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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| 1876 Resources LLC | Colorado | 15,799 BBLs | 225,609 MCF | Jun 2016 - Dec 2025 |
| 1876 Resources LLC | Wyoming | 274,588 BBLs | 483,973 MCF | Nov 2021 - Dec 2025 |
| 3R Operating, LLC | New Mexico | 298,534 BBLs | 1,175,988 MCF | Jul 2023 - Dec 2025 |
| 442 Operating La, LLC | Louisiana | 3,868 BBLs | 15,416 MCF | Aug 2023 - Dec 2024 |
| A&S Mineral Development Company, LLC | Montana | 4,805 BBLs | 710 MCF | Mar 2021 - Dec 2025 |
| A. B. Energy LLC | Montana | 296 BBLs | 57,103 MCF | Oct 2011 - Dec 2025 |
| Aas Oil Co., Inc. | Kansas | 1,439 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Abercrombie Energy, LLC | Kansas | 9,387 BBLs | 11,754 MCF | Jan 1980 - Sep 2025 |
| Abundance Energy Services LLC | Colorado | 0 BBLs | 536,462 MCF | Jan 1999 - Nov 2025 |
| Ace Energy, LLC | Mississippi | 2,699 BBLs | 6,686 MCF | Jun 1986 - Nov 2025 |
| Acierto Resources Company, LLC | Louisiana | 2,533 BBLs | 0 MCF | Feb 2017 - Dec 2024 |
| Acp Energy Corporation | North Dakota | 1,571 BBLs | 764 MCF | Oct 2025 - Dec 2025 |
| Ad Astra Resources LLC | New Mexico | 3,027 BBLs | 6,812 MCF | Aug 2024 - Dec 2025 |
| Adams H D LLC | Wyoming | 4,834 BBLs | 0 MCF | Jan 1986 - Jan 2026 |
| Addie, James & John Thornton | Louisiana | 3,064 BBLs | 0 MCF | Aug 1990 - Dec 2024 |
| Advanced Wireless Communications LLC | Colorado | 0 BBLs | 12,147 MCF | Apr 2006 - Jan 2026 |
| Aethon Energy Operating LLC | Wyoming | 6,606 BBLs | 802,383 MCF | Jun 2015 - Nov 2025 |
| Agricultural Energy Services | Kansas | 990 BBLs | 15,517 MCF | Jan 1980 - Sep 2025 |
| Agv Corp. | Kansas | 1,281 BBLs | 11,769 MCF | Jan 1980 - Sep 2025 |
| Aldine Oil And Gas, LP | Louisiana | 18,573 BBLs | 217,657 MCF | Apr 2023 - Jan 2025 |
| Allam Production, Inc. | Kansas | 1,456 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Allen Brothers | Louisiana | 5,201 BBLs | 0 MCF | Jan 1977 - Dec 2024 |
| Altavista Energy, Inc. | Kansas | 3,866 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| American Warrior, Inc. | Kansas | 60,987 BBLs | 38,123 MCF | Jan 1980 - Sep 2025 |
| Americo Energy Resources LLC | New Mexico | 2,599 BBLs | 756 MCF | Apr 2004 - Dec 2025 |
| Amplify Energy Operating LLC | Louisiana | 567 BBLs | 62,179 MCF | Jun 2017 - Dec 2024 |
| Amplify Energy Operating LLC | Wyoming | 80,449 BBLs | 4,677,444 MCF | Jun 2017 - Dec 2025 |
| Anadarko E&P Onshore LLC | Wyoming | 384,530 BBLs | 1,068,101 MCF | Aug 1992 - Dec 2025 |
| Anschutz Exploration Corp | Colorado | 22,643 BBLs | 108,648 MCF | Jan 1999 - Nov 2025 |
| Anschutz Exploration Corporation | Utah | 53,106 BBLs | 741,173 MCF | Apr 2018 - Dec 2025 |
| Anschutz Exploration Corporation | Wyoming | 1,244,354 BBLs | 4,493,651 MCF | Nov 1997 - Nov 2025 |
| Anstine & Musgrove Inc. | Kansas | 4,113 BBLs | 0 MCF | Jan 1980 - Sep 2025 |
| Apache Corporation | New Mexico | 80,483 BBLs | 133,518 MCF | Jan 1993 - Dec 2025 |
| Apollo Energies, Inc. | Kansas | 1,883 BBLs | 6,380 MCF | Jan 1980 - Sep 2025 |
| Apollo Energy Operating Company, LP | Louisiana | 4,242 BBLs | 7,431 MCF | Apr 2011 - Dec 2024 |
| Arb Energy Utah, LLC | Utah | 58 BBLs | 91,994 MCF | Aug 2019 - Dec 2025 |
| Arena Resources LLC | Wyoming | 19,408 BBLs | 20,157 MCF | Aug 2023 - Nov 2025 |
| Aria Operating LLC | Mississippi | 1,430 BBLs | 0 MCF | Jan 2023 - Nov 2025 |
| Armstrong Energy Corp | New Mexico | 24,899 BBLs | 61,665 MCF | Jan 1993 - Dec 2025 |
| Armstrong Operating, Inc. | Montana | 1,542 BBLs | 48 MCF | Feb 1995 - Dec 2025 |
| Armstrong Operating, Inc. | North Dakota | 3,996 BBLs | 2,026 MCF | Jun 1995 - Dec 2025 |
| Arp Operating, LLC | Kansas | 2,096 BBLs | 0 MCF | Jan 2010 - Sep 2025 |
| Arp Production Company, LLC | Alabama | 0 BBLs | 359,867 MCF | May 1989 - Dec 2025 |
| Atlas Operating LLC | Kansas | 1,777 BBLs | 10,706 MCF | Jan 1980 - Sep 2025 |
| Atx Energy Partners LLC | Wyoming | 3,436 BBLs | 3,575 MCF | Jan 2018 - Dec 2025 |
| Avant Operating II, LLC | New Mexico | 12,616 BBLs | 26,027 MCF | Aug 2025 - Dec 2025 |
| Avant Operating, LLC | New Mexico | 570,436 BBLs | 1,400,266 MCF | Jan 2022 - Dec 2025 |
| Axis Exploration LLC | Colorado | 21,488 BBLs | 83,246 MCF | Jan 1999 - Dec 2025 |
| Azariah Operating, LLC | New Mexico | 1,010 BBLs | 2,640 MCF | Sep 2025 - Dec 2025 |
| Aztec Oil Operating LLC | Kansas | 6,252 BBLs | 297 MCF | Jan 2010 - Sep 2025 |