| 129401 | UNCLE CHES 21 16 FEDERAL COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 129402 | UNCLE CHES 21 16 FEDERAL COM 125H | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 129403 | UNCLE RICHARD STATE COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 129404 | UNCLE RICO | Custer County, OK | Oil & Gas Property | May 2026 |
| 129405 | UNCLE SAM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 129406 | UNCLE SAM 13 | Lea County, NM | Oil & Gas Property | May 2022 |
| 129407 | UNCOMPAGHRE STATE UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 129408 | UNCOMPAHGRE | Grady County, OK | Oil & Gas Property | May 2026 |
| 129409 | UNDAUNTED BSD STATE COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 129410 | UNDER THE BRIDGE 452 | Yoakum County, TX | Oil & Gas Property | May 2026 |
| 129411 | UNDERDAHL | Pondera County, MT | Gas Property | Jul 2017 |
| 129412 | UNDERHILL | Weld County, CO | Oil & Gas Property | May 2026 |
| 129413 | UNDERHILL | Marshall County, OK | Oil Property | Aug 2024 |
| 129414 | UNDERHILL COAL | Clearfield County, PA | Gas Property | Dec 2023 |
| 129415 | UNDERWOOD | Harrison County, TX | Oil & Gas Property | May 2026 |
| 129416 | UNDERWOOD | Andrews County, TX | Oil & Gas Property | May 2026 |
| 129417 | UNDERWOOD | Tyler County, WV | Oil & Gas Property | Dec 2021 |
| 129418 | UNDERWOOD | Kearny County, KS | Gas Property | Apr 2026 |
| 129419 | UNDERWOOD | Caddo Parish, LA | Oil Property | Jan 2025 |
| 129420 | UNDERWOOD | McLean County, KY | Oil Property | Aug 2017 |
| 129421 | UNDERWOOD | Milam County, TX | Oil & Gas Property | May 2026 |
| 129422 | UNDERWOOD | Red River County, TX | Oil & Gas Property | May 2026 |
| 129423 | UNDERWOOD | Greenwood County, KS | Oil Property | Apr 2026 |
| 129424 | UNDERWOOD | Beaver County, OK | Oil & Gas Property | Oct 2018 |
| 129425 | UNDERWOOD | Barton County, KS | Oil Property | Apr 2026 |
| 129426 | UNDERWOOD | Ward County, TX | Oil & Gas Property | May 2026 |
| 129427 | UNDERWOOD | Beaver County, OK | Gas Property | Jan 2024 |
| 129428 | UNDERWOOD | Chautauqua County, KS | Oil Property | Apr 2026 |
| 129429 | UNDERWOOD | Campbell County, WY | Oil & Gas Property | May 2005 |
| 129430 | UNDERWOOD | Stark County, OH | Oil & Gas Property | Dec 2025 |
| 129431 | UNDERWOOD | Coshocton County, OH | Oil & Gas Property | Dec 2025 |
| 129432 | UNDERWOOD | Howard County, TX | Oil & Gas Property | Apr 2026 |
| 129433 | UNDERWOOD | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 129434 | UNDERWOOD | Winkler County, TX | Oil & Gas Property | May 2026 |
| 129435 | UNDERWOOD | Doddridge County, WV | Oil & Gas Property | Oct 2021 |
| 129436 | UNDERWOOD | Faulkner County, AR | Gas Property | Jul 2024 |
| 129437 | UNDERWOOD | Haskell County, OK | Gas Property | May 2026 |
| 129438 | UNDERWOOD | Perry County, OH | Oil & Gas Property | Dec 2025 |
| 129439 | UNDERWOOD 33-7-15 | La Plata County, CO | Gas Property | Apr 2026 |
| 129440 | UNDERWOOD A | Seward County, KS | Oil & Gas Property | Apr 2026 |
| 129441 | UNDERWOOD, CHARLES G | Doddridge County, WV | Gas Property | Dec 2021 |
| 129442 | UNDERWOOD, RALPH | Tyler County, WV | Gas Property | Dec 2021 |
| 129443 | UNDERWOOD, RAYMOND | Tyler County, WV | Oil & Gas Property | Dec 2021 |
| 129444 | UNDERWOOD, RICHARD M | Wetzel County, WV | Oil & Gas Property | Dec 2021 |
| 129445 | UNDERWOOD-BREEN | Denton County, TX | Oil & Gas Property | May 2026 |
| 129446 | UNDERWOOD-JOHNSON 1 | Hutchinson County, TX | Oil & Gas Property | May 2026 |
| 129447 | UNDHJEM 1 | Burke County, ND | Oil & Gas Property | Jun 2026 |
| 129448 | UNDINE | Andrews County, TX | Oil & Gas Property | May 2026 |
| 129449 | UNEY 24-1 | Stanton County, KS | Oil & Gas Property | May 2005 |
