'Prices could fall to zero': Brent crude drops to a 2-decade low as the global oil rout continues

· Brent crude oil dropped to a two-decade low Wednesday, trading at as low as $15.99 per barrel as the global oil rout continues.
· Brent's slump comes days after US oil prices turned negative for the first time in history.
· One analyst said while Brent prices are unlikely to turn negative, but prices could hit zero if...