5.63 31.12 5087.94 6937.24 6937.24 93.94 6937.88 0.78 1.92 BP _MWD+IFR+MS 237 11275.75 88.49 5.74 29.78 5088.71 6966.87 6966.87 96.89 6967.54 0.80 0.44 BP _MWD+IFR+MS 238 11310.99 88.42 5.35 35.24 5089.66 7001.93 7001.93 100.30 7002.65 0.82 1.12 BP _MWD+IFR+MS 239 11342.94 88.77 6.39 31.95 5090.44 7033.70 7033.70 103.56 7034.46 0.84 3.43 BP _MWD+IFR+MS 240 11374.34 89.42 7.86 31.40 5090.93 7064.85 7064.85 107.46 7065.67 0.87 5.12 BP _MWD+IFR+MS A SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 10 of 11 ___ Seq Measured ------ Incl Azimuth Course -------- TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (f t) (ft) (ft) (deg) 100f) type (deg) --- 241 -------- 11406.17 ------ 89.25 ------- 8.11 ------ 31.83 5091.30 7096.37 7096.37 111.88 7097.25 0.90 0.95 BP _MWD+IFR+MS 242 11438.85 88.87 7.71 32.68 5091.84 7128.74 7128.74 116.38 7129.69 0.94 1.69 BP _MWD+IFR+MS 243 11469.89 88.60 7.02 31.04 5092.53 7159.51 7159.51 120.35 7160.52 0.96 2.39 BP _MWD+IFR+MS 244 11500.61 88.60 7.93 30.72 5093.28 7189.96 7189.96 124.35 7191.04 0.99 2.96 BP _MWD+IFR+MS 245 11533.97 88.49 8.11 33.36 5094.12 7222.98 7222.98 129.00 7224.14 1.02 0.63 BP _MWD+IFR+MS 246 11565.49 88.12 8.35 31.52 5095.06 7254.17 7254.17 133.51 7255.40 1.05 1.40 BP _MWD+IFR+MS 247 11596.92 87.22 8.52 31.43 5096.33 7285.23 7285.23 138.12 7286.54 1.09 2.91 BP _MWD+IFR+MS 248 11628.99 87.12 8.94 32.07 5097.92 7316.89 7316.89 142.98 7318.29 1.12 1.34 BP _MWD+IFR+MS 249 11661.10 87.09 8.50 32.11 5099.54 7348.59 7348.59 147.84 7350.08 1.15 1.37 BP _MWD+IFR+MS 250 11692.90 87.26 8.76 31.80 5101.11 7379.99 7379.99 152.61 7381.57 1.18 0.98 BP _MWD+IFR+MS 251 11724.98 87.98 8.28 32.08 5102.44 7411.69 7411.69 157.36 7413.36 1.22 2.70 BP _MWD+IFR+MS 252 11757.40 88.01 8.68 32.42 5103.57 7443.73 7443.73 162.13 7445.50 1.25 1.24 BP _MWD+IFR+MS 253 11788.63 88.05 8.00 31.23 5104.65 7474.62 7474.62 166.66 7476.47 1.28 2.18 BP _MWD+IFR+MS 254 11819.72 87.80 7.96 31.09 5105.77 7505.38 7505.38 170.97 7507.33 1.30 0.81 BP _MWD+IFR+MS 255 11851.70 89.21 10.65 31.98 5106.61 7536.93 7536.93 176.14 7538.99 1.34 9.49 BP _MWD+IFR+MS 256 11884.21 88.87 11.96 32.51 5107.15 7568.80 7568.80 182.52 7571.00 1.38 4.16 BP _MWD+IFR+MS 257 11915.80 88.36 13.08 31.59 5107.91 7599.63 7599.63 189.36 7601.99 1.43 3.89 BP _MWD+IFR+MS 258 11947.14 88.70 14.58 31.34 5108.72 7630.05 7630.05 196.85 7632.59 1.48 4.91 BP _MWD+IFR+MS 259 11978.94 89.35 15.02 31.80 5109.26 7660.79 7660.79 204.97 7663.54 1.53 2.47 BP _MWD+IFR+MS 260 12011.04 90.34 13.04 32.10 5109.35 7691.93 7691.93 212.75 7694.88 1.58 6.90 BP _MWD+IFR+MS 261 12043.06 91.37 11.63 32.02 5108.87 7723.21 7723.21 219.59 7726.33 1.63 5.45 BP _MWD+IFR+MS 262 12074.75 89.90 9.62 31.69 5108.52 7754.35 7754.35 225.43 7757.63 1.67 7.86 BP _MWD+IFR+MS 263 12106.64 88.36 9.44 31.89 5109.00 7785.80 7785.80 230.71 7789.22 1.70 4.86 BP _MWD+IFR+MS 264 12138.71 88.08 9.37 32.07 5110.00 7817.42 7817.42 235.95 7820.98 1.73 0.90 BP _MWD+IFR+MS 265 12170.39 68.19 7.82 31.68 5111.03 7848.73 7848.73 240.68 7852.42 1.76 4.90 BP _MWD+IFR+MS 266 12202.71 88.70 6.05 32.32 5111.91 7880.80 7880.80 244.58 7884.59 1.78 5.70 BP _MWD+IFR+MS 267 12234.73 88.29 6.93 32.02 5112.75 7912.60 7912.60 248.20 7916.49 1.80 3.03 BP _MWD+IFR+MS 268 12266.63 87.88 6.50 31.90 5113.81 7944.27 7944.27 251.93 7948.26 1.82 1.86 BP _MWD+IFR+MS 269 12298.98 88.12 7.81 32.35 5114.94 7976.34 7976.34 255.96 7980.45 1.84 4.11 BP _MWD+IFR+MS 270 12329.10 89.11 9.49 30.12 5115.67 8006.11 8006.11 260.49 8010.35 1.86 6.47 BP _MWD+IFR+MS SCHLUMBERGER Survey Report 30-Jan-2007 20:32:14 Page 11 of 11 ___ Seq ________ Measured ______ Incl _______ Azimuth ____-- Course -------- TVD -------- Vertical -- p Dis 1 Dis 1 P Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/w- displ Azim (deg/ tool Corr - (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type (deg) 271 12360 32 89 49 10.74 31 22 5116 05 8036 84 8036.84 265.97 8041.24 1.90 4.18 BP_MWD+IFR+MS 272 12392.88 89.25 10.90 32.56 5116.41 8068.82 8068.82 272.08 8073.41 1.93 0.89 BP_MWD+IFR+MS 273 12424.91 68.43 10.06 32.03 5117.06 6100.31 8100.31 277.90 8105.08 1.96 3.66 BP_MWD+IFR+MS 274 12457.26 89.01 8.32 32.35 5117.78 8132.24 6132.24 283.07 8137.16 1.99 5.67 BP_MWD+IFR+MS 275 12489.42 89.25 8.86 32.16 5118.27 8164.03 8164.03 287.87 8169.10 2.02 1.84 BP_MWD+IFR+MS 276 12520.77 89.25 9.27 31.35 5118.68 8194.99 8194.99 292.81 8200.22 2.05 1.31 BP_MWD+IFR+MS 277 12552.05 89.21 8.53 31.28 5119.10 8225.89 8225.89 297.65 8231.27 2.07 2.37 BP_MWD+IFR+MS 278 12573.04 89.21 9.40 20.99 5119.39 8246.62 8246.62 300.92 8252.11 2.09 4.14 BP_MWD+IFR+MS 279 12630.00 89.21 9.40 56.96 5120.17 8302.81 8302.81 310.22 8308.60 2.14 0.00 Proj. to TD [(c)2007 IDEAL ID12 OC O1] r U Schlem~erger Schlumberger-DCS 2525 Gambell St, Suife 400 Anchorage, AK 99503-2838 ATTN: Beth ~Clo - I S55 Well Job # Log Description NO. 4164 Company: Alaska Oil 8 Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Aurora Borealis Orion Date BL Color CD V-217 11638607 CH EDIT USIT PDC 01/15107 1 V-217 11638607 USIT CEMENT EVALUATION 01/16107 1 V-217 11638607 USIT CORROSION EVALUATION 01/15/07 1 W-204 11638608 MDT Ot/16/07 1 V-221 40011617 OH EDIT MWDlLWD _ 03/03/OS 2 1 PLEASE ACKNOWLEDGE RECEIPT BV SIGNING AND RETURNING ONE COPY EACH TJ: BP Exploration (Alaska) Inc. ~~. i C'"~~~ E~~`""' Petrotechnical Data Center LR2-1 r` `:` of '~ ~~ - '- ~ ~'I 900 E Benson Blvd ~-- Anchorage AK 99508-4254 )) (}(' j }~ ~, P,"1 P...~ ~11U1 Date Delivered: ~~b 9~~' `r-" :,~ 5 e e'-x,,,. Q Pgg'it'~~ f1Y~~~8~,R9~0e nlt PV.... .. ~ ., Schlumberger-DCS 2525 Gambell St Suite 400 Anchorage, AK 99503-2838 '~ ATTN: Belh i Received by: o2lz7lzoo7 03!02/7007 ~~ ,. Sc~tam6ergcr Schlumberger-DCS 2525 Gambell St, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth ~~~y~~V Well Job # Log Description NO. 4179 Company: Alaska Oil & Gas Cons Comm AHn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Polaris Borealis Orion Date BL Color CD L-213 11212849 CH EDIT USIT PDC-GR 04/27106 1 W-204 71630451 CEMENT BOND 81MAGE LOG 02/02107 1 W-205L2 71626070 RSTIWFL 02105107 1 5-213A 11628755 MEMORY GLS 02114107 1 V-105 11626370 IPROFILEIWFL 01/29107 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TG: BP Exploration (Alaska)Inc. Petrotechnical Data Center LR2 1 ~ ~ ~~ i 900 E Benson Blvd ~ '" ~~ ~ ' "'~ Anchorage AK 99508-4254 ~~ -' ~-~ - ~'~-^" ~~ '-"' f -- Date Delivered ~ ",~,~s~a ;., ~), ~zrar~'~ ~~ ,, ,,- r~n?~ -r~„ Schlumberger-DCS 2525 Gambell St, Suite 400 Anchorage, AK 99503-2838 ATTN: Befh l i ~, ~I Received by 03/13/07 r ~'-`-"" • • Schlumberger Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: Christine Mahnken (AOGCC) Well No W-204 Date Dispatched: 2-Mar-07 Installation/Rig Nabors-7ES Dispatched By: Nate Rose LWD Log Delivery V1.1,10-02-03 Data No Of Prints No of Floppies Surveys 2 1 Please sign and return to: names H. Jonnson Received By: BP Exploration (Alaska) Inc. Petrotechnical Data Center (LR2-1) ~ /1 / ? ~v-. _ "') ~~ ~ 900 E. Benson Blvd. Q( j d / l/{/( ' , Anchorage, Alaska 99508 Fax:907-564-4005 e-mail address: johnsojhC~bp.com ~ °~ ~ ~s~ 8 ~ ~ Schlumberger Drilling & Measurements MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: Christine Mahnken (AOGCC) Well No W-204P81 Date Dispatched: 2-Mar-07 Installation/Rig Nabors-7ES Dispatched By: Nate Rose LWD Log Delivery V1.1,10-02-03 Data No Of Prints No of Floppies Surveys 2 1 Please sign and return to: James H.,lohnson ReCelved By: BP Exploration (Alaska) Inc. Petrotechnical Data Center (LR2-1) ^ - ~ 900 E. Benson Blvd ~~ ., // !/V~ ~/1"IVAAV Anchorage, Alaska 99508 , Fax:907-564-4005 e-mail address: johnsojhC~3bp.com a o~ --/~~ Maunder, Thomas E (DOA) From: Allen, Kenneth W [Kenneth.Allen@bp.com] Sent: Friday, January 26, 2007 10:18 AM To: Thomas Maunder Cc: Tirpack, Robert B; NSU, ADW Drlg Rig 7 ES Subject: W-204 Status 2nd update Tom, Page 1 of 1 We drilled to the TD we proposed for W-204PB1 (directional plan '13) and did not find a fault. This gave BP enough evidence (at this time) to ensure we would not be drilling all the laterals between two faults. That would have effectively isolated these Laterals from any support from future injectors. At this time we have pulled back to our Pilot hole (W-204PB1) kick off point and sidetracked the well This sidetrack will continue to drill along the previously permitted targets (W-204 directional plan -Permit #206-158). Thanks again for the quick help and review that allowed BP to drill the W-204BP1 pilot hole. This helped BP and our partners to ensure these laterals can be supported in the future. Ken Allen Operations Drilling Engineer GPB Rotary Mobile: 907.748.3907 Office: 907.564.4366 e-mail: Kenneth.Allen@BP.com 7/10/2007 • Maunder, Thomas E (DOA) From: Alien, Kenneth W [Kenneth.Allen@bp.com] Sent: Wednesday, January 24, 2007 9:02 AM To: Thomas Maunder Subject: W 204 Status Tam, Page 1 of 1 Thanks again for the help yesterday. Just thought 1 would give you a quick update. We had a little slower drilling ROP than expected so we are still heading toward the pilot hole (W-204P61) TD. We have not seen a fault yet, but we have a ways to go. 1'll be back in touch when we know more. Thanks, Ken Allen Operations Drilling Engineer GPB Rotary Mobile: 907.748.3907 Office: 907.564.4366 e-mail: Kenneth.Allen a~BP,com 7/10/2007 Re: W-204 pilot hole • • Subject: Re: W-204 pilot hole From: Thomas Maunder <tom_maunder@admin.state,ak.us> Date: Tue, 23 Jan 2007 15:05:23 -0900 'fo: "Allen, Kenneth ~~~~" =Kenncth.