Dr. Al-Marhoun is the founder and managing director of Reservoir Technologies. He is also an adjunct professor and former chairman of the Petroleum Engineering Department at King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia. He holds a BS in General Engineering and an MS in Mathematics from King Fahd University of Petroleum & Minerals, and a PhD in petroleum engineering from Oklahoma University, Norman, OK., U. S. A.Dr. Al-Marhoun served as a Distinguished Lecturer for the 2001-2002 SPE Distinguished Lecturer Program. He is the 2005 recipient of the SPE Distinguished Achievement Award for Petroleum Engineering Faculty.Dr. Al-Marhoun research interests include fluid properties and reservoir engineering. He has authored more than sixty technical papers. He has developed several PVT correlations and artificial neural network models, which are becoming more popular in the industry due to their generality and accuracy. He is a member of the Society of Petroleum Engineers.