| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Cameron & Kincaid | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1986 |
| 2 | Cameron Brothers | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1995 |
| 3 | Cameron Production Co Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2022 |
| 4 | Carlton Oil Corp | Newport, OH 45768 | Oil & Gas Operator | Dec 2013 |
| 5 | Chamberlain Dba/Old South Oil | Marietta, OH 45750 | Oil & Gas Operator | Dec 2008 |
| 6 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2024 |
| 7 | Columbia Gas Transmission, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2021 |
| 8 | Crissinger Robert A Inc | Strongsville, OH 44136 | Oil & Gas Operator | Dec 2003 |