| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Oct 2025 |
| 2 | Agate Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2015 |
| 3 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 4 | American Oil & Gas, Inc. | Oil & Gas Operator | Nov 2010 | |
| 5 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 6 | Apex Energy, L.L.C. | Tulsa, OK 74114 | Oil & Gas Operator | Jun 2025 |
| 7 | Arsenal Energy USA Inc. | Oil & Gas Operator | Aug 2016 |