花旗集团预测到2020年石油售价将降至仅75美元一桶，而经合组合国际预测部前负责人认为石油价格将逼近每桶50美元。
Citigroup estimates that, by 2020, oil will cost just $75 per barrel, and the former head of international forecasting at the OECD suggests that the number could be closer to $50.