The URL can be used to link to this page

Home My WebLink AboutNorthstar Gas DispositionState of Alaska AOGCC Gas Disposition Files Year: 2013 Facility: Northstar Operator: BP EXPLORATION (ALASKA) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION tvon: scar BP Disposition g12,151,233 20. For production from multiple pools, list conull 1. Sold Total Volume. Pool Name Reinjected Northstar Northstar Flared or vented 1 hour or less . Flared or vented more than 1hour (see instr.) 104,310 0. Pilot and Purge 0 1. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) 0 Authorization - 14. TOTAL VOLUME (ITEMS 6.13) 12,255,543 15. NGL Gas Equivalent 16. Purchased gas 601,677 Waste: 17. Transferred from: 18. Transferred to: (Express as a negative #) s. Remarks: Tlocks 6 - 14 include only produced gas from Northstar (includes tract operations NS08 and was used as follows (all in mscf): fuel gas 512,181, pilot purge 5456, injection 84,040. Use Commissioner not gas Date Gas purchased from ,�%��Q Manager, Production Taxes and Royalties Note: All volumes must be Signature 01 K a Title Alaska `"`�CCCC I corrected to pressure of 14.65 psia led Name Diane Colley Ph—c.. _. � and to a temperature of 60o F. ronTcc„ Northstar Gas Flaring Incident Report 1/1/2013 - 1/31/2013 Start Date / Time End Date / Time Minutes Planned Less Than 1 Hour Group Total MCF Incident Cause / Description 0 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 0 Unplanned Greater Than 1 Hour 1/1/2013 0:00 1/31/2013 23:59 31 days 104,310 LP Compressor failure Group Total 104,310 Report Total 104,310 NSTR FlarelncidentDetails 01-2013 FINAL.xls Remediation Taken Event Type Flare Process optimization to Equipment LP, HPI, minimize flaring Outage HP2 2/11/2013 1:58 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PPrnni tlf%l=n r_nc CHOPS Flare Incident Details 1/1/2013 -1/31/2013 Start Date/Time Entl DatsRime Minutes Flare MCF Assist MCF Incident/Cause Description Remediation Unplanned Less than 1 Hour Taken 14Jan-13 22:46 r -- 14 -Jan -13 22:46 1 0.00 0.00 16 -Jan -13 3:42 16 -Jan -13 3:42 1 0.00 0.00 16 -Jan -13 3:43 16 -Jan -13 3:43 1 0.00 0.00 16 -Jan -13 6:25 i6Jan-13 6:26 1 0.01 0.00 16 -Jan -13 9:17 16 -Jan -13 9:18 1 0.02 0.00 16 -Jan -13 15:45 18-__� -Jan-13 10:54 4- 18 -Jan -13 11:12 16 -Jan -13 15:47 18 -Jan -13 1L0:57 lWan-13 11:14 2 3 2 0.02 0.23 0.07 0.00 0.00 0.00 18 -Jan -13 12:20 18 -Jan -13 12:20 1 0.01 0.00 18 -Jan -13 1228 j_18 -Jan -13 12:31 r18 -Jan -13 14:56 18 -Jan -13 12:31 18Jan-13 12:33 18 -Jan -13 14:57 3 2 1 0.05 0.04 0.02 0.00 0.00 0.00 18 -Jan -13 20:16 18 -Jan -13 20:16 1 0.01 0.00 18-JarF13 20:16 18 -Jan -13 20:19 1 0.01 0.00 23 -Jan -13 23:11 23 -Jan -13 23:12 1 0.01 0.00 -Jan-13 14:06 3i 1 -Jan -13 11:42 29 -Jan -13 14:11 31 -Jan -13 11;453 5 0.10 on3 0.00 nnn Unplanned Less than 1 Hour Total: Unplanned Greaterthan 1 Hour 24 -Jan -13 21:33 24 -Jan -13 23:43 130 Unplanned Greater than 1 Hour Total: Total Flared Volume (MCF): BP Exploration _I 1 0.63 0.00 # of Events: 17 0.45 I 0.00 0.46 0.00 # of Events: 1 1.08 0.00 #of Events: 18 pc.11y JolKnlAy -��p hrv1�U - fgncr� . Page 1 of 1 by Start Date/Time I End Datarrime Unplanned Less than 1 Hour 07 -Jan -13 9:56 07 -Jan -13 9:59 07 -Jan -13 10:13 07 -Jan -13 10:14 0.00 21 an -13 14:55 10 -Jan -13 14:56 an -13 15:00 F 10 -Jan -13 15:06 an -13 20:22 14 -Jan -13 20:43 14 -Jan -13 22:49 14 -Jan -13 23:41 15 -Jan -13 0:26 15 -Jan -13 0:27 i 15 -Jan -13 0:34 15 -Jan -13 0:36 I 5 -Jan -13 1:36 15 -Jan -13 1:41 1 0.33 15 -Jan -13 1:59 15 -Jan -13 2:00 15-1an-13 2:02 15 -Jan -13 2:04 15 -Jan -13 2:10 15 -Jan -13 2:11 15 -Jan -13 2:13 15 -Jan -13 2:14 0.30 0.00 15 -Jan -13 2:25 15 -Jan -13 2:26 -Jan -13 2:28 15 -Jan -13 2:29 �75 5-Jan-13 2:30 15 -Jan -13 2:32 15 -Jan -13 2:35 15 -Jan -13 2:37 15 -Jan -13 3:34 15 -Jan -13 3:38 !Y 15 -Jan -13 3:40 15 -Jan -13 3:42 115 -Jan -13 3:45 15 -Jan -13 3:46 15 -Jan -13 3:54 15 -Jan -13 3:58 15 -Jan -13 8:50 15 -Jan -13 9:00 1 0.32 15 -Jan -13 9:04 15 -Jan -13 9:11 15 -Jan -13 9:14 15 -Jan -13 9:16 15 -Jan -13 9:18 15 -Jan -13 9:31 15 -Jan -13 9:35 15 -Jan -13 9:43 15 -Jan -13 9:55 15Jan-13 9:58 15 -Jan -13 10:10 15 -Jan -13 10:13 15 -Jan -13 10:18 15 -Jan -13 1023 15 -Jan -13 10:25 15 -Jan -13 10:28 15 -Jan -13 10;31 15 -Jan -13 10:33 BP Exploration Minutes I Flare MCF I Assist MCF 3 1 1 0.96 0.33 0.31 0.00 0.00 0.00 6 16.67 0.00 21 186.00 0.00 52 73.64 0.00 1 0.32 0.00 2 0.65 0.00 5 1.98 0.00 1 0.33 0.00 2 0.30 0.00 1 0.36 0.00 1 0.30 0.00 