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Wyoming Refining Company has been a cornerstone of the Newcastle, Wyoming community since the 1920’s. Our operations are strategically configured to meet the local transportation fuel needs of the Wyoming and South Dakota markets. The refinery produces a range of products from local crude oil basins. It is a highly efficient refinery, specializing in the production of light-end and middle products such as butane, propane, diesel, jet fuel, and gasoline. The capacity of the refinery is 18,000 barrels per day.