NEW YORK, March 4 (Xinhua) -- Oil prices edged up on Wednesday.
The West Texas Intermediate (WTI) for April delivery increased by 10 cents, or 0.13 percent, to settle at 74.66 U.S. dollars a barrel on the New York Mercantile Exchange. Brent crude for May delivery closed flat and settled at 81.4 dollars a barrel on the London ICE Futures Exchange.
