$HE SEC Filings

Filing Filed On
D 13 Apr 2011
8-K 11 Apr 2011
8-K 01 Apr 2011
8-K 28 Mar 2011
AUTO-GENERATED PAPER DOCUMENT 24 Mar 2011
DEFA14A 21 Mar 2011
DEF 14A 21 Mar 2011
PRIMARY DOCUMENT 16 Mar 2011
PRIMARY DOCUMENT 14 Mar 2011
8-K 14 Mar 2011
PRIMARY DOCUMENT 11 Mar 2011
8-K 07 Mar 2011
8-K 04 Mar 2011
PRIMARY DOCUMENT 04 Mar 2011
PRIMARY DOCUMENT 01 Mar 2011
10-K 18 Feb 2011
8-K 14 Feb 2011
PRIMARY DOCUMENT 11 Feb 2011
PRIMARY DOCUMENT 11 Feb 2011
PRIMARY DOCUMENT 11 Feb 2011