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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Anadarko E&P Onshore LLC | Wyoming | 444,539 BBLs | 1,199,758 MCF | Aug 1992 - Oct 2025 |
| Anschutz Exploration Corporation | Wyoming | 1,336,206 BBLs | 4,479,944 MCF | Nov 1997 - Sep 2025 |
| Atx Energy Partners LLC | Wyoming | 4,620 BBLs | 5,616 MCF | Jan 2018 - Oct 2025 |
| Barn Owls LLC | Wyoming | 26,184 BBLs | 2,340 MCF | Jul 2022 - Oct 2025 |
| Carbon Creek Energy LLC | Wyoming | 0 BBLs | 3,122,334 MCF | Sep 2015 - Sep 2025 |
| Cenergy Resources LLC | Wyoming | 5,453 BBLs | 55,012 MCF | Jul 2023 - Oct 2025 |
| Chaco Energy Company | Wyoming | 3,289 BBLs | 39,172 MCF | Apr 1999 - Sep 2025 |
| Chipcore LLC | Wyoming | 7,538 BBLs | 1,111 MCF | Sep 2012 - Oct 2025 |
| Citation Oil & Gas Corporation | Wyoming | 87,906 BBLs | 13,192 MCF | Jan 1981 - Oct 2025 |
| Contango Resources LLC | Wyoming | 388,067 BBLs | 4,957,212 MCF | Feb 2020 - Oct 2025 |
| Continental Resources Inc | Wyoming | 893,193 BBLs | 2,746,010 MCF | Jan 1993 - Oct 2025 |
| Daube Company The | Wyoming | 7,571 BBLs | 450 MCF | Jan 1990 - Oct 2025 |
| Denbury Onshore LLC | Wyoming | 165,084 BBLs | 118,040 MCF | Jan 2011 - Sep 2025 |
| Devon Energy Production Company LP | Wyoming | 717,336 BBLs | 1,170,560 MCF | Jan 1978 - Oct 2025 |
| Diamond Oil & Gas LLC | Wyoming | 1,124 BBLs | 13,232 MCF | Oct 2011 - Oct 2025 |
| EOG Resources Inc | Wyoming | 983,000 BBLs | 6,527,810 MCF | Jan 1978 - Oct 2025 |
| Kaiser Francis Oil Co | Wyoming | 3,712 BBLs | 63,833 MCF | Jan 1983 - Oct 2025 |
| Loil Oil LLC | Wyoming | 4,948 BBLs | 10,753 MCF | Nov 2016 - Oct 2025 |
| Matrix Production Company | Wyoming | 25,466 BBLs | 21,421 MCF | Jan 1994 - Sep 2025 |
| Meadow Deep LLC | Wyoming | 47 BBLs | 9,528 MCF | Mar 2010 - Oct 2025 |
| Mid-Con Energy Operating LLC | Wyoming | 7,409 BBLs | 2,465 MCF | Feb 2017 - Oct 2025 |
| Moncrief W A Jr | Wyoming | 778 BBLs | 22,362 MCF | Jan 1978 - Oct 2025 |
| Montex Drilling Company LLC | Wyoming | 930 BBLs | 3,403 MCF | Feb 2025 - Oct 2025 |
| Navigation Powder River LLC | Wyoming | 14,707 BBLs | 67,193 MCF | Dec 2016 - Oct 2025 |
| Nonsuch Natural Gas Inc | Wyoming | 501 BBLs | 42 MCF | Oct 2011 - Oct 2025 |
| P O & G Operating LLC | Wyoming | 12,312 BBLs | 22,905 MCF | Jan 2017 - Sep 2025 |
| Peak Powder River Resources LLC | Wyoming | 77,493 BBLs | 397,134 MCF | Jan 2013 - Oct 2025 |
| Prima Exploration Inc | Wyoming | 13,427 BBLs | 8,723 MCF | Mar 1982 - Oct 2025 |
| Ranch Oil Company | Wyoming | 1,803 BBLs | 0 MCF | Jan 1986 - Oct 2025 |
| Sage Butte PRB Operating, LLC | Wyoming | 151,607 BBLs | 453,816 MCF | Mar 2018 - Sep 2025 |
| True Oil LLC | Wyoming | 47,783 BBLs | 63,299 MCF | Jan 1978 - Oct 2025 |
| Valkyrie Operating LLC | Wyoming | 7,512 BBLs | 2,382 MCF | Sep 2018 - Oct 2025 |
| Vector Minerals Corporation | Wyoming | 108 BBLs | 1,726 MCF | Jan 1997 - Sep 2025 |
| WRC Energy LLC | Wyoming | 302,787 BBLs | 1,023,030 MCF | Aug 2018 - Oct 2025 |