What do you mean by lower oil prices and higher oil prices?

A dollar increase in oil prices is called fine-tuning, and a drop of five points is called plunge.

20 19 May 18 According to the National Development and Reform Commission (NDRC), the price of gasoline and diesel in China is reduced by 75 yuan per ton. Since the beginning of the year, there have been nine oil price adjustments, including eight cyclical oil price adjustments (seven rises and one stranded). 1 time oil price decline adjustment due to the reduction of refined oil value-added tax.