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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| 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 | 636 BBLs | 0 MCF | Oct 2022 - Jan 2026 |
| Kissack Water & Oil Service Inc | Wyoming | 223 BBLs | 0 MCF | Jan 1981 - Feb 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 | 93 BBLs | 20 MCF | Nov 1989 - Jan 2026 |
| KSK Partnership | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Feb 2017 |
| KSL Enterprises Inc | Wyoming | 0 BBLs | 0 MCF | Mar 1988 - Sep 2010 |
| KWB Oil Property Management Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - May 2000 |
| Kyhl H L | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - May 1986 |
| L & B Oil Company Inc | Wyoming | 0 BBLs | 0 MCF | Nov 1983 - Apr 1986 |
| L & J Operating Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1984 - Aug 2016 |
| L & R Drilling Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1999 |
| L & W Group | Wyoming | 0 BBLs | 0 MCF | Jan 1991 - Dec 1993 |
| L B Industries Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1986 - Dec 1996 |
| L K N Company | Wyoming | 0 BBLs | 0 MCF | Jan 1984 - Dec 1997 |
| L R Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Sep 2007 |
| La Prele Exploration | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Oct 1979 |
| Labarge Minerals Inc | Wyoming | 0 BBLs | 0 MCF | May 1979 - Jan 2020 |
| Ladd & Lukowicz | Wyoming | 0 BBLs | 0 MCF | Sep 1978 - May 1983 |
| Lagniappe Interest Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1986 - Jun 2006 |
| Laguna Petroleum Company | Wyoming | 0 BBLs | 0 MCF | Jan 1979 - Dec 1982 |
| Lakota Partnership | Wyoming | 0 BBLs | 0 MCF | Jul 1985 - Oct 1990 |
| Lance Oil & Gas Company Inc | Wyoming | 0 BBLs | 0 MCF | Jun 1997 - Mar 2013 |
| Landers Operating Company | Wyoming | 0 BBLs | 0 MCF | Apr 1993 - Jun 1997 |
| Langley Energy | Wyoming | 0 BBLs | 0 MCF | Oct 2010 - Jan 2016 |
| Lappin Oil LLC | Wyoming | 138 BBLs | 0 MCF | Jan 2013 - Feb 2026 |
| Laramide Production LLC | Wyoming | 0 BBLs | 0 MCF | Jan 1997 - Jul 2005 |
| Laramie Energy II LLC | Wyoming | 0 BBLs | 0 MCF | Feb 2001 - Sep 2013 |
| Lario Oil & Gas Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 2009 |
| Lasmo Energy Corporation | Wyoming | 0 BBLs | 0 MCF | Sep 1989 - Dec 1991 |
| Lawson Oil Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Mar 1996 |
| Lear Petroleum Exploration | Wyoming | 0 BBLs | 0 MCF | Dec 1980 - Jul 2013 |
| Leba Oil Co | Wyoming | 0 BBLs | 0 MCF | Jun 1984 - Feb 2007 |
| Leclair-Westwood Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Mar 1982 |
| Ledder Exploration Inc | Wyoming | 0 BBLs | 0 MCF | Mar 1993 - Mar 1997 |
| Leeman Don J | Wyoming | 0 BBLs | 0 MCF | Feb 1980 - Dec 1983 |
| Legacy Energy Inc | Wyoming | 0 BBLs | 0 MCF | Dec 2009 - Jun 2012 |
| Legacy Reserves Operating LP | Wyoming | 0 BBLs | 0 MCF | Jan 1998 - Apr 2023 |
| Leigland Thomas E | Wyoming | 0 BBLs | 0 MCF | Jan 1992 - Dec 2002 |
| Lemik Energy Company | Wyoming | 0 BBLs | 0 MCF | Jun 1983 - Aug 1987 |