| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Acierto Resources Company, LLC | Houston, TX 77070 | Oil & Gas Operator | Oct 2025 |
| 2 | Adco Producing Company | Oil & Gas Operator | Mar 1989 | |
| 3 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 4 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 5 | Anadarko E&P Company LP | Houston, TX 77251 | Oil & Gas Operator | Aug 2014 |
| 6 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 7 | Andover Oil Company | Oil Operator | Sep 1982 | |
| 8 | Arco O & G Co-Div Atl Rich Co | Oil & Gas Operator | Feb 1994 | |
| 9 | Arkla Exploration Co. | Shreveport, LA 71151 | Oil & Gas Operator | Jan 1993 |
| 10 | Axis Onshore, LLC | Oil & Gas Operator | Apr 2008 | |
| 11 | Axis Onshore, LP | Oil & Gas Operator | Dec 2010 |