Document:

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March 29, 2000

Mr. William Kraemer
MCNIC Pipeline & Processing Company
170 West Jefferson, Suite 1900
Detroit, MI 48226

     RE: OPTION TO REMOVE CROWN ASPHALT CORPORATION AS OPERATOR

Dear Mr. Kraemer:

Pursuant to our recent discussions, both MCNIC Pipeline & Processing Company
("MCNIC") and Crown Asphalt Corporation ("Crown"), in their own capacity and as
all of the members of Crown Asphalt Ridge L.L.C. ("CAR") and in consideration of
additional capital contributions that MCNIC is going to make, have agreed that
MCNIC shall have the right, for a period of time, to remove Crown as Operator
under the Asphalt Ridge Operating and Management Agreement dated as of August 1,
1997 (the "Operating and Management Agreement"). To that end, MCNIC, Crown and
CAR hereby agree that, notwithstanding any provision of the Crown Asphalt Ridge
L.L.C. Operating Agreement, dated as of August 1, 1997 (the "LLC Agreement") or
the Operating and Management Agreement to the contrary, for a period of eighteen
months from the date hereof, at MCNIC's or its successor's or assign's sole
option and upon 30 days prior written notice to Crown and CAR, MCNIC, or its
successor or assign, shall have the right to terminate the Operating and
Management Agreement and remove Crown as Operator under the Operating and
Management Agreement. Such removal shall not relieve CAR of its obligation to
make any and all payments owed to Crown, as Operator under the Operating and
Management Agreement, including any employee payroll, benefits, severance and
other liabilities, which are attributable to the period of time for which Crown
was serving as Operator (the "Outstanding Costs"). Furthermore, prior to the
expiration of the 30 day notice period set forth above, MCNIC agrees that, to
the extent required, it shall have made any and all contributions to CAR
necessary for payment of its proportionate share of any undisputed Outstanding
Costs for which Crown has provided documentation. In the event MCNIC terminates
the Operating and Management Agreement and removes Crown as Operator as provided
above, then MCNIC would be the successor Operator and MCNIC and CAR would
execute a new operating and management agreement substantially in the same form
as the Operating and Management Agreement. It is the intent of the parties that
the termination of the Operating and Management Agreement and removal of Crown
as Operator will not affect Crown's right to serve as Operator for any
Subsequent Plant, Additional Opportunity or AMI Opportunity as described in
Section 15 of the Operating and Management Agreement. The new operating and
management agreement naming MCNIC as successor Operator shall contain provisions
to that effect.

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Mr. William Kraemer
MCNIC Pipeline & Processing Company
March 29, 2000
Page 2

For purposes of this Letter Agreement, terms used but not defined shall have the
meaning assigned to them in the LLC Agreement or the Operating and Management
Agreement as appropriate. Except as specifically provided in this Letter
Agreement, the LLC Agreement and the Operating and Management Agreement will
remain in full force and effect with no changes, amendments or revisions.
Further, by executing this letter, Crown shall not be deemed to be in default in
any way under the LLC Agreement or the Operating and Management Agreement. This
letter shall be binding upon the successors and assigns of MCNIC, Crown and CAR.
If the foregoing accurately reflects our understanding, please execute both
originals in the space provided below. Please return one original to me and
retain the other for your files.

Sincerely,

CROWN ASPHALT CORPORATION

Jay Mealey,
President

Accepted and agreed to
This ____day of January, 2000.

MCNIC PIPELINE & PROCESSING COMPANY

William Kraemer,
Vice President

CROWN ASPHALT RIDGE L.L.C.

By: Crown Asphalt Corporation       By: MCNIC Pipeline & Processing Company
    Its: Member                         Its: Member

---------------------------------   ------------------------------------<PAGE>

                                    Exhibit 4.2

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                 MORGAN STANLEY DEAN WITTER SELECT EQUITY TRUST
                        SELECT GLOBAL 30 PORTFOLIO 2000-2
                            REFERENCE TRUST AGREEMENT

          This Reference Trust Agreement dated April 3, 2000 between DEAN WITTER
REYNOLDS INC., as Depositor, and The Bank of New York, as Trustee, sets forth
certain provisions in full and incorporates other provisions by reference to the
document entitled "Morgan Stanley Dean Witter Select Equity Trust, Trust
Indenture and Agreement" (the "Basic Agreement") dated September 30, 1993 as
amended on December 30, 1997. Such provisions as are incorporated by reference
constitute a single instrument (the "Indenture").

