Follow May 5 (Reuters) - Marathon Petroleum(MPC.N), opens new tab on Tuesday beat Wall Street estimates for first- quarter profit, benefiting from stronger refining margins amid tighter global supply driven by the Middle East war. Marathon Petroleum first-quarter profit beats estimates on refining margin boost | Reuters Exclusive news, data and analytics for financial market professionalsLearn more aboutRefinitiv A Marathon sign is seen outside Marathon Petroleum (MPC.N) Detroit refinery in Detroit, Michiga ...