| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 401 | Wortman Farms, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2017 |
| 402 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Dec 2025 |
| 403 | Younger Energy C | Oil & Gas Operator | Dec 1996 | |
| 404 | Younger Energy Company | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 405 | Zenith Drilling | Oil & Gas Operator | Aug 1995 |