                                WITNESSETH THAT:

          In consideration of the premises and of the mutual agreements herein
contained, the Depositor and the Trustee agree as follows:

                                       I.

                     STANDARD TERMS AND CONDITIONS OF TRUST

          Subject to the provisions of Part II hereof, all the provisions
contained in the Basic Agreement are herein incorporated by reference in their
entirety and shall be deemed to be a part of this instrument as fully and to the
same extent as though said provisions had been set forth in full in this
instrument except that the Basic Agreement is hereby amended as follows:

          A. The first sentence of Section 2.01 is amended to add the following
     language at the end of such sentence: "and/or cash (or a letter of credit
     in lieu of cash) with instructions to the Trustee to purchase one or more
     of such Securities which cash (or cash in an amount equal to the face
     amount of the letter of credit), to the extent not used by the Trustee to
     purchase such Securities within the 90-day period following the first
     deposit of Securities in the Trust, shall be distributed to Unit Holders on
     the Distribution Date next following such 90-day period or such earlier
     date as the Depositor and the Trustee determine".

          B. The first sentence of Section 2.06 is amended to add the following
     language after "Securities"))": "and/or cash (or a letter of credit in lieu
     of cash) with instructions to the Trustee to purchase one or more
     Additional Securities which cash (or cash in an amount equal to the face
     amount of the letter of credit), to the extent not used by the Trustee to
     purchase such Additional Securities within the 90-day period following the
     first deposit of Securities in the Trust, shall be distributed to Unit
     Holders on the Distribution Date next following such 90-day period or such
     earlier date as the Depositor and the Trustee determine".

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                                       -2-

          C. Article III, entitled "Administration of Trust", Section 3.01
     Initial Cost shall be amended as follows:

             Section 3.01 Initial Cost shall be amended to substitute the
          following language:

               Section 3.01. INITIAL COST The costs of organizing the Trust and
          sale of the Trust Units shall, to the extent of the expenses
          reimbursable to the Depositor provided below, be borne by the Unit
          Holders, PROVIDED, HOWEVER, that, to the extent all of such costs are
          not borne by Unit Holders, the amount of such costs not borne by Unit
          Holders shall be borne by the Depositor and, PROVIDED FURTHER,
          HOWEVER, that the liability on the part of the Depositor under this
          section shall not include any fees or other expenses incurred in
          connection with the administration of the Trust subsequent to the
          deposit referred to in Section 2.01. Upon notification from the
          Depositor that the primary offering period is concluded, the Trustee
          shall withdraw from the Account or Accounts specified in the
          Prospectus or, if no Account is therein specified, from the Principal
          Account, and pay to the Depositor the Depositor's reimbursable
          expenses of organizing the Trust and sale of the Trust Units in an
          amount certified to the Trustee by the Depositor. If the balance of
          the Principal Account is insufficient to make such withdrawal, the
          Trustee shall, as directed by the Depositor, sell Securities
          identified by the Depositor, or distribute to the Depositor Securities
          having a value, as determined under Section 4.01 as of the date of
          distribution, sufficient for such reimbursement. The reimbursement
          provided for in this section shall be for the account of the
          Unitholders of record at the conclusion of the primary offering period
          and shall not be reflected in the computation of the Unit Value prior
          thereto. As used herein, the Depositor's reimbursable expenses of
          organizing the Trust and sale of the Trust Units shall include the
          cost of the initial preparation and typesetting of the registration
          statement, prospectuses (including preliminary prospectuses), the
          indenture, and other documents relating to the Trust, SEC and state
          blue sky registration fees, the cost of the initial valuation of the
          portfolio and audit of the Trust, the initial fees and expenses of the
          Trustee, and legal and other out-of-pocket expenses related thereto,
          but not including the expenses incurred in the printing of preliminary
          prospectuses and prospectuses, expenses incurred in the preparation
          and printing of brochures and other advertising materials and any
          other selling expenses. Any cash which the Depositor has identified as
          to be used for reimbursement of expenses pursuant to this Section
          shall be reserved by the Trustee for such purpose and shall not be
          subject to distribution or, unless the Depositor otherwise directs,

<PAGE>

                                      -3-

          used for payment of redemptions in excess of the per-Unit amount
          allocable to Units tendered for redemption.

