| 6401 | RINGGOLD SPORTSMEN ASSOC | Jefferson County, PA | Gas Property | Dec 2024 |
| 6402 | RINKHOFF AGRIC ENTER | Greene County, PA | Gas Property | Dec 2012 |
| 6403 | RINKHOFF AGRICULTURAL ENTERPRISES LLC | Greene County, PA | Gas Property | Dec 2016 |
| 6404 | RIPPLE | Armstrong County, PA | Gas Property | Dec 2024 |
| 6405 | RISTAU | Warren County, PA | Oil & Gas Property | Dec 2015 |
| 6406 | RITCHEY | Venango County, PA | Oil Property | Dec 1997 |
| 6407 | RITCHEY UNIT | Blair County, PA | Gas Property | Feb 2025 |
| 6408 | RITENOUR | Westmoreland County, PA | Gas Property | Feb 2025 |
| 6409 | RITTENHOUSE | Fayette County, PA | Gas Property | Dec 2024 |
| 6410 | RITTER UNIT | Fayette County, PA | Gas Property | Feb 2025 |
| 6411 | RITZ 03 073 0 | Bradford County, PA | Gas Property | Feb 2025 |
| 6412 | RIVER | Greene County, PA | Gas Property | Feb 2025 |
| 6413 | RIVER RIDGE | Venango County, PA | Oil Property | Dec 2024 |
| 6414 | RIVER RIDGE DEVELOPMENT INC | Venango County, PA | Oil Property | Dec 2024 |
| 6415 | RM & WB DUNN LEASE | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 6416 | ROARING RUN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6417 | ROARING RUN UNIT | Lycoming County, PA | Gas Property | Feb 2025 |
| 6418 | ROBBINS | Clearfield County, PA | Gas Property | Dec 2024 |
| 6419 | ROBBINS BRA | Bradford County, PA | Gas Property | Feb 2025 |
| 6420 | ROBERT | Jefferson County, PA | Gas Property | Dec 2024 |
| 6421 | ROBERT | Indiana County, PA | Gas Property | Dec 2024 |
| 6422 | ROBERT | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 6423 | ROBERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 6424 | ROBERT | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6425 | ROBERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 6426 | ROBERT | Jefferson County, PA | Gas Property | Dec 2024 |
| 6427 | ROBERT | Erie County, PA | Oil & Gas Property | Dec 2024 |
| 6428 | ROBERT | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 6429 | ROBERT | Armstrong County, PA | Gas Property | Dec 2024 |
| 6430 | ROBERT | Jefferson County, PA | Oil & Gas Property | Dec 2024 |
| 6431 | ROBERT | Warren County, PA | Gas Property | Dec 2024 |
| 6432 | ROBERT | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 6433 | ROBERT | Indiana County, PA | Gas Property | Dec 2024 |
| 6434 | ROBERT | Indiana County, PA | Gas Property | Dec 2017 |
| 6435 | ROBERT | Indiana County, PA | Gas Property | Dec 2024 |
| 6436 | ROBERT | Erie County, PA | Gas Property | Dec 2024 |
| 6437 | ROBERT & PAULETTE | Indiana County, PA | Gas Property | Dec 2024 |
| 6438 | ROBERT A HOY | Clarion County, PA | Gas Property | Dec 2024 |
| 6439 | ROBERT ALLISON L | Clarion County, PA | Gas Property | Dec 2024 |
| 6440 | ROBERT BOLDIN | Indiana County, PA | Gas Property | Dec 2024 |
| 6441 | ROBERT BOWERSOX | Clarion County, PA | Gas Property | Dec 2024 |
| 6442 | ROBERT BOYD SPENCE | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6443 | ROBERT BURN | Clarion County, PA | Gas Property | Feb 2025 |
| 6444 | ROBERT BURNS | Clarion County, PA | Gas Property | Dec 2024 |
| 6445 | ROBERT BUSH | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 6446 | ROBERT BUTERBAUGH | Indiana County, PA | Gas Property | Dec 2024 |
| 6447 | ROBERT C ALLISON | Clarion County, PA | Gas Property | Dec 2024 |
| 6448 | ROBERT C LEVIN ET UX | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6449 | ROBERT C ULMER A | Lycoming County, PA | Gas Property | Feb 2025 |
| 6450 | ROBERT C. CRISSMAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6451 | ROBERT C. HILLEN ETUX | Fayette County, PA | Gas Property | Dec 2024 |
