Ownership and Control of Oil examines government decisions about how much control to exert over the petroleum industry, focusing on the role of National Oil Companies in the production of crude oil since the nationalizations in the 1970s. What are the motives for which some producing states opt for less and NOT more control of their oil production sector? When can International Oil Companies enter the upstream industry of producing states and under what conditions? The diversity of policy choices across producers provides the stage for this investigation: different theoretical explanations are confronted, with the empirical evidence, with the aim of finally proposing an interdisciplinary framework of analysis to explain who controls oil production around the world. This book is intended for both specialists and general readers who have an interest in the issue of government control of the petroleum industry. Due to its multidisciplinary approach, the book is aimed at a large academic public composed of scholars of Political Science, International Political Economy, Comparative Politics, and Middle East Area Studies. Moreover, this book should be relevant to international consultants, industry professionals and decision-makers in countries assessing their experience with existing control structures as well as the many countries in the process of joining the 'petroleum club' of oil producing nations.