ORLY Announces 2Q Earnings Date July 13, 2006

Jul 13, 2006

Springfield, MO, July 13, 2006 – O’Reilly Automotive, Inc. (the “Company”) (Nasdaq: ORLY) announces
the release date for second quarter 2006 earnings as Wednesday, July 26, 2006, with a conference call to
follow Thursday, July 27, 2006.