Exhibit 3.21(a)

                      CERTIFICATE OF OWNERSHIP AND MERGER
                                    MERGING
                       PARAGON COAL INTERNATIONAL, INC.
                            A DELAWARE CORPORATION

                                     INTO

                      BLUEGRASS COAL DEVELOPMENT COMPANY
                            A DELAWARE CORPORATION

     The undersigned Corporation organized and existing under the General
Corporation Law of the State of Delaware, DOES HEREBY CERTIFY:

     FIRST: That the name and state of the incorporation of each of the
constituent corporations of the merger is as follows:

               Name                          State of Incorporation
               ----                          ----------------------

          Paragon Coal International, Inc.          Delaware

          Bluegrass Coal Development Company        Delaware

     SECOND: Bluegrass Coal Development Company owns 100% of the outstanding
stock of Paragon Coal International, Inc.

     THIRD: That the Board of Directors of Bluegrass Coal Development Company
adopted as of May 23, 1997 the following resolutions pursuant to which Paragon
Coal International, Inc. is merged with and into Bluegrass Coal Development
Company in accordance with Section 253(a) of the General Corporation Law of the
State of Delaware:

          WHEREAS it is deemed advisable and in the best interests of the
     Corporation that Paragon Coal International, Inc. ("Paragon"), a direct
     wholly-owned subsidiary of the Corporation, be merged with and into the
     Corporation

          NOW THEREFORE, BE IT:

          RESOLVED, that Paragon be merged with and into the Corporation and
     that the Corporation assume all of Paragon's obligations, all in accordance
     with Section 253 of the General Corporation Law of the State of Delaware;


                                                                          Page 1

 
          RESOLVED, that the Certificate of Ownership and Merger merging Paragon
     with and into the Corporation to be filed with the Secretary of State of
     Delaware (the "Merger Certificate"), be, and it hereby is, authorized and
     approved in all respects; and

          RESOLVED, that the officers of the Corporation be, and they hereby
     are, authorized and directed to execute and file the Merger Certificate and
     to take any and all actions necessary to effectuate the merger described in
     the foregoing resolutions.

     FOURTH: That the name of the surviving corporation of the merger is
Bluegrass Coal Development Company.

     FIFTH: The surviving corporation may be served with process in the State of
Delaware in any proceeding for enforcement of any obligation of Delaware, as
well as for any enforcement of any obligation of the surviving corporation
arising from the merger, and it does hereby irrevocably appoint the Secretary of
State of the State of Delaware as its agent to accept service of process or any
such suit or other proceeding. The address to which a copy of such process shall
be mailed by the Secretary of State of Delaware is 50 Jerome Lane, Fairview
Heights, Illinois 62208 until the surviving shall have hereafter designated in
writing to the said Secretary of State a different address for such purpose.

                              Bluegrass Coal Development Company



                              By: /s/ C.K. Lane 
                                 ----------------------
                              Name: C.K. Lane
                                    -------------------

                              Title: President
                                     ------------------

Dated: May 23, 1997

                                                                          Page 2

 
                           CERTIFICATE OF AMENDMENT 
                                      TO 
                         CERTIFICATE OF INCORPORATION 
                                      OF 
                             SHELL MINING COMPANY

     The undersigned, being the Vice President and Secretary, respectively, of
Shell Mining Company, a corporation organized and existing under and by virtue
of the General Corporation Law of the State of Delaware (the "Corporation") do
hereby certify as follows:

               1.  That the Sole Director of the Corporation pursuant to a
          Written Consent and in accordance with Sections 141(f) and 242 of the
          General Corporation Law of the State of Delaware, adopted the
          resolution set forth below proposing an amendment to the Certificate
          of Incorporation of the Corporation (the "Amendment") and further
          directed that the Amendment be submitted to the stockholders of the
          Corporation entitled to vote thereon for their consideration and
          approval:

               RESOLVED, that the Certificate of Incorporation of the
          Corporation be amended by deleting Article First and creating a new
          Article First to read as follows (the "Amendment"):

               "FIRST: The name of the corporation is SMC MINING COMPANY
          (hereinafter called "the Corporation" or "this Corporation")."

          2.   That the Sole Stockholder of the Corporation, by written consent,
          approved and adopted the Amendment in accordance with Sections 228 and
          242 of the General Corporation Law of the State of Delaware.

     IN WITNESS WHEREOF, the undersigned, being the Vice President and Secretary
hereinabove named, for the purpose of amending the Certificate of Incorporation
of the Corporation pursuant to the General Corporation Law of the State of
Delaware, under penalties of perjury do each hereby declare and certify that
this is the act and deed of the Corporation and the facts stated herein 

                                                                          Page 3

 
are true, and accordingly have hereunto signed this Certificate of Amendment to
Certificate of Incorporation this 23 day of November, 1992.


                              By: /s/ Brent Motchan       
                                 ---------------------
                                    Brent Motchan
                                    Vice President

ATTEST:



By: /s/ Michael Kafoury
   --------------------
     Michael Kafoury
     Secretary

                                                                          Page 4

 
                        CERTIFICATE OF AMENDMENT OF THE
                         CERTIFICATE OF INCORPORATION
                                      OF
                             SHELL MINING COMPANY

                 Adopted in accordance with the provisions of 
       Section 242 of the General Corporation Law the State of Delaware
          

     The undersigned officers of Shell mining Company, a corporation existing
under the laws of the State of Delaware (the "Corporation"), do hereby certify 
as follows:

     FIRST: The Certificate of Incorporation of the corporation (the 
     "Certificate of Incorporation") is hereby amended by deleting ARTICLE
     THIRD in its entirety and substituting in lieu of a new ARTICLE THIRD
     as follows:

            "THIRD.  The nature of the business or purposes to be conducted or
          promoted is to engage in any lawful act or activity for which
          corporations may be organized under the General Corporation Law of
          the State of Delaware."

     SECOND:   That the Board of Directors of the Corporation, in accordance
     with Sections 141 (f) and 242 of the General Corporation Law of the State
     of Delaware, duly adopted the foregoing amendment to the Certificate of
     Incorporation of the Corporation by unanimous written consent.

     THIRD: That the Sale Stockholder of the Corporation, in accordance with
     Sections 228 (c) and 242 of the General Corporation Law of the State of 
     Delaware, approved the foregoing amendment to the Certificate of
     Incorporation of the Corporation by unanimous written consent.

     IN WITNESS WHEREOF, the undersigned being the President and Secretary for
the purpose of amending the Certificate of Incorporation of the corporation
pursuant to the General Corporation Law of the State of Delaware, under
penalties of perjury do each hereby declare and


                                                                          Page 5
 

 
certify that this is the act and deed of the Corporation and the facts stated 
herein are true, and accordingly have hereunto signed this Certificate of 
Amendment of the Certificate of Incorporation as of this 10 day of November,
1992.

                                             SHELL MINING COMPANY


                                             By: /s/ ILLEGIBLE
                                                 -------------

                                             Title: President
                                                    ---------

ATTEST:

By /s/ ILLEGIBLE
   -------------

Title Secretary
      ---------



                                                                          Page 6

 
                           CERTIFICATE OF CHANGE OF
                         LOCATION OF REGISTERED OFFICE
                            AND OF REGISTERED AGENT


It is hereby certified that:

1.   The name of the corporation (hereinafter called the "Corporation" is:

                             SHELL MINING COMPANY

2.   The registered office of the corporation within the State of Delaware is 
     hereby changed to 32 Loockerman Square, Suite L-100, City of Dover, 19901,
     County of Kent.

3.   The registered agent of the corporation within the State of Delaware is
     hereby changed to The Prentice-Hall Corporation System, Inc., the business
     Office of which is identical with the registered office of the corporation
     as hereby changed.

4.   The corporation has authorized the change hereinbefore set forth by 
     resolution of its Board of Directors.


Signed on January 3, 1990

                                   /s/ J.L. Mahaffey
                                   ------------------------
                                   J.L. Mahaffey, President

Attest:

/s/ S.J. Paul
- - ----------------------
S.J. Paul, Secretary



                                                                          Page 7

 
                      CERTIFICATE OF OWNERSHIP AND MERGER
                                    MERGING
                            SEAWAY II COAL COMPANY

                                     INTO

                             SHELL MINING COMPANY

     SHELL MINING COMPANY, a corporation organized and existing under the laws 
of Delaware,

     DOES HEREBY CERTIFY:

     FIRST: That this corporation was incorporated on the 17/th/ day of October,
1983, pursuant to the General Corporation Law of the State of Delaware.

     SECOND:  That this corporation owns one hundred percentum of the
outstanding shares of stock of SEAWAY II COAL COMPANY, a corporation
incorporated on the 1/st/ day of August, 1979, pursuant to the General
Corporation Law of the State of Delaware .

