MPC and MPLX Enter into New $7.5 Billion Revolving Credit Agreements

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These new agreements replace their previous credit agreements from 2022. The new MPC Credit Agreement provides for a revolving credit facility that matures on April 7, 2031, with options to increase commitments and extend the maturity date. The new MPLX Credit Agreement also matures on April 7, 2031, with similar options. Both agreements include customary covenants and events of default. As of March 31, 2026, MPC had $2.2 billion of cash and cash equivalents, and MPLX had $1.5 billion.

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About Marathon Petroleum Corp.

Marathon Petroleum Corp. is a leading integrated downstream energy company within the United States. Its primary function is to refine crude oil and distribute petroleum products, playing a pivotal role in the energy sector. Marathon Petroleum operates one of the largest refining systems in the nation, with refineries strategically located across the country, providing widespread access to key markets. The company is known for producing a variety of petroleum products, including gasoline, diesel, aviation fuels, and petrochemicals, which are essential to various sectors such as transportation, industrial, and residential markets. Marathon Petrol's comprehensive logistics network, including pipelines, terminals, and marine fleets, supports its extensive distribution capabilities. Moreover, its retail operations through the Speedway brand further enhance its market presence. Marathon Petroleum Corp. is significant in the energy market, contributing to the stability and efficiency of fuel supply and consumption patterns, thus impacting both local and national economic landscapes.