~~llenru'bp.conl=, C'C: ~~ hirpack, R~>hert 13" ~~ IZobert_~hirp~irk'ci;I3P.cc~m-~, ~'~rt Saltmarsh <art saltmarsh(uadmin.statc.ak.us> Ken, - I S Thanks for the information. After discussing your plan, it has been determined that no additional approval is necessary. The changed well course is being drilled for information that will help confirm or indicate a change is necessary in the permitted bottomhole locations. The new segment is in zone and will not be retained. You have properly named the segment PB 1. You may proceed with the drilling operations. Call or message with any questions. Tom Maunder, PE AOGCC Allen, Kenneth W wrote, On 1/23/2007 2:39 PM: Tom, As discussed on the phone, BP would like to deviate from our current permit to drill and drill a short pilot hole within the Schrader (OBd) formation. I have attached the pilot hole directional plan which deviates to the East 800' from the current permitted lateral (permit #206-158). This pilot hole is needed to confirm BP does not place these 3 laterals in a very tightly enclosed fault block limiting the possible oil recovery. BP's plan would be to drill from our current TD 7576' MD (1700' MD into the W-204 lateral as shown on the attached directional plan) and turn the well bore to the East. This should allow BP to discern if we are drilling between two closely spaced faults. Once this "pilot hole" is TD'd and the information is gathered there are two options seen at this time. The 1St will be to pull back to the 7576' depth (the point at which the pilot hole started turning East) and sidetrack the well bore drilling to the originally permitted TD. If a fault is present then a new set of targets (for all 3 laterals) will be sent to the AOGCC for all 3 laterals to be re-permitted about 500'-600' offset to the East drilling in a Northerly direction. In either scenario, BP plans to leave this pilot hole leg open and uncemented. The drilling liner that crosses this open hole junction will have blank, unslotted, pipe with an open hole packer on each end to isolate it from the final completion. The Attached "Proposed Completion" shows the Pilot Hole deviating from the lowest lateral in Green. The TD target for this directional is at the following point: X = 612,860' Y = 5,965,000' Z = 5,030' TVDss (Same formation as previously permitted lateral for W-204) Sec 16, T 11 N, R 12E FEL: 294.2' FSL: 3730.7' Please let me know if you need any further information to make a decision. N-7ES has currently stopped drilling until we get approval from the AOGCC to proceed with the pilot hole drilling. Thanks for your time, Ken Allen 1 of~n 1/23/2007 3:10 PM W-204, L1, 8~ L2 PROPOSED COMPLETION TREE: FMC 4-1/16" 5M WELLHEAD: FMC Gen 5 System A53 ERW Insulated @ 109' 5 Ibfft 20" X 34" 215 11". 5M csg,head w/ 7" mandrel hanger & packofi , . ,,, 11" x 11", 5M, tCg spool w/ `Halliburton X-Nipple (3.813" ID) @ 2200' TVD 11" x 4-112" tubing hanger with control line ports 11" X 4-1116" Adaptor Flange 4-112", 12.6 Iblft, 13CR-80, Orig KB etev (N-7ES) _' - - Vam'T'op Coupling OD: 4.937" DriftflD : 3.833"13.958" 10-314", 45.5# L-80 BTC Csg @ 3,346' MD GLM Cl.~cl,._a-n_ #4 - 2504' TVD - 4112" X 1" KBG-2 - DV #3 - 3504' TVD - 4=112" X 1" KBG-2 - DCK 4-112", 12.6# 13CR-$0 VamTop Tubing #2 - 5 jis abave sliding sleeve - 4-1f2° X 1" KBG-2 - DV #1 - 2 jts abave sliding sleeve • 4-112" X 1" KBG-2 - DV ~,~ 4.5` Baker sliding sleeve with 3.813" ID @ Phoenix ~., 7-5/8" X 5-1/2" Baker PRM Packer @ Pressure ~~ ~' Gauge ~' % 7-5l8", 29.7#, L-80, TCII to -4,946' with control ' r. ` Casing Drift: 6.75" lines to surface O Casing ID: 6.875" Est TOC 4,146' __,._,..,,Hallitwrton X-Nipples (3.813` iD) ~ • "x',.4.5"WLEG@5,800'MD ~ Versapro SFMOBM in each Lateral and in mother bore trom tbg ta,! down t~nctton ~ecfficattons: ~ F-3+~ o8a Lateral iS.32fi t2,650'~ Junction ID through LEM -~ Mo+lule witriaut diverter. 3.68" " """"'"`.,t' LEM run with internal sealbores ,,~,,,,,,-,~ to allow the use of isolation _ `"`"' """ ~ " ~' sleeve across window. RA Tay TBD ~ Swell packer placement TBD ~\ Open Hole Sidetrack po;nl -7576' \` 6-314" OBc Lateral 5,516'-12,652' 7D Pilot Hole W- 1 -8849' No CM to r in Piimt Ho Baker Hughes Hoakwall Hanger Wndow in 7-51$" casirry ~/ ' Well Inctinaban @ Window = -65 RA Tag TBD - - -~ ' Baker Hoghes Htwkwa8 Banger r!_=t ~ ,...: Window in 7-518' casing Swell packer placement TBD /Js Well Inclination to Window = ^72 / l ~~~ . RA Tag TBD ~ ~- ~ . 'ii--r~'' '~+ - . ..-.. ., a , -5l8". 29.7#, L-80, BTC-M @ 5861'._._ _._m ~_..__ __~_......_......._- Casing Orift: 6.75" 6-314" OBd Lateral 61'- 12,652' Casing ID: G.875" /////~w-+++~~~~!..~~tt~~~~,,,,, .'~.af t',. filnv. AY ClSMMEN7S Wi {„D IId20/Tt166 KWA Lovot 3 Mutti•Lntc rai, a-[!3" GL Com Ictron ~`` ~'/~~"ry~~,f~4~ ! API NtJ: 50-02rJ ~Rt~~ 50-024.. ~o-nzy. 1VFLL- W-?OA Ml_ Kn_a?s? • ~ p Schlumherger ~0~-~5~ WELL W-204PB1 (P13) FIELD Prudhoe Bay Unit - WOA STRUCTURE W-PAD _ Pa9GGM ?006 Dip: 90 86]' Oa Jan uarv 3 0] -0 2 a 9uNaca LOCNOn N9D21 Nas4e Slab Phnea, Zone Od, US Feel ' NTO 1)5].180 Nnbny 5959808 12 fiU5 GrN Cllpv -085935553' .. al Mscelbnaous W W 209 .VD ReI Robry Table X815311 above MSLI .20dP61 tP 131 6rvy Dale. January 33.200] MuEel aga 238] T ST6JT9 FS L Wd95 J3 2fi E n9 12099 2MU5 F 09898 d262J -600 -300 0 300 600 900 4200 3900 3600 n n n Z 3300 0 0 M C N v 3000 v v v 2700 2400 2100 4200 3900 3600 3300 3000 2700 2400 2100 -600 -300 0 300 600 900 «< W Scale= 1(in):300(ft) E »> ~~ Schlumher~er W-204PB1 (P13) P roposal Report Date: January 23, 2007 Survey 1 DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska VeAical Section Azimuth: 1.550° field: Prudhoe Bay Unit- WOA VeAical Section Origin: N 0.000 ft, E 0.000 ft Structure 1 Slot: ~r~ W-PAD / W-204 ~ TVD Reference Datum: Rotary Table Well: ~; ~ W-204 '' TVD Reference Elevation: 81.52 ft relative to MSL Borehole: ~~~ W-204 Sea Bed 1 Ground Levi Elevation: 53.00 ft relative to MSL UWIIAPHF: 50292333300 Magnetic Declination: 23.677° Survey Name 1 Date: W-204PB1 (P13) I January 23, 2007 Total Field SVengeh: 57637.751 nT Tort I AHD 1 DDI I ERD ratio: 230.679° 14689.38 ft / 6.271 10.914 Magnetic Dip: 60.887° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feet Declination Date: January 23, 2007 Location LaULong: N 70.29921663, W 149.09253499 Magnetic Declination Model: BGGM 2006 Location Grid NIE YIX: N 5959836.120 ftUS, E 612049.120 ftUS North Reference: True North Grid Convergence Angle: +0.85435553° Total Corr Mag North •> True North: +23.877° Grid Scale Factor: 0.99991426 Local Coordinates Referenced To: Well Head Measured clination I Azimuth SulrSea TVD TVD Vertical NS EW Gravit y DLS Build Rate Walk Rate Northing Eaating LatRude Longitude Comments Depth n Section Tool Face d k fi fi fi k da de 100 fi d H00 fi de 1100 fi fiUS fiUS ft d e cn~~ co cnna ~n v7~n rs~ 39tR 30 136.10 7O.89R 8.55 -2.21 -8.27 5963055.81 612137.20 N 70.30800878 W 149.09143244 ue In survey KOP Crv 8/100 ra iu.4o 7576.00 7600.00 7650.00 ~ ~.o~ 92.00 91.90 91.68 ~,, ~.~„ 352.00 353.92 357.91 ,...,,....~ 5011.44 5010.62 5009.06 .,........, 5092.96 5092.14 5090.58 .,___.- • 3285.33 3309.05 3358.77 -- - -- 3283.11 3306.91 3356.75 126.69 123.75 120.19 92.99R 93.O6R 93.18R 0.84 8.00 8.00 0.27 -0.42 -0.44 0.79 7.99 7.99 5963120.46 5963144.22 5963194.00 612126.83 612123.54 612119.24 N 70.30818582 W 149. 9 N 70.30825085 W 149.09153246 N 70.30838700 W 149.09156128 7700.00 7750.00 7800.00 7850.00 7900.00 91.45 91.22 90.98 90.74 90.49 1.91 5.90 9.90 13.89 17.88 5007.69 5006.52 5005.56 5004.81 5004.27 5089.21 5088.04 5087.08 5086.33 5085.79 3408.72 3458.66 3508.33 3557.50 3605.93 3406.72 3456.58 3506.09 3555.00 3603.08 120.11 123.52 130.39 140.69 154.37 93.29R 93.38R 93.46R 93.52R 93.56R 8.00 8.00 8.00 8.00 8.00 -0.45 -0.47 -0.48 -0.49 -0.49 7.99 7,99 7.99 7.99 7.99 5963243.95 5963293.86 5963343.45 5963392.51 5963440.78 612118.42 612121.08 612127.21 612136.78 612149.74 N 70.30852352 W 149.09156189 N 70.30865973 W 149.09153430 N 70.30879498 W 149.09147864 N 70.30892860 W 149.09139517 N 70.30905995 W 149.09128430 7950.00 8000.00 8050.00 8100.00 8150.00 90.24 89.99 89.74 89.49 89.24 21.88 25.87 29.86 33.85 37.84 5003.95 5003.85 5003.96 5004.30 5004.85 5085.47 5085.37 5085.48 5085.82 5086.37 3653.39 3699.63 3744.44 3787.60 3828.89 3650.09 3695.80 3739.99 3782.45 3822.97 171.37 191.60 214.97 241.35 270.62 93.59R 93.6OR 93.59R 93.56R 93.52R 8.00 8.00 8.00 8.00 8.00 -0.50 -0.50 -0.50 -0.50 -0.49 7.98 7.98 7.98 7.98 7.99 5963488.04 5963534.04 5963578.58 5963621.42 5963662.37 612166.04 612185.58 612208.28 612234.03 612262.69 N 70.30918837 W .149.09114658 N 70.30931326 W 149.09098267 N 70.30943399 W 149.09079338 N 70.30954998 W 149.09057962 N 70.30966067 W 149.090342 8200.00 8250.00 8300.00 8350.00 8400.00 89.00 88.76 88.53 88.30 88.09 41.84 45.83 49.83 53.82 57.82 5005.62 5006.59 5007.78 5009.16 5010.73 5087.14 5088.11 5089.30 5090.68 5092.25 3868.12 3905.10 3939.64 3971.58 4000.76 3861.35 3897.40 3930.96 3961.84 3989.91 302.65 337.26 374.30 413.58 454.92 93.46R 93.38R 93.28R 93.17R 93.O5R 8.00 8.00 8.00 8.00 8.00 -0.49 -0.48 -0.47 -0.45 -0.43 7.99 7.99 7.99 7.99 7.99 5963701.21 5963737.78 5963771.87 5963803.34 5963832.02 612294.13 612328.21 612364.74 612403.5 612444.46 N 70.30976552 W 149.090082 N 70.30986401 W 149.08980251 N 70.30995566 W 149.08950241 N 70.31004003 W 149.08918413 N 70.31011672 W 149.08884923 nd Crv TD 8450.00 8500.00 8550.00 8569.96 8849.80 87.88 87.68 87.49 87.42 87.42 61.81 65.81 69.81 71.41 71.41 5012.50 5014.43 5016.54 5017.42 5030.00 5094.02 .5095.95 5096.06 5098.94 5111.52 4027.04 4050.28 4070.39 4077.52 4173.78 4015.03 4037.08 4055.94. 4062.56 4151.69 498.10 542.93 589.17 607.98 872.95 92.91 R 92.75R 92.58R -- -- 8.00 8.00 8.00 8.00 0.00 -0.42 -0.40 -0.37 -0.36 0.00 7.99 8.00 8.00 8.00 0.00 5963857.78 5963880.49 5963900.04 5963906.93 5964000.00 612487.26 612531.75 .612577.70 612596.41 612860.00 N 70.31018533 W 149.08849933 N 70.31024554 W 149.08813614 N 70.31029707 W 149.08776144 N 70.31031514 W 149.08760907 N 70.31055858 W 149.08546213 Leaal Descriution: Northi ng (Y) [ftUS] Easting (X) [ftUS] Surface : 4859 FSL 1177 FEL S21 T11 N R12E UM 5959836.12 612048.12 TD / BHL : 3730 FSL 294 FEL S16 T11 N R12E UM 5964000.00 612860.00 WeIlDesign Ver SP 2.1 Bld(doc4Ox_1OO) W-204\W--204\W-204\W-2O4P81 (P13) Generated 1/23/2007 2:23 PM Page 1 of 1 by Schlumherger Art LL FlELD STRUCTURE W-204P61 (P13) Prudhoe Bay Unit - WOA W-PAD MaB^Blic Paramelors Su~iace LocaOOn tND2] Naxka Slale Nail US.Zane D4. U8 Fe.n MiuaYaneous Mo6e1 eGGM 2008 qp. 60.66]' Dale January 23, 2001 Lat: NT01J 5].1 &l NoMinB 5959636.12 flU5 rie COnv •06S4JS5S3 Slol W20a NOReI. Rotary Taela (81.62fl aeove MSll Mao Dec •23.6JJ' FS 5]63].6 nT Lon W1x9633.126 Easenp. 6130x9.12flU9 6cde fac10.99951426 ~;~ Plan W20xPe1 (Pt 3) Sryy Date J ary 23. 