| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Katy Drilling Corporation | Tulsa, OK 74146-3717 | Oil & Gas Operator | Apr 2020 |
| 2 | Kelly Oil | Tulsa, OK 74105 | Oil Operator | Dec 2000 |
| 3 | Kenneth W. Cory, LTD. | Bellaire, TX 77401 | Oil & Gas Operator | Feb 2024 |
| 4 | Kiska Oil Company | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2019 |
| 5 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Feb 2024 |
| 6 | Koch Oil Company | Oil & Gas Operator | May 2017 | |
| 7 | Kybenco Disposals LLC | Oil Operator | Sep 2022 |