| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | National Cooperative RFG Assoc | McPherson, KS 67460-1404 | Oil & Gas Operator | Jun 2006 |
| 2 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jan 2024 |
| 3 | Nelson Exploration Corporation | Oil & Gas Operator | Jan 2024 | |
| 4 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Feb 2024 |
| 5 | Nielson & Associates Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 6 | Northwest Oil Company | Dallas, TX 75204 | Oil & Gas Operator | Jun 2014 |