200] 0 4800 v C 0) 5200 1600 2000 2400 280C 3200 3600 4000 4400 Tie In crv enoo cwrent •i 4800 crv TD 5200 W-204P81 (P 13) r 1600 2000 2400 2800 3200 3600 4000 4400 Vertical Section (ft) Azim = 1.55°, Scale = 1(in):400(ft) Origin = 0 N/-S, 0 E/-V BP Alaska Anticollision Report -- - - Company: BP Amoco - - - Date: 1/23!2007 Time: 14:24:33 Page: 1 Field: Prudhoe Bay Reference Site: PB W Pad' Co-ordinate(NE) Reference: Well: W-204 drilling, True North Reference WeB: W-204 drilling Vertical (TVI)) Reference: W-204 81:5 Db: Orade Reference Wellpath: Plan-W-204P61 - - - - - - GLOBAL SCAN APPLIED. All wellpaths within 200'+ 100/1000 of reference -There are tEf4iiH~ells in thisRliBiipal Plan & PLANNED PROGRAM Interpolation Method: MD Interval: 100.00 ft Error Model: ISCWSA Ellipse Depth Range: 7575.00 to 8849.80 ft Scan Method: Trav Cylinder North Maximum Radius: 1082.09 ft Error Surface: Ellipse + Casing Survey Program for Definitive Wellpath Date: 1/23!2007 Validated: No Version: 1 Planned From To Survey Toolcode Tool Name ft ft __ --- -- - - --- - _ _ 00 700.00 Survey #1 GYD CT DMS (100.00-7 100 __ - GYD-CT-DMS Gyrodata cont.drillpipe m/s . 00 7510.48 Survey #2 MWD+IFR+MS (797.00-7 797 MWD+IFR+MS MWD +IFR + Multi Station . 7510.48 8849.80 Planned: Plan #13 V1 MWD+IFR+MS MWD +IFR + Multi Station Casing Points MD TVD Diameter Hole S~z@ _ Name ft ft in in - 3337.00 3318.58 10.750 13.500 10 3/4" 5846.00 5119.48 7.625 9.875 7 5/8" 8849.80 5111.52 6.750 6.750 6.75 open Summary _ -- __ -- -- -- __ .. - - _- --- <._ -- Offset We[Ipath - - - _ -~ Reference Offset Ctr-Ctr No-Go Allowable - Site Well Wellpath NID MD Distance Area Deviation Warning ft ft ft ft ft PB WPad Plan W-202 Plan W-202 V3 Plan: W- __ _ -- 8582.12 6800.00 308.76 84.70 224.06 Pass: Major Risk PB W Pad Plan W-208 Plan W-208 V2 Plan: W- Out of range PB W Pad Plan W-213 Plan W-213 VS Plan: PI Out of range Out of range PB W Pad Plan W-214 Plan W-214 V5 Plan: PI Out of range PB W Pad Plan W-216 Plan W-216 V11 Plan: W Out of range PB W Pad Plan W-217 Plan W-217 V3 Plan: W- Out of range PB W Pad Plan W-218 Plan W-218 V4 Plan: W- Out of range PB W Pad Plan W-219 Plan W-219 V5 Plan: W- Out of range PB W Pad Plan W-221 Plan W-221 VS Plan: W- Out of range PB W Pad W-15 W-15 V1 Out of range PB W Pad W-15 W-15A V10 Out of range PB W Pad W-15 W-15P61 V6 Out of range PB W Pad W-15 W-15PB2 V1 Out of range PB W Pad W-16 W-16 V3 Out of range PB W Pad W-16 W-16A V3 Out of range PB W Pad W-16 W-16AP61 V1 Out of range PB W Pad W-16 W-16L1 V3 Out of range PB W Pad W-17 W-17 V4 Out of range PB W Pad W-17 W-17A V9 Out of range PB W Pad W-18 W-18 V1 Out of range PB W Pad W-19 W-19 V2 Out of range PB W Pad W-19 W-19A V1 Out of range PB W Pad W-19 W-19AL1 V3 Out of range PB W Pad W-19 W-19AL1 P61 V1 Out of range PB W Pad W-19 W-19AL1 P62 V1 Out of range PB W Pad W-200P61 W-200P61 V7 Out of range PB W Pad W-200 W-200 V6 Out of range PB W Pad PB W Pad W-201 W-204 drilling W-201 V4 Plan W-204 OBd Alt V2 8625.41 8500.00 97.23 72.70 24.53 Pass: Major Risk PB W Pad W-204 drilling Plan W-204L1 OBc Alt V 8635.55 8400.00 35.93 78.78 -42.85 FAIL: Major Risk 35 FAIL: Major Risk 80 1 9 78 PB W Pad W-204 drilling Plan W-204L1 OBc V4 PI 7663.81 7700.00 0 . - . 79.44 5 33 Pass: Major Risk 84 0 17 65 66 PB W Pad B W P d W-204 drilling W-204 drillin Plan W-204L2 OBa Alt V 8614.24 8400.0 Plan W-204L2 OBa V3 PI 7668.59 7700.00 . . . .107.69 135.60 -27.91 FAIL: Major Risk a P PB W Pad g W-204 drilling Plan W-204P61 OBd Alt 1 00 00 7576 7576 Out of range 50 -122.19 FAIL: Major Risk 31 122 0 PB W Pad W-204 drilling W-204 drilling V1 . . . . Out of range PB W Pad W-20 W-20 V1 Out of range PB W Pad W-21 W-21 V3 Out of range PB W Pad W-21 W-21 A V12 Out of range PB W Pad W-22 W-22 V1 Out of range PB W Pad W-23 W-23 V3 Out of range PB W Pad W-23 W-23A V5 • ! BP Alaska Anticollision Report Company: BP Amoca Date: 1/23/2007 Time: 14:24:33 Pagec 2 FieM: Prudhoe Bay.. Reference Site: PB W Pad ' Co-ordinate(NE) Reference:- WeIL W-204 drilling, True North Reference Well: W-204 drilling Vertical ('FVD) Reference: W-204 81.5 Reference. Wellpath: Plan W-204PB1 Db: Oracle Summary .- OffseE-Wellpath ~ Reference Offset. Ctr-Ctr li7o-Go Allowable Site Well Wellpath MD MD Distance Area Deviation Warning $ ft ft it ft PB W Pad W-24 W-24 V1 Out of range PB W Pad W-32 W-32 V6 Out of range PB W Pad W-32 W-32A V3 Out of range PB W Pad W-32 W-32AP61 V13 Out of range FRANK H. MURKOWSKl, GOVERNOR 333 W. T" AVENUE, SUITE 100 ANCHOFAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907)276-7542 Robert Tirpack Senior Drilling Engineer BP Exploration (Alaska) Inc. PO Box 196612 Anchorage, AK 99519 Re: Prudhoe Bay Field, Polaris Oil Pool, W-204 BP Exploration (Alaska) Inc. Permit No: 206-158 Surface Location: 4859' FSL, 1177' FEL, SEC. 21, T 11 N, R 12E, UM Bottomhole Location: 2601' FSL, 933' FEL, SEC. 09, T 11 N, R 12E, UM Dear Mr. Tirpack: Enclosed is the approved application for permit to drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. .Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659-3607 (pager). DATED this. day of November, 2006 cc: Department of Fish 8z; Game, Habitat Section w/ o encl. Department of Environmental Conservation w/o encl. 11 V~ STATE OF ALASKA ALAS IL AND GAS CONSERVATION COMMI~N PERMIT TO DRILL 20 AAC 25.005 G~.. ~~. Z„I~2OP/p -~ .~ ~.. ~~- ¢ > ~ '~ a ',.. gip` ~'. ~'.J ( ~7 1a. Type of work ® Drill ^ Redrill ^ Re-Entry 1b. Current Well Class ^ Exploratory ~ ^ Development Gas ^ Service ^ Multiple Zone ^ Stratigraphic Test ®Development Oil ^ Single Zone 1c. Specify if well is propgdfg~:,,. ^ Coalbed Methane +~] Ga§ Hydrates ^ Shale Gas 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 6194193 11. Well Name and Number: W-204 ~ 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 12662 TVD 5207 12. Field /Pool(s): Prudhoe Bay Field /Polaris Pool 4a. Location of Well (Governmental Section): Surface: 4859' FSL 1177' FEL 21 T11N R12E UM SEC 7. Property Designation: ADL 028261 , , , . , , Top of Productive Horizon: 1119' FSL, 899' FEL, SEC. 16, T11 N, R12E, UM (OB d) 8. Land Use Permit: 13. Approximate Spud Date: December 8, 2006 Total Depth: 2601' FSL, 933' FEL, SEC. 09, T11N, R12E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 16,020' 4b. Location of Well (State Base Plane Coordinates): Surface: x-612049 y-5959836 Zone-ASP4 10. KB Elevation Plan (Height above GL): 81.5 feet 15. Distance to Nearest Well Within Pool: 258' 16. Deviated Wells: Kickoff Depth: 2437 feet Maximum Hole An le: 92 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 2250 Surface: 1750 18. Casin Pro r m: S cifi f n To - S in th -Bo ttom n i f ment c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD ND includin sta a data 48" 20"x34" 215.5# A53 Weld 110' Surface Surf ce 110' 110' 260 sx Arctic Set A rox. 13-1/2" 10-3/4" 45.5# L-80 BTC 3346' Surface Surface 3 6' 3327' 599 sx AS Lite 441 sx Class 'G' / -7/ " 7-5/ " 29.7# L-80 BTC-M/TC-II g61' urFa a Surfa 1' 5132' 431 x I 'G' 6-3/4" 4-1l2" 12.6# L-80 IBT 6801' 5861' 5131' 126 2' 5206' Uncemented Slotted Liner 19. PRESE NT 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 TVD (ft): Junk (measured): `asing Length ze ement ohlme MD TVD Conductor /Structural Surface Intermediate Pr ion Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): 20. Attachments ®Filing Fee, $100 ^ BOP Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Hazard Analysis ® Property Plat ^ Diverter Sketch ^ Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct. Printed Name Robert Tirpack ~ / Si nature ~`?.TL-r~~ ~ Contact Ken Allen, 564-4366 Title Senior Drilling Engineer Prepared By Name/Number: Phone 564-4166 Date ~~ /s~'llb Terrie Hubble, 564-4628 Commission Use Onl Permit To Drill Numb r' - API Number: 50-D 2 - ~, 3,3' Permit Approval /. Da ' oZ, (" ~ t.( See cover letter for th r re it m nts Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained shales: Samples Req'd: ^ Yes ~No Mud Log Req'd: ^ Yes No Q ST ~ ~ ~Jt -}-~ 2~SC~0 ~ ~~ HZS Measures:~Yes ^ No Dir i nal Survey Req'd:~Yes ^ No Other: I~ APPROVED BY THE COMMISSION Date + ?i ~~ ,COMMISSIONER Form 10-401 Revised 12/2005 (l [~ ~ (~ ~ ~~,~~ ~/ Submit In Duplicate • • Well Name: W-204, W-204L1 & W-204L2 Drill and Complete Plan Summary Type of Well (producer or injector): Schrader Bluff OBa, OBc, and OBd Multi-Lat producer Surface Location: X = 612,049 Y = 5,959,836 l As Built Sec 21, T 11 N, R 12E, FEL: 1176.6', FNL: 420.9' W-204 OBd Target Start: X = 612,300 Y = 5,961,380 Z = 5050' TVDSS Sec 16, T 11 N, R12E, FEL: 899.1', FSL: 1119.2' W-204 OBd Target End: X = 612,150 Y = 5,968,140 Z = 5125' TVDSS Sec 9, T 11 N, R12E, FEL: 932.9', FSL: 2601.2' ~ W-204L1 OBc Target Start: X = 612,280 Y = 5,961,580 Z = 4995' TVDSS Sec 16, T 11 N, R12E, FEL: 915.7', FSL: 1319.5' W-204L1 OBc Target End: X = 612,140 Y = 5,968,140 Z = 5070' TVDSS Sec 9, T 11 N, R12E, FEL: 943', FSL: 2601.3' W-204L2 OBa Target Start: X = 612,298 Y = 5,961,460 Z = 491'5 TVDSS Sec 16, T 11 N, R12E, FEL: 899.7', FSL: 1199.2' W-204L1 OBa Target End: X = 612,140 Y = 5,968,140 Z = 4990' TVDSS Sec 9, T 11 N, R12E, FEL: 943', FSL: 2601.3' I AFE Number: PLD5M1082 I Riq: Nabor,~7E,S I GL: 53' I RT: 28.5' I RTE: 81.5' I Estimated Start Date: December 08, 2006 Well Information Distance to Nearest Property: Distance to Nearest Well in Pool: Well Type: Current Status: Conductor: BHT: BHP: O eratin da s to com lete: 48 16,020' to PBU boundary 258' from W-23 at 4,859' in W-204 wp09 ~ Schrader O-sand Tri-lateral Producer New well 20" X 34", 215.5 ppf, set at 110' KB 105 °F 8.2 - 8.7 EMW ppg in Schrader O-sands W-204, L1 & L2 Permit to Drill 11/07/06 • Formation Markers: 7 Formatio n To s TVDss and Estimated Por e Pressures Est. Commercial Est. Formation Hydrocarbon Pore Est. Pore To s Uncertaint Bearin Press. Press. Formation TVDss feet Yes/No) Psi) EMW NOTE: All formation tops are required from 1000' above proposed KOP to TD for sidetracks NOTE: All formation tops are required from surface to TD for all new wells G1 -295 +/-50' No 134 8.8 SV6 -1200 +/-50' No 546 8.8 SV5 -1840 +/-50' No 837 8.8 Base