     D. The third paragraph of Section 3.05 is hereby amended to add the
following sentence after the first sentence thereof: "Depositor may direct the
Trustee to invest the proceeds of any sale of Securities not required for the
redemption of Units in eligible money market instruments selected by the
Depositor which will include only negotiable certificates of deposit or time
deposits of domestic banks which are members of the Federal Deposit Insurance
Corporation and which have, together with their branches or subsidiaries, more
than $2 billion in total assets, except that certificates of deposit or time
deposits of smaller domestic banks may be held provided the deposit does not
exceed the insurance coverage on the instrument (which currently is $100,000),
and provided further that the Trust's aggregate holding of certificates of
deposit or time deposits issued by the Trustee may not exceed the insurance
coverage of such obligations and U.S. Treasury notes or bills (which shall be
held until the maturity thereof) each of which matures prior to the earlier of
the next following Distribution Date or 90 days after receipt, the principal
thereof and interest thereon (to the extent such interest is not used to pay
Trust expenses) to be distributed on the earlier of the 90th day after receipt
or the next following Distribution Date."

     E. The first sentence of each of Sections 3.10, 3.11 and 3.12 is amended to
insert the following language at the beginning of such sentence, "Except as
otherwise provided in Section 3.13,".

     F. The following new Section 3.13 is added:

     Section 3.13. EXTRAORDINARY EVENT - SECURITY RETENTION AND VOTING. In the
event the Trustee is notified of any action to be taken or proposed to be taken
by holders of the securities held by the Trust in connection with any proposed
merger, reorganization, spin-off, split-off or split-up by the issuer of stock
or securities held in the Trust, the Trustee shall take such action or refrain
from taking any action, as appropriate, so as to insure that the securities are
voted as closely as possible in the same manner and in the same general
proportion as are the securities held by owners other than the Trust. If stock
or securities are received by the Trustee, with or without cash, as a result of
any merger, reorganization, spin-off, split-off or split-up by the issuer of
stock or securities held in the Trust, the Trustee at the direction of the
Depositor may retain such stock or securities in the Trust. Neither the
Depositor nor the Trustee shall be liable to any person for any action or
failure to take action with respect to this section.

     G. Section 1.01 is amended to add the following definition: (9) "Deferred
Sales Charge" shall mean any deferred sales charge payable in accordance with
the provisions of Section 3.14 hereof, as set forth in the prospectus for a
Trust. Definitions following this definition (9) shall be renumbered.

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                                      -4-

     H. Section 3.05 is hereby amended to add the following paragraph after the
end thereof: On each Deferred Sales Charge payment date set forth in the
prospectus for a Trust, the Trustee shall pay the account created pursuant to
Section 3.14 the amount of the Deferred Sales Charge payable on each such date
as stated in the prospectus for a Trust. Such amount shall be withdrawn from the
Principal Account from the amounts therein designated for such purpose.

     I. Section 3.06B(3) shall be amended by adding the following: "and any
Deferred Sales Charge paid".

     J. Section 3.08 shall be amended by adding the following at the end
thereof: "In order to pay the Deferred Sales Charge, the Trustee shall sell or
liquidate an amount of Securities at such time and from time to time and in such
manner as the Depositor shall direct such that the proceeds of such sale or
liquidation shall equal the amount required to be paid to the Depositor pursuant
to the Deferred Sales Charge program as set forth in the prospectus for a Trust.

     K. Section 3.14 shall be added as follows:

     Section 3.14. DEFERRED SALES CHARGE. If the prospectus for a Trust
specifies a Deferred Sales Charge, the Trustee shall, on the dates specified in
and as permitted by the prospectus, withdraw from the Income Account if such
account is designated in the prospectus as the source of the payments of the
Deferred Sales Charge, or to the extent funds are not available in that account
or if such account is not so designated, from the Principal Account, an amount
per Unit specified in the prospectus and credit such amount to a special,
non-Trust account maintained at the Trustee out of which the Deferred Sales
Charge will be distributed to the Depositor. If the Income Account is not
designated as the source of the Deferred Sales Charge payment or if the balances
in the Income and Principal Accounts are insufficient to make any such
withdrawal, the Trustee shall, as directed by the Depositor, either advance
funds, if so agreed to by the Trustee, in an amount equal to the proposed
withdrawal and be entitled to reimbursement of such advance upon the deposit of
additional monies in the Income Account or the Principal Account, sell
Securities and credit the proceeds thereof to such special Depositor's account
or credit Securities in kind to such special Depositor's Account. Such
directions shall identify the Securities, if any, to be sold or distributed in
kind and shall contain, if the Trustee is directed by the Depositor to sell a
Security, instructions as to execution of such sales. If a Unit Holder redeems
Units prior to full payment of the Deferred Sales Charge, the Trustee shall, if
so provided in the prospectus, on the Redemption Date, withhold from the
Redemption Price payment to such Unit Holder an amount equal to the unpaid
portion of the Deferred Sales Charge and distribute such amount to such special
Depositor's account or, if the Depositor shall purchase such Unit pursuant to
the terms of Section 5.02 hereof, the Depositor shall pay the Redemption Price
for such Unit less the unpaid portion of the Deferred Sales Charge. The
Depositor may at any time instruct the Trustee to dis-

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                                      -5-

tribute to the Depositor cash or Securities previously credited to the special
Depositor's account.

