$CRK SEC Filings

Filing Filed On
PRIMARY DOCUMENT 18 May 2017
PRIMARY DOCUMENT 18 May 2017
PRIMARY DOCUMENT 01 Mar 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 21 Feb 2017
PRIMARY DOCUMENT 15 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017
PRIMARY DOCUMENT 14 Feb 2017