| 501 | MARGARITA E UNIT | Robertson County, TX | Oil & Gas Property | Jan 2026 |
| 502 | MARGAY STATE 18 UNIT | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 503 | MARGIE | Harrison County, TX | Oil & Gas Property | Feb 2026 |
| 504 | MARGIE 9-4 | Martin County, TX | Oil & Gas Property | Feb 2026 |
| 505 | MARGO | Starr County, TX | Oil & Gas Property | Feb 2026 |
| 506 | MARGO R.E. EST | Starr County, TX | Oil & Gas Property | Feb 2026 |
| 507 | MARGO/PENA | Starr County, TX | Oil & Gas Property | Feb 2026 |
| 508 | MARGUERITE | Zavala County, TX | Oil & Gas Property | Feb 2026 |
| 509 | MARGUERITE CHISM | Shackelford County, TX | Oil & Gas Property | Feb 2026 |
| 510 | MARIA | Fayette County, TX | Oil & Gas Property | Feb 2026 |
| 511 | MARIA | Gaines County, TX | Oil Property | Feb 2026 |
| 512 | MARIA CUELLAR 1 | Zapata County, TX | Oil & Gas Property | Feb 2026 |
| 513 | MARIA LUISA | La Salle County, TX | Oil & Gas Property | Feb 2026 |
| 514 | MARIAN OSBORN | Roberts County, TX | Oil & Gas Property | Feb 2026 |
| 515 | MARIE | Montague County, TX | Oil & Gas Property | Feb 2026 |
| 516 | MARIE | Upton County, TX | Oil & Gas Property | Feb 2026 |
| 517 | MARIE | Martin County, TX | Oil & Gas Property | Feb 2026 |
| 518 | MARIE A | Dewitt County, TX | Oil & Gas Property | Feb 2026 |
| 519 | MARIE A - LANE A SA A 1H | Dewitt County, TX | Oil & Gas Property | Feb 2026 |
| 520 | MARIE FRANKI GU 1 | Nacogdoches County, TX | Oil & Gas Property | Feb 2026 |
| 521 | MARIE HALL 30 | Howard County, TX | Oil & Gas Property | Jul 2021 |
| 522 | MARIE TUCKER TRUST (SA) | Parker County, TX | Oil & Gas Property | Feb 2026 |
| 523 | MARIENFELD 13 | Martin County, TX | Oil & Gas Property | Feb 2026 |
| 524 | MARIETTA UNIT | Atascosa County, TX | Oil & Gas Property | Feb 2026 |
| 525 | MARIGLIANO | Schleicher County, TX | Oil & Gas Property | Feb 2026 |
| 526 | MARIINSKY STATE | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 527 | MARILYN | Wheeler County, TX | Oil & Gas Property | Feb 2026 |
| 528 | MARILYN | Grayson County, TX | Oil & Gas Property | Feb 2026 |
| 529 | MARINE CREEK | Tarrant County, TX | Oil & Gas Property | Feb 2026 |
| 530 | MARINE CREEK OF TEXAS | Tarrant County, TX | Oil & Gas Property | Feb 2026 |
| 531 | MARINER 57-2-31 | Reeves County, TX | Oil & Gas Property | Jan 2026 |
| 532 | MARINES L | Guadalupe County, TX | Oil & Gas Property | Feb 2026 |
| 533 | MARION | Midland County, TX | Oil & Gas Property | Feb 2026 |
| 534 | MARION & LA VERNIA JUNE FIMBEL | Victoria County, TX | Gas Property | Jan 2026 |
| 535 | MARION GREEN | Wise County, TX | Oil & Gas Property | Feb 2026 |
| 536 | MARION RAVENWOOD | Howard County, TX | Oil & Gas Property | Feb 2026 |
| 537 | MARION V. BENGE ESTATE A | Midland County, TX | Oil & Gas Property | Feb 2026 |
| 538 | MARION WEST | Midland County, TX | Oil & Gas Property | Feb 2026 |
| 539 | MARIPOSA FIELD GAS UNIT | Brooks County, TX | Oil & Gas Property | Feb 2026 |
| 540 | MARIS | Jones County, TX | Oil & Gas Property | Dec 2025 |
| 541 | MARISA | Van Zandt County, TX | Oil & Gas Property | Feb 2026 |
| 542 | MARJORIE | Upton County, TX | Oil & Gas Property | Feb 2026 |
| 543 | MARJORIE | Burleson County, TX | Oil & Gas Property | Jan 2026 |
| 544 | MARK | Gray County, TX | Oil & Gas Property | Feb 2026 |
| 545 | MARK & SANDRA | Zavala County, TX | Oil & Gas Property | Jan 2026 |
| 546 | MARK BROWN ALLOCATION | La Salle County, TX | Oil & Gas Property | Feb 2026 |
| 547 | MARKEY | Rusk County, TX | Oil & Gas Property | Feb 2026 |
| 548 | MARKEY GAS UNIT | Panola County, TX | Oil & Gas Property | Feb 2026 |
| 549 | MARKHAM | Gaines County, TX | Oil & Gas Property | Jan 2024 |
