Springfield, MO and Phoenix, AZ – April 18, 2008 — O’Reilly Automotive, Inc. (“O’Reilly”) (Nasdaq: ORLY) and CSK Auto Corporation (NYSE:CAO) (“CSK”) today announced that the Federal Trade Commission has granted early termination of the waiting period under the Hart Scott Rodino Antitrust Improvements Act of 1976 for O’Reilly’s proposed acquisition of CSK. Termination of the waiting period satisfies a condition to the closing of the proposed acquisition.
