Delek US Holdings, Inc. is a diversified downstream energy company based in Brentwood, Tennessee. Founded in 2001, it operates primarily in petroleum refining, renewable fuels, asphalt production, logistics, and transportation across the southern and southwestern United States. As a Fortune 500 company, Delek US employs over 3,500 people and has expanded its operations through strategic mergers and acquisitions, including the notable acquisition of Alon USA in 2017.

The company operates four inland refineries with a combined capacity of about 300,000 barrels per day, primarily processing light crude oil. Delek US also owns three biodiesel plants with an annual capacity of approximately 40 million gallons. Its asphalt production supports various construction applications, while its logistics segment manages the transportation and storage of crude oil and refined products. Delek US is committed to operational efficiency and ethical management, focusing on safe and reliable energy delivery while investing in cleaner solutions to meet market demands.