550 points. According to the inquiry of official website of Chengde Petroleum College, the minimum score line of the school in 2023 is 550. Chengde Petroleum College refers to Hebei Petroleum Vocational and Technical University. Hebei Petroleum Vocational and Technical College, located in Chengde City, Hebei Province, is a public undergraduate vocational university funded by the central and local governments and mainly managed by the people's government of Hebei Province.