<SEC-DOCUMENT>0001104659-18-033645-index.html : 20180516 <SEC-HEADER>0001104659-18-033645.hdr.sgml : 20180516 <ACCEPTANCE-DATETIME>20180516080047 ACCESSION NUMBER: 0001104659-18-033645 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 32 CONFORMED PERIOD OF REPORT: 20180516 ITEM INFORMATION: Regulation FD Disclosure ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20180516 DATE AS OF CHANGE: 20180516 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ARCH COAL INC CENTRAL INDEX KEY: 0001037676 STANDARD INDUSTRIAL CLASSIFICATION: BITUMINOUS COAL & LIGNITE SURFACE MINING [1221] IRS NUMBER: 430921172 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-13105 FILM NUMBER: 18838810 BUSINESS ADDRESS: STREET 1: CITY PLACE ONE STE 300 STREET 2: ARCH MINERAL CORP CITY: ST LOUIS STATE: MO ZIP: 63141 BUSINESS PHONE: 3149942700 MAIL ADDRESS: STREET 1: CITYPLACE ONE SUITE 300 STREET 2: ARCH MINERAL CORP CITY: CREVE COEUR STATE: MO ZIP: 63141 FORMER COMPANY: FORMER CONFORMED NAME: ARCH MINERAL CORP DATE OF NAME CHANGE: 19970411 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>a18-13620_18k.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: a18-13620_18k.htm
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