Few people in Beihua go to PetroChina and Sinopec, but most of them go to downstream refining and chemical enterprises, and the places are better.
If you want to go to graduate school, chemical industry is better in the north, and oil, of course, there is no oil in the north.
In addition, Beihua University has some terrible majors, and there is a big gap between them. Don't take those majors.