Subsidiary Officers

Anthony R. Kenney
President—Speedway SuperAmerica LLC

Steve D. L. Reynish
President—Marathon Oil Canada Corporation

Annell R. Bay
Senior Vice President—Exploration

Clifford C. Cook
Senior Vice President—Supply, Distribution and Planning

Garry L. Peiffer
Senior Vice President—Finance and Commercial Services

Mary Ellen Peters
Senior Vice President—Marketing

J. Douglas Sparkman
Senior Vice President—Transportation and Logistics

Jerry C. Welch
Senior Vice President—Refining

Pamela K. M. Beall
Vice President—Global Procurement  

Linda A. Capuano
Vice President—Emerging Technology 

Robert E. Estill
Vice President—Strategic Planning and Portfolio Management

Patrick J. Kuntz
Vice President—Natural Gas and Crude Oil Sales

Randy K. Lohoff
Vice President—Corporate Responsibility

Rodney P. Nichols
Vice President—Human Resources and Administrative Services

Michael A. Peak
Vice President—Risk Management and Trading

Timothy N. Tipton
Vice President—Technology Services

J. Michael Wilder
General Counsel and Secretary