HOME ABOUT MPLX INVESTORS MARATHON PIPE LINE MARKWEST TARIFFS CONTACT US MPLX > About MPLX > Board of Directors ABOUT MPLX Logistics and Storage Gathering and Processing Sustainability Board of Directors Michael J. Hennigan Pamela K.M. Beall Christopher A. Helms Maryann T. Mannen Garry L. Peiffer Dan D. Sandman Frank M. Semple J. Michael Stice John P. Surma Donald C. Templin Officers MPLX Fact Sheet Image Gallery Terms of Use Privacy Policy Board of Directors Michael J. Hennigan Chairman, President and Chief Executive Officer MPLX GP LLC Pamela K.M. Beall Executive Vice President MPLX GP LLC Christopher A. Helms President and Chief Executive Officer US Shale Management Company Maryann T. Mannen Executive Vice President and Chief Financial Officer Marathon Petroleum Corporation Garry L. Peiffer Retired President MPLX GP LLC Dan D. Sandman Retired Vice Chairman and Chief Legal and Administrative Officer United States Steel Corporation Frank M. Semple Retired Chairman, President and Chief Executive Officer MarkWest Energy Partners, L.P. J. Michael Stice Dean, Mewbourne College of Earth & Energy University of Oklahoma John P. Surma Non-Executive Chairman Marathon Petroleum Corporation Donald C. Templin Retired Executive Vice President Marathon Petroleum Corporation For more information, please see Board Committees © 2021 MPLX LP MPLX Marathon Petroleum Corporation About MPLX Logistics and Storage Gathering and Processing Sustainability Board of Directors Officers MPLX Fact Sheet Image Gallery Terms of Use Privacy Policy Investors Corporate Governance Calendar of Events SEC Filings Press Releases Earnings Capsule Quarterly Investor Packet Stock Information Annual Report & 10-K Sustainability Reporting Unitholder Services Events and Presentations Investor FAQs Tax Reporting Package Email Alerts Contact Us Investor Relations Unitholder Services Corporate Public Affairs MPC Supply Chain Customer Portal MarkWest Visit the MarkWest site Pipeline Launcher/Receiver Emission Reduction Systems Marathon Pipe Line For Operation, Environmental and Safety Info: Marathon Pipe Line LLC