| Property Name | Property Location | Property Type | Most Recent Production | |
|---|---|---|---|---|
| 128101 | U S SMELTING FEDERAL | Lea County, NM | Oil & Gas Property | Jan 2015 |
| 128102 | U S STEEL | Greene County, PA | Gas Property | Dec 2025 |
| 128103 | U S STEEL | Mingo County, WV | Gas Property | Dec 2021 |
| 128104 | U S STEEL CORPORATION | Jefferson County, AL | Gas Property | Mar 2026 |
| 128105 | U T ISERINGHAUSEN | St. Landry Parish, LA | Oil & Gas Property | Mar 2024 |
| 128106 | U-TEX | Ward County, TX | Oil & Gas Property | Nov 2025 |
| 128107 | U-TEX | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 128108 | U-TEX | Crane County, TX | Oil & Gas Property | Feb 2024 |
| 128109 | U-TEX 82686 | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 128110 | U. F. GAS MIN TR. 1 6 | Wayne County, WV | Gas Property | Dec 2021 |
| 128111 | U. L. JONES 28-7 #1 | Conecuh County, AL | Oil & Gas Property | Mar 2026 |
| 128112 | U. OF C | Kern County, CA | Oil & Gas Property | Mar 2026 |
| 128113 | U. S. GOVER | Gove County, KS | Oil Property | Dec 2025 |
| 128114 | U. S. GOVERNMENT | Morton County, KS | Gas Property | Feb 2026 |
| 128115 | U. S. GOVERNMENT | Trego County, KS | Oil Property | Dec 2025 |
| 128116 | U.C. REGENTS | Yolo County, CA | Gas Property | Dec 1992 |
| 128117 | U.C.B. 0 | Santa Barbara County, CA | Oil & Gas Property | May 1998 |
| 128118 | U.C.L.I | Nueces County, TX | Oil & Gas Property | Mar 2026 |
| 128119 | U.P. UNIT | Los Angeles County, CA | Oil & Gas Property | May 2021 |
| 128120 | U.R.C. 23 | Glasscock County, TX | Oil & Gas Property | Mar 2026 |
| 128121 | U.S 19-15 | Chouteau County, MT | Gas Property | Apr 2026 |
| 128122 | U.S ARMY CORP | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 128123 | U.S. 15 | Blaine County, MT | Gas Property | Apr 2026 |
| 128124 | U.S. 26-1 | Blaine County, MT | Gas Property | Mar 2026 |
| 128125 | U.S. 27-1 | Blaine County, MT | Gas Property | Apr 2026 |
| 128126 | U.S. 29-1 | Blaine County, MT | Gas Property | Jul 2001 |
| 128127 | U.S. 33 | Chouteau County, MT | Gas Property | Apr 2026 |
| 128128 | U.S. ARMY CORP OF ENG | Wyoming County, WV | Gas Property | Dec 2021 |
| 128129 | U.S. ARMY CORP OF ENG. I. N. BROWN | Braxton County, WV | Oil & Gas Property | Dec 2021 |
| 128130 | U.S. ARMY CORP. OF ENG | Lewis County, WV | Oil & Gas Property | Dec 2015 |
| 128131 | U.S. DEPT. OF INTERIOR | Lewis County, WV | Gas Property | Dec 2021 |
| 128132 | U.S. PIPE & FOUNDRY | Tuscaloosa County, AL | Gas Property | Mar 2026 |
| 128133 | U.S. PIPE & FOUNDRY | Jefferson County, AL | Gas Property | Jan 2009 |
| 128134 | U.S. PIPE & FOUNDRY #1 | Tuscaloosa County, AL | Gas Property | Jan 2017 |
| 128135 | U.S. STEEL | Walker County, AL | Gas Property | Feb 2026 |
| 128136 | U.S. STEEL | Jefferson County, AL | Gas Property | Mar 2026 |
| 128137 | U.S. STEEL | Shelby County, AL | Gas Property | Dec 2000 |
| 128138 | U.S. STEEL | Wyoming County, WV | Gas Property | Oct 2005 |
| 128139 | U.S. STEEL | Mingo County, WV | Gas Property | Dec 2021 |
| 128140 | U.S. STEEL | Fayette County, AL | Oil & Gas Property | Feb 2026 |
| 128141 | U.S. STEEL 3 | Tuscaloosa County, AL | Gas Property | Mar 2026 |
| 128142 | U.S. STEEL MINING CO | McDowell County, WV | Gas Property | Jun 1999 |
| 128143 | U.S. STEEL MINING CO | Wyoming County, WV | Gas Property | Dec 2021 |
| 128144 | U.S.-DIR 1 | Blaine County, MT | Gas Property | Apr 2026 |
| 128145 | U.S.A. #1 | Bryan County, OK | Oil & Gas Property | Mar 2026 |
| 128146 | U.S.A. 1 | Kern County, CA | Oil Property | Feb 2026 |
| 128147 | U.S.A. 1 | Hocking County, OH | Oil & Gas Property | Dec 2025 |
| 128148 | U.S.A. 2 | Kern County, CA | Oil Property | Feb 2026 |
