CBS News | Oil Price Retreat Slams Producers -- WSJ Nasdaq The world's biggest oil companies posted losses or steep declines in profit for the second quarter, and now face a daunting remainder of the year as crude prices retreat to about $41 a barrel. Exxon Mobil Corp. on Friday reported its quarterly profit ... Cheaper oil sends Exxon, Chevron to worst quarter in years Low Crude Prices Hammer Big Oil Companies Profit at oil firms hit by fall in crude |