Offshore Oil Engineering Co., Ltd. operates as an engineering design, procurement, construction, and installation (EPCI) company primarily for the oil and natural gas industry in China and internationally. The company provides construction of offshore oil construction projects, marine engineering, chemical engineering, pressure pipeline, electrical and instrument automation products, special equipment for oil, gas and water treatment equipment, skid-mounted natural gas compressor units, deepwater subsea production systems and facilities, E&I products, technical, submarine pipeline maintenance, and other services for offshore oil underwater projects; oil-gas field development and repair services; and consulting services for deep-sea projects. It also engages in the construction, design, installation, repair, and maintenance of offshore oil-gas projects; contract, design, installation, repair, and relevant business of offshore oil and gas filed development engineering; and provision of EPCI and specialized contract, non-destructive and welding testing, and project contracting services. The company was founded in 2000 and is headquartered in Tianjin, China. Offshore Oil Engineering Co., Ltd. is a subsidiary of China National Offshore Oil Corporation.