| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Waldron David A | Wooster, OH 44691 | Oil & Gas Operator | Dec 2003 |
| 2 | Warren C J Oil Co | MT Carmel, IL 62863 | Oil & Gas Operator | Dec 1984 |
| 3 | Watson Wayne W | Cambridge, OH 43725-3024 | Oil & Gas Operator | Dec 2002 |
| 4 | Wilson Petroleum Corp | Westerville, OH 43081 | Oil & Gas Operator | Dec 2000 |
| 5 | Witco Corporation | Newark, OH 43055 | Oil & Gas Operator | Dec 1995 |
| 6 | WNT Operating Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2001 |
| 7 | Woodyard Drilling | Chesterhill, OH 43728 | Oil & Gas Operator | Dec 2016 |