Latest Breaking News On - Petrochina huabei oilfield company - Page 1 : comparemela.com

/PRNewswire/ Oil and gas are two of the most important natural resources, contributing to over half of the world s energy supply. Reserves of these.

Xiaolong wangRuifeng zhangPrnewswire oilPetrochina huabei oilfield companyBohai bay basinProfessor ruifeng zhangEarth science frontiers