China Oil and Gas Pipeline Network Corp (PipeChina) said that the Horgos compressor station, the first station of the second and third pipelines of China's west-to-east gas transmission project, has delivered a cumulative total of more than 600 billion cubic meters (bcm) of natural gas, providing a guarantee for the stable supply of China's domestic natural gas market and the low-carbon transformation of its energy structure, CCTV News reported over the weekend.