Chinese Big Oil is influencing the country’s foreign policy, especially when it comes to supporting Sudan’s military. From the Financial Times :
Overseas investment by Chinese companies in countries such as Sudan has damaged and in some cases “hijacked” Beijing’s foreign policy, diplomatic scholars in the capital have said.
In interviews, scholars at leading Chinese think-tanks and universities in Beijing singled out the conduct of state-owned China National Petroleum Corp, or PetroChina, in Sudan.
Zhu Feng, at Peking University’s Centre for International and Strategic Studies, said the likes of PetroChina , though state-owned, had sometimes pursued profit at the expense of the broader national interest.
See also: Big Chinese Oil Firms Squeezed By High Crude Costs from Forbes.