AGREEMENT AMONG INITIAL STOCKHOLDERS AND SYN INC.


                THIS AGREEMENT, dated May 17, 1995, is made and entered into
among Empire Gas Corporation, a Missouri corporation ("Empire"),
Northwestern Growth Corporation, a South Dakota corporation ("NGC"), and SYN
Inc., a Delaware corporation ("SYN~), with respect to the following facts:

                A.       Empire currently is engaged in the business of
distributing and selling at retail liquified petroleum ("LP") gas and
appliances, and has a management experienced in the operation of such
business.

                B.       NGC is a wholly-owned subsidiary of Northwestern
Public Service Company ("NWPS") and has as one of its objectives the making
of investments that could benefit NWPS and its stockholders.

                C.       Empire and NGC, acting together, have made a
successful bid to acquire the LP gas distribution and appliance business of
Synergy Group Incorporated ("Synergy"; such acquisition being hereinafter
called the "Synergy Acquisition"), in what is planned to be the first Step
in the proposed development by Empire and NGC, on a team basis, of a
significant position in the LP gas distribution industry.  Empire and NGC
have contemplated, in their bidding for the Synergy Acquisition, that they
will rely principally on Empire for management expertise and on NGC to
provide or arrange the financing for the Synergy Acquisition, and that the
success of the Synergy Acquisition will depend in large measure upon the
cost savings and operating improvements expected to be achieved by having
Empire do the planning and management of the business of Synergy and its
subsidiaries, under the direction of the Board of Director of SYN.

                D.       Empire and NGC have caused SYN to be incorporated
to serve as the vehicle (directly or through subsidiaries to be created) for
making the Synergy Acquisition.

                E.       Empire and NGC, on behalf of SYN, are concluding
the negotiation of the definitive agreement (the "Synergy Acquisition
Agreement") for the Synergy Acquisition, and need to provide for (i) the
initial capitalization of SYN, (ii) certain loan financing for SYN, (iii)
the management of SYN and (iv) for certain matters pertaining to the
ownership of shares of stock of SYN.

                NOW THEREFORE, in consideration of the premises and the
agreements, exchanged herein, the parties hereto agree as follows:


                  ARTICLE 1: INITIAL CAPITALIZATION OF SYN;
                STOCK SUBSCRIPTIONS AND RESERVATIONS OF STOCK

                Section 1.01  Initial Authorized Stock of SYN.  SYN has been
incorporated by Empire and NGC with an initial authorized capitalization (as
set forth in Article FOURTH of SYN's Certificate of Incorporation, a true
and complete copy of which is attached hereto as Exhibit A), consisting of
100,000 shares of common stock, par value 1 cents per share (the "Common Stock";
and the 100,000 shares of Common Stock referred to herein shall only be
increased with the prior written agreement of Empire and NGC unless such
increased number of shares is to be issued in an arm's length transaction to
a party who is not affiliated with any of the parties to this Agreement),


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and 100,000 shares of preferred stock, par value 1 cent per share, issuable in
one or more series (the "Preferred Stock").  Prior to the consummation of
the Synergy Acquisition, SYN shall, and Empire and NGC shall cause SYN to,
take all action necessary to create and authorize the issuance of a series
of the Preferred Stock, namely, the Series A Cumulative Preferred Stock,
consisting of 70,500 shares, the terms of which shall be as set forth in
Exhibit B attached hereto, with such changes therein as the parties hereto
may approve before such series is created (the "Series A Preferred Stock").

                Section 1.02  Subscriptions and Option for Stock.  NGC has
previously purchased, and hereby subscribes for, stock of SYN, and NGC has
granted Empire an option to purchase certain shares of stock from NGC, as
follows:

                         (a)     SYN and NGC acknowledge that NGC has      
                purchased from SYN, and SYN has sold and issued to NGC,
                1,000 shares of Common Stock for a cash purchase price of
                $1,000.00 which has been paid by NGC to SYN, and that these
                shares are the only shares of stock of SYN that are
                currently outstanding.

