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HomeMy WebLinkAboutNorthstar Gas DispositionState of Alaska AOGCC Gas Disposition Files Year: 2014 Facility: Northstar Operator: BP EXPLORATION (ALASKA) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION I . Facility Number2. 0290000025 Facility Name N1 3. Field Northstar 4. Operator BP 5. Month/year of Disposition I Jan -2014 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 17,564,391 Northstar 590100 94.66% Northstar 590150 5.34% B. Flared or vented 1 hour or less 1522 100.00% 9. Flared or vented more than 1 hour (see instr.) 1,024 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions)0 Offidel Use Only Authorization >i hr Safety �! �� !/ MCF 14. TOTAL VOLUME (ITEMS 6-13) 17,566,937 Lease Use MCF 15, NGL Gas Equivalent Conservation MCF 16. Purchased gas 706,013 Waste: MCF 17. Transferred from. q�2 P Commissioner �o Date 7 ta. 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 660,118, pilot purge 5,456, injection 40,439. 1 hereby certify that the foregoing is true true and correct to the best of my knowledge. / I / •//'/y% Note: All volumes must is corrected to Signature (�(�/f Le L(S[(� me Manager, Production Taxes and Roy ties Alaska pressure of 14.65 psia and to a Printed temperature of 60o F. Authority 20 Name Diane Colley Phone (907)564-5775 Date �✓ / AA 2 .235. Northstar Gas Flaring Incident Report 1/1/2014 - 1/31/2014 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 71 Group Total 71 Planned Greater Than 1 Hour Used test separator to de - inventory NS19 wellhead and 1/20/2014 2:02 1/20/2014 3:49 137 flowline None Commissioning HP1 Group Total 137 Unplanned Less Than 1 Hour 1,451 Group Total 1,451 Unplanned Greater Than 1 Hour Blow down valve on HP 1/10/2014 12:50 1/10/2014 20:18 636 compressor leaking to flare Repairs being planned Other HP1 Blow down valve on HP 1/11/2014 2:38 1/10/2014 3:56 61 compressor leaking to flare Repairs being planned Other HP1 Blow down valve on HP 1/11/2014 10:46 1/11/2014 14:37 190 compressor leaking to flare Repairs being planned Other HP1 Group Total 887 Report Total 2,546 NSTR FlarelncidentDetails 01-2014 FINAL.xls 2/12/2014 10:56 AM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 0290001 2. Facility Name N1 3. Field Northstar 4. Operator BP 5. Month/Vear of Disposition Feb -2014 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 15,964,579 Northstar 590100 95.30% Northstar 590150 4.70% 8. Flared or vented 1 hour or less 153 100.00% 9. Flared or vented more than 1 hour (see inslr.j 0 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) U Official Use Only Authorization >1 hr: Safety MCF 14. TOTAL VOLUME (ITEMS 6-13) 15,964,732 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 652,167 Waste: 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 608,744, pilot purge 4,928, injection 38,495. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. 64 1 n Note: All volumes must be corrected to Signawre //n/7j rue Manager, Production Taxes and yal 1 Alaska pressure of 14.65 psia and to a Printed �JA(• temperature of 60o F. Authority 20 Name Diane ColleyPhone (907)564-5775 Data / 1 AAC2 .2 5. 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 5. Month/Year of Disposition I BP I Mar -2014 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 17,771,864 Northstar 590100 94.25% Northstar 590150 5.75% 8. Flared or vented 1 hour or less 56 100.00% 9. Flared or vented more than 1 hour (see instf 0 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) 17,771,920 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 724,294 waste: 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 654,169, pilot purge 5,456, injection 64,669. