Reuters | World stock markets dip with oil price, sterling firms Reuters In the Middle East, Qatar's main stock index fell more than 7 percent after Saudi Arabia - the world's biggest crude oil exporter - the United Arab Emirates, Egypt and Bahrain cut ties with Qatar, accusing the Gulf Arab state of supporting terrorism ... Oil dips as Qatar rift seen threat to output cuts, sterling firms Latest Political Developments And Poor Fundamentals Indicate $40 Oil Is On The Way COLUMN-Hedge funds keep it cagey on oil drawdown prospects: Kemp |