About Delek US Holdings, Inc.

Delek US Holdings, Inc. is a diversified downstream energy company with assets in petroleum refining, logistics, asphalt, renewable fuels and convenience store retailing. The refining assets consist of refineries operated in Tyler and Big Spring, Texas, El Dorado, Arkansas and Krotz Springs, Louisiana with a combined nameplate crude throughput capacity of 302,000 barrels per day.

The logistics operations consist of Delek Logistics. Delek US and its affiliates also own the general partner and an approximate 80 percent limited partner interest in Delek Logistics. Delek Logistics is a growth-oriented master limited partnership focused on owning and operating midstream energy infrastructure assets.

There are more than 700 ALON & DK fuel station locations throughout east and west Texas, New Mexico, Oklahoma, Arizona, Louisiana, Arkansas and Colorado.

About WEX

DK’s fleet card partner is WEX Inc., a leading provider of corporate payment solutions. From its roots in fleet card payments beginning in 1983, WEX has expanded the scope of its business into a multi-channel provider of corporate payment solutions representing approximately 10 million vehicles, and offering exceptional payment security and control across a wide spectrum of business sectors. For more information, visit www.wexinc.com.