Permafrost -1845 +/-50' No 839 8.8 SV4 -1995 +/-50' Gas H drates 908 8.8 Fault #1 -2355 +/- 150' MD -See Fault Section SV3 -2510 +/-50' Gas H drates 1142 8.8 Poss. Free Gas SV2 -2700 +/-50' or Gas H drates 1229 8.8 Poss. Free Gas SVl -2990 +/-50' or Gas H drates 1360 8.8 UG4 -3325 +/-50' Thin coal 1513 8.8 Heavy Oil UG4A -3365 +/-50' between -3365 and -3525' SS 1531 8.8 Thin coals; Poss. Heavy oil UG3 -3705 +/-50' between 3900'- 3950' SS 1686 8.8 UG1 -4155 +/-50' No, water 1891 8.8 Heavy Oil UG_Ma -4465 +/-50' between -4465 and -4495' SS 2050 8.8 Heavy Oil UG_Mb1 -4510 +/-50' between -4515 and -4540' SS 2070 8.8 Heavy Oil UG_Mb2 -4555 +/-50' between -4555 and -4580' SS 2090 8.8 UG_Mc -4620 +/-50' No, water 2120 8.8 SB_Na -4685 +/-25' No, water 2150 8.8 SB_Nb -4710 +/-25' No, water 2160 8.8 SB_Nc -4740 +/-25' No, water 2170 8.8 SB_Ne -4750 +/-25' No, water 2180 8.8 SB_OA -4845 +/-25' No, water 2200 8.7 SB_OBa -4890 +/-25' Yes 2120 - 2200 8.3-8.7 SB_OBb -4920 +/-25' Yes 2180- 2220 8.5-8.7 SB_OBc -4965 +/-25' Yes 2200- 2240 8.5-8.7 SB_OBd -5025 +/-25' Yes 2140- 2250 8.2-8.6 SB_OBe Not Reached +/-25' Yes 2290 8.7 Permit to Drill W-204 Multilateral Version 1.0 ~ • Formation pressures from surface to the Ma are calculated based on a .455 water gradient. Formation pressures from the UG_Ma down to the SB_OA are based on W-200PB1 RFT pressures taken before start of W Pad Schrader Bluff production. Formation pressures in the SB_OBa through SB_OBd sands are estimated and assume these sands will show moderate pressure depletion resulting from W-200 and W-201 Wellbore TD Criteria: TD for all laterals is planned to be at end of polygon. No rathole is necessary. No extensions beyond the end of the polygons are planned, however if extended poor rock quality is encountered while drilling, some laterals could be ended sooner. If structure along the laterals comes in substantially deep to prognosis, then the OBa lateral may be ended sooner than the polygon end to avoid approaching any closer than 1500 feet to the minimum case OWC location. If O sand structure comes in shallow to prognosis, the OBa lateral should be terminated at the point where the top OBa marker depth is projected to reach a depth of -4970 feet TVDSS. Terminating the OBa lateral at this depth will still leave a minimum of 1500 feet of lateral standoff to the minimum case OWC depth at -5030 feet TVDSS. O sand structural depths along the W-204 laterals should be well established by the time the OBd lateral is drilled. Thus, there should be between 5 and 10 days of time prior to drilling the OBa lateral to reconfigure the OBa lateral profile, if necessary. Mud Program: 13-1/2" Surface Hole Mud Pro erties: Spud -Freshwater Mud Interval Densit ) Funnel vis YP PH FL Initial 8.5 - 9.1 250-300 50-70 8.5-9.0 NC-8.0 Base Perm -, 9.5 200-250 30-45 8.5-9.0 8.0 Interval TD .6 ax 200-250 30-40 8.5-9.0 5.0-7.0 9-7/8" Intermediate Hole Mud Pro erties: Freshwater Mud (LSND) Interval Densit ) YP PV API Filtrate MBT H Chlorides Surface shoe to interval TD 8.8 - 9.3 22-30 12-18 4-6 < 20 9.0-9.5 <600 6-3/4" Production Hole Mud Pro erties: LVT-200 MOBM (Versa-Pro) Interval Density Stabilit Oil: Water Ratio YP PV API Filtrate MBT All five Laterals 9.2 650-900 80:20, initial 15-19 <20 4-5.5 < 6 Survey and Logging Program: 13-1/2" Hole Section: Surface Gyro will be needed. Once clear of Magnetic interference MWD Surveys will be IIFR corrected real time with multi-station anal sis a lied. O en Hole: MWD / GR Cased hole: None 9-7/8" Intermediate Hole: MWD Surveys will be IIFR corrected real time with multi-station analysis applied. Open hole: MWD: Dir / GR / Res / Azimuthal Den / Neu /PWD DPC: 5 MDT oil Sam les & 30 MDT Pressures Cased Hole: USIT/CBL 6-3/4" Productton Holes: MWD Surveys will be IIFR corrected real time with multi-station analysis applied. O en hole: MWD / GR / Res / Azimuthal Den / Neu /AIM /PWD Cased Hole: N/A 3 Permit to Drill W-204 Multilateral Version 1.0 Casinall-ubina Proaram • Hole Size Csg / Tb O.D. Wt/Ft Grade Con ~ Burst si Collapse si Length Top MD /TVD Bottom MD /TVD 48" 20" X 34" 215.5# A53 Weld GL 110'/110' 13-'h" 10-3/a" 45.5# L-80 BTC 5,210 2,480 3346' GL 3346' / 3327' 9-'/8" 7 5/8" 29.7# L-80 BTC-M / TC-II 6,890 4,790 5861' GL 5861' / 5132' 6-3/a" OBd 4-~/z" slotted 12.6# L-80 IBT N/A N/A 6801' 5861' / 5131' 12662' / 5206' 6-3/a" OBc 4-'/z" slotted 12.6# L-80 IBT N/A N/A 7136' 5516' / 5051' 12652' / 5151 6-3/a" OBa 4-'/z" slotted 12.6# L-80 IBT N/A N/A 7323' 5326' / 4976' 12649' / 5071' Tubin 4-~/z" 12.6# 13Cr-80 Vam To 8,430 7,500 5300' GL 5300' / 4964' Surface and Anti-Collision Issues Surface Shut-in Wells: W-201 will require surface shut-in and well house removal in order to move over well W-204. No other wells should require well house removal and surface shut-in. Close Approach Shut-in Wells: All wells pass BP's major risk Anti-collision criteria scan. There are no wells that will require subsurface isolation for this profile. Cement Calculations Casing Size: 10-3/a -in 45.5-Ib/ft L-80 BTC surface casing Basis: Lead: 250% excess over gauge hole in permafrost, 30% excess over gauge hole below permafrost Lead TOC: Surface Tail: 1,000' of open hole with 30% excess, plus 80' shoe track Tail TOC: 2,346' MD 1,000' MD above shoe Total Cement Volume: Spacer 75 bbls of Viscosifie acer weighted to 10.00 ppg (Mud Pus Lead 473 bbls, 2658 ft ks 10.7 Ib/ al ASL G + additives - /sk Tail 92 bbls, 516 ft , ks 15.8 Ib/ al Class G + additives - - /sk Temp BHST ~66° F, B T ~60° F estimated by BP RP. In the event that cement is not circulated to surface during the initial surface casing cement job, notify the AOGCC of the upcoming remedial cement work for possible witness of cement to surface. Casing Size: 7-5/8", 29.7-Ib/ft L-80 BTC-M / TC-II intermediate casin Basis: Lead: None Lead TOC: N/A Tail: 2257' of open hole with 30% excess, plus 80' shoe track Tail TOC: 4146' MD 507' MD above the Ma, 800' MD below Surface Shoe Total Cement Volume: Wash 20 bbls CW100 S acer 50 bbls of Viscos' ' S acer Mud ush Wei hted Tail 89 bbls, 500 ft , 431 s 15.8 Ib/ al G + Gasblok 1.16 /sk Temp BHST ~ 102° F, m SOR. BHCT -85° F estimate v BP RP. Centralizer Recommendations 10-3/a" Casing Centralizer Placement a) Run (25) 10-3/4" Bow-spring centralizers attached over the collar of each joint of casing from the casing shoe up to 1,000' MD above the shoe. 7-g/e" Casing Space Out a) Spaceout the 7 5/8" casing to place a full joint in the window area of the OBb, OBa and OA sands. b) Place 1 RA tag above each window exit. RA tags to be spaced out ~40 - 80' above window 4 Permit to Drill W-204 Multilateral Version 1.0 • depth except on the OBd lateral. The RA tag for the OBd lateral will need to be placed ±125' above the casing shoe. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. BOP regular test frequency will be 14 days, with a function test every 7 days. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. Surface Hole A diverter will be nippled up and function tested prior to drilling surface hole. Intermediate Section • Maximum anticipated BHP: • Maximum surface pressure • Planned BOP test pressure • 10-3/4" Casing Test: • Integrity Test - 9-7/8" hole: • Kick Tolerance: Production Section • Maximum anticipated BHP: • Maximum surface pressure: • Planned BOP test pressure: • 7-5/8" Casing Test: • Integrity Test - 6-3/4" hole: • Kick Tolerance: • Planned completion fluid: 2,250 psi -Schrader OBd (8.6 ppg C~ 5,025' TVDss) 1,750 psi -Based on a full column of gas @ 0.10 psi/ft 3,500 psi/250 psi Rams / 2,500 psi/250 psi Annular 3,500 psi (45.5# L-80 casing burst is 5,210 psi) L 3 b s with a 10.8 ppg EMW LOT, 9.2ppg mud and 8.7 ppg OBd EMW 2,250 psi -Schrader OBd (8.6 ppg C 5,025' TVDss) 1,750 psi -Based on a full column of gas C«1 0.10 psi/ft 3,500 psi/250 psi Rams 2,500 psi/250 psi Annular 3,500 psi FI 0.2 ppg EMW for OBd lateral only finit at OBd, OBc, OBa, and OA with an 10.2 ppg EMW FIT . - pg SF OBM in Laterals, 9.2 ppg Brine, 6.8 ppg diesel in mother bore Disposal • No annular injection 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: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul all Class I waste to Pad 3 for disposal. 5 Permit to Drill W-204 Multilateral Version 1.0 Drilling Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE Well Control A. The Schrader in the target fault block is expected to be normal pressured at 8.2-8.7 ppg EMW. This pressure is estimated based on offset well pressures and material balance. II. Hydrates and Shallow gas A. Gas Hydrates are possible at W-pad from the SV5 thru the SVi sands below the base of the permafrost. Setting casing through the SV1 should keep hydrate exposure from extending past the surface hole although there are previous instances of gas from the SV1 into the Ugnu on W-pad. Recommended practices and precautions for drilling hydrates should be followed in the surface and intermediate hole sections. III. Fault Crossing/Lost Circulation/Breathing A. Lost circulation is not expected on this well. B. Fault #1, if detected, should be crossed in the SV3 formation, but should have a minimal throw at that depth. C. If the seismic artifact around the possible fault #2 locations does indeed turn out to be a fault then the well bore will be sidetracked to a new BHL to the East. This new location will likely be over 500' away from our current target and will require state approval before proceeding. D. Breathing is not expected on this well. E. 53 bbls with a 10.8 ppg EMW LOT, 9.2ppg mud and 8.7 ppg OBd EMW F. Wood and associated running gravels have been caused problems on previous W-pad well surface holes. IV. Kick Tolerance/Integrity Testing Kick Tolerance / Inte rit Testin Summa Tabte Casing set / Maximum Influx Volume Mud Weight Exp Pore Press Min LOT /FIT Interval Surface / 9 7/8" 53 9.2 8.7 OBd 10.8 LOT Intermediate / 6-3/4" Infinite 9.2 8.7 (OBd) 10.2 (FIT for OBd lateral onl NOTE: All LOT /FIT will be taken with a minimum of 20-ft and a maximum of 50-ft of new hole drilled outside of the previous casing string An FIT will only be performed for the OBd lateral, not the OBc, or