| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Natural Gas Corp Of Ca | Vernal, UT 84078 | Oil & Gas Operator | Jun 1989 |
| 2 | Negaunee, LLC | Pewaukee, WI 53072 | Oil Operator | Jun 2026 |
| 3 | Nicor Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 4 | Northstar Gas Company Of Texas | Houston, TX 77057-2768 | Oil & Gas Operator | Jan 2026 |
| 5 | Northwest Exploration Co | Salt Lake City, UT 84108-0900 | Oil & Gas Operator | Sep 1991 |
| 6 | NP Energy Corporation | Englewood, CO 80111 | Oil & Gas Operator | Jun 1989 |