| 1 | F And S Deni LLC | | Oil Operator | Dec 2025 |
| 2 | F P I Antrim One Inc | | Gas Operator | Nov 1991 |
| 3 | Fair Energies Inc | | Oil Operator | Aug 2025 |
| 4 | Fairway Petroleum Inc | Stafford, TX 77497 | Oil & Gas Operator | Nov 2001 |
| 5 | Federal Oil & Gas - Rood L L C | | Oil & Gas Operator | Dec 2025 |
| 6 | Federated Natural Resources Corp | | Oil & Gas Operator | Oct 1989 |
| 7 | Federated Natural Resources Corp And Fede | | Oil & Gas Operator | Feb 1989 |
| 8 | Federated Oil And Gas Properties Inc | | Oil & Gas Operator | Nov 2025 |
| 9 | Finders Co And Sullivan And Co | | Oil & Gas Operator | May 1987 |
| 10 | Finders Co The | | Oil & Gas Operator | Jan 1998 |
| 11 | Fisher McCall Oil And Gas Inc | | Oil Operator | Dec 2014 |
| 12 | Fleeharty Willie W | | Oil & Gas Operator | Jun 1991 |
| 13 | Fleur David Corp | | Gas Operator | Jul 2001 |
| 14 | Flynn Energy Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Mar 1993 |
| 15 | Force Antrim Development Inc | | Gas Operator | Dec 1999 |
| 16 | Fortyfive Energy LLC | | Gas Operator | Dec 2025 |
| 17 | Fruehauf Antrim LP | | Gas Operator | Jan 2005 |
| 18 | Fruehauf H R Jr | | Gas Operator | Jan 2004 |
| 19 | Fruehauf Janet A Dba Top O Michigan Resources | | Gas Operator | Jan 2004 |