SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934
                                (Amendment No. 1)


                               Ashland Coal, Inc.
       -----------------------------------------------------------------
                                (Name of Issuer)


                     Common Stock, par value $.01 per share
       -----------------------------------------------------------------
                         (Title of Class of Securities)


                                   043906 10 6
       -----------------------------------------------------------------
                                 (CUSIP Number)


                                 Jeffry N. Quinn
                            Arch Mineral Corporation
                                  CityPlace One
                         St. Louis, Missouri 63141-7056
        -----------------------------------------------------------------
                       (Name, Address and Telephone Number
                         of Person Authorized to Receive
                           Notices and Communications)


                                 April 16, 1997
       -----------------------------------------------------------------
                          (Date of Event Which Requires
                            Filing of This Statement)



If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

                               Page 1 of 12 Pages




                                  SCHEDULE 13D
                                  ------------
CUSIP No. 043906 10 6

1)    NAME OF REPORTING PERSON                  Arch Mineral Corporation
                                                ------------------------
      S.S. OR I.R.S. IDENTIFICATION
      NO. OF ABOVE PERSON                       43-0921172
                                                ------------------------

2)    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)   [   ]
                                                                 (b)   [   ]

3)    SEC USE ONLY

4)    SOURCE OF FUNDS                                 OO (see Item 3)
                                                      ---------------
5)    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
      PURSUANT TO ITEM 2(d) or 2(e)                                   [   ]

6)    CITIZENSHIP OR PLACE OF ORGANIZATION            Delaware
                                                      --------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

      7)    SOLE VOTING POWER                       0
                                                ---------

      8)    SHARED VOTING POWER                 12,116,186  (See Item 5)
                                                ------------------------

      9)    SOLE DISPOSITIVE POWER                  0
                                                ---------

      10)   SHARED DISPOSITIVE POWER            12,116,186  (See Item 5)
                                                ------------------------

11)   AGGREGATE AMOUNT BENEFICIALLY
     OWNED BY EACH REPORTING PERSON             12,116,186  (See Item 5)
                                                ------------------------

12)   CHECK BOX IF THE AGGREGATE AMOUNT
      IN ROW (11) EXCLUDES CERTAIN SHARES*             [     ]

13)   PERCENT OF CLASS REPRESENTED BY
      AMOUNT IN ROW (11)                        66.9% (See Item 5)
                                                ------------------

14)   TYPE OF REPORTING PERSON                        CO
                                                      --

                               Page 2 of 12 Pages



            This  Amendment  to  Schedule  13D  amends  the  Schedule  13D  (the
"Schedule  13D") dated April 14, 1997 of Arch Mineral  Corporation  as described
below.

            The third  paragraph under the caption "Item 3. Source and Amount of
Funds or Other  Consideration."  of the Schedule 13D is hereby deleted,  and the
following is hereby added after the second paragraph thereunder:

            Carboex  International,  Ltd.  ("Carboex"),  a  stockholder  of
      Ashland Coal, has entered into a Voting Agreement,  dated as of April
      16, 1997 (the  "Carboex  Voting  Agreement"  and,  together  with the
      Voting Agreement, the "Voting Agreements"), pursuant to which Carboex
      has agreed to vote its shares of Class C Preferred  Stock,  par value
      $100 per share,  of Ashland Coal for the approval and adoption of the
      Merger  Agreement  and in  favor  of the  Merger  and to grant to the
      Company,  upon the Company's  request,  its irrevocable proxy to vote
      such shares in such manner. A copy of the Carboex Voting Agreement is
      filed as Exhibit 7.3 to this Statement and specifically  incorporated
      by reference herein.

            Pursuant to the Voting Agreements,  the consideration  given by
      the Company in connection with the execution and performance  thereof
      was  its  entering  into  the  Merger  Agreement  and  incurring  the
      obligations set forth therein.

            The  third   paragraph   under  the  caption  "Item  4.  Purpose  of
Transaction." of the Schedule 13D is hereby deleted.

