| 40401 | UNDERWOOD-JOHNSON 1 | Hutchinson County, TX | Oil & Gas Property | Apr 2026 |
| 40402 | UNDINE | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40403 | UNFORGIVEN 34 113-114 | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 40404 | UNICORN | Johnson County, TX | Gas Property | Apr 2026 |
| 40405 | UNICORN UNIT | Borden County, TX | Oil & Gas Property | Mar 2026 |
| 40406 | UNIMIN UNIT | Somervell County, TX | Oil & Gas Property | Apr 2026 |
| 40407 | UNION | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40408 | UNION CENT | Nueces County, TX | Oil & Gas Property | Apr 2026 |
| 40409 | UNION CENTRAL | Denton County, TX | Oil & Gas Property | Apr 2026 |
| 40410 | UNION CENTRAL LIFE INS | Nueces County, TX | Gas Property | Apr 2026 |
| 40411 | UNION CENTRAL-CONDEE WELCH (SA) 1H | Denton County, TX | Oil & Gas Property | Apr 2026 |
| 40412 | UNION HILL | Washington County, TX | Oil & Gas Property | Apr 2026 |
| 40413 | UNION PACIFIC | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40414 | UNION PACIFIC 7 | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40415 | UNION RANCH | Webb County, TX | Oil & Gas Property | Apr 2026 |
| 40416 | UNION VALLEY A | Dawson County, TX | Oil & Gas Property | Apr 2026 |
| 40417 | UNION-STATE | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40418 | UNISON | Tarrant County, TX | Gas Property | Apr 2026 |
| 40419 | UNIT | Wood County, TX | Oil Property | Apr 2026 |
| 40420 | UNITED 1 | Moore County, TX | Gas Property | Apr 2026 |
| 40421 | UNITED PRESBYTERIAN CHURCH | Dawson County, TX | Oil & Gas Property | Aug 2015 |
| 40422 | UNITED RESOURCES 1H | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 40423 | UNIV | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40424 | UNIV | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 40425 | UNIV. 11 SEC. 1 | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40426 | UNIV. CONSOLIDATED X | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40427 | UNIV2 HR | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40428 | UNIV3 VINCENT2 | Upton County, TX | Oil & Gas Property | Apr 2026 |
| 40429 | UNIV5 | Upton County, TX | Oil & Gas Property | Sep 2022 |
| 40430 | UNIV6 | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40431 | UNIVANISTON | Crane County, TX | Oil & Gas Property | Apr 2026 |
| 40432 | UNIVCARLA | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40433 | UNIVDANA | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40434 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40435 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40436 | UNIVERSITY | Schleicher County, TX | Oil & Gas Property | Apr 2026 |
| 40437 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Sep 2012 |
| 40438 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40439 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 40440 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Apr 2026 |
| 40441 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Apr 2026 |
| 40442 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40443 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40444 | UNIVERSITY | Winkler County, TX | Oil & Gas Property | Apr 2026 |
| 40445 | UNIVERSITY | Reagan County, TX | Oil & Gas Property | Apr 2026 |
| 40446 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40447 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40448 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40449 | UNIVERSITY | Pecos County, TX | Oil Property | Jan 2021 |
| 40450 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40451 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Nov 2010 |
| 40452 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Apr 2026 |
| 40453 | UNIVERSITY | Reagan County, TX | Oil & Gas Property | Apr 2026 |
| 40454 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40455 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40456 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40457 | UNIVERSITY | Schleicher County, TX | Oil & Gas Property | Feb 2026 |
| 40458 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Mar 2011 |
| 40459 | UNIVERSITY | Martin County, TX | Oil & Gas Property | Apr 2026 |
| 40460 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40461 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40462 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40463 | UNIVERSITY | Terrell County, TX | Oil & Gas Property | Apr 2026 |
| 40464 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40465 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Apr 2026 |
| 40466 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Apr 2026 |
| 40467 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2026 |
| 40468 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Apr 2026 |
| 40469 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40470 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40471 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 40472 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40473 | UNIVERSITY | Terrell County, TX | Oil & Gas Property | Apr 2026 |
| 40474 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40475 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40476 | UNIVERSITY | Upton County, TX | Oil & Gas Property | Apr 2026 |
| 40477 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Feb 2024 |
| 40478 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40479 | UNIVERSITY 12 | Reagan County, TX | Oil & Gas Property | Apr 2026 |
| 40480 | UNIVERSITY 18-40 | Ward County, TX | Oil & Gas Property | Aug 2019 |
| 40481 | UNIVERSITY 38 BLOCK UNIT 3819 | Crockett County, TX | Oil & Gas Property | Dec 2017 |
| 40482 | UNIVERSITY 45 | Crockett County, TX | Oil & Gas Property | Mar 2026 |
| 40483 | UNIVERSITY BL | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40484 | UNIVERSITY BLK 9 WOLFCAMP UNIT | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40485 | UNIVERSITY CITIES SERVICE | Crockett County, TX | Oil & Gas Property | Jan 2026 |
| 40486 | UNIVERSITY CONS | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40487 | UNIVERSITY CONSOLIDATED IX | Andrews County, TX | Oil & Gas Property | Aug 2016 |
| 40488 | UNIVERSITY CONSOLIDATED XIII | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40489 | UNIVERSITY GREAT PLAINS -B | Crockett County, TX | Oil & Gas Property | Mar 2026 |
| 40490 | UNIVERSITY LANDS | Edwards County, TX | Oil & Gas Property | Mar 2026 |
| 40491 | UNIVERSITY MCFARLAND 8 UNIT | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40492 | UNIVERSITY SAN ANDRES UNIT | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40493 | UNIVERSITY SOUTHERN MINERALS | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40494 | UNIVERSITY TB(SHALLOW) UNIT A-1 | Andrews County, TX | Oil & Gas Property | Apr 2026 |
| 40495 | UNIVERSITY WADDELL DEVONIAN UNIT | Crane County, TX | Oil & Gas Property | Apr 2026 |
| 40496 | UNIVERSITY WEST | Tarrant County, TX | Gas Property | Apr 2026 |
| 40497 | UNIVERSITY/ENERGEN GRAYBURG UNIT | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 40498 | UNIVERSITYNATALIE | Crockett County, TX | Oil & Gas Property | Apr 2026 |
| 40499 | UNIVERSITYVINCENT | Upton County, TX | Oil & Gas Property | Apr 2026 |
| 40500 | UNIVJENNY | Crane County, TX | Oil & Gas Property | Apr 2026 |