| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 201 | Woodman & Iannit | Oil & Gas Operator | Sep 1996 | |
| 202 | Woolsey Operating Company, LLC | Wichita, KS 67226 | Oil & Gas Operator | Dec 2023 |
| 203 | Woolsey Petroleum Corporation | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 204 | Young Petroleum Service, LLC | Wichita, KS 67212 | Oil & Gas Operator | Sep 2023 |
| 205 | Zenith Drilling | Oil & Gas Operator | Aug 1995 | |
| 206 | Zenith Drilling Corporation | Wichita, KS 67206 | Oil & Gas Operator | Dec 2023 |
| 207 | Zu, LLC | Hays, KS 67601 | Oil Operator | Dec 2023 |