So that is wholesale gas prices? My gas in Minneapolis has been at $3.00+ for the last 4 years. I was always commenting on hearing cheaper gas prices and would say NOT HERE. The cheapest I saw in the last year was $2.85 for a couple of days and then shot over $3.00 again. I assume Chicago would be so close to Minneapolis pricing since both tax the heck out of fuel. This raise in prices is almost moot, as it was always in the $3.00+ range.That is the Chicago mercantile traded price of gasoline in USD. It provides basis of what the retail price at the station becomes after adding transportation costs, marketing cost, all taxes and profits.