A photographic portrait of John Hartung

John W. Hartung

EY Global Oil & Gas Strategy and Transactions Leader and Energy Market Leader, EY-Parthenon

Ace consultant across the energy value chain industry. An expert in servicing clients with in-depth industry knowledge.

As EY Global Oil & Gas Strategy and Transactions Leader and Energy Market Leader, EY-Parthenon, John has served clients including major oil companies, national oil companies and private equity.

With more than 28 years of experience, John has consulted across the energy value chain on a range of strategy and operations topics. During his time in the industry, he managed the downstream value chain, including refining, pipeline and marine logistics as well as supply and trading activities.

Prior to joining EY-Parthenon, John was the Partner and Managing Director at an American multinational management consulting firm.

John earned an MBA from The University of Texas at Austin ─ Red McCombs School of Business.

How is John building a better working world 

John believes in building a better working world by investing time helping a number of local charities in the Houston area. He is also committed to developing people both at work and in his private life.

Contact John