BRENTWOOD, Tenn. February 1, 2012 -- Delek US Holdings, Inc. (NYSE: DK) today announced that the Company intends to issue a press release summarizing fourth quarter and full-year 2011 results after the U.S. stock market closes during the evening of Wednesday, March 7, 2012.  A conference call to discuss fourth quarter and full-year 2011 results is scheduled to begin at 10:00 a.m. CT (11:00 a.m. ET) on Thursday, March 8, 2012.