If you know anything about retail petrol/gas pricing then you wouldnt be talking shit. The price of the oil is governed by lot of factors.
US companies own lot of oil wells and refineries in Middle East, South/North America, Alaska etc. Almost all of the oil US buys is bought in the New York Oil bourse in their own currency. Secondly considering the infrastructure US has built, the cost of transportation is severly low.
All these factors lower down the cost of a gallon of gas sold at retail outlets across the nation.