| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Darrah Oil Company, LLC | Wichita, KS 67201 | Oil & Gas Operator | Dec 2025 |
| 2 | Davis Petroleum | Oil & Gas Operator | Dec 1996 | |
| 3 | Daystar Petroleum Inc | Eureka, KS 67045 | Oil & Gas Operator | Sep 2025 |
| 4 | Discovery Natural Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |