RENEE MONTAGNE, HOST:
Fracking has unleashed a huge amount of natural gas in Pennsylvania's Marcellus Shale, but like every industry it responds to supply and demand. Overproduction led to a glut of gas, which caused companies to shift operations to other regions of the shale, in search of more lucrative natural gas liquids. Marie Cusick of member station WITF has more on the ebb and flow of the industry in Pennsylvania.
MARIE CUSICK, BYLINE: There's a bustling Friday lunch crowd at the Bullfrog Brewery in downtown Williamsport.