CNBC | Oil Prices Sag on Concerns About OPEC Deal on Output Cut Wall Street Journal Oil prices fell amid fresh worries about OPEC's ability to coordinate a production cut, and a broader selloff Friday afternoon on the prospect of a new chapter in the Federal Bureau of Investigation's investigation into Democratic presidential ... Oil settles down 2% at $48.70, records biggest weekly loss since mid-September Oil prices log a loss, snap weekly win streak as major producers prep for confab Oil prices slip, OPEC doubts offset US rig count decline |