| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kansas Oil Prope | Oil & Gas Operator | Sep 1991 | |
| 2 | Kansas Resource Exploration & Development, LLC | Overland Park, KS 66202 | Oil Operator | Jun 2025 |
| 3 | Kinderhook Oil & | Oil Operator | Dec 1993 | |
| 4 | Kottwitz Oil Co., A General Partnership | Oil Operator | Jul 2019 |