China’s state-run CNOOC Ltd has spudded an exploration well between the Weizhou 6/12 North and South fields on Block 22/12 in the South China Sea.

The WZ 6/12 M1 exploration well, in China’s Beibu Gulf, is targeting the T40 to T42 stacked reservoirs and will evaluate the structure, sand and oil column thickness in the undeveloped WZ 6/12 Mid prospect.