Latest proposals in Arkansas, Louisiana, Oklahoma and Missouri to raise infrastructure funds .
Pennsylvania leads nation with highest combined federal, state taxes
Volatility a friend to retailers in February, a foe in March
One effort for healthy foods, two to keep the sky blue
More than 93% of gas stations selling regular at more than $1.50
Retailers take advantage of drop in wholesale prices to blow past national average
Approaching summer driving season will soon pressure pump prices
As the retail average drops below milestone, worrying signs arise that demand is not holding up
Federal charges stem from alleged fuel rebate scheme by certain Pilot Flying J sales division.