Shares are mixed in Asian trading after a dip in oil prices helped send the U.S. stock market to its best day since the war in Iran began. Early Tuesday, oil bounced back slightly with Brent crude selling for $104 a barrel. On Monday, the S&P 500 climbed 1% for its biggest gain in five weeks. The Dow Jones Industrial Average added 0.8%, and the Nasdaq composite jumped 1.2%. The price for a barrel of benchmark U.S. crude fell toward $93 after topping $102 in the morning. By early Tuesday, it was trading at nearly $98 a barrel.