Zubkov noted that if the oil price remains at $50-60, this will be an optimal price for 2016: “Currently, the oil price exceeds $40 a barrel. It’s difficult to say what will be in the future. Oil price is affected by several factors, as well as growth rate of economies of the different countries. Along with this, Iran also exports its oil. In my view, the OPEC and other countries must think about reduction of production rather than freezing. In this case the oil price may exceed $60”.