| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ace Drilling Services, Inc. | Oil & Gas Operator | Sep 1987 | |
| 2 | Addie, James & John Thornton | Oil & Gas Operator | Dec 2024 | |
| 3 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Jul 2025 |
| 4 | Apollo Petroleum Corporation | Oil & Gas Operator | Dec 2012 | |
| 5 | Arkla Energy Resources | Shreveport, LA 71151 | Oil & Gas Operator | Mar 2015 |