| 1 | Fagadau Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2006 |
| 2 | Fambrough Oil & Gas, LLC | San Angelo, TX 76905 | Oil & Gas Operator | Oct 2025 |
| 3 | Fambrough, Tim D. | San Angelo, TX 76905 | Oil & Gas Operator | Nov 2016 |
| 4 | Federal Oil, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Oct 2025 |
| 5 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 6 | First American Operating Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2006 |
| 7 | Five K Partnership | Graham, TX 76450 | Oil & Gas Operator | Oct 2023 |
| 8 | Flournoy, Russell B. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2020 |
| 9 | Foag, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2022 |
| 10 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Oct 2025 |
| 11 | Four Corners Petroleum II, LLC | Denver, CO 80215 | Oil & Gas Operator | Feb 2023 |
| 12 | Franklin, J.W. Oil Operator | | Oil & Gas Operator | Nov 2001 |
| 13 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 14 | Friendly Energy Services, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Oct 2025 |
| 15 | Frontier Resources, Inc. | Dallas, TX 75214 | Oil & Gas Operator | Oct 2025 |
| 16 | Fuller Petroleum Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |