| 19501 | INLAND | Eastland County, TX | Gas Property | Jan 2025 |
| 19502 | INMAN A | Upshur County, TX | Oil & Gas Property | Jan 2025 |
| 19503 | INMAN UNIT | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 19504 | INTEGRITY | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 19505 | INTERGALACTIC UNIT | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 19506 | INTERNATIONAL PAPER | Rusk County, TX | Oil & Gas Property | Jan 2025 |
| 19507 | INTERNATIONAL PAPER | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 19508 | INTERNATIONAL PAPER CO | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 19509 | INTERNATIONAL PAPER CO | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 19510 | INTERNATIONAL PAPER CO. GU 4H | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 19511 | INTERNATIONAL UNIT | Howard County, TX | Oil & Gas Property | Jan 2025 |
| 19512 | INTERSTATE | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19513 | INTERSTATE | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 19514 | INTIMIDATION 33-63 | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 19515 | INTO THE STORM | Fisher County, TX | Oil & Gas Property | Jan 2025 |
| 19516 | INTREPID 55-12 | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19517 | INTREPID STATE UNIT | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19518 | INTUITION | Ward County, TX | Oil & Gas Property | Dec 2024 |
| 19519 | INVADER | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 19520 | INVESTORS ROYALTY | Terry County, TX | Oil & Gas Property | Jan 2025 |
| 19521 | INVICTUS 29-48 | Loving County, TX | Oil & Gas Property | Jan 2025 |
| 19522 | INXS 7 | Wilson County, TX | Oil & Gas Property | Jan 2025 |
| 19523 | IODINE FR 4 | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 19524 | IONI CREEK | Palo Pinto County, TX | Oil & Gas Property | Jan 2025 |
| 19525 | IOU RANCH | Stonewall County, TX | Oil Property | Jan 2025 |
| 19526 | IOWA | Pecos County, TX | Oil & Gas Property | Apr 2021 |
| 19527 | IOWA GULCH 9796-F | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 19528 | IOWA REALTY TRUST | Pecos County, TX | Oil & Gas Property | Jul 2024 |
| 19529 | IOWA REALTY TRUST | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 19530 | IP FARMS ( | Brazoria County, TX | Oil & Gas Property | Jul 2024 |
| 19531 | IPCO-E JOHNSON (AW) | Panola County, TX | Oil & Gas Property | Jan 2025 |
| 19532 | IRA HEARD | Refugio County, TX | Oil & Gas Property | Jun 2023 |
| 19533 | IRA N | Scurry County, TX | Oil & Gas Property | Jan 2025 |
| 19534 | IRA N. W | Scurry County, TX | Oil & Gas Property | Jan 2025 |
| 19535 | IRA(1700 ZONE)UNIT | Scurry County, TX | Oil & Gas Property | Dec 2024 |
| 19536 | IRBY | Archer County, TX | Oil Property | Sep 2022 |
| 19537 | IRBY | Grayson County, TX | Oil & Gas Property | Jan 2025 |
| 19538 | IRELAND UNIT | Denton County, TX | Oil & Gas Property | Jan 2025 |
| 19539 | IRENE | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 19540 | IRENE | Brazos County, TX | Oil & Gas Property | Dec 2024 |
| 19541 | IRENE DIXON | Hemphill County, TX | Oil & Gas Property | Sep 2024 |
| 19542 | IRENE O UNIT 3-18 | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19543 | IRION | Rusk County, TX | Oil & Gas Property | Jan 2025 |
| 19544 | IRISH | Hale County, TX | Oil & Gas Property | Apr 2020 |
| 19545 | IRMA | Moore County, TX | Oil Property | Jan 2025 |
| 19546 | IRMA | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 19547 | IRON BRIDGE TANNEHILL A SAND UNT | Dickens County, TX | Oil & Gas Property | Jan 2025 |
| 19548 | IRON CITY STATE | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19549 | IRON DUKE | Madison County, TX | Oil & Gas Property | Jan 2025 |