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Signature Title Manager, Production Taxes and Ro alties Alaska Printed /J/�jq )/ 1 Name Diane Colley(,{!l tY Phone (907)564-5775 Date !I / Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60o F. Authority 20 AAC25.235. J 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 5. MonthNear of Disposition I BP I Apr -2014 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 13,602,437 Northstar 590100 93.56% Northstar 590150 6.79% 8. Flared or vented 1 hour or less 0 100.36% 8. Flared or vented more than 1 hour (see instr.)1 l� 10. Pilot and Purge 0 11. Assist Gas 0 12. Fuel gas used in lease operations. 0 13. Other (see instructions) ons) 0 Use Only Authorization >l hr Safety 2 /2 / MCF 14. TOTAL VOLUME (ITEMS 6-13) 13,616,688 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 574,107 Waste: MCF 17. Transferred from: 2 -ti _ it 1� Date 18. Transferred to: (Express as a negative M) 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 523,835, pilot purge 5,280, injection 44,992. 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 and oyalties Alaska pressure of 14.65 psia and to a Printed temperature of 60o F. Authority 20 Name Dianty� Phone 907)564-5775 Date AAC25.235. VLA' Northstar Gas Flaring Incident Report 4/1/2014 - 4/30/2014 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 498 Group Total 498 Planned Greater Than 1 Hour Compression train down for 4/25/2014 2:18 4/28/2014 22:08 5510 13,753 fuel gas commissioning None Commissioning HP1 Group Total 13,753 Unplanned Less Than 1 Hour 0 Group Total 0 Unplanned Greater Than 1 Hour 0 Group Total 0 Report Total 14,251 NSTR FlarelncidentDetails 04-2014 FINAL.As 5/7/2014 10:21 AM Hunt, Jennifer L (DOA) From: Cooke, Alison D [Alison.Cooke@bp.com] Sent: Friday, April 25, 2014 12:02 PM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar OIM; AK, OPS Nstar O&M TL; AK, OPS Nstar Facility Engineer; Dunford, Kyler C; AK, HSSEE Env Adv North; Fiedler, Anne M Subject: Northstar Planned Flaring Notification April 27 - May 1, 2014 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing a courtesy notification of planned flaring that will likely exceed one hour at the Northstar Production Facility between April 27 and May 1 during a test to switch from Prudhoe Bay fuel gas to Northstar reservoir gas. Northstar includes five natural gas-fired combustion turbines. The turbines consist of three identical Solar Mars 90 turbines used to generate electricity for the facility and two identical GE LM2500 turbines used for gas compression duty. Currently the turbines operate on gas supplied by the Prudhoe Bay Central Gas Facility (CGF). The original intent when the Northstar facility was constructed was for the Northstar facility to switch to on-site produced natural gas, once the Northstar production wells were producing a sufficient quality and volume of natural gas. At this time Northstar is planning to make the switch to Northstar reservoir gas. BPXA intends to conduct a test utilizing on-site gas in one or more of the combustion turbines from approximately April 27 to May 1, 2014. Assuming that this test demonstrates that the natural gas satisfies operational and emission performance requirements, BPXA intends to operate the five turbines using Northstar reservoir gas, CGF gas, or a combination of the two, depending upon availability of and performance using the respective gases. On April 27, BPXA anticipates roughly an hour of flaring due to a normal operational shutdown (BESD testing). For a short period during startup for the testing (approximately 6 hours), we anticipate flaring up to 10 MMscfd to get the Northstar reservoir gas conditioned, which is necessary for Solar Power Turbine and HP Compressor startup. Once the HP Compressor is online, approximately 6 MMscfd of LP gas will continue to flare for up to 36 hours while we confirm the fuel gas is not condensing a concerning amount of liquids in the LP Compressor sea] system. Once the LP Compressor is started, flaring will return to normal operational levels (pilot/purge). If you have any questions regarding this test, please feel free to contact me at 564-4838 or alison.cookeabp.com. Regards, Alison Alison D. Cooke 907-564-4838 tel. 907-440-8167 cell 907-564-5020 fax. cookead(ftp.com 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 5. Month/Year of Disposition BP May -2014 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 16,358,201 Northstar 590100 91.30% Northstar 590150 8.70/a 8. Flared or vented 1 hour or less 333 100.00% 9. Flared or vented more than 1 hour (see instr.) 