CNBC | Stocks down 1.8% after IEA warning pushes oil lower CNBC European markets extended losses on Friday as sentiment is damaged by yet more declines in oil prices. The pan-European STOXX 600 was down 1.8 percent with all major indices in negative territory. Cheap Oil Gives Little Help to US Spending Oil hits new seven-year low on glut warning Oil slides to new seven-year low as IEA warns of worse glut |