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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 10.75pt; text-align: right"><B>Registration No. 333- </B><FONT STYLE="color: #1C1C1C">[</FONT>&#9679;]</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><FONT STYLE="font-size: 10pt"><B>As
filed with the Securities and Exchange Commission on November 1, <FONT STYLE="font-family: Times New Roman, Times, Serif">2016&nbsp;</FONT></B></FONT><B><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 11pt">&nbsp;</FONT></B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 98pt; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>UNITED
STATES</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>WASHINGTON, DC 20549</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-size: 14pt"><B>FORM
S-8&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>REGISTRATION STATEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>UNDER</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>THE SECURITIES ACT OF 1933</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-size: 14pt"><B>ARCH
COAL, INC.</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">(Exact name
of registrant as specified in its charter)</P>

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    <TD STYLE="width: 50%; text-align: center; font-size: 12pt; text-indent: 0in"><FONT STYLE="font-size: 10pt"><B>Delaware</B></FONT></TD>
    <TD STYLE="width: 50%; text-align: center; font-size: 12pt; text-indent: 0in"><FONT STYLE="font-size: 10pt"><B>43-0921172</B></FONT></TD></TR>
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    <TD STYLE="text-align: center; font-size: 12pt; text-indent: 0in"><FONT STYLE="font-size: 10pt">(State or other jurisdiction of incorporation or organization)</FONT></TD>
    <TD STYLE="text-align: center; font-size: 12pt; text-indent: 0in"><FONT STYLE="font-size: 10pt">(I.R.S. Employer Identification No.)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center; font-size: 12pt; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-align: center; font-size: 12pt; text-indent: 0in">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center; font-size: 12pt; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-align: center; font-size: 12pt; text-indent: 0in">&nbsp;</TD></TR>
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    <TD STYLE="width: 50%; font-weight: normal; text-align: center"><FONT STYLE="font-size: 10pt"><B>One CityPlace Drive, Ste.
    300</B></FONT></TD>
    <TD STYLE="width: 50%; font-weight: normal; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt"><B>St. Louis, Missouri</B></FONT></TD>
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt"><B>63141</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center; text-indent: 0in"><FONT STYLE="font-size: 10pt">(Address of principal executive offices)</FONT></TD>
    <TD STYLE="text-align: center; text-indent: 0in"><FONT STYLE="font-size: 10pt">(Zip Code)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-align: center; text-indent: 0in">&nbsp;</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>ARCH COAL, INC.
2016 OMNIBUS INCENTIVE PLAN</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">(Full
title of the plan)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Robert G. Jones</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Senior Vice President&mdash;Law,
General Counsel and Secretary</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Arch Coal, Inc.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>One CityPlace Drive,
Ste. 300</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>St. Louis, Missouri 63141</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">(Name
and address of agent for service)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>(314) 994-2700</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">(Telephone
number, including area code, of agent for service)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><I>With a copy to:</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Michael Kaplan</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Davis
Polk &amp; Wardwell LLP<BR>
450 Lexington Avenue</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>New
York, NY 10017</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 4pt 0pt 0.25in; text-align: center; text-indent: -0.15pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.8pt"><B>Indicate by check mark whether the registrant
is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions
of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer&rdquo; and &ldquo;smaller reporting company&rdquo; in Rule 12b-2
of the Exchange Act. </B></P>

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    <TD STYLE="width: 61%; font-size: 10pt"><B>Large accelerated filer&nbsp;&nbsp;&#9744;</B></TD>
    <TD STYLE="width: 39%; font-size: 10pt"><B>Accelerated filer </B>&#9746;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 10pt"><B>Non-accelerated filer </B>&#9744;<B>&nbsp;(Do not check if a smaller reporting company)</B></TD>
    <TD STYLE="font-size: 10pt"><B>Smaller reporting company </B>&#9744;</TD></TR>
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<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 36.3pt; text-align: left"><FONT STYLE="font-size: 10pt"><BR CLEAR="ALL"></FONT></P>

<P STYLE="font: bold 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 36.3pt; text-align: left"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 36.3pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CALCULATION
OF REGISTRATION FEE</FONT></P>

