$HES SEC Filings

Filing Filed On
UPLOAD 22 Oct 2010
UPLOAD 23 Sep 2010
UPLOAD 22 Sep 2010
UPLOAD 02 Oct 2008
UPLOAD 03 Jul 2008
UPLOAD 05 May 2008
UPLOAD 23 Apr 2008
UPLOAD 20 Mar 2008
UPLOAD 05 Oct 2007
UPLOAD 13 Jul 2007
UPLOAD 13 Jul 2007
UPLOAD 02 Mar 2006
UPLOAD 21 Feb 2006
UPLOAD 30 Jan 2006