Northeast Petroleum Bureau, of course! There are Daqing Oilfield, Liaohe Oilfield and Shengli Oilfield in the northeast, and these oilfields are very promising. Zhongyuan Oilfield is out of oil now, and it mainly relies on external projects to make money, that is, it is particularly hard to go to Sudan, Arabia and other Middle Eastern countries to help them extract oil. Moreover, the wages in Zhongyuan Oilfield are the lowest among all oilfields. It is no longer competitive.

Don't ask me why I am so clear, because I am from Zhongyuan Oilfield, and it is actually quite uncomfortable to watch him gradually decline.