| 1 | Fahey Oil & Gas | | Oil & Gas Operator | Jul 2021 |
| 2 | Faulconer Inc* Vernon E | | Gas Operator | Oct 2018 |
| 3 | Fees Jr And Son Oil & Gas* Walter S | | Oil & Gas Operator | Sep 2025 |
| 4 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Nov 2025 |
| 5 | Forestar Group Inc | | Oil Operator | Sep 2015 |
| 6 | Fortitude Exploration Co | | Oil & Gas Operator | Aug 2025 |
| 7 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2025 |
| 8 | Fountainhead Resources LTD | | Oil & Gas Operator | Apr 2016 |
| 9 | Four Corners Energy, LLC | Gulf Breeze, FL 32563 | Oil & Gas Operator | Dec 2025 |
| 10 | Four Star Oil & Gas Company | Houston, TX 77252 | Oil & Gas Operator | Sep 2025 |
| 11 | Fram Operating LLC | | Oil & Gas Operator | Dec 2018 |
| 12 | Fritz & Digman Inc | | Oil Operator | Sep 2025 |
| 13 | Fritzler Resources Inc | Fort Morgan, CO 80701 | Oil & Gas Operator | Jun 2025 |
| 14 | Fulcrum Energy Operating, LLC | Denver, CO 80206 | Oil & Gas Operator | Dec 2025 |
| 15 | Fundare Resources Operating Company LLC | | Oil & Gas Operator | Sep 2025 |