| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 2 | Anadarko Production Co. | Oil Operator | Feb 1989 | |
| 3 | Apex Energy, L.L.C. | Tulsa, OK 74114 | Oil & Gas Operator | Aug 2025 |
| 4 | Arsenal Energy USA Inc. | Oil & Gas Operator | Aug 2016 |