| 6452 | ROBERT COLEMAN | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 6453 | ROBERT D | Crawford County, PA | Gas Property | Dec 2024 |
| 6454 | ROBERT D | Indiana County, PA | Gas Property | Dec 2024 |
| 6455 | ROBERT E PATRICK | Armstrong County, PA | Gas Property | Dec 2024 |
| 6456 | ROBERT E WISSINGER | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6457 | ROBERT GRAHAM | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6458 | ROBERT H NEHRIG | Indiana County, PA | Gas Property | Dec 2024 |
| 6459 | ROBERT HAMI | Jefferson County, PA | Gas Property | Dec 2024 |
| 6460 | ROBERT HITCHCOCK | Crawford County, PA | Gas Property | Dec 1990 |
| 6461 | ROBERT HOLDER | Mercer County, PA | Oil & Gas Property | Dec 2020 |
| 6462 | ROBERT HOUSER | Armstrong County, PA | Gas Property | Dec 2024 |
| 6463 | ROBERT J CITERONI | Indiana County, PA | Gas Property | Dec 2024 |
| 6464 | ROBERT J FABIN | Indiana County, PA | Gas Property | Dec 2024 |
| 6465 | ROBERT J. DILTS FMLY ROY R | Indiana County, PA | Gas Property | Dec 2024 |
| 6466 | ROBERT KESTER | Clearfield County, PA | Gas Property | Dec 2023 |
| 6467 | ROBERT L. CALHOUN | Armstrong County, PA | Gas Property | Dec 2024 |
| 6468 | ROBERT M | Indiana County, PA | Gas Property | Dec 2024 |
| 6469 | ROBERT M LENHART | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6470 | ROBERT MITCHELL 8 | Indiana County, PA | Gas Property | Dec 2024 |
| 6471 | ROBERT MURPHY | Westmoreland County, PA | Gas Property | Dec 2024 |
| 6472 | ROBERT N BROTHERS | Clearfield County, PA | Gas Property | Dec 2024 |
| 6473 | ROBERT OSGOOD | McKean County, PA | Gas Property | Dec 2024 |
| 6474 | ROBERT SAWYER | Clarion County, PA | Gas Property | Dec 2023 |
| 6475 | ROBERT SHORTS | Washington County, PA | Oil & Gas Property | Feb 2025 |
| 6476 | ROBERT SMITH | Washington County, PA | Gas Property | Jan 2025 |
| 6477 | ROBERT SPENCER | Erie County, PA | Gas Property | Dec 2018 |
| 6478 | ROBERT SPENCER | Clearfield County, PA | Oil & Gas Property | Dec 2024 |
| 6479 | ROBERT STRONG | Indiana County, PA | Gas Property | Dec 2024 |
| 6480 | ROBERT V MAINE | Jefferson County, PA | Gas Property | Dec 2024 |
| 6481 | ROBERT W. GRAY FM AT | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 6482 | ROBERTA B JONES | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6483 | ROBERTS | Greene County, PA | Gas Property | Dec 2015 |
| 6484 | ROBERTS 59 | Greene County, PA | Gas Property | Nov 2022 |
| 6485 | ROBERTS BEA | Beaver County, PA | Gas Property | Feb 2025 |
| 6486 | ROBERTSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 6487 | ROBINHILL | Washington County, PA | Oil & Gas Property | Feb 2025 |
| 6488 | ROBINSON | Susquehanna County, PA | Gas Property | Feb 2025 |
| 6489 | ROBINSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 6490 | ROBINSON | Bradford County, PA | Gas Property | Feb 2025 |
| 6491 | ROBINSON | Fayette County, PA | Oil & Gas Property | Feb 2025 |
| 6492 | ROBINSON | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 6493 | ROBINSON 82 | Indiana County, PA | Gas Property | Dec 2024 |
| 6494 | ROBINSON CAMPBELL 11132 | Washington County, PA | Gas Property | Feb 2025 |
| 6495 | ROBINSON FERGUSON | Bradford County, PA | Gas Property | Feb 2025 |
| 6496 | ROBY GROSE | Jefferson County, PA | Oil & Gas Property | Dec 2024 |
| 6497 | ROCHESTER & PGH | Clearfield County, PA | Gas Property | Dec 2024 |
| 6498 | ROCHESTER & PGH C | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 6499 | ROCHESTER & PGH COAL | Jefferson County, PA | Gas Property | Dec 2024 |
| 6500 | ROCHESTER & PGH COAL | Armstrong County, PA | Oil & Gas Property | Dec 2024 |