Paul Eisenstein :

If you think $2 a gallon gas is a bargain, imagine what the reaction was when a pair of service stations in Northern Michigan got into an old-fashioned price war this week.
 The Beacon & Bridge Market, in the town of Houghton Lake, was first to fire a shot, dropping the price of regular unleaded to just 78 cents a gallon. A neighboring station quickly responded and, for a brief while, motorists were able to fill up for as little as 47 cents a gallon, according to a report from a TV station in the nearby town of Clio.
 
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 According to GasBuddy.com, the two stations are now back up a bit, just slightly over $1.50 a gallon. Michigan, as a whole, is now averaging just under $1.70, according to tracking site GasBuddy.com, and the U.S., as a whole is down to $1.873 as of the afternoon of January 19th.