1 0.32 0.00 1 0.62 0.00 2 0.30 0.00 2 1.28 0.00 4 1.62 0.00 2 0.64 0.00 1 0.32 0.00 4 1.59 0.00 10 4.22 0.00 7 2.17 0.00 2 0.63 0.00 13 3.74 0.00 8 3.33 0.00 3 1.25 0.00 3 0.95 0.00 5 1.59 0.00 3 0.62 0.00 2 0.64 0.00 Milne Point Unit Flare Incident Details 1/1/2013 -1/31/2013 IncidentfCause Description Remediation Taken Page 1 of 2 by Milne Point Unit Flare Incident Details d 1/1/2013 -1/31/2013 Start Date/Time End Date/Time Minutes 15 -Jan -13 71:35 15 -Jan -13 71:42 7Remediation 15 -Jan -13 11:45 15 -Jan -13 12:19 34 15 -Jan -13 12:39 15 -Jan -13 12:50 11 15 -Jan -13 12:52 15 -Jan -13 12:52 15 -Jan -73 12:53 15Jan-13 12:57 q �---- 15 -Jan -13 13:01 15 -Jan -13 13:11 10 15 -Jan -13 13:13 15 -Jan -13 13:19 g 15 -Jan -13 13:25 15 -Jan -13 13:27 y -- 15 -Jan -13 14:59 15 -Jan -13 15:00 7 16 -Jan -13 6:40 16 -Jan -13 6:44 q '--- 20 -Jan -132005 20 -Jan -13 20:07 2 26-Jan_13 12:52 26 -Jan -13 72:54 2 Unplanned Less than 1 Hour .001: Unplanned Greater than 7 Hour Flare MCF 2.49 35.17 4.78 0.32 1.56 4.53 2.89 0.64 0.33 8.80 0.31 1.34 370.59 Assist MCF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 IncldentlCause Description # 43 of Events: Taken 74 -Jan -13 2043 14 -Jan -13 22:47 124 i_ 15 -Jan -13 4:21 15 -Jan -13 8:50 269 Unplanned Greater than l Hour Total: 341.48 295'07 636.55-_. 0.00 0.00 0.00 0701 Turbine shut down due to high pressure differential on th inlet air filters during Phase 3 weather conditions. This cascaded into a gas compression shutdown. While bdnging the plant back on line, a high high level in the Oil Reserve Tank caused a full field shutdown, # of Events: 2--.__._„_� Maintenance was called and the purge on the gas compressors and 1 train was started. Maintenance was called and BPXA worked to bring the field and plant back up and to stop the flaring as soon as ossible. Total Flared Volume (MCF): 1,007.13 0.00 # of Events:45 BP Exploration Page 2 of 2 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Sold --^ rw•�ww, .,ran mu4lpie p(g13, lut GOrIV g Total Volume Reinjected Pool Neme 10,237,889 Nonhstar Flared «varied 1 hour or less NOrthstar 99 Flared or ,ented mon, than 1 hour (see i ah ) 91,205 . Pilot and PurW 0 Assist Gas 0 Fuel gas used in lease opaatbna 0 Other (see InstNClions) -- O1hClal Use TOTAL VOLUME (ITEMS 6-1J) ANFptuation>1 hr: Salary 10,329,173 NGL Gas Equivalent Lease Use Purchased gas Conaerva6nn 551,350 Transferred from Waste: Translenvid to: (Express as a negative t) L Commissioner Remarks Blocks 6 14 I ri m Date -• ly r wuwd yas ,mom .,-,,,.star (includes trail operations NS08 and NS34A but not gas from PBU)- Gas purchased from PBU was used as follows (all in maory: fuel gas 478,705, pilot Purge 4,928, injection 67,717, ehy ceniHamt' �:n-1-11-11.1'.. rue antl--matt to the hest of Fry, knomedge Signature, 61011 U �.r'`i.-�L .� Manager, Productlon Taxes and Royalties Note: All Volumes must be y Two Alaska[ /1 corrected to ted Name Diane Colla '-) [ •�jj �1* and to a temperature off SGO Pala Ptgr,e (507)564.5776 -as. � Pe lure of 60o F. Northstar Gas Flaring Incident Report 2/1/2013 - 2/28/2013 Start Date / Time Planned End Date / Time Minutes MCF Incident Cause / Description Less Than 1 Hour 3 Group Total 3 Planned Greater Than 1 Hour 2/26/20136:30 2/261201316:13 1,137 LP purge 2/26/2013 6:32 2/26/2013 16:30 1,602 N/A LP purge Group Total 2,739 N/A Unplanned Less Than 1 Hour 96 Group Total 96 Unplanned Greater Than 1 Hour 2/1/2013 0:00 2/24/2013 23:59 24 days 88,466 LP Compressor failure Group Total 88,466 Report Total 91,304 NSTR FlarelncidentDetails 02-2013 FINAL -As Remediation Taken Process optimization to minimize flaring Event Type Flare Equipment LP, HN, Outage HP2 3/11/2013 3:52 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION lcility Name ,._„ 6 Sold 0 7. Reinjected 16,417,094 8. Flared or vented 1 hour or less 474 9. Flared or vented more than 1 hour (see instr.) 0 10. Pilot and Purge 0 it. Assist Gas 0 12. Fuel gEusedse operations.013. Otherns) 0 14. TOTAL VOLUME (ITEMS 6-13) 16,417,568 15. NGL Gas Equivalent Use Total Volume, 16. Purchased gas Conservation 743,102 Waste: 17. Transferred from: 18. Transferred to: (Express as a negative #) Commissioner 9. Remarks: Blocks 6 - 14 include only produced gas from Northstar (includes tract operations NS08 and N634A but not gas PBU was used as follows (all in msco: fuel gas 671,090, pilot purge 5,456, injection 66,556. Gas as a Date =ter ,.