Gasoline prices, on the rise for more than three weeks, could top all-time highs by Memorial Day.
Nationally, a gallon of regular averages $3.81 — up 10 cents in the last week and nearly 96 cents above year-ago levels. Industry experts say prices could surpass July 2008's record $4.11 nationally as seasonal demand, speculators and political uncertainty in Libya and the Middle East propel oil prices.
"We could easily tack on another 30 to 40 cents a gallon," said Darin Newsom, senior …






