CNBC | Dow drops 250 points as US crude plunges 5% CNBC U.S. stocks traded lower Tuesday as renewed declines in oil prices weighed amid mixed reaction to some key earnings reports. The Dow Jones industrial average fell more than 200 points in morning trade. Goldman Sachs, Exxon Mobil and Chevron were the ... Exxon Mobil Profit Declines as Crude Oil, Gas Markets Crash Exxon's 4Q and Annual Profit Plunge With Oil Prices Exxon Mobil profits fall 57 percent, but oil giant avoids losses |