                         (b)     NGC hereby subscribes for, and agrees to
                purchase from SYN, and SYN hereby agrees to sell and issue
                to NGC, an additional 71,500 shares of Common Stock for a
                cash purchase price of $71,500.00 to be paid at the time of
                such issuance, with this transaction to be consummated (the
                "Subscription Closing") at the First Closing, as defined in
                the Synergy Acquisition Agreement, unless an earlier time
                for the Subscription Closing is agreed to by the parties
                hereto.  The obligation of NGC under its subscription in
                this paragraph (b) is subject to the condition (unless
                waived by NGC) that NGC shall have been able to obtain the
                funds from the Permanent Financing or the Temporary
                Financing, as those terms are defined in the Synergy
                Acquisition Agreement, at or prior to the time of the
                Subscription Closing.

                         (c)     NGC hereby subscribes for, and agrees to
                purchase from SYN, and SYN hereby agrees to sell and issue
                to NGC, 68,000 shares of Series A Preferred Stock for a cash
                purchase price of $1,000 per share ($68,000,000.00 total),
                with this transaction to be consummated at the Subscription
                Closing.  The obligation of NGC under its subscription in
                this paragraph (c) is subject to the condition (unless
                waived by NGC) that NGC shall have been able to obtain the
                funds from the Permanent Financing or the Temporary
                Financing, as those terms are defined in the Synergy
                Acquisition Agreement, at or prior to the time of the
                Subscription Closing and that, at the time of the
                Subscription Closing, the First Closing (as defined in the
                Synergy Acquisition Agreement) is concurrently occurring or
                is reasonably assured of being consummated immediately
                thereafter.

                         (d)     Empire hereby subscribes for, and agrees to
                purchase from SYN, and SYN hereby agrees to issue and sell
                to Empire, 10,000 shares of Common Stock (which shall


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                represent 10% of the issued and outstanding Common Stock)
                for a cash purchase price of $10,000 to be paid at the time
                of such issuance, with this transaction to be consummated at
                the Subscription Closing.  The obligation of Empire under
                its subscription in this paragraph (d) is subject to the
                condition (unless waived by Empire) that NGC consummates its
                purchase of shares of Common Stock under paragraph (b) above
                in this Section 1.02 at the Subscription Closing.

                         (e)     NGC hereby grants to Empire an option to
                purchase from NGC, at a price of $1.00 per share, up to
                20,000 of the shares of Common Stock which shall represent
                20% of the issued and outstanding Common Stock, subject to
                NGC acquiring such shares pursuant to paragraph (b) above in
                this Section 1.02.  Such option may be exercised at any time
                after September 30, 1995 and prior to September 30, 1997, or
                the Determination Date (as defined in Section 1.04 herein),
                whichever is earlier, by Empire's giving written notice of
                such exercise to NGC.  After the giving of such notice, NGC
                shall assign and deliver to Empire the shares of Common
                Stock for which the stock option was exercised, as promptly
                as possible, but in any event within seven days, in exchange
                for Empire's payment to NGC of the purchase price for such
                shares; and the shares so assigned and delivered shall then
                be shares owned by Empire and shall be held by Empire
                subject to the terms of this Agreement.

                Section 1.03  Reservations of Stock for Issuance.  SYN
shall, and Empire and NGC shall cause SYN to, take all action necessary to
reserve for initial issuance, 17,500 shares of Common Stock and 2,500 shares
of Series A Preferred Stock to be issued to the Stockholders (as defined in
the Synergy Acquisition Agreement) at the Second Closing (also as defined in
the Synergy Acquisition Agreement), pursuant to the Synergy Acquisition
Agreement.

