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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Kaiser Francis Oil Co | Wyoming | 1,221 BBLs | 57,864 MCF | Jan 1983 - Jul 2026 |
| Kaiser-Francis Oil Co | New Mexico | 956,240 BBLs | 5,412,846 MCF | Jan 1993 - Jul 2026 |
| Kansas Crude Investments LLC | Kansas | 1,279 BBLs | 0 MCF | Jan 2010 - May 2026 |
| Kansas Energy Company, L.L.C. | Kansas | 1,017 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Kansas Natural Gas Operating, LC | Kansas | 0 BBLs | 92,840 MCF | Jan 2010 - May 2026 |
| Kantor Oil Company, LLC | Kansas | 2,508 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Kelly Bayou Production | Louisiana | 2,038 BBLs | 0 MCF | Sep 1999 - Jan 2025 |
| Kennedy Oil | Wyoming | 2,731 BBLs | 21,026 MCF | Apr 1984 - Jul 2026 |
| Kentex Worland Operating Co LLC | Wyoming | 2,137 BBLs | 133,585 MCF | Oct 2025 - Jun 2026 |
| Kerr McGee Oil & Gas Onshore LP | Colorado | 2,687,140 BBLs | 24,881,636 MCF | Jan 1999 - Jul 2026 |
| Kerr-McGee Oil & Gas Onshore LP | Wyoming | 2,118 BBLs | 7,109 MCF | Mar 1994 - Jul 2026 |
| Key Operating Company | Louisiana | 16,584 BBLs | 14,806 MCF | Jan 1995 - Jan 2025 |
| KGH Operating Company | Colorado | 697 BBLs | 32,921 MCF | Jan 1999 - Jul 2026 |
| KGH Operating Company | Utah | 835 BBLs | 17,039 MCF | Sep 2016 - Jul 2026 |
| Kinder Morgan Co2 Co LP | Colorado | 361 BBLs | 19,122,319 MCF | Jan 1999 - Jul 2026 |
| Kirby Oil Company | Louisiana | 4,097 BBLs | 0 MCF | Jan 1981 - Dec 2024 |
| Kissack Resources. LLC | Wyoming | 1,208 BBLs | 0 MCF | Oct 2022 - Jul 2026 |
| Knighton Oil Company, Inc. | Kansas | 5,376 BBLs | 1,282 MCF | Jan 1980 - May 2026 |
| Koda GNB, LLC | Utah | 23,237 BBLs | 4,556,004 MCF | Nov 2025 - Jul 2026 |
| Koda Resources Operating, LLC | North Dakota | 285,050 BBLs | 412,292 MCF | Sep 2019 - Jul 2026 |
| Koda Uinta, LLC | Utah | 119,215 BBLs | 8,355,196 MCF | Nov 2025 - Jul 2026 |
| Koehn, Radell W. And Austin Koehn & Morgan Koehn | Kansas | 1,382 BBLs | 0 MCF | Jan 2010 - May 2026 |
| Kraft Oil Company LLC | Kansas | 1,054 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Kraken Operating, LLC | Montana | 713,984 BBLs | 1,246,438 MCF | Sep 2013 - Jul 2026 |
| Kraken Operating, LLC | North Dakota | 990,026 BBLs | 2,324,069 MCF | Sep 2016 - Jul 2026 |
| Krier, Kirby Oil, Inc. | Kansas | 2,886 BBLs | 0 MCF | Jan 1980 - May 2026 |
| KT Resources LLC | Colorado | 415 BBLs | 80,803 MCF | Jan 1999 - Jul 2026 |
| L & A Energy LP | Kansas | 1,012 BBLs | 0 MCF | Jan 2020 - May 2026 |
| La Delta Farms Oil Company LLC | Louisiana | 1,377 BBLs | 2,299 MCF | Mar 2016 - Dec 2024 |
| La Veta Oil & Gas, LLC | Kansas | 1,407 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Lachenmayr Oil LLC | Kansas | 2,929 BBLs | 923 MCF | Jan 1980 - May 2026 |
| Lafayette Oilfield Contractors, Inc. | Louisiana | 8,311 BBLs | 0 MCF | Nov 2020 - Dec 2024 |
| Land And Natural Resource Development, Inc. | Alabama | 2,438 BBLs | 35,219 MCF | Jul 1977 - Jun 2026 |
| Landmark Resources, Inc. | Kansas | 11,536 BBLs | 5,393 MCF | Jan 1980 - May 2026 |
| Lario Oil & Gas Company | Kansas | 34,519 BBLs | 25,648 MCF | Jan 1980 - May 2026 |
| Lawco Holdings, LLC | Kansas | 1,347 BBLs | 0 MCF | Aug 2014 - May 2026 |
| Laymon Oil II, LLC | Kansas | 6,549 BBLs | 0 MCF | Jan 1980 - May 2026 |
| Lebsack Oil Production Inc. | Kansas | 5,328 BBLs | 2,051 MCF | Jan 1980 - May 2026 |
| Lewis Operating Company | Louisiana | 1,466 BBLs | 120 MCF | Oct 1988 - Dec 2024 |
| Liberty Operating Company, LLC | Mississippi | 1,945 BBLs | 0 MCF | Dec 1976 - Jul 2026 |
| Liberty Resources Management Company, LLC | North Dakota | 1,719 BBLs | 860 MCF | Jun 2014 - Jun 2026 |
| Lime Rock Resources III-A, L.P. | North Dakota | 218,420 BBLs | 335,903 MCF | Mar 2015 - Jul 2026 |
| Lime Rock Resources V-A, L.P. | North Dakota | 42,777 BBLs | 484,486 MCF | Jul 2022 - Jul 2026 |
| Little Chief Energy Corporation | Kansas | 1,463 BBLs | 0 MCF | Jan 2010 - May 2026 |
| Lobo Operating, Inc. | Louisiana | 2,430 BBLs | 1,308 MCF | Mar 1995 - Dec 2024 |
| Loeb LLC* Herman L | Colorado | 1,290 BBLs | 0 MCF | Jan 1999 - Aug 2026 |
| Logos Operating LLC | Colorado | 1 BBLs | 1,157,839 MCF | Jan 1999 - Jul 2026 |
| Logos Operating, LLC | New Mexico | 13,474 BBLs | 11,578,677 MCF | Jul 2012 - Jul 2026 |
| Loil Oil LLC | Wyoming | 5,346 BBLs | 9,234 MCF | Nov 2016 - Jul 2026 |
| Lone Wolf Oil & Gas Co., LLC | Kansas | 1,105 BBLs | 0 MCF | Jan 2010 - May 2026 |