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.