NORTHWESTERN PUBLIC SERVICE CO
424B2, 1995-08-17
ELECTRIC & OTHER SERVICES COMBINED
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<PAGE>
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED AUGUST 16, 1995)

                                1,200,000 SHARES
                      NORTHWESTERN PUBLIC SERVICE COMPANY
                         COMMON STOCK, $3.50 PAR VALUE
                                  ------------

ALL  OF THE SHARES OF COMMON STOCK OFFERED HEREBY ARE BEING SOLD BY THE COMPANY.
THE COMPANY'S COMMON STOCK IS LISTED ON THE
       NEW YORK STOCK EXCHANGE. ON AUGUST 16, 1995, IMMEDIATELY PRIOR  TO
       THE  DETERMINATION  OF  THE PUBLIC  OFFERING  PRICE  OF THE
              SHARES OFFERED HEREBY, THE LAST REPORTED SALE  PRICE
              OF  THE COMMON  STOCK ON        THE NEW YORK
                      STOCK  EXCHANGE  WAS  $26  1/8   PER
                                     SHARE.

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

THESE  SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
   EXCHANGE COMMISSION  OR  ANY STATE  SECURITIES  COMMISSION NOR  HAS  THE
     SECURITIES   AND  EXCHANGE   COMMISSION  OR   ANY  STATE  SECURITIES
       COMMISSION PASSED  UPON  THE  ACCURACY  OF  ADEQUACY  OF  THIS
           PROSPECTUS SUPPLEMENT OR THE PROSPECTUS TO WHICH IT
                  RELATES.   ANY   REPRESENTATION   TO  THE
                          CONTRARY IS A CRIMINAL OFFENSE.

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

                             PRICE $26 1/8 A SHARE

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

<TABLE>
<CAPTION>
                                                                       UNDERWRITING
                                                  PRICE TO             DISCOUNTS AND            PROCEEDS
                                                   PUBLIC             COMMISSIONS (1)        TO COMPANY (2)
                                            ---------------------  ---------------------  ---------------------
<S>                                         <C>                    <C>                    <C>
PER SHARE.................................         $26.125                 $1.00                 $25.125
TOTAL (3).................................       $31,350,000            $1,200,000             $30,150,000
<FN>
---------
    (1)  THE COMPANY  HAS AGREED TO INDEMNIFY  THE UNDERWRITERS AGAINST  CERTAIN
         LIABILITIES, INCLUDING LIABILITIES UNDER THE SECURITIES ACT OF 1933, AS
         AMENDED.
    (2)    BEFORE  DEDUCTING  EXPENSES  PAYABLE  BY  THE  COMPANY,  ESTIMATED AT
         $700,000.
    (3)  THE  COMPANY HAS  GRANTED TO  THE UNDERWRITERS  AN OPTION,  EXERCISABLE
         WITHIN  30 DAYS OF THE  DATE HEREOF, TO PURCHASE  UP TO AN AGGREGATE OF
         180,000 ADDITIONAL SHARES OF COMMON STOCK  AT THE PRICE TO PUBLIC  LESS
         UNDERWRITING  DISCOUNTS  AND COMMISSIONS  FOR  THE PURPOSE  OF COVERING
         OVER-ALLOTMENTS, IF ANY.  IF THE UNDERWRITERS  EXERCISE SUCH OPTION  IN
         FULL, THE TOTAL PRICE TO PUBLIC, UNDERWRITING DISCOUNTS AND COMMISSIONS
         AND   PROCEEDS  TO   COMPANY  WILL   BE  $36,052,500,   $1,380,000  AND
         $34,672,500, RESPECTIVELY. SEE "UNDERWRITING."
</TABLE>

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

    THE COMMON STOCK IS OFFERED, SUBJECT TO PRIOR SALE, WHEN, AS AND IF ACCEPTED
BY THE  UNDERWRITERS  AND  SUBJECT  TO APPROVAL  OF  CERTAIN  LEGAL  MATTERS  BY
WINTHROP,  STIMSON,  PUTNAM  &  ROBERTS, COUNSEL  FOR  THE  UNDERWRITERS.  IT IS
EXPECTED THAT DELIVERY OF THE COMMON STOCK  WILL BE MADE ON OR ABOUT AUGUST  21,
1995 AT THE OFFICE OF MORGAN STANLEY & CO. INCORPORATED, NEW YORK, N.Y., AGAINST
PAYMENT THEREFOR IN NEW YORK FUNDS.