| 550 | MARKHAM | Wheeler County, TX | Oil & Gas Property | Feb 2026 |
| 551 | MARKLEY FANNIE | Lipscomb County, TX | Oil & Gas Property | Feb 2026 |
| 552 | MARKS | Jack County, TX | Oil & Gas Property | Feb 2026 |
| 553 | MARKS | Goliad County, TX | Oil & Gas Property | Oct 2017 |
| 554 | MARKS-POOVEY GAS UNIT 1 | Rusk County, TX | Oil & Gas Property | Feb 2026 |
| 555 | MARLA 10 | Atascosa County, TX | Oil & Gas Property | Feb 2026 |
| 556 | MARLENE LILI | Washington County, TX | Oil & Gas Property | Feb 2026 |
| 557 | MARLENE OLSON | Live Oak County, TX | Oil & Gas Property | Feb 2026 |
| 558 | MARLETT T. W | Wise County, TX | Oil & Gas Property | Feb 2026 |
| 559 | MARLEY | Crockett County, TX | Oil & Gas Property | Jan 2026 |
| 560 | MARLEY | Jack County, TX | Oil & Gas Property | Feb 2026 |
| 561 | MARLEY | Jack County, TX | Oil & Gas Property | Feb 2026 |
| 562 | MARLEY-FRANSSEN | Jack County, TX | Oil & Gas Property | Feb 2026 |
| 563 | MARLIN | Grimes County, TX | Oil & Gas Property | Sep 2025 |
| 564 | MARLIN | Brazos County, TX | Oil & Gas Property | Jan 2026 |
| 565 | MARLIN | La Salle County, TX | Oil & Gas Property | Feb 2026 |
| 566 | MARLIN 11S | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 567 | MARLIN 32 | Glasscock County, TX | Oil & Gas Property | Feb 2026 |
| 568 | MARLIN 47 | Glasscock County, TX | Oil & Gas Property | Feb 2026 |
| 569 | MARMACONDA STATE 2-5-14-17 | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 570 | MARMALARD | Reeves County, TX | Oil & Gas Property | Jan 2026 |
| 571 | MARMET | Ellis County, TX | Gas Property | Feb 2026 |
| 572 | MARMION-THORNHILL HC | Dimmit County, TX | Oil & Gas Property | Feb 2026 |
| 573 | MARMO UNIT | Lee County, TX | Oil & Gas Property | Feb 2026 |
| 574 | MARMOT 55-14 UNIT | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 575 | MARNI | Moore County, TX | Oil & Gas Property | Feb 2026 |
| 576 | MAROLYN | Crockett County, TX | Oil & Gas Property | Feb 2026 |
| 577 | MARON UNIT A | Dewitt County, TX | Oil & Gas Property | Feb 2026 |
| 578 | MARON-RESP-VASB ULW | Dewitt County, TX | Oil & Gas Property | Feb 2026 |
| 579 | MARON-VASB USW B | Dewitt County, TX | Oil & Gas Property | Feb 2026 |
| 580 | MAROON BELLS 13-14 UNIT | Reeves County, TX | Oil & Gas Property | Feb 2026 |
| 581 | MAROONER | Winkler County, TX | Oil & Gas Property | Feb 2026 |
| 582 | MARPAT | Bexar County, TX | Oil Property | Feb 2026 |
| 583 | MARQUES | Throckmorton County, TX | Oil & Gas Property | Jan 2026 |
| 584 | MARQUETTE | San Augustine County, TX | Oil & Gas Property | Feb 2026 |
| 585 | MARQUETTE-WEST IRONOSA | San Augustine County, TX | Gas Property | Feb 2026 |
| 586 | MARQUIS | Lee County, TX | Oil & Gas Property | Dec 2025 |
| 587 | MARR | Dawson County, TX | Oil & Gas Property | Jan 2026 |
| 588 | MARR | Lubbock County, TX | Oil & Gas Property | Feb 2026 |
| 589 | MARR, C.C | Scurry County, TX | Oil & Gas Property | Feb 2026 |
| 590 | MARRIOTT | Wichita County, TX | Oil & Gas Property | Feb 2026 |
| 591 | MARROW STATE | Ward County, TX | Oil & Gas Property | Feb 2026 |
| 592 | MARRS | Throckmorton County, TX | Oil & Gas Property | Feb 2026 |
| 593 | MARRS | Dimmit County, TX | Oil & Gas Property | Feb 2026 |
| 594 | MARRS BAUERLE UNIT | Frio County, TX | Oil & Gas Property | Feb 2026 |
| 595 | MARRS MCLEAN | Jim Hogg County, TX | Oil & Gas Property | Jan 2023 |
| 596 | MARRS MCLEAN | Webb County, TX | Oil & Gas Property | Feb 2026 |
| 597 | MARRS MCLEAN | Jim Hogg County, TX | Oil & Gas Property | Feb 2026 |
| 598 | MARRS MCLEAN | Frio County, TX | Oil & Gas Property | Feb 2026 |
| 599 | MARRS MCLEAN | Frio County, TX | Oil & Gas Property | Feb 2026 |
| 600 | MARRS MCLEAN | Galveston County, TX | Oil Property | Feb 2026 |