            The first two  paragraphs  under the  caption  "Item 5.  Interest in
Securities  of the Issuer." of the Schedule 13D are hereby  amended and restated
in their entireties as follows:

            By  virtue  of the  Voting  Agreements,  pursuant  to which (i)
      Ashland Inc. has agreed with the Company that it will vote, and grant
      to the Company,  at the  Company's  request,  a proxy with respect to
      7,529,686  shares of  Ashland  Coal  Common  Stock and 150  shares of
      Ashland Coal Class B Preferred  Stock owned by Ashland Inc., and (ii)
      Carboex has agreed with the Company  that it will vote,  and grant to
      the Company,  at the Company's  request,  a proxy with respect to the
      100 shares of Ashland Coal Class C Preferred  Stock owned by Carboex,
      the Company may be deemed to have shared  power to vote such  shares.
      Included  among the  12,116,186  shares of Ashland  Coal Common Stock
      reported  as  beneficially  owned by the  Company  are the  7,529,686
      shares reported above, an additional 2,751,900 shares of Ashland Coal
      Common Stock that would be issuable upon  conversion of 150 shares of
      Ashland Coal Class B 

                            Page 3 of 12 Pages



      Preferred Stock,  and an additional  1,834,600 shares of Ashland Coal
      Common Stock that would be issuable upon  conversion of 100 shares of
      Ashland  Coal Class C  Preferred  Stock.  Each share of Ashland  Coal
      Class B Preferred  Stock and Class C Preferred  Stock is  convertible
      into  18,346  shares of  Ashland  Coal  Common  Stock and the  holder
      thereof is entitled to cast 18,346  votes on matters  submitted  to a
      vote of Ashland Coal stockholders.

            By virtue of the Voting  Agreements,  pursuant to which each of
      Ashland  Inc.  and Carboex  has also agreed with the Company  that it
      will not  dispose of such  shares,  the Company may be deemed to have
      shared  power  to  dispose  of such  shares.  Such  shares  represent
      approximately  66.9% of the  combined  voting  power of Ashland  Coal
      Common Stock and Ashland Coal Preferred Stock outstanding on April 4,
      1997.

            The  following  is  hereby added under the caption "Item 7. Material
To Be Filed As Exhibits.":

            7.3  Voting  Agreement,  dated as of  April  16,  1997,  by and
      between  Arch Mineral  Corporation  and Carboex  International,  Ltd.
      (Filed herewith.)

                            Page 4 of 12 Pages




                                    SIGNATURE

            After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete and
correct.


                                    ARCH MINERAL CORPORATION



                                    By:  /s/Jeffry N. Quinn
                                         ------------------------------
                                          Signature


                                          Jeffry N. Quinn
                                          Senior Vice President,
                                          Secretary and General Counsel
                                          ------------------------------
                                          Name and Title


Date: April 24, 1997

                            Page 5 of 12 Pages





                                  EXHIBIT INDEX

Exhibit
No.               Description
- -------           -----------

7.3               Voting  Agreement,  dated as of April 16, 1997, by and between
                  Arch Mineral Corporation and Carboex International, Ltd.


                            Page 6 of 12 Pages





                                VOTING AGREEMENT



            THIS VOTING  AGREEMENT,  dated as of April 16, 1997,  by and between
Arch Mineral  Corporation.,  a Delaware corporation ("AMC"), and the stockholder
identified on the signature page hereof (the "Stockholder");

                                   WITNESSETH:

            WHEREAS, the Stockholder,  as of the date hereof, is the owner of or
has the sole right to vote the number of shares of Common Stock,  par value $.01
per share ("Common  Stock"),  Class B Preferred  Stock, par value $100 per share
("Class B Preferred  Stock") and/or Class C Preferred  Stock, par value $100 per
share  ("Class C Preferred  Stock" and,  together  with Common Stock and Class B
Preferred Stock,  "Capital Stock") of Ashland Coal, Inc., a Delaware corporation
(the  "Company"),  set forth below the name of the  Stockholder on the signature
page hereof (the "Shares"); and

            WHEREAS,  in  reliance  upon  the  execution  and  delivery  of this
Agreement,  AMC will enter into an Agreement and Plan of Merger, dated as of the
date  hereof  (the  "Merger  Agreement"),   with  the  Company  and  AMC  Merger
Corporation which provides,  among other things, that upon the terms and subject
to the conditions  thereof the Company will become a wholly owned  subsidiary of
AMC (the "Merger"); and

