| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kanaco Oil Company | Oil Operator | Apr 2025 | |
| 2 | Kansas Crude Resources, LLC | Oil Operator | Feb 2026 | |
| 3 | Kansas Oil, LLC | Oil Operator | Feb 2026 | |
| 4 | Kema Oil Company, Inc. | Lebo, KS 66856 | Oil Operator | Jan 2026 |
| 5 | Kenneth & Regina Laymon, LLC | Neosho Falls, KS 66758 | Oil Operator | Dec 2019 |
| 6 | Kraft Oil Compan | Oil Operator | Nov 1994 | |
| 7 | Kraft Oil Company LLC | Gridley, KS 66852 | Oil Operator | Feb 2026 |