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<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 44%; border-top: Black 1.5pt double; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: center; font-weight: bold"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title
    of Each Class of Securities to Be Registered</FONT></TD>
    <TD STYLE="width: 12%; border-top: Black 1.5pt double; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; font-weight: bold"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amount
    to Be Registered (1)</FONT></TD>
    <TD STYLE="width: 15%; border-top: Black 1.5pt double; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; font-weight: bold"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposed
    Maximum Offering Price Per Share (2)</FONT></TD>
    <TD STYLE="width: 15%; border-top: Black 1.5pt double; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; font-weight: bold"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposed
    Maximum Aggregate Offering Price(2)</FONT></TD>
    <TD STYLE="width: 14%; border-top: Black 1.5pt double; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; font-weight: bold"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amount
    of Registration Fee (3)</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: bottom; border-right: Black 1pt solid; border-bottom: Black 1.5pt double; border-left: Black 1pt solid; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Class
    A Common Stock, par value $0.01 per share, to be issued under the Arch Coal, Inc. 2016 Omnibus Incentive Plan</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1.5pt double; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #1C1C1C">2,990,540</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1.5pt double; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #1C1C1C">$</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">73.02</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1.5pt double; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #1C1C1C">$</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">218,369,230.80</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt double; text-align: center; border-right: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: #1C1C1C">$</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">25,308.99</FONT></TD></TR>
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<TD STYLE="width: 11.05pt"></TD><TD STYLE="width: 25.25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD><TD STYLE="padding-right: 34.85pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
                                         Registration Statement on Form S-8 (this &ldquo;Registration Statement&rdquo;) covers
                                         shares of Class A Common Stock, par value $0.01 per share (&ldquo;Class A Common Stock&rdquo;),
                                         of Arch Coal, Inc. (the &ldquo;Company&rdquo; or the &ldquo;Registrant&rdquo;) (i) issuable
                                         pursuant to the Arch Coal, Inc. 2016 Omnibus Incentive Plan (the &ldquo;Plan&rdquo;);
                                         (ii) to be issued in the future under the Plan and (iii) pursuant to Rule 416(a) under
                                         the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;), any additional
                                         shares of Class A Common Stock that become issuable under the Plan by reason of any stock
                                         dividend, stock split, or other similar transaction.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 11.05pt"></TD><TD STYLE="width: 25.25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD><TD STYLE="padding-right: 34.85pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Estimated
                                         pursuant to Rule 457(h) and Rule 457(c) under the Securities Act, solely for the purpose
                                         of computing the registration fee, based on the average of the high and low prices reported
                                         for a share of Class A Common Stock on the New York Stock Exchange on <FONT STYLE="color: #1C1C1C">October
                                         </FONT>31, 2016.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 11.05pt"></TD><TD STYLE="width: 25.25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD><TD STYLE="padding-right: 34.85pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rounded
                                         to the nearest penny.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36.3pt; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 36.3pt; text-align: center"></P>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif"></P>

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</P>

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<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>


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<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 12.75pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PART
I</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 12.75pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 16.8pt 0pt 11pt; text-indent: 25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
information specified in Item 1 and Item 2 of Part I of Form S-8 is omitted from this filing in accordance with the provisions
of Rule 428 under the Securities Act and the introductory note to Part I of the Form S-8 instructions. The documents containing
the information specified in Part I will be delivered to the participants in the Plan as required by Rule 428(b)(1).</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 16.8pt 0pt 11pt; text-indent: 25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PART
II</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 125.05pt 0pt 11pt; text-indent: 129.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.</B></FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 125.05pt 0pt 11pt; text-indent: 129.4pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following documents filed by the Registrant with the Securities and Exchange Commission (the &ldquo;Commission&rdquo;) are incorporated
by reference into this Registration Statement:</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 34.95pt"></TD><TD STYLE="width: -17.55pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</FONT></TD><TD STYLE="padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
                                         Registrant&rsquo;s Annual Report on Form 10-K for the fiscal year ended December 31,
                                         2015, as amended.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 34.95pt"></TD><TD STYLE="width: -17.55pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD><TD STYLE="padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
                                         Registrant&rsquo;s Quarterly Reports on Form 10-Q for the periods ended March 31 and
                                         June 30, 2016.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 34.95pt"></TD><TD STYLE="width: -17.55pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD><TD STYLE="padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
                                         description of the Company&rsquo;s share capital which is contained in the Company&rsquo;s
                                         Registration Statement on Form 8-A (Registration No. <FONT STYLE="color: #1C1C1C">001-13105</FONT>),
                                         dated October <FONT STYLE="color: #1C1C1C">4</FONT>, 2016, including any amendments or
                                         supplements thereto.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: [overflow]"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
addition, all documents subsequently filed by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange
Act of 1934, as amended (the &ldquo;Exchange Act&rdquo;), prior to the filing of a post-effective amendment to this Registration
Statement which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold,
shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of the filing
of such documents.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: [overflow]"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: [overflow]"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified
or superseded for purposes of this Registration Statement to the extent that a statement contained herein (or in any other subsequently
filed document which also is incorporated or deemed to be incorporated by reference herein), modifies or supersedes such statements.
Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of
this Registration Statement.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: [overflow]"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="page-break-before: always; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
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<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ITEM
4. DESCRIPTION OF SECURITIES</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
applicable.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ITEM
5. INTERESTS OF NAMED EXPERTS AND COUNSEL</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Robert
G. Jones, Senior Vice President&mdash;Law, General Counsel and Secretary of Arch Coal, Inc., has rendered an opinion as to the
validity of the shares of Class A Common Stock being registered hereby. Mr. Jones is paid a salary by us and is a participant
in various employee benefit plans offered to our employees generally.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ITEM
6. INDEMNIFICATION OF DIRECTORS AND OFFICERS</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Certificate of Incorporation provides that no director will be personally liable to the Company or the Company&rsquo;s stockholders
for monetary damages for breach of fiduciary duty as a director, except as required by applicable law, as in effect from time
to time. Currently, Delaware law requires that liability be imposed for the following:</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"></P>

