| 6601 | ROCKS | Bradford County, PA | Gas Property | Dec 2025 |
| 6602 | ROCKWELL | Crawford County, PA | Oil & Gas Property | Dec 2025 |
| 6603 | RODE | Greene County, PA | Gas Property | Dec 2025 |
| 6604 | RODNEY T MCDIVITT ET UX | Jefferson County, PA | Gas Property | Dec 2025 |
| 6605 | RODOCOY | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 6606 | ROEBER | Bradford County, PA | Gas Property | Dec 2025 |
| 6607 | ROEDER | Venango County, PA | Oil Property | Dec 2025 |
| 6608 | ROEHRIG SMITH | Bradford County, PA | Gas Property | Dec 2025 |
| 6609 | ROELL LEASE ROELL | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 6610 | ROGER | Susquehanna County, PA | Gas Property | Dec 2025 |
| 6611 | ROGER H CLAYPOOLE ETUX | Armstrong County, PA | Gas Property | Dec 2025 |
| 6612 | ROGER JOHNSTON | Jefferson County, PA | Gas Property | Dec 2025 |
| 6613 | ROGER PARRY | Greene County, PA | Gas Property | Dec 2025 |
| 6614 | ROGERS | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 6615 | ROGERS 05 235 0 | Bradford County, PA | Gas Property | Dec 2025 |
| 6616 | ROGERS UNIT | Susquehanna County, PA | Gas Property | Dec 2025 |
| 6617 | ROHANNA | Greene County, PA | Gas Property | Dec 2025 |
| 6618 | ROLAND | Bradford County, PA | Gas Property | Dec 2025 |
| 6619 | ROLAND C BLAKESLEE | Crawford County, PA | Gas Property | Dec 2024 |
| 6620 | ROLAND G TIRACORDA | Clearfield County, PA | Gas Property | Dec 2025 |
| 6621 | ROLLING ACRES | Beaver County, PA | Gas Property | Dec 2025 |
| 6622 | ROLLING HILLS | Armstrong County, PA | Gas Property | Dec 2025 |
| 6623 | ROLLINSON | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 6624 | ROMAN | Susquehanna County, PA | Gas Property | Dec 2025 |
| 6625 | ROMANETTI UNIT | Washington County, PA | Oil & Gas Property | Jun 2012 |
| 6626 | ROMEIKA J | Susquehanna County, PA | Gas Property | Dec 2025 |
| 6627 | ROMEO-WT 4911 26 | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 6628 | ROMISOUKAS UNIT 1H | Bradford County, PA | Gas Property | Dec 2025 |
| 6629 | RON 1 U | Potter County, PA | Gas Property | Dec 2025 |
| 6630 | RON 2 UH | Potter County, PA | Gas Property | Dec 2025 |
| 6631 | RON 5 UH | Potter County, PA | Gas Property | Dec 2025 |
| 6632 | RONALD | Erie County, PA | Oil & Gas Property | Dec 2025 |
| 6633 | RONALD | Westmoreland County, PA | Gas Property | Dec 2025 |
| 6634 | RONALD CHERNISKY | Indiana County, PA | Gas Property | Dec 2025 |
| 6635 | RONALD HEMMINGER | Westmoreland County, PA | Gas Property | Dec 2025 |
| 6636 | RONALD J GAFNER G | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 6637 | RONALD MEABON | Erie County, PA | Gas Property | Dec 2025 |
| 6638 | RONALD R BUTERBAUGH | Clearfield County, PA | Gas Property | Dec 2025 |
| 6639 | RONALD RUMMEL ETAL | Indiana County, PA | Gas Property | Dec 2025 |
| 6640 | RONALD SAMUEL | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 6641 | RONALD T KUNSELMAN | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 6642 | RONMARY | Sullivan County, PA | Gas Property | Dec 2025 |
| 6643 | ROOT | Tioga County, PA | Gas Property | Dec 2025 |
| 6644 | RORABAUGH | Clearfield County, PA | Gas Property | Dec 2025 |
| 6645 | RORABAUGH | Clearfield County, PA | Gas Property | Dec 2025 |
| 6646 | ROSA | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 6647 | ROSA UNIT | Fayette County, PA | Gas Property | Dec 2025 |
| 6648 | ROSALIE | Wyoming County, PA | Gas Property | Dec 2025 |
| 6649 | ROSE | Bradford County, PA | Gas Property | Dec 2025 |
| 6650 | ROSE RUGH | Indiana County, PA | Gas Property | Dec 2025 |
| 6651 | ROSE VALLEY 56H 51728 | Lycoming County, PA | Gas Property | Dec 2025 |
