| 1 | F & M Oil & Gas Co | Midland, TX 79702 | Oil & Gas Operator | Feb 2000 |
| 2 | Falcon Production Co. | Floresville, TX 78114 | Oil & Gas Operator | Dec 2025 |
| 3 | Fasken Oil And Ranch, LTD. | Midland, TX 79707 | Oil & Gas Operator | Dec 2025 |
| 4 | Fasken, Barbara | Midland, TX 79701 | Oil & Gas Operator | Dec 1995 |
| 5 | Faulconer Energy, LLC | Tyler, TX 75711 | Oil & Gas Operator | Dec 2025 |
| 6 | Faulconer, Vernon E., Inc. | Tyler, TX 75711 | Oil & Gas Operator | Sep 2025 |
| 7 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Dec 2025 |
| 8 | Ffa Petroleum Services, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2018 |
| 9 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Dec 2025 |
| 10 | Firstrike Energy Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Jan 2025 |
| 11 | Five-Jab, Inc. | Tomball, TX 77377 | Oil & Gas Operator | Dec 2025 |
| 12 | Fletcher Operating, LLC | Fairhope, AL 36532 | Oil & Gas Operator | Dec 2025 |
| 13 | Flint Oak Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Dec 2025 |
| 14 | Forbes, C. C. Company | Alice, TX 78333 | Oil & Gas Operator | Sep 2015 |
| 15 | Forbes, Charles C. | Hebbronville, TX 78361 | Oil & Gas Operator | Jul 2011 |
| 16 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 17 | Forest Oil Permian Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 18 | Forza Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2025 |
| 19 | Four Star Oil & Gas Company | Houston, TX 77252 | Oil & Gas Operator | Sep 2025 |
| 20 | Fran Investments, Inc. | Laredo, TX 78043 | Oil & Gas Operator | Dec 2025 |
| 21 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 22 | Frio Engineering Inc. | Houston, TX 77066 | Oil & Gas Operator | Dec 2025 |
| 23 | Frio Production Co. | Alice, TX 78333 | Oil & Gas Operator | Sep 1998 |
| 24 | Frost, C.M., P.M. & V.W. | Simonton, TX 77476 | Oil & Gas Operator | Feb 2000 |
| 25 | Fuller Petroleum Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |