Energy markets on edge as Iran considers retaliation for U.S. strikes. Here's what you need to know

Open this photo in gallery: Up to 20 million barrels of oil and petroleum products a day pass through the Strait of Hormuz.GIUSEPPE CACACE/AFP/Getty Images Israeli and U.S. attacks on Iranian cities and nuclear facilities have put energy markets on edge as traders assess the risk that oil exports from a key Middle Eastern producer could be disrupted. U.S. oil prices had jumped since June 12, the day before Israeli launched its first strikes in Iran. The U.S. entered the war late Saturday, when its military bombed three sites, President Donald Trump said, to halt Iran's ability to enrich uranium…