Kunlun Petroleum is a private oil enterprise in Shaanxi Province, and PetroChina is an important state-owned backbone enterprise. Kunlun Petroleum was established in 1999, and PetroChina was established in 1998+02 in July. From the perspective of business coverage, Kunlun Petroleum is mainly engaged in wholesale, retail, transportation and chain operation. China Petroleum is mainly engaged in paint business, petroleum engineering construction, financial services, new energy development and other fields.