“Some traders have begun to place bets on oil prices slumping to as low as $20 a barrel – underscoring the scale of the crude rout and the murky outlook for the world’s staple industrial commodity,” the Financial Times reports.  

“A few months ago such as scenario would have appeared apocalyptic – even at the peak of the financial crisis spot prices never went below $30 – but the crash has led some investors to buy options on prices falling even further.”