Oil rose to its highest level in a year after Russian president Vladimir Putin said that he backed efforts for a production cap in the clearest sign yet that the country would join any global supply pact. Speaking at an energy conference in Istanbul, Mr Putin said he hoped that the OPEC producers’ group would agree on output curbs for member nations at its next ministerial meeting in November. For more, Kevin Baxter, Global Commodities Spot Editor at the Wall Street Journal, joined Share Radio.