Oil & Gas Companies in Ellsworth County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | C K Oil Company | Great Bend, KS 67530 | Oil & Gas Operator | Jun 2025 |
| 2 | Cannan Calvin B | | Oil Operator | Jul 1991 |
| 3 | Carmen Schmitt, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jun 2025 |
| 4 | Caroden Energy LLC | Wake Forest, NC 27587 | Oil Operator | Jun 2025 |
| 5 | Castle Resources, Inc. | Russell, KS 67665 | Oil & Gas Operator | Jun 2025 |
| 6 | Catt Drilling Co. | Holyrood, KS 67450 | Oil Operator | Aug 1989 |
| 7 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Oct 2025 |
| 8 | Chevron U S A In | | Oil & Gas Operator | Sep 2000 |
| 9 | Cincris Energy C | | Oil & Gas Operator | Jun 1991 |
| 10 | CMX, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 11 | Comanche Product | | Oil & Gas Operator | Jan 1992 |
| 12 | Comanche Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2006 |
| 13 | Connell, Mark Allen | Claflin, KS 67525 | Oil Operator | Jun 2025 |
| 14 | Conoco Incorpora | | Oil & Gas Operator | Apr 1988 |
| 15 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Jun 2025 |
Production numbers shown above are only for Ellsworth County, KS and for the production period listed.