4,374 10. Pilot and Purge 5,456 11. Assist Gas 0 12. Fuel gas used in lease operations. 505,360 13. Other (see instructions) 0 Oficial Use Only Authorization >1 hr: Safety 7 // 33 MCF 14. TOTAL VOLUME (ITEMS 6-13) 16,873,724 Lease Use MCF 15, NGL Gas Equivalent Conservation MCF 16. Purchased gas 5,295 Waste: MCF 17. Transferred from: 446 I `�- r G —,7Date 18. Transferred to: (Express as a negative #) I 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 5,295. I hereby codify that the foregoing is true and correct to the best of my knowledge. Signature / Title Manager, Production Taxes and oyal 'es 1Alaska Printed I J 11 J/J+ Name Diane Colley Phone (907)564-5775 Date l4 Ill r I Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60o F. Authority 20 C25.2 . V,L,F &&126114 Northstar Gas Flaring Incident Report 5/1/2014 - 5/31/2014 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Planned Less Than 1 Hour Group Total 0 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour 333 Group Total 333 Unplanned Greater Than 1 Hour PLC malufunction led to 5/12/2014 19:45 5/13/2014 4:35 530 4,374 unplanned plant BESD Group Total 4,374 Report Total 4,707 Remediation Taken Event Type Addressed PLC issues and brough plant back online Plant Startup Flare LP, HP1 NSTR FlarelncidentDetails 05-2014 FINAL.xIs 6/10/2014 9:27 AM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION t. Facility Number 0290000025 2. Facility Name N1 3. Field Northstar 4. Operator S. Month/Year of Disposition I BP I Jun -2014 Disposition Volume MCF 26. 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 15,029,034 Northstar 590100 91.35% Northstar 590150 8.65% 8. Flared or vented 1 hour or less 456 100.00% 9. Flared or vented more than 1 hour (sea instr.) 0 10. Pilot and Purge 5,280 11. Assist Gas 0 12. Fuel gas used in lease operations. 478,558 13. Other (see instructions) 0 Official Use Only Authorization >t hr. Safety MCF 14. TOTAL VOLUME (ITEMS 6-13) 15,513,328 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 4,917 Waste: 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 4,917. I hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected to Signature /1 #'Ul Title Manager, Production Taxes an Royalties Alaska pressure of 14.65 psia and to a Printed WI ^f D �/ I temperature of 600 F. Authority 20 Name Diane Colle Phone (907)564-5775 Date / T AAC25.235. Northstar Gas Flaring Incident Report 6/1/2014 - 6/30/2014 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 29 Group Total 29 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour 427 Group Total 427 Unplanned Greater Than 1 Hour Group Total 0 Report Total 456 NSTR FlarelncidentDetails 06-2014 FINAL.As 7/8/2014 4:28 PM 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 5. Month/Year of Disposition I BP I Jul -2014 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 15,149,760 Northstar 590100 90.81% Northstar 590150 9.19% 8. Flared or vented i hour or less 2,974 100.00% 9. Flared or vented more than 1 hour (see instr.) 0 10. Pilot and Purge 5,456 11, Assist Gas 0 12. Fuel gas used in lease operations. 495,170 13. Other (see instructions) 0 Official Use Only Authorization >i hr: Safety MCF 14. TOTAL VOLUME (ITEMS 6.13) 15,653,360 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 5,309 Waste: 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 5,309. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. n /��1^,r Note: All volumes must be corrected to Signature / ) /'/ /,�7j//� Title Manager, Production Taxes and oy Ities Alaska pressure of 14.65 psia and to a Printed 444��' lhi�Xf�" / temperature of 60o F. Authority 20 Name Diane ColleyPhone (907)564-5775 Date / AAC25.235. