The price of a barrel of crude oil held close to $93 per barrel Friday after the European Commission downgraded its eurozone economic forecast. The commission had predicted the eurozone\'s economy would grow slightly. The change calls for a slight contraction for 2013. On the New York Mercantile Exchange, West Texas Intermediate crude oil for April delivery added 34 cents to $93.36 per barrel. Gasoline prices on the exchange added 3.87 cents to $3.2748 per gallon. Heating oil gained 0.75 cents to $3.1074 per gallon. Natural gas gained 3.5 cents to $3.277 per million British thermal units. At the pump, the national average price for a gallon of regular unleaded gasoline rose to $3.781 per gallon from Thursday\'s $3.778, the AAA Daily Fuel Gauge Report said.