| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Natural Gas Corp. Of Calif. | Oil & Gas Operator | Dec 1987 | |
| 2 | Navitas Oil & Gas LLC | Gas Operator | Dec 2012 | |
| 3 | North Valley Oil & Gas Co. | Oil & Gas Operator | Dec 1996 | |
| 4 | Northern Energy Devel. Co. | Gas Operator | Dec 1995 | |
| 5 | Northern Michigan Expl Co | Oil & Gas Operator | Jul 1990 |