Flint Hills Resources produces about 4.6 billion pounds per year of base aromatic chemicals and derivatives from two of its Texas petrochemical production plants.

The Corpus Christi plant is located within the 300,000 barrel per day associated refinery from which it receives most of the feedstock for chemical production. The plant, which was acquired in 1981 and was expanded in the mid-1990s, produces core aromatics such as benzene, toluene and xylenes and further processes these into derivatives such as paraxylene, metaxylene, orthoxylene, cumene and pseudocumene.

The Port Arthur aromatics production plant receives feedstock from the adjacent olefins cracker. The plant, which was acquired in 2007, produces benzene that is further processed into cyclohexane.

The chemicals Flint Hills Resources produce are the basic building blocks for thousands of everyday products. For example, paraxylene is the primary ingredient in household items from plastic soda bottles to polyester apparel while cyclohexane is a key ingredient in the manufacture of nylon for carpet and tire cord.