If oil prices are any measure, Iran just flinched.

U.S. gas prices are continuing to rise — giving drivers across the country another headache at the pump.

Drivers are in for another headache at the pump as U.S. gas prices continue to rise.

A 99-day run of falling gasoline prices — a streak that gave consumers a glimmer of hope that red-hot inflation might be cooling — has ended, with pump prices still much higher than a year ago.

After 99 consecutive days of declining gasoline prices, the cost for a gallon has edged a penny higher.

Gas prices hit record highs just two months ago, but now they're sinking below $4 a gallon.

U.S. gas prices have dipped under $4 a gallon for the first time in more than five months.

iStock / RapidEyeThe growth of fuel-efficient and electric cars means Americans are paying fewer gas taxes. A total of 13 states raised gas taxes Monday, at the start of their fiscal years. Second is Ohio, where taxes jumped to 38.6 cents a gallon up 10.5 cents from the previous gas tax. In California, where average gas prices were already at the highest level nationwide, the state gas taxes rose 5.6 cents a gallon, about a 10% increase. That means the state now has the highest state gas taxes, passing Pennsylvania, which left its gas taxes unchanged.