A day before U.S. President Donald Trump withdrew from the Iran nuclear deal, one of his senior officials phoned Saudi Arabia to ask the world’s largest oil exporter to help keep prices stable if the decision disrupted supply. Riyadh, Tehran’s arch rival, has long been a close Washington ally, but direct pressure on a member of Organization of the Petroleum Exporting Countries (OPEC) over oil policies is rare. Washington last pressed Saudi Arabia to increase output in 2012. Riyadh has said that even though prices have spiked to over $80 per barrel, the highest since 2014, the market has yet to recover from a long slump. Until the phone call, Saudi officials had been saying it was too early to raise output. Riyadh took this line partly because higher crude prices could help the stock […]