| 40601 | UL PITCHFORK B 20-35-26 | Winkler County, TX | Oil & Gas Property | Jul 2025 |
| 40602 | UL RATTLE | Ward County, TX | Oil & Gas Property | Nov 2021 |
| 40603 | UL REAGAN | Reagan County, TX | Oil & Gas Property | Jul 2025 |
| 40604 | UL ROY | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40605 | UL SITKA 12 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40606 | UL SPRINTER | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40607 | UL SPRUCE 1621-21 | Winkler County, TX | Oil & Gas Property | Jul 2025 |
| 40608 | UL STANOLIND 30-27 | Martin County, TX | Oil & Gas Property | Jul 2025 |
| 40609 | UL STATE LINDSEY DIXON | Reagan County, TX | Oil & Gas Property | Jul 2025 |
| 40610 | UL SUGARLOAF | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40611 | UL SUNSHINE MESA 2 | Winkler County, TX | Oil & Gas Property | Jul 2025 |
| 40612 | UL TALLEY B | Reagan County, TX | Oil & Gas Property | Jul 2025 |
| 40613 | UL TAWNY UNIT 8-12 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40614 | UL THE MACHINE | Upton County, TX | Oil & Gas Property | Jul 2025 |
| 40615 | UL TILDEN 16-31-32 | Ward County, TX | Oil & Gas Property | Jun 2025 |
| 40616 | UL URAD 1609-21 | Winkler County, TX | Oil & Gas Property | Jul 2025 |
| 40617 | UL WASH PARK 2 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40618 | UL WAYLON | Upton County, TX | Oil & Gas Property | Jul 2025 |
| 40619 | UL WILLIE | Upton County, TX | Oil & Gas Property | Jul 2025 |
| 40620 | UL WILLOW 383633-16 | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40621 | UL WTG 3-233 | Reagan County, TX | Oil & Gas Property | Jul 2025 |
| 40622 | UL YANKEE BOY 18-17 | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40623 | UL YELLOWTAIL | Winkler County, TX | Oil & Gas Property | Jul 2025 |
| 40624 | UL13 KEENE | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40625 | ULANDS 48 | Reagan County, TX | Oil & Gas Property | Jul 2025 |
| 40626 | ULLMAN | Gonzales County, TX | Oil & Gas Property | Jul 2025 |
| 40627 | ULLRICH 'A' | Lee County, TX | Oil & Gas Property | Jul 2025 |
| 40628 | ULRICH | Dewitt County, TX | Oil & Gas Property | Jul 2025 |
| 40629 | ULRICH A - WILLIAMS A SA 1 1H | Dewitt County, TX | Oil & Gas Property | Jul 2025 |
| 40630 | ULS 4 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40631 | ULS 4 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40632 | ULS 5 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40633 | ULS 5-9 UNIT | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40634 | ULS 6-3 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40635 | ULS A | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40636 | ULS B | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40637 | ULS CDU | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40638 | ULS CDU 4-1 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40639 | ULVESTAD | Midland County, TX | Oil & Gas Property | Jul 2025 |
| 40640 | ULVESTAD-BIRKHEAD E20 | Midland County, TX | Oil & Gas Property | Jul 2025 |
| 40641 | UMA UNIT | Hill County, TX | Oil & Gas Property | Jul 2025 |
| 40642 | UMBERSON | Montague County, TX | Oil & Gas Property | Jul 2025 |
| 40643 | UMBRELLA POINT UNIT | Chambers County, TX | Oil & Gas Property | Jul 2013 |
| 40644 | UMBRIEL B | Lavaca County, TX | Oil & Gas Property | Jul 2025 |
| 40645 | UMIVERSITY BLOCK 46 | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40646 | UMLANG-LEHMANN UNIT | Lee County, TX | Oil & Gas Property | Jul 2025 |
| 40647 | UMPHRESS, C.F. ET AL | Howard County, TX | Oil & Gas Property | Mar 2019 |
| 40648 | UNA HYRAL | Johnson County, TX | Gas Property | Jul 2025 |
| 40649 | UNBRIDLED 36 | Culberson County, TX | Oil & Gas Property | Jul 2025 |
| 40650 | UNCLE BILL 1 | Lipscomb County, TX | Oil & Gas Property | Jul 2025 |
