Oil futures climbed Monday, with the U.S. benchmark above $70 a barrel for the first time since November 2014. Traders awaited a U.S. decision due May 12 on the Iran nuclear deal, with the potential for a reinstatement of sanctions on Tehran feeding worries over tighter global crude supplies. June West Texas Intermediate crude rose $1.01, or about 1.5%, to settle at $70.73 a barrel on the New York Mercantile Exchange.