IEA (2011), Overseas Investments by Chinese National Oil Companies, IEA, Paris https://www.iea.org/reports/overseas-investments-by-chinese-national-oil-companies
This report examines inaccuracies in some commonly held views of the People's Republic of China’s National Oil Companies (NOCs). Until now, there has been little analysis to test the widely held presumption that these companies act under the instructions and in close co-ordination with the Chinese government. Nor have critics been challenged on the validity of their concerns about investments made by these NOCs, and how they could be blocking supplies of oil for other importing countries. IEA analysis, however, finds that contrary to these views, the NOCs actually operate with a high degree of independence from the Chinese government, and their investments have in fact largely boosted global supplies of oil and gas which other importers rely on.