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Home My WebLink AboutNorthStar - Hilcorp Alaska, LLC2. Facility NameNorthstarPercent72.86%27.14%MCF19. Remarks:Authorized Name and Digital Signature with date:STATE OF ALASKAALASKA OIL AND GAS CONSERVATION COMMISSIONFACILITY REPORT OF PRODUCED GAS DISPOSITION1. Facility Number 3. Field 4. Operator 5.Month/Year of Disposition0290000025 Northstar HILCORP ALASKA LLC January 2025Disposition Volume MCF20. For production from multiple pools, list contribution of each pool as a percent ofTotal Volume.5901508. Flared or vented 1 hour or less7. Reinjected18,263,367NORTHSTAR, NORTHSTAR OIL590100NORTHSTAR, NORTHSTAR-KUPARUK OIL1,9346. Sold0Pool Name Pool Code11. Assist Gas012. Fuel gas used in lease operations10. Pilot and Purge 5,4869. Flared or vented more than 1 hour (see instr.) 3,424545,00513. Other (see instructions) 0Official Use OnlyAuthorization >1 hr:SafetyMCF14. TOTAL VOLUME (ITEMS 6-13)18,819,216124Lease UseMCF15. NGL Gas Equivalent 97,536ConservationMCF16. Purchased gas:Title: Production Analyst SrWaste17. Transferred from: (Off-lease Gas) 0Reviewed by Commissioner:18. Transferred to:0Comm. Comm.I hereby certify that the foregoing is true and correct to the best of my knowledge.Revision?Date of Revision:Contact Phone: 346-237-2399Note: All volumes must be corrected topressure of 14.65 psia and to atemperature of 60° F. Authority 20 AAC25.235.Contact Email:diana.bowling@hilcorp.comForm 10-422 Revised 10/2021 20 AAC 25.235 Submit in PDF format to aogcc.reporting@alaska.govDigitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.02.22 20:04:51 -06'00'Diana Bowling (13407):&%*&:Jessie L. ChmielowskiDigitally signed by Jessie L. Chmielowski Date: 2025.08.05 11:18:32 -08'00' RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 1/1/2025 124250 290000025 1/20/2025 13:50 15:17 1/20/2025 U 179 Excess flaring due to shutting down HPA due to oil leak. Excess flaring necessary to make repairs. 1/1/2025 124250 290000025 1/20/2025 13:57 15:52 1/20/2025 U 2459 Excess flaring due to shutting down HPA due to oil leak. Excess flaring necessary to make repairs. 1/1/2025 124250 290000025 1/21/2025 7:10 8:20 1/21/2025 U 786 Excess flaring due to shutting down HPA due to oil leak. Excess flaring necessary to make repairs. 2. Facility NameNorthstarPercent73.14%26.86%MCF19. Remarks:Authorized Name and Digital Signature with date:Date of Revision:Contact Phone: 346-237-2399Note: All volumes must be corrected topressure of 14.65 psia and to atemperature of 60° F. Authority 20 AAC25.235.Contact Email:diana.bowling@hilcorp.comTitle: Production Analyst SrWaste17. Transferred from: (Off-lease Gas) 0Reviewed by Commissioner:18. Transferred to:0Comm. Comm.I hereby certify that the foregoing is true and correct to the best of my knowledge.Revision?Lease UseMCF15. NGL Gas Equivalent 91,852ConservationMCF16. Purchased gas:13. Other (see instructions) 0Official Use OnlyAuthorization >1 hr:SafetyMCF14. TOTAL VOLUME (ITEMS 6-13)17,760,6311131,314509,80911. Assist Gas012. Fuel gas used in lease operations10. Pilot and Purge 4,9559. Flared or vented more than 1 hour (see instr.)6. Sold0Pool Name Pool Code5901508. Flared or vented 1 hour or less7. Reinjected17,244,428NORTHSTAR, NORTHSTAR OIL590100NORTHSTAR, NORTHSTAR-KUPARUK OIL125STATE OF ALASKAALASKA OIL AND GAS CONSERVATION COMMISSIONFACILITY REPORT OF PRODUCED GAS DISPOSITION1. Facility Number3. Field 4.Operator 5.Month/Year of Disposition0290000025 Northstar HILCORP ALASKA LLC February 2025Disposition Volume MCF20. For production from