(Undated) – The national average for gas remains unchanged from Friday at $3.45 a gallon. However, the price per gallon has fallen a penny in Illinois to $3.63 a gallon. In Indiana, the statewide average fell four cents from Friday to $3.37 a gallon. Oklahoma drivers are enjoying the lowest statewide average at just $2.97 a gallon. In California, the statewide average is $4.86 a gallon.
