FACT: U.S. total natural gas proved reserves increased 10% ( aspwv2014-12-04T00:00:00-05:00December 4th, 2014|Twitter| FACT: U.S. total natural gas proved reserves increased 10% (31 Tcf) in 2013 and reached a new U.S. record of 354 Tcf, according to @EIAgov. Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail