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| 0001564590-17-015874-index.html | 2017-08-07 11:41:38 | |
| 0001564590-17-015874.txt | 2017-08-07 11:41:38 | |
 0001564590-17-015874-xbrl.zip | 112658 | 2017-08-07 11:41:38 |
| crk-10q_20170630.htm | 946543 | 2017-08-07 11:41:38 |
| crk-20170630.xml | 1108662 | 2017-08-07 11:41:38 |
| crk-20170630.xsd | 47151 | 2017-08-07 11:41:38 |
| crk-20170630_cal.xml | 47672 | 2017-08-07 11:41:38 |
| crk-20170630_def.xml | 108786 | 2017-08-07 11:41:38 |
| crk-20170630_lab.xml | 313820 | 2017-08-07 11:41:38 |
| crk-20170630_pre.xml | 224982 | 2017-08-07 11:41:38 |
| crk-ex311_6.htm | 16763 | 2017-08-07 11:41:38 |
| crk-ex312_9.htm | 16727 | 2017-08-07 11:41:38 |
| crk-ex321_7.htm | 6043 | 2017-08-07 11:41:38 |
| crk-ex322_8.htm | 6019 | 2017-08-07 11:41:38 |
| FilingSummary.xml | 23133 | 2017-08-07 11:41:38 |
| Financial_Report.xlsx | 44807 | 2017-08-07 11:41:38 |
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| R9.htm | 5149 | 2017-08-07 11:41:38 |
| report.css | 2767 | 2017-08-07 11:41:38 |
| Show.js | 1410 | 2017-08-07 11:41:38 |