| 6652 | ROSE VALLEY GAMBLE | Lycoming County, PA | Gas Property | Dec 2025 |
| 6653 | ROSIEMAR | Susquehanna County, PA | Gas Property | Dec 2025 |
| 6654 | ROSS | Armstrong County, PA | Gas Property | Dec 2025 |
| 6655 | ROSS ROBERTS | Bradford County, PA | Gas Property | Dec 2025 |
| 6656 | ROSS RUN RANCH RRR | Forest County, PA | Oil & Gas Property | Dec 2014 |
| 6657 | ROSS SEANOR | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 6658 | ROSSI BRA | Bradford County, PA | Gas Property | Oct 2025 |
| 6659 | ROSTOSKY 59 | Allegheny County, PA | Gas Property | Dec 2025 |
| 6660 | ROSUL UNIT | Fayette County, PA | Gas Property | Dec 2025 |
| 6661 | ROTH | Westmoreland County, PA | Gas Property | Dec 2025 |
| 6662 | ROUGH HOLLOW 593 | Greene County, PA | Gas Property | Dec 2025 |
| 6663 | ROUGH RUN MFG CO 1118 | Butler County, PA | Gas Property | Dec 2024 |
| 6664 | ROUND TOP ENTERPRISES | Jefferson County, PA | Gas Property | Dec 2025 |
| 6665 | ROUNDTOP | Sullivan County, PA | Gas Property | Sep 2021 |
| 6666 | ROUNDWOOD | Wyoming County, PA | Gas Property | Dec 2025 |
| 6667 | ROUPP UNIT | Lycoming County, PA | Gas Property | Dec 2025 |
| 6668 | ROUSE | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 6669 | ROWE | Bradford County, PA | Gas Property | Dec 2025 |
| 6670 | ROWLAND CAROL 10067 | Washington County, PA | Gas Property | Dec 2025 |
| 6671 | ROY & ARCHER | Elk County, PA | Oil & Gas Property | Dec 2019 |
| 6672 | ROY 03 0 | Bradford County, PA | Gas Property | Dec 2025 |
| 6673 | ROY 6 | Potter County, PA | Gas Property | Dec 2024 |
| 6674 | ROY A ORR | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 6675 | ROY D LEAMER 1 | Cambria County, PA | Oil & Gas Property | Dec 2025 |
| 6676 | ROY H LUTZ | Clearfield County, PA | Gas Property | Dec 2025 |
| 6677 | ROY MUSGRAVE | Beaver County, PA | Oil & Gas Property | Dec 2023 |
| 6678 | ROY N CLAWSON FMLY HOMER BOWMAN ETUX | Indiana County, PA | Gas Property | Dec 2025 |
| 6679 | ROY RAMALE | Indiana County, PA | Gas Property | Dec 2025 |
| 6680 | ROYAL HUEY 59056 | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 6681 | ROYAL OIL | Indiana County, PA | Gas Property | Dec 2025 |
| 6682 | ROYAL OIL & GAS | Indiana County, PA | Gas Property | Dec 2025 |
| 6683 | ROYAL OIL & GAS 590 | Indiana County, PA | Gas Property | Dec 2025 |
| 6684 | ROYAL OIL & GAS CORP | Clearfield County, PA | Gas Property | Dec 2025 |
| 6685 | ROYAL OL & GAS CORP | Clearfield County, PA | Gas Property | Dec 2025 |
| 6686 | ROYSTONE | Warren County, PA | Oil & Gas Property | Dec 2010 |
| 6687 | ROZAK | Fayette County, PA | Gas Property | Dec 2025 |
| 6688 | RR ADAMS | Jefferson County, PA | Gas Property | Dec 2025 |
| 6689 | RUARK EAST RUARK EAST 1 1H | Wyoming County, PA | Gas Property | Dec 2025 |
| 6690 | RUARK EAST UNIT RUARK 11H | Wyoming County, PA | Gas Property | Dec 2025 |
| 6691 | RUARK SOUTH UNIT RUARK EAST 1 RUARK SOUTH 2H | Wyoming County, PA | Gas Property | Dec 2025 |
| 6692 | RUARK SOUTH WELL PAD RUARK | Wyoming County, PA | Gas Property | Dec 2025 |
| 6693 | RUARK UNIT P&G 5 RUARK 4H | Wyoming County, PA | Gas Property | Dec 2025 |
| 6694 | RUARK-JOHNSTON-REIMILLER UNIT P&G2 22H | Wyoming County, PA | Gas Property | Dec 2025 |
| 6695 | RUCCIO | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 6696 | RUDOLPH | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 6697 | RUDOLPH H GASTON | Indiana County, PA | Gas Property | Dec 2024 |
| 6698 | RUDOLPH L KUHNER | Indiana County, PA | Gas Property | Dec 2025 |
| 6699 | RUDY | Washington County, PA | Gas Property | Dec 2025 |
| 6700 | RUELBA L STEEL | Indiana County, PA | Gas Property | Dec 2025 |