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRnni Trim ii nIQ0f%Q1Tlnwl 1. ---- ---- Facility Number 2. Facility Name 3. — �� .+ vw v1J1 vJ1I I%JIV Field 0290000025 N1 4. Operator 5. Month/Year of Disposition Disposition Northstar Volume MCF BP Au -2014 20. For Production from multiple pools, list contribution of each pool as a percent of Total 6, Sold 0 Volume. Pool Name Pool Code Percent 7. Reinjected 15,128,781 Northstar 590100 91.80% Northstar 590150 8.20% 8. Flared or vented 1 hour or less 289 100.00% 9. Flared or vented more than 1 hour (see instr.) 188 10. Pilot and Purge 5,456 11. Assist Gas 0 12. Fuel gas used in lease operations. 484,499 13. Other (see instructions) U Official Use Only Authorization>1 hr MCF 14. TOTAL VOLUME (ITEMS6.13)15,619,213 Safely 15, NGL Gas Equivalent Lease Use MCF 16. Purchased gas Conservation MCF 5,137 Waste: MCF 17. Transferred from: / 18. Transferred to: (Express as a negative #) Commissioner Date 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 used as follows (all in mscf): fuel gas 5,137. was I hemby certify that the foregoing is true and correct to the best of my knowledge. Signature Note: All volumes must corrected to Title Manager, Production Taxes and Royalties Alaska pressure of 14.65 psia and to a is Printed Name Diane Colley Phone (907)564-5775 temperature of 60o F. Authority 20 Date y (1 AAC25.235. VL- /o/7/if Northstar Gas Flaring Incident Report 8/1/2014 - 8/31/2014 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 289 Group Total 289 Planned Greater Than 1 Hour HPB Planned Shutdown for 8/29/2014 2:25 8/29/2014 3:33 68 188 blade replacement None Commissioning HP1 Group Total 188 Unplanned Less Than 1 Hour Group Total 0 Unplanned Greater Than 1 Hour Group Total 0 Report Total 477 NSTR FlarelncidentDetails 08-2014 FINAL.xls 9/9/2014 3:31 PM Hunt, Jennifer L (DOA) From: AK, HSSEE Env Adv North [AKHSSEEEnvAdvNorth@bp.com] Sent: Wednesday, September 17, 2014 4:18 AM To: Roby, David S (DOA); Ferguson, Victoria L (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, HSSEE Env TL (North Slope); Fiedler, Anne M; Cooke, Alison D; AK, HSSEE Reg Env Data Coordinator North; AK, OPS Nstar Lead Tech Subject: Northstar Flaring Summary August 29 -September 15, 2014 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of one planned flaring event of greater than one hour which occurred at the Northstar Production Facility as a result of facility commissioning. Summary of planned flaring event: 29 -August -14 02:25 (68 minutes, 188 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). Thank you, Rich Vicente BPXA Environmental Advisor North Phone(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 1. Facility Number2. 0290000025 Facility Name N1 3. Field Northstar 4. Operator 5. Month/Year of Disposition I BP I Se 2014 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 PoolCode Percent 7. Reinjected 15,523,765 Northstar 590100 91.29% Northstar 590150 8.71% 8. Flared or vented 1 hour or less 579 100.00% 9. Flared or vented more than 1 hour (see instr.) 242 10. Pilot and Purge 5,280 11, Assist Gas D 12. Fuel gas used in lease operations. 482,832 13. Other (see instructions) 0 Official Use Only Authorization >1 hr: Safety � MCF 14. TOTAL VOLUME (ITEMS 6.13) 16,012,698 Lease Use MCF 15. NGL Gas Equivalent Conservation MCF 16. Purchased gas 5,014 Waste: MCF 17. Transferred from: r_!J �I —/5 —1 Commissioner Data 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 5,014. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected to Signature Don W1 Title Manager, Production Taxes and R yal'es Alaska pressure of 14.65 psia and to a Printed (/./- //-) / � temperature of 60o F. Authority 20 Name Diane Colley Phone (907)564-5775 Date (.