| 1 | R & P COAL CO | Armstrong County, PA | Gas Property | Dec 2025 |
| 2 | R BARISONE | Armstrong County, PA | Gas Property | Dec 2025 |
| 3 | R CINPINSKI | Armstrong County, PA | Gas Property | Dec 2025 |
| 4 | R CLARK | Armstrong County, PA | Gas Property | Dec 2025 |
| 5 | R FULTON | Armstrong County, PA | Gas Property | Dec 2025 |
| 6 | R M MCLAUGHLIN | Armstrong County, PA | Gas Property | Dec 2025 |
| 7 | R O HUNTER | Armstrong County, PA | Gas Property | Dec 2022 |
| 8 | R S PROCIOUS | Armstrong County, PA | Gas Property | Dec 2025 |
| 9 | R STULL ET UX | Armstrong County, PA | Gas Property | Dec 2025 |
| 10 | R WESLEY SMITH | Armstrong County, PA | Gas Property | Dec 2025 |
| 11 | R WESLEY SMITH ET AL | Armstrong County, PA | Gas Property | Dec 2025 |
| 12 | R.&A. BARRETT | Armstrong County, PA | Gas Property | Dec 2025 |
| 13 | R.&S. SMITH ET AL | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 14 | RALPH MYERS | Armstrong County, PA | Gas Property | Dec 2025 |
| 15 | RALPH S WRIGHT | Armstrong County, PA | Gas Property | Dec 2025 |
| 16 | RANDY SNYDER | Armstrong County, PA | Gas Property | Dec 2025 |
| 17 | RANKIN/TOY | Armstrong County, PA | Gas Property | Dec 2025 |
| 18 | RAY G HEILMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 19 | RAY W FISCUS ETUX | Armstrong County, PA | Gas Property | Dec 2024 |
| 20 | RAYMOND | Armstrong County, PA | Gas Property | Dec 2025 |
| 21 | RAYMOND L RICHMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 22 | REDDINGER | Armstrong County, PA | Gas Property | Dec 2025 |
| 23 | REED | Armstrong County, PA | Gas Property | Dec 2025 |
| 24 | REEFER | Armstrong County, PA | Gas Property | Dec 2025 |
| 25 | REEGER | Armstrong County, PA | Gas Property | Dec 2025 |
| 26 | REESEDALE RIDGE | Armstrong County, PA | Gas Property | Dec 2025 |
| 27 | REESMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 28 | REESMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 29 | RENSHAW | Armstrong County, PA | Gas Property | Dec 2025 |
| 30 | RICHEY | Armstrong County, PA | Gas Property | Dec 2025 |
| 31 | RIDGEVIEW | Armstrong County, PA | Gas Property | Dec 2025 |
| 32 | RIFFER | Armstrong County, PA | Gas Property | Dec 2025 |
| 33 | RIGHI | Armstrong County, PA | Gas Property | Dec 2025 |
| 34 | RINGGOLD | Armstrong County, PA | Gas Property | Dec 2025 |
| 35 | RINGGOLD | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 36 | RINGGOLD MINES INC. UNIT NO. 1 | Armstrong County, PA | Gas Property | Dec 2025 |
| 37 | RIPPLE | Armstrong County, PA | Gas Property | Dec 2025 |
| 38 | ROARING RUN | Armstrong County, PA | Gas Property | Dec 2025 |
| 39 | ROBERT | Armstrong County, PA | Gas Property | Dec 2025 |
| 40 | ROBERT | Armstrong County, PA | Gas Property | Dec 2025 |
| 41 | ROBERT | Armstrong County, PA | Gas Property | Dec 2025 |
| 42 | ROBERT | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 43 | ROBERT C. CRISSMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 44 | ROBERT E PATRICK | Armstrong County, PA | Gas Property | Dec 2025 |
| 45 | ROBERT HOUSER | Armstrong County, PA | Gas Property | Dec 2025 |
| 46 | ROBERT L. CALHOUN | Armstrong County, PA | Gas Property | Dec 2025 |
| 47 | ROBERTSON | Armstrong County, PA | Gas Property | Dec 2025 |
| 48 | ROBINSON | Armstrong County, PA | Gas Property | Dec 2025 |
| 49 | ROCHESTER & PGH COAL | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 50 | ROCHESTER & PITTSBURG | Armstrong County, PA | Gas Property | Dec 2025 |
| 51 | ROCHESTER & PITTSBURGH COAL CO | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 52 | ROCK FURNA | Armstrong County, PA | Gas Property | Dec 2025 |
| 53 | ROGER H CLAYPOOLE ETUX | Armstrong County, PA | Gas Property | Dec 2025 |
| 54 | ROLLING HILLS | Armstrong County, PA | Gas Property | Dec 2025 |
| 55 | ROSS | Armstrong County, PA | Gas Property | Dec 2025 |
| 56 | RUPERT | Armstrong County, PA | Gas Property | Dec 2025 |
| 57 | RUPERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 58 | RUPP | Armstrong County, PA | Gas Property | Dec 2025 |
| 59 | RUPP | Armstrong County, PA | Gas Property | Dec 2025 |
| 60 | RUPP | Armstrong County, PA | Gas Property | Dec 2025 |
| 61 | RUSSELL L JR & GWEN | Armstrong County, PA | Gas Property | Dec 2025 |
| 62 | RUTH ISEMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 63 | RUTH L KIMMEL | Armstrong County, PA | Gas Property | Dec 2025 |