| 501 | MARIA CUELLAR 1 | Zapata County, TX | Oil & Gas Property | Mar 2025 |
| 502 | MARIA LUISA | La Salle County, TX | Oil & Gas Property | Mar 2025 |
| 503 | MARIAN OSBORN | Roberts County, TX | Oil & Gas Property | Mar 2025 |
| 504 | MARIE | Montague County, TX | Oil & Gas Property | Mar 2025 |
| 505 | MARIE | Upton County, TX | Oil & Gas Property | Mar 2025 |
| 506 | MARIE | Martin County, TX | Oil & Gas Property | Mar 2025 |
| 507 | MARIE A | Dewitt County, TX | Oil & Gas Property | Mar 2025 |
| 508 | MARIE FRANKI GU 1 | Nacogdoches County, TX | Oil & Gas Property | Feb 2025 |
| 509 | MARIE HALL 30 | Howard County, TX | Oil & Gas Property | Jul 2021 |
| 510 | MARIE TUCKER TRUST (SA) | Parker County, TX | Oil & Gas Property | Mar 2025 |
| 511 | MARIENA | Coke County, TX | Oil & Gas Property | Feb 2023 |
| 512 | MARIENFELD 13 | Martin County, TX | Oil & Gas Property | Mar 2025 |
| 513 | MARIETTA UNIT | Atascosa County, TX | Oil & Gas Property | Mar 2025 |
| 514 | MARIGLIANO | Schleicher County, TX | Oil & Gas Property | Feb 2025 |
| 515 | MARIINSKY STATE | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 516 | MARILYN | Wheeler County, TX | Oil & Gas Property | Mar 2025 |
| 517 | MARILYN | Grayson County, TX | Oil & Gas Property | Mar 2025 |
| 518 | MARINE CREEK | Tarrant County, TX | Oil & Gas Property | Mar 2025 |
| 519 | MARINE CREEK OF TEXAS | Tarrant County, TX | Oil & Gas Property | Mar 2025 |
| 520 | MARINER 57-2-31 | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 521 | MARINES L | Guadalupe County, TX | Oil & Gas Property | Mar 2025 |
| 522 | MARION | Midland County, TX | Oil & Gas Property | Mar 2025 |
| 523 | MARION & LA VERNIA JUNE FIMBEL | Victoria County, TX | Gas Property | Feb 2025 |
| 524 | MARION GREEN | Wise County, TX | Oil & Gas Property | Mar 2025 |
| 525 | MARION J. MALAZZO | Burleson County, TX | Oil & Gas Property | Feb 2025 |
| 526 | MARION RAVENWOOD | Howard County, TX | Oil & Gas Property | Mar 2025 |
| 527 | MARION V. BENGE ESTATE A | Midland County, TX | Oil & Gas Property | Mar 2025 |
| 528 | MARIPOSA FIELD GAS UNIT | Brooks County, TX | Oil & Gas Property | Mar 2025 |
| 529 | MARIS | Jones County, TX | Oil & Gas Property | Mar 2024 |
| 530 | MARISA | Van Zandt County, TX | Oil & Gas Property | Mar 2025 |
| 531 | MARJORIE | Upton County, TX | Oil & Gas Property | Mar 2025 |
| 532 | MARJORIE | Burleson County, TX | Oil & Gas Property | Feb 2025 |
| 533 | MARK | Gray County, TX | Oil & Gas Property | Mar 2025 |
| 534 | MARK & SANDRA | Zavala County, TX | Oil & Gas Property | Feb 2025 |
| 535 | MARK BROWN ALLOCATION | La Salle County, TX | Oil & Gas Property | Feb 2025 |
| 536 | MARKEY | Rusk County, TX | Oil & Gas Property | Mar 2025 |
| 537 | MARKEY GAS UNIT | Panola County, TX | Oil & Gas Property | Mar 2025 |
| 538 | MARKHAM | Gaines County, TX | Oil & Gas Property | Jan 2024 |
| 539 | MARKHAM | Wheeler County, TX | Oil & Gas Property | Mar 2025 |
| 540 | MARKLEY FANNIE | Lipscomb County, TX | Oil & Gas Property | Mar 2025 |
| 541 | MARKS | Jack County, TX | Oil & Gas Property | Mar 2025 |
| 542 | MARKS | Goliad County, TX | Oil & Gas Property | Oct 2017 |
| 543 | MARKS-POOVEY GAS UNIT 1 | Rusk County, TX | Oil & Gas Property | Feb 2025 |
| 544 | MARLA 10 | Atascosa County, TX | Oil & Gas Property | Mar 2025 |
| 545 | MARLENE LILI | Washington County, TX | Oil & Gas Property | Mar 2025 |
| 546 | MARLENE OLSON | Live Oak County, TX | Oil & Gas Property | Mar 2025 |
| 547 | MARLETT T. W | Wise County, TX | Oil & Gas Property | Mar 2025 |
| 548 | MARLEY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 549 | MARLEY | Jack County, TX | Oil & Gas Property | Mar 2025 |
| 550 | MARLEY | Jack County, TX | Oil & Gas Property | Nov 2024 |
