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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| JP Oil Wyoming LLC | Wyoming | 2,454 BBLs | 4,125 MCF | Jan 2018 - Dec 2019 |
| Juniper Resources Exploration Company, LLC | New Mexico | 4,108 BBLs | 61,136 MCF | Mar 2017 - Sep 2018 |
| Justiss Oil Company, Inc. | Louisiana | 5,364 BBLs | 69,987 MCF | Mar 1981 - Sep 2018 |
| K & N Petroleum, Inc. | Kansas | 3,957 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| K P Kauffman Company Inc | Colorado | 18,182 BBLs | 135,968 MCF | Jan 1999 - Feb 2019 |
| K P Kauffman Company Inc | New Mexico | 2,789 BBLs | 0 MCF | Oct 2004 - Sep 2018 |
| K3 Oil & Gas Operating Company | Kansas | 3,688 BBLs | 9,064 MCF | Jan 2010 - Dec 2018 |
| Kahan And Associates, Inc | Kansas | 7,418 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| Kaiser Francis Oil Co | Wyoming | 100,907 BBLs | 189,844 MCF | Jan 1978 - Dec 2019 |
| Kaiser-Francis Oil Co | New Mexico | 49,985 BBLs | 145,731 MCF | Jan 1993 - Sep 2018 |
| Kaiser-Francis Oil Company | Louisiana | 10,711 BBLs | 99,698 MCF | Aug 1981 - Sep 2018 |
| Kaiser-Francis Oil Company | North Dakota | 33,092 BBLs | 33,845 MCF | Jul 2002 - Feb 2019 |
| Kansas Natural Gas Operating, LC | Kansas | 0 BBLs | 145,811 MCF | Jan 2010 - Dec 2018 |
| Kansas Resource Exploration & Development, LLC | Kansas | 3,302 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| Kantor Oil Company, LLC | Kansas | 3,515 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| Kash Oil And Gas, Inc | Louisiana | 4,347 BBLs | 9,886 MCF | Apr 1986 - Oct 2018 |
| Kerr McGee Oil & Gas Onshore LP | Colorado | 2,968,978 BBLs | 23,771,215 MCF | Jan 1999 - Feb 2019 |
| Kerr-McGee Oil & Gas Onshore LP | Wyoming | 10,341 BBLs | 52,948 MCF | Jan 1979 - Dec 2019 |
| Kerr-McGee Oil & Gas Onshore, LP | Utah | 27,700 BBLs | 7,321,471 MCF | Jan 2006 - Feb 2019 |
| Key Operating Company | Louisiana | 3,087 BBLs | 3,528 MCF | Jan 1995 - Sep 2018 |
| KFG Petroleum Corporation | Mississippi | 4,204 BBLs | 0 MCF | Dec 1976 - Feb 2019 |
| Kinder Morgan Co2 Co LP | Colorado | 0 BBLs | 40,303,715 MCF | Apr 2000 - Feb 2019 |
| Kirby Oil Company | Louisiana | 3,559 BBLs | 0 MCF | Jan 1981 - Oct 2018 |
| Knighton Oil Company, Inc. | Kansas | 7,292 BBLs | 1,924 MCF | Jan 1980 - Dec 2018 |
| Koch Exploration Company, LLC | New Mexico | 42 BBLs | 83,438 MCF | Jan 1993 - Aug 2018 |
| Kraken Development III, LLC | North Dakota | 52,104 BBLs | 70,389 MCF | Oct 2018 - Feb 2019 |
| Kraken Operating, LLC | Montana | 252,724 BBLs | 251,415 MCF | Sep 2013 - Dec 2018 |
| Kraken Operating, LLC | North Dakota | 925,280 BBLs | 1,369,057 MCF | Sep 2016 - Feb 2019 |
| L. D. Drilling, Inc. | Kansas | 20,773 BBLs | 286 MCF | Jan 1980 - Dec 2018 |
| Lachenmayr Oil LLC | Kansas | 3,153 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| Land And Natural Resource Development, Inc. | Alabama | 9,999 BBLs | 140,535 MCF | Jul 1977 - Dec 2018 |
| Landmark Resources, Inc. | Kansas | 11,930 BBLs | 6,473 MCF | Jan 1980 - Dec 2018 |
| Lario Oil & Gas Company | Kansas | 33,273 BBLs | 47,696 MCF | Jan 1980 - Dec 2018 |
| Larson Operating Company | Kansas | 22,731 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| Lavaca River Operating Company, LLC | Louisiana | 14,726 BBLs | 8,348 MCF | Aug 2014 - Aug 2018 |
| Laymon Oil II, LLC | Kansas | 12,283 BBLs | 0 MCF | Jan 1980 - Dec 2018 |
| LB Exploration, Inc. | Kansas | 2,051 BBLs | 19,412 MCF | Jan 1980 - Dec 2018 |
| Lease Management Inc | Michigan | 5,030 BBLs | 0 MCF | Jan 1982 - Apr 2018 |
| Lebsack Oil Production Inc. | Kansas | 6,221 BBLs | 3,836 MCF | Jan 1980 - Dec 2018 |
| Legacy Reserves Operating LP | Montana | 20,567 BBLs | 10,640 MCF | Jun 2012 - Feb 2019 |
| Legacy Reserves Operating LP | North Dakota | 14,230 BBLs | 9,827 MCF | Oct 2006 - Feb 2019 |
| Legacy Reserves Operating LP | Wyoming | 36,870 BBLs | 531 MCF | Jan 1978 - Dec 2019 |
| Legacy Reserves Operating, LP | New Mexico | 321,930 BBLs | 831,558 MCF | May 2006 - Sep 2018 |
| Legacy Resources Co., L.P. | Louisiana | 637 BBLs | 54,441 MCF | Dec 1993 - Sep 2018 |
| Liberty Pioneer Energy Source, Inc | Utah | 0 BBLs | 56,237 MCF | Mar 2012 - Feb 2019 |
| Liberty Resources Management Company, LLC | North Dakota | 154,559 BBLs | 407,907 MCF | Jun 2014 - Mar 2019 |
| Lime Rock Resources II-A, L.P. | New Mexico | 112,906 BBLs | 421,116 MCF | Dec 2010 - Oct 2018 |
| Lime Rock Resources III-A, L.P. | Arkansas | 0 BBLs | 803,059 MCF | Jan 2001 - Jan 2019 |
| Lime Rock Resources III-A, L.P. | North Dakota | 501,748 BBLs | 412,441 MCF | Mar 2015 - Feb 2019 |
| Linde Inc | Colorado | 0 BBLs | 88,337 MCF | Jan 1999 - Feb 2019 |