China's shift to a net oil importer has generated much speculation outside China about how China's growing dependence on foreign oil will affect its international behaviour. This discussion is framed by two competing models of China's future approach to energy security: one that foresees deeper integration into global energy markets and another that predicts efforts to minimize reliance on these markets in potentially destabilizing ways. Less attention has been paid, however, to the parallel debate unfolding inside China over how to ensure the country's oil needs are met without undermining national security. This article introduces the main participants in the debate, how the debate relates to energy security decision-making, and some of the measures to enhance energy security under consideration. It concludes with a discussion of some of the factors that will shape China's emerging approach to energy security.