| 601 | HARDIN-SIMMONS CRE | Reeves County, TX | Oil & Gas Property | Aug 2019 |
| 602 | HARDING | Jack County, TX | Oil & Gas Property | Mar 2022 |
| 603 | HARDING FEE | Ward County, TX | Oil & Gas Property | Feb 2026 |
| 604 | HARDISON | Baylor County, TX | Oil & Gas Property | Nov 2023 |
| 605 | HARDONCOURT | Palo Pinto County, TX | Oil & Gas Property | Mar 2026 |
| 606 | HARDSCRABBLE | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 607 | HARDWICK | King County, TX | Oil & Gas Property | Mar 2026 |
| 608 | HARDWICK | Moore County, TX | Oil & Gas Property | Mar 2026 |
| 609 | HARDWICK-BIGGS | Lee County, TX | Oil & Gas Property | Mar 2026 |
| 610 | HARDWICKE -N | Crane County, TX | Oil & Gas Property | Mar 2026 |
| 611 | HARDWICKE-UNIVERSITY-SEC | Upton County, TX | Oil & Gas Property | Jan 2022 |
| 612 | HARDY | Wilson County, TX | Oil & Gas Property | Mar 2026 |
| 613 | HARDY | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 614 | HARDY | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 615 | HARDY | Ochiltree County, TX | Oil & Gas Property | Mar 2026 |
| 616 | HARDY | Throckmorton County, TX | Oil Property | Mar 2026 |
| 617 | HARDY 1 | Madison County, TX | Oil & Gas Property | Jan 2026 |
| 618 | HARDY 33 | Howard County, TX | Oil & Gas Property | Jul 2024 |
| 619 | HARDY A UNIT | Montague County, TX | Oil & Gas Property | Mar 2026 |
| 620 | HARDY B UNIT | Montague County, TX | Oil & Gas Property | Mar 2026 |
| 621 | HARDY BEATRICE | Jack County, TX | Oil & Gas Property | Mar 2026 |
| 622 | HARDY GUS | Caldwell County, TX | Oil & Gas Property | Mar 2026 |
| 623 | HARDY HEIRS-MODISETTE (SA) | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 624 | HARDY JOHN | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 625 | HARDY PRICE | Jack County, TX | Oil & Gas Property | Mar 2026 |
| 626 | HARDY SARAH EST | Kaufman County, TX | Oil & Gas Property | Jan 2026 |
| 627 | HARDY SILVAN | Bexar County, TX | Oil & Gas Property | Jun 2025 |
| 628 | HARDY UNIT | Montague County, TX | Oil & Gas Property | Mar 2026 |
| 629 | HARDY UNIT AC | Karnes County, TX | Oil & Gas Property | Mar 2026 |
| 630 | HARDY, RUFUS | Waller County, TX | Oil & Gas Property | Mar 2026 |
| 631 | HARDY-MIDDLETON UNIT | Wise County, TX | Oil & Gas Property | Mar 2026 |
| 632 | HARDY-SPOON UNIT | Cooke County, TX | Oil Property | Mar 2026 |
| 633 | HARELL | Martin County, TX | Oil & Gas Property | Mar 2026 |
| 634 | HARGILL GAS UNIT | Willacy County, TX | Oil & Gas Property | Mar 2026 |
| 635 | HARGIS | Zavala County, TX | Oil & Gas Property | Mar 2026 |
| 636 | HARGRAVE | Archer County, TX | Oil & Gas Property | Feb 2025 |
| 637 | HARGRAVE | Irion County, TX | Oil & Gas Property | Jan 2026 |
| 638 | HARGROVE | Zavala County, TX | Oil & Gas Property | Mar 2026 |
| 639 | HARGROVE | Ochiltree County, TX | Oil & Gas Property | Mar 2026 |
| 640 | HARGROVE | Shackelford County, TX | Oil & Gas Property | Feb 2026 |
| 641 | HARGROVE | Titus County, TX | Oil & Gas Property | Mar 2026 |
| 642 | HARGROVE 49 | Scurry County, TX | Oil & Gas Property | Mar 2026 |
| 643 | HARGROVE H.B | Hidalgo County, TX | Oil & Gas Property | Mar 2026 |
| 644 | HARGROVE JAMES W | Burleson County, TX | Oil & Gas Property | Nov 2024 |
| 645 | HARGROVES | McCulloch County, TX | Oil & Gas Property | Jan 2026 |
| 646 | HARHAUSEN | Lipscomb County, TX | Oil & Gas Property | Mar 2026 |
| 647 | HARKINS | Live Oak County, TX | Oil & Gas Property | Apr 2015 |
| 648 | HARKRIDER UNIT | Lee County, TX | Oil & Gas Property | Mar 2026 |
| 649 | HARLAN | Nueces County, TX | Oil & Gas Property | Jul 2023 |
| 650 | HARLAN | Frio County, TX | Oil & Gas Property | Mar 2026 |
