oil futures declined on friday with us prices posting a loss of more than 9 for the week demand concerns are on the rise because of growing expectations that the global economy is heading for a slowdown in the coming months said fawad razaqzada market analyst at city index and forexcom west texas intermediate crude for july delivery cln22 fell 803 or 68 to settle at 10956 a barrel on the new york mercantile exchange the weekly loss for us benchmark crude followed seven straight weeks of gains factset data show