Premarket: Global stocks and oil prices gain as the world waits to see if U.S. will join Israel's war against Iran

World shares are mostly higher and crude oil prices have rebounded as investors wait to see if the U.S. will join Israel's war against Iran. Britain's FTSE 100 was 0.4 per cent higher at 8,829.82 and the CAC-40 in Paris gained 0.6 per cent to 7,595.06. Germany's DAX rose 0.9 per cent at 23,256.98. U.S. futures edged lower after Wall Street was closed on Thursday for the Juneteenth holiday, with contracts for the S&P 500 and the Dow Jones Industrial Average down 0.2 per cent. U.S. benchmark crude oil gained 52 US cents to US$75.66 per barrel, while Brent crude,…