61.   For gasoline, the end of the summer driving season often means lower prices as demand dips and refineries convert more of their oil to heating fuel.

62.   Gas stations are taking advantage of changing market conditions to rake in heftier profits margins during the busiest driving season.

63.   Gas sold in the Midwest during the summer driving season is treated with cleaner-burning ethanol, a corn derivative, to meet federal emissions standards.

64.   Gasoline prices traditionally increase with the approach and during the heavy summer driving season.

65.   Many are now saying the all-time could be challenged Friday, just ahead of Memorial Day, which is the traditional start of the summer driving season.

66.   Many are now saying the all-time could be challenged Friday, just ahead of Memorial Day, the traditional start of the summer driving season.

67.   Others say the market has now priced in the full summer driving season, and that prices are at their peak.

68.   Still underpinning prices are fears of regional supply crunches of key reformulated gasoline supplies just ahead of the traditional Memorial Day kickoff to the summer driving season.

69.   The agency said even more oil will be needed later this year, during the peak driving season in industrialized nations.

70.   The big question is whether increases in refinery runs can build up stocks near record lows by the official start of driving season next month, analysts say.