Guardian: Chinas offshore oil drilling firm and the countrys largest oil producer with $98.53bn in revenue in 2014, China National Offshore Oil Corp (CNOOC) inevitably disturbs marine life as it probes seabeds around the world for resources. Like other big oil firms, the company has caused its share of environmental disasters, including a 2011 oil spill that contaminated 840 sq km (324 sq miles) of Bohai Bay, off Chinas northeastern shore. CNOOC got in trouble with government regulators for initially concealing...