China's largest oil tanker, with vessel displacement 7 times that of the country's only aircraft carrier "Liaoning", was delivered Wednesday in south China's Guangzhou City.

The 333-meter tanker "Kaigui" was built by Guangzhou Shipyard International Co. Ltd. for the China Merchants Energy Shipping Co. Ltd., which is China's largest offshore oil shipping firm.

The vessel, with a dead weight of 320,000 tonnes, can circle the equator without refueling. It can accommodate helicopter take-off and landing and is equipped with automatic control system, which can enable unmanned navigation.