| 6301 | ROBERT | Indiana County, PA | Gas Property | Dec 2024 |
| 6302 | ROBERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 6303 | ROBERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 6304 | ROBERT | Jefferson County, PA | Oil & Gas Property | Dec 2024 |
| 6305 | ROBERT | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6306 | ROBERT | Indiana County, PA | Gas Property | Dec 2024 |
| 6307 | ROBERT | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6308 | ROBERT | Erie County, PA | Oil & Gas Property | Dec 2024 |
| 6309 | ROBERT | Jefferson County, PA | Gas Property | Dec 2024 |
| 6310 | ROBERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 6311 | ROBERT | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 6312 | ROBERT | Jefferson County, PA | Gas Property | Dec 2024 |
| 6313 | ROBERT | Warren County, PA | Gas Property | Dec 2024 |
| 6314 | ROBERT | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 6315 | ROBERT & PAULETTE | Indiana County, PA | Gas Property | Dec 2024 |
| 6316 | ROBERT A HOY | Clarion County, PA | Gas Property | Dec 2024 |
| 6317 | ROBERT ALLISON L | Clarion County, PA | Gas Property | Dec 2024 |
| 6318 | ROBERT BOLDIN | Indiana County, PA | Gas Property | Dec 2024 |
| 6319 | ROBERT BOWERSOX | Clarion County, PA | Gas Property | Dec 2024 |
| 6320 | ROBERT BOYD SPENCE | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6321 | ROBERT BURN | Clarion County, PA | Gas Property | Oct 2025 |
| 6322 | ROBERT BUSH | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 6323 | ROBERT BUTERBAUGH | Indiana County, PA | Gas Property | Dec 2024 |
| 6324 | ROBERT C ALLISON | Clarion County, PA | Gas Property | Dec 2024 |
| 6325 | ROBERT C LEVIN ET UX | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6326 | ROBERT C ULMER A | Lycoming County, PA | Gas Property | Oct 2025 |
| 6327 | ROBERT C. CRISSMAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6328 | ROBERT C. HILLEN ETUX | Fayette County, PA | Gas Property | Dec 2024 |
| 6329 | ROBERT COLEMAN | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 6330 | ROBERT D | Indiana County, PA | Gas Property | Dec 2024 |
| 6331 | ROBERT D | Crawford County, PA | Gas Property | Dec 2024 |
| 6332 | ROBERT E PATRICK | Armstrong County, PA | Gas Property | Dec 2024 |
| 6333 | ROBERT E WISSINGER | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6334 | ROBERT GRAHAM | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6335 | ROBERT H NEHRIG | Indiana County, PA | Gas Property | Dec 2024 |
| 6336 | ROBERT HAMI | Jefferson County, PA | Gas Property | Dec 2024 |
| 6337 | ROBERT HITCHCOCK | Crawford County, PA | Gas Property | Dec 1990 |
| 6338 | ROBERT HOLDER | Mercer County, PA | Oil & Gas Property | Dec 2020 |
| 6339 | ROBERT HOUSER | Armstrong County, PA | Gas Property | Dec 2024 |
| 6340 | ROBERT J CITERONI | Indiana County, PA | Gas Property | Dec 2024 |
| 6341 | ROBERT J FABIN | Indiana County, PA | Gas Property | Dec 2024 |
| 6342 | ROBERT J. DILTS FMLY ROY R | Indiana County, PA | Gas Property | Dec 2024 |
| 6343 | ROBERT KESTER | Clearfield County, PA | Gas Property | Dec 2023 |
| 6344 | ROBERT L. CALHOUN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6345 | ROBERT M | Indiana County, PA | Gas Property | Dec 2024 |
| 6346 | ROBERT M LENHART | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6347 | ROBERT MITCHELL 8 | Indiana County, PA | Gas Property | Dec 2024 |
| 6348 | ROBERT MURPHY | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6349 | ROBERT N BROTHERS | Clearfield County, PA | Gas Property | Dec 2024 |
| 6350 | ROBERT OSGOOD | McKean County, PA | Gas Property | Dec 2024 |
| 6351 | ROBERT SAWYER | Clarion County, PA | Gas Property | Dec 2023 |
