I gassed up a couple of weekends ago in Detroit for $1.55, refueled in Indiana for $1.41, went to Chicago where it was $1.89-$1.99, stopped at the same Indiana station two days later and it was $1.35 and gassed up again in Detroit Sunday for $1.39. Make of it what you will.
Most high gas prices are the results of government taxes and regulations. Politicians blame oil company gouging because they know the public is pretty stupid and ignorant and will chase the ball when it's thrown.