| 1 | F C D Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 1995 |
| 2 | Fairway Resources Operating III LLC | Houston, TX 77002-2728 | Oil & Gas Operator | Oct 2025 |
| 3 | Fairway Resources Operating, LLC | Southlake, TX 76092 | Oil & Gas Operator | Aug 2022 |
| 4 | Farris Well Service LLC | Liberal, KS 67901-5644 | Oil & Gas Operator | Jul 2016 |
| 5 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | Dec 2025 |
| 6 | Faulconer, Vernon E., Inc. | Tyler, TX 75711 | Oil & Gas Operator | Nov 2025 |
| 7 | Faulkner Corporation | Oklahoma City, OK 73154-9704 | Oil & Gas Operator | Jan 2017 |
| 8 | FBF Energy LLC | Tulsa, OK 74120 | Oil & Gas Operator | Nov 2025 |
| 9 | Finlay Energy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 1999 |
| 10 | Flag-Redfern Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Jul 2002 |
| 11 | Foreman Enterprises Inc | Edmond, OK 73003 | Oil & Gas Operator | Oct 2025 |
| 12 | Fossil Creek Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2025 |
| 13 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Dec 2025 |
| 14 | Four Seas Exploration LLC | Oklahoma City, OK 73101-1557 | Oil & Gas Operator | Dec 2019 |
| 15 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 16 | FX Energy Operating, LLC | Canadian, TX 79014 | Oil & Gas Operator | Dec 2025 |