            WHEREAS,  to induce AMC to enter into the  Merger  Agreement  and to
incur the obligations  set forth therein,  the Stockholder is entering into this
Agreement  pursuant  to which  the  Stockholder  agrees  to vote in favor of the
Merger, and to make certain agreements with respect to the Shares upon the terms
and conditions set forth herein;

            NOW THEREFORE,  in  consideration of the foregoing and of the mutual
covenants  and  agreements  set forth  herein  and for other  good and  valuable
consideration,  the receipt and  adequacy of which is hereby  acknowledged,  the
parties hereto agree as follows:

            Section 1. Voting of Shares;  Proxy. (a) The Stockholder agrees that
until the earlier of (i) the Effective Time (as defined in the Merger Agreement)
or (ii) the date on which the  Merger  Agreement  is  terminated  (the  earliest
thereof being hereinafter referred to as the "Expiration Date"), the Stockholder
shall vote all Shares owned by the  Stockholder  at any meeting of the Company's
stockholders (whether annual or special and whether or not an adjourned meeting)
for  adoption  and  approval  of  the  Merger  Agreement  and  the  transactions
contemplated  thereby,  including  the Merger as such  Merger  Agreement  may be
modified or amended from time to time. Any such vote shall be cast in 

                               Page 7 of 12 Pages



accordance with such procedures relating thereto as shall ensure that it is duly
counted for purposes of determining that a quorum is present and for purposes of
recording the results of such vote or consent.

            (b) At the request of AMC, the  Stockholder,  in  furtherance of the
transactions  contemplated  hereby and by the Merger Agreement,  and in order to
secure the  performance by the  Stockholder of its duties under this  Agreement,
shall promptly  execute,  in accordance with the provisions of Section 212(e) of
the Delaware General  Corporation Law, and deliver to AMC, an irrevocable proxy,
substantially in the form of Annex A hereto, and irrevocably  appoint AMC or its
designees,  with full power of substitution,  its attorney and proxy to vote all
of the Shares  owned by the  Stockholder  in respect of any of the  matters  set
forth in, and in accordance with the provisions of Section 1(a). The Stockholder
acknowledges  that the proxy  executed and delivered by it shall be coupled with
an interest,  shall  constitute,  among other things,  an inducement  for AMC to
enter  into  the  Merger  Agreement,  shall  be  irrevocable  and  shall  not be
terminated by operation of law or upon the occurrence of any event.

            Section 2. Covenants of the Stockholder.  The Stockholder  covenants
and agrees for the benefit of AMC that, until the Expiration Date, it will:

            (a) not  sell,  transfer,  pledge,  hypothecate,  encumber,  assign,
      tender or otherwise dispose of, or other than as expressly contemplated by
      the Merger Agreement, enter into any contract, option or other arrangement
      or   understanding   with   respect   to  the  sale,   transfer,   pledge,
      hypothecation,  encumbrance,  assignment,  tender or other disposition of,
      any of the Shares owned by it or any interest therein; and

            (b) other than as  expressly  contemplated  by this  Agreement,  not
      grant any powers of  attorney  or proxies or consents in respect of any of
      the  Shares  owned by it,  deposit  any of the  Shares  owned by it into a
      voting  trust,  enter into a voting  agreement  with respect to any of the
      Shares owned by it or otherwise  restrict the ability of the holder of any
      of the  Shares  owned by it freely to  exercise  all  voting  rights  with
      respect thereto.

            Section  3.  Covenants  of AMC.  AMC  covenants  and  agrees for the
benefit  of  the  Stockholder  that  (a)  immediately  upon  execution  of  this
Agreement,  it  shall  enter  into  the  Merger  Agreement,  and (b)  until  the
Expiration  Date, it shall use best efforts to take,  or cause to be taken,  all
action,  and do, or cause to be done, all things necessary or advisable in order
to consummate and make effective the transactions contemplated by this Agreement
and the Merger Agreement,  consistent with the terms and conditions of each such
Agreement;  provided, however, that nothing in this Section 3, Section 12 or any
other  provision of this  Agreement is intended,  nor shall it be construed,  to
limit or 

                               Page 8 of 12 Pages


in any way  restrict  AMC's right or ability to exercise any of its rights under
the Merger Agreement.

