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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Anadarko E&P Onshore LLC | Wyoming | 916,810 BBLs | 1,752,218 MCF | Aug 1992 - Sep 2026 |
| Anschutz Exploration Corporation | Wyoming | 1,353,365 BBLs | 4,216,838 MCF | Nov 1997 - Aug 2026 |
| Atx Energy Partners LLC | Wyoming | 4,508 BBLs | 6,292 MCF | Jan 2018 - Sep 2026 |
| Barn Owls LLC | Wyoming | 43,280 BBLs | 6,229 MCF | Jul 2022 - Aug 2026 |
| Cenergy Resources LLC | Wyoming | 5,794 BBLs | 40,790 MCF | Jul 2023 - Aug 2026 |
| Chaco Energy Company | Wyoming | 3,322 BBLs | 40,131 MCF | Apr 1999 - Aug 2026 |
| Chipcore LLC | Wyoming | 4,990 BBLs | 221 MCF | Sep 2012 - Sep 2026 |
| Citation Oil & Gas Corporation | Wyoming | 88,663 BBLs | 12,654 MCF | Jan 1981 - Sep 2026 |
| Contango Resources LLC | Wyoming | 294,162 BBLs | 6,032,019 MCF | Feb 2020 - Sep 2026 |
| Daube Company The | Wyoming | 7,644 BBLs | 450 MCF | Jan 1990 - Aug 2026 |
| Devon Energy Production Company LP | Wyoming | 762,701 BBLs | 1,324,383 MCF | Jan 1978 - Sep 2026 |
| Diamond Oil & Gas LLC | Wyoming | 890 BBLs | 13,009 MCF | Oct 2011 - Sep 2026 |
| EOG Resources Inc | Wyoming | 1,122,406 BBLs | 6,877,978 MCF | Jan 1978 - Sep 2026 |
| Loil Oil LLC | Wyoming | 5,151 BBLs | 9,145 MCF | Nov 2016 - Sep 2026 |
| Meadow Deep LLC | Wyoming | 195 BBLs | 11,892 MCF | Mar 2010 - Sep 2026 |
| Mi3 Energy LLC | Wyoming | 19,062 BBLs | 4,563 MCF | Nov 2025 - Sep 2026 |
| Mid-Con Energy Operating LLC | Wyoming | 6,059 BBLs | 1,484 MCF | Feb 2017 - Sep 2026 |
| Moncrief W A Jr | Wyoming | 570 BBLs | 22,286 MCF | Jan 1978 - Sep 2026 |
| Montex Drilling Company LLC | Wyoming | 829 BBLs | 3,495 MCF | Feb 2025 - Sep 2026 |
| Navigation Powder River LLC | Wyoming | 13,185 BBLs | 62,251 MCF | Dec 2016 - Sep 2026 |
| Nonsuch Natural Gas Inc | Wyoming | 224 BBLs | 0 MCF | Oct 2011 - Sep 2026 |
| P O & G Operating LLC | Wyoming | 12,214 BBLs | 24,449 MCF | Jan 2017 - Aug 2026 |
| Peak Powder River Resources LLC | Wyoming | 101,801 BBLs | 469,323 MCF | Jan 2013 - Aug 2026 |
| Prima Exploration Inc | Wyoming | 12,778 BBLs | 7,933 MCF | Mar 1982 - Sep 2026 |
| Pronghorn Operating, LLC | Wyoming | 0 BBLs | 2,688,801 MCF | May 2026 - Aug 2026 |
| Ranch Oil Company | Wyoming | 2,421 BBLs | 0 MCF | Jan 1986 - Sep 2026 |
| Sage Butte PRB Operating, LLC | Wyoming | 195,647 BBLs | 575,187 MCF | Mar 2018 - Sep 2026 |
| Simon Oil LLC | Wyoming | 2,786 BBLs | 0 MCF | Jun 2000 - Aug 2026 |
| Six Bar Oil LLC | Wyoming | 5,246 BBLs | 0 MCF | Apr 2017 - Sep 2026 |
| True Oil LLC | Wyoming | 46,818 BBLs | 78,390 MCF | Jan 1978 - Sep 2026 |
| Valkyrie Operating LLC | Wyoming | 6,183 BBLs | 1,817 MCF | Sep 2018 - Sep 2026 |
| Vector Minerals Corporation | Wyoming | 223 BBLs | 5,212 MCF | Jan 1997 - Aug 2026 |
| WRC Energy LLC | Wyoming | 570,461 BBLs | 1,558,592 MCF | Aug 2018 - Sep 2026 |