| 8901 | COSTELLO | Carter County, OK | Oil Property | Feb 2025 |
| 8902 | COSTELLO 16 | Potter County, PA | Gas Property | Dec 2000 |
| 8903 | COSTELLO 1H-30 | Hughes County, OK | Gas Property | Jun 2025 |
| 8904 | COSTELLO 2 | Coal County, OK | Gas Property | Jun 2025 |
| 8905 | COSTEN | Allegan County, MI | Oil Property | Sep 2024 |
| 8906 | COSTIGAN | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 8907 | COSTILLA MABEE | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 8908 | COSTILOW | Latimer County, OK | Gas Property | Jun 2025 |
| 8909 | COSTILOW, DONALD L | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 8910 | COSTILOW, EARNEST | Doddridge County, WV | Oil & Gas Property | Dec 2021 |
| 8911 | COSTLOW | Dewitt County, TX | Oil & Gas Property | Jul 2025 |
| 8912 | COT EAST | Weld County, CO | Oil & Gas Property | Jun 2025 |
| 8913 | COT WEST | Weld County, CO | Oil & Gas Property | Jun 2025 |
| 8914 | COTCHA | Seminole County, OK | Oil Property | Jun 2025 |
| 8915 | COTHAM | Payne County, OK | Oil & Gas Property | May 2025 |
| 8916 | COTHERN 1 | Logan County, OK | Oil & Gas Property | May 2025 |
| 8917 | COTHES | Andrews County, TX | Oil & Gas Property | Jul 2025 |
| 8918 | COTHREN UNIT | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 8919 | COTIGA DEV | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8920 | COTIGA DEV. CO | Mingo County, WV | Gas Property | Dec 2021 |
| 8921 | COTIGA DEVEL | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8922 | COTIGA DEVELOPMENT C | Mingo County, WV | Gas Property | Nov 2008 |
| 8923 | COTIGA DEVELOPMENT CO | Mingo County, WV | Gas Property | Dec 2021 |
| 8924 | COTIGA LIMITED PART | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8925 | COTIGA LTD P | Mingo County, WV | Oil & Gas Property | Dec 2021 |
| 8926 | COTNER | Grady County, OK | Oil & Gas Property | Jun 2025 |
| 8927 | COTNER 35-14 | Garfield County, CO | Oil & Gas Property | Jul 2025 |
| 8928 | COTRONE-JEWISH WELFARE UNIT | Burleson County, TX | Oil & Gas Property | Jun 2025 |
| 8929 | COTROPIA-FERRARA UNIT | Robertson County, TX | Oil & Gas Property | Jun 2025 |
| 8930 | COTROPIA-MCCRADY UNIT | Robertson County, TX | Oil & Gas Property | Jun 2025 |
| 8931 | COTROPIA-PERRONE UNIT | Robertson County, TX | Oil & Gas Property | Jun 2025 |
| 8932 | COTSWOLD | Bienville Parish, LA | Gas Property | Dec 2024 |
| 8933 | COTT | Marion County, KS | Gas Property | Nov 2023 |
| 8934 | COTT | Stevens County, KS | Gas Property | Jun 2025 |
| 8935 | COTTEN | Glasscock County, TX | Oil & Gas Property | Mar 2019 |
| 8936 | COTTER 1 | Barton County, KS | Oil Property | May 2025 |
| 8937 | COTTER 2015 | Major County, OK | Oil & Gas Property | Jul 2025 |
| 8938 | COTTER G | Hansford County, TX | Oil & Gas Property | Mar 2017 |
| 8939 | COTTERILL | Montgomery County, KS | Oil & Gas Property | Jun 2025 |
| 8940 | COTTERMAN | Ashtabula County, OH | Oil & Gas Property | Dec 2017 |
| 8941 | COTTERMAN | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 8942 | COTTERMAN | Perry County, OH | Oil & Gas Property | Dec 1988 |
| 8943 | COTTERMAN | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 8944 | COTTINGHAM | Union County, KY | Oil Property | Dec 2022 |
| 8945 | COTTINGHAM | Webster County, KY | Oil Property | Dec 2023 |
| 8946 | COTTINGHAM | Henderson County, KY | Oil Property | Dec 2014 |
| 8947 | COTTLE | Shackelford County, TX | Oil & Gas Property | Jul 2025 |
| 8948 | COTTLE 5892 21-30 | Mountrail County, ND | Oil & Gas Property | Aug 2025 |
| 8949 | COTTLE-REEVES UNIT | Panola County, TX | Oil & Gas Property | Jul 2025 |
| 8950 | COTTMAN | Kay County, OK | Oil & Gas Property | Apr 2019 |
| 8951 | COTTOM | Major County, OK | Oil & Gas Property | Jun 2025 |
