| 501 | OLE GIESER UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 502 | OLIVER | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 503 | OSLER | Tarrant County, TX | Gas Property | Sep 2024 |
| 504 | OSPREY | Tarrant County, TX | Gas Property | Sep 2024 |
| 505 | PACIFIC UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 506 | PAGE STREET | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 507 | PALOS VERDES | Tarrant County, TX | Gas Property | Sep 2024 |
| 508 | PANAGOPOULOS UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 509 | PANTEGO | Tarrant County, TX | Gas Property | Sep 2024 |
| 510 | PANTHER HEIGHTS | Tarrant County, TX | Gas Property | Sep 2024 |
| 511 | PAPPAJOHN | Tarrant County, TX | Gas Property | Sep 2024 |
| 512 | PARROT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 513 | PARROT RIVERBEND UNIT E | Tarrant County, TX | Gas Property | Sep 2024 |
| 514 | PEARCE | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 515 | PEARL FEDERAL | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 516 | PEARL RANCH | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 517 | PEARSON | Tarrant County, TX | Gas Property | Sep 2024 |
| 518 | PEDEN UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 519 | PELICAN BAY | Tarrant County, TX | Gas Property | Sep 2024 |
| 520 | PENSKE | Tarrant County, TX | Gas Property | Jul 2019 |
| 521 | PERR A UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 522 | PERR B UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 523 | PERRYMAN | Tarrant County, TX | Gas Property | Sep 2024 |
| 524 | PETRIE UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 525 | PETRUS | Tarrant County, TX | Gas Property | Sep 2024 |
| 526 | PHASE III - MCKINNEY (SA) | Tarrant County, TX | Gas Property | Sep 2024 |
| 527 | PHASE III INVESTMENTS | Tarrant County, TX | Gas Property | Sep 2024 |
| 528 | PHASE III-TADLOCK (SA) 1 | Tarrant County, TX | Gas Property | Sep 2024 |
| 529 | PHOENIX | Tarrant County, TX | Gas Property | Sep 2024 |
| 530 | PIGG UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 531 | PLANET EARTH MIPA 3H | Tarrant County, TX | Gas Property | Sep 2024 |
| 532 | PLANET MARS MIPA 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 533 | PLANET TRT | Tarrant County, TX | Gas Property | Jan 2023 |
| 534 | PLANET ZERO MIPA 4H | Tarrant County, TX | Gas Property | Sep 2024 |
| 535 | PLEASANT RIDGE | Tarrant County, TX | Gas Property | Sep 2024 |
| 536 | POLK SALLY ANNA UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 537 | POLY | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 538 | POLYHAWK B VOL MIPA 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 539 | POLYHAWK MIPA 7H | Tarrant County, TX | Gas Property | Sep 2024 |
| 540 | PORTER ET AL | Tarrant County, TX | Oil & Gas Property | Sep 2023 |
| 541 | POTTER-PURCELL | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 542 | POWELL-COZART UN | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 543 | PRICE | Tarrant County, TX | Gas Property | Sep 2024 |
| 544 | PRIME RAIL UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 545 | PRINCETON 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 546 | PROFESSOR UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 547 | PUMPKIN | Tarrant County, TX | Gas Property | Sep 2017 |
| 548 | PURSELLEY UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 549 | PVI UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 550 | PYRAMID ACRES UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 551 | QUANT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 552 | QUARRY | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 553 | R-SO 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 554 | RAFAEL UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 555 | RAILHEAD | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 556 | RALL RANCH | Tarrant County, TX | Gas Property | Sep 2024 |
| 557 | RAMBO | Tarrant County, TX | Gas Property | Sep 2024 |
| 558 | RAMEY 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 559 | RAWDON GREGORY | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 560 | REED MITCHELL UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 561 | REGAN ARLINGTON A UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 562 | REGENCY | Tarrant County, TX | Gas Property | Nov 2016 |
| 563 | REMINGTON STATION UNIT | Tarrant County, TX | Gas Property | Aug 2024 |
| 564 | RENFRO | Tarrant County, TX | Gas Property | Sep 2024 |
| 565 | RENZO | Tarrant County, TX | Gas Property | Aug 2022 |
| 566 | REVEILLE | Tarrant County, TX | Gas Property | Feb 2016 |
| 567 | RICE LOH | Tarrant County, TX | Gas Property | Sep 2024 |
| 568 | RICHARDSON | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 569 | RICHARDSON VIRGINIA UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 570 | RICHLAND HILLS | Tarrant County, TX | Gas Property | Sep 2024 |
| 571 | RIDGLEA | Tarrant County, TX | Gas Property | Sep 2024 |
| 572 | RIDGLEA TRIANGLE | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 573 | RIDGMAR | Tarrant County, TX | Gas Property | Sep 2024 |
| 574 | RITCHIE | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 575 | RIVERCREST | Tarrant County, TX | Gas Property | Sep 2024 |
| 576 | RIVERSIDE 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 577 | RLB 3H | Tarrant County, TX | Gas Property | Sep 2024 |
| 578 | RLB 5H | Tarrant County, TX | Gas Property | Sep 2024 |
| 579 | ROBINSON BARNEY | Tarrant County, TX | Gas Property | Sep 2024 |
| 580 | ROCHIN UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 581 | ROCK CREEK | Tarrant County, TX | Gas Property | Sep 2024 |
| 582 | ROCKERFELLOW UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 583 | ROCKING HORSE | Tarrant County, TX | Gas Property | Sep 2024 |
| 584 | ROCKING HORSE WEST WING MIPA | Tarrant County, TX | Gas Property | Sep 2024 |
| 585 | ROCKY CREEK RANCH | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 586 | ROCKY CRK RCH-LONESOME DOVE (SA) | Tarrant County, TX | Oil & Gas Property | Nov 2019 |
| 587 | RODEO GUSHER | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 588 | ROGERS | Tarrant County, TX | Gas Property | Sep 2024 |
| 589 | ROLLING HILLS | Tarrant County, TX | Gas Property | Sep 2024 |
| 590 | ROSE A UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 591 | ROSE A-ROSE B UNIT SA 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 592 | ROSE B UNIT | Tarrant County, TX | Gas Property | Sep 2024 |
| 593 | ROSE B-ROSE C UNIT SA 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 594 | ROSE C UNIT 1H | Tarrant County, TX | Gas Property | Sep 2024 |
| 595 | ROSEDALE | Tarrant County, TX | Oil & Gas Property | Aug 2024 |
| 596 | ROSEDALE NORTH MIPA | Tarrant County, TX | Oil & Gas Property | Aug 2024 |
| 597 | ROSEDALE S | Tarrant County, TX | Gas Property | Aug 2024 |
| 598 | ROSEN | Tarrant County, TX | Gas Property | Jun 2011 |
| 599 | ROWAN B UNIT | Tarrant County, TX | Oil & Gas Property | Sep 2024 |
| 600 | RPV HAWK B MIPA | Tarrant County, TX | Gas Property | Sep 2024 |