The light and sweet crudes from Saudi by its largest coker refinery at Qingdao are priced on a floating formulas against a basket of benchmark crudes.

其青岛焦化厂按每桶基准原油的浮动公式，对购入的沙特阿拉伯轻质低硫原油定价。

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It is no coincidence that the bench mark oils, like North Sea Brent or West Texas, are light sweet crudes.

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These imbalance is due to the fact that light and sweet crudes have been more profitable as they require less processing to get to the market.

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Light, sweet crudes are cheaper to pump, transport, and distill and produce more gasoline per barrel than other types of crudes so it generally goes for more dollars per barrel than others.

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