Futures Movers: U.S. oil benchmark ends below $40 a barrel, down over 7% for the week

Oil futures decline on Friday, with U.S. prices ending below $40 a barrel for the first time since early July, contributing to a loss for the week as concerns over prospects for demand and strength in the U.S. dollar push prices to their lowest since July.

Oil futures decline on Friday, with U.S. prices ending below $40 a barrel for the first time since early July, contributing to a loss for the week as concerns over prospects for demand and strength in the U.S. dollar push prices to their lowest since July.