<P STYLE="margin: 0"></P>

<P STYLE="margin: 0"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-size: 10pt">any
                                         breach of the director&rsquo;s duty of loyalty to the Company or to the Company&rsquo;s
                                         stockholders;</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-size: 10pt">any
                                         act or omission not in good faith or which involved intentional misconduct or a knowing
                                         violation of law;</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-size: 10pt">unlawful
                                         payments of dividends or unlawful stock repurchases or redemptions as provided in Section
                                         174 of the Delaware General Corporation Law; and</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Times New Roman, Times, Serif"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Symbol; font-size: 10pt">&middot;</FONT></TD><TD><FONT STYLE="font-size: 10pt">any
                                         transaction from which the director derived an improper personal benefit.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Times New Roman, Times, Serif"></P>


<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">The
Bylaws provide that, to the fullest extent permitted by law, the Company will indemnify any officer or director of the Company
against all damages, claims and liabilities arising out of the fact that the person is or was our director or officer, or served
any other entity at the Company&rsquo;s request as a director, officer, employee, agent or fiduciary. The right to indemnification
conferred pursuant to the indemnification provisions of the Bylaws shall also include the right to be paid by the Company the
expenses incurred in connection with any such proceeding in advance of its final disposition to the fullest extent authorized
by Delaware Law. Amending the indemnification provisions will not reduce the Company&rsquo;s indemnification obligations relating
to actions taken before an amendment. The Registrant carries insurance policies insuring its directors and officers against certain
liabilities that they may incur in their capacity as directors and officers. </FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">Each
indemnification agreement is substantially in the form included as Exhibit 10.6 to the Registrant&rsquo;s Current Report on Form
8-K filed with the Commission  on October 7, 2016. The description of the indemnification
agreements is qualified in its entirety by reference to the full text of the form of indemnification agreement, which is incorporated
by reference herein. </FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ITEM
7. EXEMPTION FROM REGISTRATION CLAIMED</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
applicable.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ITEM
8. EXHIBITS.</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following exhibits are filed herewith or incorporated by reference as part of this Registration Statement:</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 11pt; text-indent: 25pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Arial, Helvetica, Sans-Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 9%; text-align: center; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibit
    <U>Number</U></FONT></TD>
    <TD STYLE="width: 91%; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.1</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amended and Restated Certificate of Incorporation
    of Arch Coal, Inc. (incorporated herein by reference to Exhibit 3.1 to the Registrant&rsquo;s registration statement on Form
    8-A filed on October 4, 2016)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.2</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bylaws of Arch Coal, Inc. (incorporated herein
    by reference to Exhibit 3.2 to the Registrant&rsquo;s registration statement on Form 8-A filed on October 4, 2016).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Opinion of counsel (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.1</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of Ernst &amp; Young LLP, independent
    registered public accounting firm (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.2</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of counsel (included in the opinion
    filed as Exhibit 5.1 hereto).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Power of Attorney (included on the signature
    page to this Registration Statement).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1</FONT></TD>
    <TD STYLE="padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Arch Coal, Inc. 2016 Omnibus Incentive Plan</FONT></TD></TR>
</TABLE>

