| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | American International Energy Corp | Oil & Gas Operator | Oct 2003 | |
| 2 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 3 | Anchor Bay Corporation | Denver, CO 80202 | Oil & Gas Operator | Jun 2007 |
| 4 | Aries Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2010 |
| 5 | Armor Petroleum, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |