The increasing demand for oil presents oil producing states with the challenge of increasing output in the light of paucity of the enormous capital needed for such productive enterprise. The scenario impels the urgency of establishing an investment regime which guarantees investors fair returns on investments. This book is an attempt at a comprehensive and comparative analysis of the plethora of laws and policies which govern investment in petroleum development in Nigeria. It examines the impediments to attracting and sustaining petroleum investment, and the mechanisms for resolving petroleum investment disputes. Furthermore, it discusses the implications of the concepts of Corporate Social Responsibility, Sustainable Development and Extractive Industries Transparency Initiative for petroleum investments. This book will serve as a useful companion to policy makers and petroleum industry operators. Also, law students, academics, researchers and lawyers will find it an invaluable resource material.