OBa. 6 Permit to Drill W-204 Multilateral Version 1.0 • • v. Hydrogen Sulfide #1 Closest SHL Well H2S Level #2 Closest SHL Well H2S Level #1 Closest BHL Well H2S Level #2 Closest BHL Well H2S Level Max. Recorded H2S on Pad/Facility Other Relevant H2S Data (H2S alarms from rigs, etc.) W -201 20 m 11 /1 /2005 W -200 15 m 8/21 /2006 W-23A 15 m 4/14/2006 W-19A 20 m 7/4/2006 W-01 60 p pm 8/16/2005 All W Pad gas lift wells are expected to have H2S levels in the 5 to 60 ppm range as a result of using PBU gas lift gas. W Pad i not esignated as an H2S site, however Standard Operating Procedures for H2S precautions should be followed 1 times. VI. Faults A. Two faults could be crossed while drilling W-204. No losses are expected to be associated with these faults. B. Fault #1 -Fault is dying in throw upward. At intersection point with W-204, fault should have minimal throw. C. Fault #2 is a possible fault - if encountered, wellbore will be re-oriented to a more easterly postion. D. Fault #3 will not be crossed by W-204. Fault position and standoff defines western side of target polygon. Fault Location MD TVDss Throw Direction Uncertainty Fault #1 - SVe 2,435' -2,355 0 to -25' West +/- 150' MD Fault #2 -Possible fault - OBd Interval 6,645' -5,057' 0 to -40' East +/- 150' MD CONSULT THE PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION 7 Permit to Drill W-204 Multilateral Version 1.0 • • W-204, W-204 L1 & W-204 L2 OPERATIONS SUMMARY Pre-Riq Work: 1: A 34" x 20" insulated conductor has already been set and surveyed. Weld an FMC landing ring for the FMC Gen 5 Wellhead on the conductor. 2. If necessary, level the pad and prepare location for rig move. Prepare neighboring wells for the rig move and production simops. Drilling Riq Operations: 1. MIRU Nabors 7ES. Nipple up diverter spool and riser. Function test diverter. PU 4" DP and stand back in derrick. 2. MU 13-'/z" drilling assembly with MWD/GR and directionally drill surface hole to approximately 3,346' MD. The actual surface hole TD will be +/-200' TVD below the top of the SVi sand. 3. Run and cement the 10-3/a", 45.5#, L-80 BTC-SD casing from TD back to surface. ND drilling spool and riser and NU casing /tubing head. NU BOPE and test to 3,500 psi. 4. MU 9-'/8" directional drilling assembly with MWD/GR/Res/Den/Neu/PWD and a Ghost reamer±1,600' from the bit. RIH to float collar. Test the 10-3/a" casing to 3,500 psi. for 30 minutes. Note: Ensure grade is L-80. Theme has been some K-55 on the slope and 3,500 psi would be near 100% burst for K-55 casing. 5. Drill out shoe track and displace the well to new 8.8 LSND drilling fluid. Drill 20' of new formation and pe orm a LOT. Directionally drill ahead to TD at t 5,861' MD. 6. Run drill pipe conveyed MDT. Perform cleanout run if necessary. 7. MU and run 7 5/8", 29.7#, L-80, BTC-M, TC-II casing to TD. Cement in one stage to 4,446' MD (1,000' MD ; from the surface casing shoe). Bump plug with seawater. /~ 8. Clean pits for displacement. Freeze protect 7-5/a" x 10-3/a" annulus to 2,200' TVD. 9. RU a-line. Run USIT log from TD to surface. • W-204 OBd Lateral 10. PU 6-3/a" conventional assembly with MWD/GR/Res/Den /Neu/AIM/PWD and RIH to the float collar. Test the 7-5/" casing to 3,500 psi for 30 minutes. 11. Displace well s+~Ffo 9.0 ppg Versapro MOBM. Drill out shoe track, circulate and condition mud. Drill 20' of new formation and perform FIT to 10.5 ppg EMW. 12. Directionally drill ahead to TD geo-steering through the OBd to TD at -12,662' MD. Back ream out of the hole ~ to the shoe, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. 13. POOH to near OBc window depth, log the top OBc (RA marker) with GR, log across the OBa window as well. POOH. 14. MU and run 4-~/z" 12.6# L-80 BTC-M slotted liner and swell packers with liner hanger and liner top packer. Position TOL for OBc whipstock. POOH. • W-204L1, OBc Lateral 15. PU the 7 5/s' whipstock assembly. Set the whipstock on the OBd liner top packer such that the top of the window is near the top of the OBb sand. Orient and set whipstock. Shear off Whipstock. Displace well~r to 9.0 ppg Versapro MOBM. Mill window. POOH. 16. RIH with 6-3/a" conventional drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to whipstock. Directionally drill to the planned TD of OBb lateral. Back ream out of hole to KOP, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. POOH. 17. Pull whipstock #1. 18. Run and set 4-~/z" slotted liner and hook hanger. POOH and LD liner running string. /~ 19. Run Baker Hook Hanger Lateral Entry Module #1 with ZXP liner top packer, POOH. • W-204L2. OBa Lateral 20. PU the 7 5/8" whipstock assembly. Set the whipstock on the OBc liner top packer such that the top of the window is near the top of the OBa sand. Orient and set whipstock. Shear off Whipstock. Displace well over to 9.0 ppg Versapro MOBM. Mill window. POOH. 8 Permit to Drill W-204 Multilateral Version 1.0 21. RIH with 6-3/a" conventional drilling assembly with MWD/GR/Res/Den/Neu/AIM/PWD to whipstock. Directionally drill to the planned TD of the OBa lateral. Back ream out of hole to KOP, circulate and condition mud. RIH to TD and displace well bore to SF MOBM. POOH. 22. Pull whipstock #2. ~,, 23. Run and set 4-~/z" slotted liner with swell packers and hook hanger, POOH and LD liner running string. 24. Run Baker Hook Hanger Lateral Entry Module #2 with ZXP liner top packer, POOH. 25. Clean pits for displacement. Displace mother bore over to 9.2 ppg KCL brine. POOH. 26. MU 4-~/2" 12.6# IBT-M, L-80 completion assembly tying into and RIH. See completion schematic for details. Land tubing hanger and run in lockdown screws. 27. Drop RHC ball and rod and set packer as per Baker recommendation and test tubing to 3,500 psi and annulus to 3,500 psi. Shear DCK valve. 28. Install two-way check and test to 1,000 psi from below. Nipple down the BOPE. Nipple up and test the tree to 5,000 psi. 29. Pull two-way check. Reverse in brine with corrosion inhibitor to protect the annulus and freeze protect the well to 2,200' TVD. Install VR plug in 7 5/8" casing annulus valves. 30. Install BPV. Secure the well and rig down /move off Nabors 7ES. ~ Post-Rig Work: 1. MIRU slickline. Pull the ball and rod /RHC plug. 2. Pull out DCK shear valve, install GLV in all of the other mandrels as per the PE. 9 Permit to Drill W-204 Multilateral Version 1.0 W-204, L1, & L2 PROPOSED COMPLETION 20" X 34" 215.5 Ib/ft, A53 ERW Insulated @ 109' Halliburton X-Nipple (3.813" ID) @ 2200' TVD 4-1/2", 12.61b/ft, 13CR-80, VamTop Coupling OD: 4.937" Drift/ID : 3.833"/3.958" 14", 45.5# L-80 BTC Csg @ 3,346' MD TREE: FMC 4-1/16" 5M WELLHEAD: FMC Gen 5 System 11", 5M csg.head w/ 7" mandrel hanger 8 packoff 11" x 11", 5M, tbg spool w/ 11" x 4-1/2" tubing hanger with control line ports 11" X 4-1/16" Adaptor Flange Orig KB elev (N-7ES) _ ' 4.5" Baker sliding sleeve with 3.813" ID @ GLM Desian: 7-5/8" X 5-1/2" Baker PRM Packer @ #4 - 2500` TVD - 4-1/2" X 1" KBG-2 - SV #3 - 3500' TVD - 4-1/2" X 1" KBG-2 - DV Halliburton X-Nipples (3.813" ID) ' #2 - 5 jts above sliding sleeve - 4-1/2" X 1" KBG-2 - DV 4.5" WLEG @ 5,800' MD #1 - 2 jts above sliding sleeve - 4-1/2" X 1" KBG-2 - DV Phoenix Pressure Gauge Versapro SFMUBM in each Lateral and in mother bore from tbg tail down. with control +r''~~ lines to surface Est TOC 4,146' RA Tag TBD -5/8", 29.7#, L-80, TCII to -4,946' Casing Drift: 6.75" Casing ID: 6.875" ~'ti ~+ Junction Specifications: ` 6-314" OBa Lateral 5,326'-12,650` Junction ID through LEM Module without diverter: 3.68" RA Tag TBD =-- - _- LEM run with internal sealbores - to allow the use of isolation v y~' - sleeve across window. as Swell packer placement TBD RA Tag Baker Hughes Hookwall Hanger W ndow in 7-5/8" casing Well Inclination @ Window = '65 i Baker Hughes Hookwall Hanger Window in 7-5/8" casing Well Inclination @ W indow = -72 -5/8", 29.7#, L-80, BTC-M @ 5861'. Casing Drift: 6.75" Casing ID: 6.875" 6-314" OBc Lateral 5,516'-12,652' \~'"~~`Swell packer placement TBD _~ ~ ~ -~ ~, _ _ ~- `-~ _~ 6-314" OBd Lateral 5,861'- 12,662' DATE REV. BY COMMENTS ~ 1010412006 KWA Level3Mu1ti-Lateral 4-112" GL Com letion l>~! {v ~ „/~~y ~ ~ ~ ~ ~ ~ ~~ (JJ{' !C ~ ( c , : 50-029- AP I N O ON 50-029- ORI 50 029 WELL: W-204 ML 50-029- SEC 16 SEC 21 N 2822-~- - - ~ N ~,-N 2904 W-204 ^ 201 ^ 200 M ^ za ^ 23 w ^ 22 ^ 21 N 2414.5 - ' ^ 20 33 ^ ^ 19 '~ szs 32 ^ ^ 18 31 ^ ^ 17 sz5 30 ^ ^ 16 29 ^ ^ 15 211 ^ ^ 14 509 27 ^ 212 28 ^ W-21 ~ 01 MI ,R b 1 __ ; --, 25 ^ ^ 297 :__......._._.._.: m N i , _ w } 20s m w i 2 34 * 3 35 } ~ 4 36 ~ g i 37 } 7 38 Tl ~ g 39 ^ g . 40y7 ~ j 9 400 10 42 Tl T ~ 11 SPARE ~ ~ 12 ~ ~ } 205 i 203 ~ ', m ~ ~- 16 'flCe,~ 15 Q kp'.ti 't' ~ W PA C~ n- WEST END Q NO.1 pp^ ~ 21` ~f~1~./ h N - KUP UK SfA ZZ N0.1 STAGING AREA VICINITY MAP W-PAD N. T. s. 1 h(jF NI) AS-STAKED CONDUCTOR ^ EXISTING CONDUCTOR NOTES: ' 1. ALASKA STATE PLANE COORDINATES ARE ZONE 4, NAD27. 2. BASIS OF LOCATION IS W PAD MONUMENTS W-1 & W-2. 3. BASIS OF ELEVATION IS W PAD MONUMENT W-2. ELEVATIONS ARE BP MEAN SEA LEVEL DATUM. 4. GEODETIC POSITIONS ARE NAD27. 5. PAD MEAN SCALE FACTOR IS 0.99991426. 6. DATE OF SURVEY: OCTOBER 2, 2HH6. 