MarcellusGas-167376400452567040 aspwv1999-11-30T00:00:00-05:00November 30th, 1999|Twitter| .@Chiefoilandgas‘ Five Years of Successful Development in Pa. http://t.co/Z9F5Azgf #Marcellus #ShaleGas Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail