Crude oil prices were slightly lower Monday morning, unable to trim steep recent losses as the dollar remained firm against major rivals.

A strong dollar and a global oil supply glut have driven crude oil prices sharply lower over the past few weeks.

Iranian oil supplies expected to flood an already flush crude oil market if U.S. lawmakers agree to a deal that will remove sanctions on Tehran.

U.S. crude oil for August was down 8 cents at $50.81 a barrel.

The material has been provided by InstaForex Company – www.instaforex.com