| 1 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2025 |
| 2 | National Energy Group, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 3 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 4 | Natural Gas Pipeline Co Of Am LLC | Downers Grove, IL 60515-3708 | Oil & Gas Operator | Mar 2015 |
| 5 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Jun 2025 |
| 6 | Newpark Drilling Fluids LLC | Clinton, OK 73601 | Oil Operator | Dec 2013 |
| 7 | Nexstreem Corporation | | Oil & Gas Operator | Dec 2020 |
| 8 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 9 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Oct 2025 |
| 10 | Nogp Operating Company Inc | Tomball, TX 77377 | Oil & Gas Operator | Jun 2025 |
| 11 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Oct 2025 |
| 12 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 13 | Northwest Exploration Co | Salt Lake City, UT 84108-0900 | Oil & Gas Operator | Sep 1991 |
| 14 | Nova Energy Corporation | Denver, CO 80201 | Oil & Gas Operator | Jun 2003 |