China National Petroleum Corporation (CNPC) announced on Tuesday that its Daji gas field, China's first successfully developed deep coal-measure gas field, has achieved cumulative production of over 3 billion cubic meters.

As one of the country's first national coalbed methane demonstration projects, the field is located on the eastern edge of the Ordos Basin, and saw its 2024 output surge to 1.69 billion cubic meters, marking a 79.2 percent year-on-year increase, it said.

Coal-measure gas is a new type of unconventional natural resource that is widely distributed across coal-rich basins such as Ordos Basin, Sichuan Basin, and Junggar Basin, with estimated reserves exceeding 40 trillion cubic meters.