| 10701 | CTU-FEE | Weston County, WY | Oil & Gas Property | Aug 1997 |
| 10702 | CU DOWNS FED | Converse County, WY | Oil & Gas Property | Oct 2025 |
| 10703 | CU DOWNS FED 28 | Converse County, WY | Oil & Gas Property | Oct 2025 |
| 10704 | CU DOWNS FED 3 | Converse County, WY | Oil & Gas Property | Oct 2025 |
| 10705 | CU REPP FED 09-213769-1XTPH | Converse County, WY | Oil & Gas Property | Oct 2025 |
| 10706 | CUADRITO AZO FEDERAL | Eddy County, NM | Oil & Gas Property | Sep 2025 |
| 10707 | CUATRO 21 | Martin County, TX | Oil & Gas Property | Aug 2025 |
| 10708 | CUATRO HIJOS FEE | Lea County, NM | Oil & Gas Property | Sep 2025 |
| 10709 | CUB 56-2-33 1H | Reeves County, TX | Oil & Gas Property | Sep 2025 |
| 10710 | CUB CREEK COAL CO. A | Wyoming County, WV | Gas Property | Dec 2021 |
| 10711 | CUBBISON | Guernsey County, OH | Oil Property | Dec 2024 |
| 10712 | CUBBON | Venango County, PA | Oil Property | Dec 1997 |
| 10713 | CUBBON | Venango County, PA | Gas Property | Dec 2024 |
| 10714 | CUBBON | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 10715 | CUBBON LUMBER CO | Warren County, PA | Gas Property | Dec 2024 |
| 10716 | CUBINE | Gray County, TX | Gas Property | Sep 2025 |
| 10717 | CUBINE | Clay County, TX | Oil & Gas Property | Sep 2025 |
| 10718 | CUCCIA COM | San Juan County, NM | Oil & Gas Property | Sep 2025 |
| 10719 | CUCCIA STATE COM | San Juan County, NM | Gas Property | Sep 2025 |
| 10720 | CUCCIA-U.S.L | Kern County, CA | Oil & Gas Property | Jul 2025 |
| 10721 | CUCH 10-17-2-1E | Uintah County, UT | Oil & Gas Property | Sep 2025 |
| 10722 | CUDA 1 | Williams County, ND | Oil & Gas Property | Oct 2025 |
| 10723 | CUDAHY | Kent County, MI | Oil Property | Sep 2025 |
| 10724 | CUDD | Ochiltree County, TX | Oil & Gas Property | Sep 2025 |
| 10725 | CUDE | Chautauqua County, KS | Oil & Gas Property | Jul 2014 |
| 10726 | CUDE A | Wise County, TX | Oil & Gas Property | Sep 2025 |
| 10727 | CUDE W.T | Caldwell County, TX | Oil & Gas Property | Sep 2025 |
| 10728 | CUDJO | Seminole County, OK | Oil Property | Mar 2025 |
| 10729 | CUDJO | Seminole County, OK | Oil Property | Aug 2025 |
| 10730 | CUDNEY | Edwards County, KS | Oil & Gas Property | Jun 2025 |
| 10731 | CUELLAR | Zapata County, TX | Oil & Gas Property | Sep 2025 |
| 10732 | CUELLAR | Zapata County, TX | Oil & Gas Property | Sep 2025 |
| 10733 | CUELLAR | Zapata County, TX | Oil & Gas Property | Sep 2025 |
| 10734 | CUELLAR | Atascosa County, TX | Oil & Gas Property | Sep 2025 |
| 10735 | CUELLAR | Zapata County, TX | Oil & Gas Property | Jul 2025 |
| 10736 | CUELLAR FERNA | Zapata County, TX | Oil & Gas Property | Sep 2025 |
| 10737 | CUELLAR MA | Zapata County, TX | Oil & Gas Property | Sep 2025 |
| 10738 | CUELLAR-GRAVES GAS UNIT | Zapata County, TX | Oil & Gas Property | Sep 2025 |
| 10739 | CUERNO | Lea County, NM | Oil & Gas Property | Sep 2025 |
| 10740 | CUERVO FEDERAL | Lea County, NM | Oil & Gas Property | Sep 2025 |
| 10741 | CUFFMAN | Denton County, TX | Oil & Gas Property | Sep 2025 |
| 10742 | CUGNINI A | La Plata County, CO | Gas Property | Sep 2025 |
| 10743 | CUL-RAY | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 10744 | CULBERSON | Brown County, TX | Oil & Gas Property | Aug 2025 |
| 10745 | CULBERSON | Culberson County, TX | Oil & Gas Property | May 2025 |
| 10746 | CULBERSON-HUGHES UNIT | Karnes County, TX | Oil & Gas Property | Sep 2025 |
| 10747 | CULBERSON-PATTESON UNIT | Karnes County, TX | Oil & Gas Property | Sep 2025 |
| 10748 | CULBERT | Ventura County, CA | Oil & Gas Property | Sep 2025 |
| 10749 | CULBERTSON | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 10750 | CULBERTSON | Carson County, TX | Gas Property | Sep 2025 |
