Crude-oil futures jumped more than 7% Friday, as reports about the potential for an Israeli attack on Iran combined with a slide in the U.S. dollar to lift prices to an all-time high above $138 a barrel.
"It's Iran -- all Iran," said Bernard Picchi, a senior managing director at Wall Street Access.

Comments from Israel's transport minister, reportedly a close adviser to Prime Minister Ehud Olmert, that an attack on Iranian nuclear sites looked "unavoidable" has driven buying to a fever pitch, according to Michael Fitzpatrick, an analyst at MF Global.