A U.S. sovereign downgrade by Moody's, meanwhile, dampened the economic outlook for the world's biggest energy consumer and kept oil prices from rising higher. The ratings agency cut America's ...

Oil prices barely moved on Tuesday as traders weighed the impact on supply from a possible breakdown in U.S.-Iran talks on ...

WTI has rebounded from $55 and is consolidating below $65 in preparation for the next move, while natural gas has dropped back to $3.