MPLX LP engages in the operation of midstream energy infrastructure and logistics assets, and distribution fuels services. It operates through the Logistics and Storage (L&S) and Gathering and Processing (G&P) segments. The Logistics and Storage segment transports, stores, distributes, and markets crude oil, asphalt, refined petroleum products, and water. The Gathering and Processing segment gathers, processes, and transports natural gas, and gathers, transports, fractionates, stores, and markets natural gas liquids (NGLs). The company was founded on March 27, 2012 and is headquartered in Findlay, OH.