U.S. consumers may be in for seasonal volatility in retail gasoline prices as crude oil market dynamics contrast with refinery-side pressures, analysts said. Motor club AAA reported a national average retail price for a gallon of regular unleaded at $2.05 per gallon, relatively unchanged from one week ago but 24 cents, or 13 percent, higher than one month ago. In a weekly retail market report , AAA said drivers are paying more at the pump in part because refiners have started putting the summer blend of gasoline on the market. Regional prices may vary dramatically as this fuel blend is slow to deliver. “This blend costs more to produce, and drivers likely will notice higher prices in areas required […]