William C. Rusnack

William C.
Rusnack is currently a Director at Lyondell Chemical Co., a Director at Sequoia Sciences, Inc., an Independent Director at Sequoia Vaccines, Inc., a Member at American Petroleum Institute, Inc., and a Member-National Council at Olin Business School.
He previously served as President & Chief Executive Officer at The Premcor Refining Group, Inc., President, Chief Executive Officer & Director at Premcor, Inc., Non-Executive Chairman at Flowserve Corp., Independent Director at Solutia, Inc., Lead Independent Director at Sempra, Independent Director at Peabody Energy Corp., Treasurer & Director at St. Louis Arch Angels, Senior Vice President at Atlantic Richfield Co., Inc., President at Premcor USA, Inc., President at ARCO Products Co., and President & Vice President-Corporate Planning at ARCO Transportation Co. Rusnack received his undergraduate degree from Indiana University of Pennsylvania and his MBA from The University of Chicago.