| 1501 | Wyoming Diamond A LLC | Cheyenne, WY 82007 | Gas Operator | Apr 2026 |
| 1502 | Wyoming Mineral Exploration LLC | Casper, WY 82602 | Oil Operator | Dec 2006 |
| 1503 | Wyoming Oil & Minerals Inc | Casper, WY 82601 | Oil & Gas Operator | Jun 2001 |
| 1504 | Wyoming Resources Corporation | Rapid City, SD 57702 | Oil & Gas Operator | Oct 2018 |
| 1505 | Wyoming Western Oil | Pine Bluffs, WY 82082 | Oil Operator | Sep 2019 |
| 1506 | Wytex Production Corporation | Fort Smith, AR 72903 | Oil & Gas Operator | Dec 2025 |