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Home My WebLink AboutNorthstar / BP Exploration STATE OF ALASKA AOGCC GAS DISPOSITION FILES YEAR: 2008 FACILITY: Northstar OPERATOR: BP EXPLORATION STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Jan - 2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 13,702,837 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 4,005 9. Flared or vented more than 1 hour (see instr.) 6,200 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 Official Use Only 12. Other (see instructions) 0 Authorization >1 hr: �yi y r }a✓ MCF 1. (�'� 13. TOTAL VOLUME (ITEM 13,713,042 MCF Lease Use 14. NGL Gas Equivalent FEB 2 0 2nf Conservation MCF 15. Purchased gas 1,863,601 Waste: MCF Alma ON & Cklb Conn. Commission 16. Transferred from: AnChOrage , >1°- el -7-0 g Commissioner Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (i.e. no purchased gas). Gas purchased from PBU was used as follows (all in mscf): fuel gas 699,898, pilot purge 2759, injection 1,160,944. I hereby certify that the foregoing i true an correct to the best of my knowledge. Note: All volumes must be corrected Signature 7 i Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psis and to a temperature of 60o F. Authority 20 Printed Name Bernard W. Hajny Phone (907)564 - 5028 Date // Ci 9 AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate Northstar Gas Flaring Incident Report 1/1/2008 - 1/31/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 71 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 3,934 Unplanned Greater Than 1 Hour 01/06/2008 11:58 01/06/2008 15:33 215.00 919 The LP compressor S/D due to the HPB S/D and S/I NS -6, 13, 14, 15, 18 & 22 initially to mitigate Equipment Outage LP the resulting increase in LP discharge pressure flaring. ( causing the compressor to surge and S/D on hi hi 1st stage suction pressure. 01/06/2008 12:05 01/06/2008 15:47 222.00 2,331 HPB compressor S/D due to a problem with the S/I NS -6, 13, 14, 15, 18 & 22 initially to mitigate Equipment Outage HP1 fuel control governor. Flaring was from the flaring. contactor. 01/07/2008 03:50 01/07/2008 08:41 291.00 1,225 PC -1030 on IP Sep. malfunctioned. Tech's remediated problem with Controller. Plant Startup HP1 ` 01/07/2008 05:19 01/07/2008 07:46 147.00 511 PC -1030 on IP Sep. malfunctioned. Unable to Tech's remediated problem with Controller. Cut Plant Startup LP start LP back wells to mitigate flaring 01/16/2008 21:08 01/16/2008 22:19 71.00 84 FI2360 for HPA had a ice plug giving incorrect Blew out tap to FI2360 xmtr Equipment Outage HP1 indication to HPA . 01/19/2008 10:51 01/19/2008 12:10 79.00 912 While performing maintenance on the shore Started generator, charged batteries and opened Upset HP1 K crossing generator the shore crossing valves up shore crossing valves went closed causing plant shutdown 01/19/2008 12:14 01/19/2008 13:40 86.00 218 While performing maintenance on the shore Started generator, charged batteries and opened Upset LP crossing generator the shore crossing valves up shore crossing valves went closed causing plant shutdown I Group Total 6,200 Report Total 10,205 FlarelncidentDetails 01- 2008.xls 2/8/2008 10:19 AM w STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Feb - 2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 13,434,941 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 1,544 9. Flared or vented more than 1 hour (see instr.) 1,265 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 Official 12. Other (see instructions) 0 �pQrtly Authorization >1 hr: J Use MCF . � , Safety / ,/K 13. TOTAL VOLUME (ITEMS 6 -12) 13,437,750 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1 ,771 ,518 Waste MCF 16. Transferred from: �'0-0 C i i r / Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (i.e. no purchased gas). Gas purchased from PBU was used as follows (all in mscf): fuel gas 678,522, pilot purge 2581, injection 1,090,415. I hereby certify that the for - going is true and correct to the best of my knowledge. Note: All volumes must be corrected Signature / / tom Abp. Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a v temperature of 60o F. Authority 20 Printed Name Bernard W. Hajny Phone (907)564 - 5028 Date /� AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate Northstar Gas Flaring Incident Report 2/1/2008 - 2/29/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 1,070 Planned Greater Than 1 Hour 02/23/2008 17:21 02/23/2008 20:15 174.00 579 LP Start N/A LP Purge Gas LP 02/23/2008 17:27 02/23/2008 20:27 180.00 459 LP Start N/A LP Purge Gas HP1 Group Total 1,038 Unplanned Less Than 1 Hour Group Total 474 Unplanned Greater Than 1 Hour 02/01/2008 06:29 02/01/2008 07:42 73.00 227 Lost LP due to IP seperator upset. get seperator pressure under control. Equipment Outage HP1 Group Total 227 Report Total 2,809 FlarelncidentDetails 02 -2008 FINAL.xls 3/7/2008 9:45 AM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Mar - 2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 14,691,629 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 188 9. Flared or vented more than 1 hour (see instr.) 6,885 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 Official Use Only Authorization >1 hr: , MCF / Safet �r CC ,� 13. TOTAL VOLUME (ITEMS 6 -12) 14,698,702 y L r � wv MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,916,006 Waste: MCF /7 16. Transferred from: CjAre) ' Commissioner I a 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (i.e. no purchased gas). Gas purchased from PBU was used as follows (all in mscf): fuel gas 735,135, pilot purge 2759, injection 1,178,112. I hereby certify that the f egoing is true an corr t the best of my knowledge. Note: All volumes must be corrected Signature Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psis and to a temperature of 60o F. Authority 20 Printed Name Bernard W. Hajny Phone (907)564 -5028 Date / — AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate Northstar Gas Flaring Incident Report 3/1/2008 - 3/31/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 128 Planned Greater Than 1 Hour 03/17/2008 23:10 03/18/2008 02:24 194.00 1,606 Flaring off of the test separator while unloading NS- Complete flowback and return systems to normal. Other HP1 06 acid job to the well clean -up tank. 03/31/2008 03:59 03/31/2008 05:04 65.00 99 Depressured Test separator for well flow Closed when well flow back was complete Well Outage HP1 Group Total 1,704 Unplanned Less Than 1 Hour Group Total 60 Unplanned Greater Than 1 Hour 03/16/2008 05:55 03/16/2008 13:03 428.00 1,656 LP compressor outage due to ice plug in the 1st Start LP compressor and return to normal Equipment Outage LP stage discharge cooler. operations. 03/16/2008 06:04 03/16/2008 13:12 428.00 1,688 LP compressor outage due to ice plug in the 1st Start LP compressor and return to normal Equipment Outage HP1 stage discharge cooler. operations. 03/16/2008 13:05 03/16/2008 18:12 307.00 926 LP compressor outage due to ice plug in the 1st Start LP compressor and return to normal Equipment Outage LP stage discharge cooler. operations. 03/16/2008 13:14 03/16/2008 16:17 183.00 552 LP compressor outage due to ice plug in the 1st Start LP compressor and return to normal Equipment Outage HP1 stage discharge cooler. operations. 03/16/2008 16:31 03/16/2008 18:21 110.00 359 LP compressor outage due to ice plug in the 1st Start LP compressor and return to normal Equipment Outage HP1 stage discharge cooler. operations. Group Total 5,181 Report Total 7,073 FlarelncidentDetails 03 -2008 FINAL.xls 4/4/20082:51 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Apr - 2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 12,453,355 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less - SEE REMARKS 3,053 . 9. Flared or vented more than 1 hour (see instr.) 5,306 10. Pilot and Purge 0 ' 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 Official Use Only Authorization >1 hr: MCF / , r Safety G ei:S ,4it.+. 13. TOTAL VOLUME (ITEMS 6 -12) RECEIVE f . 12,461,714 — MCF Lease Use 14. NGL Gas Equivalent MAY 2 3 2008 Conservation 1 MCF { 15. Purchased gas 1,609,675 Waste: MCF Alaska �� 16. Transferred from: ®� Corn. � �' D/ , ( _ D A or 6' Commissioner Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (i.e. no purchased gas). Gas purchased from PBU was used as follows (all in mscf): fuel gas 635,149, pilot purge 2670, injection 971,502, flare 354. PBU gas was flared on 4/29 and 4/30 when Northstar production was shut down. I hereby certify that the foregoing is true and correct o the best of my knowledge. Note: All volumes must be corrected Signature 6.A.../ Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a �f temperature of 60o F. Authority 20 Printed Name Bernard W. Hajny Phone (907)564 - 5028 Date ,� 9�� AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate II Northstar Gas Flaring Incident Report 4/1/2008 - 4/30/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 1,319 includes 296 mscf of PBU gas flared on 4/29 Planned Greater Than 1 Hour 04/05/2008 21:19 04/06/2008 00:04 165.00 257 Commisioning NS -16. Keeping test sep pressure Commissioning HP1 low to enhance flowback. 04/08/2008 03:36 04/08/2008 04:50 74.00 139 Flaring from the test separator. Unloading NS -11 Planned flaring. Unloaded the well and Other HP1 through the test separator and well clean -up tank returned it to normal production. following a scheduled acid stimulation job. 04/08/2008 05:04 04/08/2008 07:37 153.00 184 Flaring from the test separator. Unloading NS -11 Planned flaring. Unloaded the well and Other HP1 through the test separator and well clean -up tank returned it to normal production. following a scheduled acid stimulation job. 04/08/2008 09:28 04/08/2008 11:12 104.00 168 Flaring from the test separator. Unloading NS -11 Planned flaring. Unloaded the well and Other HP1 through the test separator and well clean -up tank returned it to normal production. following a scheduled acid stimulation job. 04/10/2008 12:59 04/10/2008 14:50 111.00 208 Acid flowback on NS -16, lowering test separator Other HP1 pressure 04/18/2008 10:54 04/18/2008 13:36 162.00 302 Depressure Test Separator For NS -!9 N/A Commissioning HP1 04/28/2008 00:20 04/28/2008 03:29 189.00 1,252 planned TAR N/A Equipment Outage HP1 Group Total 2,511 Unplanned Less Than 1 Hour Group Total 2,088 includes 58 mscf of PBU gas flared on 4/30 Unplanned Greater Than 1 Hour 04/01/2008 21:02 04/01/2008 22:26 84.00 177 LP compressor shutdown Restarted LP Compressor Upset HP1 04/01/2008 21:04 04/01/2008 22:24 80.00 205 LP compressor shutdown Restarted LP Compressor Upset LP 04/02/2008 22:02 04/03/2008 02:55 293.00 1,237 LP compressor shutdown Cut back wells until compressor was Equipment Outage HP1 restarted 04/02/2008 22:02 04/03/2008 02:50 288.00 1,176 LP compressor shutdown Cut back wells until compressor was Equipment Outage LP restarted Group Total 2,795 Report Total 8,713 (Northstar gas 8359 mscf, imported PBU gas 354 mscf) FlarelncidentDetails 04 -2008 FINAL.xls 5/6/2008 3:00 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED G AS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP May - 2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 11,061,259 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less - SEE REMARKS 3,695 9. Flared or vented more than 1 hour (see instr.) 19,139 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 .Cafflclal Use•4n e 12. Other (see instructions) 0 Authorization >1 hr: MCF Safety r � 2 . 4 ,. ,� 13. TOTAL VOLUME (ITEMS 6 -12) 11 ,084,093 J MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,482,129 Waste: MCF 16. Transferred from: Commissioner ate 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (i.e. no purchased gas). Gas purchased from PBU was used as follows (all in mscf): fuel gas 580,717, pilot purge 2759, injection 898,523, flare 130. PBU gas was flared on 5/3 when Northstar production was shut down. I hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected Signature de/1AL C y r Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a fpm temperature of 60o F. Authority 20 Printed Name Bernard W. Hajny Phone (907)564 - 5028 Date AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate Northstar Gas Flaring Incident Report 5/1/2008 - 5/31/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 704 Planned Greater Than 1 Hour 05/04/2008 20:33 05/05/2008 21:22 1,489.00 5,332 Plant restart following annual turn - around (outage) Control flare rates with production wells until gas Plant Startup LP for planned maintenance. compressors are started. 