| 501 | MCDONALD HASLET UNIT 2H | Tarrant County, TX | Gas Property | Nov 2025 |
| 502 | MCKEE S PORT UNIT 1D | Tarrant County, TX | Gas Property | Nov 2025 |
| 503 | MCKINNEY WILLIAM | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 504 | MCMAHON | Tarrant County, TX | Gas Property | Nov 2025 |
| 505 | MCWHORTER 3H | Tarrant County, TX | Gas Property | Nov 2025 |
| 506 | MEACHAM | Tarrant County, TX | Gas Property | Nov 2025 |
| 507 | MEACHAM NORTH UNIT Q | Tarrant County, TX | Gas Property | Nov 2025 |
| 508 | MEACHAM SOUTH UNIT B | Tarrant County, TX | Gas Property | Nov 2025 |
| 509 | MEEKINS-MAYS | Tarrant County, TX | Gas Property | Nov 2025 |
| 510 | MEGALODON 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 511 | MERCADO | Tarrant County, TX | Gas Property | Nov 2025 |
| 512 | MERCANTILE | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 513 | MERCER RANCH | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 514 | MEREKEN | Tarrant County, TX | Gas Property | Nov 2025 |
| 515 | MIDWAY UNIT 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 516 | MILNE CARROLL UNIT A | Tarrant County, TX | Gas Property | Nov 2025 |
| 517 | MINERALS W.S | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 518 | MINK TRT 2H | Tarrant County, TX | Gas Property | Nov 2025 |
| 519 | MIRA LAGOS | Tarrant County, TX | Gas Property | Nov 2025 |
| 520 | MIRA VISTA UNIT A | Tarrant County, TX | Gas Property | Nov 2025 |
| 521 | MIRA VISTA UNIT C | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 522 | MISSION | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 523 | MITCHELL | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 524 | MOHO | Tarrant County, TX | Gas Property | Nov 2025 |
| 525 | MOORE | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 526 | MORITZ | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 527 | MORRIS FOWLER 1H | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 528 | MORROW STEVENS | Tarrant County, TX | Gas Property | Nov 2025 |
| 529 | MORTIMER | Tarrant County, TX | Gas Property | Nov 2025 |
| 530 | MOSS | Tarrant County, TX | Gas Property | Nov 2025 |
| 531 | MOUNT TABOR | Tarrant County, TX | Gas Property | Nov 2025 |
| 532 | MOUNT TABOR BRAYLON MIPA UNIT 3H | Tarrant County, TX | Gas Property | Nov 2025 |
| 533 | MOUSER UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 534 | MS SOUTH | Tarrant County, TX | Gas Property | Nov 2025 |
| 535 | MS WEST | Tarrant County, TX | Gas Property | Nov 2025 |
| 536 | MT ACE UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 537 | MT BIRDIE UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 538 | MT. OLIVET | Tarrant County, TX | Gas Property | Apr 2023 |
| 539 | MULLIGAN | Tarrant County, TX | Gas Property | Nov 2025 |
| 540 | MURPHY A UNIT 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 541 | MURRIN BEAR CREEK | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 542 | MUSTANG 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 543 | N SID RICHARDSON | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 544 | NANCE | Tarrant County, TX | Gas Property | Nov 2025 |
| 545 | NANCE SONNY UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 546 | NEILL WAYNE | Tarrant County, TX | Gas Property | Nov 2025 |
| 547 | NEW DAWN UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 548 | NEWELL | Tarrant County, TX | Gas Property | May 2025 |
| 549 | NOLAND UNIT 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 550 | NORMAN | Tarrant County, TX | Gas Property | Nov 2025 |
| 551 | NORMANDALE | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 552 | NOVIKOFF | Tarrant County, TX | Gas Property | Nov 2025 |
| 553 | NRH 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 554 | NRH 5H | Tarrant County, TX | Gas Property | Nov 2025 |
| 555 | NUGENT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 556 | NUGENT-BEAR TRT 4H | Tarrant County, TX | Gas Property | Nov 2025 |
| 557 | NUGENT-WHITMAN 5H | Tarrant County, TX | Gas Property | Nov 2025 |
| 558 | NW MERCADO | Tarrant County, TX | Gas Property | Jun 2025 |
| 559 | NW TARRANT PARTNERS | Tarrant County, TX | Gas Property | Nov 2025 |
| 560 | OAK GROVE UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 561 | OAKMONT 1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 562 | OAKWOOD | Tarrant County, TX | Gas Property | Nov 2025 |
| 563 | OK CORRAL | Tarrant County, TX | Gas Property | Nov 2025 |
| 564 | OLCOTT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 565 | OLCOTT NORTH A UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 566 | OLD WEATHERFORD | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 567 | OLE GIESER UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 568 | OLIVER | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 569 | OSLER | Tarrant County, TX | Gas Property | Nov 2025 |
| 570 | OSPREY | Tarrant County, TX | Gas Property | Nov 2025 |
| 571 | PACE J C UNIT A1H | Tarrant County, TX | Gas Property | Nov 2025 |
| 572 | PACIFIC UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 573 | PAGE STREET | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 574 | PALOS VERDES | Tarrant County, TX | Gas Property | Nov 2025 |
| 575 | PANAGOPOULOS UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 576 | PANTEGO | Tarrant County, TX | Gas Property | Nov 2025 |
| 577 | PANTHER HEIGHTS | Tarrant County, TX | Gas Property | Nov 2025 |
| 578 | PAPPAJOHN | Tarrant County, TX | Gas Property | Nov 2025 |
| 579 | PAR 2H | Tarrant County, TX | Gas Property | Nov 2025 |
| 580 | PARROT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 581 | PARROT RIVERBEND UNIT E | Tarrant County, TX | Gas Property | Nov 2025 |
| 582 | PAYTON JAMES 1 | Tarrant County, TX | Gas Property | Nov 2025 |
| 583 | PEACEFUL VALLEY 1H | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 584 | PEARCE | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 585 | PEARL FEDERAL | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 586 | PEARL RANCH | Tarrant County, TX | Oil & Gas Property | Nov 2025 |
| 587 | PEARSON | Tarrant County, TX | Gas Property | Jun 2025 |
| 588 | PEDEN UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 589 | PELICAN BAY | Tarrant County, TX | Gas Property | Nov 2025 |
| 590 | PENSKE | Tarrant County, TX | Gas Property | Jul 2019 |
| 591 | PERR A UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 592 | PERR B UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 593 | PERRYMAN | Tarrant County, TX | Gas Property | Nov 2025 |
| 594 | PETRIE UNIT | Tarrant County, TX | Gas Property | Nov 2025 |
| 595 | PETRUS | Tarrant County, TX | Gas Property | Nov 2025 |
| 596 | PHASE III - MCKINNEY (SA) | Tarrant County, TX | Gas Property | Nov 2025 |
| 597 | PHASE III INVESTMENTS | Tarrant County, TX | Gas Property | Nov 2025 |
| 598 | PHASE III-TADLOCK (SA) 1 | Tarrant County, TX | Gas Property | Nov 2025 |
| 599 | PHOENIX | Tarrant County, TX | Gas Property | Nov 2025 |
| 600 | PIGG UNIT | Tarrant County, TX | Oil & Gas Property | Nov 2025 |