| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Oct 2025 |
| 2 | Aeon Energy Corp | Oil & Gas Operator | Aug 2025 | |
| 3 | Agate Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2015 |
| 4 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 5 | Anschutz Oil Co. | Oil & Gas Operator | Jul 1984 | |
| 6 | Arrowhead Exploration Company | Olney, TX 76374 | Oil Operator | Dec 1995 |