05/04/2008 23:09 05/05/2008 21:29 1,340.00 3,253 Plant restart following annual turn - around (outage) Control flare rates with production wells until gas Plant Startup HP1 for planned maintenance. compressors are started. 05/17/2008 11:49 05/17/2008 12:59 70.00 87 Lowering test separator pressure to unload NS -34 Put well into production when unloaded Commissioning HP1 Group Total 8,672 Unplanned Less Than 1 Hour Group Total 3,121 includes 130 mscf of PBU gas flared on 5/3 Unplanned Greater Than 1 Hour 05/09/2008 13:42 05/09/2008 15:14 92.00 181 CPS power failure cascaded into a loss of fuel Opening wells to restart plant, equipment. HPB Start Gas LP gas at Northstar. / 05/09/2008 16:09 05/09/2008 20:05 236.00 807 CPS power failure cascaded into a loss of fuel Bringing wells on. HPB is running. Starting LP Other LP (\ gas at Northstar. Flaring from LP vessels until LP compressor. compressor is re- started. 05/09/2008 16:15 05/09/2008 20:12 237.00 1,007 CPS power failure cascaded into a loss of fuel Bringing wells on. HPB is running. Starting LP Other HP1 gas at Northstar. Flaring from IP separator until compressor. LP compressor is re- started. 05/12/2008 01:46 05/12/2008 19:01 1,035.00 3,895 HP Separator LAHH failed high causing an OSD Manage wells to mitigate flaring during LP Other LP and LP compressor S /D. Experienced difficulty re- Compressor start attempts. starting LP Compressor. LP flaring from low pressure vessels. 05/12/2008 01:54 05/12/2008 19:09 1,035.00 3,508 HP Separator LAHH failed high causing an OSD Manage wells to mitigate flaring during LP Other HP1 and LP compressor S /D. Experienced difficulty re- Compressor start attempts. starting LP Compressor. HP flaring from IP separator. 05/15/2008 18:35 05/15/2008 19:50 75.00 647 HPA- S/D on a bad card Brought machine back up when safe Equipment Outage HP1 05/30/2008 17:42 05/30/2008 19:15 93.00 277 Hydrates in feed gas coolers caused system to cooked feed gas coolers. Upset HP1 back up and flare 05/30/2008 21:39 05/30/2008 23:07 88.00 146 Hydrates in feed gas coolers caused system to cooked feed gas coolers. Upset LP back up and flare Group Total 10,467 Report Total 22,964 (Northstar gas 22834 mscf, imported PBU gas 130 mscf) NSTR FlarelncidentDetails 05 -2008 FINAL.xls 6/12/2008 9:34 AM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Jun - 2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6 Sold 0 Pool Name Pool Code Percent 7. Reinjected 15,279,724 Northstar 590100 100.0 Northstar 590500 0.0% 8. Flared or vented 1 hour or less 6,027 9. Flared or vented more than 1 hour (see instr.) 4,909 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 Offiotal Use Only Authorization >1 hr: 17/ MCF Safety 13. TOTAL VOLUME (ITEMS 6 -12) 15,290,660 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 953,850 Waste: MCF 16. Transferred from: D cQ i3 - g T Co issioner 6 � Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (i.e. no purchased gas). Gas purchased from PBU was used as follows (all in mscf): fuel gas 613,256, pilot purge 2670, injection 337,924. I hereby certify that the fo Ding is true nd Corr ct to the best of my knowledge. Note: All volumes must be corrected Signature Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psis and to a _ /ry (/ tem of 60o F. Authority 20 gL� Printed Name Bernard W. Hajny Phone (907)564 -5028 Date O b AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate 4 . Y Northstar Gas Flaring Incident Report 6/1/2008 - 6/30/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 551 Planned Greater Than 1 Hour 06/29/2008 09:28 06/29/2008 11:12 104.00 219 Starting up plant, opening wells. Bringing on wells for H.P. and L.P. startup. Plant Startup LP 06/29/2008 09:46 06/29/2008 10:59 73.00 121 Starting up