Penn State researchers have detected a massive natural gas reservoir in the northern Appalachia. The Marcellus black shale covers hundreds of miles in New York, Pennsylvania, Maryland, Ohio and West Virginia, and is estimated to contain a substantial reservoir of natural gas, somewhere in the neighborhood of 516 trillion cubic feet.

The potential to produce more than 50 trillion cubic feet of natural gas annually would be nearly double current U.S. production, and could greatly impact the natural gas market once the gas is extracted, though it's too early to speculate whether natural gas prices would drop due to the supply increase. What is evident is that the find is a significant step in pushing this country toward energy independence with an abundant fuel resource that produces a smaller percentage of greenhouse gases as well.