Oil surged for a second day as the US and Israel stepped up their war against Iran, with the sprawling conflict’s impact on energy assets in the Persian Gulf deepening. US oil futures surged as much as 9.5% after Iraq cut output at the giant Rumaila oil field and appears poised to shutter about 3 million barrels a day of output if the crisis persists, according to people familiar. Storage at the fields has been tightened because of disruptions in the Strait of Hormuz, a key shipping route, under...