$CRK
Market Cap:
$CRK SEC Filings
| Filing | Filed On |
|---|---|
| DOC ONE | 12 Apr 2010 |
| DOC ONE | 16 Feb 2010 |
| SC 13G/A | 08 Feb 2010 |
| SCHEDULE 13G DECEMBER 31, 2009 | 01 Feb 2010 |
| DOC ONE | 10 Jun 2009 |
| SEC FILING | 17 Feb 2009 |
| DOC ONE | 17 Feb 2009 |
| AMENDMENT NO. 1 | 13 Feb 2009 |
| SC 13G/A | 13 Feb 2009 |
| SC 13G/A | 11 Feb 2009 |
| SCHEDULE 13G | 09 Feb 2009 |
| SCHEDULE 13 G/A | 30 Jan 2009 |
| SCHEDULE 13 G/A | 28 Aug 2008 |
| DOC ONE | 11 Aug 2008 |
| SEC FILING | 14 Feb 2008 |
| AMENDMENT NUMBER 2 TO SCHEDULE 13G | 13 Feb 2008 |
| SCHEDULE 13G | 06 Feb 2008 |
| SCHEDULE 13 G/A | 31 Jan 2008 |
| SEC FILING | 14 Feb 2007 |
| AMENDMENT NUMBER 1 TO SCHEDULE 13G | 13 Feb 2007 |
