NEW YORK (AP) — Oil prices rose in early trading Sunday as a standoff between Iran and the U.S. prevented tankers from using the Strait of Hormuz , the Persian Gulf waterway that is crucial to global energy supplies. The price of U.S. crude oil increased 6.4% to $87.88 per barrel after trading resumed on the Chicago Mercantile Exchange. The price of Brent crude, the international standard, climbed 6.5% to $96.25 per barrel. The market reaction followed more than two days of growing hopes and