$HE SEC Filings

Filing Filed On
8-K 05 Nov 2010
8-K 01 Nov 2010
8-K 26 Oct 2010
8-K 04 Oct 2010
8-K 01 Oct 2010
8-K 20 Sep 2010
8-K 07 Sep 2010
8-K 03 Sep 2010
8-K 09 Aug 2010
8-K 02 Aug 2010
8-K 02 Jul 2010
8-K 23 Jun 2010
8-K 14 May 2010
8-K 12 May 2010
8-K 10 May 2010
8-K 20 Apr 2010
8-K 09 Apr 2010
8-K 05 Mar 2010
8-K 01 Mar 2010
FORM 8-K 22 Feb 2010