| 501 | MOUSER UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 502 | MS SOUTH | Tarrant County, TX | Gas Property | Sep 2025 |
| 503 | MS WEST | Tarrant County, TX | Gas Property | Sep 2025 |
| 504 | MT ACE UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 505 | MT BIRDIE UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 506 | MT. OLIVET | Tarrant County, TX | Gas Property | Apr 2023 |
| 507 | MULLIGAN | Tarrant County, TX | Gas Property | Sep 2025 |
| 508 | MURRIN BEAR CREEK | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 509 | MUSTANG 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 510 | N SID RICHARDSON | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 511 | NANCE | Tarrant County, TX | Gas Property | Sep 2025 |
| 512 | NANCE SONNY UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 513 | NEILL WAYNE | Tarrant County, TX | Gas Property | Sep 2025 |
| 514 | NEW DAWN UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 515 | NEWELL | Tarrant County, TX | Gas Property | May 2025 |
| 516 | NOLAND UNIT 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 517 | NORMANDALE | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 518 | NOVIKOFF | Tarrant County, TX | Gas Property | Sep 2025 |
| 519 | NRH 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 520 | NRH 5H | Tarrant County, TX | Gas Property | Sep 2025 |
| 521 | NUGENT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 522 | NUGENT-BEAR TRT 4H | Tarrant County, TX | Gas Property | Sep 2025 |
| 523 | NUGENT-WHITMAN 5H | Tarrant County, TX | Gas Property | Sep 2025 |
| 524 | NW MERCADO | Tarrant County, TX | Gas Property | May 2025 |
| 525 | NW TARRANT PARTNERS | Tarrant County, TX | Gas Property | Sep 2025 |
| 526 | OAK GROVE UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 527 | OAKMONT 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 528 | OAKWOOD | Tarrant County, TX | Gas Property | Sep 2025 |
| 529 | OK CORRAL | Tarrant County, TX | Gas Property | Sep 2025 |
| 530 | OLCOTT | Tarrant County, TX | Oil & Gas Property | Aug 2025 |
| 531 | OLCOTT NORTH A UNIT | Tarrant County, TX | Oil & Gas Property | Aug 2025 |
| 532 | OLD WEATHERFORD | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 533 | OLE GIESER UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 534 | OLIVER | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 535 | OSLER | Tarrant County, TX | Gas Property | Sep 2025 |
| 536 | OSPREY | Tarrant County, TX | Gas Property | Sep 2025 |
| 537 | PACE J C UNIT A1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 538 | PACIFIC UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 539 | PAGE STREET | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 540 | PALOS VERDES | Tarrant County, TX | Gas Property | Sep 2025 |
| 541 | PANAGOPOULOS UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 542 | PANTEGO | Tarrant County, TX | Gas Property | Sep 2025 |
| 543 | PANTHER HEIGHTS | Tarrant County, TX | Gas Property | Sep 2025 |
| 544 | PAPPAJOHN | Tarrant County, TX | Gas Property | Sep 2025 |
| 545 | PARROT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 546 | PARROT RIVERBEND UNIT E | Tarrant County, TX | Gas Property | Sep 2025 |
| 547 | PAYTON JAMES 1 | Tarrant County, TX | Gas Property | Sep 2025 |
| 548 | PEARCE | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 549 | PEARL FEDERAL | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 550 | PEARL RANCH | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 551 | PEARSON | Tarrant County, TX | Gas Property | Jun 2025 |
| 552 | PEDEN UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 553 | PELICAN BAY | Tarrant County, TX | Gas Property | Sep 2025 |
| 554 | PENSKE | Tarrant County, TX | Gas Property | Jul 2019 |
| 555 | PERR A UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 556 | PERR B UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 557 | PERRYMAN | Tarrant County, TX | Gas Property | Sep 2025 |
| 558 | PETRIE UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 559 | PETRUS | Tarrant County, TX | Gas Property | Sep 2025 |
| 560 | PHASE III - MCKINNEY (SA) | Tarrant County, TX | Gas Property | Sep 2025 |
| 561 | PHASE III INVESTMENTS | Tarrant County, TX | Gas Property | Sep 2025 |
| 562 | PHASE III-TADLOCK (SA) 1 | Tarrant County, TX | Gas Property | Sep 2025 |
| 563 | PHOENIX | Tarrant County, TX | Gas Property | Sep 2025 |
| 564 | PIGG UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 565 | PLANET EARTH MIPA 3H | Tarrant County, TX | Gas Property | Sep 2025 |
| 566 | PLANET MARS MIPA 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 567 | PLANET TRT | Tarrant County, TX | Gas Property | Sep 2025 |
| 568 | PLANET ZERO MIPA 4H | Tarrant County, TX | Gas Property | Sep 2025 |
| 569 | PLEASANT RIDGE | Tarrant County, TX | Gas Property | Sep 2025 |
| 570 | POLK SALLY ANNA UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 571 | POLY | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 572 | POLYHAWK B VOL MIPA 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 573 | POLYHAWK MIPA 7H | Tarrant County, TX | Gas Property | Sep 2025 |
| 574 | PORTER ET AL | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 575 | POTTER-PURCELL | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 576 | POWELL-COZART UN | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 577 | PRICE | Tarrant County, TX | Gas Property | Sep 2025 |
| 578 | PRIME RAIL UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 579 | PRINCETON 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 580 | PROFESSOR UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 581 | PUMPKIN | Tarrant County, TX | Gas Property | Sep 2017 |
| 582 | PURSELLEY UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 583 | PVI UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 584 | PYRAMID ACRES UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 585 | QUANT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 586 | QUANT-FORRESTER UNIT SA 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 587 | QUARRY | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 588 | R-SO 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 589 | RAFAEL UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 590 | RAILHEAD | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 591 | RAILHEAD SOUTH UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 592 | RALL RANCH | Tarrant County, TX | Gas Property | Sep 2025 |
| 593 | RAM UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 594 | RAMBO | Tarrant County, TX | Gas Property | Sep 2025 |
| 595 | RAMEY 1H | Tarrant County, TX | Gas Property | Sep 2025 |
| 596 | RAWDON GREGORY | Tarrant County, TX | Oil & Gas Property | Sep 2025 |
| 597 | REED MITCHELL UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 598 | REGAN ARLINGTON A UNIT | Tarrant County, TX | Gas Property | Sep 2025 |
| 599 | REGENCY | Tarrant County, TX | Gas Property | Nov 2016 |
| 600 | REMINGTON STATION UNIT | Tarrant County, TX | Gas Property | Sep 2025 |