China has started its first deep water oil drilling operation near a highly disputed area of the South China Sea.
The Philippines, Vietnam and others are closely watching as they also lay claim to the resource rich area.
The waters where this well is starting operation are not under dispute, but just south east of it is a shoal that is currently the scene of a stalemate with the Philippines navy.
Al Jazeera's Rob McBride reports from Hong Kong.
Source: Al Jazeera