| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Darrah Oil Company, LLC | Wichita, KS 67201 | Oil & Gas Operator | Jul 2026 |
| 2 | DGH Oil, LLC | Logan, KS 67646 | Oil Operator | Mar 2026 |
| 3 | Diamond Chemical | Oil & Gas Operator | Jan 1995 | |
| 4 | Double Eagle Exploration Inc | Windthorst, TX 76389 | Oil Operator | Mar 2026 |