MPLX LP (NYSE: MPLX) is a midstream master limited partnership that owns, operates and develops energy infrastructure primarily across the United States. The company provides a range of midstream services including the gathering, transportation, storage and distribution of crude oil, refined petroleum products, natural gas and natural gas liquids (NGLs). MPLX also operates processing and fractionation facilities and supplies logistics services that connect producers, refiners and end-use markets.
The partnership’s asset base includes pipelines, storage terminals, rail and marine facilities, natural gas processing plants and NGL fractionators. MPLX serves both captive customers and third parties under a mix of fee-based and commodity-linked arrangements, providing crude and refined product terminals, NGL handling and fractionation, and connectivity between production basins and downstream demand centers. Its operations are geared toward integrated midstream solutions that support the movement and value-add processing of hydrocarbon streams from wellhead to market.
MPLX was formed by Marathon Petroleum in 2012 to consolidate and expand midstream capabilities and has grown through strategic acquisitions and organic development, including the 2015 purchase of MarkWest Energy Partners which expanded its NGL processing and fractionation footprint. The partnership’s operations span many of North America’s major producing regions and refining centers, with concentrations in the Northeast, Midwest, Gulf Coast and key shale basins. MPLX maintains commercial relationships across the energy value chain while continuing to develop infrastructure to support production and refined product flows.
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