1 to 2 cents per gallon was the calculated effect of eliminating the 2.5 billion in tax breaks. Of course that is assuming the oil companies can't possibly choose to reduce their profits, pay or lobbying efforts. Glad we're all sharing the sacrifice during these lean times. Of course, you know gas would actually go up more than that because the companies could blame it on politics...thanks to those ever useful lobbyists. The Senators voting to keep the tax breaks received, on average, 4x as much money from the industry as those voting against it.
Two words, Corporate Welfare. At least they are not abusing the system and driving fancy cars like all those "welfare queens" out there