Oil & Gas Companies in Weston County, WY
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Teapot Oil & Refining Company | Billings, MT 59101 | Oil & Gas Operator | Mar 2012 |
| 2 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Jul 2025 |
| 3 | Texaco Exploration & Prod | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 4 | Texas Oil & Gas Corporation | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 5 | Texas Vanguard Oil Company | Austin, TX 78720 | Oil & Gas Operator | Jan 2014 |
| 6 | Thomas Operating Company Inc | Greeley, CO 80634 | Oil & Gas Operator | Aug 2008 |
| 7 | Three Forks Resources LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Oct 2025 |
| 8 | Timberline Energy Inc | Franklin, PA 16323-0269 | Oil & Gas Operator | Dec 2024 |
| 9 | Tindall Operating Company | Englewood, CO 80112 | Oil & Gas Operator | Jan 2025 |
| 10 | Toco Corporation | | Oil & Gas Operator | Oct 1991 |
| 11 | Townsend Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2021 |
| 12 | Transcontinental Oil Corp. | | Oil & Gas Operator | Sep 1985 |
| 13 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | Oct 2025 |
| 14 | Tripp Oil Company Inc | Houston, TX 77023 | Oil & Gas Operator | Jan 1992 |
| 15 | Trout Kye Jr | | Oil & Gas Operator | Dec 2010 |
| 16 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Aug 2025 |
| 17 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
Production numbers shown above are only for Weston County, WY and for the production period listed.