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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| K P Kauffman Company Inc | Colorado | 18,846 BBLs | 135,702 MCF | Jan 1999 - Sep 2018 |
| K3 Oil & Gas Operating Company | Kansas | 3,347 BBLs | 6,752 MCF | Jan 2010 - Jul 2018 |
| Kahan And Associates, Inc | Kansas | 9,190 BBLs | 0 MCF | Jan 1980 - Jul 2018 |
| Kaiser Francis Oil Co | Wyoming | 130,922 BBLs | 231,509 MCF | Jan 1978 - Dec 2018 |
| Kaiser-Francis Oil Co | New Mexico | 59,873 BBLs | 185,532 MCF | Jan 1993 - Aug 2018 |
| Kaiser-Francis Oil Company | Louisiana | 10,711 BBLs | 99,698 MCF | Aug 1981 - Sep 2018 |
| Kaiser-Francis Oil Company | North Dakota | 88,254 BBLs | 137,887 MCF | Jul 2002 - Oct 2018 |
| Kansas Energy Company, L.L.C. | Kansas | 2,800 BBLs | 0 MCF | Jan 1980 - Jul 2018 |
| Kansas Natural Gas Operating, LC | Kansas | 0 BBLs | 136,327 MCF | Jan 2010 - Jul 2018 |
| Kansas Resource Exploration & Development, LLC | Kansas | 3,429 BBLs | 0 MCF | Jan 1980 - Jul 2018 |
| Kantor Oil Company, LLC | Kansas | 3,469 BBLs | 0 MCF | Jan 1980 - Jul 2018 |
| Kash Oil And Gas, Inc | Louisiana | 4,077 BBLs | 9,886 MCF | Apr 1986 - Sep 2018 |
| Kerr McGee Oil & Gas Onshore LP | Colorado | 2,956,063 BBLs | 21,856,863 MCF | Jan 1999 - Sep 2018 |
| Kerr-McGee Oil & Gas Onshore LP | Wyoming | 14,329 BBLs | 40,498 MCF | Jan 1979 - Dec 2018 |
| Kerr-McGee Oil & Gas Onshore, L.P. | Utah | 33,733 BBLs | 8,563,281 MCF | Jan 2006 - Sep 2018 |
| Key Operating Company | Louisiana | 3,087 BBLs | 3,528 MCF | Jan 1995 - Sep 2018 |
| KFG Petroleum Corporation | Mississippi | 6,164 BBLs | 0 MCF | Dec 1976 - Sep 2018 |
| KGH Operating Company | Colorado | 1,615 BBLs | 66,645 MCF | Jun 2000 - Sep 2018 |
| Kinder Morgan Co2 Co LP | Colorado | 0 BBLs | 36,930,089 MCF | Apr 2000 - Oct 2018 |
| Kings Peak Energy LLC | Wyoming | 14,374 BBLs | 24,516 MCF | Jan 2017 - Dec 2018 |
| Kirby Oil Company | Louisiana | 3,559 BBLs | 0 MCF | Jan 1981 - Oct 2018 |
| Knighton Oil Company, Inc. | Kansas | 8,676 BBLs | 2,333 MCF | Jan 1980 - Jul 2018 |
| Koch Exploration Company, LLC | New Mexico | 1 BBLs | 81,456 MCF | Jan 1993 - Aug 2018 |
| Kraken Operating, LLC | Montana | 189,919 BBLs | 155,332 MCF | Sep 2013 - Aug 2018 |
| Kraken Operating, LLC | North Dakota | 708,295 BBLs | 591,499 MCF | Sep 2016 - Sep 2018 |
| L. D. Drilling, Inc. | Kansas | 22,280 BBLs | 202 MCF | Jan 1980 - Jul 2018 |
| Lakeshore Operating, LLC | Kansas | 6,307 BBLs | 0 MCF | Jan 2010 - Jul 2018 |
| Land And Natural Resource Development, Inc. | Alabama | 10,713 BBLs | 164,084 MCF | Jul 1977 - Aug 2018 |
| Landmark Resources, Inc. | Kansas | 11,987 BBLs | 6,989 MCF | Jan 1980 - Jul 2018 |
| Lario Oil & Gas Company | Kansas | 41,737 BBLs | 48,418 MCF | Jan 1980 - Jul 2018 |
| Larson Operating Company | Kansas | 27,260 BBLs | 3,096 MCF | Jan 1980 - Jul 2018 |
| Lavaca River Operating Company, LLC | Louisiana | 14,726 BBLs | 8,348 MCF | Aug 2014 - Aug 2018 |
| Laymon Oil II, LLC | Kansas | 7,710 BBLs | 0 MCF | Jan 1980 - Jul 2018 |
| Layne Energy Operating, LLC | Kansas | 286 BBLs | 185,738 MCF | Oct 1984 - Jul 2018 |
| LB Exploration, Inc. | Kansas | 3,002 BBLs | 25,121 MCF | Jan 1980 - Jul 2018 |
| Lease Management Inc | Michigan | 6,134 BBLs | 0 MCF | Jan 1982 - Apr 2018 |
| Lebsack Oil Production Inc. | Kansas | 5,342 BBLs | 3,868 MCF | Jan 1980 - Jul 2018 |
| Legacy Reserves Operating LP | Montana | 20,694 BBLs | 9,767 MCF | Jun 2012 - Sep 2018 |
| Legacy Reserves Operating LP | North Dakota | 15,539 BBLs | 12,449 MCF | Oct 2006 - Sep 2018 |
| Legacy Reserves Operating LP | Wyoming | 34,619 BBLs | 627 MCF | Jan 1978 - Dec 2018 |
| Legacy Reserves Operating, LP | New Mexico | 326,895 BBLs | 823,282 MCF | May 2006 - Sep 2018 |
| Legacy Resources Co., L.P. | Louisiana | 637 BBLs | 54,441 MCF | Dec 1993 - Sep 2018 |
| Liberty Oper & Compl, Inc | Kansas | 2,687 BBLs | 0 MCF | Jan 1980 - Jul 2018 |
| Liberty Resources Management Company, LLC | North Dakota | 142,333 BBLs | 514,447 MCF | Jun 2014 - Oct 2018 |
| Lime Rock Resources II-A, L.P. | New Mexico | 116,646 BBLs | 423,643 MCF | Dec 2010 - Sep 2018 |
| Lime Rock Resources III-A, L.P. | Arkansas | 0 BBLs | 833,831 MCF | Jan 2001 - Aug 2018 |
| Lime Rock Resources III-A, L.P. | North Dakota | 438,585 BBLs | 390,239 MCF | Mar 2015 - Sep 2018 |
| Linn Operating LLC | Michigan | 1,654 BBLs | 1,261,571 MCF | Jan 1982 - Apr 2018 |
| Linn Operating, Inc. | Louisiana | 6,724 BBLs | 901,322 MCF | Feb 2008 - Sep 2018 |
| Linn Operating, LLC | Kansas | 4,269 BBLs | 3,004,896 MCF | Jan 2010 - Jul 2018 |