The Marathon Anacortes Refinery, prior to October 2018 known as the Andeavor Anacortes Refinery and prior to August 2017 known as the Tesoro Anacortes Refinery, is a petroleum refinery located about 70 miles north of Seattle on March Point (Puget Sound), just outside Anacortes, Washington. 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.