     THIRD: That this corporation, by the following resolutions of its Board of
Directors, duly adopted by written unanimous consent of all of the Directors of
the Board effective the 30 day of August, 1985 determined to and did merge into
itself said SEAWAY II COAL COMPANY:

          RESOLVED, That the Board of Directors deems it expedient, advantageous
     and in the best interests of the Corporation that Seaway II Coal Company be
     merged, pursuant to the provisions of Sections 253 of Title 8 of the
     Delaware Code, with and into the Corporation, as the surviving
     corporation, thereby effecting the vesting in the Corporation of all the
     property, rights, privileges, powers, franchises and all other interests of
     Seaway II Coal Company and the assumption by the Corporation of all the 
     obligations of Seaway II Coal Company.

          RESOLVED,  That the Corporation and Seaway II Coal Company,a 
     corporation organized on the 1/st/ day of August, 1979, under the General
     Corporation Law of the State of Delaware, merge with and into the 
     Corporation, as the surviving corporation, and assume all of the
     obligations of said Seaway II Coal Company, that,


                                                                          Page 8

 

 
   

 
     for such purposes, the President and the Secretary or Assistant Secretary
     of this Corporation be, and they hereby are, authorized to execute in the
     name of this Corporation and under its corporate seat, and to acknowledge,
     in accordance with Section 103 of the General Corporation Law of the State
     of Delaware, a Certificate of Ownership and Merger certifying the ownership
     by this Corporation of all the outstanding shares of the stock of said
     Seaway II Coal Company, and setting forth a copy of this resolution and the
     date of the adoption thereof, that the said officers of this Corporation
     be, and they hereby are, authorized to cause said Certificate of Ownership
     and Merger, when executed and acknowledged, as authorized in this
     resolution, to be filed in the office of the Secretary of State of the
     State of Delaware and to cause a certified copy thereof to be recorded in
     the office of the Recorder of Deeds of the County of New Castle, Delaware;
     that, effective upon the filing and recording as aforesaid of said
     Certificate of Ownership and Merger, said Seaway II Coal Company shall be
     merged with and into, and its property, in, and its liabilities and
     obligations shall be assumed by, this Corporation, and that the officers of
     this Corporation be, and they hereby are, authorized to do all other acts
     and things whatsoever, whether within or without the State of Delaware,
     which may be or become in any manner necessary or desirable to effectuate
     this resolution and said merger.

          RESOLVED, That the officers of the Corporation be,and they hereby are,
     authorized to execute and deliver, in the name and on behalf of the
     Corporation, and under its corporate seal or otherwise, any and all such
     other deeds, documents and instruments, and to take any and all such other
     action and do any and all such other things, as they may deem necessary or
     appropriate to carry out the transactions hereinabove referred to or to
     effectuate the foregoing resolutions.   

     FOURTH: Anything herein or elsewhere to the contrary notwithstanding, this

merger may be terminated and abandoned by the board of directors of SHELL

MINING COMPANY at any time prior to the date of filing the merger with the 

Secretary of State.
    
 
                                                                          Page 9

 
     IN WITNESS WHEREOF, said SHELL MINING COMPANY has caused this certificate
to be signed by Jack L. Mahaffey, its President, and attested by S. R.
Natenberg, its Secretary, this 30th day of August, 1985.


                              SHELL MINING COMPANY


                              By: /s/ Illegible
                                 ------------------------
                                  President

ATTEST:



/s/ Illegible
- - --------------------
Secretary

                                                                         Page 10

 
STATE OF TEXAS      )
                    ) SS:
COUNTY OF HARRIS    )

     BEFORE ME, A Notary Public in and for Harris County, Texas, on this day
personally appeared Jack L. Mahaffey known to me to be the person and officer
whose name is subscribed to the foregoing Certificate of Ownership and Merger,
and having been by me first duly sworn, declared that the same was the act and
deed of said Quazite Corporation, a corporation; and that he executed the same
as the act and deed of such corporation for the purposes and consideration
therein expressed and that the facts stated therein are true.

     GIVEN under my hand and seal of office this 30/th/ day of August, 1985.




                                        /s/ Linda Cheryl Smedley
                                        --------------------------------------
                                        Notary Public in and for
                                        Harris County, Texas

                                                                         Page 11

 
                     RESTATED CERTIFICATE OF INCORPORATION
                                      OF
                             SHELL MINING COMPANY


     SHELL MINING COMPANY a corporation organized and existing under the laws of
the State of Delaware, hereby certifies as follows:

     1.   The name of the corporation is SHELL MINING COMPANY and the name under
which the corporation was originally incorporated is SHELL MINING COMPANY.

