This course introduces the concept of upstream, midstream and downstream activities of the oil and gas industry. By the end of this course, readers should be able to identify and describe the main branches of petroleum exploration and exploitation activities such as geology, drilling, reservoir engineering and production. Readers should also be able to explain the stages and process of hydrocarbon formation, how it is found and later produced. To complete the understanding of the oil and gas life cycle, the midstream and downstream aspects of the oil and gas industry such as, topsides facilities, refinery operations, gas processing, product transportation as well as economy aspects and  current issues affecting the industry will also be covered.