China has increased its underground gas storage capacity by the most of any country since 2022, the International Gas Union (IGU) said in a new report on Monday. As of 2025, there are 699 underground natural gas storage facilities in operation worldwide, with a total working gas volume of 424 billion cubic metres (bcm), the IGU report found. That’s an increase of 10 bcm compared to 2022. “Of note is the fact that China added 6 bcm to its storage capacity, now ranking 6th globally,” the IGU said. The top ...