| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Chief Drilling C | Oil & Gas Operator | Feb 1995 | |
| 2 | Chief Drilling, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Sep 1997 |
| 3 | Cholla Production LLC | Littleton, CO 80127 | Oil & Gas Operator | Dec 2023 |
| 4 | Cholla Resources | Oil Operator | Oct 1995 | |
| 5 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 6 | Comanche Resources Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2024 |
| 7 | Continental Ener | Oil & Gas Operator | Dec 1996 | |
| 8 | Culbreath Oil & Gas Co Inc | Tulsa, OK 74135 | Oil & Gas Operator | Feb 2024 |