3rd Quarter Results

Caterpillar Inc.

20 March 2012

Caterpillar Inc.

Quarterly Report on Form 10-Q for the quarterly period ended 30 September 2011

Quarterly Report on Form 10-Q for the quarterly period ended 30 September 2010

Quarterly Report on Form 10-Q for the quarterly period ended 30 September 2009

The Quarterly Reports on Form 10-Q for the quarterly periods ended 30 September 2011, 30 September 2010 and 30 September 2009 have been submitted to the National Storage Mechanism and will shortly be available for inspection at www.Hemscott.com/nsm.do. The Quarterly Reports on Form 10-Q are also available on the U.S. Securities Exchange Commission website at http://www.sec.gov.

CONTACT: Jim Dugan, Corporate Public Affairs, Office, +1-309-494-4100, or Mobile, +1-309-360-7311