            Section 4.  Representations  and Warranties of the Stockholder.  The
Stockholder represents and warrants to AMC that: (a) the execution, delivery and
performance by the Stockholder of this Agreement will not conflict with, require
a consent,  waiver or approval under, or result in a breach of or default under,
any of the terms of any  contract,  commitment or other  obligation  (written or
oral) to which  the  Stockholder  is  bound;  (b) this  Agreement  has been duly
executed and delivered by the  Stockholder  and  constitutes a legal,  valid and
binding  obligation of the Stockholder,  enforceable  against the Stockholder in
accordance  with its terms;  (c) the Stockholder is the sole owner of or has the
sole right to vote the Shares  and the  Shares  represent  all shares of Capital
Stock which the  Stockholder  is the sole owner of or has the sole right to vote
at the date hereof, and the Stockholder does not have any right to acquire,  nor
is it the  "beneficial  owner" (as such term is defined in Rule 13d-3  under the
Securities  Exchange Act of 1934,  as amended) of, any other shares of any class
of  capital  stock  of  the  Company  or  any  securities  convertible  into  or
exchangeable  or exercisable for any shares of any class of capital stock of the
Company;  (d) the Stockholder has full right, power and authority to execute and
deliver this  Agreement and to perform its  obligations  hereunder;  and (e) the
Stockholder  owns the  Shares  free and  clear of all  liens,  claims,  pledges,
charges, proxies, restrictions,  encumbrances, proxies, voting trusts and voting
agreements of any nature whatsoever other than as provided by this Agreement and
other than the Restated  Shareholders  Agreement  among  Ashland  Inc.,  Carboex
International,  Ltd. and the Company dated  December 12, 1991, as amended August
6, 1993. The representations and warranties contained herein shall be made as of
the date  hereof and as of each day from the date hereof  through and  including
the Effective Time (as defined in the Merger Agreement).

            Section 5. Adjustments;  Additional  Shares. In the event (a) of any
stock dividend,  stock split,  merger (other than the Merger)  recapitalization,
reclassification, conversion, combination, exchange of shares or the like of any
of the Capital  Stock of the Company on, of or affecting  the Shares or (b) that
the Stockholder  shall become the beneficial  owner of any additional  shares of
Capital Stock or other  securities  entitling the holder thereof to vote or give
consent  with  respect to the  matters set forth in Section 1, then the terms of
this Agreement  shall apply to the shares of Capital Stock or other  instruments
or documents held by the Stockholder  immediately following the effectiveness of
the events  described in clause (a) or the  Stockholder  becoming the beneficial
owner thereof as described in clause (b), as though,  in either case,  they were
Shares hereunder.

                               Page 9 of 12 Pages



            Section 6. Specific Performance.  The Stockholder  acknowledges that
the  agreements  contained  in  this  Agreement  are  an  integral  part  of the
transactions  contemplated  by the Merger  Agreement,  and that,  without  these
agreements, AMC would not enter into the Merger Agreement, and acknowledges that
damages would be an inadequate  remedy for any breach by it of the provisions of
this  Agreement.  Accordingly,  the  Stockholder  and AMC  each  agree  that the
obligations  of the parties  hereunder  shall be  specifically  enforceable  and
neither  party shall take any action to impede the other from seeking to enforce
such right of specific performance.

            Section 7. Notices. All notices, requests, claims, demands and other
communications  hereunder  shall  be  effective  upon  receipt  (or  refusal  of
receipt),  shall be in writing and shall be delivered in person,  by telecopy or
telefacsimile,  by telegram, by next-day courier service, or by mail (registered
or certified mail, postage prepaid, return receipt requested) to the Stockholder
at the address  listed on the  signature  page hereof,  and to AMC at Suite 300,
CityPlace One, St. Louis, Missouri 63141, Attention:  Secretary, telecopy number
(314)  994-2734,  or to such other  address or telecopy  number as any party may
have furnished to the other in writing in accordance herewith.

            Section 8. Binding Effect;  Survival. Upon execution and delivery of
this  Agreement  by  AMC,  this  Agreement  shall  become  effective  as to  the
Stockholder at the time the  Stockholder  executes and delivers this  Agreement.
This  Agreement  shall inure to the  benefit of and be binding  upon the parties
hereto and their respective successors and assigns.