| 8952 | COTTOM | Wichita County, TX | Oil & Gas Property | May 2025 |
| 8953 | COTTON | Roger Mills County, OK | Oil & Gas Property | Jun 2025 |
| 8954 | COTTON | Weston County, WY | Oil Property | Aug 2022 |
| 8955 | COTTON | Eastland County, TX | Oil & Gas Property | Aug 2015 |
| 8956 | COTTON | Garvin County, OK | Oil & Gas Property | Jul 2025 |
| 8957 | COTTON | Trego County, KS | Oil Property | Jun 2018 |
| 8958 | COTTON | Terry County, TX | Oil & Gas Property | Jul 2025 |
| 8959 | COTTON | Trego County, KS | Oil Property | May 2025 |
| 8960 | COTTON | Creek County, OK | Oil & Gas Property | Jun 2025 |
| 8961 | COTTON | Okmulgee County, OK | Oil Property | Jun 2009 |
| 8962 | COTTON | Seward County, KS | Oil & Gas Property | Jun 2025 |
| 8963 | COTTON | Burleson County, TX | Oil & Gas Property | Jul 2025 |
| 8964 | COTTON DRAW | Lea County, NM | Oil & Gas Property | Aug 2025 |
| 8965 | COTTON DRAW | Eddy County, NM | Oil & Gas Property | Jul 2025 |
| 8966 | COTTON DRAW 1 | Lea County, NM | Oil & Gas Property | Aug 2025 |
| 8967 | COTTON DRAW 25 36 FEDERAL | Eddy County, NM | Oil & Gas Property | Aug 2025 |
| 8968 | COTTON DRAW 32 STATE FEDERAL COM | Lea County, NM | Oil & Gas Property | Jul 2023 |
| 8969 | COTTON GIN | Gaines County, TX | Oil & Gas Property | Jul 2025 |
| 8970 | COTTON HANLON | Lycoming County, PA | Gas Property | Jul 2025 |
| 8971 | COTTON HANLON 595 | Tioga County, PA | Gas Property | Jul 2025 |
| 8972 | COTTON LINDSEY | Gaines County, TX | Oil & Gas Property | Jul 2025 |
| 8973 | COTTON VALLEY | Adams County, MS | Oil & Gas Property | Oct 2011 |
| 8974 | COTTONBERRY 20 FEDERAL | Eddy County, NM | Oil & Gas Property | Jul 2025 |
| 8975 | COTTONMOUTH | Eddy County, NM | Oil & Gas Property | Aug 2025 |
| 8976 | COTTONTAIL | Garfield County, OK | Oil & Gas Property | Jul 2025 |
| 8977 | COTTONTAIL 16 STATE COM | Eddy County, NM | Oil & Gas Property | Aug 2025 |
| 8978 | COTTONTAIL 31 30-17N-11W | Blaine County, OK | Oil & Gas Property | Jun 2025 |
| 8979 | COTTONWOOD | Weld County, CO | Oil & Gas Property | Jan 2021 |
| 8980 | COTTONWOOD | Stephens County, OK | Oil & Gas Property | Jul 2025 |
| 8981 | COTTONWOOD | Eddy County, NM | Oil & Gas Property | Jul 2025 |
| 8982 | COTTONWOOD | Campbell County, WY | Oil & Gas Property | Aug 2025 |
| 8983 | COTTONWOOD | Culberson County, TX | Oil & Gas Property | Jul 2025 |
| 8984 | COTTONWOOD | Uintah County, UT | Oil & Gas Property | Dec 2005 |
| 8985 | COTTONWOOD | Karnes County, TX | Oil & Gas Property | Jul 2025 |
| 8986 | COTTONWOOD | Eddy County, NM | Oil Property | Apr 1994 |
| 8987 | COTTONWOOD | Sublette County, WY | Oil & Gas Property | Jul 2025 |
| 8988 | COTTONWOOD | Mountrail County, ND | Oil & Gas Property | Aug 2025 |
| 8989 | COTTONWOOD | Uintah County, UT | Oil & Gas Property | Feb 2013 |
| 8990 | COTTONWOOD | Washakie County, WY | Oil & Gas Property | Aug 2025 |
| 8991 | COTTONWOOD | Howard County, TX | Oil & Gas Property | Jul 2025 |
| 8992 | COTTONWOOD | Weld County, CO | Oil & Gas Property | Mar 2025 |
| 8993 | COTTONWOOD | Campbell County, WY | Oil & Gas Property | Aug 2025 |
| 8994 | COTTONWOOD 10-25-12 1H | Alfalfa County, OK | Oil & Gas Property | Jun 2025 |
| 8995 | COTTONWOOD 29 32 FEDERAL COM | Eddy County, NM | Oil & Gas Property | Jul 2025 |
| 8996 | COTTONWOOD 32-10-8 | Grady County, OK | Gas Property | Jun 2025 |
| 8997 | COTTONWOOD 34/10 AF | Ellis County, OK | Oil & Gas Property | Jun 2025 |
| 8998 | COTTONWOOD 55-1-14 | Loving County, TX | Oil & Gas Property | Jul 2025 |
| 8999 | COTTONWOOD CREEK | Carter County, OK | Oil Property | Jun 2025 |
| 9000 | COTTONWOOD CREEK 4-65 2 | Arapahoe County, CO | Oil & Gas Property | Jul 2025 |