Board of Directors

Stephen P. Mawer

Stephen Mawer has served as chief executive officer of our general partner since April 2020 and joined our Board of Directors in early 2016.  He brings nearly three decades of industry experience, which includes serving as president of Koch Supply & Trading and as a senior member of Koch Industries management team.  Mr. Mawer brings extensive knowledge of petroleum markets, refining operations and economics, supply/marketing optimization and risk management. Mr. Mawer sits on the Board of Directors at both ClimeCo Corporation and Zenith Energy and serves as a member of the advisory board of Heritage Environmental Services. Mr. Mawer holds both a B.S. and M.S. in chemical engineering from the University of Cambridge, England.