MPLX LP owns and operates midstream energy infrastructure and logistics assets primarily in the United States. It operates in two segments, Logistics and Storage, and Gathering and Processing. The company is involved in the gathering, processing, and transportation of natural gas; gathering, transportation, fractionation, exchange, storage, and marketing of natural gas liquids; transportation, storage, distribution, and marketing of crude oil and refined petroleum products, as well as other hydrocarbon-based products; and sale of residue gas and condensate. Its pipeline network located throughout the United States and Alaska; storage caverns consist of butane, propane, and liquefied petroleum gas storage with locations in Neal in West Virginia, Woodhaven in Michigan, Robinson in Illinois, and Jal in New Mexico; and marine business owns and operates boats and barges, including third-party chartered equipment, as well as a marine repair facility located on the Ohio River. The company also transports light products, heavy oils, crude oil, renewable fuels, chemicals, and feedstocks in the Mid-Continent and Gulf Coast regions. In addition, its refining logistics assets operates 619 tanks with a storage capacity of approximately 56 million barrels; and 32 rail and truck racks, 18 docks, and gasoline blenders. Further, the company operates terminal facilities for the receipt, storage, blending, adultization, handling, and redelivery of refined petroleum products located throughout the continental United States and Alaska. MPLX GP LLC acts as the general partner of MPLX LP. The company was incorporated in 2012 and is based in Findlay, Ohio. MPLX LP operates as a subsidiary of Marathon Petroleum Corporation.