| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Aethon Energy Operating LLC | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 2 | Amity Oil Co., Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 1977 |
| 3 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 4 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Jul 2025 |
| 5 | Anglo Production Company | Oil & Gas Operator | Nov 1983 | |
| 6 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Oct 2025 |
| 7 | Artzberger-Johnson | Oil & Gas Operator | Mar 1978 |