�Irny mat the roregoing is true and correct to the best of my knowledge. ,� S Manager, Production Taxes and Royalties Signature � c!" wnn Y Note: All volumes must be �( (// Tine Alaska �� corrected to pressure of 14.65 psia led Name Diane Colley L /�h/� and to a temperature of 600 F. Phone (907)564-5775 n�re STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION ime 3. Field 4. Operator 6 Sold 0 7. Reinjected 15,621,940 8. Flared or vented 1 hour or less 238 9. Flared or vented more than 1 hour (see instr.1 3,233 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations 0 13. Other (see instructions) 0 A 14. TOTAL VOLUME (ITEMS 6-13) 15,625,411 15. NGL Gas Equivalent 16. Purchased gas 694,358 N 17. Transferred from. 18. Transferred to. (Express as a negative #) Is Remarks Blocks 6 -14 include only produced gas from Northstar (includes tract operations used as follows (all in mscf): fuel gas 621,539, pilot purge 5,280, injection 67,539. and correct to the best of my Name Use Use C" ommissioner and NS34A but not gas from PBU). Apr -2013 pool as a percent of 1 32.3 G -:'3 /3 Date was Signature Title Manager, Production Taxes and o alties Alaska Note: All volumes must be corrected to Printed �r � � JrRy, pressure of 14.65 psia and to a Name Diane Colley (G fff Phone (907)564-5775 Date �/ /C.t// temperature of 60o F. Authority 20 j/LF 6112113 Northstar Gas Flaring Incident Report 4/1/2013 - 4/30/2013 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Planned Less Than 1 Hour 238 Group Total 238 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour Group Total 0 Unplanned Greater Than 1 Hour Remediation Taken Event Type CGF upset and shutdown. Fuel gas supply valve ZA-9421 CGF stabilized and fuel gas 4/22/2013 5:29 4/22/2013 20:08closed resulting in plant supply valve opened. 3,233 shutdown. Restarted plant. Other Group Total 3,233 Report Total 3,471 NSTR FlarelncidentDetails 04-2013 FINAL.xis Flare HP1, HP2, LP 5/10/2013 10:01 AM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY RFPnRT nF panni If Cn SAO nIC%r%r%r%iTm. wm M STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION me 3. Field N1 4. Operator Northstar BP 1Oo Volume N.C. 20. For production from multiple pools, list contribution of 6 Sold 0 T Reinjected 14,514,683 8. Flared or vented 1 hour or less 5,653 9. Flared of vented more than 1 hour (see instr.) 8,306 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) 0 P 14. TOTAL VOLUME (ITEMS 6-13) 14,528,642 15. NGL Gas Equivalent 16. Purchased gas 632,152 to 17. Transferred from. 18. Transferred to: (Express as a negative #) 19. Remarks Blocks 6 - 14 include only produced gas from Northstar (includes tract operations used as follows (all in mscf): fuel gas 558,787, pilot purge 5,280, injection 68,085. and Use Commissioner but not gas from pool as a percent 1 nn,r MCF Date Gas purchased from PBU was =aoy cemly mm me ',,,going is true and correct to the best of my knowledge. Signature �// I� h /7 7ttemperauturemof Al volues must be corrected to / tem T!r 41J e__ L.ott�i� Title Manager, Production Taxes and Royalties Alaskasre of 14.65 psia and to a Printed / / Name Diane Colley Phone (907)564-5775 Date 600 F. Authority 20 Northstar Gas Flaring Incident Report 6/1/2013 - 6/30/2013 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Planned Less Than 1 Hour 4,612 Group Total 4,612 Planned Greater Than 1 Hour 6/2/2013 20:12 6/2/2013 21:15 62 6/3/2013 18:20 6/3/2013 20:27 127 6/3/2013 22:03 6/3/2013 23:51 109 6/4/2013 19:04 6/4/2013 23:01 238 6/5/2013 1:00 6/5/2013 2:13 73 6/5/2013 2:50 6/5/2013 3:55 65 6/5/2013 7:17 6/5/2013 10:03 166 6/6/2013 0:00 6/6/2013 7:30 450 6/9/2013 8:11 6/9/2013 9:21 71 6/9/2013 9:23 6/9/2013 11:54 151 Remediation Taken Event Type Commissioning HP1 Commissioning HP1 Commissioning HP1 Commissioning HPI Commissioning HP1 Commissioning HP1 Commissioning HP1 Commissioning HP1 Equipment Outage HP1 Equipment Outage HP1 Flare NSTR FlarelncidentDetails 06-2013 FINAL REV1.xls 7/15/2013 2:24 PM Depressuring NS -7 through test seperator to unload it and 188 bring it on line Planned controlled flaring Depressuring NS -7 through test seperator to unload it and 500 bring it on line Planned controlled flarinc Depressuring NS -7 through - test seperator to unload it and 553 bring it on line Planned controlled flaring Depressuring NS -7 through test seperator to unload it and 969 bring it on line Planned controlled flaring Depressuring NS -7 through test seperator to unload it and 271 bring it on line Planned controlled flaring Depressuring NS -7 through test seperator to unload it and 242 bring it on line Planned controlled flaring Depressuring NS -7 through test seperator to unload it and 802 bring it on line Planned controlled flaring Depressuring NS -7 through test seperator to unload it and 2,120 bring it on line Planned controlled flaring Proration lifted and attempting Finally started HP -A and 615 to start HP -A compressor increased plant rates Proration lifted and attempting Finally started HP -A and 788 to start HP -A compressor increased plant rates Event Type Commissioning HP1 Commissioning HP1 Commissioning HP1 Commissioning HPI Commissioning HP1 Commissioning HP1 Commissioning HP1 Commissioning HP1 Equipment Outage HP1 Equipment Outage HP1 Flare NSTR FlarelncidentDetails 06-2013 FINAL REV1.xls 7/15/2013 2:24 PM Group Total 7,048 Unplanned Less Than 1 Hour 1,041 Group Total 1,041 Unplanned Greater Than 1 Hour Adjusted well set to Ambient temperatures, wind compensate for temperature 6/17/2013 11:12 6/17/2013 16:21 309 628 direction change, and well set swings in plant. Other LP Adjusted well set to Ambient temperatures, wind compensate for temperature 6/17/2013 11:17 6/17/2013 16:10 294 630 direction change, and well set swings in plant. Other HP1 Group Total 1,258 Report Total 13,959 NSTR FlarelncidentDetails 06-2013 FINAL REV1.x1s 7/15/2013 2:24 PM Hunt, Jennifer L (DOA) From: AK, HSSEE Env Adv North [ACTENVADVISOR@BP.com] Sent: Tuesday, June 11, 2013 8:36 AM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, OPS Nstar Lead Tech; AK, OPS Nstar DIM; Cooke, Alison D; Fiedler, Anne M; Mason, Ann M (HOEFLER CONSULTING GROUP (HCG)); AK, HSSEE Env TL (North Slope) Subject: Northstar Planned Flaring Events June 2 - 5 and June 9 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of planned flaring events of greater than one hour which occurred at the Northstar Production Facility from June 2 through June 5, 2013 and then again on June 9, 2013. The first event occurred at 20:12 hours on June 2 with the last event occurring at 09:23 hours on June 9. There were two causes of these multiple flaring events. Flaring events from June 2 through June 5 were a result of the depressurizing of Northstar well NS -07 through the test separator to unload it and bring it online. Approximately 1500 Bbl of water was pumped down -hole during well work activities and it was necessary to lower the pressure in the test separator to get the water to flow to the surface. The two flaring events that occurred on June 9 were a result of the TAPS proration. As production rates slowed a compressor unexpectedly tripped off-line as wells were shut in and it was necessary to flare . Summary of planned flaring events: June 2, 2013 (62.23 min, 187.69 MSCF) June 3, 2013 (126.67 min, 500 MSCF) June 3, 2013 (108.83 min, 552.55 MSCF) June 4, 2013 (237.50 min, 968.56 MSCF) June 5, 2013 (72.83 min, 270.83 MSCF) June 5, 2013 (65.33 min, 242.33 MSCF) June 5, 2013 (166.33 min, 802.38 MSCF) June 9, 2013 (70.50 min, 615.35 MSCF) June 9, 2013 (150.83 min, 788.29 MSCF) All attempts were made with the intent to unload the well to allow natural flow. Flaring for this purpose was kept to a minimum necessary to reduce well tubing pressure. Given these circumstances, we believe that we took all necessary actions in accordance with good oil field engineering practices and conservation purposes to minimize the volume of gas released, burned, or permitted to escape to the air. These volumes will also be reported to you on the Facility Report of Produced Gas Disposition Form (Form 10-422). Please let us know if you have any questions or require additional information. Thanks, Trey Drake AK, HSSEE Environmental Advisor North W (907)659-6810 Pager 659-5272, #4313 Harmony (907)659-6441 Alternate: Ken Miller Jennifer L From: AK, HSSEE Env Adv North [ACTENVADVISOR@BP.com] Sent: Thursday, June 20, 2013 5:08 PM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; Cooke, Alison D; Fiedler, Anne M; Mason, Ann M (HOEFLER CONSULTING GROUP (HCG)); AK, HSSEE Env TL (North Slope); Mihm, Kevin Subject: Northstar unplanned flaring event notification: June 17 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of 1 unplanned flaring event of greater than one hour which occurred at the Northstar Production Facility on June 17, 2013. The unplanned event occurred from 11:12 to 16:24 when a maintenance worker inadvertently caused an upset condition resulting in the loss of the LP compressor. Summary of unplanned