PennEnergy Co-Develops Marcellus with Shallower Burket Shale / Latest / By mark The Marcellus and Utica steal the spotlight in Appalachian gas country. But PennEnergy Resources is landing wells in the shallower Burket Shale with compelling results, President Ben Bates said. Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Related