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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Kerr McGee Oil & Gas Onshore LP | Colorado | 2,244,446 BBLs | 24,859,801 MCF | Jan 1999 - Nov 2020 |
| Kerr-McGee Oil & Gas Onshore LP | Wyoming | 5,927 BBLs | 34,236 MCF | Jan 1979 - Dec 2020 |
| Key Operating Company | Louisiana | 2,776 BBLs | 4,047 MCF | Jan 1995 - Sep 2018 |
| KFG Petroleum Corporation | Mississippi | 3,056 BBLs | 0 MCF | Dec 1976 - Nov 2020 |
| KGH Operating Company | Colorado | 1,284 BBLs | 53,592 MCF | Jun 2000 - Oct 2020 |
| Kinder Morgan Co2 Co LP | Colorado | 192 BBLs | 21,455,821 MCF | Apr 2000 - Dec 2020 |
| Kirby Oil Company | Louisiana | 4,102 BBLs | 0 MCF | Jan 1981 - Oct 2018 |
| Knighton Oil Company, Inc. | Kansas | 6,455 BBLs | 1,647 MCF | Jan 1980 - Aug 2020 |
| Koda Resources Operating, LLC | North Dakota | 13,205 BBLs | 15,206 MCF | Sep 2019 - Nov 2020 |
| Kraken Development III, LLC | North Dakota | 201,327 BBLs | 328,067 MCF | Oct 2018 - Nov 2020 |
| Kraken Operating, LLC | North Dakota | 568,022 BBLs | 1,210,962 MCF | Sep 2016 - Nov 2020 |
| L. D. Drilling, Inc. | Kansas | 16,475 BBLs | 0 MCF | Jan 1980 - Aug 2020 |
| Lachenmayr Oil LLC | Kansas | 3,222 BBLs | 0 MCF | Jan 1980 - Aug 2020 |
| Lambda Energy Resources LLC | Michigan | 13,818 BBLs | 444,392 MCF | Jan 1982 - Oct 2020 |
| Land And Natural Resource Development, Inc. | Alabama | 6,113 BBLs | 105,683 MCF | Jul 1977 - Sep 2020 |
| Landmark Resources, Inc. | Kansas | 10,808 BBLs | 5,427 MCF | Jan 1980 - Aug 2020 |
| Lario Oil & Gas Company | Kansas | 32,233 BBLs | 26,424 MCF | Jan 1980 - Aug 2020 |
| Lavaca River Operating Company, LLC | Louisiana | 11,785 BBLs | 6,312 MCF | Aug 2014 - Aug 2018 |
| Lawco Holdings, LLC | Kansas | 3,199 BBLs | 0 MCF | Aug 2014 - Aug 2020 |
| Layline Oil And Gas LLC | Michigan | 8,576 BBLs | 10,727 MCF | Jan 1982 - Aug 2020 |
| Laymon Oil II, LLC | Kansas | 12,501 BBLs | 0 MCF | Jan 1980 - Aug 2020 |
| LB Exploration, Inc. | Kansas | 3,054 BBLs | 9,876 MCF | Jan 1980 - Aug 2020 |
| Lease Management Inc | Michigan | 5,197 BBLs | 0 MCF | Jan 1982 - Aug 2020 |
| Lebsack Oil Production Inc. | Kansas | 7,155 BBLs | 2,349 MCF | Jan 1980 - Aug 2020 |
| Legacy Reserves Operating LP | Montana | 14,767 BBLs | 7,505 MCF | Jun 2012 - Nov 2020 |
| Legacy Reserves Operating LP | North Dakota | 11,483 BBLs | 5,673 MCF | Oct 2006 - Nov 2020 |
| Legacy Reserves Operating LP | Wyoming | 29,915 BBLs | 462 MCF | Jan 1978 - Dec 2020 |
| Legacy Reserves Operating, LP | New Mexico | 164,487 BBLs | 632,672 MCF | May 2006 - Nov 2020 |
| Legacy Resources Co., L.P. | Louisiana | 756 BBLs | 57,844 MCF | Dec 1993 - Sep 2018 |
| Lewis Operating Company | Louisiana | 2,250 BBLs | 260 MCF | Oct 1988 - Aug 2018 |
| Liberty Pioneer Energy Source, Inc | Utah | 0 BBLs | 94,616 MCF | Mar 2012 - Dec 2020 |
| Liberty Resources Management Company, LLC | North Dakota | 137,639 BBLs | 385,567 MCF | Jun 2014 - Dec 2020 |
| Lime Rock Resources III-A, L.P. | Arkansas | 0 BBLs | 632,269 MCF | Jan 2001 - Oct 2020 |
| Lime Rock Resources III-A, L.P. | North Dakota | 418,648 BBLs | 402,749 MCF | Mar 2015 - Nov 2020 |
| Linde Inc | Colorado | 0 BBLs | 104,881 MCF | Jan 1999 - Oct 2020 |
| Linn Operating, Inc. | Louisiana | 5,529 BBLs | 255,566 MCF | Feb 2008 - Sep 2018 |
| Lko Operating LLC | Louisiana | 380 BBLs | 38,403 MCF | Aug 2014 - Sep 2018 |
| Lobo Operating, Inc. | Louisiana | 26,364 BBLs | 33,848 MCF | Mar 1995 - Aug 2018 |
| Loeb LLC* Herman L | Colorado | 2,462 BBLs | 18,859 MCF | Jan 1999 - Dec 2020 |
| Logos Operating, LLC | New Mexico | 39,049 BBLs | 2,619,994 MCF | Jul 2012 - Oct 2020 |
| Lone Wolf Oil & Gas Co., LLC | Kansas | 2,400 BBLs | 0 MCF | Jan 2010 - Aug 2020 |
| Lonewolf Operating, LLC | Montana | 3,272 BBLs | 10,205 MCF | Aug 2018 - Dec 2020 |
| Longfellow Energy, LP | New Mexico | 3,444 BBLs | 24,294 MCF | Jul 2017 - Oct 2020 |
| Lotus Operating Company, L.L.C. | Kansas | 4,527 BBLs | 74,561 MCF | Jan 1980 - Aug 2020 |
| Louisiana Delta Oil Co, LLC | Louisiana | 3,401 BBLs | 9,605 MCF | Jul 2007 - Oct 2018 |
| Louisiana Jordan Oil Company, Inc. | Louisiana | 3,560 BBLs | 79,835 MCF | Jan 2013 - Sep 2018 |
| Luff Exploration Company | North Dakota | 13,426 BBLs | 12,197 MCF | Dec 1996 - Nov 2020 |
| M & G DRLG Co Inc | New Mexico | 45 BBLs | 76,814 MCF | May 1995 - Nov 2020 |
| M & K Oil Company LLC | Wyoming | 20,821 BBLs | 81,558 MCF | Jan 2015 - Dec 2020 |
| M & M Exploration, Inc. | Kansas | 1,770 BBLs | 20,641 MCF | Mar 2002 - Aug 2020 |