| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Century Exploration New Orleans, LLC | Oil & Gas Operator | Mar 2008 | |
| 2 | Clark, Donald-Roger Young | Oil & Gas Operator | Jan 1988 | |
| 3 | Clark, Noel D. Et Al | Oil & Gas Operator | Mar 1994 | |
| 4 | Clarkco Services, Inc. | Oil & Gas Operator | May 2026 | |
| 5 | Clinch Drilling Company | Oil & Gas Operator | Jan 2000 | |
| 6 | Cody Operating, Inc. | Oil & Gas Operator | Apr 2026 | |
| 7 | Conquest Exploration Co. | Oil & Gas Operator | Mar 1992 |