(AP) -- Get ready for a little bit more pain at the pump this summer.
Crude oil prices are at the highest level in more than three years and expected to climb higher, pushing up gasoline prices along the way.
The U.S. daily national average for regular gasoline is now $2.81 per gallon. That's up from about $2.39 per gallon a year ago, according to Oil Price Information Service. And across the U.S., 13 percent of gas stations are charging $3 per gallon or more, AAA said last week.
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