| 1 | Family Trust B, The | San Angelo, TX 76904 | Oil & Gas Operator | May 2019 |
| 2 | Fargo Exploration Co. | Abilene, TX 79601 | Oil & Gas Operator | Dec 1995 |
| 3 | Farrington, Walter L., Jr. | Tyler, TX 75701 | Oil & Gas Operator | Feb 2002 |
| 4 | Federal Energy Development Co. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2011 |
| 5 | Ffa Petroleum Services | Victoria, TX 77903 | Oil & Gas Operator | Sep 2001 |
| 6 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 7 | Fiscus Drilling Co., Inc. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2015 |
| 8 | Flint Rock Resources MGMNT, Inc. | Austin, TX 78734 | Oil & Gas Operator | Mar 2025 |
| 9 | Flynn, Ben A. Trustee | Coleman, TX 76834 | Oil & Gas Operator | Jul 2001 |
| 10 | Fortuna Exploration, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Mar 2025 |
| 11 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Mar 2025 |
| 12 | Four C Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Jan 2024 |
| 13 | Fourcooks Oil & Gas, LLC | Waco, TX 76710 | Oil Operator | Mar 2025 |
| 14 | Fultz Oil Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1995 |
| 15 | Furry Oil & Gas, Inc. | Bangs, TX 76823 | Oil & Gas Operator | Mar 2025 |
| 16 | Furry Operating Account | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 17 | Furry Producing Company | Brownwood, TX 76801 | Oil & Gas Operator | Mar 2025 |