Mathias Carlsen is General Manager for Americas at Whitson, a company that develops an all-in-one, web-based, petroleum engineering platform named Whitson+. After earning his MSc Carlsen joined Whitson and has been a key developer, conceptual driver, and product manager of Whitson+ for unconventional reservoir model management. Through Whitson, Carlsen has also supervised and consulted on projects for more than 50 E&P companies. In addition, he researches and teaches industry courses on well performance, advanced pressure, volume, and temperature (PVT) studies, phase behavior, and gas-based enhanced oil recovery. Carlsen holds an MSc degree in Petroleum Engineering from the Norwegian University of Science and Technology and was a Fullbright Scholar at Stanford University.