| 551 | MARLEY-FRANSSEN | Jack County, TX | Oil & Gas Property | Mar 2025 |
| 552 | MARLIN | Grimes County, TX | Oil & Gas Property | Jan 2025 |
| 553 | MARLIN | Brazos County, TX | Oil & Gas Property | Feb 2025 |
| 554 | MARLIN | La Salle County, TX | Oil & Gas Property | Mar 2025 |
| 555 | MARLIN 11S | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 556 | MARLIN 47 | Glasscock County, TX | Oil & Gas Property | Mar 2025 |
| 557 | MARMALARD | Reeves County, TX | Oil & Gas Property | Feb 2025 |
| 558 | MARMET | Ellis County, TX | Gas Property | Mar 2025 |
| 559 | MARMION-THORNHILL HC | Dimmit County, TX | Oil & Gas Property | Mar 2025 |
| 560 | MARMO UNIT | Lee County, TX | Oil & Gas Property | Mar 2025 |
| 561 | MARMOT 55-14 UNIT | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 562 | MARNI | Moore County, TX | Oil & Gas Property | Mar 2025 |
| 563 | MAROLYN | Crockett County, TX | Oil & Gas Property | Mar 2025 |
| 564 | MARON UNIT A | Dewitt County, TX | Oil & Gas Property | Mar 2025 |
| 565 | MARON-RESP-VASB ULW 1 | Dewitt County, TX | Oil & Gas Property | Mar 2025 |
| 566 | MARON-VASB USW B 1 | Dewitt County, TX | Oil & Gas Property | Mar 2025 |
| 567 | MAROON BELLS 13-14 UNIT | Reeves County, TX | Oil & Gas Property | Mar 2025 |
| 568 | MAROONER | Winkler County, TX | Oil & Gas Property | Mar 2025 |
| 569 | MARPAT | Bexar County, TX | Oil Property | Mar 2025 |
| 570 | MARQUES | Throckmorton County, TX | Oil & Gas Property | Mar 2025 |
| 571 | MARQUETTE 1H | San Augustine County, TX | Oil & Gas Property | Mar 2025 |
| 572 | MARQUIS | Lee County, TX | Oil & Gas Property | Mar 2025 |
| 573 | MARR | Dawson County, TX | Oil & Gas Property | Mar 2025 |
| 574 | MARR | Lubbock County, TX | Oil & Gas Property | Mar 2025 |
| 575 | MARR, C.C | Scurry County, TX | Oil & Gas Property | Mar 2025 |
| 576 | MARRIOTT | Wichita County, TX | Oil & Gas Property | Feb 2025 |
| 577 | MARROW-STATE | Ward County, TX | Oil & Gas Property | Mar 2025 |
| 578 | MARRS | Throckmorton County, TX | Oil & Gas Property | Mar 2025 |
| 579 | MARRS | Dimmit County, TX | Oil & Gas Property | Mar 2025 |
| 580 | MARRS BAUERLE UNIT | Frio County, TX | Oil & Gas Property | Mar 2025 |
| 581 | MARRS MCLEAN | Jim Hogg County, TX | Oil & Gas Property | Jan 2023 |
| 582 | MARRS MCLEAN | Webb County, TX | Oil & Gas Property | Mar 2025 |
| 583 | MARRS MCLEAN | Jim Hogg County, TX | Oil & Gas Property | Feb 2025 |
| 584 | MARRS MCLEAN | Frio County, TX | Oil & Gas Property | Mar 2025 |
| 585 | MARRS MCLEAN | Frio County, TX | Oil & Gas Property | Mar 2025 |
| 586 | MARRS MCLEAN | Galveston County, TX | Oil Property | Mar 2025 |
| 587 | MARRS-MCLEAN | Starr County, TX | Oil & Gas Property | Mar 2025 |
| 588 | MARS | Gaines County, TX | Oil & Gas Property | Mar 2024 |
| 589 | MARS UNIT | Atascosa County, TX | Oil & Gas Property | Mar 2025 |
| 590 | MARSCHALL HELEN U. 2 | Pecos County, TX | Gas Property | Mar 2025 |
| 591 | MARSH | Burleson County, TX | Oil & Gas Property | Feb 2025 |
| 592 | MARSH 81-TTT-B33 WF SA | Loving County, TX | Oil & Gas Property | Mar 2025 |
| 593 | MARSH GAS UNIT | Harrison County, TX | Oil & Gas Property | Mar 2025 |
| 594 | MARSH GAS UNIT | Polk County, TX | Oil & Gas Property | Mar 2025 |
| 595 | MARSH KB | Harrison County, TX | Oil & Gas Property | Mar 2025 |
| 596 | MARSH RANCH | Potter County, TX | Oil & Gas Property | Dec 2024 |
| 597 | MARSH S. 1 | Moore County, TX | Gas Property | Mar 2025 |
| 598 | MARSH T.D | Upshur County, TX | Oil & Gas Property | Mar 2025 |
| 599 | MARSH TD-ARRINGTON (AW) 1H | Upshur County, TX | Oil & Gas Property | Mar 2025 |
| 600 | MARSH TD-COLLIE (AW) 1H | Upshur County, TX | Oil & Gas Property | Mar 2025 |