Americans driving on their summer vacations will enjoy the cheapest gasoline in 12 years as prices stall just above $2 a gallon. Drivers will pay 59 cents a gallon less at the pump this summer than a year ago and $1.55 below 2014, when oil prices peaked above $100 a barrel, the Energy Information Administration said Tuesday. Gasoline demand this summer will increase 1.4 percent from last year to a record. “Low pump prices and continuing growth in employment contribute to more driving, resulting in a forecast of record-high gasoline demand this summer,” EIA Administrator Adam Sieminski said in an e-mailed statement. “For all of 2016, the average household will save about $350 on gasoline purchases compared to last year.” Americans might save as much as $15 billion on gasoline during June, July and August, compared to the same period last year, which would work out to about $70 […]