Easing oil costs and tepid domestic demand helped prices at the gas pump ease up over the past week. That from AAA, which reports that Monday’s average price per gallon is $3.10, which is down by more than a cent. The average price in New York State has dropped by a fraction of a penny and is now $3.17. And Chautauqua County’s average is $3.28, which is down over four cents. One year ago, the national and statewide averages were $3.15 and $3.28, respectively…