| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Sep 2026 |
| 2 | Karbuhn Oil Company | Tomball, TX 77375 | Oil & Gas Operator | Sep 2026 |
| 3 | Kem Energy, Inc. | Katy, TX 77450 | Oil & Gas Operator | Sep 2026 |
| 4 | Kraker & Martin Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |