HOME ABOUT MPLX INVESTORS MARATHON PIPE LINE MARKWEST TARIFFS CONTACT US MPLX > About MPLX ABOUT MPLX Logistics and Storage Gathering and Processing Sustainability Board of Directors Officers MPLX Fact Sheet Image Gallery Terms of Use Privacy Policy About MPLX MPLX is a diversified, growth-oriented master limited partnership formed in 2012 by MPC to own, operate, develop and acquire midstream energy infrastructure assets. We are engaged in the gathering, processing and transportation of natural gas; the gathering, transportation, fractionation, storage and marketing of NGLs; the transportation, storage and distribution of crude oil and refined petroleum products; as well as refining logistics and fuels distribution services. MPLX provides services in the midstream sector across the hydrocarbon value chain through our Logistics and Storage and Gathering and Processing segments. © 2018 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