| 6352 | ROBERT SHORTS | Washington County, PA | Oil & Gas Property | Oct 2025 |
| 6353 | ROBERT SMITH | Washington County, PA | Gas Property | Oct 2025 |
| 6354 | ROBERT SPENCER | Erie County, PA | Gas Property | Dec 2018 |
| 6355 | ROBERT SPENCER | Clearfield County, PA | Oil & Gas Property | Dec 2024 |
| 6356 | ROBERT STRONG | Indiana County, PA | Gas Property | Dec 2024 |
| 6357 | ROBERT V MAINE | Jefferson County, PA | Gas Property | Dec 2024 |
| 6358 | ROBERT W. GRAY FM AT | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6359 | ROBERTA B JONES | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6360 | ROBERTS | Greene County, PA | Gas Property | Dec 2015 |
| 6361 | ROBERTS 59 | Greene County, PA | Gas Property | Oct 2025 |
| 6362 | ROBERTS BEA | Beaver County, PA | Gas Property | Oct 2025 |
| 6363 | ROBERTSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 6364 | ROBINHILL | Washington County, PA | Oil & Gas Property | Oct 2025 |
| 6365 | ROBINSON | Fayette County, PA | Oil & Gas Property | Oct 2025 |
| 6366 | ROBINSON | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6367 | ROBINSON | Bradford County, PA | Gas Property | Oct 2025 |
| 6368 | ROBINSON | Susquehanna County, PA | Gas Property | Oct 2025 |
| 6369 | ROBINSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 6370 | ROBINSON 82 | Indiana County, PA | Gas Property | Dec 2024 |
| 6371 | ROBINSON CAMPBELL 11132 | Washington County, PA | Gas Property | Oct 2025 |
| 6372 | ROBINSON FERGUSON | Bradford County, PA | Gas Property | Oct 2025 |
| 6373 | ROBY GROSE | Jefferson County, PA | Oil & Gas Property | Dec 2024 |
| 6374 | ROCHESTER & PGH | Clearfield County, PA | Gas Property | Dec 2024 |
| 6375 | ROCHESTER & PGH C | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6376 | ROCHESTER & PGH COAL | Jefferson County, PA | Gas Property | Dec 2024 |
| 6377 | ROCHESTER & PGH COAL | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 6378 | ROCHESTER & PGH COAL | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6379 | ROCHESTER & PGH COAL CO | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6380 | ROCHESTER & PGH COAL CO | Jefferson County, PA | Gas Property | Dec 2024 |
| 6381 | ROCHESTER & PGH COAL CO | Jefferson County, PA | Gas Property | Dec 2024 |
| 6382 | ROCHESTER & PITT | Indiana County, PA | Gas Property | Dec 2024 |
| 6383 | ROCHESTER & PITTS | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6384 | ROCHESTER & PITTSBURG | Armstrong County, PA | Gas Property | Dec 2024 |
| 6385 | ROCHESTER & PITTSBURGH CO | Indiana County, PA | Gas Property | Dec 2024 |
| 6386 | ROCHESTER & PITTSBURGH COAL CO | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 6387 | ROCHESTER & PITTSBURGH COAL CO | Indiana County, PA | Gas Property | Dec 2024 |
| 6388 | ROCHESTER & PITTSUBRGH COAL CO | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6389 | ROCHESTER&PITTSBURGH COAL | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6390 | ROCK FURNA | Armstrong County, PA | Gas Property | Dec 2024 |
| 6391 | ROCKEFELLER (05-275-0 | Susquehanna County, PA | Gas Property | Oct 2025 |
| 6392 | ROCKS | Bradford County, PA | Gas Property | Oct 2025 |
| 6393 | RODE | Greene County, PA | Gas Property | Dec 2024 |
| 6394 | RODNEY T MCDIVITT ET UX | Jefferson County, PA | Gas Property | Dec 2024 |
| 6395 | RODOCOY | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 6396 | ROEBER | Bradford County, PA | Gas Property | Oct 2025 |
| 6397 | ROEDER | Venango County, PA | Oil Property | Dec 2024 |
| 6398 | ROEHRIG SMITH | Bradford County, PA | Gas Property | Oct 2025 |
| 6399 | ROELL LEASE ROELL | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6400 | ROGER | Susquehanna County, PA | Gas Property | Oct 2025 |