| 41001 | UNIVERSITY 38 BLOCK UNIT 3819 | Crockett County, TX | Oil & Gas Property | Dec 2017 |
| 41002 | UNIVERSITY 45 | Crockett County, TX | Oil & Gas Property | Dec 2024 |
| 41003 | UNIVERSITY BL | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41004 | UNIVERSITY BLK 9 WOLFCAMP UNIT | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41005 | UNIVERSITY CITIES SERVICE | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 41006 | UNIVERSITY CONS | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41007 | UNIVERSITY CONSOLIDATED IX | Andrews County, TX | Oil & Gas Property | Aug 2016 |
| 41008 | UNIVERSITY CONSOLIDATED XIII | Andrews County, TX | Oil & Gas Property | Dec 2024 |
| 41009 | UNIVERSITY GREAT PLAINS -B | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 41010 | UNIVERSITY LANDS | Edwards County, TX | Oil & Gas Property | Jan 2025 |
| 41011 | UNIVERSITY MCFARLAND 8 UNIT | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41012 | UNIVERSITY SAN ANDRES UNIT | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41013 | UNIVERSITY SOUTHERN MINERALS | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41014 | UNIVERSITY TB(SHALLOW) UNIT A-1 | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41015 | UNIVERSITY WADDELL DEVONIAN UNIT | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41016 | UNIVERSITY WEST | Tarrant County, TX | Gas Property | Jan 2025 |
| 41017 | UNIVERSITY/ENERGEN GRAYBURG UNIT | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41018 | UNIVERSITYVINCENT | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 41019 | UNIVJENNY | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41020 | UNIVKEISHA | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 41021 | UNIVKENNEDY | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41022 | UNIVKIMRA | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41023 | UNIVKRISTIN | Crane County, TX | Oil & Gas Property | Dec 2024 |
| 41024 | UNIVLINDSAY | Crane County, TX | Oil & Gas Property | Dec 2024 |
| 41025 | UNIVMICHELLE | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41026 | UNIVMISTY | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 41027 | UNIVNATALIE | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 41028 | UNIVNICHOLE | Crockett County, TX | Oil & Gas Property | Jan 2025 |
| 41029 | UNIVPAYTON | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41030 | UNIVSAMANTHA | Crane County, TX | Oil & Gas Property | Jan 2025 |
| 41031 | UNIVSHANNON | Crane County, TX | Oil Property | Jan 2025 |
| 41032 | UNIVSHERRY | Crane County, TX | Oil & Gas Property | Dec 2024 |
| 41033 | UNIVTARA | Reagan County, TX | Oil & Gas Property | Jan 2025 |
| 41034 | UNIVTAYLOR | Crane County, TX | Oil & Gas Property | Dec 2024 |
| 41035 | UNIVWANDA | Andrews County, TX | Oil & Gas Property | Dec 2023 |
| 41036 | UNO NUMERO | Dawson County, TX | Oil & Gas Property | Jan 2025 |
| 41037 | UNOCAL 940 | Garza County, TX | Oil & Gas Property | Jan 2025 |
| 41038 | UNRUH | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 41039 | UNRUH | Ochiltree County, TX | Oil & Gas Property | Jan 2025 |
| 41040 | UNSICKER | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 41041 | UPCHURCH | Grimes County, TX | Oil & Gas Property | Jan 2025 |
| 41042 | UPCHURCH | Lavaca County, TX | Oil & Gas Property | Dec 2024 |
| 41043 | UPSHAW | Stonewall County, TX | Oil & Gas Property | Jan 2025 |
| 41044 | UPTON | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 41045 | UPTON | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 41046 | UPTON | Upton County, TX | Oil & Gas Property | Jan 2025 |
| 41047 | UPTON | Upton County, TX | Oil & Gas Property | Feb 2022 |
| 41048 | URAL | Shelby County, TX | Oil & Gas Property | Jan 2025 |
| 41049 | URBAN | Liberty County, TX | Oil & Gas Property | Jan 2025 |
