One of the key goals of this legal treatise is to undertake a painstaking textual anatomy of the Oil Pollution Act of 1990 to help academics, lawyers, judges, and students navigate its recondite provisions with relative ease. This treatise consists of eighteen chapters. Chapter one discusses the scope of the Oil Pollution Act 1990. Chapter two analyzes the defenses to liability. Chapter three examines the procedures for asserting claims against a responsible party. Chapter four explores removal costs under OPA. Chapters five, six and seven dwell on issues relating to damages, recovery of interest, and limitation of liability respectively. Chapters eight and nine of this treatise focus on the effect of the Oil Pollution Act of 1990 on the insurance structure for oil pollution in US and international waters. The two chapters briefly discuss the financial responsibility requirements and the international oil pollution regimes as they relate to marine insurance. Chapter ten discusses contribution, indemnity and third part liability. Chapters eleven, twelve and thirteen examine the National Pollution Funds Center's Oil spill liability Trust funds, recovery by foreign claimants, as well as jurisdictional and procedural issues respectively. Chapters fourteen, fifteen, and sixteen comprehensively analyze the non-preemption clause, as well as the interaction between OPA and its predecessor statutes dealing with oil and other pollutants, as well as time limitations respectively.The overall analysis undertaken in this treatise would be helpful to governments at all levels (domestic & foreign), and also to the maritime & transportation, environmental, oil & gas, energy, insurance, banking & financial services, real estate, and hospitality industries. This treatise attempts an extensive textual analysis of the compensation and liability sub-chapter of the Oil Pollution Act of 1990 (OPA).This treatise also includes an extensive analysis of OPA jurisprudence and non-OPA jurisprudence construing pre-OPA statutes regulating oil and hazardous substance pollution. Its comprehensive analysis of non-OPA jurisprudence would provide guidance to academics, lawyers, judges, students and several business industries in their bid to construe the intricate provisions of the Oil Pollution Act of 1990.