| 501 | DCCO 3 - PENNINGTON GU A | Denton County, TX | Gas Property | Apr 2025 |
| 502 | DCCO 3 - VELTEN (SA) 1H | Denton County, TX | Gas Property | Apr 2025 |
| 503 | DCCO 3- S.H. GRIFFIN ESTATE | Denton County, TX | Gas Property | Apr 2025 |
| 504 | DCCO 3-GRIFFIN S.H. ESTATE | Denton County, TX | Gas Property | Apr 2025 |
| 505 | DCCO 4 - ANNA MCCURDY GAS UNIT | Denton County, TX | Gas Property | Apr 2025 |
| 506 | DCCO 4 - GRAHAM | Denton County, TX | Gas Property | Apr 2025 |
| 507 | DCCO 4 - JAMES FRAZIER GU | Denton County, TX | Gas Property | Apr 2025 |
| 508 | DCCO 4- WCCO 1 | Denton County, TX | Gas Property | Apr 2025 |
| 509 | DCCO 4-DCCO 2-SHOOP C (SA) | Denton County, TX | Gas Property | Apr 2025 |
| 510 | DCR 10 | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 511 | DCR 152 | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 512 | DCR 196 NCT-12 | Duval County, TX | Oil & Gas Property | Jun 2020 |
| 513 | DCR 2 | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 514 | DCR 262N | Duval County, TX | Oil & Gas Property | Jul 2021 |
| 515 | DCR 295 S | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 516 | DCR 5 | Duval County, TX | Oil & Gas Property | Mar 2021 |
| 517 | DCR 5 | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 518 | DCR 7 | Duval County, TX | Oil & Gas Property | Oct 2019 |
| 519 | DCR 8 | Duval County, TX | Oil & Gas Property | Oct 2019 |
| 520 | DCR-S | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 521 | DCR-STATE | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 522 | DCRC | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 523 | DCRC | Webb County, TX | Oil & Gas Property | Jan 2001 |
| 524 | DCRC | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 525 | DCRC | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 526 | DCRC MF NCT | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 527 | DCRC MF NCT | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 528 | DCRC MF NCT-1 | Duval County, TX | Oil & Gas Property | Dec 2012 |
| 529 | DCRC-STATE | Duval County, TX | Oil & Gas Property | Oct 2019 |
| 530 | DCRC-TENDIDO G | Duval County, TX | Oil & Gas Property | Apr 2025 |
| 531 | DD PAYNE | Roberts County, TX | Oil & Gas Property | Apr 2025 |
| 532 | DE AUSTIN-CASTILLO G | Hidalgo County, TX | Oil & Gas Property | Apr 2025 |
| 533 | DE BARB | Zapata County, TX | Oil & Gas Property | Apr 2025 |
| 534 | DE BENAVIDES ROSA | Webb County, TX | Oil & Gas Property | Mar 2025 |
| 535 | DE BENAVIDES, ROS | Webb County, TX | Oil & Gas Property | Apr 2025 |
| 536 | DE DIOS JUAN | Zapata County, TX | Oil & Gas Property | Apr 2025 |
| 537 | DE FLORES M | Starr County, TX | Oil & Gas Property | Apr 2025 |
| 538 | DE GARCIA B.G | Starr County, TX | Oil & Gas Property | Apr 2025 |
| 539 | DE GARZA | Starr County, TX | Oil & Gas Property | Mar 2021 |
| 540 | DE GRACIA | Zapata County, TX | Oil & Gas Property | Apr 2025 |
| 541 | DE LA CRUZ | Jones County, TX | Oil & Gas Property | Mar 2025 |
| 542 | DE LA FUENTE | Duval County, TX | Oil & Gas Property | Sep 2022 |
| 543 | DE LA GARZA | La Salle County, TX | Oil & Gas Property | Mar 2025 |
| 544 | DE LA GARZA | Webb County, TX | Oil & Gas Property | May 2016 |
| 545 | DE LAFOSSE | Shackelford County, TX | Oil & Gas Property | Apr 2025 |
| 546 | DE LONG | Schleicher County, TX | Oil & Gas Property | Aug 2020 |
| 547 | DE LOPEZ C.V | Starr County, TX | Oil & Gas Property | Jan 2024 |
| 548 | DE LOPEZ, C. V. A | Starr County, TX | Oil & Gas Property | Apr 2025 |
| 549 | DE LOPEZ, C.V.-B | Starr County, TX | Oil & Gas Property | Apr 2025 |
| 550 | DE LOS SANTOS | Zapata County, TX | Oil & Gas Property | Apr 2025 |
| 551 | DE LOS SANTOS G | Zapata County, TX | Oil & Gas Property | Apr 2025 |
| 552 | DE MARTINEZ M | Zapata County, TX | Oil & Gas Property | Apr 2025 |
| 553 | DE PENA V.L | Starr County, TX | Oil & Gas Property | Apr 2003 |
| 554 | DE SCHWARTZ 1 | Glasscock County, TX | Oil Property | Mar 2015 |
| 555 | DE TIJER | Jim Wells County, TX | Oil & Gas Property | Apr 2025 |
| 556 | DE WITT GAS UNIT | Jefferson County, TX | Oil & Gas Property | Jul 2024 |
| 557 | DEACON JIM 16 | Reeves County, TX | Oil & Gas Property | Jul 2021 |
| 558 | DEACON JIM UNIT 6-7 | Howard County, TX | Oil & Gas Property | Apr 2025 |
| 559 | DEAD MAN CANYON | Crockett County, TX | Oil Property | Apr 2025 |
| 560 | DEADMON A | Harrison County, TX | Oil & Gas Property | Apr 2025 |
| 561 | DEADWOOD | Panola County, TX | Oil & Gas Property | Apr 2025 |
| 562 | DEADY | Harrison County, TX | Oil & Gas Property | Apr 2025 |
| 563 | DEAGEN BILL & SONS LTD | Wilson County, TX | Oil & Gas Property | Aug 2022 |
| 564 | DEAHL | Carson County, TX | Oil & Gas Property | Apr 2025 |
| 565 | DEAL | Johnson County, TX | Gas Property | Apr 2025 |
| 566 | DEAL | Schleicher County, TX | Oil & Gas Property | Apr 2025 |
| 567 | DEAL SANFORD 3 | Hutchinson County, TX | Gas Property | Jan 2025 |
| 568 | DEAN | Johnson County, TX | Gas Property | Apr 2025 |
| 569 | DEAN | Parker County, TX | Oil & Gas Property | Apr 2025 |
| 570 | DEAN | Victoria County, TX | Oil & Gas Property | Apr 2025 |
| 571 | DEAN | Cochran County, TX | Oil & Gas Property | Apr 2025 |
| 572 | DEAN | Cochran County, TX | Oil & Gas Property | Apr 2025 |
| 573 | DEAN (SPRABERRY) UNIT | Dawson County, TX | Oil & Gas Property | Apr 2025 |
| 574 | DEAN A. E. GAS UNIT #1 | Rusk County, TX | Oil & Gas Property | Apr 2025 |
| 575 | DEAN BROS | Shackelford County, TX | Oil & Gas Property | Apr 2025 |
| 576 | DEAN BROS | Clay County, TX | Oil & Gas Property | Nov 2022 |
| 577 | DEAN CARRIE S | Dawson County, TX | Oil & Gas Property | Apr 2025 |
| 578 | DEAN CARRIE SLAUGHTER C | Cochran County, TX | Oil & Gas Property | Apr 2025 |
| 579 | DEAN EQUIPMENT CO | Lee County, TX | Oil & Gas Property | Apr 2025 |
| 580 | DEAN RANCH | Dawson County, TX | Oil Property | Mar 2017 |
| 581 | DEAN UNIT | Tarrant County, TX | Gas Property | Apr 2025 |
| 582 | DEAN-MOORE UNIT | Burleson County, TX | Oil & Gas Property | Apr 2025 |
| 583 | DEANN | Johnson County, TX | Gas Property | Jan 2025 |
| 584 | DEARING | Jack County, TX | Oil & Gas Property | Apr 2025 |
| 585 | DEARING W | Jack County, TX | Oil & Gas Property | Apr 2025 |
| 586 | DEARING-CHURCHILL | Parker County, TX | Oil & Gas Property | Feb 2025 |
| 587 | DEARMAN | Henderson County, TX | Oil & Gas Property | Apr 2025 |
| 588 | DEARMAN,J.W. GAS UNIT 1 | Shelby County, TX | Oil & Gas Property | Apr 2025 |
| 589 | DEASON | Rusk County, TX | Oil & Gas Property | Apr 2025 |
| 590 | DEASON | Panola County, TX | Oil & Gas Property | Apr 2025 |
| 591 | DEATH VALLEY | Fisher County, TX | Oil & Gas Property | Apr 2025 |
| 592 | DEATHERAGE | Martin County, TX | Oil & Gas Property | Apr 2025 |
| 593 | DEATHERAGE | Dawson County, TX | Oil & Gas Property | Feb 2025 |
| 594 | DEATHERAGE | Martin County, TX | Oil & Gas Property | Oct 2022 |
| 595 | DEATHEREGE 18 | Martin County, TX | Oil & Gas Property | Jul 2023 |
| 596 | DEATLEY HOLLUB | Atascosa County, TX | Oil & Gas Property | Apr 2025 |
| 597 | DEATLEY, M | Atascosa County, TX | Oil & Gas Property | Jul 2024 |
| 598 | DEATLEY-GRIFFIN | Atascosa County, TX | Oil & Gas Property | Apr 2025 |
| 599 | DEATON | Archer County, TX | Oil & Gas Property | Apr 2025 |
| 600 | DEATON | Jack County, TX | Oil & Gas Property | Feb 2025 |