It was the underpriced oil from the 1990's that got us into trouble. Crude was running less than $11 a barrel. Retail, including the 38.4 cents per gallon State and Federal tax was as low as $0.73 a gallon!
Even a minimum wage earner could afford a 10 MPG vehicle. But if you thought fuel worries from 1973, 1979, 1984, 1991 and 1995 were over, guess again.
THe supply market, once dominated by OPEC in 1974, has been seeing increased competetion from indepndents like Russia. And because it takes 18-36 months to respond to shortages, we will always be experiencing fluctuations in the crude market.
The addiction to cheap 1999 fuel created the demand we are seeing today and caused the refineries to be overtaxed.
It only takes a 10% shortage in supply to see a 100% increase in price, given the inflexibility of demand once the addiction (read this as investment in durable goods, namely a car) is present.