| 41050 | URBAN | Bastrop County, TX | Oil & Gas Property | Nov 2022 |
| 41051 | URBAN JONES 122 | Ochiltree County, TX | Oil & Gas Property | Jan 2025 |
| 41052 | URBAN ROBERT H | Ochiltree County, TX | Oil & Gas Property | Jan 2025 |
| 41053 | URBAN-BRACEY OU #1 | Austin County, TX | Oil & Gas Property | Jan 2025 |
| 41054 | URBANCZYK | Gray County, TX | Gas Property | Jan 2025 |
| 41055 | URBANCZYK | Gray County, TX | Oil & Gas Property | Dec 2024 |
| 41056 | URBANCZYK | Carson County, TX | Oil & Gas Property | Jan 2025 |
| 41057 | URBANCZYK -B | Carson County, TX | Gas Property | Jan 2025 |
| 41058 | URBANCZYK UNIT | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 41059 | URBANOSKY | Burleson County, TX | Oil & Gas Property | Dec 2024 |
| 41060 | URBANOVSKY UNIT | Burleson County, TX | Oil & Gas Property | Dec 2024 |
| 41061 | URIAH OL | Grimes County, TX | Oil & Gas Property | Jan 2025 |
| 41062 | URIBE | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 41063 | URIBE | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 41064 | URIBE | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 41065 | URIBE FAMILY TRUST | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 41066 | URIBE SERAFIN | Zapata County, TX | Oil & Gas Property | Jan 2025 |
| 41067 | URIBE, ROSITA | Webb County, TX | Oil & Gas Property | Jan 2025 |
| 41068 | URIBE-M DEMARTINEZ GAS UNIT 1 | Zapata County, TX | Gas Property | Jan 2025 |
| 41069 | URRUTIA UNIT | Karnes County, TX | Oil & Gas Property | Jan 2025 |
| 41070 | URSCHEL | Hemphill County, TX | Oil & Gas Property | Jan 2025 |
| 41071 | URSCHEL C.F | Starr County, TX | Oil & Gas Property | Jul 2019 |
| 41072 | URSULA | Howard County, TX | Oil & Gas Property | Jan 2025 |
| 41073 | URSULA BIG DADDY | Howard County, TX | Oil & Gas Property | Jan 2025 |
| 41074 | URSULA TOMCAT | Howard County, TX | Oil & Gas Property | Jan 2025 |
| 41075 | US LIME | Johnson County, TX | Oil & Gas Property | Jan 2025 |
| 41076 | USA 1 | Starr County, TX | Oil & Gas Property | Jan 2025 |
| 41077 | USA 2 | Starr County, TX | Oil & Gas Property | Jan 2025 |
| 41078 | USA 237-21 | Wise County, TX | Oil & Gas Property | Jan 2025 |
| 41079 | USA 3 | Starr County, TX | Oil & Gas Property | Jan 2025 |
| 41080 | USA 5H | Shelby County, TX | Oil & Gas Property | Jan 2025 |
| 41081 | USA 81006 | Wise County, TX | Oil & Gas Property | Jan 2025 |
| 41082 | USA A | Shelby County, TX | Oil & Gas Property | Jan 2025 |
| 41083 | USA BL | San Augustine County, TX | Oil & Gas Property | Jan 2025 |
| 41084 | USA COLDSPRING | San Jacinto County, TX | Oil & Gas Property | Jan 2025 |
| 41085 | USA COMMANDO UNIT | Shelby County, TX | Gas Property | Jan 2025 |
| 41086 | USA COTHROM UNIT | Shelby County, TX | Gas Property | Jan 2025 |
| 41087 | USA COTHROM UNIT | Shelby County, TX | Gas Property | Jan 2025 |
| 41088 | USA FUEL UNIT 1HB | Shelby County, TX | Gas Property | Dec 2024 |
| 41089 | USA SANDMAN UNIT 1HB | Shelby County, TX | Gas Property | Dec 2024 |
| 41090 | USA TRUST | Denton County, TX | Oil & Gas Property | Jan 2025 |
| 41091 | USA-BRI | Shelby County, TX | Oil & Gas Property | Jan 2025 |
| 41092 | USA-ELLINGTON | Shelby County, TX | Oil & Gas Property | Jan 2025 |
| 41093 | USA-LOCK | Shelby County, TX | Oil & Gas Property | Jan 2025 |
| 41094 | USA-NM-A-197 | Houston County, TX | Oil & Gas Property | Jan 2025 |
| 41095 | USA-RAVEN FOREST | Montgomery County, TX | Oil & Gas Property | Jan 2025 |
| 41096 | USFW 1 | Hidalgo County, TX | Oil & Gas Property | Jan 2025 |
| 41097 | USHER | San Patricio County, TX | Oil & Gas Property | Nov 2024 |
| 41098 | USM ET AL GAS UNIT 1 | Pecos County, TX | Oil & Gas Property | Jan 2025 |
| 41099 | USM QUEEN UNIT 1 | Pecos County, TX | Oil Property | Apr 2024 |
| 41100 | USZYNSKI-FURLOW (SA) | Karnes County, TX | Oil & Gas Property | Jan 2025 |