From the perspective of import sources, Russia, Angola and Saudi Arabia have always been the top three, but the proportion of Saudi imports has declined in the past three years, and Russia has begun to occupy the position of the largest import source country, because Russia borders China.

Pipeline transportation is conducive to saving costs, so it also promotes Sino-Russian energy cooperation. Angola has always been Africa's largest exporter of crude oil to China, so it is a win-win choice for China to help Africa develop its oil resources.

Characteristics of petroleum

The top three countries are Iraq and Oman, which are basically the fourth and fifth in these three years. It is worth noting that Oman's output is very low, only 6,543.8+0,000 barrels per day, but almost all of them are exported to China, so the pricing of crude oil futures in Shanghai Energy Exchange is also based on Oman crude oil to some extent. The good quality of Oman crude oil is also an important price weight in Dubai trading day.

Iran has always been the sixth place from 20 16 to 20 17, and it was also the third place of the Organization of Petroleum Exporting Countries before 20 18. However, with the US sanctions against Iran, Iran's crude oil production has been declining. By 20 18, Iran's crude oil exports to China had fallen to the seventh place and were occupied by Brazil, which came from behind.