| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 4701 | Zinszer Oil Co., Inc. | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 4702 | Zinszer Oil Comp | Oil Operator | Aug 1985 | |
| 4703 | Zlab, Adolph | Yates Center, KS 66783 | Oil Operator | Jul 1997 |
| 4704 | Zoandra Petroleu | Oil & Gas Operator | May 1993 | |
| 4705 | Zorger, Gerald W. | Wichita, KS 67202 | Oil & Gas Operator | Apr 1985 |
| 4706 | Zu, LLC | Hays, KS 67601 | Oil Operator | Nov 2025 |