The Appalachian region continued to be the largest natural g aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| The Appalachian region continued to be the largest natural gas-producing region in the United States. https://t.co/NPvCXWFLAM Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail