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Located in northwest Indiana, our Whiting refinery is the largest in the Midwest and bp’s largest anywhere in the world. Able to process around 440,000 barrels of crude oil every day, Whiting produces a wide range of liquid fuels, along with 7% of all asphalt in the United States. Whiting refinery reached an important milestone by safely bringing its new naphtha hydrotreater processing unit online in August of 2020. bp invested over $300 million over the three-year construction period of the unit. The naphtha hydrotreater removes sulfur from gasoline and improves the facility’s ability to produce cleaner-burning fuels. The naphtha hydrotreater allows the refinery to produce the full slate of US EPA Tier 3 fuels, which require gasoline to have an average sulfur content of no more than 10 parts per million. According to the EPA, “these lower sulfur fuels will help lower individual vehicle emissions and make automobile emission control systems more effective."