| 1 | U 2 RANCH | Parker County, TX | Oil & Gas Property | Jan 2025 |
| 2 | U DA WELL | San Juan County, NM | Gas Property | Mar 2025 |
| 3 | U F G CO FEE TRACT | Lincoln County, WV | Oil & Gas Property | Dec 2021 |
| 4 | U F G CO FEE TRACT NO 4 6 | Lincoln County, WV | Gas Property | Dec 2021 |
| 5 | U F G CO MIN | Logan County, WV | Oil & Gas Property | Dec 2021 |
| 6 | U F G CO MIN TR | Lincoln County, WV | Gas Property | Dec 2021 |
| 7 | U F G CO MINERAL TRACT 6 | Lincoln County, WV | Gas Property | Dec 2021 |
| 8 | U F GAS | Logan County, WV | Gas Property | Dec 2021 |
| 9 | U I POTTER D-1 | Finney County, KS | Oil & Gas Property | Oct 2024 |
| 10 | U OF A | Jefferson County, AL | Gas Property | Apr 2020 |
| 11 | U OF A | Tuscaloosa County, AL | Gas Property | Jun 2024 |
| 12 | U OF A | Jefferson County, AL | Gas Property | May 2020 |
| 13 | U P R R | Rio Blanco County, CO | Oil & Gas Property | Feb 2025 |
| 14 | U S A 0 | Bossier Parish, LA | Oil & Gas Property | Dec 2024 |
| 15 | U S A 1 | Franklin County, MS | Oil Property | Feb 1987 |
| 16 | U S A 1 | Amite County, MS | Oil & Gas Property | Mar 2025 |
| 17 | U S A 1 | Adams County, MS | Oil Property | Jul 1988 |
| 18 | U S A 2 | Franklin County, MS | Oil & Gas Property | Feb 2025 |
| 19 | U S A 2 | Franklin County, MS | Oil & Gas Property | Mar 2000 |
| 20 | U S A 2 | Adams County, MS | Oil & Gas Property | Feb 2003 |
| 21 | U S A 29 | Franklin County, MS | Oil & Gas Property | Mar 2025 |
| 22 | U S A 3 | Wayne County, MS | Oil & Gas Property | Jul 1993 |
| 23 | U S A 3 | Adams County, MS | Oil & Gas Property | Oct 1999 |
| 24 | U S A 3 | Franklin County, MS | Oil Property | Feb 2025 |
| 25 | U S A 3 | Franklin County, MS | Oil Property | Oct 1978 |
| 26 | U S A 4 | Franklin County, MS | Oil & Gas Property | Jan 1995 |
| 27 | U S A 7 | Adams County, MS | Oil & Gas Property | Mar 2025 |
| 28 | U S A 73 | Adams County, MS | Oil Property | May 1992 |
| 29 | U S A A | Franklin County, MS | Oil & Gas Property | Jan 1986 |
| 30 | U S A B | Adams County, MS | Oil & Gas Property | Mar 2025 |
| 31 | U S A C | Adams County, MS | Oil Property | Mar 1998 |
| 32 | U S A E | Franklin County, MS | Oil & Gas Property | Feb 2025 |
| 33 | U S A MENTOR | Oscoda County, MI | Oil & Gas Property | Mar 2025 |
| 34 | U S A-PAN AM | Adams County, MS | Oil & Gas Property | Jul 1994 |
| 35 | U S A-PICEANCE CREEK | Rio Blanco County, CO | Oil & Gas Property | Mar 2025 |
| 36 | U S A-PICEANCE CREEK | Rio Blanco County, CO | Oil & Gas Property | Mar 2025 |
| 37 | U S ARGO | San Juan County, NM | Oil & Gas Property | Mar 2025 |
| 38 | U S CONCRETE | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 39 | U S DEPARTMENT OF INT (BLM) | Clay County, KY | Gas Property | Dec 2023 |
| 40 | U S F S | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 41 | U S F S | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 42 | U S F S & R I STOVER KB | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 43 | U S F S LOT 201 KC | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 44 | U S FOREST SERVICE | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 45 | U S FOREST SERVICE | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 46 | U S FOREST SERVICE | Leslie County, KY | Oil & Gas Property | Dec 2023 |
| 47 | U S FOREST SVC CENTRAL PA LUMBER | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 48 | U S FORESTRY SERVICE 00 | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 49 | U S GOVERNMENT | Caddo Parish, LA | Oil Property | Dec 2024 |
| 50 | U S GOVERNMENT | Whitley County, KY | Oil & Gas Property | Dec 2023 |
| 51 | U S GOVERNMENT | Leslie County, KY | Oil & Gas Property | Dec 2022 |
| 52 | U S GOVERNMENT | Haskell County, OK | Gas Property | Feb 2025 |
| 53 | U S GOVERNMENT NATL FOREST | Warren County, PA | Oil & Gas Property | Dec 2019 |
| 54 | U S GOVT/ARMSTRONG FOREST | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 55 | U S GYPSUM | Kent County, MI | Oil Property | Apr 2024 |
| 56 | U S LIME | Johnson County, TX | Oil & Gas Property | Feb 2025 |
| 57 | U S M 00 | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 58 | U S P & F | Tuscaloosa County, AL | Gas Property | Dec 2024 |
| 59 | U S SMELTING FEDERAL | Lea County, NM | Oil & Gas Property | Jan 2015 |
| 60 | U S STEEL | Greene County, PA | Gas Property | Dec 2024 |
| 61 | U S STEEL | Mingo County, WV | Gas Property | Dec 2021 |
| 62 | U S STEEL CORPORATION | Jefferson County, AL | Gas Property | Feb 2025 |
| 63 | U T ISERINGHAUSEN | St. Landry Parish, LA | Oil & Gas Property | Mar 2024 |
| 64 | U-TEX | Ward County, TX | Oil & Gas Property | Feb 2025 |
| 65 | U-TEX | Andrews County, TX | Oil & Gas Property | Feb 2025 |
| 66 | U-TEX | Crane County, TX | Oil & Gas Property | Feb 2024 |
| 67 | U. F. GAS MIN TR. 1 6 | Wayne County, WV | Gas Property | Dec 2021 |
| 68 | U. L. JONES 28-7 #1 | Conecuh County, AL | Oil & Gas Property | Feb 2025 |
| 69 | U. OF C | Kern County, CA | Oil & Gas Property | Mar 2025 |
| 70 | U. S. GOVER | Gove County, KS | Oil Property | Jan 2025 |
| 71 | U. S. GOVERNMENT | Morton County, KS | Gas Property | Jan 2025 |
| 72 | U. S. GOVERNMENT | Trego County, KS | Oil Property | Dec 2024 |
| 73 | U.C. REGENTS | Yolo County, CA | Gas Property | Dec 1992 |
| 74 | U.C.B. 0 | Santa Barbara County, CA | Oil & Gas Property | May 1998 |
| 75 | U.C.L.I | Nueces County, TX | Oil & Gas Property | Feb 2025 |
| 76 | U.P. UNIT | Los Angeles County, CA | Oil & Gas Property | May 2021 |
| 77 | U.R.C. 23 | Glasscock County, TX | Oil & Gas Property | Feb 2025 |
| 78 | U.S ARMY CORP | Lewis County, WV | Oil & Gas Property | Dec 2021 |
| 79 | U.S. 15 | Blaine County, MT | Gas Property | Mar 2025 |
| 80 | U.S. 19-1 | Chouteau County, MT | Gas Property | Mar 2025 |
| 81 | U.S. 26-1 | Blaine County, MT | Gas Property | Mar 2025 |
| 82 | U.S. 27-1 | Blaine County, MT | Gas Property | Mar 2025 |
| 83 | U.S. 29-1 | Blaine County, MT | Gas Property | Jul 2001 |
| 84 | U.S. 33 | Chouteau County, MT | Gas Property | Mar 2025 |
| 85 | U.S. ARMY CORP OF ENG | Wyoming County, WV | Gas Property | Dec 2021 |
| 86 | U.S. ARMY CORP OF ENG. I. N. BROWN | Braxton County, WV | Oil & Gas Property | Dec 2021 |
| 87 | U.S. ARMY CORP. OF ENG | Lewis County, WV | Oil & Gas Property | Dec 2015 |
| 88 | U.S. DEPT. OF INTERIOR | Lewis County, WV | Gas Property | Dec 2021 |
| 89 | U.S. PIPE & FOUNDRY | Tuscaloosa County, AL | Gas Property | Dec 2024 |
| 90 | U.S. PIPE & FOUNDRY | Jefferson County, AL | Gas Property | Jan 2009 |
| 91 | U.S. PIPE & FOUNDRY #1 | Tuscaloosa County, AL | Gas Property | Jan 2017 |
| 92 | U.S. STEEL | Walker County, AL | Gas Property | Feb 2025 |
| 93 | U.S. STEEL | Jefferson County, AL | Gas Property | Feb 2025 |
| 94 | U.S. STEEL | Shelby County, AL | Gas Property | Dec 2000 |
| 95 | U.S. STEEL | Wyoming County, WV | Gas Property | Oct 2005 |
| 96 | U.S. STEEL | Mingo County, WV | Gas Property | Dec 2021 |
| 97 | U.S. STEEL | Fayette County, AL | Oil & Gas Property | Feb 2025 |
| 98 | U.S. STEEL 3 | Tuscaloosa County, AL | Gas Property | Dec 2024 |
| 99 | U.S. STEEL MINING CO | McDowell County, WV | Gas Property | Jun 1999 |
| 100 | U.S. STEEL MINING CO | Wyoming County, WV | Gas Property | Dec 2021 |