Natural Gas Production in Marcellus Shale
Marcellus Shale area  
Natural gas wells
This map shows wells that extract natural gas from the Marcellus Shale, a rock formation that sits a mile or more under the Appalachian Mountains. It includes wells that produced gas during the most recent production reporting period in each state. Zoom in and click on a well for operator information.

Sources: Energy Information Administration, West Virginia Geological and Economic Survey, Pennsylvania Department of Environmental Protection, Ohio Department of Natural Resources and New York State Department of Environmental Conservation. Credit: Greg Masters/Capital News Service