Energy prices broadly tumbled and global stocks rose Monday — but only moderately — after the U.S. and Iran said they had reached an agreement to end fighting and reopen the Strait of Hormuz. The price of U.S. crude oil slid more than 5% in early Monday trading to around $80 per barrel, while international Brent crude fell about 4.5% to $83 per barrel. For both benchmarks, these levels were the lowest since the first week of March, just days after the war with Iran was launched. Heating oil, a