We built up a network model of international crude oil trade based on complex network theory and studied the
properties of China including: trade relation and trade volume, control and anti-control abilities, and selection of trade
partners. And we came to the conclusion that both the control ability and anti-control ability of China are rising.
Trading with partners who have closer relations among each other can improve the anti-control ability of China;
however, it is not so obvious in improving the control ability.