                Section 1.04  Common Stock Returns.  The following
provisions of this Section 1.04 apply in the event Empire exercises the
stock option granted to it in Section 1.02(d) herein:

                         (a)     The "Common Stock Return," as that term is
                used herein, shall be the number of shares of Common Stock
                of SYN which Empire hereby agrees to assign and deliver to
                NGC, without cost to NGC, in the event that the common
                equity value at a Determination Date (as defined below) is
                below levels specified for such date in subparagraph (iii)
                in this paragraph (a).  The Common Stock Return shall be set
                in accordance with the following formula:

                                 (i)     The Determination Date shall be the
                         date on which SYN is sold (meaning a sale of
                         substantially all of the assets of SYN and its
                         subsidiaries, the acquisition of SYN by another,
                         non-affiliated entity by merger or consolidation,
                         or the sale of partnership units or shares of stock
                         of SYN which entitle the holder thereof to cast at
                         least a majority of the votes entitled to be cast


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                         in the general election of directors of SYN or the
                         date on which the sale of partnership units or
                         shares of SYN's Common Stock is closed in an
                         underwritten public offering, for which the
                         partnership units or shares are registered under
                         the Securities Act of 1933, or the date on which
                         this Agreement expires or is terminated in
                         accordance with Section 7.02 herein, whichever of
                         the foregoing first occurs).

                                 (ii)    The value of the total outstanding
                         Common Stock of SYN on the Determination Date (the
                         "Value"), shall be determined by the parties hereto
                         on the basis of the sale price for SYN if the sale
                         of SYN is involved, or based upon the price to SYN
                         (or the selling stockholders if SYN is not the
                         seller) in the event an underwritten public
                         offering of partnership units or Common Stock of
                         SYN is involved, or on the basis of the fair market
                         value of the outstanding Common Stock of SYN in
                         every other event, as determined by an appraisal
                         firm or an investment banking firm selected by the
                         parties hereto, with such fair market value to be
                         determined on the basis of the value of SYN and its
                         subsidiaries as a whole, if sold as a going
                         concern.  In the event there is a combination of
                         one or more entities with SYN, the value of SYN
                         will be determined by either (x) a fair market
                         value appraisal or (y) in the event there is a
                         public offering within nine months after such
                         combination, the value shall be the initial price
                         to the public of the SYN shares of Common Stock or
                         partnership units in such public offering.

                                 (iii) For these purposes, "deemed
                         outstanding shares of Common Stock" shall be the
                         total of the number of shares of Common Stock
                         issued and outstanding, plus the number that would
                         be issued and outstanding if all outstanding stock
                         options, warrants, conversion rights and other
                         rights to acquire shares of Common Stock were
                         exercised, whether or not exercisable at the time. 
                         The number of shares of Common Stock of SYN
                         constituting the Common Stock Return shall be the
                         percentage of the deemed outstanding shares of
                         Common Stock of SYN as of the Determination Date,
                         determined on the basis of the following table and
                         paragraph (b) below, if applicable:


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Column A                         Column B              Column C

                         Percentage of deemed     Percentage of deemed
                         outstanding shares of    outstanding shares of
                         Common Stock of SYN      Common Stock of SYN
                         shall be 0% if the       shall be 7.5% if the
Fiscal Year of           Value as of the          Value as of the
SYN in which             Determination Date is    Determination Date is
Determination            at least the following   less than the following
Date occurs:             amount:                  amount:
______________           ______________________   _______________________

     1996                        $24,500,000              $22,250,000
     1997                        $30,000,000              $24,750,000
     1998                        $36,750,000              $27,500,000
     1999                        $45,000,000              $30,600,000
     2000                        $55,200,000              $34,000,000

     After 2000                  1.225 times the          1.1125 times the
                                 previous year's          previous year's
                                 amount                   amount

                (b)      If the Value as of the Determination Date is more
than the amount in Column C in Section 1.04(a)(iii) above, but less than the
amount in Column B therein, the percentage used to determine the Common
Stock Return shall be a figure between 7.5% and 0% which is in proportion to
what the Value is to the amounts in the two columns for the particular
Determination Date.

