A gas station in Savoy, Ill., charges $3.95 a gallon for regular gasoline Friday, Aug. 3, 2012. Gas prices in much of the Midwest have sharply increased this week, moving close to or be

 

              A gas station in Savoy, Ill., charges $3.95 a gallon for regular gasoline Friday, Aug. 3, 2012. Gas prices in much of the Midwest have sharply increased this week, moving close to or be
A gas station in Savoy, Ill., charges $3.95 a gallon for regular gasoline Friday, Aug. 3, 2012. Gas prices in much of the Midwest have sharply increased this week, moving close to or beyond $4 a gallon. (AP Photo/David Mercer)