Gas Prices

I drove through Cadillac, Michigan, on my way up to Elk Rapids this evening. At the south end of town, gas was $3.07. In the middle of town, it was $3.06. At the north end of town, prices varied, but it was $3.18 at one station, $3.17 at another. I understand that gas closed at $101 a barrel today, but that sure is a great deal of variation for one small town.