Shares of oil and gas firm Medco Energi Internasional (MEDC) ended lower by 3.5% to Rp1515 on Thursday (September 21), but the stock has gained 50% in the past three weeks alone. At the last quoted price, MEDC was worth Rp40.25 trillion, substantially smaller than the ‘value’ of its minority ownership in gold and copper producer PT Amman Mineral Internasional Tbk (AMMN).To subscribe please click here