Gas Drilling EPA

March 5, 2012 - 3:45 AM
A Monday, Feb. 13, 2012 photo shows a Cabot Oil & Gas wellhead in Dimock, Pa. The U.S. Environmental Protection Agency appears to be ramping up its interest in the Marcellus Shale a rock formation in Pennsylvania and surrounding states that is believed to hold the nation’s largest reservoir of gas with investigations in both the northeastern and southwestern corners of Pennsylvania. The drilling industry accuses EPA of overreach. (AP Photo/Matt Rourke)