                Section 1.05  Acquisition for Investment.  Empire and NGC
each represent and warrant to the other, and to SYN, as follows: It has
(through its management personnel) such knowledge and experience in
financial and business matters that it is capable of evaluating the merits
and risks of its purchase of securities of SYN as provided for in this
Agreement; it is acquiring such securities, and will acquire them, for
investment and not with a view toward, or with any intention of,
distributing or selling any of the securities and it will not sell or offer
to sell or otherwise transfer any of the securities in violation of the
Securities Act of 1933, as amended.


                      ARTICLE 2: LOAN FINANCING FOR SYN

                NGC shall make a commercially reasonable effort to arrange
for SYN, or provide SYN with, loan financing for SYN, on a fully secured
basis, of up to $70,000,000 principal amount needed by SYN for the Synergy
Acquisition.


                  ARTICLE 3: LIMIT TO FINANCING OBLIGATIONS

                Neither Empire nor NGC, nor any of their affiliates, shall
have any obligation to provide, or arrange, financing for SYN other than as
expressly provided for in Articles 1 and 2 herein.


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                       ARTICLE 4: SYNERGY ACQUISITION

                Each of the parties hereto will make a commercially
reasonable effort in cooperation with the other parties hereto, to do those
things within its control to consummate the Synergy Acquisition in
accordance with the terms of, and subject to the conditions in, the Synergy
Acquisition Agreement.  Nothing in this Agreement or otherwise shall be
construed to give anyone who is not a party to this Agreement, whether under
a third party beneficiary legal doctrine or otherwise, a right to enforce
the provisions of this Article or to obtain relief for any failure to
perform in accordance with the requirements of this Article.


                        ARTICLE 5: MANAGEMENT OF SYN

                Section 5.01  At or before the First Closing (as defined in
the Synergy Acquisition Agreement), the parties hereto will enter into a
management agreement in substantially the form attached hereto as Exhibit C,
or with such changes therein as the parties hereto hereafter agree upon (the
"Management Agreement"), pursuant to which the planning and management of
the business of SYN subsequent to the Second Closing (as defined in the
Synergy Acquisition Agreement) will be conducted by Empire under the
direction of the Board of Directors of SYN, as provided therein.

                Section 5.02  Directors and Officers of SYN.

                         (a)     For purposes of this Agreement, "Control
                Period" means the period of time commencing on the date of
                this Agreement and continuing either (i) until this
                Agreement is terminated pursuant to Section 7.02 herein
                because of the termination of the Synergy Acquisition
                Agreement without the Synergy Acquisition having been
                completed or (ii) until a time after the First Closing, as
                defined in the Synergy Acquisition Agreement, when (A) the
                Control Period is terminated by agreement of the parties
                hereto, (B) NGC no longer owns a majority of the shares of
                Common Stock of SYN deemed to be outstanding (determined as
                provided in Section 1.04 herein), (C) Empire no longer owns
                at least 20% of the shares of Common Stock of SYN deemed to
                be outstanding or has an option to acquire at least that
                amount of shares, or (D) when SYN consummates an
                underwritten public offering of partnership units or shares
                of its Common Stock, registered under the Securities Act of
                1933, whichever of (A), (B), (C) or (D) first occurs.

                         (b)     Throughout the Control Period, NGC and
                Empire shall vote their voting shares of stock of SYN that
                are capable of being voted, and will otherwise use their
                respective commercially reasonable efforts, to carry out the
                following:

                                 (i)     the Board of Directors of SYN shall
                consist of five members, three of whom shall be nominees of
                NGC (the "NGC Positions") and two of whom shall be nominees
                of Empire (the "Empire Positions"); and any vacancies
                occurring in the NGC Positions will be promptly filled with
                nominees of NGC and any vacancies occurring in the Empire
                Positions will be promptly filled with nominees of Empire.


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                                 (ii)    The officers of SYN shall include
                at all times a Chairman of the Board and a Vice Chairman of
                the Board, who will be persons nominated by NGC, and a
                President and Chief Executive Officer, who will be Paul S.
                Lindsey, Jr., and a Secretary, who will be a person
                nominated by Empire.  The authority and duties of such
                officers shall be as set forth in the by-laws of SYN, a true
                and complete copy of which as in effect on the date hereof
                is attached hereto as Exhibit D.

                         (c)     To initiate compliance with preceding
                paragraph (b), Empire and NGC have caused the following
                persons to be elected to the positions with SYN indicated by
                their names, to serve for the period provided in the by-laws
                of SYN:

                                Chairman of the Board and director - Merle
                                 D. Lewis (an NGC nominee for such
                                 positions);

                                 Vice Chairman of the Board and director
                                 Richard R. Hylland (an NGC nominee for such
                                 positions);

                                 President and Chief Executive Officer and
                                 director - Paul S. Lindsey, Jr. (an Empire
                                 nominee as to the position of director);

                                 Secretary and director - Douglas A. Brown
                                 (an Empire nominee for such positions);


                with the fifth member of the Board of Directors of SYN (one
                of the NGC Positions) to be nominated by NGC, and elected,
                at a future time when NGC has selected the nominee for such
                position.


            ARTICLE 6: DISPOSITION OF SYN STOCK BY EMPIRE OR NGC


                Section 6.01  Permitted Dispositions.

                         (a)     NGC may at any time or from time to time
                transfer any of the securities issued by SYN which NGC may
                own at any time to NWPS or any wholly-owned subsidiary of
                NWPS, provided that notice of such transfer is given to the
                other parties to this Agreement and that the transferee
                becomes a party to this Agreement with respect to the
                securities so transferred, but all of such transferees and
                NGC shall collectively act, and be treated, as a single
                entity with NGC acting as their representative for purposes
                of this Agreement.

                         (b)     Empire may at any time and from time to
                time transfer any of the securities issued by SYN which


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                Empire may own at any time to any affiliated party, provided
                that notice of such transfer is given to the other parties
                to this Agreement and the transferee becomes a party to this
                Agreement with respect to the securities so transferred, but
                all such transferees and Empire shall collectively act, and
                be treated, as a single entity with Empire acting as their
                representative for purposes of this Agreement.

                Section 6.02  Rights of First Refusal

                         (a)     Except as permitted by Section 1.04 and
                Section 6.01(b) herein, so long as the Management Agreement
                is in effect, Empire will not sell or otherwise dispose of
                any shares of Common Stock of SYN, or any other securities
                convertible into such shares, to any party without first
                offering the same for sale to NGC in writing on the same
                terms as are offered to or by the other party (with full
                disclosure of such terms to NGC) and allowing not less than
                30 days after its receipt of the offer for NGC to accept the
                offer; and if such offer is accepted by NGC, NGC shall have
                90 days in which to complete the purchase on such terms.

                         (b)     Except as permitted by Section 1.02(e) and
                Section 6.01(a) herein, so long as the Management Agreement
                is in effect, NGC will not sell or otherwise dispose of any
                shares of Common Stock of SYN, or any other securities
                convertible into such shares, to any party without first
                offering the same for sale to Empire in writing on the same
                terms as are offered to or by the other party (with full
                disclosure of such terms to Empire) and allowing Empire not
                less than 30 days after its receipt of the offer for Empire
                to accept the offer, and if such offer is accepted by
                Empire, Empire shall have 90 days in which to complete the
                purchase on such terms, but if Empire declines such offer,
                then Empire shall have the right to participate on a pro
                rata basis in the sale of such shares by NGC.


