Daqing

The oil and gas from the giant Daqing oil field are being produced from a broad anticlinal structure in continental Cretaceous formations with minor undulations covering an area of up to 30 km in width and 50 to 60 km in length, trending north northeast.⁶¹ This structure is located in the northern part of the Songliao basin, about 160 km northwest of Haerbin in Heilongjiang province.