Oil prices inch up on signs of tighter global supply
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NEW YORK (Reuters) - Oil futures edged up on Thursday as a drop in crude exports from OPEC's de facto leader, Saudi Arabia, and a draw in U.S. drilling rigs and oil inventories supported prices.Brent crude futures settled at $71.97 a barrel, up 35 cents from their last close and near Wednesday's five-month high of $72.27. Brent saw a weekly gain of 0.6 percent, marking the fourth consecutive weekly rise for the international benchmark. In post-settlement trade, the contract added 4 cents to..