Document Format Files
Data Files
Seq | Description | Document | Type | Size |
---|---|---|---|---|
15 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | amr-20211231.xsd | EX-101.SCH | 141862 |
16 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | amr-20211231_cal.xml | EX-101.CAL | 188635 |
17 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | amr-20211231_def.xml | EX-101.DEF | 790707 |
18 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | amr-20211231_lab.xml | EX-101.LAB | 1528854 |
19 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | amr-20211231_pre.xml | EX-101.PRE | 1154754 |
452 | EXTRACTED XBRL INSTANCE DOCUMENT | amr-20211231_htm.xml | XML | 3883585 |
IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-38735 | Film No.: 22716265
SIC: 1221 Bituminous Coal & Lignite Surface Mining