| 601 | UNIT ALVA DIXON | Carbon County, WY | Oil & Gas Property | Jan 2024 |
| 602 | UNIT B THOMPSON FEE | Crook County, WY | Oil Property | Feb 2024 |
| 603 | UNIT BASTON | Park County, WY | Oil & Gas Property | Feb 2024 |
| 604 | UNIT BOLES B-41776 | Weston County, WY | Oil & Gas Property | May 1986 |
| 605 | UNIT BOYLAN | Big Horn County, WY | Oil & Gas Property | May 2007 |
| 606 | UNIT ELK PATENT | Park County, WY | Oil & Gas Property | Feb 2024 |
| 607 | UNIT FEDERAL | Converse County, WY | Oil & Gas Property | Feb 2024 |
| 608 | UNIT FEDERAL 1 | Natrona County, WY | Oil & Gas Property | Feb 2024 |
| 609 | UNIT GRAHAM | Weston County, WY | Oil & Gas Property | Nov 2023 |
| 610 | UNIT HANSON FEE | Weston County, WY | Oil & Gas Property | Dec 2023 |
| 611 | UNIT HUGHES PATENT | Weston County, WY | Oil & Gas Property | Mar 1994 |
| 612 | UNIT IV W | Sweetwater County, WY | Oil & Gas Property | Feb 2024 |
| 613 | UNIT LINCOLN | Big Horn County, WY | Oil Property | Nov 2006 |
| 614 | UNIT LOGAN B-41864 | Weston County, WY | Oil & Gas Property | Apr 1981 |
| 615 | UNIT MACK PATENT | Park County, WY | Oil & Gas Property | Feb 2024 |
| 616 | UNIT MCMAHON FEE 1 | Park County, WY | Oil & Gas Property | Feb 2024 |
| 617 | UNIT NIELSON C-66530 7 | Park County, WY | Oil & Gas Property | Feb 2024 |
| 618 | UNIT NO. 4 | Kern County, CA | Oil Property | Aug 1988 |
| 619 | UNIT NPRR PATENT | Park County, WY | Oil & Gas Property | Feb 2024 |
| 620 | UNIT NPRR PATENT | Park County, WY | Oil & Gas Property | Feb 2024 |
| 621 | UNIT PATENT | Sweetwater County, WY | Oil & Gas Property | Feb 2024 |
| 622 | UNIT PATENT | Campbell County, WY | Oil & Gas Property | Jul 2015 |
| 623 | UNIT PATENT | Crook County, WY | Oil & Gas Property | Feb 2024 |
| 624 | UNIT PATENT | Park County, WY | Oil & Gas Property | Feb 2024 |
| 625 | UNIT PATENTED | Converse County, WY | Oil & Gas Property | May 2023 |
| 626 | UNIT PATENTED | Natrona County, WY | Oil Property | Feb 2024 |
| 627 | UNIT PATENTED | Johnson County, WY | Oil & Gas Property | May 1982 |
| 628 | UNIT PATENTED | Converse County, WY | Oil Property | Feb 2024 |
| 629 | UNIT S | Forrest County, MS | Oil & Gas Property | Dec 1991 |
| 630 | UNIT SA | Park County, WY | Oil & Gas Property | Feb 2024 |
| 631 | UNIT SEDGWICK FEE | Weston County, WY | Oil & Gas Property | Jul 2023 |
| 632 | UNIT SEDGWICK PATENT | Weston County, WY | Oil & Gas Property | Sep 2008 |
| 633 | UNIT STATE | Washakie County, WY | Oil & Gas Property | Feb 2024 |
| 634 | UNIT STATE | Park County, WY | Oil & Gas Property | Feb 2024 |
| 635 | UNIT STATE 0 | Johnson County, WY | Oil & Gas Property | Jul 1992 |
| 636 | UNIT STATE 0-932 | Fremont County, WY | Oil & Gas Property | Feb 2024 |
| 637 | UNIT TCT | Natrona County, WY | Oil & Gas Property | Dec 1984 |
| 638 | UNIT W | Converse County, WY | Oil & Gas Property | Feb 2024 |
| 639 | UNIT WAKEMAN | Weston County, WY | Oil & Gas Property | Feb 1991 |
| 640 | UNIT WHITAKER | Laramie County, WY | Oil & Gas Property | Feb 2024 |
| 641 | UNIT WOODS PATENT | Park County, WY | Oil & Gas Property | Feb 2024 |
| 642 | UNITED | Broomfield County, CO | Oil & Gas Property | Feb 2024 |
| 643 | UNITED | Rio Blanco County, CO | Oil Property | Nov 2023 |
| 644 | UNITED | Kern County, CA | Oil & Gas Property | Dec 2023 |
| 645 | UNITED | Ventura County, CA | Oil & Gas Property | Jun 2018 |
| 646 | UNITED | Kern County, CA | Oil & Gas Property | Dec 2023 |
| 647 | UNITED 1 | Moore County, TX | Gas Property | Jan 2024 |
| 648 | UNITED AFFIL | Logan County, WV | Gas Property | Dec 2021 |
| 649 | UNITED BETHEL CHURCH | Knox County, OH | Oil Property | Dec 2023 |
| 650 | UNITED BRETH | Acadia Parish, LA | Oil Property | Dec 2023 |
