| 5501 | NORTH BEAVER-KEPHART 3H | Lawrence County, PA | Oil & Gas Property | May 2025 |
| 5502 | NORTH COAST ENERGY FELTON | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5503 | NORTH EAST | Erie County, PA | Gas Property | Dec 2024 |
| 5504 | NORTH FORK | Tioga County, PA | Gas Property | May 2025 |
| 5505 | NORTH GERFIN PRICE | Susquehanna County, PA | Gas Property | May 2025 |
| 5506 | NORTH PENN | Potter County, PA | Gas Property | Dec 2024 |
| 5507 | NORTH PENN | Potter County, PA | Oil & Gas Property | Dec 2024 |
| 5508 | NORTH PENN GAS CO | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5509 | NORTH PRICE | Susquehanna County, PA | Gas Property | May 2025 |
| 5510 | NORTH VALENTINE PRICE | Susquehanna County, PA | Gas Property | May 2025 |
| 5511 | NORTHERN | Elk County, PA | Oil & Gas Property | Dec 2018 |
| 5512 | NORTHERN ALLEGHENY CONSERVATION ASS | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5513 | NORTHERN CENTRAL BANK | Clearfield County, PA | Gas Property | Dec 2024 |
| 5514 | NORTHFORK LP WARRANT 23 | Elk County, PA | Gas Property | Dec 2024 |
| 5515 | NORTHWEST MINING NW | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 5516 | NORTHWESTERN X | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5517 | NORTHWET MINING NW | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 5518 | NORTON | Sullivan County, PA | Gas Property | Jan 2025 |
| 5519 | NORTON-GLASSMAN LOT 515 | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5520 | NORWIN SCHOOL DISTRICT 00 | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 5521 | NOSS UNIT | Beaver County, PA | Gas Property | May 2025 |
| 5522 | NOVOSEL | McKean County, PA | Oil & Gas Property | Dec 2021 |
| 5523 | NOVOSEL LOT 436 472 | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5524 | NOWICKI | Susquehanna County, PA | Gas Property | May 2025 |
| 5525 | NOWRYTOWN | Indiana County, PA | Gas Property | Dec 2024 |
| 5526 | NUHFER | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5527 | NULL BOBST UNIT | Lycoming County, PA | Gas Property | May 2025 |
| 5528 | NULL EUGENE | Lycoming County, PA | Gas Property | May 2025 |
| 5529 | NW SECTION 1 10 | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5530 | NYAL M CATHCART | Clearfield County, PA | Gas Property | Dec 2024 |
| 5531 | NYE BRANCH | Jefferson County, PA | Gas Property | Dec 2024 |
| 5532 | O & R KOHL | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 5533 | O CRAMER | Indiana County, PA | Gas Property | Dec 2024 |
| 5534 | O F HILL | Indiana County, PA | Gas Property | Dec 2024 |
| 5535 | O GIBSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 5536 | O J KING | Armstrong County, PA | Gas Property | Dec 2024 |
| 5537 | O M RE | Clearfield County, PA | Gas Property | Dec 2024 |
| 5538 | O REILLY 1 | Susquehanna County, PA | Gas Property | May 2025 |
| 5539 | O W RIGGLE | Armstrong County, PA | Gas Property | Dec 2024 |
| 5540 | OAK RIDGE N | Susquehanna County, PA | Gas Property | May 2025 |
| 5541 | OAK TREE FAIRWAY UNIT | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5542 | OAKES | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5543 | OAKES | McKean County, PA | Oil Property | Dec 2007 |
| 5544 | OAKLAND | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5545 | OAKLAND CEMET | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5546 | OAKMONT COUNT | Allegheny County, PA | Gas Property | Dec 2024 |
| 5547 | OAKMONT EAST | Allegheny County, PA | Gas Property | Dec 2024 |
| 5548 | OBER UNIT | Bradford County, PA | Gas Property | May 2025 |
| 5549 | OBER UNIT | Westmoreland County, PA | Gas Property | Dec 2023 |
| 5550 | OBLINSKY | Indiana County, PA | Gas Property | Dec 2024 |
