| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | C & J Field Services | Oil & Gas Operator | Jul 2025 | |
| 2 | Cabot Oil & Gas Corporation | Houston, TX 77024 | Oil & Gas Operator | Jun 2025 |
| 3 | Caerus Piceance LLC | Oil & Gas Operator | Feb 2025 | |
| 4 | Carbon Energy Corporation (USA) | Denver, CO 80290 | Oil & Gas Operator | Jul 2004 |
| 5 | CDX Rockies LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2005 |
| 6 | Chandler & Associates LLC | Oil & Gas Operator | Jul 2001 | |
| 7 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Oct 2025 |
| 8 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 9 | CLX Oil & Gas LLC | Oil & Gas Operator | Feb 2005 | |
| 10 | Coachman Energy Operating Company LLC | Englewood, CO 80111 | Oil & Gas Operator | May 2024 |
| 11 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 12 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 13 | Costilla Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 14 | Curton Capital Corp | Oil Operator | Sep 2015 |