plant, opening wells. Bringing on wells for H.P. and L.P. startup. Plant Startup HP1 06/29/2008 11:07 06/29/2008 14:59 232.00 480 Starting up plant, opening wells. Bringing on wells for H.P. and L.P. startup. Plant Startup HP1 06/29/2008 11:19 06/29/2008 14:57 218.00 652 Starting up plant, opening wells. Bringing on wells for H.P. and L.P. startup. Plant Startup LP Group Total 1,473 Unplanned Less Than 1 Hour Group Total 5,476 Unplanned Greater Than 1 Hour 06/05/2008 14:58 06/05/2008 16:38 100.00 561 Loss of C solar resulted in L.P. Restated solar and L.P. compressor. Upset LP compressor trip and flaring 06/05/2008 14:59 06/05/2008 16:45 106.00 399 Loss of C solar resulted in L.P. Restated solar and L.P. compressor. Upset HP1 compressor trip and flaring 06/18/2008 18:18 06/18/2008 20:26 128.00 560 Inadvertent ESD LP Compressor Restart Equipment Outage HP1 06/18/2008 18:43 06/18/2008 20:21 98.00 383 Inadvertent ESD LP Compressor Restart Equipment Outage LP 06/28/2008 08:50 06/28/2008 11:28 158.00 329 Lost H.P. and L.P. compressors. Trying to restart and cutting wells. Upset LP l 06/28/2008 09:50 06/28/2008 12:09 139.00 776 Lost H.P. and L.P. compressors. Trying to restart and cutting wells. Upset HP1 06/28/2008 11:34 06/28/2008 12:37 63.00 32 Lost H.P. and L.P. compressors. Trying to restart and cutting wells. Upset LP 06/28/2008 13:39 06/28/2008 15:17 98.00 37 Lost H.P. and L.P. compressors. Trying to restart and cutting wells. Upset LP 06/28/2008 19:13 06/28/2008 21:00 107.00 44 facility is shutdown mode. due to vented vessels Upset LP proration and vessels were venting 06/30/2008 09:49 06/30/2008 13:01 192.00 77 TEG system upset. Adjusting rates, temperatures Upset LP / 06/30/2008 17:33 06/30/2008 22:30 297.00 114 TEG system upset. Adjusting rates, temperatures Upset LP \ 06/30/2008 23:00 07/01/2008 03:28 268.00 126 TEG system upset. High reboiler Adjusting flow rates and temperatures. Upset LP Group Total 3,436 Report Total 10,936 NSTR FlarelncidentDetails 06 -2008 FINAL.xls 7/8/2008 1:14 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Jul -2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 15,802,452 Northstar 590100 100.0° Northstar 590500 0.0% % .0 /o 8. Flared or vented 1 hour or less 3,016 9. Flared or vented more than 1 hour (see instr.) 925 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 a ,.,.:. t : ° u'• ; .:: ,,Ot. tlseOnly 12. Other (see instructions) 0 Authorization >1 hr. � MCF Safety 13. TOTAL VOLUME (ITEMS 6 -12) 15,806,393 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,187,278 Waste: MCF 16. Transferred from: Commissio r Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (includes tract operation NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 642,680 pilot purge 2759, injection 541,839. I hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected (LULL_ Signature �s.�(„(, , Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a temperature of 60o F. Authority 20 Printed Name Bernard W. Hajny Phone (907)564 -5028 Date AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate ■ P. Northstar Gas Flaring Incident Report 7/1/2008 - 7/31/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 0 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 3,016 Unplanned Greater Than 1 Hour 7/1/2008 3:31 7/1/2008 5:10 99 42 TEG system upset. High reboiler pressure. Adjusting flow rates and temperatures. Upset LP 7/1/2008 5:36 7/1/2008 13:54 498 228 TEG system upset. High reboiler pressure. Adjusting flow rates and temperatures. Upset LP 7/2/2008 16:43 7/2/2008 18:26 103 43 Adjusting well sets. Cut back on swing wells. Upset LP 7/2/2008 19:09 7/2/2008 20:46 97 41 Adjusting well sets. Cut back on swing wells. Upset LP 7/2/2008 21:25 7/2/2008 23:06 101 44 Adjusting well sets. Cut back on swing wells. Upset LP 7/5/2008 17:06 7/5/2008 19:20 134 527 Attemping to do a HP start up. Adjusted swing wells to lower flare. Plant Startup LP Group Total 925 Report Total 3,941 NSTR FlarelncidentDetails 07 -2008 FINAL.xls 8/7/2008 11:31 AM • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Aug -2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 15,364,284 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 1,282 9. Flared or vented more than 1 hour (see instr.) 