� '1 AAC25.235. L Northstar Gas Flaring Incident Report 9/1/2014 - 9/30/2014 Start Date / Time End Date/ Time Minutes MCF Incident Cause / Description Remediation Taken Planned Less Than 1 Hour 93 Group Total 93 Planned Greater Than 1 Hour Group Total 0 Unplanned Less Than 1 Hour 486 Group Total 486 Unplanned Greater Than 1 Hour 9/20/2014 9:46 9/20/2014 11:08 82 242 HP -A Processor failed Group Total 242 Report Total 821 Replaced processor and started HP -A Event Type Flare Upset HP1 NSTR Flare IncidentDetaiIs 09-2014 FINAL.As 10/6/2014 2:41 PM Hunt, Jennifer L (DOA From: Vicente, Richard (WESTON SOLUTIONS) [Richard.Vicente@bp.com] Sent: Tuesday, October 14, 2014 5:49 PM To: Roby, David S (DOA); Loepp, Victoria T (DOA); Hunt, Jennifer L (DOA) Cc: AK, OPS Nstar O&M TL; AK, HSSEE Env TL (North Slope); Fiedler, Anne M; Cooke, Alison D; AK, HSSEE Reg Env Data Coordinator North; AK, OPS Nstar Lead Tech Subject: Northstar Flaring Summary September 20, 2014 - October 13, 2014 To: Dave Roby, AOGCC Victoria Ferguson, AOGCC Jennifer Hunt, AOGCC BPXA is providing courtesy notification of planned and unplanned flaring events of greater than one hour which occurred at the Northstar Production Facility as a result of a processor failure on September 20, 2014 and a PLC failure on October 8, 2014. Summary of planned flaring events: 9 -October -14 08:39 (300 minutes, 365 MCF) 9 -October -14 10:15 (183 minutes, 271 MCF) Summary of unplanned flaring events: 20 -September -14 09:46 (82 minutes, 242 MCF) 9 -October -14 13:42 (364 minutes, 613 MCF) 9 -October -14 16:25 (156 minutes, 2,309 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). Thank you, Rich Vicente BPXA Environmental Advisor North Phone(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 1. Facility Number2. 0290000025 Facility Name N1 3. Field Northstar 4. Operator 5. MonthNear of Disposition BP Oct -2014 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 PoolCode Percent 7. Reinjected 15,012,533 Northstar 590100 90.09% Northstar 590150 9.91% 8. Flared or vented 1 hour or less 4,048 100.00% 9. Flared or vented more than 1 hour (see instr.) 14,895 10. Pilot and Purge 5,456 11. Assist Gas 0 12. Fuel gas used in lease operations. 475,667 13. Other (see instructions) U Official Use Only Authorization >1 hr: Safety J MCF 14. TOTAL VOLUME (ITEMS 6-13) 15,512,599 Lease Use MCF 15, NGL Gas Equivalent Conservation MCF 16. Purchased gas 5,969 Waste: MCF 17. Transferred from: 70 ommis mer 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 5,969. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Note: All volumes must be corrected to Signature/%N)A Title Manager, Production Taxes and oy Ities Alaska pressure of 14.65 psia and to a Printed fiVf IK temperature of 60o F. Authority 20 Name Diane ColleyPhone (907)564-5775 Date /' 7�J / AAC25.235. 1,7-1- 12/11114 Northstar Gas Flaring Incident Report 10/1/2014 - 10/31/2014 Start Date / Time End Date / Time Minutes MCF Incident Cause / Description Remediation Taken Event Type Flare Planned Less Than 1 Hour 523 Group Total 523 Planned Greater Than 1 Hour Restarting of LP, immediate 10/9/2014 8:39 10/9/2014 13:39 300 7,131 shutdown Adjusted wells accordingly LP Purge Gas LP, HP1 Adjusted well set to Equipment 10/9/2014 12:28 10/9/2014 14:30 123 197 Took down HPA for water wash mininmize flaring Outage HP1 Group Total 7,328 Unplanned Less Than 1 Hour 3,525 Group Total 3,525 Unplanned Greater Than 1 Hour 10/9/2014 13:42 10/9/2014 19:46 364 613 Restarting HP -A Adjusted wells accordingly HPA Purge Gas LP 10/9/2014 16:25 10/9/2014 19:01 156 2,309 Restarting LP Adjusted wells accordingly LP Purge Gas HP1 HP -B: lost 5th stage seal. Took evasive action and Equipment 10/14/2014 6:14 10/14/2014 9:27 192 1,577 resulting in shutdown began cutting production Outage HP1 Lost LP Compressor due to B Adjusted well set to minimize Equipment 10/18/2014 1:03 10/18/2014 14:23 911 2,407 Solar failure flaring Outage LP Lost LP Compressor due to B Adjusted well set to minimize Equipment 10/18/2014 16:56 10/18/2014 19:22 147 308 Solar