MS. RANDI MARTINSEN is a certified petroleum geologist with 40 years of experience (domestic and international) working in industry, consulting and teaching. She holds a B.S. in Earth and Space Science from Stony Brook University, NY and an MS in Geology from Northern Arizona University, Flagstaff. She started her career with Cities Service Company, Denver, CO., and subsequently, became a consultant. She has also been a Lecturer in Geology and Geophysics at the University of Wyoming (UW) for 35 years and has taught courses in petroleum geology and engineering, clastic depositional systems, sequence stratigraphy, reservoir characterization, field geology and physical geology. Her research focuses on developing and improving geologic models useful for exploration and production from stratigraphic traps and she has numerous publications in this area. Currently, she is transitioning to retiring from UW so as to be able to commit more time to her newly formed company, Hydrocarbon InSight, LLC. She is also currently the President of the American Association of Petroleum Geologists (AAPG).