          The date of filing its original Certificate of Incorporation with the
Secretary of State was October 17, 1983.

     2.   This Restated Certificate of Incorporation restates and integrates and
further amends the Certificate of Incorporation of this corporation in its
entirety.

     3.   The text of the Certificate of Incorporation as amended or
supplemented heretofore is further amended hereby to read as herein set forth in
full:

                         CERTIFICATE OF INCORPORATION
                                      OF
                             SHELL MINING COMPANY

          FIRST: The name of the corporation is SPELL MINING COMPANY
     (hereinafter called "the Corporation" or "this Corporation").

          SECOND: The address of its registered office in the State of
     Delaware is Corporation Trust Center, 1209 Orange Street, in the
     City of Wilmington, County of New Castle. The name of its
     registered agent at such address is The Corporation Trust
     Company.

          THIRD: The business purposes of the Corporation are to
     engage in the exploration for, development, mining, production,
     purchasing, transportation, washing, treating, refining, and
     marketing of coal, oil shale, gold, silver, crude oil, natural
     gas and any other minerals or natural resources or the products
     therefrom; to own and hold, directly or indirectly, equity or
     other securities or interests in

                                                               Page 12

 
     corporations, partnerships or other associations or ventures
     engaged in one or more of the above activities to acquire and
     employ such property as necessary and to make and enter into such
     contracts and agreements as appropriate in respect to the
     foregoing; and, in furtherance of such business purposes, to
     engage in any lawful act or activity for which corporations may
     be organized under the General Corporation Law of Delaware.

          FOURTH: The election of directors need not be by written
     ballot unless the By-Laws of the Corporation shall so provide.

          FIFTH: The total number of shares of stock which the
     Corporation shall have authority to issue is Ten Thousand
     (10,000) shares of common stock, and the par value of each such
     share is one dollar ($1.00).

          SIXTH: The Board of Directors of the Corporation in
     exercising its powers in the furtherance of the above stated
     business purposes, shall direct the management of the business
     and the conduct of the affairs of the Corporation by
     establishment of policies, procedures, and controls which shall
     govern the conduct of the Corporation and which shall preserve
     the separate legal identity of the Corporation.

          SEVENTH: A director of this Corporation, or any person
     serving as a director of another corporation at the request of
     this Corporation, shall not be personally liable to this
     Corporation or its stockholders for monetary damages for breach
     of fiduciary duty as a director, except for liability (i) for any
     breach of the director's duty of loyalty to this Corporation (or
     such other corporation) or its stockholders, (ii) for acts or
     omissions not in good faith or which involve intentional
     misconduct or a knowing Violation of law, (iii) under Section 174
     of the Delaware General Corpora tion Law, or (iv) for any
     transaction from which the director derived an improper personal
     benefit.

          This Corporation shall have the authority to the full extent
     not prohibited by law, as provided in the By-Laws of this
     Corporation or otherwise authorized by the Board of Directors or
     by the stockholders of this Corporation, to indemnify any per son
     who is or was a director, officer, employee or agent of this
     Corporation or is or was serving at the request of this
     Corporation as a director, officer, employee or agent of another
     corporation, partnership, joint venture, trust, employee benefit
     plan or other enterprise or entity from and against any and all
     expenses, liabilities or losses asserted against, or incurred by
     any such person in any such capacity, or arising out of his
     status as such; and the indemnification authorized herein shall
     not be deemed exclusive of any other rights to which those
     indemnified may be entitled under any By-law, agreement, vote of
     stockholders or disinterested directors or otherwise, both as to
     action in his official capacity and as to action in another
     capacity while holding

                                                               Page 13

 
     such office, and shall continue as to a person who has ceased to
     be a director, officer, employee or agent and shall inure to the
     benefit of the heirs, executors and adminis trators of such a
     person.

