| ceix-20200930.xsd | EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA |
| ceix-20200930_cal.xml | EX-101.CAL - XBRL TAXONOMY EXTENSION CALCULATION LINKBASE |
| ceix-20200930_def.xml | EX-101.DEF - XBRL TAXONOMY EXTENSION DEFINITION LINKBASE |
| ceix-20200930_lab.xml | EX-101.LAB - XBRL TAXONOMY EXTENSION LABEL LINKBASE |
| ceix-20200930_pre.xml | EX-101.PRE - XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE |
| MetaLinks.json | JSON - IDEA: XBRL DOCUMENT |