| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | J & D Investment Co. | Oil & Gas Operator | Feb 2025 | |
| 2 | Jaguar Petroleum | Oil Operator | Jul 1994 | |
| 3 | Jason Oil Company, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 4 | Jay Boy Oil Inco | Oil & Gas Operator | May 1992 | |
| 5 | Jel Resources, LLC | Castle Rock, CO 80109 | Oil & Gas Operator | Jun 2025 |
| 6 | Jones Oil, LLC | St John, KS 67576 | Oil & Gas Operator | Jun 2025 |