MarketWatch | Doubts linger over OPEC's preliminary deal on oil output MarketWatch The 14-nation group of major oil producers is targeting a production cap that would hold output to between 32.5 million and 33 million barrels a day. OPEC's latest monthly oil report pegged current member output at 33.24 million barrels a day. But the ... Asia markets end mixed; Japanese exporters, banks sell-off |