In the past few decades, oil is one of the most interesting problems in the world economy. We can say without a mineral that use diverse scope and popularity as oil and gas. With the advancement of science and technology by storm, not all are able to calculate the contribution of oil to human life. Demand for oil and gas in the world is increasing, due to the scarcity and uneven distribution (Middle East khuvuc focused oil and natural gas in the world to unstable political situation) that the issue of energy security has become a major concern of every nation.
đang được dịch, vui lòng đợi..
