Greed? Oil company profits are down the first quarter. Can't remember which oil giant, but they paid $10 billion in taxes and only made $8 billion in profit.

Exxon makes about $0.04 per gallon sold at ~$4/gallon. The gas station selling it makes ~$0.01, sometimes no profit at all, they rely on merchandise/food sales. The government/s, depending on which state, makes $0.40-$0.80 per gallon.