MPLX LP

MPLX LP operates midstream energy infrastructure across the United States, providing gathering, processing, transportation, and storage services for crude oil, natural gas, natural gas liquids (NGLs), and refined products. The company also runs inland marine transportation operations, terminal facilities, and logistics networks serving the energy sector. As a master limited partnership, MPLX is a subsidiary of Marathon Petroleum Corporation and is headquartered in Findlay, Ohio.

The company's revenue is derived from two primary segments. The Crude Oil and Products Logistics segment encompasses crude oil gathering, storage, and transportation; refined product distribution through pipelines, rail, and marine vessels; and terminal operations for blending and handling petroleum products. The Natural Gas and NGL Services segment includes natural gas gathering and processing, NGL fractionation and marketing, and condensate handling. Additionally, MPLX operates an inland marine fleet of boats and barges serving the Mid-Continent and Gulf Coast regions, along with a marine repair facility on the Ohio River.

MPLX maintains significant scale within the midstream sector, with an extensive network of pipeline infrastructure, storage facilities, and logistics assets distributed across major U.S. energy producing and refining regions. The company's operations span from production areas in the onshore basins to major refining hubs and demand centers, positioning it as a critical link in the energy supply chain for both traditional and renewable fuel products.