1,900 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 t$ Authorization >1 hr: MCF �,�{� Safety ° / 13. TOTAL VOLUME (ITEMS 6 -12) 15,367,466 MCF Lease Use 14. NGL Gas Equivalent MCF 1,248,233 Conservation 15. Purchased gas Waste: MCF 16. Transferred from: 'Q —06 /wi Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (includes tract operation NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 633,147 pilot purge 2759, injection 612,327. _.c I hereby certify that the foregoing is true and correct to the best of my knowledge. ° Note: volumes must corrected f� Signature ja.i�'i.�'t.� //L� Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a / temperature of 60o F. Authority 20 VI / Printed Name Bernard W. Hajny Phone (907)564 -5028 Date 1 e �1 / AAC25.235. Form 10 -422 Rev. 1/2004 «/ Submit in Duplicate Northstar Gas Flaring Incident Report 8/1/2008 - 8/31/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 482 Planned Greater Than 1 Hour 08/16/2008 14:45 08/16/2008 16:28 103.00 . 74 Shutdown LP Compressor for TAPS shutdown. Depressuring LP for shutdown of facility for Plant Integrity LP maintenance during shutdown. 08/17/2008 13:35 08/17/2008 18:58 323.00 956 LP compressor shutdown after trying to start Restart LP Compressor Plant Integrity LP 08/17/2008 14:41 08/17/2008 19:04 263.00 637 LP compressor shutdown after trying to start Restart LP Compressor Plant Integrity HP1 Group Total 1,667 Unplanned Less Than 1 Hour Group Total 800 Unplanned Greater Than 1 Hour 08/30/2008 14:07 08/30/2008 15:22 75.00 96 Bumped the HP Flare off of the HP Separator Backed off swing well. Flaring stopped Upset HP1 pressure control valve to flare. 08/31/2008 16:40 08/31/2008 17:58 78.00 138 Bumped the HP Flare off of the HP Separator Backed off swing well. Flaring stopped Upset HP1 pressure control valve to flare. Group Total 233 Report Total 3,182 NSTR FlarelncidentDetails 08 -2008 FINAL.xls 9/5/2008 4:03 PM 4 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Sep -2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 15,814,300 Northstar 590100 100.0% i Northstar 590500 0.0% 8. Flared or vented 1 hour or less 1,764 9. Flared or vented more than 1 hour (see instr.) 3,360 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 - 12. Other (see instructions) 0 Authorization >1 hr: 3 ' ^ MCF ^` Safety �U 13. TOTAL VOLUME (ITEMS 6 -12) 15,819,424 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,323,577 Waste: MCF 16. Transferred from: Zd -68 C missioner " Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (includes tract operation NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 648,028 pilot purge 2670, injection 672,879. I hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected Signature Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a temperature of 60o F. Authority 20 Printed Name Paul D. Syring Phone (907)564 -5028 Date /Q / 4 AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate s , Northstar Gas Flaring Incident Report 9/1/2008 - 9/30/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 106 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 1,658 Unplanned Greater Than 1 Hour 09/20/2008 16:35 09/20/2008 23:08 393.00 1,606 MI cable failure caused LP shut down Shut in wells Upset HP1 09/20/2008 16:58 09/20/2008 23:01 363.00 1,754 MI cable failure caused LP shut down Shut in wells Upset LP Group Total 3,360 Report Total 5,124 NSTR FlarelncidentDetails 09 -2008 FINAL.xls 10/6/2008 2:58 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Oct -2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 14,747,435 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 5,039 9. Flared or vented more than 1 hour (see instr.) 