| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kenworthy Operating Company | Tulsa, OK 74132 | Oil & Gas Operator | May 2009 |
| 2 | Key Gas Corp. | Wichita, KS 67202 | Oil & Gas Operator | Nov 2018 |
| 3 | Kirkman W L Inco | Oil & Gas Operator | Dec 1994 | |
| 4 | KLM Operating | Oil & Gas Operator | Mar 2025 | |
| 5 | Knighton Oil Company, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 6 | Kodiak Petroleum, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jun 2025 |