| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | C M S Gas Transmission Co | Oil & Gas Operator | Dec 2020 | |
| 2 | Cobra Oil & Gas Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 3 | Comerica Properties Corp | Oil Operator | May 1985 | |
| 4 | Consumers Energy Co | Oil & Gas Operator | Apr 2010 |