     L. The following new Section 3.15 is added:

     Section 3.15. FOREIGN EXCHANGE TRANSACTIONS; RECLAIMING FOREIGN TAXES.
(a) For any Trust holding Securities denominated in a currency other than U.S.
dollars, the Depositor shall direct the Trustee with respect to the
circumstances under which foreign exchange transactions are to be entered into
and calculations under this Indenture are to be made, in order to convert
amounts receivable in respect of the Securities in foreign currencies into U.S.
dollars.

     (b) The Trustee shall take such reasonable action as the Depositor shall
direct or, if not so directed, use reasonable efforts to reclaim or recoup any
amounts of non-U.S. tax paid by the Trust or withheld from income received by
the Trust to which the Trust may be entitled as a refund.

     M. The following paragraphs are inserted after the first paragraph in
Section 4.01:

     "With respect to foreign securities, each security listed on a securities
     exchange will be valued at the last closing sale price on the relevant
     stock exchange or if no such price exists at the closing offer price
     thereof.

     If the Trust holds securities denominated in a currency other than U.S.
     dollars, the evaluations shall be converted to U.S. dollars based, during
     the initial offering period, on the offering side of the relevant currency
     exchange rate, and, subsequent to such period, on the bid side of the
     relevant exchange rate, including the cost of a forward foreign exchange
     contract in the relevant currency to correspond to the Trustee's settlement
     requirement for redemption requests as quoted to the Trustee by one or more
     banks designated by the Depositor, unless the Security is in the form of an
     American depository share or receipt, in which case the evaluations shall
     be based upon the U.S. dollar prices in the market for American depository
     shares or receipts (unless the Trustee deems such prices inappropriate as a
     basis for valuation)."

     N. Reference to "Dean Witter Select Equity Trust" is replaced by "Morgan
Stanley Dean Witter Select Equity Trust".

<PAGE>

                                      -6-

                                       II.

                      SPECIAL TERMS AND CONDITIONS OF TRUST

     The following special terms and conditions are hereby agreed to:

     A. The Trust is denominated Morgan Stanley Dean Witter Select Equity
Trust Select Global 30 Portfolio 2000-2 (the "Select 30 Trust").

     B. The publicly traded stocks listed in Schedule A hereto are those
which, subject to the terms of this Indenture, have been or are to be
deposited in trust under this Indenture.

     C. The term, "Depositor" shall mean Dean Witter Reynolds Inc.

     D. The aggregate number of Units referred to in Sections 2.03
and 9.01 of the Basic Agreement is 24,971 for the Select 30 Trust.

     E. A Unit is hereby declared initially equal to 1/24,971.

     F. The term "In-Kind Distribution Date" shall mean June 12, 2001.

     G. The term "Record Dates" shall mean December 1, 2000, and July 2, 2001
and such other date as the Depositor may direct.

     H. The term "Distribution Dates shall mean December 15, 2000 and July 9,
2001 and such other date as the Depositor may direct.

     I. The term "Termination Date" shall mean July 2, 2001.

     J. The Depositor's Annual Portfolio Supervision Fee shall be a
maximum of $0.25 per 100 Units.

     K. The Trustee's Annual Fee as defined in Section 6.04 of the
Indenture shall be $0.80 per 100 Units.

     L. For a Unit  Holder to  receive  an  "in-kind"  distribution
during the life of the Trust,  such Unit  Holder  must  tender at least
25,000 Units for redemption. There is no minimum amount of Units that a
Unit Holder must tender in order to receive an  "in-kind"  distribution
on the In-Kind Date or in connection with a rollover.

     (Signatures and acknowledgments on separate pages)

<PAGE>

                                      -7-

          The Schedule of Portfolio  Securities  in the  prospectus  included in
     this Registration  Statement is hereby  incorporated by reference herein as
     Schedule A hereto.

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