(EnergyAsia, March 6) — Singapore-listed China Petrotech Holdings Ltd said its 2006 revenue grew by 35% to RMB89.9 million as its strategic shift to oilfield services begun to bear fruit. Revenue from oilfield services soared to RMB64.5 million in FY2006 from just RMB2.9 million in FY2005.   The company said it oilfield services revenue came…