RT @PennEnergy: Updated geologic maps provide greater detail aspwv2015-04-06T00:00:00-04:00April 6th, 2015|Twitter| RT @PennEnergy: Updated geologic maps provide greater detail for #Marcellus formation http://t.co/lUHobmYcMy #oilandgas Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail