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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Ballard Petroleum Holdings LLC | Wyoming | 212,985 BBLs | 504,494 MCF | Jan 1983 - Mar 2026 |
| Banding M R Inc | Wyoming | 383 BBLs | 0 MCF | Jan 1988 - Mar 2026 |
| Barn Owls LLC | Wyoming | 26,954 BBLs | 3,024 MCF | Jul 2022 - Mar 2026 |
| Berenergy Corporation | Wyoming | 2,304 BBLs | 3,331 MCF | Jan 1987 - Apr 2026 |
| Black Bear Oil Corporation | Wyoming | 8,884 BBLs | 36,925 MCF | May 2003 - Apr 2026 |
| Blake Production LLC | Wyoming | 89 BBLs | 0 MCF | Jan 1992 - Mar 2026 |
| Briscoe Petroleum LLC | Wyoming | 284 BBLs | 0 MCF | Dec 2017 - Mar 2026 |
| Burnett Oil Co Inc | Wyoming | 435 BBLs | 51 MCF | Jan 1982 - Apr 2026 |
| Carbon Creek Energy LLC | Wyoming | 0 BBLs | 2,862,086 MCF | Sep 2015 - Mar 2026 |
| Cardinal Wyoming LLC | Wyoming | 17,495 BBLs | 31 MCF | Jun 2024 - Apr 2026 |
| Century Oil And Gas LLC | Wyoming | 2,932 BBLs | 11,786 MCF | Dec 2018 - Apr 2026 |
| Chipcore LLC | Wyoming | 4,471 BBLs | 215 MCF | Sep 2012 - Apr 2026 |
| Citation Oil & Gas Corporation | Wyoming | 89,617 BBLs | 13,785 MCF | Jan 1981 - Apr 2026 |
| Contango Resources LLC | Wyoming | 385,694 BBLs | 10,412,715 MCF | Feb 2020 - Apr 2026 |
| Continental Resources Inc | Wyoming | 1,398,273 BBLs | 3,465,248 MCF | Jan 1993 - Apr 2026 |
| Cowboy Clean Fuels LLC | Wyoming | 0 BBLs | 7,596 MCF | Jul 2022 - Apr 2026 |
| Crest Resources Inc | Wyoming | 387 BBLs | 0 MCF | Dec 2021 - Apr 2026 |
| Daube Company The | Wyoming | 7,756 BBLs | 450 MCF | Jan 1990 - Apr 2026 |
| Davey Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1986 - Apr 2026 |
| Denbury Onshore LLC | Wyoming | 172,929 BBLs | 124,621 MCF | Jan 2011 - Mar 2026 |
| Devon Energy Production Company LP | Wyoming | 739,295 BBLs | 1,163,981 MCF | Jan 1978 - Apr 2026 |
| Diamond Oil & Gas LLC | Wyoming | 889 BBLs | 12,782 MCF | Oct 2011 - Apr 2026 |
| DNR Oil & Gas Inc | Wyoming | 1,079 BBLs | 1,951 MCF | Jul 1989 - Apr 2026 |
| E & B Natural Resources Management | Wyoming | 253 BBLs | 0 MCF | Feb 2011 - Apr 2026 |
| Emep II Operating LLC | Wyoming | 73,244 BBLs | 258,739 MCF | Aug 2025 - Apr 2026 |
| Emerald Operating Company | Wyoming | 0 BBLs | 0 MCF | Feb 1993 - Apr 2026 |
| Energy Equity Company | Wyoming | 0 BBLs | 1,207 MCF | Jul 1995 - Apr 2026 |
| EOG Resources Inc | Wyoming | 997,601 BBLs | 6,669,859 MCF | Jan 1978 - Apr 2026 |
| Joemar Wyoming Operating LLC | Wyoming | 2,543 BBLs | 2,816 MCF | Dec 2023 - Apr 2026 |
| Justice Oil & Gas LLC | Wyoming | 149 BBLs | 162 MCF | May 1996 - Apr 2026 |
| Keas Production Company LLC | Wyoming | 197 BBLs | 0 MCF | Mar 2017 - Mar 2026 |
| Kennedy Oil | Wyoming | 3,100 BBLs | 20,884 MCF | Apr 1984 - Apr 2026 |
| Kissack Resources. LLC | Wyoming | 948 BBLs | 0 MCF | Oct 2022 - Apr 2026 |
| Kissack Water & Oil Service Inc | Wyoming | 201 BBLs | 0 MCF | Jan 1981 - Apr 2026 |
| Loil Oil LLC | Wyoming | 4,404 BBLs | 6,872 MCF | Nov 2016 - Mar 2026 |
| M & K Oil Company LLC | Wyoming | 26,607 BBLs | 82,611 MCF | Jan 1978 - Apr 2026 |
| Maxim Drilling & Expl Inc | Wyoming | 1,883 BBLs | 17,216 MCF | Jun 1982 - Apr 2026 |
| Maximus Operating LTD | Wyoming | 13,002 BBLs | 971 MCF | Jul 2014 - Apr 2026 |
| MDS Energy Development LLC | Wyoming | 20,804 BBLs | 35,070 MCF | Jan 2025 - Mar 2026 |
| Mega Energy LLC | Wyoming | 0 BBLs | 28,302 MCF | May 2013 - Apr 2026 |
| Mi3 Energy LLC | Wyoming | 19,259 BBLs | 5,458 MCF | Nov 2025 - Apr 2026 |
| Mid-Con Energy Operating LLC | Wyoming | 6,653 BBLs | 1,373 MCF | Feb 2017 - Apr 2026 |
| Montex Drilling Company LLC | Wyoming | 904 BBLs | 4,843 MCF | Feb 2025 - Apr 2026 |
| Navigation Powder River LLC | Wyoming | 15,555 BBLs | 66,221 MCF | Dec 2016 - Apr 2026 |
| Nonsuch Natural Gas Inc | Wyoming | 311 BBLs | 29 MCF | Oct 2011 - Mar 2026 |
| North Finn LLC | Wyoming | 388 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Oedekoven Amerifields Resources LLC | Wyoming | 166 BBLs | 0 MCF | Jul 2013 - Mar 2026 |
| Oedekoven Water & Hot Oil | Wyoming | 10 BBLs | 0 MCF | May 1984 - May 2026 |
| Oilfield Salvage & Service Company | Wyoming | 2,145 BBLs | 2,283 MCF | Jan 1978 - Mar 2026 |
| Peabody Natural Gas LLC | Wyoming | 111 BBLs | 104 MCF | Jan 2001 - Mar 2026 |