Andrej Pustisek studied Geophysics and Economy and holds a PhD in Geophysics from the University of Vienna, Austria and a PhD in Economy from the University of Münster.
Working for Wintershall AG, Germany and then WINGAS in the 1990s he had responsibilities in international natural gas purchasing, transportation, storage and optimization. After changing to E.ON Ruhrgas in 2002 he led as Senior Vice President International Natural Gas Sales and then, from 2008 to 2011 Portfolio Management. In this function he also headed the E.ON team during the January 2009 supply interruption (“Ukrainian crisis”). He currently consults international natural gas and energy companies, conducts international courses on natural gas for HOT Engineering, Leoben and teaches energy economics at the University of Applied Science, Stuttgart and at the University of Karlsruhe.