                          ARTICLE 7: MISCELLANEOUS

                Section 7.01  Restrictive Legend.  Each certificate issued
by SYN to evidence shares of Common Stock, or securities convertible into
such shares, owned by either Empire or NGC shall be endorsed with the
following legend:

                         "The shares represented by this certificate are
                         subject to the Agreement among the Corporation and
                         its Initial Stockholders, dated as of May 17, 1995,
                         as the same may be amended, on file with the
                         issuing Corporation at its principal business
                         office and may be transferred or otherwise disposed
                         of only in accordance therewith."

                Section 7.02  Term of this Agreement.  This Agreement, if
not sooner terminated by agreement of the parties hereto or pursuant to the
next sentence, shall terminate when the Control Period terminates.  In the
event the Synergy Acquisition Agreement is terminated without the Synergy


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                Action having been completed, the parties hereto will
liquidate and dissolve SYN as promptly as possible when all obligations of
SYN under, or with respect to, the Synergy Acquisition Agreement have been
discharged or provided for; and this Agreement shall then automatically
terminate.

                Section 7.03  Notices.  All notices and other communications
hereunder shall be in writing and shall be deemed to have been given (a)
when delivered in person (b) one business day after deposit with a
nationally recognized overnight courier service (c) two business days after
being deposited in the United States mail, postage prepaid, first class,
registered or certified mail, or (d) the business day on which it is sent
and received by facsimile as follows:

                (i)      If to SYN, to:

                                 SYN Inc.
                                 c/o Northwestern Growth Corporation
                                 33 Third Street, S.E.
                                 Huron, South Dakota 57350
                                 Fax No. (605) 353-8286

                                 Attention: Richard R. Hylland, President

                         with a copy to Empire, addressed and sent to it at
                         the place required under this Agreement for giving
                         notice to Empire

                (ii)     If to Empire, to:

                                 Empire Gas Corporation
                                 P.O. Box 303
                                 1700 South Jefferson
                                 Lebanon, Missouri 65536
                                 Fax No. (417) 532-8529

                                 Attention: Paul S Lindsey, Jr., President

                (iii) If to NGC, to:

                                 Northwestern Growth Corporation
                                 33 Third Street, S.E.
                                 Huron, South Dakota 57350
                                 Fax No. (605) 353-8286

                                 Attention: Richard R. Hylland, President

                Section 7.04  Section 351 of the Code.  Each of the parties
hereto agrees to comply with the requirements of Section 6.28 of the Synergy
Acquisition Agreement, both with respect to the transaction referred to
therein and with respect to any transaction under this Agreement to the
extent necessary to assure the result under Section 351 of the Internal
Revenue Code of 1986, as amended, for the transaction referred to in such
Section 6.28.

                Section 7.05  Captions.  The captions in this Agreement are
included for convenience of reference only and shall be ignored in the
construction and interpretation of this Agreement.


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                Section 7.06  Governing Law.  This Agreement shall be
construed in accordance with and governed by the internal laws of the State
of Delaware without regard to the choice of law principles thereof.

                Section 7.07  Counterparts.  Execution of separate copies of
this Agreement by each or some of the several parties hereto shall have the
same force and effect as though all such parties had executed the original
of this Agreement.  Further, the parties hereto may execute several
counterparts of this Agreement, all of which shall constitute but one and
the same agreement.
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                IN WITNESS WHEREOF, each of the parties hereto have caused
this Agreement to be executed in its name as of the date first above
written.

                                         EMPIRE GAS CORPORATION
                                         By  /s/ Paul S. Lindsey, Jr.
                                             ________________________
                                             President


                                         NORTHWESTERN GROWTH CORPORATION
                                         By  /s/ Richard R. Hylland
                                             ______________________
                                             President


                                         SYN INC.


                                         By  /s/ Paul S. Lindsey, Jr.
                                             ________________________
                                         Title: _____________________

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Exhibit         Document
_______         ________

   A            Syn Inc. Certificate of Incorporation
   B            Series A Preferred Stock
   C            Management Agreement
   D            Syn Inc. By-laws