U.S. Attorney General Eric Holder has called for American government investigators and regulators to be on alert for instances of fraud and manipulation that keep retail gasoline prices artificially high.
Exxon Mobil reported a first-quarter profit Thursday of $10.7 billion, a 69 percent jump from the year before as higher crude oil prices, fatter U.S. oil refining and marketing margins, and a revival in global demand for petrochemicals boosted earnings.