| 8901 | COSSEY | Caddo County, OK | Oil Property | Nov 2024 |
| 8902 | COSSLER. HOMER | Daviess County, KY | Oil Property | Oct 2024 |
| 8903 | COSSLETT | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 8904 | COSSLETT | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 8905 | COSSLETT EAST FEDERAL 1A-22H-H168 | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 8906 | COSSLETT HEIRS UU | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 8907 | COSSON | Freestone County, TX | Oil & Gas Property | Dec 2025 |
| 8908 | COSSON GAS UNIT | Freestone County, TX | Oil & Gas Property | Dec 2025 |
| 8909 | COSTA | San Mateo County, CA | Oil & Gas Property | Dec 2014 |
| 8910 | COSTANZA | Howard County, TX | Oil & Gas Property | Dec 2025 |
| 8911 | COSTANZA 2 | McKenzie County, ND | Oil & Gas Property | Jan 2026 |
| 8912 | COSTANZO | Dickens County, TX | Oil & Gas Property | Dec 2025 |
| 8913 | COSTANZO | Summit County, OH | Oil & Gas Property | Dec 1994 |
| 8914 | COSTANZO UNIT | Washington County, PA | Oil & Gas Property | Jan 2026 |
| 8915 | COSTELLO | Palo Pinto County, TX | Oil & Gas Property | Dec 2025 |
| 8916 | COSTELLO | Carter County, OK | Oil Property | Dec 2025 |
| 8917 | COSTELLO 16 | Potter County, PA | Gas Property | Dec 2000 |
| 8918 | COSTELLO 2 | Coal County, OK | Gas Property | Jan 2026 |
| 8919 | COSTEN | Allegan County, MI | Oil Property | Sep 2024 |
| 8920 | COSTIGAN | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 8921 | COSTILLA MABEE | Andrews County, TX | Oil & Gas Property | Dec 2025 |
| 8922 | COSTILOW | Latimer County, OK | Gas Property | Dec 2025 |
| 8923 | COSTILOW, DONALD L | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 8924 | COSTILOW, EARNEST | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 8925 | COSTLOW | Dewitt County, TX | Oil & Gas Property | Dec 2025 |
| 8926 | COT EAST | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 8927 | COT WEST | Weld County, CO | Oil & Gas Property | Dec 2025 |
| 8928 | COTCHA | Seminole County, OK | Oil Property | Dec 2025 |
| 8929 | COTHAM | Payne County, OK | Oil & Gas Property | Dec 2025 |
| 8930 | COTHERN 1 | Logan County, OK | Oil & Gas Property | Dec 2025 |
| 8931 | COTHES | Andrews County, TX | Oil & Gas Property | Dec 2025 |
| 8932 | COTHREN UNIT | Wise County, TX | Oil & Gas Property | Dec 2025 |
| 8933 | COTIGA DEV | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8934 | COTIGA DEV. CO | Mingo County, WV | Gas Property | Dec 2021 |
| 8935 | COTIGA DEVEL | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8936 | COTIGA DEVELOPMENT C | Mingo County, WV | Gas Property | Nov 2008 |
| 8937 | COTIGA DEVELOPMENT CO | Mingo County, WV | Gas Property | Dec 2021 |
| 8938 | COTIGA LIMITED PART | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8939 | COTIGA LTD P | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8940 | COTINGA | Custer County, OK | Oil & Gas Property | Jan 2026 |
| 8941 | COTNER | Grady County, OK | Oil & Gas Property | Dec 2025 |
| 8942 | COTNER 35-14 | Garfield County, CO | Oil & Gas Property | Dec 2025 |
| 8943 | COTRONE-JEWISH WELFARE UNIT | Burleson County, TX | Oil & Gas Property | Nov 2025 |
| 8944 | COTROPIA-FERRARA UNIT | Robertson County, TX | Oil & Gas Property | Nov 2025 |
| 8945 | COTROPIA-MCCRADY UNIT | Robertson County, TX | Oil & Gas Property | Nov 2025 |
| 8946 | COTROPIA-PERRONE UNIT | Robertson County, TX | Oil & Gas Property | Nov 2025 |
| 8947 | COTSWOLD | Bienville Parish, LA | Gas Property | Dec 2024 |
| 8948 | COTT | Marion County, KS | Gas Property | Nov 2023 |
| 8949 | COTT | Stevens County, KS | Gas Property | Sep 2025 |
| 8950 | COTTEN | Glasscock County, TX | Oil & Gas Property | Mar 2019 |