| 40651 | UNCLE CECIL | Terrell County, TX | Oil & Gas Property | Jul 2025 |
| 40652 | UNCLE JERRY DAVIS | Liberty County, TX | Oil Property | Jun 2025 |
| 40653 | UNCOMPAGHRE STATE UNIT | Reeves County, TX | Oil & Gas Property | Jul 2025 |
| 40654 | UNDER THE BRIDGE 452 | Yoakum County, TX | Oil & Gas Property | Jul 2025 |
| 40655 | UNDERWOOD | Harrison County, TX | Oil & Gas Property | Jul 2025 |
| 40656 | UNDERWOOD | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40657 | UNDERWOOD | Milam County, TX | Oil & Gas Property | Jul 2025 |
| 40658 | UNDERWOOD | Red River County, TX | Oil & Gas Property | Jul 2025 |
| 40659 | UNDERWOOD | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40660 | UNDERWOOD | Howard County, TX | Oil & Gas Property | Jun 2025 |
| 40661 | UNDERWOOD | Winkler County, TX | Oil & Gas Property | Jul 2025 |
| 40662 | UNDERWOOD ESTATE 1 | Lavaca County, TX | Oil & Gas Property | Jun 2025 |
| 40663 | UNDERWOOD MARY E | Montague County, TX | Oil & Gas Property | Feb 2025 |
| 40664 | UNDERWOOD-BREEN | Denton County, TX | Oil & Gas Property | Jul 2025 |
| 40665 | UNDERWOOD-JOHNSON 1 | Hutchinson County, TX | Oil & Gas Property | Jun 2025 |
| 40666 | UNDINE | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40667 | UNFORGIVEN 34 113-114 | Ward County, TX | Oil & Gas Property | Jul 2025 |
| 40668 | UNICORN | Johnson County, TX | Gas Property | Jul 2025 |
| 40669 | UNICORN UNIT | Borden County, TX | Oil & Gas Property | Jul 2025 |
| 40670 | UNIMIN UNIT | Somervell County, TX | Oil & Gas Property | Jul 2025 |
| 40671 | UNION | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40672 | UNION CENT | Nueces County, TX | Oil & Gas Property | Jun 2025 |
| 40673 | UNION CENTRAL | Denton County, TX | Oil & Gas Property | Jul 2025 |
| 40674 | UNION CENTRAL LIFE INS | Nueces County, TX | Gas Property | Jul 2025 |
| 40675 | UNION CENTRAL-CONDEE WELCH (SA) 1H | Denton County, TX | Oil & Gas Property | Jul 2025 |
| 40676 | UNION HILL | Washington County, TX | Oil & Gas Property | Jul 2025 |
| 40677 | UNION PACIFIC | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40678 | UNION PACIFIC 7 | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40679 | UNION RANCH | Webb County, TX | Oil & Gas Property | Jul 2025 |
| 40680 | UNION VALLEY A | Dawson County, TX | Oil & Gas Property | Jul 2025 |
| 40681 | UNION-STATE | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40682 | UNISON | Tarrant County, TX | Gas Property | Jul 2025 |
| 40683 | UNIT | Wood County, TX | Oil Property | Jul 2025 |
| 40684 | UNITED 1 | Moore County, TX | Gas Property | Jul 2025 |
| 40685 | UNITED PRESBYTERIAN CHURCH | Dawson County, TX | Oil & Gas Property | Aug 2015 |
| 40686 | UNIV | Crockett County, TX | Oil & Gas Property | May 2025 |
| 40687 | UNIV | Ward County, TX | Oil & Gas Property | Jun 2025 |
| 40688 | UNIV. CONSOLIDATED X | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40689 | UNIV.-11-SEC.-1 | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40690 | UNIV2 HR | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 40691 | UNIV3 VINCENT2 | Upton County, TX | Oil & Gas Property | Jul 2025 |
| 40692 | UNIV4 DANNETTE33 | Upton County, TX | Oil & Gas Property | Jul 2025 |
| 40693 | UNIV5 | Upton County, TX | Oil & Gas Property | Nov 2022 |
| 40694 | UNIV6 | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40695 | UNIVANISTON | Crane County, TX | Oil & Gas Property | Jul 2025 |
| 40696 | UNIVBAILEY | Crane County, TX | Oil & Gas Property | Jul 2025 |
| 40697 | UNIVCARLA | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40698 | UNIVDANA | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40699 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jul 2025 |
| 40700 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jul 2025 |