CNBC | Oil tumbles more than 7% to $50.42, now down more than 30% in 7 weeks CNBC Oil prices fell on Friday to their lowest levels in more than a year, deepening a rapid seven-week sell-off that has plunged crude futures deep into a bear market. Friday's declines further ramp up the pressure on OPEC ahead of a much-anticipated ... Oil price plummets to low not seen since October 2017 Five Reasons Why Oil Prices Hit A 2018 Low On Black Friday Oil meltdown deepens as crude crashes below $51 |