flaring event: June 17, 2013 (312 minutes, 1,265 MCF) All attempts were made to identify problems, expedite maintenance, and keep flaring & assist gas to a minimum. Given these circumstances, we believe that we took all necessary actions in accordance with good oil field engineering practices and conservation purposes to minimize the volume of gas released, burned, or permitted to escape to the air. These volumes will also be reported to you on the Facility Report of Produced Gas Disposition Form (Form 10-422). Thanks, Ken Miller AK, HSSEE Environmental Advisor North W (907)659-6810 Pager 669-5272, #4313 Harmony (907)659-6441 Alternate: Trey Drake STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number2. 0290000025 Facility Name N1 3. Field Northstar 4. Operator 5. Month/Year of Disposition I BID I Jul -2013 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 13,251,769 - Northstar 590100 93.98% Northstar 590150 6.02% 8. Flared or vented 1 hour or less 3,717 100.00% 9. Flared or vented more than 1 hour (see instr.) 3,837 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) 0 Official Use Only Authorization hr: Safety MCF 14. TOTAL VOLUME (ITEMS 6-13) 13,259,323 Lease Use TC F 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 593,329 waste: MCF 17. Transferred from: i mmission r Date 18. Transferred to: (Express as a negative #) 19. Remarks Blocks 6 - 14 include only produced gas from Northstar (includes tract operations NS08 and NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in nrl fuel gas 519,978, pilot purge 5,456, injection 67,895. 1 hereby certify that the foregoing is true and coned to the best of my knowledge. Note: All volumes must be corrected to Signature Title Manager, Production Taxes an Ro alties Alaska pressure of 14.65 psia and to a Printed / 2 temperature of 60o F. Authority 20 Name Diane Coll Phone 907)564-5775 Date �J AAC25.235. Northstar Gas Flaring Incident Report 7/1/2013 - 7/31/2013 Start Date / Time End Date / Time Minutes MCF Planned Less Than 1 Hour Outage HP2 112 Group Total 112 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour 3,605 Group Total 3,605 Incident Cause / Description Unplanned Greater Than 1 Hour Fire and gas PM's shut down 7/8/201316:17 7/8/201317:18 61 1,620 plant 7/13/2013 14:06 7/13/2013 17:15 189 2,217 HP B Acoustic Tube Leak Group Total 3,837 Report Total 7,554 NSTR FlarelncidentDetails 07-2013 FINAL.xis Remediation Taken Event Type Flare Normal start up procedure Upset HP2 Shutdown HP B Replace Equipment Probe Outage HP2 8/13/2013 9:46 AM Hunt, Jennifer L (DOA) From: AK, HSSEE Env Adv North [ACTENVADVISOR@BP.com] Sent: Tuesday, July 09, 2013 1:09 PM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; Cooke, Alison D; Fiedler, Anne M; Mason, Ann M (HOEFLER CONSULTING GROUP (HCG)); AK, HSSEE Env TL (North Slope); Mihm, Kevin Subject: Northstar Unplanned Flaring Event Notification: July 8, 2013 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of 1 unplanned flaring event of greater than one hour which occurred at the Northstar Production Facility on July 8, 2013. The unplanned event occurred from 16:17 to 17:18. Annual fire and gas detection system testing was being conducted at the Northstar Facility to ensure integrity of the system. Test plans included steps to prevent facility shut down during the functional testing. Due to miscommunication between the operations team and the fire and gas inspection team, a fire pull station not in the test plan was activated, which resulted in a facility shutdown and blow down of all gas in the facility. Summary of unplanned flaring event: July 8, 2013 (60.67 minutes, 1,620.25 MCF) All attempts were made to identify problems, expedite maintenance, and keep flaring & assist gas to a minimum. Given these circumstances, we believe that we took all necessary actions in accordance with good oil field engineering practices and conservation purposes to minimize the volume of gas released, burned, or permitted to escape to the air. These volumes will also be reported to you on the Facility Report of Produced Gas Disposition Form (Form 10-422). Thanks, Trey Drake AK, HSSEE Environmental Advisor North W (907)659-6810 Pager 659-5272, #4313 Harmony (907)659-6441 Alternate: Ken Miller Hunt, Jennifer L From: AK, HSSEE Env Adv North [ACTENVADVISOR@BP.com] Sent: Monday, July 15, 2013 12:13 PM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; Cooke, Alison D; Fiedler, Anne M; Mason, Ann M (HOEFLER CONSULTING