中国石油大庆古龙页岩油 年产量突破百万吨

Group 1 - The core message is that the Daqing Oilfield in China has achieved a significant milestone in shale oil production, with annual output surpassing one million tons after five years of concentrated exploration and development [3]. Group 2 - The Daqing Oilfield's success in shale oil extraction demonstrates the potential for large-scale and efficient production in the sector [3]. - The achievement marks a significant step in the development of the Daqing Gulong shale oil national demonstration area [3].