What are the responsibility of oil companies in resource rich countries? Do they take these responsibilities? Based on a utilitarian perspective and theories of the resource curse, we discuss the oil companies' corporate social responsibility (CSR) when a resource rich country such as Angola lacks accountable public institutions. We also analyse the type of responsibility oil companies take and factors driving corporate social responsibility. From undertaking a survey among oil service firms operating in Angola, we have found that, in practice, policy on the corporate social responsibility of oil companies is mainly driven by economic incentives (it is good for business), rather than by ethical considerations.