| 1 | Nadel And Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 2 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2025 |
| 3 | National Energy Group, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 4 | NBL Permian LLC | Houston, TX 77070 | Oil & Gas Operator | Aug 2018 |
| 5 | Neches Exploration, L.L.C. | Flint, TX 75762 | Oil & Gas Operator | Oct 2025 |
| 6 | Neches Oil & Gas Company, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |
| 7 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Jun 2025 |
| 8 | Neumin Production Company | Point Comfort, TX 77978 | Oil & Gas Operator | Oct 2025 |
| 9 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 10 | Newton Corp.,The | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 11 | NFR Energy, LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2017 |
| 12 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 13 | Nolte, Mike E. | Longview, TX 75606 | Oil & Gas Operator | Jun 1995 |
| 14 | Nolte, Mike E., Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2006 |
| 15 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Oct 2025 |
| 16 | North American Drilling Corp | Plano, TX 75093 | Oil & Gas Operator | Oct 2025 |
| 17 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 18 | North Lake Resources LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 2025 |
| 19 | North Star Energy, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Jan 2010 |
| 20 | Now Development Co., Inc. | Tyler, TX 75702 | Oil & Gas Operator | Dec 2017 |
| 21 | Nuevo Energy Company | Houston, TX 77002 | Oil & Gas Operator | Dec 2002 |