Consent of Independent Registered Public Accounting Firm
The Board of Directors and Stockholders
Alon USA Energy, Inc.:
We consent to the incorporation by reference in the registration statement (No. 333-127051) on Form
S-8 the registration statement (No. 333-163430) on Form S-1, and the registration statement (No.
333-171111) on Form S-3 of Alon USA Energy, Inc. of our reports dated March 14, 2011, with respect
to the consolidated balance sheets of Alon USA Energy, Inc. and subsidiaries as of December 31,
2010 and 2009 and the related consolidated statements of operations, cash flows and stockholders
equity for each of the years in the three-year period ended December 31, 2010, and the
effectiveness of internal control over financial reporting as of December 31, 2010, which reports
appear in the December 31, 2010 annual report on Form 10-K of Alon USA Energy, Inc.
/s/ KPMG LLP
March 14, 2011