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, such as asphalt; and sale of residue gas and condensate. Its pipeline network includes 13,000 miles of pipeline throughout the United States; storage caverns consist of butane, propane, and liquefied petroleum gas storage with a combined capacity of 4.7 million barrels located in Neal in West Virginia, Woodhaven in Michigan, Robinson in Illinois, and Jal in New Mexico, as well as marine business owns and operates 23 boats, 286 barges, and 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. Further, 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. Additionally, the company operates 62 terminal facilities for refined petroleum products with a combined total shell capacity of approximately 23.6 million barrels primarily located in the Midwest, Gulf Coast, and Southeast regions. MPLX GP LLC acts as the general partner of MPLX LP. The company was founded in 2012 and is headquartered in Findlay, Ohio. MPLX LP is a subsidiary of Marathon Petroleum Corporation.

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, such as asphalt; and sale of residue gas and condensate. Its pipeline network includes 13,000 miles of pipeline throughout the United States; storage caverns consist of butane, propane, and liquefied petroleum gas storage with a combined capacity of 4.7 million barrels located in Neal in West Virginia, Woodhaven in Michigan, Robinson in Illinois, and Jal in New Mexico, as well as marine business owns and operates 23 boats, 286 barges, and 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. Further, 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. Additionally, the company operates 62 terminal facilities for refined petroleum products with a combined total shell capacity of approximately 23.6 million barrels primarily located in the Midwest, Gulf Coast, and Southeast regions. MPLX GP LLC acts as the general partner of MPLX LP. The company was founded in 2012 and is headquartered in Findlay, Ohio. MPLX LP is a subsidiary of Marathon Petroleum Corporation.