2,962 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 Authorization >1 hr: MCF Safety 2 g6 y 13. TOTAL VOLUME (ITEMS 6 -12) 14,755,436 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,364,819 Waste: n MCF 16. Transferred from: � , % � az( Commissioner Da 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (includes tract operation NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 628,191 pilot purge 2759, injection 733,869. I hereby certify that the foregoing is true and correct to the best of my knowledge. Note: Alt volumes must be corrected Signature Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a f temperature of 60o F. Authority 20 Printed Name Paul D. Syring Phone (907)564 -5028 Date /1 I i 3'O AAC25.235. Form 10-422 Rev. 1/2004 Submit in Duplicate • Northstar Gas Flaring Incident Report 10/1/2008 - 10/31/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 1,758 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 3,281 Unplanned Greater Than 1 Hour 10/04/2008 00:46 10/04/2008 06:24 338.00 1,072 Plant Shut -Down Restart Equipment Outage LP 10/04/2008 00:48 10/04/2008 06:29 341.00 845 Plant Shut -Down Restart Equipment Outage HP1 10/17/2008 15:25 10/17/2008 17:46 141.00 490 Lost LP due to vibration probe. Shut in high gas wells. Upset LP 10/17/2008 15:26 10/17/2008 17:49 143.00 555 Lost LP due to vibration probe. Shut in high gas wells. Upset HP1 Group Total 2,962 Report Total 8,001 NSTR FlarelncidentDetails 10 -2008 FINAL.xls 11/13/2008 10:03 AM 1' , STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Nov -2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 16,975,656 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 799 9. Flared or vented more than 1 hour (see instr.) 0 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 Authorization >1 hr: MCF Safety 13. TOTAL VOLUME (ITEMS 6 -12) 16,976,455 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,397,487 Waste: MCF 16. Transferred from: Commissioner Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (includes tract operation NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 676,931 pilot purge 2670, injection 717,886. I hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected Signature Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a temperature of 60o F. Authority 20 Printed Name Paul D. Syring Phone (907)564 -5028 Date / ; 6 AAC25.235. Form 10 -422 Rev. 1/2004 Submit in Duplicate Northstar Gas Flaring Incident Report 11/1/2008 -11 /30/2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 376 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 423 Unplanned Greater Than 1 Hour Group Total 0 Report Total 799 NSTR FlarelncidentDetails 11 -2008 FINAL.xls 12/5/2008 9:40 AM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 2. Facility Name 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 N1 Northstar BP Dec -2008 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold 0 Pool Name Pool Code Percent 7. Reinjected 16,544,022 Northstar 590100 100.0% Northstar 590500 0.0% 8. Flared or vented 1 hour or less 2,908 9. Flared or vented more than 1 hour (see instr.) 0 10. Pilot and Purge 0 11. Used for lease operations (specify in Remarks) 0 12. Other (see instructions) 0 Authorization >1 hr: MCF Safety 13. TOTAL VOLUME (ITEMS 6 -12) 16,546,930 MCF Lease Use 14. NGL Gas Equivalent MCF Conservation 15. Purchased gas 1,708,989 Waste: MCF 16. Transferred from: Commissioner Date 17. Transferred to: (Express as a negative #) 18. Remarks: Blocks 6 - 13 include only produced gas from Northstar (includes tract operation NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 697,399 pilot purge 2759, injection 1,008,831. I hereby certify_that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected Signature Title Manager, Production Taxes and Royalties Alaska to pressure of 14.65 psia and to a j temperature of 600 F. Authority 20 Printed Name Paul D. Syring Phone (907)564 -5028 Date /j� 1 � c AAC25 Form 10 -422 Rev. 1/2004 Submit in Duplicate Northstar Gas Flaring Incident Report 12/1/2008 -12/31 /2008 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour Group Total 942 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 1,966 Unplanned Greater Than 1 Hour Group Total 0 Report Total 2,908 NSTR FlarelncidentDetails 12 -2008 FINAL.xls 1/5/2009 3:50 PM