CNBC | Oil plunges 7% to lowest level in more than a year CNBC Oil prices slumped to their lowest levels of 2018 Friday, ramping up the pressure on OPEC ahead of a much-anticipated meeting between the influential oil cartel and its allied partners. International benchmark Brent crude traded at around $59.47 a ... Oil price plummets to low not seen since November 2017 A slippery trade: oil slump proves bears right Oil Prices Plunge on Global Growth Concerns |