| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 2 | Amoco Production Company | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 3 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Jan 2026 |
| 4 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Mar 2026 |
| 5 | Atinum Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Jan 2014 |