| 1 | Nacogdoches Oil & Gas Inc | Nacogdoches, TX 75963 | Oil & Gas Operator | Dec 2024 |
| 2 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2017 |
| 3 | Neumin Production Company | Point Comfort, TX 77978 | Oil & Gas Operator | Dec 2024 |
| 4 | New Century Exploration, Inc. | Spring, TX 77379 | Oil & Gas Operator | Dec 2024 |
| 5 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 6 | NFR Energy, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2017 |
| 7 | NGL Crude Logistics LLC | Denver, CO 80209 | Oil Operator | Sep 2024 |
| 8 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
| 9 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Dec 2024 |
| 10 | North American Drilling Corp | Plano, TX 75093 | Oil & Gas Operator | Dec 2024 |
| 11 | North Central Oil Corp. | Houston, TX 77252 | Oil & Gas Operator | Dec 2005 |
| 12 | North Shore Energy, L.L.C. | Austin, TX 78750 | Oil & Gas Operator | Dec 2024 |
| 13 | North Star Energy, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Jan 2010 |
| 14 | Nuevo Energy Company | Houston, TX 77002 | Oil & Gas Operator | Dec 2002 |
| 15 | Null, W.M. Operations, Inc. | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Jun 2002 |