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| 0000316300-16-000087-index.html | 2016-03-02 14:46:32 | |
| 0000316300-16-000087.txt | 2016-03-02 14:46:32 | |
 0000316300-16-000087-xbrl.zip | 425831 | 2016-03-02 14:46:32 |
| exhibit211subsidiarylist20.htm | 12729 | 2016-03-02 14:46:32 |
| exhibit231kpmgconsent2015.htm | 3474 | 2016-03-02 14:46:32 |
| exhibit232leekeelingconsen.htm | 4942 | 2016-03-02 14:46:32 |
| exhibit233nsaiconsent2015.htm | 13435 | 2016-03-02 14:46:32 |
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| exhibit234ryderscottconsen.htm | 13172 | 2016-03-02 14:46:32 |
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| exhibit311peo2015.htm | 12875 | 2016-03-02 14:46:32 |
| exhibit312pfo2015.htm | 12853 | 2016-03-02 14:46:32 |
| exhibit321pfopeo2015.htm | 9302 | 2016-03-02 14:46:32 |
| exhibit991leekeeling2015.htm | 65373 | 2016-03-02 14:46:32 |
| exhibit992nsai2015.htm | 140949 | 2016-03-02 14:46:32 |
 exhibit992nsai2015image3.jpg | 140514 | 2016-03-02 14:46:32 |
| exhibit993ryderscott2015.htm | 163950 | 2016-03-02 14:46:32 |
| FilingSummary.xml | 51994 | 2016-03-02 14:46:32 |
| Financial_Report.xlsx | 150115 | 2016-03-02 14:46:32 |
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| report.css | 2768 | 2016-03-02 14:46:32 |
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| Show.js | 1411 | 2016-03-02 14:46:32 |
| xco-20151231.xml | 4918435 | 2016-03-02 14:46:32 |
| xco-20151231.xsd | 88586 | 2016-03-02 14:46:32 |
| xco-20151231_cal.xml | 141700 | 2016-03-02 14:46:32 |
| xco-20151231_def.xml | 440219 | 2016-03-02 14:46:32 |
| xco-20151231_lab.xml | 1074845 | 2016-03-02 14:46:32 |
| xco-20151231_pre.xml | 674666 | 2016-03-02 14:46:32 |
| xco2015123110k.htm | 4417287 | 2016-03-02 14:46:32 |