| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kaiser Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 1990 |
| 2 | Kelpetro Operating Inc. | Oil & Gas Operator | Dec 2021 | |
| 3 | Kenneth Sperry | Oil & Gas Operator | Dec 1992 | |
| 4 | KLD Energy | Oil & Gas Operator | Dec 2015 | |
| 5 | KMP Operating Inc. | Oil Operator | Dec 2025 |