U.S. gasoline prices rose for a second week in a row, to average $3.40 per gallon on Monday, up by 6.2 cents from a week ago, amid rising demand, ongoing refinery maintenance, and the switch to summer gasoline, GasBuddy said today. Still, the national average price of regular gasoline is 4.5 cents per gallon lower than a year ago, said GasBuddy, which has compiled price data from more than 12 million individual price reports covering over 150,000 gas stations. The national average price of diesel, on the other hand, has fallen by 1.3…