GROUP (HCG)); AK, HSSEE Env TL (North Slope); Mihm, Kevin Subject: Northstar Unplanned Flaring Event Notification: July 13, 2013 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of 1 unplanned flaring event of greater than one hour which occurred at the Northstar Production Facility on July 13, 2013. The unplanned event occurred from 14:02 to 17:21. A failure of an acoustic wand caused a shutdown of the HP compressor. summary of unplanned flaring event: July 13, 2013 (199 minutes, 3, 508 MCF) All attempts were made to identify problems, expedite maintenance, and keep flaring & assist gas to a minimum. Given these circumstances, we believe that we took all necessary actions in accordance with good oil field engineering practices and conservation purposes to minimize the volume of gas released, burned, or permitted to escape to the air. These volumes will also be reported to you on the Facility Report of Produced Gas Disposition Form (Form 10-422). Thanks, Ken Miller AK, HSSEE Environmental Advisor North W (907)659-6810 Pager 659-5272, #4313 Harmony (907)659-6441 Alternate: Trey Drake STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 0290000025 12. Facility Name 1 N1 3. Field Northstar 4. Operator 5. Month/Year of Disposition I BP Au -2013 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold U Pool Name Pool Code Percent 7. Reinjected 14,648,965 Northstar 590100 94.55% Northstar 590150 5.45% 8. Flared or vented 1 hour or less 887 100.00% 6. Flared or vented more than 1 hour (see instr.) 13,477 10, Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operators. 0 13. Other (see instructions) 0 Official Use Only Authorization >i hr Safety 2 /l 117 MCF 14. TOTAL VOLUME (ITEMS 6.13) 14,663,329 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 18. Purchased gas 633,663 Waste: MCF 17. Transferred from Q I- 4415 Commissioner Date 18. Transferred to: (Express as a negative #) 1e. Remarks Blocks 6 - 14 include only produced gas from Northstar (includes tract operations NS08 and NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 561,517, pilot purge 5,456, injection 66,690. 1 hereby certify thattheforegoing is true andcorrect to the best of my knowledge. A j,9 `��-0� Note: All volumes must be corrected to signature Cv(Yv/ � Title Manager, Production Taxes and Royal ies Alaska pressure of 14.65 psia and to a Printed n J % /� temperature of 60o F. Authority 20 Name Diane Coll e Phone (907)564-5775 Date '7 f FJ AAC25.235. VL -J= 4!3/ r 5t Northstar Gas Flaring Incident Report 8/1/2013 - 8/31/2013 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Planned Less Than 1 Hour 656 Group Total 656 Planned Greater Than 1 Hour 8/8/2013 5:44 8/8/2013 7:22 98 226 NGL test TAPS Shutdown/Northstar 8/11/20132:00 8/12/201316:44 2324 13,163 BESD Testing Group Total 13,389 Unplanned Less Than 1 Hour 231 Group Total 231 Unplanned Greater Than 1 Hour 8/22/2013 20:58 8/22/2013 23:18 140 Group Total Adjustment of well set and 88 plant temperatures 88 Report Total 14,364 NSTR FlarelncidentDetails 08-2013 FINAL.xis Remediation Taken Event Type Flare Brought System back up to operating setpoints Other Scheduled Outage, no action taken Other Adjusted incoming well rates to compensate for plant temperature swings Other HP1 LP, HP1, HP2 LNU 9/11/2013 1:49 PM L From: AK, HSSEE Env Adv North [AKHSSEEEnvAdvNorth@bp.com] Sent: Saturday, August 17, 2013 10:48 AM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; Cooke, Alison D; Fiedler, Anne M; Mason, Ann M (HOEFLER CONSULTING GROUP (HCG)); AK, HSSEE Env TL (North Slope); Mihm, Kevin Subject: Northstar Planned Flaring Event Notification: August 11, 2013 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of planned flaring events of greater than one hour which occurred intermittently at the Northstar Production Facility from August 11 through 13, 2013. The flaring event began at 02:00 hours on August 11 with the last event occurring at 17:06 hours on August 13. A total of 6,040 MCF of gas was flared during these events. The intermittent flaring events that occurred during August 11-13 were a result of the TAPS proration. As production rates slowed a compressor came off-line as wells were shut in and it was necessary to flare. All attempts were made with the intent to unload the well to allow natural flow. Flaring for this purpose was kept to a minimum necessary to reduce well tubing pressure. Given these circumstances, we believe that we took all necessary actions in accordance