text: Crude closes above \$52 Crude futures have surged above 52 dollars a barrel, reaching a new high in New York. Traders were reacting to a strike threat by Nigerian oil workers and to word that petroleum output in 
inputs: Crude closes above \$52 Crude futures have surged above 52 dollars a barrel, reaching a new high in New York. Traders were reacting to a strike threat by Nigerian oil workers and to word that petroleum output in 