| 19550 | IRON DUKE (ALLOCATION) | Madison County, TX | Oil & Gas Property | Jul 2023 |
| 19551 | IRON EAGLE DEEP UNIT | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19552 | IRON EAGLE UNIT | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19553 | IRON HORSE | Throckmorton County, TX | Oil & Gas Property | Jan 2025 |
| 19554 | IRON MIKE | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19555 | IRON MOUNTAIN | Polk County, TX | Oil & Gas Property | Jan 2025 |
| 19556 | IRON SNAKE 1912 | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 19557 | IRONBORN 34-27 | Dawson County, TX | Oil & Gas Property | Jan 2025 |
| 19558 | IRONOSA 1H | San Augustine County, TX | Oil & Gas Property | Jan 2025 |
| 19559 | IRONS | Montague County, TX | Oil & Gas Property | Oct 2016 |
| 19560 | IRONWOOD | Frio County, TX | Oil & Gas Property | Dec 2024 |
| 19561 | IROQUOIS STATE UNIT | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 19562 | IRT 53 | Pecos County, TX | Oil Property | Jan 2025 |
| 19563 | IRT 6 | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 19564 | IRVIN | Jones County, TX | Oil & Gas Property | Jan 2025 |
| 19565 | IRVIN | Hardeman County, TX | Oil & Gas Property | Jul 2024 |
| 19566 | IRVIN | Taylor County, TX | Oil & Gas Property | Dec 2024 |
| 19567 | IRVIN | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19568 | IRVIN "A" | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 19569 | IRVIN F-G ALLOC | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19570 | IRVIN F-G-IMN ALLOC | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19571 | IRVIN FAMILY | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19572 | IRVIN GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 19573 | IRVIN H-I ALLOCATION | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19574 | IRVIN MINERALS NORTH | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19575 | IRVIN MINERALS SOUTH | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 19576 | IRVIN SISTERS | Ochiltree County, TX | Oil & Gas Property | Dec 2024 |
| 19577 | IRVIN-CONLEY "D" | Hardeman County, TX | Oil & Gas Property | Jan 2025 |
| 19578 | IRVINE | Parker County, TX | Oil & Gas Property | Jan 2025 |
| 19579 | IRVINE CHARLES | Navarro County, TX | Oil & Gas Property | Jan 2025 |
| 19580 | IRWIN | Medina County, TX | Oil & Gas Property | Dec 2024 |
| 19581 | IRWIN | Throckmorton County, TX | Oil & Gas Property | Jan 2025 |
| 19582 | IRWIN | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 19583 | IRWIN A 1 | Leon County, TX | Oil & Gas Property | Jan 2025 |
| 19584 | IRWIN BEN | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 19585 | IRWIN STANLEY | Throckmorton County, TX | Oil & Gas Property | Jan 2025 |
| 19586 | IRWIN, JOHN R | Medina County, TX | Oil & Gas Property | Jun 2013 |
| 19587 | ISAAC | Hardin County, TX | Oil & Gas Property | Jan 2025 |
| 19588 | ISAAC | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 19589 | ISAACS | Roberts County, TX | Oil & Gas Property | Jan 2025 |
| 19590 | ISAACS | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 19591 | ISAACS | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 19592 | ISAACS DAVID Q | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 19593 | ISAACS JOHN | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 19594 | ISAACS-SIMPSON | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 19595 | ISAAK | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 19596 | ISABEL | Ector County, TX | Oil & Gas Property | Jan 2025 |
| 19597 | ISABELLA | Gonzales County, TX | Oil & Gas Property | Apr 2003 |
| 19598 | ISABELLE | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 19599 | ISBELL | Grimes County, TX | Oil & Gas Property | Jan 2025 |
| 19600 | ISBELL | Johnson County, TX | Oil & Gas Property | Jan 2025 |