Crude oil plays a very important role in Chinese policy. Beijing can count on rather limited natural resources, therefore must seek them abroad. Despite the systematic growth of domestic oil output, China still remains a major global importer. Its reserves of crude oil stay on a definitely insufficient level when compared with the permanent growing consumption. Beijing's policy leads to creation of a wide mechanism of supply diversification. Cooperation in this sphere allows China to create a mechanism of dialogue with other countries and develop many forms of cooperation with them.