| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Campground Corporation | Oil Operator | Nov 2023 | |
| 2 | Caruthers Producing Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2019 |
| 3 | Castor Production, L.L.C. | Oil Operator | Jun 2024 | |
| 4 | Cavenham Energy Resources Inc. | Oil & Gas Operator | Apr 1991 | |
| 5 | Cavenham Forest Ind., Inc. | Oil & Gas Operator | Nov 1987 | |
| 6 | Cenla Oil Company, LLC | Oil Operator | May 2024 | |
| 7 | Cerro Oil Co., Inc. | Oil Operator | Dec 1987 | |
| 8 | Cross Development Co. | Oil Operator | Dec 1989 | |
| 9 | Crosstex Lig, LLC | Oil Operator | Mar 2014 | |
| 10 | Crown Zellerbach | Oil & Gas Operator | May 1986 |