| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | J & J Production LLC | Worland, WY 82401 | Oil Operator | Jun 2025 |
| 2 | Jade Resources Inc | Englewood, CO 80112 | Oil Operator | Jul 1998 |
| 3 | Jay Management Company LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 4 | Jenex Petroleum Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2025 |
| 5 | Jims Water Service Inc | Gillette, WY 82717 | Oil & Gas Operator | Oct 2016 |
| 6 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
| 7 | JN Exploration & Production | Billings, MT 59103-0159 | Oil & Gas Operator | Apr 2001 |
| 8 | Joemar Wyoming Operating LLC | Oil & Gas Operator | Jul 2025 | |
| 9 | Juniper Petroleum Corporation | Oil & Gas Operator | Aug 1983 | |
| 10 | Justice Oil & Gas LLC | Gillette, WY 82716 | Oil & Gas Operator | Aug 2025 |
| 11 | Jva Operating Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2021 |