| 129450 | UNFORGIVEN 34 113-114 | Ward County, TX | Oil & Gas Property | May 2026 |
| 129451 | UNGER | Armstrong County, PA | Gas Property | Dec 2025 |
| 129452 | UNGER | Monroe County, OH | Oil & Gas Property | Dec 2025 |
| 129453 | UNGER | Decatur County, KS | Oil Property | Aug 1988 |
| 129454 | UNGER | Yuma County, CO | Gas Property | May 2026 |
| 129455 | UNGER | Decatur County, KS | Oil Property | Mar 1995 |
| 129456 | UNGER | Yuma County, CO | Gas Property | May 2026 |
| 129457 | UNGER | Tuscarawas County, OH | Oil & Gas Property | Dec 2025 |
| 129458 | UNGLES | Haskell County, KS | Oil & Gas Property | Apr 2026 |
| 129459 | UNGLES | Haskell County, KS | Oil & Gas Property | Mar 2026 |
| 129460 | UNGLES | Haskell County, KS | Gas Property | Apr 2026 |
| 129461 | UNGUREAN | Coshocton County, OH | Oil & Gas Property | Dec 2025 |
| 129462 | UNI-UPR | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 129463 | UNICORN | Johnson County, TX | Gas Property | May 2026 |
| 129464 | UNICORN UNIT | Borden County, TX | Oil & Gas Property | Apr 2026 |
| 129465 | UNIMIN UNIT | Somervell County, TX | Oil & Gas Property | May 2026 |
| 129466 | UNION | Kern County, CA | Oil & Gas Property | Jun 2024 |
| 129467 | UNION | Union Parish, LA | Gas Property | Dec 2024 |
| 129468 | UNION | Hodgeman County, KS | Oil Property | Mar 2025 |
| 129469 | UNION | Garfield County, CO | Oil & Gas Property | May 2026 |
| 129470 | UNION | Union Parish, LA | Gas Property | Dec 2000 |
| 129471 | UNION | Orange County, CA | Oil & Gas Property | Jun 2026 |
| 129472 | UNION | Fremont County, WY | Oil & Gas Property | Oct 2017 |
| 129473 | UNION | Andrews County, TX | Oil & Gas Property | May 2026 |
| 129474 | UNION | Chaves County, NM | Oil Property | Feb 2007 |
| 129475 | UNION 33 FEDERAL | Chaves County, NM | Gas Property | Jul 2024 |
| 129476 | UNION 35 FEDERAL | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 129477 | UNION ANNEX | Santa Barbara County, CA | Oil & Gas Property | Mar 1986 |
| 129478 | UNION BANK | Kern County, CA | Oil & Gas Property | May 2026 |
| 129479 | UNION CAMP | Tuscarawas County, OH | Oil & Gas Property | Dec 2025 |
| 129480 | UNION CARB | Noble County, OH | Oil & Gas Property | Dec 2025 |
| 129481 | UNION CARBIDE | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 129482 | UNION CARBIDE CORP | Washington County, OH | Oil & Gas Property | Dec 1986 |
| 129483 | UNION CENT | Nueces County, TX | Oil & Gas Property | May 2026 |
| 129484 | UNION CENTRAL | Wilson County, KS | Oil & Gas Property | Sep 2024 |
| 129485 | UNION CENTRAL | Denton County, TX | Oil & Gas Property | May 2026 |
| 129486 | UNION CENTRAL LIFE INS | Nueces County, TX | Gas Property | May 2026 |
| 129487 | UNION CENTRAL-CONDEE WELCH (SA) 1H | Denton County, TX | Oil & Gas Property | May 2026 |
| 129488 | UNION CITY | Canadian County, OK | Oil & Gas Property | May 2026 |
| 129489 | UNION DARBONNE | Ouachita Parish, LA | Gas Property | Nov 2024 |
| 129490 | UNION GOVT | Grand County, UT | Oil & Gas Property | Jun 2026 |
| 129491 | UNION HILL | Washington County, TX | Oil & Gas Property | May 2026 |
| 129492 | UNION KING FEE | Kern County, CA | Oil & Gas Property | Sep 1986 |
| 129493 | UNION LAND CO | Harrison County, WV | Oil & Gas Property | Dec 2021 |
| 129494 | UNION PACIFIC | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 129495 | UNION PACIFIC | Sweetwater County, WY | Oil & Gas Property | Apr 2009 |
| 129496 | UNION PACIFIC | Albany County, WY | Oil Property | Jun 2026 |
| 129497 | UNION PACIFIC | Crockett County, TX | Oil & Gas Property | May 2026 |
| 129498 | UNION PACIFIC 7 | Crockett County, TX | Oil & Gas Property | May 2026 |
| 129499 | UNION POWER C | Union Parish, LA | Gas Property | Dec 2024 |
| 129500 | UNION PROD | Union Parish, LA | Gas Property | Dec 2024 |