| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Har Ken Oil Company | Oil & Gas Operator | Dec 2021 | |
| 2 | Har-Ken Agent Ok, LTD | Owensboro, KY 42302 | Oil & Gas Operator | Dec 2023 |
| 3 | Hoffman George A | Oil & Gas Operator | Dec 2022 | |
| 4 | Hydrocarbon Inv, Inc | Oil Operator | Dec 2018 |