| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Watson, Ben | Blue Mound, KS 66010 | Oil Operator | Oct 2008 |
| 2 | WD Oil Company I | Oil Operator | Apr 1986 | |
| 3 | Westport Petrole | Oil Operator | Feb 1985 | |
| 4 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 5 | Wollard-Abbott Crude, A General Partnership | Parker, KS 66072 | Oil Operator | May 2008 |