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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Trek Aec, LLC | Kansas | 7,570 BBLs | 9,265 MCF | Jan 1980 - Jan 2026 |
| Tribar Resources LLC | Wyoming | 5,201 BBLs | 333 MCF | Jul 2023 - Mar 2026 |
| Trimble & Maclaskey Oil LLC | Kansas | 9,338 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| Trinity Operating (Usg), LLC | Louisiana | 0 BBLs | 11,032,457 MCF | Aug 2020 - Dec 2024 |
| Triple Crown Operating LLC | Kansas | 1,145 BBLs | 0 MCF | Feb 2015 - Jan 2026 |
| True Oil LLC | Colorado | 3,395 BBLs | 8,411 MCF | Jan 1999 - Mar 2026 |
| True Oil LLC | Montana | 6,785 BBLs | 4,766 MCF | Jan 1986 - Mar 2026 |
| True Oil LLC | North Dakota | 48,272 BBLs | 84,315 MCF | Jul 2002 - Mar 2026 |
| True Oil LLC | Wyoming | 55,265 BBLs | 61,027 MCF | Jan 1978 - Mar 2026 |
| U.D. Man, Inc. | Louisiana | 1,721 BBLs | 0 MCF | Aug 2021 - Dec 2024 |
| Uinta Wax Operating, LLC | Utah | 736,359 BBLs | 811,889 MCF | Sep 2021 - Mar 2026 |
| Union Gas Operating Company | Louisiana | 531 BBLs | 25,562 MCF | Sep 2007 - Dec 2024 |
| Union Valley Petroleum Corporation | Kansas | 2,120 BBLs | 15,179 MCF | Jan 1995 - Jan 2026 |
| United World Energy Corporation | Louisiana | 5,507 BBLs | 2,283 MCF | Jul 1993 - Dec 2024 |
| Unitex Oil & Gas, L.L.C. | New Mexico | 3,076 BBLs | 310 MCF | Oct 2018 - Mar 2026 |
| Urban Oil & Gas Group, LLC | Utah | 0 BBLs | 1,969,683 MCF | Jul 2019 - Mar 2026 |
| Urban Oil And Gas Group LLC | Kansas | 1,129 BBLs | 636 MCF | Jan 1980 - Jan 2026 |
| Us Oil & Gas Inc | Utah | 6,173 BBLs | 2,198 MCF | Jul 1955 - Mar 2026 |
| Us Oil Resources LLC | Kansas | 1,620 BBLs | 0 MCF | Jun 2017 - Jan 2026 |
| Utah Gas Op LTD | Utah | 2,816 BBLs | 470,649 MCF | Feb 2018 - Mar 2026 |
| Utah Oil LLC | Kansas | 2,276 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| V & R Oil | Kansas | 977 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| V C P Michigan, LLC | Michigan | 629 BBLs | 311,764 MCF | Feb 2020 - Mar 2026 |
| V-F Petroleum Inc | New Mexico | 58,043 BBLs | 221,416 MCF | Jan 1993 - Mar 2026 |
| V. Francis Weigel Family Partnership LLC | Kansas | 2,443 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| Val Energy, Inc. | Kansas | 15,313 BBLs | 17,692 MCF | Jan 1980 - Jan 2026 |
| Valkyrie Operating LLC | Wyoming | 7,215 BBLs | 1,971 MCF | Sep 2018 - Mar 2026 |
| Valkyrie Operating, LLC | North Dakota | 5,280 BBLs | 4,755 MCF | Mar 2021 - Mar 2026 |
| Vamco Operations | Kansas | 1,612 BBLs | 1,169 MCF | Jan 1980 - Jan 2026 |
| Vaquero Uinta, LLC | Utah | 28,532 BBLs | 149,274 MCF | Jun 2021 - Mar 2026 |
| VCP Wyoming LLC | Wyoming | 7,070 BBLs | 0 MCF | Jun 2025 - Mar 2026 |
| Veenker Resources, Inc. | Kansas | 1,812 BBLs | 4,005 MCF | Jan 1980 - Jan 2026 |
| Ventex Operating Corp. | Alabama | 975 BBLs | 370 MCF | Nov 1990 - Mar 2026 |
| Venture Oil & Gas Inc. | Alabama | 3,520 BBLs | 3,573 MCF | Dec 1990 - Mar 2026 |
| Venture Oil & Gas Inc. | Mississippi | 74,318 BBLs | 110,101 MCF | Nov 1976 - Mar 2026 |
| Venture Resources, Inc. | Kansas | 9,525 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| Verdad Resources LLC | Colorado | 672,991 BBLs | 2,712,405 MCF | Jan 1999 - Feb 2026 |
| Verde Oil Company | Kansas | 1,779 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| Vess Oil Corporation | Kansas | 78,814 BBLs | 11,233 MCF | Jan 1980 - Jan 2026 |
| Viking Resources, Inc | Kansas | 2,662 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| Vincent Oil Corporation | Kansas | 19,101 BBLs | 21,754 MCF | Jan 1980 - Jan 2026 |
| Vintage Drilling LLC | New Mexico | 1,263 BBLs | 11,036 MCF | Jan 1993 - Mar 2026 |
| W&T Offshore, Inc. | Alabama | 582 BBLs | 469,883 MCF | Dec 1991 - Mar 2026 |
| W.D. Short Oil Co., LLC | Kansas | 2,769 BBLs | 0 MCF | Jan 1980 - Jan 2026 |
| Wagner Oil Company | Louisiana | 3,581 BBLs | 248 MCF | Jan 1999 - Dec 2024 |
| Wapiti Operating LLC | Colorado | 0 BBLs | 200,193 MCF | Jun 1999 - Feb 2026 |
| Wapiti Operating, LLC | New Mexico | 0 BBLs | 964,239 MCF | Nov 2019 - Mar 2026 |
| Wapiti Operating, LLC | Utah | 7,256 BBLs | 905,115 MCF | Jul 2013 - Mar 2026 |
| Wapiti Petroleum, LLC | Kansas | 1,247 BBLs | 2,125 MCF | Jan 2020 - Jan 2026 |
| Warhorse Petroleum Inc | Kansas | 3,140 BBLs | 0 MCF | Jan 2010 - Jan 2026 |