While it takes 3 -4 cents per litre for refiners to convert from crude to gasoline, retail gas prices are based on the wholesale cost of gasoline price at NYMEX, taxes, and the retail margin.

• 炼油商将原油转化为汽油的花费大约每升3-4分钱，而汽油零售价则取决于纽约期货交易市场的汽油交易批发价、税收、以及销售利润。