ReutersCommodity currencies firm, yen sags after OPEC oil curb agreementReutersTOKYO Commodity-linked currencies held firm on Thursday after OPEC agreed to cut oil output in the first such deal since 2008, boosting oil prices while a broad gain in risk ass …

ReutersAsian shares tumble as oil gloom deepensReutersThe unrelenting slide in oil prices showed little signs of slowing in the new year, plunging as much as 6 percent on Monday to hit their lowest since spring 2009, as increased output of U.S. shale oil h …