| 1 | F & M Oil & Gas Co | Midland, TX 79702 | Oil & Gas Operator | Feb 2000 |
| 2 | Fagadau Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2006 |
| 3 | Famcor Oil, Inc. | Scottsdale, AZ 85260 | Oil & Gas Operator | Sep 2020 |
| 4 | Fasken Oil And Ranch, LTD. | Midland, TX 79707 | Oil & Gas Operator | Mar 2025 |
| 5 | Fasken, Barbara | Midland, TX 79701 | Oil & Gas Operator | Dec 1995 |
| 6 | FDL Operating, LLC | Judson, TX 75660 | Oil & Gas Operator | Mar 2025 |
| 7 | Fiesta Energy LLC | Midland, TX 79705 | Oil Operator | Mar 2025 |
| 8 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 9 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Mar 2025 |
| 10 | Fivestones Energy LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 11 | Floyd Operating Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2004 |
| 12 | Forest Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 13 | Forest Oil Permian Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 14 | Forge Energy, LLC | San Antonio, TX 78249 | Oil & Gas Operator | Apr 2019 |
| 15 | Formentera Operations LLC | Austin, TX 78701 | Oil & Gas Operator | Mar 2025 |
| 16 | Fortson Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2020 |
| 17 | Fortune Natural Resources Corp. | Houston, TX 77067 | Oil & Gas Operator | Dec 2003 |
| 18 | Fossil Fuels Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2000 |
| 19 | Fossil Rock Resources, Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | May 2016 |
| 20 | Four C Oil & Gas Corp. | Dallas, TX 75206 | Oil & Gas Operator | Jan 2024 |
| 21 | Fourway Oil Company | Longview, TX 75606 | Oil & Gas Operator | Mar 2025 |
| 22 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 23 | Friemel & Carpenter, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2002 |
| 24 | Friemel, Paul D. & Assoc., Inc. | Boerne, TX 78006 | Oil & Gas Operator | Mar 2007 |
| 25 | Frio Engineering Inc. | Houston, TX 77066 | Oil & Gas Operator | Mar 2025 |
| 26 | Frisco Energy, L.L.C. | Tulsa, OK 74105 | Oil & Gas Operator | Nov 2024 |
| 27 | Fueled Resources Inc | Boyd, TX 76023 | Oil & Gas Operator | Mar 2025 |
| 28 | Fulfer Oil And Cattle Co. | Jal, NM 88252 | Oil & Gas Operator | Mar 2025 |
| 29 | Fuller Petroleum Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 30 | Fuller Production, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |