This book provides a comprehensive guide to risk analysis for exploration portfolio development in the petroleum industry. From the prospect of resource discovery to the evaluation of exploration activities, the author offers practical methods and tools for risk assessment and decision-making. Examples and case studies are presented throughout the book to illustrate the application of these techniques. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.