This book presents many real field examples demonstrating the use of material balance and history matching to predict reservoir performance. For the first time, this edition uses Microsoft Excel with VBA as its calculation tool, making calculations far easier and more intuitive for today’s readers. Beginning with an introduction of key terms, detailed coverage of the material balance approach, and progressing through the principles of fluid flow, water influx, and advanced recovery techniques, this book will be an asset to students without prior exposure to petroleum engineering with this text updated to reflect modern industrial practice.