Last year around August time, I just happened across an invoice in the office at the company I was working for at the time. They were a semi-large oil company in the area, covering gas/oil heating, and also owned a large number of gas stations. At the time, prices were around 3 to 3.25/gallon, they were buying the gas at around $1.49/gallon, and the only stop the gas made after their purchase, was into the tanks at the gas station. So right there you were seeing more than a dollar worth of mark-up by the oil company and the gas station.
