MPLX MPLX

EnergyMarket cap $38B1 connection

MPLX is Marathon Petroleum's midstream MLP, owning 9,000+ miles of crude oil and refined products pipelines and 50+ product terminals. Marathon's refinery system depends on MPLX's infrastructure to move crude in and products out. MPLX's fee-based revenues provide stable cash flows uncorrelated to oil price movements.

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Owned by 1

Companies with a stake in MPLX

Marathon PetroleumEnergy · $60BMarathon Petroleum owns and controls MPLXsince 2012

Other Energy companies

Saudi Aramco ExxonMobil Chevron Shell plc NextEra Energy ConocoPhillips TotalEnergies BP plc Duke Energy Constellation Energy

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Relationships are compiled by VexMap from company filings, announcements and reporting, and last reviewed September 2026. Spotted something wrong? Tell us. Not investment advice.