The cost of gas is up across the country, including in Maryland, and is inching toward the highest price in three years.

Gas is going up about a penny every other day — 15 cents in the past month.

“We’ll be paying the highest prices for this time of year since 2014,” said Christine Delise with AAA.

Gas companies are changing over to a different summer blend. To do so, some refineries shut down, leading to the classic market principal of supply and demand. A tighter supply means they can demand more for your fuel.

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