| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | C & B Operating Inc. | St John, KS 67576 | Oil & Gas Operator | Dec 2023 |
| 2 | C & K Operating LLC | Kingman, KS 67068 | Oil & Gas Operator | Dec 2023 |
| 3 | Caerus Kansas LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 4 | Campbell Robert | Oil & Gas Operator | Aug 1990 | |
| 5 | Canaday Oil Corp | Goddard, KS 67052 | Oil & Gas Operator | Dec 2023 |
| 6 | Case Oil & Gas I | Oil & Gas Operator | Apr 1992 | |
| 7 | Castle Resources | Oil Operator | Jul 2002 | |
| 8 | Central Energy C | Oil & Gas Operator | Jun 1994 | |
| 9 | Chance Drilling Company | Commerce City, CO 80022 | Oil Operator | Sep 2009 |
| 10 | Circle K Enterprises | Oil & Gas Operator | Dec 2023 | |
| 11 | Citation Oil & G | Oil & Gas Operator | Dec 1996 | |
| 12 | Clinton Producti | Oil Operator | Dec 1989 | |
| 13 | CMX, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Dec 2023 |
| 14 | Cobra Oil & Gas | Oil & Gas Operator | Jul 1995 | |
| 15 | Columbian Servic | Oil & Gas Operator | Nov 1993 | |
| 16 | Continental Ener | Oil & Gas Operator | Dec 1996 | |
| 17 | Continental Oil | Oil Operator | Jun 1985 | |
| 18 | Crockett Oil And Gas, Inc. | Sharon, KS 67138 | Oil & Gas Operator | Jun 2006 |