| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | C. Case Company | Oil & Gas Operator | Feb 2026 | |
| 2 | California Resources Production Corporation | Oil & Gas Operator | Mar 2026 | |
| 3 | Calresources LLC | Oil & Gas Operator | Dec 1996 | |
| 4 | Capitol Oil Corporation | Oil & Gas Operator | Dec 2025 | |
| 5 | Case'S Used Equipment | Oil & Gas Operator | Mar 2026 | |
| 6 | Cen Cal Drilling Inc. | Oil & Gas Operator | Dec 1994 | |
| 7 | Chambers & Mouren | Oil & Gas Operator | Mar 2026 | |
| 8 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Jun 2026 |
| 9 | Clofas Case Oil Co. | Oil & Gas Operator | Dec 2025 | |
| 10 | Coelho & Case Oil Company | Oil & Gas Operator | Dec 1997 | |
| 11 | Commander Oil Company LTD. | Oil & Gas Operator | Dec 2021 | |
| 12 | Compass Global Resources LLC | Oil & Gas Operator | Dec 2015 | |
| 13 | Coyote Oil Company. LTD. | Oil & Gas Operator | Dec 1997 | |
| 14 | Crimson Resource Management Corp. | Oil & Gas Operator | Feb 2026 |