Petroleum engineer can spend a whole lot of time to build a model and performing reservoir simulation study. His ultimate objective is to devise efficient strategies to develop, manage, and operate the field. For many petroleum fields, attainment of these objectives can be very difficult due to uncertainties. Yet, the project must be advanced in spite of uncertainties but a great care is needed to integrate uncertainties in decision making. This book presents a case study to demonstrate development of static model using log data.