The Marcellus Shale play in Pennsylvania has greatly contrib aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| The Marcellus Shale play in Pennsylvania has greatly contributed to this boom in natural gas production providing a… https://t.co/kYRUIZV0ww Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail