| 6301 | RENN UNIT A | Lycoming County, PA | Gas Property | Jun 2025 |
| 6302 | RENO | Venango County, PA | Oil Property | Dec 2006 |
| 6303 | RENO | Butler County, PA | Gas Property | Jun 2025 |
| 6304 | RENO UNIT 1H | Butler County, PA | Gas Property | Jun 2025 |
| 6305 | RENOE | Centre County, PA | Gas Property | Dec 2024 |
| 6306 | RENOSKY | Indiana County, PA | Gas Property | Dec 2024 |
| 6307 | RENSHAW | Armstrong County, PA | Gas Property | Jun 2025 |
| 6308 | RENSMA | Forest County, PA | Oil Property | Dec 2021 |
| 6309 | RENSMA | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6310 | RENSMA | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6311 | RENSMA | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6312 | RENSMA | Crawford County, PA | Gas Property | Dec 2024 |
| 6313 | RENSMA STEPHENS | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6314 | RENSMA STOUT RS | Venango County, PA | Oil Property | Dec 2013 |
| 6315 | REPIK UNIT | Indiana County, PA | Gas Property | Dec 2024 |
| 6316 | REPINE 07 022 0 | Susquehanna County, PA | Gas Property | Jun 2025 |
| 6317 | RESOURCE RECOVERY | Centre County, PA | Gas Property | Jun 2025 |
| 6318 | REUBEN BUGHMAN | Jefferson County, PA | Gas Property | Dec 2024 |
| 6319 | REXFORD | Bradford County, PA | Gas Property | Mar 2022 |
| 6320 | REXFORD L & DOROTHY C HUBER | Indiana County, PA | Gas Property | Dec 2004 |
| 6321 | REYNEN J | Susquehanna County, PA | Gas Property | Jun 2025 |
| 6322 | REYNLOW PARK | Jefferson County, PA | Gas Property | Dec 2024 |
| 6323 | REYNOLDS | Lycoming County, PA | Gas Property | Jun 2025 |
| 6324 | REYNOLDS R | Susquehanna County, PA | Gas Property | Jun 2025 |
| 6325 | REYNOLDS RX | Potter County, PA | Oil & Gas Property | Dec 2024 |
| 6326 | REYNOLDS UNIT | Wyoming County, PA | Gas Property | Jun 2025 |
| 6327 | REYNOLDS UNIT REIMILLER 1 REYNOLDS 1H | Wyoming County, PA | Gas Property | Jun 2025 |
| 6328 | RGB BRA | Bradford County, PA | Gas Property | Jun 2025 |
| 6329 | RHEA-LAWER | Indiana County, PA | Gas Property | Dec 2024 |
| 6330 | RHL22 | Greene County, PA | Gas Property | Jun 2025 |
| 6331 | RHL23 | Greene County, PA | Oil & Gas Property | Jun 2025 |
| 6332 | RHL4 | Greene County, PA | Oil & Gas Property | Jun 2025 |
| 6333 | RHODA GRACE BEERCHECK | Jefferson County, PA | Oil & Gas Property | Dec 2024 |
| 6334 | RHODES | Lycoming County, PA | Gas Property | Jun 2025 |
| 6335 | RHONE GAMBLE | Lycoming County, PA | Gas Property | Jun 2025 |
| 6336 | RHP-A | Clearfield County, PA | Gas Property | Jun 2025 |
| 6337 | RHUEL STIFFLER | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6338 | RICCI | Susquehanna County, PA | Gas Property | Jun 2025 |
| 6339 | RICE | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 6340 | RICE UNIT | Greene County, PA | Gas Property | May 2019 |
| 6341 | RICH | Bradford County, PA | Gas Property | Jun 2025 |
| 6342 | RICH FARMS | Fayette County, PA | Oil & Gas Property | Jun 2025 |
| 6343 | RICH HILL COAL MINING CO | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6344 | RICHARD | Venango County, PA | Gas Property | Dec 2024 |
| 6345 | RICHARD | Erie County, PA | Gas Property | Dec 2024 |
| 6346 | RICHARD | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6347 | RICHARD | Potter County, PA | Gas Property | Dec 2017 |
| 6348 | RICHARD A SHIDEMANTLE | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 6349 | RICHARD APPLEBEE | Erie County, PA | Gas Property | Dec 2024 |
| 6350 | RICHARD E HENTON | Crawford County, PA | Gas Property | Dec 2024 |
| 6351 | RICHARD HUESSENER | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6352 | RICHARD J CERAR | Greene County, PA | Gas Property | Dec 2022 |
| 6353 | RICHARD L B | Indiana County, PA | Gas Property | Dec 2024 |
| 6354 | RICHARD L STEWART | Clarion County, PA | Gas Property | Dec 2024 |
| 6355 | RICHARD M KOONTZ | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6356 | RICHARD N. LOMMOCK | Indiana County, PA | Gas Property | Dec 2024 |
| 6357 | RICHARD NULPH | Indiana County, PA | Gas Property | Dec 2024 |
| 6358 | RICHARD P RIN | Indiana County, PA | Gas Property | Dec 2024 |
| 6359 | RICHARD R WALKER ET AL | Butler County, PA | Oil & Gas Property | Dec 2019 |
| 6360 | RICHARD SUS | Susquehanna County, PA | Gas Property | Jun 2025 |
| 6361 | RICHARD W CHAMBERS | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6362 | RICHARDSON | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6363 | RICHARDSON | Mercer County, PA | Gas Property | Dec 2024 |
| 6364 | RICHEY | Armstrong County, PA | Gas Property | Dec 2024 |
| 6365 | RICHLAND SPORTSM | Butler County, PA | Gas Property | Dec 2024 |
| 6366 | RICKETTS | Clearfield County, PA | Gas Property | Dec 2024 |
| 6367 | RIDDLE | Crawford County, PA | Gas Property | Dec 2024 |
| 6368 | RIDENOUR | Sullivan County, PA | Gas Property | Jun 2025 |
| 6369 | RIDER | Fayette County, PA | Gas Property | Dec 2024 |
| 6370 | RIDER PARK SMITH 1H | Lycoming County, PA | Gas Property | Jun 2025 |
| 6371 | RIDGE ROAD | Greene County, PA | Gas Property | Jun 2025 |
| 6372 | RIDGEVIEW | Armstrong County, PA | Gas Property | Dec 2024 |
| 6373 | RIDGWAY LIGHT & HEAT | Elk County, PA | Gas Property | Dec 2024 |
| 6374 | RIDGWAY LIGHT & HEAT | Elk County, PA | Gas Property | Dec 2024 |
| 6375 | RIFFER | Armstrong County, PA | Gas Property | Dec 2024 |
| 6376 | RIGGS | Greene County, PA | Oil & Gas Property | Dec 2023 |
| 6377 | RIGHI | Armstrong County, PA | Gas Property | Dec 2024 |
| 6378 | RINGGOLD | Armstrong County, PA | Gas Property | Jun 2025 |
| 6379 | RINGGOLD | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 6380 | RINGGOLD CORP | Jefferson County, PA | Gas Property | Dec 2024 |
| 6381 | RINGGOLD MINES INC. UNIT NO. 1 | Armstrong County, PA | Gas Property | Dec 2024 |
| 6382 | RINGGOLD SPORTSMEN ASSOC | Jefferson County, PA | Gas Property | Dec 2024 |
| 6383 | RINKHOFF AGRIC ENTER | Greene County, PA | Gas Property | Dec 2012 |
| 6384 | RINKHOFF AGRICULTURAL ENTERPRISES LLC | Greene County, PA | Gas Property | Dec 2016 |
| 6385 | RIPPLE | Armstrong County, PA | Gas Property | Dec 2024 |
| 6386 | RISTAU | Warren County, PA | Oil & Gas Property | Dec 2015 |
| 6387 | RITCHEY | Venango County, PA | Oil Property | Dec 1997 |
| 6388 | RITCHEY UNIT | Blair County, PA | Gas Property | Jun 2025 |
| 6389 | RITENOUR | Westmoreland County, PA | Gas Property | Jun 2025 |
| 6390 | RITTENHOUSE | Fayette County, PA | Gas Property | Dec 2024 |
| 6391 | RITTER UNIT | Fayette County, PA | Gas Property | Jun 2025 |
| 6392 | RITZ 03 073 0 | Bradford County, PA | Gas Property | Jun 2025 |
| 6393 | RIVER | Greene County, PA | Gas Property | Jun 2025 |
| 6394 | RIVER RIDGE | Venango County, PA | Oil Property | Dec 2024 |
| 6395 | RIVER RIDGE DEVELOPMENT INC | Venango County, PA | Oil Property | Dec 2024 |
| 6396 | RM & WB DUNN LEASE | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 6397 | ROARING RUN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6398 | ROARING RUN UNIT | Lycoming County, PA | Gas Property | Jun 2025 |
| 6399 | ROBBINS | Clearfield County, PA | Gas Property | Dec 2024 |
| 6400 | ROBBINS BRA | Bradford County, PA | Gas Property | Jun 2025 |