| 1 | F&H Operating Company LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 2 | Fagadau Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2006 |
| 3 | Falls Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 2025 |
| 4 | Falls Production Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 5 | Farrell Oil Company | Lubbock, TX 79424 | Oil & Gas Operator | Oct 2025 |
| 6 | Felderhoff Production Company | Muenster, TX 76252 | Oil & Gas Operator | Oct 2025 |
| 7 | Felty Drilling Co. Inc | Burkburnett, TX 76354 | Oil & Gas Operator | Oct 2025 |
| 8 | Felty Production, Inc. | Burkburnett, TX 76354 | Oil Operator | Oct 2025 |
| 9 | Felty, F. T. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2018 |
| 10 | Ferguson, S. M. Jr., Inc. | Dallas, TX 75218 | Oil & Gas Operator | Oct 2025 |
| 11 | Field Production Company | Cleburne, TX 76033 | Oil & Gas Operator | Mar 2023 |
| 12 | Fin Energy, LLC | Wichita Falls, TX 76308 | Oil Operator | Oct 2025 |
| 13 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 14 | Finnell Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2009 |
| 15 | Finnell Oil Services, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 16 | Flusche Properties, L.L.C. | Electra, TX 76360 | Oil & Gas Operator | Jan 2017 |
| 17 | Flusche Supply, Inc. | Electra, TX 76360 | Oil & Gas Operator | Aug 1994 |
| 18 | Flusche, Herb | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2005 |
| 19 | Foree Oil Company | Terrell, TX 75160 | Oil & Gas Operator | Oct 2025 |
| 20 | Forster, Fred Jr. | Midland, TX 79705 | Oil & Gas Operator | Aug 2008 |
| 21 | Fox Oil, Inc. | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 1999 |
| 22 | Fraco Services, Inc. | Burkburnett, TX 76354 | Oil Operator | Oct 2025 |
| 23 | Fredna Oil Co. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2020 |
| 24 | Fresno Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Oct 2025 |
| 25 | Fulfer, O. L. Operating Co., Inc | Iowa Park, TX 76367 | Oil & Gas Operator | Nov 1999 |
| 26 | Fullspike Energy LLC | Boyd, TX 76023 | Oil & Gas Operator | Oct 2025 |
| 27 | Fultz Oil Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1995 |
| 28 | Future Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 1999 |