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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001558370-21-000957
Filing Date
2021-02-12
Accepted
2021-02-12 16:02:54
Documents
149
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K arch-20201231x10k.htm   iXBRL 10-K 4740062
2 EX-10.16 arch-20201231ex1016f6652.htm EX-10.16 167129
3 EX-10.17 arch-20201231ex1017175c1.htm EX-10.17 161609
4 EX-10.18 arch-20201231ex1018672fc.htm EX-10.18 153357
5 EX-10.19 arch-20201231ex1019c4544.htm EX-10.19 146740
6 EX-21.1 arch-20201231ex211b01ddc.htm EX-21.1 46369
7 EX-23.1 arch-20201231ex2311cc971.htm EX-23.1 3537
8 EX-23.2 arch-20201231ex232817450.htm EX-23.2 6998
9 EX-24.1 arch-20201231ex2412cb434.htm EX-24.1 18516
10 EX-31.1 arch-20201231ex311694c3d.htm EX-31.1 11150
11 EX-31.2 arch-20201231ex31235b2f3.htm EX-31.2 15317
12 EX-32.1 arch-20201231ex32121bc0e.htm EX-32.1 7177
13 EX-32.2 arch-20201231ex322c9f583.htm EX-32.2 7338
14 EX-95 arch-20201231xex95.htm EX-95 178591
15 GRAPHIC arch-20201231x10k002.jpg GRAPHIC 6734
16 GRAPHIC arch-20201231x10k003.jpg GRAPHIC 94163
17 GRAPHIC arch-20201231x10k004.jpg GRAPHIC 103259
18 GRAPHIC arch-20201231x10k005.jpg GRAPHIC 97565
19 GRAPHIC arch-20201231x10k009.jpg GRAPHIC 57211
  Complete submission text file 0001558370-21-000957.txt   21437977

Data Files

Seq Description Document Type Size
20 EX-101.SCH arch-20201231.xsd EX-101.SCH 101071
21 EX-101.CAL arch-20201231_cal.xml EX-101.CAL 146710
22 EX-101.DEF arch-20201231_def.xml EX-101.DEF 400575
23 EX-101.LAB arch-20201231_lab.xml EX-101.LAB 997474
24 EX-101.PRE arch-20201231_pre.xml EX-101.PRE 767894
25 EXTRACTED XBRL INSTANCE DOCUMENT arch-20201231x10k_htm.xml XML 4432124
Mailing Address CITYPLACE ONE SUITE 300 ARCH MINERAL CORP CREVE COEUR MO 63141
Business Address CITY PLACE ONE STE 300 ARCH MINERAL CORP ST LOUIS MO 63141 3149942700
ARCH RESOURCES, INC. (Filer) CIK: 0001037676 (see all company filings)

IRS No.: 430921172 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-13105 | Film No.: 21627074
SIC: 1221 Bituminous Coal & Lignite Surface Mining