Shale Gas Costing 2/3 Less Than OPEC Oil Converges With U.S.

Pat Carullo, co-founder of Damascus Citizens for Sustainability, right, and Barbara Arrindell, director of the group, stand for a portrait on the banks of the Delaware River in Narrowsburg, New York, U.S., on Wednesday, April 7, 2010. Companies are spending billions to dislodge natural gas from a band of shale-sedimentary rock called the Marcellus shale that underlies Pennsylvania, West Virginia and New York. The band of rock, so designated because it pokes through near a city of that name in northern New York, may contain 262 trillion cubic feet of recoverable gas, the U.S. Department of Energy estimates. Photographer: Daniel Acker/Bloomberg via Getty Images