multiple pools, list contribution of each pool as a percent ofTotal Volume.Form 10-422 Revised 10/2021 20 AAC 25.235 Submit in PDF format to aogcc.reporting@alaska.govDigitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.03.15 14:57:43 -05'00'Diana Bowling (13407):&%*&:Jessie L. ChmielowskiDigitally signed by Jessie L. Chmielowski Date: 2025.08.05 11:21:23 -08'00' RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 2/1/2025 124250 290000025 2/27/2025 5:48 9:27 2/27/2025 U 623 Excess flaring due to losing LP Compressor from frozen transmitter PSHH- 2056. Excess flaring necessary while compressor transmitter was fixed. 2/1/2025 124250 290000025 2/27/2025 5:50 9:32 2/27/2025 U 691 Excess flaring due to losing LP Compressor from frozen transmitter PSHH- 2056. Excess flaring necessary while compressor transmitter was fixed. 2. Facility NameNorthstarPercent73.51%26.49%MCF19. Remarks:Authorized Name and Digital Signature with date:Date of Revision:Contact Phone: 346-237-2399Note: All volumes must be corrected topressure of 14.65 psia and to atemperature of 60° F. Authority 20 AAC25.235.Contact Email:diana.bowling@hilcorp.comTitle: Production Analyst SrWaste17. Transferred from: (Off-lease Gas) 0Reviewed by Commissioner:18. Transferred to:0Comm. Comm.I hereby certify that the foregoing is true and correct to the best of my knowledge.Revision?Lease UseMCF15. NGL Gas Equivalent 95,841ConservationMCF16. Purchased gas:13. Other (see instructions) 0Official Use OnlyAuthorization >1 hr:SafetyMCF14. TOTAL VOLUME (ITEMS 6-13)19,068,46868220,271520,25211. Assist Gas012. Fuel gas used in lease operations10. Pilot and Purge 5,4869. Flared or vented more than 1 hour (see instr.)6. Sold0Pool Name Pool Code5901508. Flared or vented 1 hour or less7. Reinjected18,514,603NORTHSTAR, NORTHSTAR OIL590100NORTHSTAR, NORTHSTAR-KUPARUK OIL7,856STATE OF ALASKAALASKA OIL AND GAS CONSERVATION COMMISSIONFACILITY REPORT OF PRODUCED GAS DISPOSITION1. Facility Number 3. Field 4. Operator 5.Month/Year of Disposition0290000025 Northstar HILCORP ALASKA LLC March 2025DispositionVolume MCF20. For production from multiple pools, list contribution of each pool as a percent ofTotal Volume.Form 10-422 Revised 10/2021 20 AAC 25.235 Submit in PDF format to aogcc.reporting@alaska.govDigitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.04.14 18:12:39 -05'00'Diana Bowling (13407):&%*&:Jessie L. ChmielowskiDigitally signed by Jessie L. Chmielowski Date: 2025.08.05 11:25:15 -08'00' RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 3/1/2025 124250 290000025 3/7/2025 15:49 17:36 3/7/2025 U 7,901 Excess flaring due to facility shutdown for valve testing. Excess flaring necessary until after testing was completed. 3/1/2025 124250 290000025 3/14/2025 18:06 20:01 3/14/2025 U 7,379 Excess flaring due to plant shutdown. Excess flaring necessary until faulty hardware replaced and facility restarted. 3/1/2025 124250 290000025 3/14/2025 22:59 0:02 3/15/2025 U 4,821 Excess flaring due to plant shutdown. Excess flaring necessary until faulty hardware replaced and facility restarted. 3/1/2025 124250 290000025 3/14/2025 23:48 1:58 3/15/2025 U 170 Excess flaring due to plant shutdown. Excess flaring necessary until faulty hardware replaced and facility restarted. Digitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.05.13 19:58:21 -05'00'Diana Bowling (13407) RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 4/1/2025 124250 290000025 4/29/2025 12:25 14:00 4/29/2025 P 9,798 EXCESS FLARING DUE TO SHUT DOWN TO REPLACE A SEAL GAS RUPTURE DISC. EXCESS FLARING NECESSARY TO COMPLETE THE MAINTENANCE. 