| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | N. W. Corporation | Gas Operator | Jan 1989 | |
| 2 | Nadel & Gussman-Jetta Oper. Co. | Oil & Gas Operator | Mar 2012 | |
| 3 | Navarro Gas Production Company | Gas Operator | Dec 1996 | |
| 4 | Nemours Corporation | Gas Operator | Jan 1986 | |
| 5 | Nerco Oil & Gas, Inc. | Oil & Gas Operator | Dec 1996 | |
| 6 | New Ora Oil, Inc. | Oil Operator | Aug 1984 | |
| 7 | Newhaven Operating Inc | Oil & Gas Operator | Dec 1998 | |
| 8 | NGC Energy Co. | Oil & Gas Operator | May 1989 | |
| 9 | Noe And Woods, Et Al | Gas Operator | Jan 2008 | |
| 10 | Noram Field Services Corp. | Oil Operator | Apr 1999 |