Oil forecast jumps $6 a barrel

Crude futures briefly jumped more than $2 a barrel Tuesday after the Energy Department raised its oil-price forecast by $6 a barrel and as traders remain worried that summer storms in the Gulf of Mexico could curtail petroleum output.

The Energy Department, which oversees U.S. supply and demand statistics, said Tuesday that it expects oil prices to average $59 a barrel through September, up from its estimate of $53 a barrel a month ago.