| 8701 | CORSICAN FEDERAL | Mountrail County, ND | Oil & Gas Property | Feb 2025 |
| 8702 | CORSICANA INDUSTRIAL | Navarro County, TX | Oil & Gas Property | Jan 2025 |
| 8703 | CORSICANA-HONAKER | Wichita County, TX | Oil & Gas Property | Jan 2025 |
| 8704 | CORSON | Glasscock County, TX | Oil & Gas Property | Sep 2024 |
| 8705 | CORSON UNIT | Lycoming County, PA | Gas Property | Feb 2025 |
| 8706 | CORTES | Irion County, TX | Oil & Gas Property | Jan 2025 |
| 8707 | CORTEZ | Kern County, CA | Oil & Gas Property | Dec 2024 |
| 8708 | CORTEZ | Victoria County, TX | Oil & Gas Property | Jan 2025 |
| 8709 | CORTEZ | La Salle County, TX | Oil & Gas Property | Jan 2025 |
| 8710 | CORTEZ | Webster Parish, LA | Oil & Gas Property | Jan 2025 |
| 8711 | CORTEZ-WHELESS | Victoria County, TX | Oil & Gas Property | Jan 2025 |
| 8712 | CORTLAND MYERS | Lea County, NM | Oil & Gas Property | Dec 2024 |
| 8713 | CORUM, JOANN | Clay County, KY | Oil & Gas Property | Dec 2023 |
| 8714 | CORUM, OTTO | Hopkins County, KY | Oil Property | Dec 2020 |
| 8715 | CORVETTE | McMullen County, TX | Oil & Gas Property | Jan 2025 |
| 8716 | CORVETTE 4 33 | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 8717 | CORVIN | Pontotoc County, OK | Oil Property | Dec 2017 |
| 8718 | CORVO FEDERAL | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 8719 | CORVUS | Uintah County, UT | Oil & Gas Property | Jan 2025 |
| 8720 | CORVUS 2734-09H | Converse County, WY | Oil & Gas Property | Feb 2025 |
| 8721 | CORWIN | Major County, OK | Oil & Gas Property | Feb 2025 |
| 8722 | CORWIN 1-34H | Kingfisher County, OK | Oil & Gas Property | Jan 2025 |
| 8723 | CORY | Elk County, KS | Oil Property | Dec 2024 |
| 8724 | CORY | McKean County, PA | Oil Property | Dec 2024 |
| 8725 | CORYELL | Harper County, KS | Oil & Gas Property | Dec 2024 |
| 8726 | COSAR | Seminole County, OK | Oil Property | Feb 1998 |
| 8727 | COSAR | Seminole County, OK | Oil Property | Mar 2010 |
| 8728 | COSBY | Grady County, OK | Oil & Gas Property | Jan 2025 |
| 8729 | COSDEN DERDEYN | Garvin County, OK | Oil Property | Nov 2024 |
| 8730 | COSEKA | Washakie County, WY | Oil & Gas Property | Apr 2024 |
| 8731 | COSENS | Tuscola County, MI | Oil Property | Dec 2024 |
| 8732 | COSEY | Caldwell County, TX | Oil & Gas Property | Jan 2025 |
| 8733 | COSGRAY | Greene County, PA | Gas Property | Feb 2025 |
| 8734 | COSGROVE | Coal County, OK | Gas Property | Jan 2025 |
| 8735 | COSGROVE | Seward County, KS | Oil & Gas Property | Dec 2024 |
| 8736 | COSH MILL CREEK A-1 | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 8737 | COSHOCTON COUNTY AIRPORT AUTHORITY | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 8738 | COSMED UNIT ZAV | Zavala County, TX | Oil & Gas Property | Dec 2024 |
| 8739 | COSMO 1 | Duchesne County, UT | Oil & Gas Property | Feb 2025 |
| 8740 | COSMO 8 STATE | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 8741 | COSMO DALTEX UNIT 45-4 | Reeves County, TX | Oil & Gas Property | Jan 2025 |
| 8742 | COSMO K 24S35E3328 FEE | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 8743 | COSMONAUT | Fort Bend County, TX | Oil & Gas Property | Jan 2025 |
| 8744 | COSNER | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 8745 | COSNER | Campbell County, WY | Oil & Gas Property | Feb 2025 |
| 8746 | COSNER | Susquehanna County, PA | Gas Property | Feb 2025 |
| 8747 | COSNER 11S | Campbell County, WY | Gas Property | Aug 2009 |
| 8748 | COSPER | Midland County, TX | Oil & Gas Property | Jan 2025 |
| 8749 | COSPER | Coal County, OK | Gas Property | Jan 2025 |
| 8750 | COSS | Mercer County, PA | Gas Property | Dec 2024 |