| 651 | UNITED CALIFORNIA | Santa Barbara County, CA | Oil & Gas Property | Dec 2008 |
| 652 | UNITED FUEL | Wayne County, WV | Oil & Gas Property | Dec 2021 |
| 653 | UNITED FUEL | Lincoln County, WV | Gas Property | Dec 2021 |
| 654 | UNITED FUEL | Lincoln County, WV | Oil & Gas Property | Dec 2021 |
| 655 | UNITED FUEL GAS | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 656 | UNITED FUEL GAS CO | Wayne County, WV | Oil & Gas Property | Jun 2020 |
| 657 | UNITED FUEL GAS CO | Wayne County, WV | Gas Property | Dec 2021 |
| 658 | UNITED FUEL GAS CO | Martin County, KY | Oil & Gas Property | Dec 2022 |
| 659 | UNITED FUEL GAS CO | Kanawha County, WV | Gas Property | Dec 2021 |
| 660 | UNITED FUEL GAS CO | Lincoln County, WV | Gas Property | Dec 2021 |
| 661 | UNITED FUEL GAS CO | Roane County, WV | Gas Property | Dec 2021 |
| 662 | UNITED LAND | Tuscaloosa County, AL | Gas Property | Nov 2023 |
| 663 | UNITED LAND | Tuscaloosa County, AL | Gas Property | Nov 2023 |
| 664 | UNITED METHODIST | Butler County, PA | Oil & Gas Property | Dec 2023 |
| 665 | UNITED METHODIST CHURCH | Hocking County, OH | Oil & Gas Property | Dec 2022 |
| 666 | UNITED POCAHONTAS 1 | McDowell County, WV | Gas Property | Dec 2021 |
| 667 | UNITED PRESBYTERIAN CHURCH | Dawson County, TX | Oil & Gas Property | Aug 2015 |
| 668 | UNITED ROYALTY A | Lea County, NM | Oil & Gas Property | Dec 2023 |
| 669 | UNITED STATES OF AMERICA FORT K | Meade County, KY | Gas Property | Dec 2019 |
| 670 | UNITY CEMETERY ASS | Westmoreland County, PA | Gas Property | Dec 2023 |
| 671 | UNITY LAND MGMT | Westmoreland County, PA | Gas Property | Dec 2023 |
| 672 | UNIV | Crockett County, TX | Oil & Gas Property | Jan 2024 |
| 673 | UNIV | Ward County, TX | Oil & Gas Property | Dec 2023 |
| 674 | UNIV OF AL | Tuscaloosa County, AL | Gas Property | Nov 2023 |
| 675 | UNIV OF TULSA | Marshall County, OK | Oil & Gas Property | Nov 2023 |
| 676 | UNIV. -P | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 677 | UNIV. 11 SEC. 1 | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 678 | UNIV. CONSOLIDATED X | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 679 | UNIV2 HR | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 680 | UNIV3 VINCENT2 | Upton County, TX | Oil & Gas Property | Jan 2024 |
| 681 | UNIV4 DANNETTE33 | Upton County, TX | Oil & Gas Property | Jan 2024 |
| 682 | UNIV5 | Upton County, TX | Oil & Gas Property | Sep 2022 |
| 683 | UNIV6 | Crockett County, TX | Oil & Gas Property | Jan 2024 |
| 684 | UNIVANISTON | Crane County, TX | Oil & Gas Property | Jan 2024 |
| 685 | UNIVBAILEY | Crane County, TX | Oil & Gas Property | Jan 2024 |
| 686 | UNIVCARLA | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 687 | UNIVDANA | Crockett County, TX | Oil & Gas Property | Jan 2024 |
| 688 | UNIVERSAL ATLAS | Montgomery County, KS | Oil Property | Dec 2023 |
| 689 | UNIVERSAL-TRUST | Los Angeles County, CA | Oil & Gas Property | Dec 2023 |
| 690 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2024 |
| 691 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 692 | UNIVERSITY | Schleicher County, TX | Oil & Gas Property | Jan 2024 |
| 693 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Sep 2012 |
| 694 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 695 | UNIVERSITY | Ward County, TX | Oil & Gas Property | Jan 2024 |
| 696 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Jan 2024 |
| 697 | UNIVERSITY | Crane County, TX | Oil & Gas Property | Jan 2024 |
| 698 | UNIVERSITY | Andrews County, TX | Oil & Gas Property | Jan 2024 |
| 699 | UNIVERSITY | Pecos County, TX | Oil & Gas Property | Jan 2024 |
| 700 | UNIVERSITY | Crockett County, TX | Oil & Gas Property | Jan 2024 |