Oil & Gas Companies in Rush County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Cambron, Paul L. | Ness City, KS 67560 | Oil & Gas Operator | Dec 2019 |
| 2 | Carmen Schmitt, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jun 2025 |
| 3 | Castle Resources, Inc. | Russell, KS 67665 | Oil & Gas Operator | Jun 2025 |
| 4 | Castle-Rock Prod | | Oil Operator | Mar 1992 |
| 5 | Catfish Minerals LLC | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 6 | Charter Energy, Inc. | Great Bend, KS 67530 | Oil Operator | Jun 2025 |
| 7 | Chief Drilling C | | Oil & Gas Operator | Feb 1995 |
| 8 | Cholla Production LLC | Littleton, CO 80127 | Oil & Gas Operator | Jun 2025 |
| 9 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Oct 2025 |
| 10 | Clover Oil Company | | Oil Operator | May 2025 |
| 11 | Coastal Oil & Ga | | Oil & Gas Operator | Oct 1996 |
| 12 | Col-Kan Developm | | Oil & Gas Operator | Jan 1995 |
| 13 | Columbian Servic | | Oil & Gas Operator | Nov 1993 |
| 14 | Conch Oil, Inc. | Wichita, KS 67202 | Oil Operator | Jun 2002 |
| 15 | Condor Energy | | Oil Operator | Aug 1995 |
| 16 | Condor Energy Inc | Great Bend, KS 67530 | Oil & Gas Operator | Oct 2021 |
| 17 | Continental Ener | | Oil & Gas Operator | Dec 1996 |
| 18 | Cross Bar Petroleum, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Jun 2016 |
| 19 | CWB Oil Company, LLC | St. Francis, KS 67756 | Oil Operator | Jun 2025 |
Production numbers shown above are only for Rush County, KS and for the production period listed.