MPLX LP, incorporated in 2012 and headquartered in Findlay, Ohio, operates as a subsidiary of Marathon Petroleum Corporation, with MPLX GP LLC serving as its general partner. The company is a prominent owner and operator of midstream energy infrastructure and logistics assets primarily across the United States. Its business is segmented into Logistics and Storage, and Gathering and Processing. MPLX's extensive operations involve the gathering, processing, and transportation of natural gas, alongside the gathering, transportation, fractionation, exchange, storage, and marketing of natural gas liquids. It also handles the collection, storage, transportation, and distribution of crude oil, refined products, and other hydrocarbon-based goods, including the sale of residue gas and condensate. Furthermore, the company manages inland marine businesses, focusing on the transportation of light products, heavy oils, crude oil, renewable fuels, chemicals, and feedstocks within the Mid-Continent and Gulf Coast regions, utilizing its owned and third-party chartered boats and barges, and maintaining a marine repair facility on the Ohio River. Complementing these activities, MPLX oversees fuel distribution, refining logistics, terminals, rail facilities, and storage caverns, and operates specialized terminal facilities for the receipt, storage, blending, additization, handling, and redelivery of refined petroleum products through various modes including pipeline, rail, marine, and over-the-road transport.

MPLX LP (MPLX) Stock Price, Analysis & Trade Signals