The Guardian | Oil producers prepare for prices to halve to $20 a barrel The Guardian The world's leading oil producers are preparing for the possibility of oil prices halving to $20 a barrel after a second day of financial market turmoil saw a fresh slide in crude, the lowest iron ore prices in a decade, and losses on global stock markets. US oil settles at $37.51 a barrel after hitting 2009 lows Oil Prices Waver After Dipping Below $40 Oil benchmark falls below $40 a barrel |