| 8951 | COTTER 1 | Barton County, KS | Oil Property | Sep 2025 |
| 8952 | COTTER 2015 | Major County, OK | Oil & Gas Property | Dec 2025 |
| 8953 | COTTER G | Hansford County, TX | Oil & Gas Property | Mar 2017 |
| 8954 | COTTERILL | Montgomery County, KS | Oil & Gas Property | Sep 2025 |
| 8955 | COTTERMAN | Ashtabula County, OH | Oil & Gas Property | Dec 2017 |
| 8956 | COTTERMAN | Perry County, OH | Oil & Gas Property | Dec 2025 |
| 8957 | COTTERMAN | Perry County, OH | Oil & Gas Property | Dec 1988 |
| 8958 | COTTERMAN | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 8959 | COTTINGHAM | Union County, KY | Oil Property | Dec 2022 |
| 8960 | COTTINGHAM | Webster County, KY | Oil Property | Dec 2023 |
| 8961 | COTTINGHAM | Henderson County, KY | Oil Property | Dec 2014 |
| 8962 | COTTLE | Young County, TX | Oil & Gas Property | Dec 2025 |
| 8963 | COTTLE | Shackelford County, TX | Oil & Gas Property | Dec 2025 |
| 8964 | COTTLE 5892 21-30 | Mountrail County, ND | Oil & Gas Property | Jan 2026 |
| 8965 | COTTLE-REEVES UNIT | Panola County, TX | Oil & Gas Property | Nov 2025 |
| 8966 | COTTMAN | Kay County, OK | Oil & Gas Property | Apr 2019 |
| 8967 | COTTOM | Major County, OK | Oil & Gas Property | Dec 2025 |
| 8968 | COTTOM | Wichita County, TX | Oil & Gas Property | Dec 2025 |
| 8969 | COTTON | Roger Mills County, OK | Oil & Gas Property | Dec 2025 |
| 8970 | COTTON | Weston County, WY | Oil Property | Aug 2022 |
| 8971 | COTTON | Eastland County, TX | Oil & Gas Property | Aug 2015 |
| 8972 | COTTON | Garvin County, OK | Oil & Gas Property | Dec 2025 |
| 8973 | COTTON | Trego County, KS | Oil Property | Jun 2018 |
| 8974 | COTTON | Terry County, TX | Oil & Gas Property | Dec 2025 |
| 8975 | COTTON | Trego County, KS | Oil Property | Jul 2025 |
| 8976 | COTTON | Creek County, OK | Oil & Gas Property | Jan 2026 |
| 8977 | COTTON | Okmulgee County, OK | Oil Property | Jun 2009 |
| 8978 | COTTON | Seward County, KS | Oil & Gas Property | Sep 2025 |
| 8979 | COTTON | Burleson County, TX | Oil & Gas Property | Dec 2025 |
| 8980 | COTTON DRAW | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 8981 | COTTON DRAW | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8982 | COTTON DRAW 1 | Lea County, NM | Oil & Gas Property | Jan 2026 |
| 8983 | COTTON DRAW 25 36 FEDERAL | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8984 | COTTON DRAW 32 STATE FEDERAL COM | Lea County, NM | Oil & Gas Property | Jul 2023 |
| 8985 | COTTON GIN | Gaines County, TX | Oil & Gas Property | Dec 2025 |
| 8986 | COTTON HANLON | Lycoming County, PA | Gas Property | Jan 2026 |
| 8987 | COTTON HANLON 595 | Tioga County, PA | Gas Property | Jan 2026 |
| 8988 | COTTON HILLS 23 26 27 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8989 | COTTON LINDSEY | Gaines County, TX | Oil & Gas Property | Dec 2025 |
| 8990 | COTTON VALLEY | Adams County, MS | Oil & Gas Property | Oct 2011 |
| 8991 | COTTONBERRY 20 FEDERAL | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8992 | COTTONMOUTH | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8993 | COTTONMOUTH 18-09-20 | Kingfisher County, OK | Oil & Gas Property | Dec 2025 |
| 8994 | COTTONTAIL | Garfield County, OK | Oil & Gas Property | Dec 2025 |
| 8995 | COTTONTAIL 16 STATE COM | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 8996 | COTTONTAIL 31 30-17N-11W | Blaine County, OK | Oil & Gas Property | Jan 2026 |
| 8997 | COTTONWOOD | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 8998 | COTTONWOOD | Stephens County, OK | Oil & Gas Property | Dec 2025 |
| 8999 | COTTONWOOD | Eddy County, NM | Oil & Gas Property | Jan 2026 |
| 9000 | COTTONWOOD | Brazos County, TX | Oil & Gas Property | Nov 2025 |