Brentwood, Tennessee – August 29, 2016 — Delek US Holdings, Inc. (NYSE: DK)(“Delek”) today announced that it has entered into a definitive agreement with Compañía de Petróleos de Chile COPEC S.A. (SNSE:COPEC) (“COPEC”), pursuant to which Delek will sell MAPCO Express, Inc., and certain related affiliated companies, (together “MAPCO”) to a U.S. subsidiary of COPEC for total cash consideration of $535 million (the “Transaction”) plus MAPCO’s cash on hand at closing. This transaction is subject to customary closing conditions and is expected to close by year end.