CNOOC Adds Massive Gas Reserves in South China Sea Discovery

27, Mar. 2025

China's authorities have approved the proved gas in-place volumes of over 100 billion cubic meters in a new discovery in the western part of the South China Sea, which is the world’s first large ultra-shallow gas play in ultra-deepwater, state oil and gas giant CNOOC said on Wednesday.

 

China's authorities have approved the proved gas in-place volumes of over 100 billion cubic meters in a new discovery in the western part of the South China Sea, which is the world’s first large ultra-shallow gas play in ultra-deepwater, state oil and gas giant CNOOC said on Wednesday.

The proved gas in place at the Lingshui 36-1 gas field, which stands at over 100 billion cubic meters, is now made official after the Chinese governmental authorities approved it, two months after the company announced the major exploration breakthrough in ultra-shallow gas play in ultra-deepwater South China Sea.

The Lingshui 36-1 gas field is located in the western South China Sea, with an average water depth of approximately 1,500 meters (4,921 ft). The main gas-bearing play is the Ledong Formation of Quaternary, with an average burial depth of 210 meters (689 ft). The field has been tested to produce over 10 million cubic meters per day of open-flow natural gas, CNOOC says.