| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | W & W Prod Compa | Oil Operator | Oct 1995 | |
| 2 | W & W Production Company, General Partnership | Chanute, KS 66720 | Oil & Gas Operator | Dec 2023 |
| 3 | W4 Energy, LLC | Humboldt, KS 66748 | Gas Operator | Nov 2015 |
| 4 | Wells-Battelstei | Oil & Gas Operator | Mar 1993 | |
| 5 | Willis Energy | Neodesha, KS 66757 | Oil & Gas Operator | Dec 2009 |
| 6 | Winder Oil Company | Oil Operator | Sep 2023 | |
| 7 | Wintershall Oil | Oil Operator | Sep 1985 | |
| 8 | Wrestler Ronald | Oil Operator | Dec 1994 |