| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Alco Ind | Valley Forge, PA 19482-0937 | Gas Operator | Dec 2023 |
| 2 | Appalachian Energy Inc | Pittsburgh, PA 15220 | Gas Operator | Dec 2008 |
| 3 | Atlas Resources LLC | Pittsburgh, PA 15275-1033 | Oil & Gas Operator | Jun 2018 |
| 4 | Atwood Energy Inc | Port Washington, OH 43837-9214-9214 | Oil & Gas Operator | Dec 1993 |