Oil prices rose on Tuesday amid heightened tensions in the Middle East after Israel's military chief said his country would respond to Iran's weekend missile and drone attack amid calls for restraint by allies, Reuters reported.
Brent futures for June delivery rose 46 cents, or 0.5%, to $90.56 a barrel by 0005 GMT. U.S. crude futures for May delivery rose 43 cents, or 0.5%, to $85.84 a barrel.
Oil prices had ended Monday's session lower after Iran's weekend attack on Israel proved to be less damaging than anticipated, initially easing concerns of a quickly intensifying conflict that could displace crude barrels.
The attack, which Iran called retaliation for an air strike on its Damascus consulate, caused only modest damage, with missiles shot down by Israel's Iron Dome defence system.
But Israel's Prime Minister Benjamin Netanyahu on Monday summoned his war cabinet for the second time in less than 24 hours to weigh how to react to Iran's first-ever direct attack on Israel, a government source said. That raised market concerns that retaliatory measures could impact oil supply.