<P STYLE="margin-top: 0; margin-bottom: 0">&nbsp;</P>

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<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ITEM
9. UNDERTAKINGS</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(a)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">The
                                         undersigned Registrant hereby undertakes:</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(1)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">To
                                         file, during any period in which offers or sales are being made, a post-effective amendment
                                         to this Registration Statement:</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(i)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">To
                                         include any prospectus required by Section 10(a)(3) of the Securities Act;</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(ii)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">To
                                         reflect in the prospectus any facts or events arising after the effective date of this
                                         Registration Statement (or the most recent post-effective amendment thereof) which, individually
                                         or in the aggregate, represent a fundamental change in the information set forth in this
                                         Registration Statement;</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(iii)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">To
                                         include any material information with respect to the Plans not previously disclosed in
                                         this Registration Statement or any material change to such information in this Registration
                                         Statement;</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal"><I>provided,
however,</I> that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective
amendment by those paragraphs is contained in periodic reports filed by the Registrant pursuant to Section 13 or 15(d) of the
Exchange Act that are incorporated by reference in this Registration Statement.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(2)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">That,
                                         for the purpose of determining any liability under the Securities Act, each such post-effective
                                         amendment shall be deemed to be a new registration statement relating to the securities
                                         offered therein, and the offering of such securities at that time shall be deemed to
                                         be the initial <I>bona fide</I> offering thereof.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.75in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(3)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">To
                                         remove from registration by means of a post-effective amendment any of the securities
                                         being registered which remain unsold at the termination of the offering.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(b)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">The
                                         undersigned Registrant hereby undertakes that, for purposes of determining any liability
                                         under the Securities Act, each filing of the Registrant&rsquo;s annual report pursuant
                                         to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of
                                         an employee benefit plan&rsquo;s annual report pursuant to Section 15(d) of the Exchange
                                         Act) that is incorporated by reference in this Registration Statement shall be deemed
                                         to be a new registration statement relating to the securities offered therein, and the
                                         offering of such securities at that time shall be deemed to be the initial <I>bona fide
                                         </I>offering thereof. </FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">(c)</FONT></TD><TD STYLE="padding-right: 13.15pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; font-weight: normal">Insofar
                                         as indemnification for liabilities arising under the Securities Act may be permitted
                                         to directors, officers and controlling persons of the Registrant pursuant to the foregoing
                                         provisions, or otherwise, the Registrant has been advised that in the opinion of the
                                         Securities and Exchange Commission such indemnification is against public policy as expressed
                                         in the Securities Act and is, therefore, unenforceable. In the event that a claim for
                                         indemnification against such liabilities (other than the payment by the Registrant of
                                         expenses incurred or paid by a director, officer or controlling person of the Registrant
                                         in the successful defense of any action, suit or proceeding) is asserted by such director,
                                         officer or controlling person in connection with the securities being registered, the
                                         Registrant will, unless in the opinion of its counsel the matter has been settled by
                                         controlling precedent, submit to a court of appropriate jurisdiction the question whether
                                         such indemnification by it is against public policy as expressed in the Securities Act
                                         and will be governed by the final adjudication of such issue.</FONT></TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 8pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="page-break-before: always; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
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<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SIGNATURES</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.15pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 16.8pt 0pt 11pt; text-indent: 30.3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe
that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement on Form S-8 to be
signed on its behalf by the undersigned, thereunto duly authorized, in the City of St. Louis, State of Missouri, on this <FONT STYLE="color: #1C1C1C">1<SUP>st
</SUP></FONT>day of November, 2016.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 16.8pt 0pt 11pt; text-indent: 30.3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 127.6pt 0pt 191.75pt; text-align: center">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Arial, Helvetica, Sans-Serif"><TR STYLE="vertical-align: top"><TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="3" STYLE="text-align: left; text-indent: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">ARCH
COAL, INC.</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="3" STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD COLSPAN="3" STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: left; text-indent: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></TD>
    <TD STYLE="text-align: left; text-indent: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; text-indent: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: left; border-bottom: black 2px solid; text-indent: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ John W. Eaves</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 6%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 30%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 8%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 5%; text-indent: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Name:</FONT></TD>
    <TD STYLE="text-align: left; width: 38%; text-indent: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">John W. Eaves</FONT></TD>
    <TD STYLE="text-align: left; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; text-indent: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Title:</FONT></TD>
    <TD STYLE="text-align: left; text-indent: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Executive Officer</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
</TABLE>
<P STYLE="margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&#160;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 0pt 214.9pt; text-indent: 0.85in"></P>


