CNBC | Oil went through a flash crash overnight, putting an already fragile market on edge CNBC Oil prices plunged below $44 a barrel overnight in a matter of minutes, putting the market on edge as futures tested yet another key technical level. Traders blamed forced margin calls and computer trading for the so-called flash crash, but were not ... Markets: Oil slide rattles nerves; US jobs data ahead Oil price under pressure on over-supply fear |