The Daqing Oil Field, formerly romanized as "Taching", is the largest oil field in the People's Republic of China, located between the Songhua river and Nen River in Heilongjiang province. When the Chinese government began to use pinyin for romanization, the field's name became known as Daqing.

Heilongjiang is a province in northeast China. It is the northernmost and easternmost province of the country and contains China's northernmost point and easternmost point.