$CRK SEC Filings

Filing Filed On
PRIMARY DOCUMENT 01 Nov 2019
PRIMARY DOCUMENT 20 Sep 2019
4 28 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 26 Aug 2019
PRIMARY DOCUMENT 19 Aug 2019
PRIMARY DOCUMENT 19 Aug 2019
PRIMARY DOCUMENT 19 Aug 2019
PRIMARY DOCUMENT 19 Aug 2019
PRIMARY DOCUMENT 19 Aug 2019
PRIMARY DOCUMENT 19 Aug 2019