The two firms are also collaborating on China’s largest offshore oil field, Bohai Penglai 19-3.
In a statement CNOOC said, “With four years development, this oil field with an annual capacity of 2 million tons of oil was set up on western shore of Bohai Bay.”
“After the trial production on July 18, 11-1-A5H oil well of Caofeidian can produce hundreds of million barrels of oil each day currently, which breaks record,” it added.