| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Adams G C Oil & | Oil & Gas Operator | Nov 1996 | |
| 2 | American Star Energy Services, LLC | Tulsa, OK 74152 | Gas Operator | Jun 2025 |
| 3 | American Warrior Inc | Garden City, KS 67846 | Oil & Gas Operator | Jun 2025 |
| 4 | Amoco Production | Oil & Gas Operator | Jun 2012 | |
| 5 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 6 | Argonaut Energy | Oil & Gas Operator | Aug 1991 | |
| 7 | Arrow Oil & Gas, Inc. | Norman, OK 73070 | Oil Operator | Mar 2010 |
| 8 | Axem Resources I | Oil Operator | Aug 1995 |