Reuters | Oil prices dip on scepticism ahead of OPEC meeting Reuters SINGAPORE Oil prices dipped on Tuesday on doubts that producer cartel OPEC will be able to hammer out a meaningful output cut during a meeting on Wednesday aimed at reining in a global supply overhang and propping up prices. International Brent ... Oil Prices Are All Over The Place Ahead Of Key OPEC Meeting How Iran, Russia Could Derail Oil-Production Deal OPEC Tries to Save Oil Deal as Tensions Grow |