| 1 | F & S Energy LLC | Crescent, OK 73028 | Oil & Gas Operator | Jun 2025 |
| 2 | F C D Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 1995 |
| 3 | Farrar Carolyn Dba C J Investments | Kingfisher, OK 73750 | Oil & Gas Operator | Sep 2024 |
| 4 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | Oct 2025 |
| 5 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Jul 2025 |
| 6 | Faulkner Corporation | Oklahoma City, OK 73154-9704 | Oil & Gas Operator | Jan 2017 |
| 7 | Felix Energy LLC | Denver, CO 80202-1467 | Oil & Gas Operator | Jun 2025 |
| 8 | Femco SWD Inc | Enid, OK 73702-3907 | Oil Operator | Mar 2014 |
| 9 | Flynn Energy Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Mar 1993 |
| 10 | Focus Energy, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 2019 |
| 11 | Foreman Enterprises, Inc. | Edmond, OK 73003 | Oil & Gas Operator | May 2025 |
| 12 | Forest Oil Permian Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 13 | Formentera Operations LLC | Austin, TX 78701 | Oil & Gas Operator | Oct 2025 |
| 14 | Fossil Fuels Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2000 |
| 15 | Four-O-One Corporation | Edmond, OK 73013-1977 | Oil & Gas Operator | Mar 2015 |
| 16 | FP Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2008 |
| 17 | Fpco Oil & Gas Co. | New Orleans, LA 70160 | Oil & Gas Operator | Jun 2025 |
| 18 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |
| 19 | Fremont Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Nov 2014 |
| 20 | French Jr L R | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 21 | Frontier Operating Corporation | Albany, TX 76430 | Oil & Gas Operator | Oct 2025 |
| 22 | Fuksa Investments Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jul 2025 |
| 23 | Fullspike Energy LLC | Boyd, TX 76023 | Oil & Gas Operator | Oct 2025 |