Oil & Gas Companies in Haskell County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | C & R Petroleum Co. | Duncan, OK 73533-1341 | Oil & Gas Operator | Jun 2025 |
| 2 | Casillas Petroleum Corp | Satanta, KS 67870 | Oil & Gas Operator | Jul 2025 |
| 3 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Aug 2025 |
| 4 | Chaparral Energy, L.L.C. | Oklahoma City, OK 73142 | Oil & Gas Operator | Oct 2025 |
| 5 | Chapman Explorat | | Oil Operator | Feb 1988 |
| 6 | Chesapeake Energy | | Oil & Gas Operator | Dec 2009 |
| 7 | Chesapeake Energy Ma | | Gas Operator | Jun 2016 |
| 8 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Oct 2025 |
| 9 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2025 |
| 10 | Cimarex Energy Co. | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 11 | Cisco Operating LLC | Plano, TX 75024 | Oil & Gas Operator | Jun 2025 |
| 12 | City Of Satanta | Satanta, KS 67870 | Gas Operator | Jun 2025 |
| 13 | Coastal Oil & Gas Corporation | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 14 | Continental Ener | | Oil & Gas Operator | Dec 1996 |
| 15 | Continental Energy | Garden City, KS 67846-0918 | Oil & Gas Operator | Jul 2017 |
| 16 | Cross Timbers Operating Co | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2025 |
Production numbers shown above are only for Haskell County, KS and for the production period listed.