Oil prices fell on Friday, with U.S. crude heading for a seventh weekly decline amid increasing concerns about slowing global economic growth that could hit demand for petroleum products as inventories build. Brent crude oil futures LCOc1 were down 3 cents at $71.40 a barrel by 00229 GMT. U.S. West Texas Intermediate (WTI) crude futures CLc1 dropped 1 cent to $65.45 a barrel. Brent is heading for a 2 percent decline this week, a third consecutive weekly drop. WTI is on track for a seventh week of losses, with a fall of more than 3 percent. Data on Wednesday showing a large build in U.S. inventories fostered fears about the outlook for fuel demand, while crude was also pressured by broader […]