(NEW YORK)Shares of some top oil companies were down at the close of trading: Chevron fell $3.49 or 4.5 percent, to $73.35.READ MORE

(NEW YORK)Shares of some top oil companies are up at noon: Chevron rose $1.23 or 1.6 percent, to $78.07.READ MORE

(NEW YORK)Shares of some top oil companies are up at 10 a.m.: Chevron rose $1.04 or 1.4 percent, to $77.88.READ MORE

(NEW YORK)Shares of ConocoPhillips tumbled amid a broad market sell-off Monday as evidence mounted that the U.S. economic crisis has spread overseas. Shares fell $1.40, or 2.1 percent, to $6...READ MORE

(NEW YORK)Shares of some top oil companies were down at the close of trading: Chevron fell $2.54 or 3.2 percent, to $76.84.READ MORE

(NEW YORK)Shares of some top oil companies are down at noon: Chevron fell $3.51 or 4.4 percent, to $75.87.READ MORE

(NEW YORK)Shares in the nation's largest oil, gas and refining companies fell Monday as evidence spread of a global slowdown that would likely spoil the world's appetite for energy.READ MORE