目前共有75种期货合约在交易所挂牌交易，Dicker估计金融市场上的原油交易比实体市场交易总额要大15倍之多。
Dicker estimates the financial market for oil is 15 times greater than the amount of actual oil being traded, with 75 types of futures being sold on exchanges.
十年前，原油交易价格大约是十美元每桶，现在这个价格是一百三十五美元，有人预言（尽管语言来自投机者）未来可能最高达到两百美元每桶，最低也有六十美元每桶。
Crude oil traded at $10 a barrel 10 years ago. It is $135 today, with predictions (albeit by speculators) that it may go as high as $200 – or down to $60.
新技术的出现使原油市场每天增加了约420万桶的交易。
The advent of new technologies has added about 4.2 million barrels per day to the crude oil market.
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