Oil & Gas Companies in Rooks County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | C & R Oil | | Oil Operator | Jun 2025 |
| 2 | C C & S Oil Oper | | Oil Operator | Apr 1983 |
| 3 | Calvin Noah, LLC | Valley Center, KS 67147 | Oil Operator | Jun 2025 |
| 4 | Carmen Schmitt, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Jun 2025 |
| 5 | Castelli Exploration, Inc. | Oklahoma City, OK 73162 | Oil & Gas Operator | Jun 2025 |
| 6 | Castle Resources, Inc. | Russell, KS 67665 | Oil & Gas Operator | Jun 2025 |
| 7 | Cattlemans Oil O | | Oil Operator | Nov 1995 |
| 8 | Central Energy Corporation | Wichita, KS 67202 | Oil & Gas Operator | Nov 1998 |
| 9 | Chesney Marilyn | | Oil Operator | Jul 1987 |
| 10 | Chesney Oil Comp | | Oil Operator | Sep 1989 |
| 11 | Chevron U S A In | | Oil & Gas Operator | Sep 2000 |
| 12 | Christa Oil Comp | | Oil Operator | Nov 1994 |
| 13 | Cinco Exploratio | | Oil & Gas Operator | Jan 1988 |
| 14 | Cincris Energy C | | Oil & Gas Operator | Jun 1991 |
| 15 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Oct 2025 |
| 16 | Class Oil | Hays, KS 67601 | Oil Operator | Jun 1991 |
| 17 | Co-Co Incorporat | | Oil Operator | Oct 1989 |
| 18 | Coastal Oil & Ga | | Oil & Gas Operator | Oct 1996 |
| 19 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Jun 2025 |
| 20 | Collins John B | | Oil Operator | Sep 1994 |
| 21 | Columbia Petrole | | Oil Operator | Sep 1988 |
| 22 | Columbian Servic | | Oil & Gas Operator | Nov 1993 |
| 23 | Condor Energy | | Oil Operator | Aug 1995 |
| 24 | Condor Energy Inc | Great Bend, KS 67530 | Oil & Gas Operator | Oct 2021 |
| 25 | Conoco Incorpora | | Oil & Gas Operator | Apr 1988 |
| 26 | Continental Energy | Garden City, KS 67846-0918 | Oil & Gas Operator | Jul 2017 |
| 27 | Continental Operating Co. | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 28 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Jun 2025 |
| 29 | Corwin, B. V. | Enid, OK 73701 | Oil & Gas Operator | Apr 2017 |
| 30 | Costilla Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 31 | Crawford Oil & W | | Oil Operator | Dec 1985 |
| 32 | Crown Well Service Inc | Capon Bridge, WV 26711 | Oil Operator | Jun 2025 |
Production numbers shown above are only for Rooks County, KS and for the production period listed.