Analysts and traders pointed to a slew of causes for the price surge, but put the main onus on the continued flow of speculative cash into the oil market and other commodities like coal and platinum.

• 分析师和交易员们指出，油价飙升有一系列原因，但最主要的是由于投机性资金不断注入石油市场以及煤和铂金等其他商品市场。