Global shares are mostly lower as investors focus on the Iran war's impact on energy supplies

Global shares are mostly lower and oil prices have surged as investors eye threats to energy supplies from the Iran war. Resource-poor countries in Asia like Japan is likely to be hit without access to the Strait of Hormuz because of the war. U.S. futures fell more than 1%. European benchmarks gave up more than 2% and South Korea's Kospi plunged 7.2%. Energy and defense related shares fell back in Japan and China. On Monday, the S&P 500 fell as much as 1.2% but finished with a gain of less than 0.1%. The Dow Jones Industrial Average dipped 0.1% and the Nasdaq composite rose 0.4%. Both also recovered from steep early losses.