| 8751 | COSSATOT | Lea County, NM | Oil & Gas Property | Feb 2025 |
| 8752 | COSSEY | Caddo County, OK | Oil Property | Nov 2024 |
| 8753 | COSSLER. HOMER | Daviess County, KY | Oil Property | Nov 2022 |
| 8754 | COSSLETT | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 8755 | COSSLETT | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 8756 | COSSLETT EAST FEDERAL 1A-22H-H168 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 8757 | COSSLETT HEIRS UU | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 8758 | COSSON | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 8759 | COSSON GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2025 |
| 8760 | COSTA | San Mateo County, CA | Oil & Gas Property | Dec 2014 |
| 8761 | COSTANZA | Howard County, TX | Oil & Gas Property | Jan 2025 |
| 8762 | COSTANZO | Dickens County, TX | Oil & Gas Property | Jan 2025 |
| 8763 | COSTANZO | Summit County, OH | Oil & Gas Property | Dec 1994 |
| 8764 | COSTANZO UNIT | Washington County, PA | Oil & Gas Property | Feb 2025 |
| 8765 | COSTELLO | Palo Pinto County, TX | Oil & Gas Property | Jan 2025 |
| 8766 | COSTELLO | Carter County, OK | Oil Property | Jan 2025 |
| 8767 | COSTELLO 16 | Potter County, PA | Gas Property | Dec 2000 |
| 8768 | COSTELLO 2 | Coal County, OK | Gas Property | Feb 2025 |
| 8769 | COSTEN | Allegan County, MI | Oil Property | Sep 2024 |
| 8770 | COSTIGAN | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 8771 | COSTILLA MABEE | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 8772 | COSTILOW | Latimer County, OK | Gas Property | Jan 2025 |
| 8773 | COSTILOW, DONALD L | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 8774 | COSTILOW, EARNEST | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 8775 | COSTLOW | Dewitt County, TX | Oil & Gas Property | Jan 2025 |
| 8776 | COT EAST | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 8777 | COT WEST | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 8778 | COTCHA | Seminole County, OK | Oil Property | Dec 2024 |
| 8779 | COTHAM | Payne County, OK | Oil & Gas Property | Jan 2025 |
| 8780 | COTHES | Andrews County, TX | Oil & Gas Property | Jan 2025 |
| 8781 | COTHREN UNIT | Wise County, TX | Oil & Gas Property | Jan 2025 |
| 8782 | COTIGA DEV | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8783 | COTIGA DEV. CO | Mingo County, WV | Gas Property | Dec 2021 |
| 8784 | COTIGA DEVEL | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8785 | COTIGA DEVELOPMENT C | Mingo County, WV | Gas Property | Nov 2008 |
| 8786 | COTIGA DEVELOPMENT CO | Mingo County, WV | Gas Property | Dec 2021 |
| 8787 | COTIGA LIMITED PART | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8788 | COTIGA LTD P | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8789 | COTNER | Grady County, OK | Oil & Gas Property | Jan 2025 |
| 8790 | COTNER 35-14 | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 8791 | COTRONE-JEWISH WELFARE UNIT | Burleson County, TX | Oil & Gas Property | Dec 2024 |
| 8792 | COTROPIA GAS UNIT 1 | Robertson County, TX | Oil & Gas Property | Dec 2024 |
| 8793 | COTROPIA-FERRARA UNIT | Robertson County, TX | Oil & Gas Property | Dec 2024 |
| 8794 | COTROPIA-MCCRADY UNIT | Robertson County, TX | Oil & Gas Property | Dec 2024 |
| 8795 | COTROPIA-PERRONE UNIT | Robertson County, TX | Oil & Gas Property | Dec 2024 |
| 8796 | COTSWOLD | Bienville Parish, LA | Gas Property | Dec 2024 |
| 8797 | COTT | Marion County, KS | Gas Property | Nov 2023 |
| 8798 | COTT | Stevens County, KS | Gas Property | Dec 2024 |
| 8799 | COTTEN | Glasscock County, TX | Oil & Gas Property | Mar 2019 |
| 8800 | COTTER 1 | Barton County, KS | Oil Property | Nov 2024 |