RT @AlleghenyInsti1: Colin McNickle: A shale gas severance t aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| RT @AlleghenyInsti1: Colin McNickle: A shale gas severance tax? Think again (again) https://t.co/zr6mjGzhNV via @TribLIVE Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail