Home Business Oil little changed as U.S.-Iran dispute supports, trade war weighs Business Oil little changed as U.S.-Iran dispute supports, trade war weighs By Genpie - May 21, 2019 106 0 Facebook Twitter Google+ Pinterest WhatsApp Oil futures were steady on Tuesday as the prospect of mounting U.S.-Iran tensions disrupting supply was offset by concerns that a lengthy trade war between Washington and Beijing would limit crude demand.