| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | K & E Drilling I | Oil & Gas Operator | Sep 1995 | |
| 2 | K C Resources In | Oil & Gas Operator | Oct 1993 | |
| 3 | Kaiser-Francis O | Oil & Gas Operator | Oct 1995 | |
| 4 | Kaiser-Francis Oil | Oil Operator | Nov 1995 | |
| 5 | Kansas Bourse In | Oil & Gas Operator | Apr 1985 | |
| 6 | Kansas Petroleum, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jul 2007 |
| 7 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Jan 2026 |
| 8 | Keener Oil Compa | Oil & Gas Operator | Jul 1988 | |
| 9 | Keener Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2018 |
| 10 | Kirkman W L Inco | Oil & Gas Operator | Dec 1994 | |
| 11 | Klima Well Service, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Nov 2025 |
| 12 | Koehn, Max R. | Copeland, KS 67837 | Oil & Gas Operator | Oct 2019 |
| 13 | Kruckenberg & SC | Oil & Gas Operator | Sep 1993 |