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    <DIV STYLE="page-break-before: always; margin-top: 6pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
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<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 12.5pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">POWER
OF ATTORNEY</FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 12.5pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">KNOW
ALL PERSONS BY THESE PRESENTS, that each person, whose signature appears below, constitutes and appoints John W. Eaves, John T.
Drexler and Robert G. Jones, or any of them, the undersigned&rsquo;s true and lawful attorneys and agents, with full power of
substitution and resubstitution in each, to do any and all acts and things in our name and on our behalf in our respective capacities
as directors and officers and to execute any and all instruments for us and in our names in the capacities indicated below, which
said attorneys and agents, or either one of them, may deem necessary or advisable to enable said corporation to comply with the
Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in
connection with this Registration Statement, including specifically, but without limitation, power and authority to sign for us
or any of us in our names in the capacities indicated below, any and all amendments (including post-effective amendments) hereto,
and each of the undersigned does hereby ratify and confirm all that said attorneys and agents, or either one of them or any substitute,
shall do or cause to be done by virtue hereof.&nbsp; This Power of Attorney may be executed in any number of counterparts.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the requirements of the Securities Act of 1933, as amended, the following persons in the capacities and on the dates indicated
have signed this Registration Statement below.</FONT></P>

<P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Arial, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 34%; font-size: 11pt; text-decoration: underline; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Signature</U></B></FONT></TD>
    <TD STYLE="width: 33%; font-size: 11pt; text-decoration: underline; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Capacity</U></B></FONT></TD>
    <TD STYLE="width: 33%"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>Date</U></B></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    John W. Eaves </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">John
        W. Eaves</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New oman, Times, Serif; font-size: 10pt">Chief Executive Officer, Director</FONT></P>
                                                    <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"> <I>(Principal Executive Officer)</I></FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    John T. Drexler </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">John
        T. Drexler</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Senior Vice President and Chief Financial Officer</FONT></P>
                                                    <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;<I>(Principal Financial Officer)</I></FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    John W. Lorson </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">John
        W. Lorson</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Vice President and Chief Accounting Officer</FONT></P>
                                                    <P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;<I>(Principal Accounting Officer)</I></FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    James N. Chapman </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">James
        N. Chapman</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chairman
                                    of the Board of Directors</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    Patrick J. Bartels, Jr. </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Patrick
        J. Bartels, Jr</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    Sherman K. Edmiston III </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sherman
        K. Edmiston III</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    Richard A. Navarre </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Richard
        A. Navarre</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    Patrick A. Kriegshauser </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Patrick
        A. Kriegshauser</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: top"><P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>/s/
                                    Scott D. Vogel </U></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Scott
        D. Vogel</FONT></P>
        <P STYLE="font: 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD>
    <TD STYLE="font-size: 11pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">November
    1, 2016</FONT></TD></TR>
</TABLE>
<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.25pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><BR CLEAR="ALL"></FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.25pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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INDEX</U></FONT></P>

<P STYLE="font: bold 8pt Arial, Helvetica, Sans-Serif; margin: 0pt 13.25pt 0pt 12.25pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Arial, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 9%; text-align: center; font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibit
    <U>Number</U></FONT></TD>
    <TD STYLE="width: 91%; font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.1</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amended and Restated
    Certificate of Incorporation of Arch Coal, Inc. (incorporated herein by reference to Exhibit 3.1 to the Registrant&rsquo;s
    registration statement on Form 8-A filed on October 4, 2016)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.2</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Bylaws of Arch Coal,
    Inc. (incorporated herein by reference to Exhibit 3.2 to the Registrant&rsquo;s registration statement on Form 8-A filed on
    October 4, 2016).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Opinion of counsel (filed
    herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.1</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of Ernst &amp;
    Young LLP, independent registered public accounting firm (filed herewith).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23.2</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consent of counsel (included
    in the opinion filed as Exhibit 5.1 hereto).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Power of Attorney (included
    on the signature page to this Registration Statement).</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1</FONT></TD>
    <TD STYLE="font-size: 8pt; padding-top: 3pt; padding-bottom: 3pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Arch Coal, Inc. 2016
    Omnibus Incentive Plan</FONT></TD></TR>
</TABLE>


