| 1 | F L TRAVIS | Armstrong County, PA | Gas Property | Dec 2025 |
| 2 | FARSTER | Armstrong County, PA | Gas Property | Dec 2025 |
| 3 | FERGUSON | Armstrong County, PA | Gas Property | Dec 2025 |
| 4 | FILSON | Armstrong County, PA | Gas Property | Dec 2025 |
| 5 | FINDLEY WOLF | Armstrong County, PA | Gas Property | Dec 2025 |
| 6 | FISCUS | Armstrong County, PA | Gas Property | Dec 2025 |
| 7 | FITZGERALD | Armstrong County, PA | Gas Property | Dec 2025 |
| 8 | FLEMING | Armstrong County, PA | Gas Property | Dec 2025 |
| 9 | FLICKINGER 00 | Armstrong County, PA | Gas Property | Dec 2025 |
| 10 | FORD CITY SPORTSMANS CLUB 00 | Armstrong County, PA | Gas Property | Dec 2025 |
| 11 | FOSTER | Armstrong County, PA | Gas Property | Dec 2025 |
| 12 | FOX HOLLOW INVESTMENTS | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 13 | FRANCIS | Armstrong County, PA | Gas Property | Dec 2025 |
| 14 | FRANK M FLEMING | Armstrong County, PA | Gas Property | Dec 2025 |
| 15 | FRANK OBLOCK (F | Armstrong County, PA | Gas Property | Dec 2024 |
| 16 | FRANK SLAVICK | Armstrong County, PA | Gas Property | Dec 2025 |
| 17 | FRANKIE J SHUMAKER ETUX | Armstrong County, PA | Gas Property | Dec 2025 |
| 18 | FRANTZ UNIT 1H | Armstrong County, PA | Gas Property | Dec 2025 |
| 19 | FRED J MATTILIO | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 20 | FRED R EAKMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 21 | FREDERICK J TREGASKES ETUX | Armstrong County, PA | Gas Property | Dec 2025 |
| 22 | FURNACE RUN | Armstrong County, PA | Gas Property | Dec 2025 |