Jeff Boggs of Consol Energy in in front of a rig exploring the Marcellus Shale outside Waynesburg, PA in April. Shale-based resources increase the world’s total potential oil reserves by 11% and natural gas by 47%, according to a US report.
Jeff Boggs of Consol Energy in in front of a rig exploring the Marcellus Shale outside Waynesburg, PA on April 13, 2012
