The Marcellus Shale has seen a dramatic increase in natural gas production due to hydraulic fracturing (fracking), particularly in Pennsylvania.

The Marcellus Shale, one of the largest natural gas reserves in the U.S., has experienced significant production growth, largely due to hydraulic fracturing (fracking) technology. Located primarily in Pennsylvania, West Virginia, and Ohio, this shale formation has become a key player in U.S. energy production. Fracking has unlocked vast quantities of natural gas, making the region a major contributor to the country's energy supply. The rise of fracking in the Marcellus Shale has also led to economic benefits, including job creation and energy independence, although concerns about environmental impacts, like water contamination, persist.