Jitters returned to oil markets late in the week as concerns about a supply increase from OPEC and its allies and a weaker-than-expected jobs report send prices lower. WTI rose three of five trading days on the New York Mercantile Exchange,

HOUSTON -Oil prices fell more than $2 a barrel on Friday morning on jitters about a possible increase in production by OPEC and its allies, while weaker-than-expected U.S. jobs report fed worries about demand.

Oil futures fell for a second straight session as a weak U.S. employment report added economic worries to concerns about U.S. tariffs curbing demand.