CNBC | Oil price dips below $40 a barrel on worry over OPEC supply, rig count rise CNBC Production in July by the Organization of the Petroleum Exporting Countries likely rose to its highest in recent history, a Reuters survey found on Friday, as Iraq pumped more and Nigeria squeezed out additional crude exports despite militant attacks ... Oil Prices Probe Bear Territory from Oversupply Crude oil is tumbling again after its worst month in a year Oil futures turn lower as glut concerns remain in focus |