| 651 | HARLAN | Jack County, TX | Oil & Gas Property | Sep 2022 |
| 652 | HARLAN | Wheeler County, TX | Oil & Gas Property | Mar 2026 |
| 653 | HARLAN | Cherokee County, TX | Oil & Gas Property | Mar 2026 |
| 654 | HARLAN | Young County, TX | Oil & Gas Property | Mar 2026 |
| 655 | HARLAN KENNETH | Nueces County, TX | Oil & Gas Property | Dec 2019 |
| 656 | HARLAN METTING 01 0 | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 657 | HARLAN-NELSON | Live Oak County, TX | Oil & Gas Property | Mar 2026 |
| 658 | HARLAND | Sherman County, TX | Oil & Gas Property | Mar 2026 |
| 659 | HARLAND | Sherman County, TX | Oil & Gas Property | Feb 2026 |
| 660 | HARLAND 3 | Howard County, TX | Oil & Gas Property | Mar 2026 |
| 661 | HARLAND C | Sherman County, TX | Gas Property | Mar 2026 |
| 662 | HARLE | La Salle County, TX | Oil & Gas Property | Mar 2026 |
| 663 | HARLETON NE (PETTIT) UNIT | Harrison County, TX | Oil & Gas Property | Mar 2026 |
| 664 | HARLEY | Gregg County, TX | Oil & Gas Property | Mar 2026 |
| 665 | HARLEY | Throckmorton County, TX | Oil & Gas Property | Feb 2026 |
| 666 | HARLIN | Young County, TX | Oil & Gas Property | Mar 2026 |
| 667 | HARLOW S. J. GAS UNIT | Limestone County, TX | Oil & Gas Property | Mar 2026 |
| 668 | HARMEL | Archer County, TX | Oil & Gas Property | Mar 2026 |
| 669 | HARMEL | Archer County, TX | Oil & Gas Property | Feb 2020 |
| 670 | HARMEL | Baylor County, TX | Oil & Gas Property | Mar 2026 |
| 671 | HARMEL | Baylor County, TX | Oil Property | Mar 2026 |
| 672 | HARMEL | Archer County, TX | Oil & Gas Property | Mar 2026 |
| 673 | HARMEL-ANDREWS | Archer County, TX | Oil & Gas Property | Mar 2026 |
| 674 | HARMON | Smith County, TX | Oil & Gas Property | Mar 2026 |
| 675 | HARMON | Orange County, TX | Oil & Gas Property | Oct 2025 |
| 676 | HARMON | Montague County, TX | Oil & Gas Property | Jan 2026 |
| 677 | HARMON | Young County, TX | Oil & Gas Property | May 2022 |
| 678 | HARMON GAS UNIT NO. 1 | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 679 | HARMON J.W | Stephens County, TX | Oil & Gas Property | Sep 2024 |
| 680 | HARMON JESSIE | Orange County, TX | Oil & Gas Property | Oct 2025 |
| 681 | HARMON SCHOOL 1H | Washington County, TX | Oil & Gas Property | Feb 2026 |
| 682 | HARMON-DICKESON 1H | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 683 | HARMON-GALAN WHITE 1H | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 684 | HARMONIA | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 685 | HARMONSON | Archer County, TX | Oil & Gas Property | Mar 2026 |
| 686 | HARMONSON MORRIS | Tarrant County, TX | Gas Property | Mar 2026 |
| 687 | HARMS | Parker County, TX | Oil & Gas Property | Mar 2026 |
| 688 | HAROLD 1 | Hansford County, TX | Oil & Gas Property | Mar 2026 |
| 689 | HAROLD COURSON 478 | Ochiltree County, TX | Oil & Gas Property | Mar 2026 |
| 690 | HAROLD GOHMERT 01 | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 691 | HARP | Jones County, TX | Oil & Gas Property | Nov 2018 |
| 692 | HARP, MELVIN | Jones County, TX | Oil & Gas Property | Feb 2001 |
| 693 | HARPER | Rusk County, TX | Oil & Gas Property | Mar 2026 |
| 694 | HARPER | Throckmorton County, TX | Oil & Gas Property | Feb 2026 |
| 695 | HARPER | Schleicher County, TX | Oil & Gas Property | Feb 2026 |
| 696 | HARPER | Montague County, TX | Oil & Gas Property | Feb 2025 |
| 697 | HARPER 1-12 | Midland County, TX | Oil & Gas Property | Mar 2026 |
| 698 | HARPER 32-232 | Hemphill County, TX | Oil & Gas Property | Mar 2026 |
| 699 | HARPER A | Irion County, TX | Oil & Gas Property | Mar 2026 |
| 700 | HARPER ALLOCATION A 101H | La Salle County, TX | Oil & Gas Property | Mar 2026 |