Oil fell to settle near $85 a barrel, dropping from a five-month high alongside lower equities, as traders assessed diplomatic efforts in the Middle East.
Oil lost more of the ground it had gained early this week as US crude and gasoline inventories increased, undercutting expectations for tightening supplies.
Crude futures fell as signs of a thaw in US relations with sanctioned oil producers Iran and Venezuela undercut expectations of tightening global supplies.