Marathon Anacortes Refinery
petroleum refinery in Washington, United States
The Anacortes Refinery is a petroleum refinery located about 70 miles north of Seattle on March Point (Puget Sound), just outside Anacortes, Washington, United States. The refinery has operated in Anacortes since 1955, and has 425 full-time employees. It has a 120,000 barrels per day (bpd) capacity and is operated by Marathon Petroleum.
Production
The refinery receives crude feedstock via the Trans Mountain pipeline from Canada, by rail from North Dakota and the central U.S., and by tanker from Alaska and foreign sources. Gasoline, jet and diesel fuel are the primary products, which are supplied to end users predominantly in Washington, Oregon and British Columbia. Other products include heavy fuel oils, liquefied petroleum gas, and asphalt. Secondary processing facilities include a fluid catalytic cracker, an alkylation unit, hydrotreating units and a naphtha reformer. Finished products are shipped through a third-party pipeline system that serves western Washington and Oregon.
Explosion
On April 2, 2010, an explosion at the Anacortes refinery killed seven workers when a heat exchanger failed during startup after a maintenance operation.
This brief starts where responsible research should: with the source description of “Marathon Anacortes Refinery” as petroleum refinery in Washington, United States. Everything that follows is an evidence route, not borrowed authority.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 6, 2026. The linked authority identifier is Q25004713. Authority coordinates are 48.497, -122.567. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1955 and 2010.
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This entry incorporates text from “Marathon Anacortes Refinery” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.