| 5551 | OBRIEN | Susquehanna County, PA | Gas Property | May 2025 |
| 5552 | OCHS | Clarion County, PA | Gas Property | Dec 2024 |
| 5553 | OCHS | Clearfield County, PA | Gas Property | Dec 2024 |
| 5554 | OCHS INVESTMENT LTD PARTNERSHIP | Clarion County, PA | Gas Property | Dec 2024 |
| 5555 | OCHS/SBI | Armstrong County, PA | Gas Property | Dec 2024 |
| 5556 | OCTA NUPP | Indiana County, PA | Gas Property | Dec 2024 |
| 5557 | ODONNELL | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 5558 | ODONNELL | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5559 | ODONNELL JOSEPH UNIT | Washington County, PA | Gas Property | May 2025 |
| 5560 | ODOWD | Susquehanna County, PA | Gas Property | May 2025 |
| 5561 | OESTERLING | Armstrong County, PA | Gas Property | May 2025 |
| 5562 | OFFUTT | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 5563 | OGONTZ FISHING CLUB | Lycoming County, PA | Gas Property | May 2025 |
| 5564 | OHIO VALLEY LBC UNIT | Washington County, PA | Oil & Gas Property | May 2025 |
| 5565 | OIL CREEK S | Venango County, PA | Gas Property | Dec 2024 |
| 5566 | OILCAN | Bradford County, PA | Gas Property | May 2025 |
| 5567 | OLCZAK | Greene County, PA | Gas Property | May 2025 |
| 5568 | OLD HOME MANOR | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 5569 | OLD MCDONALD FARM UNIT | Washington County, PA | Gas Property | May 2025 |
| 5570 | OLD TOWN BEAGLE CLUB | Clearfield County, PA | Gas Property | Dec 2024 |
| 5571 | OLER THOMPSON B | Clearfield County, PA | Gas Property | Dec 2024 |
| 5572 | OLEXA | Fayette County, PA | Oil & Gas Property | May 2025 |
| 5573 | OLGA H WEBER | Jefferson County, PA | Gas Property | Dec 2024 |
| 5574 | OLIVE M MARBURGER LIVING TRUST | Butler County, PA | Oil & Gas Property | Apr 2025 |
| 5575 | OLIVER | Fayette County, PA | Gas Property | Dec 2024 |
| 5576 | OLIVER | Allegheny County, PA | Gas Property | May 2025 |
| 5577 | OLIVER | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5578 | OLIVER EAST MON23H1 | Allegheny County, PA | Gas Property | May 2025 |
| 5579 | OLIVER FARM WARRANT 4004 | McKean County, PA | Oil & Gas Property | Dec 2009 |
| 5580 | OLIVER UNIT | Susquehanna County, PA | Gas Property | May 2025 |
| 5581 | OLIVER W PROPER | Elk County, PA | Oil & Gas Property | Dec 2024 |
| 5582 | OLLIE MORRIS | Jefferson County, PA | Gas Property | Dec 2024 |
| 5583 | OLSON | Warren County, PA | Gas Property | Dec 2024 |
| 5584 | OLSON 02 101 0 | Tioga County, PA | Gas Property | May 2025 |
| 5585 | OLSON ROBERT & MARGARET 3864 | Jefferson County, PA | Gas Property | Dec 2024 |
| 5586 | OLSON UNIT | Venango County, PA | Gas Property | Dec 2024 |
| 5587 | OLYMPIC LAKE ESTATES 07 083 0 | Susquehanna County, PA | Gas Property | May 2025 |
| 5588 | OMR (02-188 | Tioga County, PA | Gas Property | May 2025 |
| 5589 | ONEIL | Warren County, PA | Oil Property | Dec 2024 |
| 5590 | ONEILL | Warren County, PA | Oil Property | Dec 2024 |
| 5591 | ONIFRO O | McKean County, PA | Oil & Gas Property | Dec 2005 |
| 5592 | OPACIC | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 5593 | ORENCHUK RUSSELL 11890 | Washington County, PA | Gas Property | May 2025 |
| 5594 | ORIN LEE NEAL | Jefferson County, PA | Gas Property | Dec 2024 |
| 5595 | ORIS | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5596 | ORIS M. SCHRECENGOST | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 5597 | ORLANDO HARMAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 5598 | ORLOSKY | Mercer County, PA | Gas Property | Dec 2024 |
| 5599 | ORMSBY DEVONIAN | McKean County, PA | Gas Property | Dec 1993 |
| 5600 | OROURKE 05 046 0 | Bradford County, PA | Gas Property | May 2025 |