| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 201 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 202 | Zilkha Energy Inc | Houston, TX 77002-5223-5223 | Oil & Gas Operator | Dec 2008 |
| 203 | Zink Petroleum Corp | Uniontown, OH 44685 | Oil & Gas Operator | Dec 1993 |