Why is Gas So Expensive?

At least once a week, someone comments on the price of gas. It went through the roof, it came down again. Why? Why does it fluctuate so much? Did you know that the price of gas at the station reflects more than just gasoine? As of May, 2007, unrefined crude oil was 46.1% of the retail price. Refining costs and profits accounted for 27.9%. Federal and state taxes were 12.7% and distribution and marketing costs were 13.3%. For more up to date statistics, go to tonto.eia.doe.gov/oog/info/gdu/gaspump.html