NEW YORK, July 21 (Xinhua) -- Oil prices climbed on Tuesday.
The West Texas Intermediate for August delivery went up 1.68 U.S. dollars, or 2.02 percent, to settle at 84.91 dollars a barrel on the New York Mercantile Exchange. Brent crude for September delivery added 1.79 dollars, or 2.01 percent, to settle at 91.01 dollars a barrel on the London ICE Futures Exchange.
