<SEC-DOCUMENT>0001104659-17-018505-index.html : 20170322
<SEC-HEADER>0001104659-17-018505.hdr.sgml : 20170322
<ACCEPTANCE-DATETIME>20170322100531
ACCESSION NUMBER:		0001104659-17-018505
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20170322
DATE AS OF CHANGE:		20170322
EFFECTIVENESS DATE:		20170322

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13105
		FILM NUMBER:		17705853

	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>DEFA14A
<SEQUENCE>1
<FILENAME>a17-8455_3defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: a17-8455_3defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g84553bci001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g84553bci001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g84553bci002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g84553bci002.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g84553bci003.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g84553bci003.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g84553bci004.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g84553bci004.gif

</DOCUMENT>
</SEC-DOCUMENT>