| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | N Central Casing Pullers, Inc. | Oil & Gas Operator | May 1994 | |
| 2 | National Exploration Company | Oil & Gas Operator | Mar 1982 | |
| 3 | Neosho Operating La, LLC | Oil Operator | Oct 2016 | |
| 4 | Neumin Production Company | Point Comfort, TX 77978 | Oil & Gas Operator | Dec 2025 |
| 5 | Newmont Oil Co. & Colorado | Oil & Gas Operator | Mar 1978 | |
| 6 | Nicklos Oil & Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Nov 1986 |