Reuters | Oil shares lift global stocks, crude dips on doubt over OPEC deal Reuters Crude prices fell after Wednesday's near 6 percent surge as investors questioned whether OPEC's first deal to limit output since 2008 would restore balance to the oversupplied oil market. But the surprise agreement boosted investors' appetite for ... Opec agrees on oil output cut at Algiers meeting Oil prices slip as markets question details of OPEC's first deal in eight years Energy stocks rally hard after OPEC oil deal |