| 40901 | ULS CDU 4-1 | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40902 | ULVESTAD | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 40903 | ULVESTAD-BIRKHEAD E20 | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 40904 | UMA UNIT | Hill County, TX | Oil & Gas Property | Jan 2025 |
| 40905 | UMBERSON | Montague County, TX | Oil & Gas Property | Jan 2025 |
| 40906 | UMBRELLA POINT UNIT | Chambers County, TX | Oil & Gas Property | Jul 2013 |
| 40907 | UMBRIEL B | Lavaca County, TX | Oil & Gas Property | Jan 2025 |
| 40908 | UMIVERSITY BLOCK 46 | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40909 | UMLANG-LEHMANN UNIT | Lee County, TX | Oil & Gas Property | Jan 2025 |
| 40910 | UMPHRESS,C. F. ET AL | Howard County, TX | Oil & Gas Property | Mar 2019 |
| 40911 | UNA HYRAL | Johnson County, TX | Gas Property | Jan 2025 |
| 40912 | UNBRIDLED 36 | Culberson County, TX | Oil & Gas Property | Jan 2025 |
| 40913 | UNCLE BILL 1 | Lipscomb County, TX | Oil & Gas Property | Jan 2025 |
| 40914 | UNCLE CECIL | Terrell County, TX | Oil & Gas Property | Jan 2025 |
| 40915 | UNCOMPAGHRE STATE UNIT | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 40916 | UNDER THE BRIDGE 452 | Yoakum County, TX | Oil & Gas Property | Jan 2025 |
| 40917 | UNDERWOOD | Harrison County, TX | Oil & Gas Property | Jan 2025 |
| 40918 | UNDERWOOD | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40919 | UNDERWOOD | Milam County, TX | Oil & Gas Property | Jan 2025 |
| 40920 | UNDERWOOD | Red River County, TX | Oil & Gas Property | Jan 2025 |
| 40921 | UNDERWOOD | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 40922 | UNDERWOOD | Howard County, TX | Oil & Gas Property | Dec 2024 |
| 40923 | UNDERWOOD | Winkler County, TX | Oil & Gas Property | Jan 2025 |
| 40924 | UNDERWOOD ESTATE 1 | Lavaca County, TX | Oil & Gas Property | Dec 2024 |
| 40925 | UNDERWOOD MARY E | Montague County, TX | Oil & Gas Property | Jan 2025 |
| 40926 | UNDERWOOD-BREEN | Denton County, TX | Oil & Gas Property | Jan 2025 |
| 40927 | UNDERWOOD-JOHNSON 1 | Hutchinson County, TX | Oil & Gas Property | Jan 2025 |
| 40928 | UNDINE | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40929 | UNFORGIVEN 34 113-114 | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 40930 | UNICORN | Johnson County, TX | Gas Property | Jan 2025 |
| 40931 | UNICORN UNIT | Borden County, TX | Oil & Gas Property | Jan 2025 |
| 40932 | UNIMIN UNIT | Somervell County, TX | Oil & Gas Property | Jan 2025 |
| 40933 | UNION | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40934 | UNION CENT | Nueces County, TX | Oil & Gas Property | Dec 2024 |
| 40935 | UNION CENTRAL | Denton County, TX | Oil & Gas Property | Jan 2025 |
| 40936 | UNION CENTRAL LIFE INS | Nueces County, TX | Gas Property | Jan 2025 |
| 40937 | UNION CENTRAL-CONDEE WELCH (SA) 1H | Denton County, TX | Oil & Gas Property | Jan 2025 |
| 40938 | UNION HILL | Washington County, TX | Oil & Gas Property | Jan 2025 |
| 40939 | UNION PACIFIC | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40940 | UNION PACIFIC 7 | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40941 | UNION RANCH | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 40942 | UNION VALLEY A | Dawson County, TX | Oil & Gas Property | Feb 2025 |
| 40943 | UNION-STATE | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40944 | UNISON | Tarrant County, TX | Gas Property | Jan 2025 |
| 40945 | UNIT | Wood County, TX | Oil Property | Jan 2025 |
| 40946 | UNITED 1 | Moore County, TX | Gas Property | Jan 2025 |
| 40947 | UNITED PRESBYTERIAN CHURCH | Dawson County, TX | Oil & Gas Property | Aug 2015 |
| 40948 | UNITED RESOURCES 1H | Harrison County, TX | Oil & Gas Property | Jan 2025 |
| 40949 | UNIV | Crockett County, TX | Oil & Gas Property | Nov 2024 |
| 40950 | UNIV | Ward County, TX | Oil & Gas Property | Oct 2024 |
| 40951 | UNIV. -P | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40952 | UNIV. 11 SEC. 1 | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40953 | UNIV. CONSOLIDATED X | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40954 | UNIV2 HR | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40955 | UNIV3 VINCENT2 | Upton County, TX | Oil & Gas Property | Nov 2024 |
| 40956 | UNIV5 | Upton County, TX | Oil & Gas Property | Nov 2022 |
| 40957 | UNIV6 | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40958 | UNIVANISTON | Crane County, TX | Oil & Gas Property | Dec 2024 |
| 40959 | UNIVBAILEY | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 40960 | UNIVCARLA | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40961 | UNIVDANA | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40962 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40963 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40964 | UNIVERSITY | Schleicher County, TX | Oil & Gas Property | Jan 2025 |
| 40965 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40966 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40967 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 40968 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 40969 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 40970 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40971 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Jul 2024 |
| 40972 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40973 | UNIVERSITY | Winkler County, TX | Oil & Gas Property | Jan 2025 |
| 40974 | UNIVERSITY | Reagan County, TX | Oil & Gas Property | Jan 2025 |
| 40975 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40976 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Feb 2025 |
| 40977 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40978 | UNIVERSITY | Pecos County, TX | Oil Property | Jan 2021 |
| 40979 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40980 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Nov 2010 |
| 40981 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 40982 | UNIVERSITY | Reagan County, TX | Oil & Gas Property | Jan 2025 |
| 40983 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Feb 2025 |
| 40984 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40985 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40986 | UNIVERSITY | Schleicher County, TX | Oil & Gas Property | Jan 2025 |
| 40987 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Dec 2024 |
| 40988 | UNIVERSITY | Martin County, TX | Oil & Gas Property | Jan 2025 |
| 40989 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40990 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40991 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40992 | UNIVERSITY | Terrell County, TX | Oil & Gas Property | Jan 2025 |
| 40993 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 40994 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Jan 2025 |
| 40995 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 40996 | UNIVERSITY | Loving County, TX | Oil & Gas Property | Jan 2025 |
| 40997 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 40998 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 40999 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 41000 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2025 |