U.S. retail-regular grade gasoline averaged $2.61 a gallon on Monday, an increase of 4 cents per gallon from the same time last year, according to the Energy Information Administration. Higher crude prices have kept the cost of gasoline elevated compared to the last few years.

“Four years ago this weekend OPEC decided to open the spigots and that led to prices plummeting and for the last three years we’ve been dealing with relatively low prices although they have been creeping up year after year,” said Patrick DeHaan, head of petroleum analysis at GasBuddy.