EN
Crude oil is a key factor of transport with a tremendous impact on modern societies. It has been noticed that the consumption of this resource depends on three factors: population size, access to resources and economic development. The largest amount of crude oil is used in the USA. The world's consumption of crude oil is concentrated on the territories of several areas in the most developed countries, such as: USA, China, Russia, Japan, and the countries of Western Europe. The surplus of crude oil is mainly possessed by the countries of the Middle East, Venezuela, Russia, and several African states. Crude oil trade is controlled by the Members of OPEC, who establish the prices of that resource.