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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Key Operating Company | Louisiana | 16,584 BBLs | 14,806 MCF | Jan 1995 - Jan 2025 |
| KFG Petroleum Corporation | Mississippi | 977 BBLs | 0 MCF | Dec 1976 - Apr 2026 |
| KGH Operating Company | Utah | 567 BBLs | 17,775 MCF | Sep 2016 - May 2026 |
| Kinder Morgan Co2 Co LP | Colorado | 129 BBLs | 23,025,134 MCF | Jan 1999 - May 2026 |
| Kirby Oil Company | Louisiana | 4,097 BBLs | 0 MCF | Jan 1981 - Dec 2024 |
| Kissack Resources. LLC | Wyoming | 1,202 BBLs | 0 MCF | Oct 2022 - Jun 2026 |
| Knighton Oil Company, Inc. | Kansas | 6,475 BBLs | 1,226 MCF | Jan 1980 - Mar 2026 |
| Koda GNB, LLC | Utah | 22,869 BBLs | 4,675,981 MCF | Nov 2025 - May 2026 |
| Koda Resources Operating, LLC | North Dakota | 322,294 BBLs | 438,120 MCF | Sep 2019 - May 2026 |
| Koda Uinta, LLC | Utah | 115,401 BBLs | 7,971,770 MCF | Nov 2025 - May 2026 |
| Koron Investments, Inc. | Kansas | 1,156 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Kraft Oil Company LLC | Kansas | 947 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Kraken Operating, LLC | Montana | 863,679 BBLs | 1,299,772 MCF | Sep 2013 - May 2026 |
| Kraken Operating, LLC | North Dakota | 819,849 BBLs | 2,175,699 MCF | Sep 2016 - May 2026 |
| Krier, Kirby Oil, Inc. | Kansas | 2,101 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| KT Resources LLC | Colorado | 518 BBLs | 84,352 MCF | Jan 1999 - May 2026 |
| L & A Energy LP | Kansas | 994 BBLs | 0 MCF | Jan 2020 - Mar 2026 |
| La Delta Farms Oil Company LLC | Louisiana | 1,377 BBLs | 2,299 MCF | Mar 2016 - Dec 2024 |
| Lachenmayr Oil LLC | Kansas | 3,898 BBLs | 812 MCF | Jan 1980 - Mar 2026 |
| Lafayette Oilfield Contractors, Inc. | Louisiana | 8,311 BBLs | 0 MCF | Nov 2020 - Dec 2024 |
| Lambda Energy Resources LLC | Michigan | 37,704 BBLs | 367,042 MCF | May 2014 - May 2026 |
| Land And Natural Resource Development, Inc. | Alabama | 1,773 BBLs | 33,613 MCF | Jul 1977 - May 2026 |
| Landmark Resources, Inc. | Kansas | 10,704 BBLs | 4,266 MCF | Jan 1980 - Mar 2026 |
| Lario Oil & Gas Company | Kansas | 35,109 BBLs | 24,257 MCF | Jan 1980 - Mar 2026 |
| Lawco Holdings, LLC | Kansas | 1,425 BBLs | 0 MCF | Aug 2014 - Mar 2026 |
| Layline Oil And Gas LLC | Michigan | 6,825 BBLs | 3,423 MCF | Jan 2017 - May 2026 |
| Laymon Oil II, LLC | Kansas | 6,420 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Lease Management Inc | Michigan | 4,537 BBLs | 0 MCF | Jan 1982 - May 2026 |
| Lebsack Oil Production Inc. | Kansas | 5,000 BBLs | 943 MCF | Jan 1980 - Mar 2026 |
| Lewis Operating Company | Louisiana | 1,466 BBLs | 120 MCF | Oct 1988 - Dec 2024 |
| Liberty Operating Company, LLC | Mississippi | 1,956 BBLs | 0 MCF | Dec 1976 - May 2026 |
| Liberty Resources Management Company, LLC | North Dakota | 2,371 BBLs | 1,187 MCF | Jun 2014 - May 2026 |
| Lime Rock Resources III-A, L.P. | North Dakota | 232,238 BBLs | 334,943 MCF | Mar 2015 - May 2026 |
| Lime Rock Resources V-A, L.P. | North Dakota | 42,768 BBLs | 500,599 MCF | Jul 2022 - May 2026 |
| Little Chief Energy Corporation | Kansas | 1,329 BBLs | 0 MCF | Jan 2010 - Mar 2026 |
| Lobo Operating, Inc. | Louisiana | 2,430 BBLs | 1,308 MCF | Mar 1995 - Dec 2024 |
| Lobo Production, Inc | Kansas | 0 BBLs | 26,603 MCF | Jan 1980 - Mar 2026 |
| Loeb LLC* Herman L | Colorado | 1,334 BBLs | 0 MCF | Jan 1999 - Jun 2026 |
| Logos Operating LLC | Colorado | 0 BBLs | 269,426 MCF | Jan 1999 - May 2026 |
| Logos Operating, LLC | New Mexico | 15,935 BBLs | 7,435,463 MCF | Jul 2012 - May 2026 |
| Lone Wolf Oil & Gas Co., LLC | Kansas | 966 BBLs | 0 MCF | Jan 2010 - Mar 2026 |
| Lonestar Oil Co | Kansas | 1,489 BBLs | 0 MCF | Jan 1980 - Mar 2026 |
| Lonewolf Operating, LLC | Montana | 1,947 BBLs | 9,540 MCF | Aug 2018 - Apr 2026 |
| Longfellow Energy, LP | New Mexico | 148,404 BBLs | 605,378 MCF | Jul 2017 - May 2026 |
| Longs Peak Resources LLC | Wyoming | 14,874 BBLs | 15,794 MCF | Feb 2016 - Jun 2026 |
| Louisiana Jordan Oil Company, Inc. | Louisiana | 1,207 BBLs | 0 MCF | Jan 2013 - Dec 2024 |
| Luff Exploration Company | North Dakota | 9,368 BBLs | 7,203 MCF | Dec 1996 - May 2026 |
| Lynx Operating Co., Inc. | New Mexico | 2,301 BBLs | 2,171 MCF | Jan 1999 - Jun 2026 |
| M & D Oil And Gas, LLC | Kansas | 969 BBLs | 0 MCF | Jan 2020 - Mar 2026 |
| M & G DRLG Co Inc | New Mexico | 158 BBLs | 67,189 MCF | May 1995 - May 2026 |