with good oil field engineering practices and conservation purposes to minimize the volume of gas released, burned, or permitted to escape to the air. These volumes will also be reported to you on the Facility Report of Produced Gas Disposition Form (Form 10-422). Please let us know if you have any questions or require additional information. Thanks, Ken Miller AK, HSSEE Environmental Advisor North W (907)659-6810 Pager 659-5272, #4313 Harmony (907)659-6441 Alternate: Trey Drake STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 0290000025 2. Facility Name N1 3. Field Northstar 4. Operator I BP 5. MonthNear of Disposition I Sep -2013 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 14,957,301 Northstar 590100 94.85% Northstar 590150 5.15% 8. Flared or vented 1 hour or less 1,988 100.00% 9. Flared or vented more than 1 hour (see instr.) 584 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) 0 Official Use Only Authorization >1 hr'. Safety �� MCF 14. TOTAL VOLUME (ITEMS 6.13) 14,959,873 Lease Use MCF 15, NGL Gas Equivalent Conservation MCF 16. Purchased gas 645,118 Waste: MCF 17. Transferred from: / / ,[ T r Commissioner -/,/ G Date 18. Transferred to: (Express as a negative #) 19. Remarks Blocks 6 - 14 include only produced gas from Northstar (includes tract operations NS08 and NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 568,864, pilot purge 5,280, injection 70,974. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. /� I Note: All volumes must be corrected to Signature /�/l/ C�jJ rue Manager, Production Taxes and Roy Ities Alaska pressure of 14.65 psia and to a Printed (� /' 2 temperature of 60o F. Authority 20 Name Diane Colley Phone (907)564-5775 Date —J AAC2 .2 5. Northstar Gas Flaring Incident Report 9/1/2013 - 9/30/2013 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Planned Less Than 1 Hour 1,649 Group Total 1,649 Planned Greater Than 1 Hour Take down HPA water wash and fuel mapping. LP flaring from HPA starter gas. HP flaring cade blowdown, purging 9/30/2013 8:42 9/30/2013 9:51 69 331 and well optimization None Required Group Total 331 Unplanned Less Than 1 Hour 339 Group Total 339 Unplanned Greater Than 1 Hour HPA tripped offline while 9/29/2013 15:50 9/29/2013 16:57 67 253 mapping HPB Group Total 253 Report Total 2,572 Event Type Flare Equipment Outage HP1 Adjusted wellset to mitigate Equipment flaring Outage HP1 NSTR FlarelncidentDetails 09-2013 FINAL.xls 10/9/2013 2:18 PM Hunt, Jennifer L From: AK, HSSEE Env Adv North [AKHSSEEEnvAdvNorth@bp.com] Sent: Tuesday, October 01, 2013 8:56 AM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; Cooke, Alison D; Fiedler, Anne M; Mason, Ann M (HOEFLER CONSULTING GROUP (HCG)); Mihm, Kevin; AK, HSSEE Env TL (North Slope) Subject: t4orthstar;.Wnplanned Faring Event Notification: September 29 - 30, 2013 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of 2 unplanned flaring events of greater than one hour which occurred at the Northstar Production Facility on September 29, 2013 and again on September 30, 2013. Both of the unplanned flaring events that are summarized below were due to the HPA shutting down during mapping. Summary of unplanned flaring event: September 29, 2013 from 15:50 to 16:57 (66.50 minutes, 252.87 MCF) September 30, 2013 from 08:42 to 09:51 (69.00 minutes, 331.21 MCF) these circumstances, we believe that we took all necessary actions in accordance with good oil field engineerinAll attempts were made to identify problems, expedite maintenance, and keep flaring & assist gas to a minimum. Given g practices and conservation purposes to minimize the volume of gas released, burned, or permitted to escape to the air. These volumes will also be reported to you on the Facility Report of Produced Gas Disposition Form (Form 10-422). Thanks, Trey Drake AK, HSSEE Environmental Advisor North W (907)659-6810 Pager 659-5272, #4313 Harmony(907)659-6441 Alternate: Ken Miller STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 6. Sold 0 7. Reinjected 16,199,491 8. Flared or vented 1 hour or less 267 9. Flared or vented more than 1 hour (see instr.) 199 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) 0 14. TOTAL VOLUME (ITEMS 6-13) 16,199,957 15, NGL Gas Equivalent 16. Purchased gas 680,115 b ed from:ed EE to: (Express as a negative #) 19. Remarks Blocks 6 - 14 include only produced gas from Northstar (includes tract operations used as follows (all in mscf): fuel gas 605,173, pilot purge 5,456, injection 69,486. --. -_...a /-, �� - iu, eyvu.9 ,.,,a .a�no correct to the best of my Signature 1 / N// //I�rinted Name Diane Collev Safety Use Volume. P.