| 1 | Nadel And Gussman, L.L.C. | Tulsa, OK 74103 | Oil & Gas Operator | May 2024 |
| 2 | Nard Inc | Buffalo, OK 73834-9737 | Oil Operator | Dec 2005 |
| 3 | National Cooperative RFG Assoc | McPherson, KS 67460-1404 | Oil & Gas Operator | Jun 2006 |
| 4 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jan 2024 |
| 5 | Natural Gas Anadarko Company | Perryton, TX 79070 | Oil & Gas Operator | May 2024 |
| 6 | Natural Gas Compression Corp | Cleveland, OK 74020-0065 | Oil & Gas Operator | Nov 2023 |
| 7 | Natural Gas Pipeline Co Of Am LLC | Downers Grove, IL 60515-3708 | Oil & Gas Operator | Mar 2015 |
| 8 | Nelson Exploration Corporation | | Oil & Gas Operator | Jan 2024 |
| 9 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Feb 2024 |
| 10 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | May 2024 |
| 11 | Northwest Disposal Corporation | Laverne, OK 73848-0504 | Oil & Gas Operator | Jul 2014 |