Fire billows out of fuel storage tanks at the Amuay oil refinery in Punto Fiji in the Peninsula of Paraguana on Monday.A fire burned for a third day in two fuel storage tanks at Vanezueal's biggest refinery on Monday,putting in doubt plans to quickly restart the facility after one of the worst accidents to hit the global oil industry for decades.The tank on the laft caught fire today and is now the third fuel storage tank burning at the refinery.