Petrochina reports big shale gas additions in Sichuan basin
Petrochina said on Sunday that certified, newly added proven shale gas geological reserves at Changning-Weiyuan and Taiyang blocks in the Sichuan basin totaled 740.97 billion cubic metres. China’s state-run energy producers are raising spending on domestic oil and gas drilling to a multi-year high this year, answering Beijing’s call to boost energy supply security as…