4/1/2025 124250 290000025 4/29/2025 12:25 14:05 4/29/2025 P 360 EXCESS FLARING DUE TO SHUT DOWN TO REPLACE A SEAL GAS RUPTURE DISC. EXCESS FLARING NECESSARY TO COMPLETE THE MAINTENANCE. 2. Facility Name Northstar Percent 73.40% 26.60% MCF 19. Remarks: Authorized Name and Digital Signature with date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 Northstar HILCORP ALASKA LLC April 2025 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. 590150 8. Flared or vented 1 hour or less 7. Reinjected 17,966,254 NORTHSTAR, NORTHSTAR OIL 590100 NORTHSTAR, NORTHSTAR-KUPARUK OIL 39 6. Sold 0 Pool Name Pool Code 11. Assist Gas 0 12. Fuel gas used in lease operations 10. Pilot and Purge 5,309 9. Flared or vented more than 1 hour (see instr.)10,158 523,556 13. Other (see instructions)0 Official Use Only Authorization >1 hr: Safety MCF 14. TOTAL VOLUME (ITEMS 6-13)18,505,316 121 Lease Use MCF 15. NGL Gas Equivalent 95,340 Conservation MCF 16. Purchased gas: Title: Production Analyst Sr Waste 17. Transferred from: (Off-lease Gas)0 Reviewed by Commissioner: 18. Transferred to:0 Comm.Comm. I hereby certify that the foregoing is true and correct to the best of my knowledge. Revision?Date of Revision: Contact Phone:346-237-2399 Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60° F. Authority 20 AAC 25.235.Contact Email:diana.bowling@hilcorp.com Form 10-422 Revised 10/2021 20 AAC 25.235 Submit in PDF format to aogcc.reporting@alaska.gov Digitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.06.12 13:29:02 -05'00'Diana Bowling (13407) RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 5/1/2025 124250 290000025 5/5/2025 12:00 13:34 5/5/2025 U 9,216 EXCESS FLARING DUE TO A A BAD CARD FOR CRUDE STABILIZER CAUSING A BLOW DOWN EMERGENCY SHUTDOWN. EXCESS FLARING NECESSARY TO RESTART THE PROCESS FACILITY. 5/1/2025 124250 290000025 5/5/2025 12:26 13:43 5/5/2025 U 379 EXCESS FLARING DUE TO A A BAD CARD FOR CRUDE STABILIZER CAUSING A BLOW DOWN EMERGENCY SHUTDOWN. EXCESS FLARING NECESSARY TO RESTART THE PROCESS FACILITY. 5/1/2025 124250 290000025 5/5/2025 14:04 16:19 5/5/2025 U 1,058 EXCESS FLARING DUE TO A A BAD CARD FOR CRUDE STABILIZER CAUSING A BLOW DOWN EMERGENCY SHUTDOWN. EXCESS FLARING NECESSARY TO RESTART THE PROCESS FACILITY. 5/1/2025 124250 290000025 5/5/2025 16:33 19:39 5/5/2025 U 1,825 EXCESS FLARING DUE TO A A BAD CARD FOR CRUDE STABILIZER CAUSING A BLOW DOWN EMERGENCY SHUTDOWN. EXCESS FLARING NECESSARY TO RESTART THE PROCESS FACILITY. 5/1/2025 124250 290000025 5/5/2025 17:04 22:48 5/5/2025 U 666 EXCESS FLARING DUE TO A A BAD CARD FOR CRUDE STABILIZER CAUSING A BLOW DOWN EMERGENCY SHUTDOWN. EXCESS FLARING NECESSARY TO RESTART THE PROCESS FACILITY. 5/1/2025 124250 290000025 5/5/2025 19:47 23:10 5/5/2025 U 1,935 EXCESS FLARING DUE TO A A BAD CARD FOR CRUDE STABILIZER CAUSING A BLOW DOWN EMERGENCY SHUTDOWN. EXCESS FLARING NECESSARY TO RESTART THE PROCESS FACILITY. 5/1/2025 124250 290000025 5/13/2025 15:34 16:57 5/13/2025 U 6,701 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/13/2025 18:08 19:14 5/13/2025 U 928 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/13/2025 19:09 20:09 5/13/2025 U 92 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/13/2025 20:19 21:28 5/13/2025 U 117 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/13/2025 20:29 22:05 5/13/2025 U 142 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/13/2025 22:22 3:46 5/14/2025 U 538 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/13/2025 22:35 0:03 5/14/2025 U 147 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. 