Daqing, also known as the oil city, the city of a hundred lakes, is a prefecture-level city under the jurisdiction of Heilongjiang Province, located in the southwest of Heilongjiang Province, is the provincial sub-center city of Heilongjiang Province, the comprehensive strength ranked 11th in the country's prefecture-level cities, China's top 50 cities in terms of financial strength, the new second-tier cities. Daqing City is known as "the city of natural lakes, green oil and chemical capital", is approved by the State Council of China Service Outsourcing Demonstration City, the National Civilized City, the first batch of national safety development demonstration city pilot city, national garden city. Daqing is the location of China's largest oilfield and the world's tenth largest oilfield Daqing Oilfield; it is a famous industrial city with petroleum and petrochemical as the pillar industries. The industrial output value reaches the second place in Northeast China, and the per capita GDP reaches 20,000 dollars.