| 1 | U D SAWYER | Lea County, NM | Oil & Gas Property | Mar 1997 |
| 2 | U DA WELL | San Juan County, NM | Gas Property | Oct 2025 |
| 3 | U S ARGO | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 4 | U S M 00 | Lea County, NM | Oil & Gas Property | Jul 2025 |
| 5 | U S SMELTING FEDERAL | Lea County, NM | Oil & Gas Property | Jan 2015 |
| 6 | UCBH WW FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2019 |
| 7 | UGLY STIK STATE | Eddy County, NM | Oil & Gas Property | Apr 2010 |
| 8 | ULIBARRI GAS COM | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 9 | ULTRA U A STATE | Chaves County, NM | Oil & Gas Property | Oct 2025 |
| 10 | ULURU 35 FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 11 | UNCLE CHES 21 16 FEDERAL COM | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 12 | UNCLE CHES 21 16 FEDERAL COM 125H | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 13 | UNCLE RICHARD STATE COM | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 14 | UNCLE SAM | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 15 | UNCLE SAM 13 | Lea County, NM | Oil & Gas Property | May 2022 |
| 16 | UNDAUNTED BSD STATE COM | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 17 | UNION | Chaves County, NM | Oil Property | Feb 2007 |
| 18 | UNION 33 FEDERAL | Chaves County, NM | Gas Property | Jul 2024 |
| 19 | UNION 35 FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 20 | UNION SI FEDERAL | Chaves County, NM | Oil & Gas Property | Jul 2022 |
| 21 | UNION STATE | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 22 | UNION STATE | Lea County, NM | Oil & Gas Property | Dec 2005 |
| 23 | UNITED ROYALTY A | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 24 | UNO STATE | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 25 | UNOCAL | Eddy County, NM | Oil Property | Apr 1998 |
| 26 | UNOCAL AH U FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2024 |
| 27 | UNOCAL-HPC FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 28 | UPTEGROVE | San Juan County, NM | Gas Property | Oct 2025 |
| 29 | UPTEGROVE GAS COM | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 30 | URANINITE 32 33 STATE FEDERAL COM | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 31 | URQUIDEZ | Eddy County, NM | Oil & Gas Property | Aug 2023 |
| 32 | URRACA 11 AV FEDERAL COM | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 33 | URRACA FEDERAL | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 34 | URSA 27 B2EH FEDERAL COM | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 35 | URSA 27 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 36 | URSA MAJOR 8 FEDERAL | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 37 | USA 9 FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 38 | USA BOURDON 18 | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 39 | USA GENTLE | San Juan County, NM | Gas Property | Jun 2025 |
| 40 | USG SECTION 1 | San Juan County, NM | Oil Property | Sep 2025 |
| 41 | USHANKA FEDERAL COM | Lea County, NM | Oil & Gas Property | Oct 2025 |
| 42 | USSELMAN GAS COM | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 43 | UTE 0 | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 44 | UTE 00 | San Juan County, NM | Oil Property | Apr 2019 |
| 45 | UTE 3 | San Juan County, NM | Oil & Gas Property | Apr 2016 |
| 46 | UTE INDIAN | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 47 | UTE INDIANS | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 48 | UTE MOUNTAIN TRIBAL | San Juan County, NM | Oil & Gas Property | Oct 2025 |
| 49 | UTE MTN B | San Juan County, NM | Oil Property | Apr 2019 |
| 50 | UTTON | San Juan County, NM | Gas Property | Oct 2025 |