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CNPC said it will start injecting gas into its 23 underground gas storage facilities
CNPC had supplied a record 7.4 billion cubic metres of natural gas last winter from the underground storages, a 21 percent jump from the previous year, as demand surged due to the government's massive gasification push
CNPC plans to supply 700 million cubic metres more this winter out of the storages than last winter, the company added.