I carried some cans to the local mart yesterday to get gas for the mower and such. I always buy the ethanol free gas for them and have always had to pay quite a bit more per gallon for it. Well, yesterday it was two cents cheaper per gallon at $1.57 while the corn gas was $1.59. I checked all of the pumps to make sure. Could this be because of the price of oil right now or maybe a mistake that the store made?