Also known as:
Ashland (merged), Andeavor (merged), Western (merged)
Ashland (merged), Andeavor (merged), Western (merged)
Also known as:
Marathon is a a large independent refining company with operations primarily in the US.
Marathon was formed by the separation of the downstream business from Marathon Oil (now an independent upstream company).
Marathon built its refinery portfolio through organic investment (under Marathon Oil), individual asset acquisitions, and mergers with Ashland Oil (1998) and Andeavor (2018).
Marathon's refinery portfolio is entirely in the US, where it has a strong presence in most of the regional markets. Traditionally it has been one of the major players in the Midwest, where it has an extensive refining portfolio that is highly integrated with product pipelines and fuel retail.
Marathon has a large portfolio of refineries, all located in the United States.
Anacortes - 125 kbpd Marathon
Canton - 125 kbpd Marathon
Los Angeles - 382 kbpd Marathon
Catlettsburg - 306 kbpd Marathon
Detroit - 147 kbpd Marathon
El Paso - 140 kbpd Marathon
Galveston Bay - 625 kbpd Marathon
Garyville - 608 kbpd Marathon
Kenai - 72 kbpd Marathon
Mandan - 75 kbpd Marathon
Robinson - 266 kbpd Marathon
Salt Lake City - 67 kbpd Marathon
St Paul Park - 108 kbpd Marathon
1911 - Ohio Company formed at the breakup of Standard Oil
1924 - Ohio Company acquired Robinson refinery from Lincoln Oil
1924 - Ashland acquired Catlettsburg refinery from Great Eastern
1948 - Ashland acquired Canton refinery from Allegheny Arrow
1948 - Ashland acquired St. Elmo, Illinois, refinery from Allied Oil
1948 - Ohio Company sold Lovell, Wyoming, refinery to Big Horn
1948 - Ashland acquired Louisville, Kentucky, refinery from Aetna Oil
1948 - Ashland acquired Niles, Ohio, refinery from West Reserve
1949 - Ashland acquired Freedom Town, Pennsylvania, refinery from Valvoline
1950 - Ashland acquired Tonawanda, New York, refinery from Frontier
1955 - Ashland shut down St Elmo, Illinois, refinery
1959 - Ohio Company acquired Detroit refinery and Muskegon, Michigan, refinery from Aurora Gasoline
1959 - Ashland acquired (second) Louisville, Kentucky, refinery from Louisville refining
1962 - Ohio Company changed name to Marathon
1962 - Marathon acquired Texas City refinery from Plymouth Oil
1962 - Ashland shut down (first) Louisville, Kentucky, refinery
1968 - Ashland shut down Niles, Ohio, refinery
1970 - Ashland acquired St Paul Park refinery
1970 - Ashland acquired Heath, Ohio, refinery from Union Oil
1972 - Ashland acquired Thermopolis, Wyoming, from Empire State
1974 - Ashland shut down Thermopolis, Wyoming, refinery
1977 - Marathon acquired Garyville refinery from ECOL
1982 - Marathon acquired by US Steel but kept Marathon name
1984 - Ashland shut down Tonawanda, New York, and Findlay, Ohio, refineries
1984 - Ashland shut down (second) Louisville, Kentucky, refinery and Heath, Ohio, refinery
1985 - Ashland shut down Freedom Town, Pennsylvania, refinery
1998 - Refining assets of Marathon and Ashland placed into Marathon Ashland JV
2005 - Marathon bought out Ashland share of JV
2010 - Marathon sold St Paul Park refinery to Northern Tier Energy
2011 - Downstream business separated from upstream to form Marathon Petroleum
2013 - Marathon acquired Galveston Bay refinery from BP
2018 - Marathon merged with Andeavor, adding eleven refineries (Anacortes, Carson, Dickinson, El Paso, Gallup, Kenai, Martinez, Mandan, St Paul Park, Salt Lake City, Wilmington)
2020 - Marathon announced that it will be closing its Gallup, Martinez and Dickinson refineries.