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[{"type": "S-8", "sequence": "1", "filename": "dp69131_s8.htm", "description": "FORM S-8", "secsgml_size_bytes": 83060}]
{"company-data": {"conformed-name": "ARCH COAL INC", "cik": "0001037676", "assigned-sic": "1221", "irs-number": "430921172", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-214373", "film-number": "161965722"}, "business-address": {"street1": "CITY PLACE ONE STE 300", "street2": "ARCH MINERAL CORP", "city": "ST LOUIS", "state": "MO", "zip": "63141", "phone": "3149942700"}, "mail-address": {"street1": "CITYPLACE ONE SUITE 300", "street2": "ARCH MINERAL CORP", "city": "CREVE COEUR", "state": "MO", "zip": "63141"}, "former-company": {"former-conformed-name": "ARCH MINERAL CORP", "date-changed": "19970411"}}
Registration No. 333-
[
●]
As
filed with the Securities and Exchange Commission on November 1,
2016
UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM
S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
ARCH
COAL, INC.
(Exact name
of registrant as specified in its charter)
Delaware
43-0921172
(State or other jurisdiction of incorporation or organization)
(I.R.S. Employer Identification No.)
One CityPlace Drive, Ste.
    300
St. Louis, Missouri
63141
(Address of principal executive offices)
(Zip Code)
ARCH COAL, INC.
2016 OMNIBUS INCENTIVE PLAN
(Full
title of the plan)
Robert G. Jones
Senior Vice President—Law,
General Counsel and Secretary
Arch Coal, Inc.
One CityPlace Drive,
Ste. 300
St. Louis, Missouri 63141
(Name
and address of agent for service)
(314) 994-2700
(Telephone
number, including area code, of agent for service)
With a copy to:
Michael Kaplan
Davis
Polk & Wardwell LLP
450 Lexington Avenue
New
York, NY 10017
Indicate by check mark whether the registrant
is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions
of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2
of the Exchange Act.
Large accelerated filer  ☐
Accelerated filer
☒
Non-accelerated filer
☐
(Do not check if a smaller reporting company)
Smaller reporting company
☐
CALCULATION
OF REGISTRATION FEE
Title
    of Each Class of Securities to Be Registered
Amount
    to Be Registered (1)
Proposed
    Maximum Offering Price Per Share (2)
Proposed
    Maximum Aggregate Offering Price(2)
Amount
    of Registration Fee (3)
Class
    A Common Stock, par value $0.01 per share, to be issued under the Arch Coal, Inc. 2016 Omnibus Incentive Plan
2,990,540
$
73.02
$
218,369,230.80
$
25,308.99
(1)
This
                                         Registration Statement on Form S-8 (this "Registration Statement") covers
                                         shares of Class A Common Stock, par value $0.01 per share ("Class A Common Stock"),
                                         of Arch Coal, Inc. (the "Company" or the "Registrant") (i) issuable
                                         pursuant to the Arch Coal, Inc. 2016 Omnibus Incentive Plan (the "Plan");
                                         (ii) to be issued in the future under the Plan and (iii) pursuant to Rule 416(a) under
                                         the Securities Act of 1933, as amended (the "Securities Act"), any additional
                                         shares of Class A Common Stock that become issuable under the Plan by reason of any stock
                                         dividend, stock split, or other similar transaction.
(2)
Estimated
                                         pursuant to Rule 457(h) and Rule 457(c) under the Securities Act, solely for the purpose
                                         of computing the registration fee, based on the average of the high and low prices reported
                                         for a share of Class A Common Stock on the New York Stock Exchange on
October
31, 2016.
(3)
Rounded
                                         to the nearest penny.
PART
I
The
information specified in Item 1 and Item 2 of Part I of Form S-8 is omitted from this filing in accordance with the provisions
of Rule 428 under the Securities Act and the introductory note to Part I of the Form S-8 instructions. The documents containing
the information specified in Part I will be delivered to the participants in the Plan as required by Rule 428(b)(1).
PART
II
INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.
The
following documents filed by the Registrant with the Securities and Exchange Commission (the "Commission") are incorporated
by reference into this Registration Statement:
(a)
The
                                         Registrant's Annual Report on Form 10-K for the fiscal year ended December 31,
                                         2015, as amended.
(b)
The
                                         Registrant's Quarterly Reports on Form 10-Q for the periods ended March 31 and
                                         June 30, 2016.
(c)
The
                                         description of the Company's share capital which is contained in the Company's
                                         Registration Statement on Form 8-A (Registration No.
001-13105
),
                                         dated October
4
, 2016, including any amendments or
                                         supplements thereto.
In
addition, all documents subsequently filed by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange
Act of 1934, as amended (the "Exchange Act"), prior to the filing of a post-effective amendment to this Registration
Statement which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold,
shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of the filing
of such documents.
Any
statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified
or superseded for purposes of this Registration Statement to the extent that a statement contained herein (or in any other subsequently
filed document which also is incorporated or deemed to be incorporated by reference herein), modifies or supersedes such statements.
Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of
this Registration Statement.
ITEM
4. DESCRIPTION OF SECURITIES
Not
applicable.
ITEM
5. INTERESTS OF NAMED EXPERTS AND COUNSEL
