Delaware gas prices were unchanged over the weekend, and are now a penny above the national average. AAA Mid-Atlantic says Delaware’s average price for a gallon of gas is $3.43, down just one penny over the past week. The price at the pump has dropped 15 cents from it’s average one month ago of $3.58. Delaware’s average is lowest in the Tri-State region. Pennsylvania’s average is $3.61, while New Jersey drivers are paying $3.52.