failure flaring Outage HP1 Lost LP Compressor due to B Adjusted well set to minimize Equipment 10/18/2014 20:21 10/18/2014 23:40 199 353 Solar failure flaring Outage HP1 Group Total 7,567 Report Total 18,943 NSTR FlarelncidentDetails 10-2014 FINAL.xls 11/6/2014 2:27 PM STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION 11e1. a. Operator 5. Month/Year of Disposition 0290000025 Northstar Northstar HILCORP ALASKA LLC I November 2014 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of 6. Sold 0 7. Reinjected 13,747,394 8. Flared or vented 1 hour or less 949 9. Flared or vented more than 1 hour (see Instr.) 397 10. Pilot and Purge 5,309 11. Assist Gas 0 12. Fuel gas used in lease operations 448,920 13. Other (see Instructions) 0 14. TOTAL VOLUME (ITEMS 6-13) 14,202,969 15. NGL Gas Equivalent 0 16. Purchased gas: 850 17. Transferred from: (Off -lease Gas) 0 18. Transferred to: 0 19. Remarks: Gas purchased from BPXA PBU for fuel at Caribou Crossing 850 correct to the best of use 397 - l _C7_� Note: Aff volumes must be corrector to pressure of 14.65 psis and to a temperature of 600 F. Authority 20 VTr— OR FLARING EVENTS GREATER THAN 1 HOUR a 11/01/2014 124250 0290000025 11/2/2014 9:11:OOAM 10:12AOAM 11/2/2014 N 161.0 ing Excess de to unscheuled shutdownrof HPUA caused by loose Excess necessary until operations could secure the accoustics card. card into place. 11/01/2014 124250 0290000025 11/14/2014 2:10:00 AM 3:27:00 AM 11/14/2014 N 236.0 Excess due to shutdowln aring of HP -A due to high aldaI Othe unit could benecessary FS andtil vibration of the 5th stage compressor, blown down. JAN 2 1 2015 STATE OF ALASKA A" OGCV ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 0290000025 2. Facility Name Northstar 3. Field 4. Operator Northstar I HILCORP ALASKA LLC 5. MonlhlYear of Disposition December 2014 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 18,147,393 NORTHSTAR, NORTHSTAR OIL 590100 90.23% NORTHSTAR, KUPARUK C UNOEF OIL 590150 9.77% 8. Flared or vented 1 hour or less 241 9. Flared or vented more than 1 hour (see instr.) 5,445 10. Pilot and Purge 5,486 11. Assist Gas 0 12. Fuel gas used in lease operations 546,054 Authorization >1 hr: Safety MCF MCF Lease Use MCF Conservation 13. Other (see instructions) 0 14. TOTAL VOLUME (ITEMS 6.13) 18,704,619 15. NGL Gas Equivalent 0 16. Purchased gas: 922 Waste: MCF 17. Transferred from: (ON -lease Gas) 0 Commissioner Date 18. Transferred to: 0 19. Remarks: Gas purchased from BPXA PBU for fuel at Caribou Crossing 922 is true and correct to the best of my Title Phone Ne: All volumes must be corrected pressure of 14.65 psis and to a temperature of 60o F. Authority 20 RECEIVED 2015 OR FLARING EVENTS GREATER THAN 1 HOUR Actio T rt R tDate O No Facili No Date Flared StartTime EndingTime End Date Planned MCF Description of Flaring Event V Excess flaring due to flaring off of Excess flaring necessary until 12/01/2014 124250 0290000025 12/27/2014 12:19:00 PM 1:19:00 PM 12/27/2014 P 271.9 Test Separator in effort to stimulate stimulate effort was complete. NS -33. Excess flaring due to flaring off of Excess flaring necessary until 12/01/2014 124250 0290000025 12/27/2014 1:21:00 PM 6:26:00 PM 12/27/2014 P 1230.6 Test Separator in effort to stimulate stimulate effort was complete. NS -33. Excess flaring due to flaring off of Excess flaring necessary until 12/01/2014 124250 0290000025 12/30/2014 6:15:00 AM 3:25:00 PM 12/30/2014 P 2563.7 Test Separator in effort to stimulate stimulate effort was complete. NS -33. Excess flaring due to flaring off of Excess flaring necessary until 12/01/2014 124250 0290000025 12/31/2014 8:01:00 AM 11:21:00 AM 12/31/2014 P 762.3 Test Separator in effort to stimulate stimulate effort was complete. NS -33. Excess flaring due to flaring off of Excess flaring necessary until 12/01/2014 124250 0290000025 12/31/2014 11:22:OOAM 2:19:00 PM 12/31/2014 P 616.6 Test Separator in effort to stimulate stimulate effort was complete. NS -33.