| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | California Resources Production Corporation | Oil & Gas Operator | Mar 2026 | |
| 2 | Calnrg Operating LLC | Oil & Gas Operator | Mar 2026 | |
| 3 | Carbon California Operating Company LLC | Oil & Gas Operator | Mar 2026 | |
| 4 | Cbase Corporation | Oil & Gas Operator | Mar 2026 | |
| 5 | Central Lease Inc. | Oil & Gas Operator | Dec 1998 | |
| 6 | Century Production Inc | Oil & Gas Operator | Dec 1986 | |
| 7 | Chemassist L.L.C. | Oil & Gas Operator | Mar 2026 | |
| 8 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Jun 2026 |
| 9 | Clarence R. Barnett Inc. | Oil & Gas Operator | Jul 2025 | |
| 10 | Concordia Resources Inc. | Oil & Gas Operator | Dec 2025 | |
| 11 | Condor Oil Company Inc. | Oil & Gas Operator | Dec 2000 | |
| 12 | Conoco Inc | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 13 | Crazy J Oil LLC | Oil & Gas Operator | Mar 2026 | |
| 14 | Crimson Resource Management Corp. | Oil & Gas Operator | Feb 2026 |