1, 1 monthly oil price adjustment time: 1 at 24: 00 on March 3rd, 1 month1at 24: 00 on July 7th.

2. Adjustment time of oil price in February: 24: 00 on February 3 and 24: 00 on February 17.

3. Time for oil price adjustment in March: 24: 00 on March 3, 24: 00 on March 17 and 24: 00 on March 3 1 day.

4. April oil price adjustment time: 24: 00 on April 17 and 24: 00 on April 28.

5. Oil price adjustment time in May: 24: 00 on May 16 and 24: 00 on May 30.

6. Oil price adjustment time in June: 24: 00 on June 13 and 24: 00 on June 28.

7. July oil price adjustment time: 24: 00 on July 12 and 24: 00 on July 26.

8. Adjustment time of oil price in August: 24: 00 on August 9 and 24: 00 on August 23.

9. Adjustment time of oil price in September: 24: 00 on September 6 and 24: 00 on September 20.

10, 10 oil price adjustment time: 10/0 at 24 o'clock, 10 at 24 o'clock on October 24.

1 1, 1 1 monthly oil price adjustment time:1/kloc-0 at 24: 00 on July 7th,1/February 2nd/kloc-0 at 24: 00 on the day.

12,1February oil price adjustment time:124: 00 on February 5th,1February/24: 00 on February 9th.

Reasons for the sharp increase in domestic oil prices

1, international oil price rise: China's oil price is in line with international oil prices, so the rise and fall of international crude oil prices will also affect domestic oil prices.

2. Affected by the national macro-economy: the economic growth of China, the United States, Germany, France and other major countries in the world will affect the international oil price. When the economy is prosperous, the demand will increase, and the oil price will also rise. If the economy is depressed, the demand will weaken, and the oil price will fall.

3. Crude oil output: If the national crude oil output increases substantially, the international oil price will fall. At present, the domestic oil price is high because of China's high dependence on imports.