Petroleum engineering is a prominent field that is concerned with the exploration and production of fuels like crude oil, natural gas and other related products. It is an interdisciplinary field that integrates concepts and applications of mineralogy, geology and other disciplines of engineering. The book elucidates various aspects of petroleum operations, petroleum geology and production engineering. The researches and case-studies compiled in this book are meant to provide an overview of the current practices and technological advancements in petroleum engineering across the globe. This book also aims to highlight some of the major impacts of petroleum engineering and mining on the environment. It will be helpful for students and researchers alike.