The blue book of Petrochina Company Limited(601857) circulation industry development report (20212022) released by Petrochina Company Limited(601857) Circulation Association today predicts that in the short and medium term (within one year), the international oil price will be high and volatile, and should change in the range of 90-120 US dollars / barrel. If the Russian Ukrainian crisis lasts more than half a year, the oil price may refresh the highest price in 2008. In the medium and long term (2-3 years), the oil price will gradually fall, and may fluctuate in the range of $80 ~ 110 / barrel. On the supply side, high oil prices may lead OPEC to release production capacity and the return of shale oil production in the United States; On the demand side, the inflation rate of more than 7.5% in the United States and Europe and the promotion of carbon neutralization may limit fossil energy consumption.