| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 2 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 3 | Natural Gas Pipeline Co Of Am LLC | Downers Grove, IL 60515-3708 | Oil & Gas Operator | Mar 2015 |
| 4 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Aug 2025 |
| 5 | Neok Production Company LLC | Nowata, OK 74048 | Oil & Gas Operator | Nov 2025 |
| 6 | Nicor Supply Company | Golden, CO 80401 | Oil & Gas Operator | Jun 1993 |
| 7 | North Central Casing Puller Inc | Graham, TX 76450 | Oil & Gas Operator | Jan 1999 |
| 8 | Nova Energy Corporation | Denver, CO 80201 | Oil & Gas Operator | Jun 2003 |