Robert
G. Jones, Senior Vice President—Law, General Counsel and Secretary of Arch Coal, Inc., has rendered an opinion as to the
validity of the shares of Class A Common Stock being registered hereby. Mr. Jones is paid a salary by us and is a participant
in various employee benefit plans offered to our employees generally.
ITEM
6. INDEMNIFICATION OF DIRECTORS AND OFFICERS
The
Certificate of Incorporation provides that no director will be personally liable to the Company or the Company's stockholders
for monetary damages for breach of fiduciary duty as a director, except as required by applicable law, as in effect from time
to time. Currently, Delaware law requires that liability be imposed for the following:
·
any
                                         breach of the director's duty of loyalty to the Company or to the Company's
                                         stockholders;
·
any
                                         act or omission not in good faith or which involved intentional misconduct or a knowing
                                         violation of law;
·
unlawful
                                         payments of dividends or unlawful stock repurchases or redemptions as provided in Section
                                         174 of the Delaware General Corporation Law; and
·
any
                                         transaction from which the director derived an improper personal benefit.
The
Bylaws provide that, to the fullest extent permitted by law, the Company will indemnify any officer or director of the Company
against all damages, claims and liabilities arising out of the fact that the person is or was our director or officer, or served
any other entity at the Company's request as a director, officer, employee, agent or fiduciary. The right to indemnification
conferred pursuant to the indemnification provisions of the Bylaws shall also include the right to be paid by the Company the
expenses incurred in connection with any such proceeding in advance of its final disposition to the fullest extent authorized
by Delaware Law. Amending the indemnification provisions will not reduce the Company's indemnification obligations relating
to actions taken before an amendment. The Registrant carries insurance policies insuring its directors and officers against certain
liabilities that they may incur in their capacity as directors and officers.
Each
indemnification agreement is substantially in the form included as Exhibit 10.6 to the Registrant's Current Report on Form
8-K filed with the Commission  on October 7, 2016. The description of the indemnification
agreements is qualified in its entirety by reference to the full text of the form of indemnification agreement, which is incorporated
by reference herein.
ITEM
7. EXEMPTION FROM REGISTRATION CLAIMED
Not
applicable.
ITEM
8. EXHIBITS.
The
following exhibits are filed herewith or incorporated by reference as part of this Registration Statement:
Exhibit
Number
4.1
Amended and Restated Certificate of Incorporation
    of Arch Coal, Inc. (incorporated herein by reference to Exhibit 3.1 to the Registrant's registration statement on Form
    8-A filed on October 4, 2016)
4.2
Bylaws of Arch Coal, Inc. (incorporated herein
    by reference to Exhibit 3.2 to the Registrant's registration statement on Form 8-A filed on October 4, 2016).
5.1
Opinion of counsel (filed herewith).
23.1
Consent of Ernst & Young LLP, independent
    registered public accounting firm (filed herewith).
23.2
Consent of counsel (included in the opinion
    filed as Exhibit 5.1 hereto).
24
Power of Attorney (included on the signature
    page to this Registration Statement).
99.1
Arch Coal, Inc. 2016 Omnibus Incentive Plan
ITEM
9. UNDERTAKINGS
(a)
The
                                         undersigned Registrant hereby undertakes:
(1)
To
                                         file, during any period in which offers or sales are being made, a post-effective amendment
                                         to this Registration Statement:
(i)
To
                                         include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii)
To
                                         reflect in the prospectus any facts or events arising after the effective date of this
                                         Registration Statement (or the most recent post-effective amendment thereof) which, individually
                                         or in the aggregate, represent a fundamental change in the information set forth in this
                                         Registration Statement;
(iii)
To
                                         include any material information with respect to the Plans not previously disclosed in
                                         this Registration Statement or any material change to such information in this Registration
                                         Statement;
provided,
however,
that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective
amendment by those paragraphs is contained in periodic reports filed by the Registrant pursuant to Section 13 or 15(d) of the
Exchange Act that are incorporated by reference in this Registration Statement.
(2)
That,
                                         for the purpose of determining any liability under the Securities Act, each such post-effective
                                         amendment shall be deemed to be a new registration statement relating to the securities
                                         offered therein, and the offering of such securities at that time shall be deemed to
                                         be the initial
bona fide
offering thereof.
(3)
To
                                         remove from registration by means of a post-effective amendment any of the securities
                                         being registered which remain unsold at the termination of the offering.
(b)
The
                                         undersigned Registrant hereby undertakes that, for purposes of determining any liability
                                         under the Securities Act, each filing of the Registrant's annual report pursuant
                                         to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of
                                         an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange
                                         Act) that is incorporated by reference in this Registration Statement shall be deemed
                                         to be a new registration statement relating to the securities offered therein, and the
                                         offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(c)
Insofar
                                         as indemnification for liabilities arising under the Securities Act may be permitted
                                         to directors, officers and controlling persons of the Registrant pursuant to the foregoing
                                         provisions, or otherwise, the Registrant has been advised that in the opinion of the
                                         Securities and Exchange Commission such indemnification is against public policy as expressed
                                         in the Securities Act and is, therefore, unenforceable. In the event that a claim for
                                         indemnification against such liabilities (other than the payment by the Registrant of
                                         expenses incurred or paid by a director, officer or controlling person of the Registrant
                                         in the successful defense of any action, suit or proceeding) is asserted by such director,
                                         officer or controlling person in connection with the securities being registered, the
                                         Registrant will, unless in the opinion of its counsel the matter has been settled by
                                         controlling precedent, submit to a court of appropriate jurisdiction the question whether
                                         such indemnification by it is against public policy as expressed in the Securities Act
                                         and will be governed by the final adjudication of such issue.
SIGNATURES
Pursuant
to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe
that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement on Form S-8 to be
signed on its behalf by the undersigned, thereunto duly authorized, in the City of St. Louis, State of Missouri, on this
1
st
day of November, 2016.
ARCH
COAL, INC.
By:
/s/ John W. Eaves
Name:
John W. Eaves
Title:
Chief Executive Officer
POWER
OF ATTORNEY
KNOW
ALL PERSONS BY THESE PRESENTS, that each person, whose signature appears below, constitutes and appoints John W. Eaves, John T.
Drexler and Robert G. Jones, or any of them, the undersigned's true and lawful attorneys and agents, with full power of
substitution and resubstitution in each, to do any and all acts and things in our name and on our behalf in our respective capacities
as directors and officers and to execute any and all instruments for us and in our names in the capacities indicated below, which
said attorneys and agents, or either one of them, may deem necessary or advisable to enable said corporation to comply with the
Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in
connection with this Registration Statement, including specifically, but without limitation, power and authority to sign for us
or any of us in our names in the capacities indicated below, any and all amendments (including post-effective amendments) hereto,
and each of the undersigned does hereby ratify and confirm all that said attorneys and agents, or either one of them or any substitute,
shall do or cause to be done by virtue hereof.  This Power of Attorney may be executed in any number of counterparts.
Pursuant
to the requirements of the Securities Act of 1933, as amended, the following persons in the capacities and on the dates indicated
have signed this Registration Statement below.
Signature
Capacity
Date
/s/
                                    John W. Eaves
John
        W. Eaves
Chief Executive Officer, Director
(Principal Executive Officer)
November
    1, 2016
/s/
                                    John T. Drexler
John
        T. Drexler
Senior Vice President and Chief Financial Officer
(Principal Financial Officer)
November
    1, 2016
/s/
                                    John W. Lorson
John
        W. Lorson
Vice President and Chief Accounting Officer
(Principal Accounting Officer)
November
    1, 2016
/s/
                                    James N. Chapman
James
        N. Chapman
Chairman
                                    of the Board of Directors
November
    1, 2016
/s/
                                    Patrick J. Bartels, Jr.
Patrick
        J. Bartels, Jr
Director
November
    1, 2016
/s/
                                    Sherman K. Edmiston III
Sherman
        K. Edmiston III
Director
November
    1, 2016
/s/
                                    Richard A. Navarre
Richard
        A. Navarre
Director
November
    1, 2016
/s/
                                    Patrick A. Kriegshauser
Patrick
        A. Kriegshauser
Director
November
    1, 2016
/s/
                                    Scott D. Vogel
Scott
        D. Vogel
Director
November
    1, 2016
EXHIBIT
INDEX
Exhibit
Number
4.1
Amended and Restated
    Certificate of Incorporation of Arch Coal, Inc. (incorporated herein by reference to Exhibit 3.1 to the Registrant's
    registration statement on Form 8-A filed on October 4, 2016)
4.2
Bylaws of Arch Coal,
    Inc. (incorporated herein by reference to Exhibit 3.2 to the Registrant's registration statement on Form 8-A filed on
    October 4, 2016).
5.1
Opinion of counsel (filed
    herewith).
23.1
Consent of Ernst &
    Young LLP, independent registered public accounting firm (filed herewith).
23.2
Consent of counsel (included
    in the opinion filed as Exhibit 5.1 hereto).
24
Power of Attorney (included
    on the signature page to this Registration Statement).
99.1
Arch Coal, Inc. 2016
    Omnibus Incentive Plan