| 128149 | U.S.A. 5 | Kern County, CA | Oil Property | Aug 2011 |
| 128150 | U.S.A. LB | Nacogdoches County, TX | Oil & Gas Property | Feb 2026 |
| 128151 | U.S.A.-GUERRA B GAS UNIT | Starr County, TX | Oil & Gas Property | Mar 2026 |
| 128152 | U.S.A.3 | Franklin County, MS | Oil & Gas Property | Apr 2026 |
| 128153 | U.S.ARMY CORP OF ENG | Wayne County, WV | Gas Property | Dec 2021 |
| 128154 | U.S.F.S | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 128155 | U.S.FISH&WILDLIFE S | Pleasants County, WV | Oil & Gas Property | Dec 2020 |
| 128156 | U.S.L. 1 | Kern County, CA | Oil Property | Feb 2026 |
| 128157 | U.S.L. 1 | Kern County, CA | Oil Property | Feb 2026 |
| 128158 | U.S.L. 2 | Kern County, CA | Oil Property | Feb 2026 |
| 128159 | U.S.L. 2 | Kern County, CA | Oil Property | Feb 2026 |
| 128160 | U.S.L. 3 | Kern County, CA | Oil Property | Feb 2026 |
| 128161 | U.S.L. 3 | Kern County, CA | Oil Property | Feb 2026 |
| 128162 | U.S.L. 4 | Kern County, CA | Oil Property | Nov 2021 |
| 128163 | U.S.L. 4 | Kern County, CA | Oil Property | Feb 2026 |
| 128164 | U.S.L. 5 | Kern County, CA | Oil Property | Feb 2026 |
| 128165 | U.S.L. 6 | Kern County, CA | Oil Property | Feb 2026 |
| 128166 | U.S.L. 7 | Kern County, CA | Oil Property | Feb 2026 |
| 128167 | U.S.L. 8 | Kern County, CA | Oil & Gas Property | Feb 2026 |
| 128168 | U.S.STEEL MINING | Wyoming County, WV | Gas Property | Dec 2021 |
| 128169 | U.S.X. CORP | Jefferson County, AL | Gas Property | Aug 1990 |
| 128170 | U.S.X.-TAURUS-88-18-06 | Jefferson County, AL | Gas Property | Mar 2026 |
| 128171 | U.T. 3064 A | Irion County, TX | Oil & Gas Property | Mar 2026 |
| 128172 | UA 88 | Jefferson County, AL | Gas Property | Mar 2022 |
| 128173 | UA-04-19-07-02 | Jefferson County, AL | Gas Property | Mar 2026 |
| 128174 | UA-TAURUS | Jefferson County, AL | Gas Property | Jun 2025 |
| 128175 | UB 13 | Andrews County, TX | Oil & Gas Property | Mar 2026 |
| 128176 | UBER | Indiana County, PA | Gas Property | Dec 2025 |
| 128177 | UBERNOSKY | Burleson County, TX | Oil & Gas Property | Feb 2026 |
| 128178 | UBERT | Ellis County, KS | Oil Property | Feb 2026 |
| 128179 | UC MILES | Clarion County, PA | Gas Property | Dec 2025 |
| 128180 | UCBH WW FEDERAL | Eddy County, NM | Oil & Gas Property | Oct 2019 |
| 128181 | UCKER | Hocking County, OH | Oil & Gas Property | Dec 2025 |
| 128182 | UCLI | Renville County, ND | Oil Property | Aug 2020 |
| 128183 | UCLI | Petroleum County, MT | Oil Property | Apr 2026 |
| 128184 | UCLI-SISK | Bottineau County, ND | Oil & Gas Property | Feb 2003 |
| 128185 | UCLI-STRATTON | Bottineau County, ND | Oil & Gas Property | Apr 2026 |
| 128186 | UCOLO | San Juan County, UT | Oil & Gas Property | Jul 2024 |
| 128187 | UCROSS CS FED | Campbell County, WY | Gas Property | Oct 2014 |
| 128188 | UDECK | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 128189 | UDF 50 | Kern County, CA | Oil & Gas Property | Oct 1987 |
| 128190 | UEHLIN | Decatur County, KS | Oil Property | Jul 2025 |
| 128191 | UEHLING | Hodgeman County, KS | Oil Property | Jan 2026 |
| 128192 | UEHLING | Ness County, KS | Oil Property | Feb 2026 |
| 128193 | UEHLING | Ness County, KS | Oil Property | Feb 2026 |
| 128194 | UERLING | Sequoyah County, OK | Gas Property | May 2013 |
| 128195 | UGA (AW) 1H | Harrison County, TX | Oil & Gas Property | Mar 2026 |
| 128196 | UGLIUZZA (05-006 | Bradford County, PA | Gas Property | Mar 2026 |
| 128197 | UGLY | Ward County, TX | Oil & Gas Property | Mar 2026 |
| 128198 | UGLY STIK STATE | Eddy County, NM | Oil & Gas Property | Apr 2010 |
| 128199 | UHL 1 | Comanche County, KS | Oil Property | Feb 2026 |
| 128200 | UHL JACOB | Holmes County, OH | Oil Property | Dec 2012 |