Equipment used for the extraction of natural gas is viewed at a hydraulic fracturing site on June 19, 2012 in South Montrose, Pennsylvania. Hydraulic fracturing, also known as fracking, stimulates gas production by injecting wells with high volumes of chemical-laced water in order to free-up pockets of natural gas below. The process is controversial with critics saying it could poison water supplies, while the natural-gas industry says it's been used safely for decades. While New York State has yet to decide whether to allow franking, Governor Andrew Cuomo is considering whether to allow limited franking for communities along the pennsylvania border that want it. Economically struggling Binghamton had passed a drilling ban which prohibits any exploration or extraction of natural gas in the city for the next two years. The Marcellus Shale Gas Feld extends through parts of New York State, Pennsylvania, Ohio and West Virginia and could hold up to 500 trillion cubic feet of natural gas.