Israel attacked Iran’s capital early Friday in strikes that targeted the country’s nuclear program and killed at least two top military officers.

French President Emmanuel Macron said on Friday that information France had on the Iranian nuclear programme was most concerning, adding that the programme was close to a critical stage.

If Iran’s retaliation against Israel includes disrupting oil flows or attacking regional energy infrastructure, “we could see a significant supply shock with oil prices rising sharply,” Jorge León, a...