Chinese state-owned oil and gas giant China National Offshore Oil Corporation (CNOOC) has made what it says is a major oilfield discovery in the deep and ultra-deep South China Sea plays.

CNOOC Paleogene Enping Formation Wenchang Formation Chief Geologist Xu Changgui Zhou Xinhuai Production Before Beibu Gulf Corporation Huizhou Haiyangshiyou Completed Caofeidian Phase Asian