The first book on quantified risk assessment (QRA) as applied to offshore installations and operations. Risk assessment techniques have long been used in the offshore oil and gas industry, and their use is set to expand as the industry moves into new areas and faces new challenges in older regions. This updated and expanded 2nd edition results from a R&D programme on offshore risk assessment in Norway (2002-2006). It describes the state of the art in QRA and identifies weaknesses and areas that need development. Includes chapters on: risk analysis methodology; analytical approaches to escalation, escape, evacuation; rescue analysis of safety and emergency systems; the main hazards of offshore structures; risk mitigation and control; an alternative approach to risk modelling focussing on the risk of short-duration activities. A reference for academics and students in this field, the book will also interest professionals: contractors, suppliers, consultants and regulatory authorities.