| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Cain, Nicholas A & Darry R | Oil Operator | Dec 2002 | |
| 2 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Mar 2025 |
| 3 | Core Minerals Operating Co Inc | Oil Operator | Dec 2021 | |
| 4 | Countrymark Energy Resources, LLC | MT Vernon, IN 47620 | Oil & Gas Operator | Dec 2022 |