7. REFERENCE FIELD BOOK: W006-15 PGS. 41-45. LOCATED WITHIN PROTRACTED SECTION 21, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA WELL A.S.P. PLANT GEODETIC GEODETIC GRAVEL SECTION N0. COORDINATES COORDINATES POSITION(DMS) POSITION(D.DD) PAD ELEV. OFFSETS W-204 Y= 5,959,835.95 N= 2,642.00 70'17'57.178" 70.2992161' 7 52 4,859' FSL ' X= 612,048.99 E= 2,130.00 149'05'33.130" 149.0925361' ' FEL 1,177 W-2101 Y= 5,959,320.99 N= 2,127.00 70'17'52.114" 70.2978094' 51 8 4,344' FSL " X= 612,048.99 E= 2,130.00 149'05'33.354" 149.0925983' . FEL 1,186 anww cHECKEO: ^ y ~ 0 O'HANLEY DATE: ~ / ^~ O 10/4/06 ~ DRAWING: ~a06 ""°"' 0, g0 SHEET: y~ - . WOA W-PAD ~ I91~~~~o AS-STAKED CONDUCTOR 0 0 04 ISSUED FOR INFORMAnON ,u LoN _""s scA~E " ' WELLS W-204 & W-2101 1 aF t N0. DATE REVISION BY CHK .ua~anw¢. ~• +~ 1 = 300 by Schlumberger W-204 (P9b) Proposal Report Date: September 20, 2006 Survey 1 DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 1.550° Field: Prudhoe Bay Unit - WOA Vertical Section Origin: N 0.000 ft, E 0.000 ft Struaure 1 Slot: W-PAD / W-204 ~~ $ ~ TVD Reference Datum: Rotary Table Well: ~~~~' Plan W-204 TVD Reference Elevation: 81.50 ft relative to MSL Borehole: Plan W-204 ~ Sea Bed 1 Ground Level Elevation: 53.00 ft relative to MSL UWIIAPI#: 5029 Magnetic Decination: 23.935° Survey Name /Date: W-204 (P9b) /September 20, 2006 Total Field Strength: 57635.213 nT Tort 1 AND 1 DDI 1 ERD ratio: 127.476° / 8427.68 ft / 6.417 / 1.617 Magnetic Dip: 80.884° Grid Coordinate System: NAD27 Alaska State Planes, Zone 04, US Feel Declination Date: December 05, 2006 Location Latllong: N 70.29921630, W 149.09253597 Magnetic Declination Model: BGGM 2006 Location Grid NIE YIX: N 5959836.000 ftUS, E 612049.000 ftUS North Reference: True North Grid Convergence Angle: +0.85435460° Total Corr Mag North a True North: +23.935° Grid Scale Factor: 0.99991426 Local Coordinates Referenced To: Well Head c: Measured Vertical Grawty Comments Inclination Azimuth Sub•Sea TVD TVD NS EW DLS Build Rate Walk Rate Northing Easting Latitude Longitude Depth Section Tool Face n de d n n n n n de de 1100 ft de 100 n d 100 ft nUS nUS KI t V. VV U.UU ZO.tlU -Cl.SV U .VV U.VU V.VV U.UV --- V.UU V.VU V.VV ~yOytlJf).VU blZV4y .UU IV /V .ZyyZlb3V VV l4y. UyZbJby/ G1 376. 50 0.00 25.86 295. 00 376. 50 0.00 0.00 0.00 --- 0.00 0.00 0.00 5959836.00 612049. 00 N 70. 29921630 W 149. 09253597 SV6 1281. 50 0.00 25.86 1200. 00 1281. 50 0.00 0.00 0.00 --- 0.00 0.00 0.00 5959836.00 612049. 00 N 70. 29921630 W 149. 09253597 SV5 1921. 50 0.00 25.86 1840. 00 1921. 50 0.00 0.00 0.00 --- 0.00 0.00 0.00 5959836.00 612049. 00 N 70. 29921630 W 149. 09253597 Base Perm 1926. 50 0.00 25.86 1845. 00 1926. 50 0.00 0.00 0.00 --- 0.00 0.00 0.00 5959836.00 612049. 00 N 70. 29921630 W 149. 09253597 SV4 2076. 50 0.00 25.86 1995. 00 2076. 50 0.00 0.00 0.00 --- 0.00 0.00 0.00 5959836.00 612049. 00 N70. 29921630 W 149. 09253597 KOP Bld 1.5/100 2400. 00 0.00 25.86 2318 .50 2400 .00 0.00 0.00 0.00 HS 0.00 0.00 0.00 5959836.00 612049 .00 N 70 .29921630 W 149. 09253597 Fault Crossing 2436. 50 0.55 25.86 2355. 00 2436. 50 0.16 0.16 0.08 HS 1.50 1.50 0.00 5959836.16 612049. 07 N 70. 29921673 W 149. 09253536 Bld 3/100 2500. 00 1.50 25.86 2418 .49 2499 .99 1.19 1.18 0.57 14.39R 1.50 1.50 0.00 5959837.19 612049 .55 N 70 .29921952 W 149. 09253135 SV3 2591. 63 4.22 35.19 2510. 00 2591. 50 5.09 5.01 3.04 5.08R 3.00 2.97 10.18 5959841.06 612051. 96 N 70. 29923000 W 149. 09251138 2600. 00 4.47 35.47 2518 .34 2599 .84 5.62 5.53 3.40 4.79R 3.00 2.99 3.41 5959841.58 612052 .32 N 70 .29923141 W 149. 09 2 2700. 00 7.46 37.40 2617 .79 2699 .29 14.12 13.86 9.61 2.87R 3.00 2.99 1.93 5959850.00 612058 .40 N 70 .29925417 W 149. 0 6 SV2 2783. 18 9.96 38.12 2700. 00 2781. 50 24.27 23.81 17.33 2.16R 3.00 3.00 0.87 5959860.06 612065. 97 N 70. 29928135 W 149. 09 64 2800. 00 10.46 38.23 2716 .56 2798 .06 26.66 26.15 19.17 2.05R 3.00 3.00 0.62 5959862.43 612067 .78 N 70 .29928775 W 149. 09238072 2900. 00 13.46 38.69 2814 .38 2895 .88 43.22 42.37 32.07 1.60R 3.00 3.00 0.46 5959878.84 612080 .43 N 70 .29933205 W 149. 09227630 End Bid 2950. 25 14.96 38.85 2863 .08 2944 .58 53.04 51.99 39.79 --- 3.00 3.00 0.32 5959888.57 612088 .01 N 70 .29935833 W 149. 09221374 SVl 3081. 62 14.96 38.85 2990. 00 3071. 50 80.03 78.40 61.07 --- 0.00 0.00 0.00 5959915.30 612108. 89 N 70. 29943050 W 149. 09204141 10-3/4" Csg 3345. 57 14.96 38.85 3245. 00 3326. 50 134.24 131.48 103.83 --- 0.00 0.00 0.00 5959969.01 612150. 85 N 70. 29957550 W 149. 09169514 UG4 3428. 38 14.96 38.85 3325. 00 3406. 50 151.25 148.14 117.25 --- 0.00 0.00 0.00 5959985.85 612164. 02 N 70. 29962099 W 149. 09158651 UG4A 3469. 78 14.96 38.85 3365. 00 3446. 50 159.76 156.46 123.96 --- 0.00 0.00 0.00 5959994.28 612170. 60 N 70. 29964374 W 149. 09153219 UG3 3821. 72 14.96 38.85 3705. 00 3786. 50 232.04 227.23 180.97 --- 0.00 0.00 0.00 5960065.89 612226. 54 N 70. 29983708 W 149. 09107050 Crv 4/100 4023 .42 14.96 38.85 3899 .86 3981 .36 273.47 267.79 213.64 47.15E 0.00 0.00 0.00 5960106.93 612258 .61 N 70 .29994789 W 149. 09080588 4100 .00 17.19 31.24 3973 .45 4054 .95 291.17 285.17 225.72 39.83E 4.00 2.91 -9.95 5960124.48 612270 .42 N 70 .29999536 W 149. 09070810 WeIlDesign Ver SP 2.1 Bld( doc40x_100) W-204\Plan W-204\Plan W-204\W-204 (P9b) Generated 9/20/2006 9:09 AM Page 1 of 3 Measured Vertical Gravity Comments Inclination Azimuth Sub•Sea TVD TVD NS EW DLS Build Rate Walk Rate Northing Easting Latitude Longitude Depth Section Tool Face ft de de ft ft ft ft ft de de 1100 ft de 100 ft de 100 ft ftUS ftUS 4"LUU.UU 1U.4'L '13.tftf 4Utitf.11 414y.ti1 3ZU.1ti 313.// Z4U.4b 31.tStiL 4.UU 3.13 -/.36 byfiU1b3.3U ti1YZi34./Z N /U.3000/34y W 14y.UyUbiftt/y UG1 4293.74 23.65 18.81 4155.00 4236.50 353.26 346.54 253.14 28.15E 4.00 3.45 -5.41 5960186.24 612296.92 N 70.30016301 W 149.09048604 4300.00 23.87 18.52 4160.73 4242.23 355.67 348.93 253.95 27.89E 4.00 3.53 -4.66 5960188.64 612297.69 N 70.30016953 W 149.09047950 4400.00 27.47 14.46 4250.85 4332.35 397.52 390.47 266.14 24.23E 4.00 3.60 -4.06 5960230.36 612309.26 N 70.30028302 W 149.09038077 4500.00 31.16 11.29 4338.03 4419.53 445.52 438.19 276.96 21.46E 4.00 3.69 -3.17 5960278.23 612319.37 N 70.30041339 W 149.09029308 4600.00 34.91 8.73 4421.86 4503.36 499.43 491.86 286.37 19.32E 4.00 3.75 -2.56 5960332.04 612327.98 N 70.30056002 W 149.09021686 Ma 4653.27 36.92 7.56 4465.00 4546.50 530.47 522.80 290.79 18.37E 4.00 3.79 -2.20 5960363.03 612331.94 N 70.30064452 W 149.09018106 4700.00 38.70 6.62 4501.92 4583.42 558.98 551.22 294.32 17.62E 4.00 3.80 -2.02 5960391.50 612335.04 N 70.30072219 W 149.09015247 Mb1 4710.39 39.10 6.42 4510.00 4591.50 565.48 557.71 295.06 17.47E 4.00 3.81 -1.92 5960397.99 612335.69 N 70.30073990 W 149.09014647 Mb2 4769.33 41.35 5.35 4555.00 4636.50 603.44 595.57 298.95 16.65E 4.00 3.82 -1.82 5960435.91 612339.01 N 70.30084333 W 149.09011495 4800.00 42.53 4.83 4577.81 4659.31 623.90 615.98 300.77 16.26E 4.00 3.84 -1.70 5960456.35 612340.52 N 70.30089911 W 149.09 4 Mc 4858.31 44.77 3.90 4620.00 4701.50 664.09 656.11 303.82 15.59E 4.00 3.85 -1.59 5960496.51 612342.98 N 70.30100874 W 149.09 4900.00 46.38 3.28 4649.18 4730.68 693.85 685.83 305.68 15.16E 4.00 3.86 -1.49 5960526.25 612344.40 N 70.30108992 W 149.09006041 Na 4952.92 48.43 2.54 4685.00 4766.50 732.79 724.73 307.66 14.66E 4.00 3.87 -1.40 5960565.18 612345.79 N 70.30119620 W 149.09004442 Nb 4991.16 49.91 2.03 4710.00 4791.50 761.72 753.64 308.81 14.33E 4.00 3.87 -1.32 5960594.09 612346.51 N 70.30127517 W 149.09003507 5000.00 50.25 1.92 4715.68 4797.18 768.50 760.42 309.04 14.25E 4.00 3.88 -1.29 5960600.87 612346.64 N 70.30129368 W 149.09003318 Nc 5038.65 51.75 1.43 4740.00 4821.50 798.53 790.44 309.92 13.95E 4.00 3.88 -1.25 5960630.90 612347.07 N 70.30137571 W 149.09002606 Ne 5054.92 52.38 1.24 4750.00 4831.50 811.36 803.27 310.22 13.83E 4.00 3.88 -1.22 5960643.73 612347.18 N 70.30141075 W 149.09002364 5100.00 54.13 0.70 4776.97 4858.47 847.49 839.38 310.83 13.51 L 4.00 3.89 -1.18 5960679.85 612347.25 N 70.30150942 W 149.09001868 5200.00 58.03 359.60 4832.76 4914.26 930.42 922.35 311.03 12.90E 4.00 3.89 -1.10 5960762.80 612346.22 N 70.30173607 W 149.09001699 OA 5223.41 58.94 359.36 4845.00 4926.50 950.37 942.30 310.85 12.77E 4.00 3.90 -1.04 5960782.75 612345.74 N 70.30179059 W 149.09001845 5300.00 61.93 358.59 4882.79 4964.29 1016.91 1008.90 309.66 12.39E 4.00 3.90 -1.00 5960849.32 612343.55 N 70.30197253 W 149.09002811 Or3a 5315.48 62.54 358.44 4890.00 4971.50 1030.59 1022.60 309.30 12.32E 4.00 3.91 -0.97 5960863.01 612343.00 N 70.30200994 W 149.09003098 OBb 5383.60 65.20 357.80 4920.00 5001.50 1091.63 1083.71 307.30 12.04E 4.00 3.91 -0.94 5960924.08 612340.08 N 70.30217690 W 149.09004721 5400.00 65.84 357.65 4926.80 5008.30 1106.52 1098.63 306.71 11.98E 4.00 3.91 -0.91 5960938.98 612339.26 N 70.30221765 W 149.09005199 5500.00 69.76 356.77 4964.58 5046.08 1198.82 1191.08 302.19 11.64E 4.00 3.92 -0.88 5961031.35 612333.37 N 70.30247023 W 149.09008852 OBc 5501.22 69.80 356.76 4965.00 5046.50 1199.97 1192.23 302.13 11.64E 4.00 3.92 -0.86 5961032.50 612333.29 N 70.30247336 W 149.09008904 5600.00 73.68 355.93 4995.95 5077.45 1293.36 1285.82 296.14 11.38E 4.00 3.92 -0.84 5961125.98 612325.91 N 70.30272905 W 149.09013751 5700.00 77.60 355.12 5020.75 5102.25 1389.68 1382.38 288.58 11.18E 4.00 3.92 -0.81 5961222.41 612316.91 N 70.30299284 W 149.09 3 Oed 5720.45 78.40 354.96 5025.00 5106.50 1409.55 1402.31 286.85 11.14E 4.00 3.92 -0.79 5961242.31 612314.88 N 70.30304729 W 149.0 3 End Crv 5761.20 80.00 354.64 5032.64 5114.14 1449.30 1442.17 283.22 --- 4.00 3.93 -0.78 5961282.11 612310.66 N 70.30315618 W 149.090 210 Csg Tgt 5861.20 80.00 354.64 5050.00 5131.50 1547.07 1540.22 274.02 --- 0.00 0.00 0.00 5961380.00 612300.00 N 70.30342405 W 149.09031658 7-5/8" Csg Pt 5861.26 80.00 354.64 5050.01 5131.51 1547.12 1540.28 274.01 --- 0.00 0.00 0.00 5961380.05 612300.00 N 70.30342420 W 149.09031662 Crv 10/100 5881.20 80.00 354.64 5053.47 5134.97 1566.62 1559.83 272.18 2.05R 0.00 0.00 0.00 5961399.58 612297.87 N 70.30347762 W 149.09033147 5900.00 81.88 354.71 5056.43 5137.93 1585.05 1578.31 270.46 2.04R 10.00 9.99 0.36 5961418.03 612295.87 N 70.30352812 W 149.09034543 End Crv 5996.80 91.55 355.05 5061.97 5143.47 1680.92 1674.45 261.84 --- 10.00 9.99 0.35 5961514.02 612285.83 N 70.30379076 W 149.09041516 Crv 6/100 6223.79 91.55 355.05 5055.82 5137.32 1906.37 1900.51 242.27 115.16E 0.00 0.00 0.00 5961739.75 612262.88 N 70.30440835 W 149.09057366 W-204 OBd Tgt 2 6284.57 90.00 351.75 5055.00 5136.50 1966.53 1960.88 235.28 115.44E 6.00 -2.55 -5.43 5961800.00 612255.00 N 70.30457327 W 149.09063022 6300.00 89.60 350.91 5055.05 5136.55 1981.71 1976.13 232.96 115.44E 6.00 -2.58 -5.42 5961815.21 612252.45 N 70.30461493 W 149.09064905 End Crv 6309.48 89.36 350.40 5055.14 5136.64 1991.02 1985.49 231.42 --- 6.00 -2.58 -5.42 5961824.54 612250.77 N 70.30464048 W 149.09066151 Fault Crossing 6465.00 89.36 350.40 5056.88 5138.38 2143.59 2138.82 205.49 --- 0.00 0.00 0.00 5961977.46 612222.56 N 70.30505938 W 149.09087153 WeIlDesign Ver SP 2.1 Bld( doc40x_100) W-204\Plan W-204\Plan W-204\W-204 (P9b) Generated 9!20/2006 9:09 AM Page 2 of 3 Measured Vertical Gravdy Comments Inclination Azimuth Sub•Sea TVD TVD NS EW DLS Build Rate Walk Rate Northing Easting Latkude Longitude Depth Section Tool Face ft de de ft ft ft ft ft de de 1100 ft de 100 ft de 100 ft ftUS ftUS (;rvti/1UU /Uy:i.yU 8y.:i8 :i5U.4U SUEi:S.y:i 5145.43 1/80.58 1/58.8/ 1UU.ti1 1U8.95K U.UU U.UU U.UU 5yti'L5y5.8'1 ti111U8.4ti N /U.SUti/5:i:5'L W 14y.Uy1/'LU9U 7100.00 89.25 350.75 5064.00 5145. 50 2766.57 2764.89 99.62 106.95R 6.00 -1.75 5.74 5962601.82 612107.38 N 70.30676976 W 149.09172899 W-204 OBd Tgt 3 7148.76 88.40 353.55 5065.00 5146. 50 2814.66 2813.17 92.96 107.39R 6.00 -1.75 5.74 5962650.00 612100.00 N 70.30690167 W 149.09178291 End Crv 7194.83 87.58 356.19 5066.62 5148. 12 2860.39 2859.03 88.84 --- 6.00 -1.79 5.73 5962695.79 612095.20 N 70.30702695 W 149.09181625 Crv 6/100 8081.56 87.58 356.19 5104.12 5185. 62 3742.45 3743.01 29.98 12.78R 0.00 0.00 0.00 5963578.71 612023.17 N 70.30944191 W 149.09229306 8100.00 88.65 356.44 5104.73 5186. 23 3760.80 3761.40 28.80 12.77R 6.00 5.85 1.33 5963597.08 612021.71 N 70.30949215 W 149.09230266 W-204 OBd Tgt 4 8122.99 90.00 356.74 5105.00 5186. 50 3783.70 3784.34 27.43 12.29R 6.00 5.85 1.33 5963620.00 612020.00 N 70.30955483 W 149.09231374 End Crv 8139.80 90.99 356.95 5104.86 5186. 36 3800.46 3801.13 26.50 --- 6.00 5.86 1.28 5963636.77 612018.83 N 70.30960070 W 149.09232124 Crv 6/100 9572.17 90.99 356.95 5080.21 5161. 71 5228.01 5231.27 -49.58 131.99R 0.00 0.00 0.00 5965065.49 611921.44 N 70.31350771 W 149.09293770 W-204 OBd Tgt 5 9596.73 90.00 358.05 5080.00 5161. 50 5252.51 5255.80 -50.65 131.77R 6.00 -4.01 4.46 5965090.00 611920.00 N 70.31357474 W 149.09294637 9600.00 89.87 358.20 5080.00 5161. 50 5255.77 5259.07 -50.76 131.77R 6.00 -4.00 4.48 5965093.27 611919.84 N 70.31358367 W 149.09 End Crv 9673.03 86.95 1.47 5082.03 5163. 53 5328.73 5332.06 -50.97 --- 6.00 -3.99 4.48 5965166.24 611918.54 N 70.31378306 W 149.092 899 Crv 6/100 10542.20 86.95 1.47 5128.24 5209. 74 6196.67 6199.71 -28.74 39.75R 0.00 0.00 0.00 5966034.05 611927.83 N 70.31615342 W 149.09276883 10600.00 89.62 3.68 5129.97 5211. 47 6254.42 6257.42 -26.14 39.68R 6.00 4.62 3.84 5966091.78 611929.57 N 70.31631107 W 149.09274778 W-204 OBd Tgt 6 10608.23 90.00 4.00 5130.00 5211. 50 6262.64 6265.63 -25.59 39.11 R 6.00 4.62 3.83 5966100.00 611930.00 N 70.31633350 W 149.09274331 End Crv 10646.96 91.80 5.47 5129.39 5210. 89 6301.31 6304.22 -22.39 --- 6.00 4.65 3.79 5966138.63 611932.62 N 70.31643893 W 149.09271742 Crv 6/100 11560.34 91.80 5.47 5100.66 5182. 16 7212.10 7212.99 64.58 136.11 R 0.00 0.00 0.00 5967048.52 612006.02 N 70.31892163 W 149.09201250 11600.00 90.09 7.12 5100.00 5181. 50 7251.62 7252.41 68.92 136.14R 6.00 -4.33 4.16 5967087.99 612009.78 N 70.31902930 W 149.09197728 W-204 OBd Tgt 7 11602.02 90.00 7.20 5100.00 5181. 50 7253.63 7254.41 69.17 137.27R 6.00 -4.33 4.16 5967090.00 612010.00 N 70.31903478 W 149.09197523 End Crv 11633.15 88.63 8.47 5100.37 5181. 87 7284.57 7285.25 73.42 --- 6.00 -4.41 4.07 5967120.89 612013.78 N 70.31911902 W 149.09194084 TD / 4-1/2" Lnr 12661.71 ~ 88.63 8.47 5125.00 5206. 50 8305.34 8302.30 224.83 --- 0.00 0.00 0.00 5968140.00 612150.00 N 70.32189751 W 149.09071330 ~~ WeIlDesign Ver SP 2.1 Bld( doc40x_100) W-204\Plan W-204\Plan W-204\W-204 (P9b) Generated 9/20/2006 9:09 AM Page 3 of 3 by WELL W-204 (P9b) FIEL- Prudhoe Bay Unit - WOA STRUCTURE W-PAD Magneric Pa~amelers Surface LOCabon NAD2]AlasFe 9rale Planes, ZOne 09. U5 feel ~sce neo Medel: BGGM NO6 Dip: 80.860' Dare. December p5, 20W N]01]5].1 ]9 Nartbing: 595983600 RUfi Grid GOnV. ~0850354E0° SIaL W-204 TVD ReI'. Ropry Table 181.50 Rabove MSLI Map ~o X23935° f5' S]615.2 nT W149533.130 Eas4ng 612049.00 ttU5 Scale Fact: 0.9999102622 Plan. W-204 IP9b1 Srvy Dale: September 20. 200fi 0 1000 2000 3000 4000 5000 6000 7000 8000 0 1000 2000 0 0 0 c a~ 3000 m U 4000 5000 / I I 1 End Crv .1 Crv 6/11 .gt W-204 OBd Tgt 2 yy-y04 OBtl End C Crv 6/100 Csg Pt Crv 10/100 Schlumberger ..- .r. -..-.._.._.. Crv B/100 I End Crv Crv 6/100 14End Crv Crv B/100 1 End Crv W-204 OBd Tgt 5 W-~04 OBtl Tqt 6 W-204 OBd Tgt 7 TD / 4-112" Lnr 1000 ?000 3000 i ~ooo 5000 0 1000 2000 3000 4000 5000 6000 7000 8000 Vertical Section (ft) Azim = 1.55°, Scale = 1(in):1000(ft) Origin = 0 N/-S, 0 E/-V ' by Schlumberger WELL FIELD STRUCTURE W-204 (P9b) Prudhoe Bay Unit - WOA W-PAD MagnaM Parameters Surface Location NP02] Alaska Slate Planes. Zone 04, US Feel cellaneous Modal: BGGM 2006 DT'. 60.664' Dale December O5. 2006 Lal'. NI01]5]1I9 NoMing. 69696Jfi 00 RU5 Gritl GOnV: +0.66435dfi0' Slor. W~204 NO RaF. Rplary Table (81.SORabove MSL) Mag Dac: 523.935° FS'. 5]6J6.2 nT Lan: W149533.130 Eastirg. 61204900 RUS Scala Fact: 09999142622 Plan: W-204 (P9b1 6nry Oafe: September 20, 2008 -2000 -1000 0 1000 2000 8000 7000 6000 n ,^~ 5000 Z a= 0 0 0 c II 4000 a> m U V V V 3000 2000 1000 0 TD / 4-1/2" Lnr ....................:..................................:.................................: End Crv W-20; OBd Tgt 7 Crv 6/100 Enid Crv W-204 09d Tgt 6 Orv 6/700 ....................i.................................. i.............. ..................; :Entl Crv W-204:OBd Tgt 5 Crv 6H 00 i ....................j.................................. ~................................. Fa Wt Crossing End Crv W-206 OBd Tgt ....................i................................-.:.............................. nwt Crv 6H 00 Entl Crv Crv 10/100 7S/6" Csg Pty Csg Tgt 6 W-204 Flt 2 SOSOs Crv 4/100 70-0/4" Cs W-204 FO 3 505055 End Bld Fault Crossin Bld J/100 KOP Bld 1.5/100 ............} ..................................j............................... Crv l OBd Tgt7 6/100 /~ -2000 -1000 U 1000 wvv «< W Scale = 1(in):1000(ft) E »> 8000 7000 6000 5000 4000 3000 2000 1000 0 BP Alaska Anticollision Report Company: BP Amoco Field: Prudhoe Bay Reference Site: PB W Pad Reference Well: Plan W-204 Reference Wellpath: Plan W-204 _ _ NO GLOBAL SCAN: Using user defined selection & scan criteria Interpolation Method: MD Interval: 5.00 ft Depth Range: 28.50 to 12661.71 ft Maximum Radius:10000.00 ft Survey Program for Definitive Wellpath Date: 3!5/2002 Validated: No Planned From To Survey ft ft 28.50 1000.00 1000.00 2400.00 1000.00 3346.00 3346.00 5861.00 5861.00 12661.71 Planned: Plan #9 V1 Planned: Plan #9 V1 Planned: Plan #9 V1 Planned: Plan #9 V1 Planned: Plan #9 V1 Date: 9!20/2006 Time: 09:36:04 Page: 1 Co-ordinate(NE) Reference: Well: Plan W-204, True North Vertical ("CVD) R eference: W-204 Plan 81.5 Db: Oracle Reference: Principal Plan & PLANNED PROGRAM Error Model: ISCWSA Ellipse Scan Method: Trav Cylinder North Error Surface: Ellipse + Casing Version: 6 Toolcode Tool Name 'I __- GYD-GC-SS Gyrodata gyro single shots MWD MWD -Standard MWD+IFR+MS MWD +IFR + Multi Station MWD+IFR+MS MWD +IFR + Multi Station I MWD+IFR+MS MWD +IFR + Multi Station ', Casing Points i~1D TVD Diameter Hole Size Name ft ft in in 3345.57 3326.50 10.750 13.500 10 3/4" ', 5861.20 5131.50 7.625 9.875 7-5/8" 12661.71 5206.50 4.500 6.750 4 1/2" Summary ~__-_____-______ Offset Wellpath -------------> Site Well Wellpath '~ PB MPTR3 PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad ', PB W Pad ', PB W Pad ~, PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad ! PB W Pad ', PB W Pad ', PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad PB W Pad ', PB W Pad PB W Pad PB W Pad ~ PB W Pad I~ PB W Pad '~ PB W Pad PB W Pad PB W Pad PB W Pad ' PB W Pad Reference Offset Ctr-Ctr No-Co AlloH~ablc b1D MD Distance Area Deviation ft ft k ft ft MP00151112 MP00151112 V1 10150.35 6500.00 782.23 430.83 Plan W-210 Plan W-210 V5 Plan: PI 750.33 750.00 517.29 13.47 Plan W-210 Plan W-210PB1 V1 Plan: 750.33 750.00 517.29 13.47 Plan W-213 Plan W-213 V4 Plan: PI 434.77 435.00 15.83 7.89 Plan W-214 Plan W-214 V5 Plan: PI 499.64 500.00 30.80 9.04 Plan W-401 Plan W-401 V1 Plan: PI 1811.64 2080.00 435.02 38.80 W-01 W-01 V3 767.92 770.00 742.13 16.78. W-01 W-01 A V4 767.92 770.00 742.13 16.78 W-01 W-01APB1 V1 767.92 770.00 742.13 16.78 W-02 W-02 V4 803.52 805.00 772.61 12.86 W-02 W-02A V20 804.71 805.00 772.64 12.89 W-03 W-03 V4 2470.47 2485.00 797.46 35.43 W-03 W-03A V1 2470.47 2485.00 797.46 35.43 W-04 W-04 V1 2445.97 2465.00 846.75 37.27 W-05 W-05 V3 880.41 890.00 879.45 17.05 W-05 W-05A V2 880.41 890.00 879.45 17.05 W-06A W-06A V2 1038.71 1040.00 948.75 18.92 W-06 W-06 V1 1038.71 1040.00 948.75 18.92 W-07 W-07 V1 590.78 600.00 914.60 14.05 W-07 W-07A V7 594.79 595.00 914.71 14.16 W-08 W-08 V1 1365.25 1375.00 980.45 25.65 W-08 W-08A V12 1366.17 1370.00 980.47 25.40 W-09 Plan W-096 V1 Plan: PI 555.12 555.00 1018.21 10.70 W-09 W-09 V1 555.82 565.00 1018.23 10.39 W-09 W-09A V4 557.82 555.00 1018.28 10.50 W-09 W-09AP61 V9 557.82 555.00 1018.28 10.44 W-10 W-10 V3 569.49 570.00 1053.49 12.13 W-10 W-10A V4 569.49 570.00 1053.49 12.13 W-11 W-11 V1 680.17 690.00 1087.87 11.55 W-12A W-12A V3 493.62 495.00 1123.96 10.59 W-12 W-12 V1 493.62 495.00 1123.96 10.59 W-15 W-15 V1 2432.62 2445.00 416.45 33.51 W-15 W-15A V10 2432.62 2445.00 416.45 33.51 W-15 W-15P61 V6 2432.62 2445.00 416.45 33.51 W-15 W-15PB2 V1 2432.62 2445.00 416.45 33.51 W-16 W-16 V3 2423.87 2435.00 378.78 33.96 W-16 W-16A V3 2423.87 2435.00 378.78 33.85 W-16 W-16AP61 V1 2423.87 2435.00 378.78 33.85 W-16 W-16L1 V3 2423.87 2435.00 378.78 33.96 351.40 503.82 503.82 7.93 21.76 396.22 725.36 725.36 725.36 759.75 759.75 762.03 762.03 809.48 862.40 862.40 929.84 929.84 900.55 900.55 954.80 955.07 1007.52 1007.84 1007.78 1007.84 1041.36 1041.36 1076.32 1113.37 1113.37 382.95 382.95 382.95 382.95 344.82 344.93 344.93 344.82 Warning ~ Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk Pass: Major Risk BP Alaska Anticollision Report Company: BP Amoco Date: 9/20/2006 Time: 09:36:04 Page: 2 Field: Prudhoe Bay Reference Site: PB W Pad Co-ordinaEe(iVF,) Reference: Well: Pla n W-204, Tr ue North Reference Nell: Plan W-204 Vertical (TV D) Reference: W-204 P lan 81.5 Reference Wellpath : Plan W-204 Db: Oracle __ Summary <__~_~__-______ Offset W'ellpath ----- --------> Reference pffset Ctr-Ctr No-Go Allowable Site WeII Wellpath h1D MD Distance Area Deviation Warning ~ ft ft ft ft ft PB W Pad W-17 --- W-17 V4 1700.43 - 1710.00 346.52 - 31.50 315.03 Pass: Major Risk PB W Pad W-17 W-17A V9 1702.37 1715.00 346.57 31.55 315.03 Pass: Major Risk ~~ PB W Pad W-18 W-18 V1 2436.71 2440.00 319.21 38.52 280.69 Pass: Major Risk '~, PB W Pad W-19 W-19 V2 2470.93 2490.00 264.17 39.00 225.17 Pass: Major Risk ', PB W Pad W-19 W-19A V1 2486.93 2500.00 264.50 39.33 225.17 Pass: Major Risk ~~ ! PB W Pad W-19 W-19AL1 V3 2486.93 2500.00 264.50 39.33 225.17 Pass: Major Risk PB W Pad W-19 W-19AL1 P61 V1 2486.93 2500.00 264.50 39.22 225.28 Pass: Major Risk I ', PB W Pad W-19 W-19AL1 P62 V1 2486.93 2500.00 264.50 39.22 225.28 Pass: Major Risk !, PB W Pad W-200P61 W-200PB1 V7 2088.94 2090.00 62.15 29.21 32.94 Pass: Major Risk !, PB W Pad W-200 W-200 V6 2088.94 2090.00 62.25 29.15 33.10 Pass: Major Risk ', ! PB W Pad W-201 W-201 V4 829.82 830.00 36.16 13.63 22.53 Pass: Major Risk ', PB W Pad W-203 W-203 V10 609.31 615.00 1193.41 9.41 1183.99 Pass: Major Risk PB W Pad W-203 W-203L1 V8 609.31 615.00 1193.41 9.20 1184.21 Pass: Major Risk PB W Pad W-203 W-203L2 V4 609.31 615.00 1193.41 9.20 1184.21 Pass: Major Risk PB W Pad W-205 W-205 V6 583.95 585.00 1154.50 10.46 1144.04 Pass: Major Risk ', PB W Pad W-205 W-205L1 V2 583.95 585.00 1154.50 10.46 1144.04 Pass: Major Risk PB W Pad W-205 W-205L1 P61 V4 583.95 585.00 1154.50 10.46 1144.04 Pass: Major Risk ', ~i PB W Pad W-205 W-205L2 V4 583.95 585.00 1154.50 10.46 1144.04 Pass: Major Risk ~! PB W Pad W-207 Plan W-207A V2 Plan: P 350.56 350.00 578.39 6.20 572.18 Pass: Major Risk !, PB W Pad W-207 Plan W-207AP61 V1 Plan 350.56 350.00 578.39 6.20 572.18 Pass: Major Risk PB W Pad W-207 W-207 V10 350.56 350.00 578.39 6.20 572.18 Pass: Major Risk ' PB W Pad W-207 W-207P61 V2 350.56 350.00 578.39 6.20 572.18 Pass: Major Risk PB W Pad W-209 W-209 V9 631.51 635.00 704.63 11.52 693.11 Pass: Major Risk ~I PB W Pad W-209 W-209P61 V6 631.51 635.00 704.63 11.36 693.27 Pass: Major Risk ', PB W Pad W-20 W-20 V1 2446.72 2450.00 250.21 37.53 212.68 Pass: Major Risk ', PB W Pad W-211 W-211 V9 958.50 965.00 524.73 17.55 507.18 Pass: Major Risk ', PB W Pad W-212 W-212 V12 1029.98 1035.00 481.54 16.37 465.17 Pass: Major Risk PB W Pad W-215 W-215 V7 1154.17 1185.00 515.64 20.50 495.14 Pass: Major Risk PB W Pad W-215 W-215P61 V2 1137.05 1165.00 516.63 21.19 495.44 Pass: Major Risk PB W Pad W-21 W-21 V3 1034.49 1045.00 200.64 24.66 175.98 Pass: Major Risk ': PB W Pad W-21 W-21A V12 1033.80 1035.00 200.63 24.65 175.98 Pass: Major Risk ~~ PB W Pad W-22 W-22 V1 2432.75 2435.00 179.13 35.67 143.46 Pass: Major Risk ' ~~ PB W Pad W-23 W-23 V3 2454.78 2470.00 91.55 36.26 55.29 Pass: Major Risk I !~ PB W Pad W-23 W-23A V5 2454.28 2460.00 91.55 36.26 55.29 Pass: Major Risk ', ', PB W Pad W-24 W-24 V1 2294.35 2295.00 104.68 36.73 67.95 Pass: Major Risk ~, PB W Pad W-25 W-25 V1 2285.46 2295.00 621.11 32.95 588.16 Pass: Major Risk !~ PB W Pad W-26A W-26A V6 1839.97 1880.00 599.87 38.44 561.43 Pass: Major Risk PB W Pad W-26 W-26 V1 1839.97 1880.00 599.87 38.44 561.43 Pass: Major Risk ', " PB W Pad W-27 W-27 V3 2417.87 2430.00 564.46 40.24 524.22 Pass: Major Risk I PB W Pad W-27 W-27A V3 2417.87 2430.00 564.46 40.24 524.22 Pass: Major Risk PB W Pad W-29 W-29 V1 2466.06 2485.00 486.25 39.54 446.70 Pass: Major Risk ', ', PB W Pad W-30 W-30 V1 2427.60 2440.00 470.44 37.17 433.27 Pass: Major Risk PB W Pad W-31 W-31 V1 2445.38 2460.00 439.70 40.22 399.48 Pass: Major Risk !, PB W Pad W-32 W-32 V6 2441.29 2455.00 411.58 33.85 377.73 Pass: Major Risk L ' PB W Pad W-32 W-32A V3 2439.33 2450.04 411.56 33.84 377.72 Pass: Major Risk PB W Pad W-32 W-32AP61 V13 2439.33 2450.04 411.56 33.53 378.02 Pass: Major Risk !, PB W Pad W-34 W-34 V1 2437.37 2455.00 833.86 39.22 794.64 Pass: Major Risk ! PB W Pad W-34 W-34A V1 2437.37 2455.00 833.86 39.22 794.64 Pass: Major Risk PB W Pad W-34 W-34AP61 V1 2437.37 2455.00 833.86 39.12 794.75 Pass: Major Risk ', PB W Pad W-35 W-35 V1 2445.38 2465.00 873.95 35.30 838.65 Pass: Major Risk '.; PB W Pad W-36 W-36 V1 2444.74 2465.00 910.31 36.80 873.51 Pass: Major Risk PB W Pad W-37 W-37 V3 2428.51 2445.00 946.61 38.21 908.40 Pass: Major Risk PB W Pad W-37 W-37A V3 2428.51 2445.00 946.61 38.21 908.40 Pass: Major Risk PB W Pad W-38 W-38 V2 455.72 465.00 978.02 8.34 969.68 Pass: Major Risk PB W Pad W-38 W-38A V10 458.37 465.00 978.06 8.22 969.84 Pass: Major Risk ~ PB W Pad W-39 W-39 V1 2416.07 2430.00 1021.04 38.05 982.99 Pass: Major Risk PB W Pad W-39 W-39A V2 2416.07 2430.00 1021.04 38.16 982.88 Pass: Major Risk !, PB W Pad W-400 W-400 V5 1002.08 1005.00 1059.56 16.70 1042.86 Pass: Major Risk PB W Pad W-40 W-40 V1 2442.63 2465.00 1051.70 38.58 1013.11 Pass: Major Risk ~i PB W Pad W-42 W-42 V1 2449.57 2465.00 1115.01 37.89 1077.13 Pass: Major Risk i I` PB W Pad W-44 W-44 V1 1922.63 1935.00 1175.18 31.18 1144.00 Pass: Major Risk • FieldPrudhoe Bay SitePB W Pad We11:Plan W-204 WellpathElan W-204 313 300 200 100 0 2 100 200 300 -3 t 3 0 Travelling Cylinder Azimuth (TFO+AZI) [degj vs Centre t Terri Mubble BP Exploration AK Inc. PO Box 196612 IV16 7-5 Anchorage, AK 995?9 SAY TO THE ~ OF n~ ~n ~~ ~ ~ i ss-snss2 311 "Mastercard Check" DATE 1 ~ ~ ~ ~~ $ _1~L~ =first National $ank Alaska "" anchorage, AK s95O1r,(.,~ ~AEINO~~ r~~./ l i ~:1 2 5 200060~:99Lti62271556~~' 03L1 • • ~'R.~~,rS~II~"~'~I. L~~TER C'HEC'ICI.IS~' t)evetopment Service ECp(oratory Stratigraphic Vest Non-Conventional W"ett Circte Appropriate Letter % Paragraphs to be Included in Transmittal Letter CHECK :ADD-Otis WHAT (OPTIO~iS:i APPLIES TEXT FOR APPRO`'.aL LETTER ViL'LTI LATERAL The permit is for a new wellbore segment of existing wel l (If last rivo digits a in .Permit ~o. ~P[ ~(o ~0- - . P[ number .. . are - bet<veen 60-69) Production should continue to be repor*ed as a function of the ~~riginal AP[ number stated above. PILOT HOLE [n accordance with ~0 .-SAC ~'S.00~(t1, aI! records, data and logs acquired for the pilot hole must be clearly differentiated in both . . well name ( PH) and AP[ number (~~- - -__~ from records, data and logs , acquired for well SP:~ChiG The permit is approved subject to full compliance with ?0 AAC EXCEPTIO` ~.0~: :a.pprova! to perforate and produce ' infect is contingent upon issuance of a conszryation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY" D[TCH Alf dry ditch sample sets submitted to the Commission must be in i SAMPLE no greater than 30' sample intervals from be(o~~ the permafrost or from ~yhere samples are t~rst caught and !0~ ;ample intervals through target zones. ion-Conventional Please note the following special condition of this permit. ;production or production testing of coal bed methane is not allowed well For name of well) until after (Company tiame) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Com~anv tiam~ must contact the Commission to obtain advance approval of such water well testing __ ' program. Rey- ! '5.06 C jody`trar.smiral check;ist WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, POLARIS OIL -640160 -- - -- _ Unit 9 OnlOff Shore On __ Annular Disposal I- I PTD#~ 2061580 Com an BP EXPLORATION (ALASKAN INC Initial Classlfype DEV / 1-OILII NGeoArea RUDHOE BAY UN POL W-204 _ Pro ram DEV Well bore se I p y -- . _- - _ -- -_ Administration '1 Permit feeattached_ --- Yes 2 Lease number appropriate_ _ - - - - - - - - - - - Yes 3 Unique well. name andnumbet _ _ _ _ _ _ Yes X14 Well located in a_defnedpool _ _ _ Yes _ _ _ ~~5 Well located proper distance_fro_m_drilling unitboundary_ Yes 6 Well located proper dstance_from. other wells _ _ _ _ Yes 7 Sufficient acreage available in drilling unit _ _ _ _ _ Yes ~8 Jf deviated, is wellbore plat_included Yes _ 9 Operator only affected parfy_ Yes 10 Operator has_appropriate_bond in force ---------- Yes 11 Permit can be issued without conservation order_ Yes 12 Permit_can be issued without administrative_approval Yes Appr Date 13 Can permit be approved before 15-day wait_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes _ _ _ _ _ _ RPC 11121!2006 14 Well located within area and_strata authorized by_Injection Order # (put_IO# in_comments)-(For NA 15 All wells within 114_mile area of review identified (For service_well only) NA_ 16 Pre-produced injector; duration ofpre-production less than_ 3 months_(For service well. only) NA_ 11 N f t AS31 05 030(j 1 A) Q 2 A-D) NA 7 - onconven, gas con orms _ o ~ , -. - , , , _ ~ Engineering 18 19 20 21 Appr Date 29 WGA 11121/2006'30 31 Conductor string_provided Yes - 20" x 34"_@ 110'._ _ _ _ _ Surface casing-protects all known-USDWs Yes _ _ _ _ CMT_voladequate_to circulate on conductor_&surf-csg - - Yes Ade_ uate excess...., q CMT_vol adequate_to tie-in long string to surf csg_ _ _ _ - _ _ - - _ No CMT_will cover all known productive horizons- _ _ _ _ _ - - - - No_ _ _ _ Slotted, Casing designs adequate for C, T 6 &_permafrost_ _ _ _ - _ _ _ . _ _ _ _ - _ _ Yes _ _ _ _ _ _ _ _ _ _ _ _ --------- ----- Adequate tankage_or reserve pit - ---- -------- Yes Nabors 7ES, - If a_re-drill, has_a_ 10-403 for abandonment been approved NA_ New well. Adequate wellbore separation proposed - - - - - - - -Yes If diverter required, does it meet regulations_ Yes Drilling fluid_program schematic & equip list adequat_e_ Yes Max MW_9.6 ppg, BOPEs,_do they meet_ regulation - Yes BOPE_press rating appropriate; test to_(pui psig in comments)_ - Yes Test to 3500_ psi. _MSP 1750 psi, Choke_manfold comp_lies_WIAPI_RP-53 (May 84) - _ - - - - - - - - - - - - - - - - - - - Yes _ _ _ _ _ Work will occur withput operation shutdown_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes _ _ _ _ _ _ _ I& presence_ of H2$ gas probable _ _ _ _ . No_ Not an H2S pad. Mechanical condition of wells within AOR verified (For_service well only) NA _ 35 Permit_rzn be issued wlo hydrogen sulfide measures _ _ _ _ _ _ No _ _ _ _ _ _ _ 36 Data_presented on potential overpressure zones Geology NA 37 Seismic analysis-of shallow gas zones- _ _ _ _ _ _ _ _ NA- _ _ Appr Date 38 Seabed condition surve _(if off-sho[e _ _ _ _ _ _ NA_ _ - RPC 11!2112006 i39 Contact namelphone for weekly_progress reports_ [exploratory only] NA_ C7 Geologic Engineering Date Commissioner: Date: Com) ~si~one~: Date o ner