            Section 9. Governing  Law. This  Agreement  shall be governed by and
construed in  accordance  with the laws of the State of Delaware  applicable  to
agreements made and to be performed entirely within such State.

            Section 10.  Counterparts.  This  Agreement may be executed in two
counterparts,  both of which shall be an original  and both of which  together
shall constitute one and the same agreement.

            Section 11. Effect of Headings.  The  Section headings  herein are
for  convenience  of  reference  only and shall not  affect  the  construction
hereof.

            Section 12. Additional Agreements; Further Assurance. Subject to the
terms and conditions  herein provided,  each of the parties hereto agrees to use
all reasonable  efforts to take, or cause to be taken,  all action and to do, or
cause to be done,  all things  necessary,  proper or advisable to consummate and
make effective the transactions  contemplated by this Agreement. The Stockholder
will provide AMC with all documents which may reasonably be requested by AMC and
will take reasonable steps to 

                              Page 10 of 12 Pages




enable AMC to obtain fully all rights and benefits provided it hereunder.

            Section  13.  Amendment;  Waiver.  No  amendment  or  waiver  of any
provision of this Agreement or consent to departure therefrom shall be effective
unless  in  writing  and  signed by AMC and the  Stockholder,  in the case of an
amendment,  or by the party which is the beneficiary of any such  provision,  in
the case of a waiver or a consent to depart therefrom.

            IN WITNESS  WHEREOF,  this  Agreement  has been duly executed by the
parties hereto all as of the day and year first above written.



                                          ARCH MINERAL CORPORATION



                                          By /s/ Jeffry N. Quinn

                                             --------------------------

                                          Name:  Jeffry N. Quinn

                                          Title:  Senior Vice President



CARBOEX INTERNATIONAL LIMITED
Name of Stockholder


By:  /s/Juan A. Ferrando
      -------------------------
            Director

Address:    Sasoon Building

            Shirley Street & Victoria Avenue

            P. O. Box N-272, Nassau - Bahamas

Number of Shares:

             0         (Common Stock)
      ---------------

             0         (Class B Preferred Stock)
      ---------------

            100        (Class C Preferred Stock)
      ---------------


                              Page 11 of 12 Pages








                                                                         ANNEX A

                                 [Form of Proxy]

                                IRREVOCABLE PROXY



            In order to secure the  performance of the duties of the undersigned
pursuant to the Voting  Agreement,  dated as of ____________,  1997 (the "Voting
Agreement"),  between the undersigned and Arch Mineral  Corporation,  a Delaware
corporation,  a copy of such agreement being attached hereto and incorporated by
reference herein, the undersigned hereby irrevocably  appoints  ________________
and  ___________________,  and each of them, the attorneys,  agents and proxies,
with full power of  substitution in each of them, for the undersigned and in the
name, place and stead of the  undersigned,  in respect of any of the matters set
forth in clauses (i) and (ii) of Section 1 of the Voting Agreement,  to vote or,
if applicable,  to give written  consent,  in accordance  with the provisions of
said  Section 1 and  otherwise  act  (consistent  with the  terms of the  Voting
Agreement) with respect to all shares of Common Stock, par value $.01 per share,
Class B Preferred  Stock, par value $100 per share, and Class C Preferred Stock,
par value  $100 per share (the  "Shares"),  of Ashland  Coal,  Inc.,  a Delaware
corporation (the "Company"),  whether now owned or hereafter acquired, which the
undersigned  is or may be entitled  to vote at any  meeting of the Company  held
after the date hereof, whether annual or special and whether or not an adjourned
meeting, or, if applicable,  to give written consent with respect thereto.  This
Proxy is coupled  with an  interest,  shall be  irrevocable  and  binding on any
successor  in  interest  of the  undersigned  and  shall  not be  terminated  by
operation of law or upon the  occurrence of any event.  This Proxy shall operate
to  revoke  any  prior  proxy  as  to  the  Shares  heretofore  granted  by  the
undersigned. This Proxy shall terminate on __________, 1997. This Proxy has been
executed in accordance with Section 212(e) of the Delaware  General  Corporation
Law.



Dated:____________________                _______________________



                              Page 12 of 12 Pages