Offshore Oil Engineering Co., Ltd. is a listed company controlled by China National Offshore Oil Corporation. It is the only large EPCI (Engineering, Procurement, Construction and Installation) contractor in China with capacities to undertake the design, procurement, construction, offshore installation, commissioning and maintenance of offshore oil and gas development projects, as well as the liquefied natural gas, offshore wind farm, refining and chemical projects, etc. It is also one of the largest and the most competitive EPCI contractors of offshore oil and gas projects in the Asia-Pacific region.