Wall Street’s main indexes opened mixed on Tuesday as fresh hostilities in the Middle East pushed oil prices to their highest level since late July. The Dow Jones Industrial Average fell 303.8 points, or 0.57%, to 53,110.45, while the S&P 500 slipped 0.8 points, or 0.01%, to 7,717.81. The Nasdaq Composite rose 21.6 points, or 0.08%, to 26,528.571. Investors are awaiting inflation data due later this week.