| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 2 | Cedar Ridge LLC | Oil & Gas Operator | Oct 2006 | |
| 3 | Celsius Energy Company | Denver, CO 80202-1558 | Oil & Gas Operator | Mar 2000 |
| 4 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Aug 2025 |
| 5 | Chandler & Associates LLC | Oil & Gas Operator | Jul 2001 | |
| 6 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 7 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Oct 2025 |
| 8 | CLX Oil & Gas LLC | Oil & Gas Operator | Feb 2005 | |
| 9 | Combined Resources Corporation | Edmond, OK 73083 | Oil & Gas Operator | Oct 2025 |
| 10 | Cypress Production, Inc. | Azle, TX 76020 | Oil & Gas Operator | Oct 2025 |