| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Natural Resource MGMT. Corp. | Oil & Gas Operator | Jun 1989 | |
| 2 | Navitas Resources, LLC | Oil & Gas Operator | May 2016 | |
| 3 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | May 2024 |
| 4 | Neuhoff Oil & Gas Corp. | Oil & Gas Operator | Dec 1986 | |
| 5 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 6 | Nexen Petroleum U.S.A. Inc. | Oil & Gas Operator | Jul 2012 | |
| 7 | Nicco Operating Co. | Oil & Gas Operator | May 1990 | |
| 8 | Nicklos Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Nov 1986 |
| 9 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | May 2024 |
| 10 | North Central Oil Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |