The logo of CNPC (China National Petroleum Corporation) is pictured at the 26th World Gas Conference in Paris, France, June 2, 2015. REUTERS/Benoit Tessier/File Photo

The logo of CNPC (China National Petroleum Corporation) is pictured at the 26th World Gas Conference in Paris, France, June 2, 2015. REUTERS/Benoit Tessier/File Photo

The logo of CNPC (China National Petroleum Corporation) is pictured at the 26th World Gas Conference in Paris, France, June 2, 2015. REUTERS/Benoit Tessier/File Photo

September 6, 2016 3:06 AM (UTC+8)