提前加油，明晚油价或将上涨

Group 1 - The core point of the article is that the last oil price adjustment before the National Day holiday is set to occur on September 23, with an expected increase in oil prices [1] - In September, there were two oil price adjustments, with the first adjustment resulting in a halt to price increases, while the second adjustment is expected to shift from a decrease to an increase [1] - The anticipated increase in oil prices is approximately 40 yuan per ton, nearing the adjustment threshold of 50 yuan per ton [1]