- 1„� Commissioner and NS34A but not gas pool as a L -4-/ Dale Gas purchased from PBU was Title Manager, Production Taxes and o a ties Alaska Note: All volumes must be corrected y All of 14.66 psis and to a �/ I ) Q/ 1 temperature of SOO F. Authority 20 lone (907)564-5775 Date /�.J.J 1--L 1-`3/! 4 Northstar Gas Flaring Incident Report 10/1/2013 - 10/31/2013 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 0 Group Total 0 Planned Greater Than 1 Hour Utilizing test separator/flare to de 10/12/2013 21:42 10/12/2013 23:47 125 199 safepressure well equipment for Equipment Safe No action re Group Total 199 required Out HPI Unplanned Less Than 1 Hour 267 Group Total 267 Unplanned Greater Than 1 Hour 0 Group Total 0 Report Total 466 NSTR FlarelncidentDetails 10-2013 FINAL.xis 11/7/20131:21 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PROD[imm r:oc nicDncrrinKl 1. Facility Number 2. Facility Name 0290000025 N1 Disposition Vo20. 3. Fieldn2,164 4. Operator S. Month/Year of Disposition BP NOV-2013 For production from multiple pools, list contribution of each pool as a percent of Total Volume. 6. Sold Pool Name Pool Code Percent 7. Reinjected 16 Northstar 590100 95.50% Northstar 590150 4.50% e. Flared or vented I hour or less 100.00% Q. Flared or vented more than 1 hour (see instr.) 0 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. D 13. Other (sea instructions) 0 Official Use Only Authorization >I hr Safety MCF td. TOTAL VOLUME (ITEMS 6-13) 16,775,676 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 682,491 Wasia: MCF 17. Transferred from: Commissioner Date 18. Transferred to: (Express as a negative #) 19. Remarks Blocks 6 -14 include only produced gas from Northstar (includes tract operations NS08 and NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 617,777, pilot purge 5,280, injection 59,434. 1 hereby cer iy that the foregoing is tore and coned to the best cf my knowledge. [Note: All volumes must be corrected to Signature Title Manager, Production Taxes and Royalties Alaska pressure of 14.65 psia and to a Printed Name Diane Colley Phone 90 temperature of 60o F. Authority 20 7)564-5775 Date AAC25.235. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS niSpnRITinti 1. Facility Number 2. Facility Name 0290000025 N1 Disposition 3. Field Northstar Volume MCF 4. Operator 5. Month/Year of Disposition 1 BP Dec -2013 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 17,532,434 Northstar 590100 95.86% Northstar 590150 4.14% 6. Flared or vented 1 hour or less 3,195 100.00% 9. Flared or vented more than 1 hour (see instr.) 1,816 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) 0Official Use Only Authorization>1 he Safety MCF 14. TOTAL VOLUME (ITEMS 6.13) 17,537,445 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF is. Purchased gas 719,915 Waste. MCF 17. Transferred from 1_1 / Commissioner m !Date la Transferred to (Express as a negative #) 19. Remarks Blocks 6 - 14 include only produced gas from Northstar (includes tract operations NS08 and NS34A but not gas from PBU). Gas purchased from PBU was used as follows (all in mscf): fuel gas 660,141, pilot purge 5,456, injection 54,318. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. J�/ �j Note: All volumes must be corrected to Signature tYl i�;{'r�/,. Title Manager, Production Taxes and Ro alties Alaska pressure of 14.65 psia and to a Printed 1 temperature of 600 F. Authority20 Name Diane Colleyf Phone(907)564-5775 Date Pill ("j AAC25.2 5. Northstar Gas Flaring Incident Report 12/1/2013 - 12/31/2013 Start Date / Time End Date/ Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 1,163 Group Total 1,163 Planned Greater Than 1 Hour Testing and Calibration of Flow 12/27/2013 7:36 12/27/2013 9:55 208 Meter None Other HP1 Testing and Calibration of Flow 12/27/201310:07 12/27/201311:13 61 Meter None Other HP1 Testing and Calibration of Flow 12/27/201311:16 12/27/201314:29 183 Meter None Other HP1 Group Total 452 Unplanned Less Than 1 Hour 2,032 Group Total 2,032 Unplanned Greater Than 1 Hour Temporary repair and 12/15/2013 2:25 12/15/2013 6:01 646 Valve Leakby continued operational awareness Other LP Temporary repair and 12/15/2013 6:47 12/15/2013 11:15 719 Valve Leakby continued operational awareness Other LP Group Total 1,364 Report Total 5,011 NSTR FlarelncidentDetails 12-2013 FINAL.xls 1/9/2014 9:39 AM