          This Corporation shall have the authority to the full extent
     not prohibited by law, as provided In the By-Laws of this
     Corporation or otherwise authorized by the Board of Directors or
     by the stockholders of this Corporation, to purchase and main
     tain insurance in any form from any affiliated or other insurance
     company and to use other arrangements (including, without
     limitation, trust funds, security interests, or surety
     arrangements) to protect itself or any person who is or was a
     director, officer, employee or agent of this Corporation or
     serving at the request of this Corporation as a director,
     officer, employee or agent of another corporation, partnership,
     joint venture, trust, employee benefit plan or other enterprise
     or entity against any expense, liability or loss asserted
     against, or incurred by any such person in any such capacity, or
     arising out of his status as such, whether or not this
     Corporation would have the power to indemnify such person against
     such expense, liability or loss under the Delaware General
     Corporation Law.

     4.   This Restated Certificate of Incorporation was duly adopted by
unanimous written consent of the stockholders in accordance with the applicable
provisions of Sections 228, 242 and 245 of the General Corporation Law of the
State of Delaware.

     IN WITNESS WHEREOF, said SHELL MINING COMPANY has caused this certificate
to be signed by JACK L. MAHAFFEY its PRESIDENT and attested by S. J. PAUL, its
SECRETARY, this 14th day of February, 1989.

                              SHELL MINING COMPANY


                              By: /s/ Illegible
                                  ----------------------------
                                    President


                                                                         Page 14

 
(CORPORATE SEAL)

ATTEST:



/s/ Illegible
- - ---------------------------
     Secretary

                                                                         Page 15

 
                         CERTIFICATE OF INCORPORATION
                                      OF
                             SHELL MINING COMPANY


     FIRST: The name of the corporation is SHELL MINING COMPANY (hereinafter
called "the Corporation" or "this Corporation").

     SECOND: The address of its registered office in the State of Delaware is
100 West Tenth Street, in the City of Wilmington, County of New Castle The name
of its registered agent at such address is The Corporation Trust Company.

     THIRD: The business purposes of the Corporation are to engage in the
exploration for, development, mining, production, purchasing, transportation,
washing, treating, refining, and marketing of coal, oil shale, gold, silver,
crude oil, natural gas and any other minerals or natural resources or the
products therefrom; to own and hold, directly or indirectly, equity or other
securities or interests in corporations, partnerships or other associations or
ventures engaged in one or more of the above activities; to acquire and employ
such property as necessary and to make and enter into such contracts and
agreements as appropriate in respect to the foregoing; and, in furtherance of
such business purposes, to engage in any lawful act or activity for which
corporations may be organized under the General Corporation Law of Delaware.

     FOURTH: The total number of shares of stock which the Corporation shall
have authority to issue is ten thousand (10,000) shares of common stock, and the
par value of each such share is one dollar ($1.00).

     FIFTH: The name and mailing address of the incorporator is,
 
                                                                         Page 16

 
                   NAME                      MAILING ADDRESS
                   ----                      ---------------

              SHELL OIL COMPANY            P. 0. Box 2463
                                           Houston, TX 77001

     SIXTH: The Board of Directors of the Corporation in exercising its powers,
in furtherance of the above stated business purposes, shall direct the
management of the business and conduct the affairs of the Corporation by
establishment of policies, procedures, and controls which shall pertain to the
conduct of the Corporation and which shall preserve the separate legal identity
of the Corporation and, further, which shall be compatible with the purposes,
policies, and respective separate legal identity of affiliated corporations.

     THE UNDERSIGNED, being the incorporator hereinabove named for the purpose
of forming a corporation pursuant to the General Corporation Law of Delaware,
does make this certificate, hereby declaring and certifying that this is its act
and deed and the facts herein stated are true, and accordingly has hereunto set
its hand and seal this day of October, 1983.

                              SHELL MINING COMPANY


                              By: /s/ Illegible
                                  ---------------------------------
                                   Executive Vice President


(CORPORATE SEAL)


ATTEST:



/s/ Illegible
- - ------------------------
Assistant Secretary

                                                                         Page 17

 
(STATE OF TEXAS     )
                    ) SS:
COUNTY OF HARRIS    )

     BEFORE ME, A Notary Public in and for Harris County, Texas, on this day
personally appeared C. L. Blackburn, known to me to be the person and officer
whose name is subscribed to the foregoing Certificate of Incorporation, and
having been by me first duly sworn, declared that the same was the act and deed
of said SHELL OIL COMPANY, a corporation; and that he executed the same as the
act and deed of such corporation for the purposes and consideration therein
expressed and that the facts stated therein are true.

     GIVEN under my hand and seal of office this 13 day of October, 1983.

                              /s/ Illegible
                              -----------------------------
                              Notary Public in and for
                              the State of Texas


                                                                         Page 18