135,000 square meters. According to the official website of Dagang Oilfield, the central square of Dagang Oilfield covers an area of ??135,000 square meters. It is an all-in-one leisure and entertainment area integrating fitness, leisure, entertainment, viewing and other functions. The central square not only has a large venue for square dancing, but also a fitness track. It has been a place for fitness and entertainment for generations of petroleum people.