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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Amplify Energy Operating LLC | Wyoming | 94,221 BBLs | 6,693,172 MCF | Jun 2017 - Feb 2024 |
| Ampolex Wy Inc | Wyoming | 0 BBLs | 0 MCF | Jun 1987 - Mar 1997 |
| Anadarko E&P Onshore LLC | Wyoming | 443,876 BBLs | 1,202,213 MCF | Aug 1992 - Feb 2024 |
| Anadarko Minerals Inc | Wyoming | 0 BBLs | 0 MCF | Nov 2010 - Sep 2016 |
| Anadarko Ogc Company | Wyoming | 0 BBLs | 0 MCF | May 1995 - Dec 1998 |
| Anadarko Petroleum Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Mar 2013 |
| Anchor Bay Corporation | Wyoming | 0 BBLs | 0 MCF | Mar 1987 - Jun 2007 |
| Anderson And Wells Oil Co | Wyoming | 0 BBLs | 0 MCF | Mar 2000 - Feb 2006 |
| Anderson Management Company | Wyoming | 0 BBLs | 0 MCF | Mar 1990 - May 2016 |
| Anderson Oil Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - May 2003 |
| Anderson-Myers Drilling Co | Wyoming | 0 BBLs | 0 MCF | Apr 1982 - Dec 1985 |
| Andrikopoulos A G | Wyoming | 0 BBLs | 0 MCF | Oct 1989 - Dec 1994 |
| Angus Petroleum Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1997 - Jun 2000 |
| Anr Production Company | Wyoming | 0 BBLs | 0 MCF | Oct 1981 - Sep 1999 |
| Anschutz Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Jul 2011 |
| Anschutz Exploration Corporation | Wyoming | 1,145,990 BBLs | 2,778,910 MCF | Nov 1997 - Jan 2024 |
| Anschutz Oil Company LLC | Wyoming | 0 BBLs | 0 MCF | Mar 2015 - Sep 2020 |
| Anschutz Pinedale Corporation | Wyoming | 0 BBLs | 0 MCF | Jun 2003 - Dec 2015 |
| Ant Hills Production | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 2023 |
| Antelope Energy Company LLC | Wyoming | 299 BBLs | 840 MCF | Apr 1986 - Feb 2024 |
| Antelope Resources Inc | Wyoming | 0 BBLs | 0 MCF | Jun 2003 - Jul 2016 |
| Antero Energy LLC | Wyoming | 0 BBLs | 0 MCF | Mar 1999 - Nov 2003 |
| Anticline International LTD | Wyoming | 0 BBLs | 0 MCF | Jan 1983 - Dec 1986 |
| Antler Energy LLC | Wyoming | 0 BBLs | 0 MCF | Jan 2014 - Aug 2023 |
| Apache Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Sep 1999 |
| Apc Operating Partnership | Wyoming | 0 BBLs | 0 MCF | Jan 1984 - Jul 1984 |
| Apollo 17 Oil And Gas Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1985 - Feb 1988 |
| Apollo Drilling And Exploration | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Oct 1980 |
| Apx Western Corporation | Wyoming | 0 BBLs | 0 MCF | Apr 1978 - Sep 1991 |
| Aquarius II Incorporated | Wyoming | 0 BBLs | 0 MCF | Dec 2015 - Oct 2017 |
| Aquarius Oil And Gas | Wyoming | 0 BBLs | 0 MCF | Jul 1983 - Sep 2017 |
| Arabie Inc | Wyoming | 0 BBLs | 0 MCF | Sep 1992 - Oct 1993 |
| Arapaho Petroleum Inc | Wyoming | 0 BBLs | 0 MCF | Feb 1978 - Feb 1992 |
| Arch Oil And Gas Company | Wyoming | 0 BBLs | 0 MCF | Apr 1980 - Feb 1994 |
| Arena Resources LLC | Wyoming | 3,432 BBLs | 4,511 MCF | Aug 2023 - Jan 2024 |
| Arens John F | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Oct 1981 |
| Argent Energy (Us) Holdings Inc | Wyoming | 0 BBLs | 0 MCF | Nov 2013 - Mar 2016 |
| Argentia Operating Company | Wyoming | 0 BBLs | 0 MCF | Jul 1988 - Oct 1991 |
| Argo Petroleum Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Jun 1987 |
| Arjay Oil Company | Wyoming | 0 BBLs | 0 MCF | Oct 1979 - May 2000 |
| Arkland Producing Co Inc | Wyoming | 0 BBLs | 0 MCF | Jun 1998 - Sep 1998 |
| Arman Oil | Wyoming | 0 BBLs | 0 MCF | Jul 1991 - Jul 1991 |
| Arnell Oil Company | Wyoming | 5,100 BBLs | 0 MCF | Jan 1978 - Feb 2024 |
| Arrowhead Resources USA LTD | Wyoming | 0 BBLs | 0 MCF | Aug 1991 - Dec 1992 |
| Asamera Oil Us Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Apr 1984 |
| Ashby John B | Wyoming | 0 BBLs | 0 MCF | May 1990 - Nov 2003 |
| Asher Associates Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1989 - Feb 2013 |
| Ashland Exploration | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - May 1979 |
| Atasca Resources Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1997 - Dec 2004 |
| Atlantic Oil And Gas Development LLC | Wyoming | 0 BBLs | 0 MCF | Jun 1996 - Dec 2023 |