Dr. Tarek Ahmed - consulting firm that specializes in in-house petroleum engineering courses and consulting services worldwide. Prior to that, he was a Reservoir Engineering Advisor for Anadarko, Baker Hughes, and Gaffney, Cline and Associates and was a Professor and head of the Petroleum Engineering Department at Montana Tech of the University of Montana for 22 years. Dr. Ahmed has authored numerous papers and several successful books with Elsevier, including Advanced Reservoir Management and Engineering, 2nd Edition.