| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Waterco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 2 | Wayne Hammond Enterprises Inc | Bolivar, OH 44612 | Oil & Gas Operator | Dec 2024 |
| 3 | Weinsz Oil & Gas Inc | North Canton, OH 44720 | Oil & Gas Operator | Dec 2003 |
| 4 | White Energy Inc | Berlin Center, OH 44401 | Oil & Gas Operator | Dec 2016 |
| 5 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2023 |
| 6 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 7 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 8 | WRP Energy Inc | Canfield, OH 44406 | Oil & Gas Operator | Dec 2017 |