US oil prices end down 7.7% at $50.42/barrel
US oil prices finished sharply lower Friday, weighed down by worries over excess supply and tepid demand amid global economic uncertainty.
The benchmark US contract, West Texas Intermediate for January delivery, dropped $4.21 to $50.42 a barrel in a holiday-shortened session, a decline of 7.7 percent and the lowest level in more than a year.
