According to the dow Jones Beijing June 20 news, national bureau the latest figures show that the first five months of this year to areas of north China production 18.63 million tons of crude oil, up 10.96%, a sharp increase growth continued to the top one in China. The data shows, the output of crude oil in north China a year-on-year growth came mainly from tianjin, this year 1-5 month cumulative production 14.11 million tons of crude oil in tianjin, year-on-year growth of 15.55%, the main benefit from cnooc bohai bay region in the crude oil output growth.