| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ace Drilling Services, Inc. | Oil & Gas Operator | Sep 1987 | |
| 2 | American Petrofina Co Of Texas | Oil & Gas Operator | Jun 1985 | |
| 3 | Anr Pipeline Company | Houston, TX 77002 | Oil & Gas Operator | Jul 2024 |
| 4 | Antares Ventures, L.L.C. | Oil Operator | Oct 2016 | |
| 5 | Arkla Petroleum LLC | Oil & Gas Operator | May 2006 | |
| 6 | Axiom Tep, LLC | Oil & Gas Operator | May 2015 |