| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Adobe Resources Corporation | Midland, TX 79701 | Oil & Gas Operator | Aug 2002 |
| 2 | Alliance Petroleum Corp | Canton, OH 44718-2553 | Oil & Gas Operator | Mar 2026 |
| 3 | Amer Natural Resources LLC | Rural Valley, PA 16249-0306 | Oil & Gas Operator | Dec 2018 |
| 4 | Apollo Resources LLC | Vintondale, PA 15961-0222 | Oil & Gas Operator | Mar 2026 |
| 5 | Appalachian Exploration Corp | McMurray, PA 15317-3452 | Gas Operator | Dec 1995 |