5/1/2025 124250 290000025 5/14/2025 1:02 3:21 5/14/2025 U 281 EXCESS FLARING DUE TO PLANT BLOW DOWN EMERGENCY SHUTDOWN DUE TO POWER FAILURE TO 24V CIRCUIT. EXCESS FLARING NECESSARY TO START PLANT BACK UP AFTER REPLACING CABLE. Digitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.07.15 14:48:17 -05'00'Diana Bowling (13407) RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 6/1/2025 124250 290000025 6/26/2025 8:27 9:45 6/26/2025 P 614 EXCESS FLARING DUE TO DEPRESSURIZING TEST SEPARATOR TO UNLOAD NS-23. EXCESS FLARING NECESSARY TO COMPLETE THE WELL TEST. 6/1/2025 124250 290000025 6/26/2025 18:12 6:09 6/27/2025 U 2,945 EXCESS FLARING DUE TO ATTEMPTING TO FLOW NS-23. EXCESS FLARING OCCURRED UNTIL TEST WAS COMPLETED. 6/1/2025 124250 290000025 6/28/2025 14:39 22:20 6/28/2025 U 932 EXCESS FLARING DUE TO PLANT SHUTDOWN. EXCESS FLARING NECESSARY AS EQUIPMENT AND WELLS WERE BROUGHT BACK ONLINE. 6/1/2025 124250 290000025 6/28/2025 15:23 21:53 6/28/2025 U 1,062 EXCESS FLARING DUE TO PLANT SHUTDOWN. EXCESS FLARING NECESSARY AS EQUIPMENT AND WELLS WERE BROUGHT BACK ONLINE. Digitally signed by Diana Bowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.08.13 16:17:53 -05'00'Diana Bowling (13407) RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 7/1/2025 124250 290000025 7/18/2025 11:23 12:39 7/18/2025 U 5,956 EXCESS FLARING DUE TO FACILITY SHUT DOWN DUE TO FAULTY FIRE EYE. EXCESS FLARING NECESSARY FOR FACILITY TO RESTART. 7/1/2025 124250 290000025 7/18/2025 12:16 13:35 7/18/2025 U 830 EXCESS FLARING DUE TO FACILITY SHUT DOWN DUE TO FAULTY FIRE EYE. EXCESS FLARING NECESSARY FOR FACILITY TO RESTART. Digitally signed by DianaBowling (13407)DN: cn=Diana Bowling (13407)Date: 2025.09.12 15:59:57 -05'00'Diana Bowling(13407) RptDate OpNo FacilityNo Date Flared Start Time Ending Time End Date Planned MCF Description of Flaring Event Action Taken to Minimize Volume 8/1/2025 124250 0290000025 8/3/2025 11:55 14:14 8/3/2025 U 115 S/D LP COMPRESSOR DUE TO HIGH TEMPS WAIT FOR TEMPS TO DROP 8/1/2025 124250 0290000025 8/3/2025 14:25 18:29 8/3/2025 U 169 S/D LP COMPRESSOR DUE TO HIGH TEMPS WAIT FOR TEMPS TO DROP 8/1/2025 124250 0290000025 8/3/2025 20:32 7:41 8/4/2025 U 764 S/D LP COMPRESSOR DUE TO HIGH TEMPS MINIMIZE FLARING BY REDUCING NGL THROUGHPUT 8/1/2025 124250 0290000025 8/4/2025 4:03 7:36 8/4/2025 U 343 NONE MINIMIZE FLARING BY REDUCING NGL THROUGHPUT 8/1/2025 124250 0290000025 8/14/2025 13:43 14:57 8/14/2025 P 5,028 WATER WASH & RESTART FOR HP- A/B. SHUTDOWN & RESTART EACH COMPRESSOR. 8/1/2025 124250 0290000025 8/14/2025 13:53 15:02 8/14/2025 P 167 WATER WASH & RESTART FOR HP- A/B. SHUTDOWN & RESTART EACH COMPRESSOR. 8/1/2025 124250 0290000025 8/15/2025 2:11 6:15 8/15/2025 P 2,401 ANNUAL FGBESD TEST & START OF TAR.NONE 8/1/2025 124250 0290000025 8/15/2025 2:12 6:15 8/15/2025 P 493 ANNUAL FGBESD TEST & START OF TAR.NONE 8/1/2025 124250 0290000025 8/19/2025 9:24 10:37 8/19/2025 P 1,879 STARTUP FACILITY AFTER TAR. PURGE & START EQUIPMENT. 8/1/2025 124250 0290000025 8/19/2025 10:37 13:19 8/19/2025 P 8,853 STARTUP FACILITY AFTER TAR. PURGE & START EQUIPMENT. 8/1/2025 124250 0290000025 8/19/2025 17:50 19:36 8/19/2025 P 169 STARTUP FACILITY AFTER TAR. PURGE & START EQUIPMENT. 8/1/2025 124250 0290000025 8/19/2025 19:46 23:10 8/19/2025 P 307 STARTUP FACILITY AFTER TAR. PURGE & START EQUIPMENT. 8/1/2025 124250 0290000025 8/19/2025 20:04 8:48 8/20/2025 U 993 STARTUP FACILITY AFTER TAR. PURGE & START EQUIPMENT. 8/1/2025 124250 0290000025 8/20/2025 0:13 8:30 8/20/2025 U 792 STARTUP FACILITY AFTER TAR. PURGE & START EQUIPMENT. 8/1/2025 124250 0290000025 8/21/2025 9:06 14:20 8/21/2025 U 1,705 SCHEDULED MAINTENANCE HPA STARTUP AND MAPPING NO RESPONSE NEEDED NORMAL OPERATIONS 8/1/2025 124250 0290000025 8/21/2025 14:30 19:34 8/21/2025 U 1,455 SCHEDULED MAINTENANCE HPA START UP AND MAPPING NO RESPONSE NEEDED NORMAL OPERATIONS 8/1/2025 124250 0290000025 8/22/2025 10:07 11:18 8/22/2025 U 350 LOST ENTIRE PLANT PURGE & START EQUIPMENT 8/1/2025 124250 0290000025 8/22/2025 10:13 12:04 8/22/2025 U 9,991 LOST ENTIRE PLANT PURGE & START EQUIPMENT 8/1/2025 124250 0290000025 8/22/2025 12:22 14:08 8/22/2025 U 10,799 LOST ENTIRE PLANT PURGE & START EQUIPMENT 8/1/2025 124250 0290000025 8/22/2025 12:37 14:25 8/22/2025 U 676 LOST ENTIRE PLANT PURGE & START EQUIPMENT 8/1/2025 124250 0290000025 8/24/2025 1:05 2:18 8/24/2025 U 124 HP-A AND LP COMPRESSORS SHUTDOWN.RESTART COMPRESSORS. 2. Facility Name Northstar Percent 71.29% 28.71% MCF 19. Remarks: Authorized Name and Digital Signature with date: Date of Revision: Contact Phone:346-237-2399 Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60° F. Authority 20 AAC 25.235.Contact Email:diana.bowling@hilcorp.com Title: Production Analyst Sr Waste 17. Transferred from: (Off-lease Gas)0 Reviewed by Commissioner: 18. Transferred to:0 Comm.Comm. I hereby certify that the foregoing is true and correct to the best of my knowledge. Revision? Lease Use MCF 15. NGL Gas Equivalent 66,639 Conservation MCF 16. Purchased gas: 13. Other (see instructions)0 Official Use Only Authorization >1 hr: Safety MCF 14. TOTAL VOLUME (ITEMS 6-13)11,556,970 121 0 321,815 11. Assist Gas 0 12. Fuel gas used in lease operations 10. Pilot and Purge 5,309 9. Flared or vented more than 1 hour (see instr.) 6. Sold 0 Pool Name Pool Code 590150 8. Flared or vented 1 hour or less 7. Reinjected 11,224,084 NORTHSTAR, NORTHSTAR OIL 590100 NORTHSTAR, NORTHSTAR-KUPARUK OIL 5,762 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 Northstar HILCORP ALASKA LLC September 2025 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. Form 10-422 Revised 10/2021 20 AAC 25.235 Submit in PDF format to aogcc.reporting@alaska.gov 2. Facility Name Northstar Percent 68.99% 31.01% MCF 19. Remarks: Authorized Name and Digital Signature with date: Date of Revision: Contact Phone:346-237-2399 Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60° F. Authority 20 AAC 25.235.Contact Email:diana.bowling@hilcorp.com Title: Production Analyst Sr Waste 17. Transferred from: (Off-lease Gas)0 Reviewed by Commissioner: 18. Transferred to:0 Comm.Comm. I hereby certify that the foregoing is true and correct to the best of my knowledge. Revision? Lease Use MCF 15. NGL Gas Equivalent 93,637 Conservation MCF 16. Purchased gas: 13. Other (see instructions)0 Official Use Only Authorization >1 hr: Safety MCF 14. TOTAL VOLUME (ITEMS 6-13)17,768,145 125 0 449,603 11. Assist Gas 0 12. Fuel gas used in lease operations 10. Pilot and Purge 5,486 9. Flared or vented more than 1 hour (see instr.) 6. Sold 0 Pool Name Pool Code 590150 8. Flared or vented 1 hour or less 7. Reinjected 17,312,293 NORTHSTAR, NORTHSTAR OIL 590100 NORTHSTAR, NORTHSTAR-KUPARUK OIL 764 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION 1. Facility Number 3. Field 4. Operator 5. Month/Year of Disposition 0290000025 Northstar HILCORP ALASKA LLC October 2025 Disposition Volume MCF 20. For production from multiple pools, list contribution of each pool as a percent of Total Volume. Form 10-422 Revised 10/2021 20 AAC 25.235 Submit in PDF format to aogcc.reporting@alaska.gov