The growth of the petroleum industry is a veritable source of energy and its centrality to the economies of oil producing states. However, oil producing states faced with the challenge of increasing oil production do not possess the requisite capital but depend on the relatively scarce private capital. This book is the first 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 effectiveness of the laws and policies in driving investment in petroleum development. Also, it discusses the impediments to attracting and sustaining petroleum investment, and the mechanisms for settlement of petroleum investment disputes. In addition, the book shows the implications of the concepts 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 very enriching and stimulating.