#1,510,148 (-41%) - marcellus-shale.us
Title: Marcellus Shale gas drilling - Photos of Marcellus Shale gas wells in Pennsylvania at marcellus-shale.us
Description: Marcellus-Shale.us has Marcellus Shale photos of gas wells and Marcellus Shale drilling equipment in Pennsylvania, with news, photographs and stories on horizontal gas drilling using hydraulic fracing in Marcellus Shale.