| 10751 | CULBERTSON | Hitchcock County, NE | Oil Property | Dec 2024 |
| 10752 | CULBERTSON | Terrell County, TX | Oil & Gas Property | Sep 2025 |
| 10753 | CULBERTSON | Bienville Parish, LA | Oil & Gas Property | Dec 2024 |
| 10754 | CULBERTSON | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 10755 | CULBERTSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 10756 | CULBERTSON | Jones County, TX | Oil & Gas Property | Sep 2023 |
| 10757 | CULBREATH | Weld County, CO | Oil & Gas Property | Mar 2017 |
| 10758 | CULBREATH, BOB | Warren County, KY | Oil & Gas Property | Dec 2023 |
| 10759 | CULEBRA 35 | Martin County, TX | Oil & Gas Property | Sep 2025 |
| 10760 | CULEBRA BLV FEDERAL COM | Eddy County, NM | Oil & Gas Property | Oct 2025 |
| 10761 | CULHANE | La Plata County, CO | Gas Property | Sep 2025 |
| 10762 | CULLAR UNIT | Grayson County, TX | Oil & Gas Property | Sep 2025 |
| 10763 | CULLEN | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 10764 | CULLEN | Andrews County, TX | Oil & Gas Property | Sep 2025 |
| 10765 | CULLEN | Harrison County, TX | Oil & Gas Property | Sep 2025 |
| 10766 | CULLEN | Alfalfa County, OK | Oil & Gas Property | Sep 2025 |
| 10767 | CULLEN | Okmulgee County, OK | Gas Property | Nov 2014 |
| 10768 | CULLEN | Colorado County, TX | Oil & Gas Property | Sep 2025 |
| 10769 | CULLEN | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 10770 | CULLEN L | Washington County, OH | Gas Property | Dec 2024 |
| 10771 | CULLEN UNIT A | Live Oak County, TX | Oil & Gas Property | Sep 2025 |
| 10772 | CULLEN-H | Colorado County, TX | Oil & Gas Property | Sep 2025 |
| 10773 | CULLER | Gray County, TX | Oil & Gas Property | Sep 2025 |
| 10774 | CULLER I | Ashland County, OH | Oil Property | Dec 2024 |
| 10775 | CULLERS | Young County, TX | Oil & Gas Property | Feb 2005 |
| 10776 | CULLERS J. EDGAR GAS UNIT | Rusk County, TX | Oil & Gas Property | Sep 2025 |
| 10777 | CULLEY | Seminole County, OK | Oil Property | Nov 2019 |
| 10778 | CULLEY | Graham County, KS | Oil Property | Jun 2025 |
| 10779 | CULLI | Bee County, TX | Oil & Gas Property | Mar 2019 |
| 10780 | CULLINAN FEE | Caddo Parish, LA | Oil & Gas Property | Jan 2025 |
| 10781 | CULLINS FEDERAL | Rio Arriba County, NM | Oil & Gas Property | Sep 2025 |
| 10782 | CULLISON | Johnson County, TX | Gas Property | Sep 2024 |
| 10783 | CULLISON | Stevens County, KS | Oil & Gas Property | Jun 2025 |
| 10784 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2024 |
| 10785 | CULLISON | Licking County, OH | Oil & Gas Property | Dec 2010 |
| 10786 | CULLISON | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 10787 | CULLISON 2 | Stevens County, KS | Oil Property | Dec 2019 |
| 10788 | CULLUM | Wichita County, TX | Oil Property | Aug 2025 |
| 10789 | CULLUM | Gray County, TX | Oil & Gas Property | Sep 2025 |
| 10790 | CULLUM | Wichita County, TX | Oil & Gas Property | Mar 2010 |
| 10791 | CULLUM | Wheeler County, TX | Oil & Gas Property | Sep 2025 |
| 10792 | CULLUM | Freestone County, TX | Oil & Gas Property | Sep 2025 |
| 10793 | CULLY | Seminole County, OK | Oil & Gas Property | Aug 2025 |
| 10794 | CULLY | Ellis County, OK | Oil & Gas Property | Aug 2025 |
| 10795 | CULLY | Sumner County, KS | Oil Property | May 2025 |
| 10796 | CULP | Noble County, OK | Oil & Gas Property | Oct 2016 |
| 10797 | CULP | Caddo County, OK | Oil & Gas Property | Aug 2025 |
| 10798 | CULP | Chautauqua County, KS | Oil & Gas Property | Nov 2024 |
| 10799 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Jan 2014 |
| 10800 | CULP DRAW | Johnson County, WY | Oil & Gas Property | Oct 2025 |