Tulsa, Okla. — It's costing more to fill up your tank at the gas pump.
Gas prices spiked Tuesday to cost about 10-cents more per gallon for E-10 regular.
Expect to pay $2.35 per gallon at most retailers today.
Gas prices around Tulsa were $1.86 at the end of last year.
Prices may rise again as refineries gear up for the summer blend that retailers sell during warmer weather to help control air pollution.