| 1 | Fabco | Big Lake, TX 76932 | Oil & Gas Operator | Oct 2025 |
| 2 | Fair Operating, Inc. | Boerne, TX 78015 | Oil & Gas Operator | Oct 2025 |
| 3 | Farmers Of Tulsa Energy Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Sep 1997 |
| 4 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Jul 2025 |
| 5 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Oct 2025 |
| 6 | Fenix Petroleum Group LLC | Washington, TX 77880 | Oil Operator | Jul 2019 |
| 7 | Fenway Energy Development Co. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 8 | Fields Oil & Gas Company, LLC | Dallas, TX 75230 | Oil & Gas Operator | Oct 2025 |
| 9 | Fiml Natural Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2014 |
| 10 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 11 | Finaly Resources LLC | Sunset Beach, CA 90742 | Oil & Gas Operator | Oct 2025 |
| 12 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Oct 2025 |
| 13 | First Permian, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 14 | Fisher Oil Co. | Big Lake, TX 76932 | Oil & Gas Operator | Oct 2025 |
| 15 | Five States Operating Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Aug 2025 |
| 16 | Flat Top Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 17 | Flow Production Company | Midland, TX 79708 | Oil & Gas Operator | Mar 2005 |
| 18 | Forbes, C. C. Company | Alice, TX 78333 | Oil & Gas Operator | Sep 2015 |
| 19 | Foreland Operating, LLC | Royse City, TX 75189 | Oil & Gas Operator | Oct 2021 |
| 20 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 21 | Formentera Operations LLC | Austin, TX 78701 | Oil & Gas Operator | Oct 2025 |
| 22 | Fortune Production Co. | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2008 |
| 23 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Oct 2025 |
| 24 | Four Starr Energy, Inc. | Dallas, TX 75243 | Gas Operator | May 2016 |
| 25 | Four Starr Production, LLC | Dallas, TX 75243 | Oil & Gas Operator | Oct 2025 |
| 26 | Fowler Oil & Gas LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Oct 2025 |
| 27 | Franklin, J.W. Oil Operator | | Oil & Gas Operator | Nov 2001 |
| 28 | Free Rein Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | Oct 2025 |
| 29 | Freeman Energy Inc. (I) | Fredericksbrg, TX 78624 | Oil & Gas Operator | Aug 1996 |