| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Washington Energy Co LLC | Canonsburg, PA 15317-0400 | Oil & Gas Operator | Dec 2024 |
| 2 | Westinghouse Elec Co LLC | Gas Operator | Dec 2025 | |
| 3 | WGM Gas Co Inc | Oil & Gas Operator | Dec 2025 | |
| 4 | WHC Oper LLC | Gas Operator | Dec 2025 | |
| 5 | Wilkes Energy Inc | Akron, OH 44308 | Oil & Gas Operator | Dec 2022 |
| 6 | William McIntire Coal Oil & Gas | Oil & Gas Operator | May 2022 | |
| 7 | Winfall Energy Inc N V | Apollo, PA 15613-0502 | Oil & Gas Operator | Dec 2025 |
| 8 | Wood Drilling LLC | Gas Operator | Dec 2025 | |
| 9 | Wood William C | Oil & Gas Operator | Dec 2018 |