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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Katherman Vance E | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 2004 |
| Kauffman K P Company Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1988 - Mar 1996 |
| KC Oil | Wyoming | 0 BBLs | 0 MCF | Feb 1996 - Sep 1999 |
| KC Resources Inc | Wyoming | 0 BBLs | 0 MCF | Oct 1995 - Dec 2006 |
| KC Well Service | Wyoming | 0 BBLs | 0 MCF | Apr 2022 - Jan 2026 |
| KCS Medallion Resources Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1995 - Mar 1999 |
| KCS Mountain Resources Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1995 - Nov 2006 |
| Keas Production Company LLC | Wyoming | 196 BBLs | 0 MCF | Mar 2017 - Jul 2026 |
| Keba Energy LLC | Wyoming | 0 BBLs | 0 MCF | Nov 2009 - Nov 2014 |
| Kedco Management Corp | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1981 |
| Keith F.Walker Oil & Gas Company L.L.C. | Wyoming | 7 BBLs | 0 MCF | Jul 1999 - Aug 2026 |
| Keiths Pumping Service | Wyoming | 0 BBLs | 0 MCF | Jul 1996 - Aug 2003 |
| Kekich John & Stroup Nancy | Wyoming | 0 BBLs | 0 MCF | Jan 1997 - Dec 1997 |
| Kelly Operating Company | Wyoming | 0 BBLs | 0 MCF | Jul 1989 - Oct 1991 |
| Kem Ventures LP | Wyoming | 0 BBLs | 0 MCF | Sep 2019 - Dec 2025 |
| Kemmerer Coal Co | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1981 |
| Kenai Oil & Gas Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Jun 1987 |
| Kennedy & Kennedy Resources LLC | Wyoming | 0 BBLs | 0 MCF | Oct 2005 - Jun 2006 |
| Kennedy & Mitchell | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1988 |
| Kennedy George C | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Oct 2018 |
| Kennedy Oil | Wyoming | 2,831 BBLs | 22,867 MCF | Apr 1984 - Aug 2026 |
| Kentex Worland LLC | Wyoming | 0 BBLs | 0 MCF | Apr 2019 - Sep 2025 |
| Kentex Worland Operating Co LLC | Wyoming | 2,399 BBLs | 156,345 MCF | Oct 2025 - Aug 2026 |
| Kentta & Drwenski | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Nov 1995 |
| Kerr-McGee Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1996 |
| Kerr-McGee Oil & Gas Onshore LP | Wyoming | 2,345 BBLs | 9,281 MCF | Mar 1994 - Aug 2026 |
| Kerr-McGee Rocky Mountain Corporation | Wyoming | 0 BBLs | 0 MCF | Sep 2001 - Jan 2007 |
| Kerry Petroleum Co Inc | Wyoming | 0 BBLs | 0 MCF | Sep 1982 - Sep 1995 |
| Kestrel Energy Inc | Wyoming | 0 BBLs | 0 MCF | Sep 1998 - Jan 2008 |
| Kewanee Oil Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Aug 1978 |
| Key Production Company | Wyoming | 0 BBLs | 0 MCF | Jan 1995 - Apr 2004 |
| Kiesling Oil Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Oct 2007 |
| Kinder Morgan Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Mar 2007 |
| Kings Peak Energy LLC | Wyoming | 0 BBLs | 0 MCF | Sep 2017 - Feb 2019 |
| Kings X Oil Company LLC | Wyoming | 0 BBLs | 0 MCF | Jan 2009 - Aug 2016 |
| Kirby Enterprise Capital Management LLC | Wyoming | 0 BBLs | 0 MCF | Mar 2012 - Feb 2018 |
| Kirkwood W C | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - May 2005 |
| Kiska Oil & Gas Inc | Wyoming | 0 BBLs | 0 MCF | Feb 1983 - Oct 2012 |
| Kissack Resources. LLC | Wyoming | 1,214 BBLs | 0 MCF | Oct 2022 - Aug 2026 |
| Kissack Water & Oil Service Inc | Wyoming | 180 BBLs | 0 MCF | Jan 1981 - Aug 2026 |
| Kissinger Petroleum Corp | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Aug 1981 |
| Klabzuba Oil & Gas Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Aug 2012 |
| Kloxin Energy Inc | Wyoming | 0 BBLs | 0 MCF | Aug 1990 - Oct 1992 |
| KLT Gas Inc | Wyoming | 0 BBLs | 0 MCF | Jan 2000 - Jul 2004 |
| Kobar Corporation | Wyoming | 0 BBLs | 0 MCF | Nov 1989 - Dec 1996 |
| Koch Exploration Company | Wyoming | 0 BBLs | 0 MCF | Feb 1980 - Apr 1993 |
| Koch Exploration Company LLC | Wyoming | 0 BBLs | 0 MCF | Feb 2011 - Aug 2018 |
| Koch Production Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 2002 |
| Kodiak Oil & Gas USA Inc | Wyoming | 0 BBLs | 0 MCF | Jan 2006 - Mar 2011 |
| Krejci Harry L | Wyoming | 0 BBLs | 0 MCF | Nov 1989 - May 2026 |