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

MORGAN STANLEY & CO.                                    PAINEWEBBER INCORPORATED
       INCORPORATED

AUGUST 16, 1995
<PAGE>
    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK AT
LEVELS ABOVE  THOSE WHICH  MIGHT  OTHERWISE PREVAIL  IN  THE OPEN  MARKET.  SUCH
TRANSACTIONS   MAY  BE  EFFECTED  ON  THE   NEW  YORK  STOCK  EXCHANGE,  IN  THE
OVER-THE-COUNTER MARKET OR  OTHERWISE. SUCH  STABILIZING, IF  COMMENCED, MAY  BE
DISCONTINUED AT ANY TIME.

    NO  DEALER,  SALESMAN  OR  OTHER  PERSON HAS  BEEN  AUTHORIZED  TO  GIVE ANY
INFORMATION OR  TO  MAKE ANY  REPRESENTATIONS,  OTHER THAN  THOSE  CONTAINED  OR
INCORPORATED  BY REFERENCE  IN THIS  PROSPECTUS SUPPLEMENT  AND THE ACCOMPANYING
PROSPECTUS, IN CONNECTION WITH THE  OFFERING MADE BY THIS PROSPECTUS  SUPPLEMENT
AND  THE  ACCOMPANYING PROSPECTUS,  AND IF  GIVEN OR  MADE, SUCH  INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY
OR THE UNDERWRITERS. THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING  PROSPECTUS
DO  NOT CONSTITUTE AN OFFER OR A  SOLICITATION BY ANY PERSON IN ANY JURISDICTION
IN WHICH IT IS UNLAWFUL FOR SUCH  PERSON TO MAKE SUCH AN OFFER OR  SOLICITATION.
THE  DELIVERY OF THIS  PROSPECTUS SUPPLEMENT AND  THE ACCOMPANYING PROSPECTUS AT
ANY TIME DOES NOT IMPLY  THAT THE INFORMATION HEREIN IS  CORRECT AS OF ANY  TIME
SUBSEQUENT  TO  THE  DATE  OF THE  PROSPECTUS  SUPPLEMENT  AND  THE ACCOMPANYING
PROSPECTUS.

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

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               PAGE
<S>                                                                                                          <C>
                                                PROSPECTUS SUPPLEMENT
Prospectus Supplement Summary..............................................................................        S-3
The Company................................................................................................        S-3
The Offering...............................................................................................        S-4
Summary Financial Information..............................................................................        S-5
Use of Proceeds............................................................................................        S-6
Supplemental Description of the Common Stock...............................................................        S-6
Underwriting...............................................................................................        S-6

                                                      PROSPECTUS

Available Information......................................................................................          1
Documents Incorporated by Reference........................................................................          1
The Company................................................................................................          2
Acquisition of Synergy Group Incorporated..................................................................          5
Northwestern Public Service Company and Synergy Group Incorporated Pro Forma Financial Information.........         10
The NWPS Trusts............................................................................................         18
Use of Proceeds............................................................................................         19
Ratio of Earnings to Fixed Charges and Earnings to Combined Fixed Charges and Preferred Dividends..........         19
Description of the Mortgage Bonds..........................................................................         20
Description of the Subordinated Debt Securities............................................................         31
Description of the Preferred Securities....................................................................         39
Description of the Guarantees..............................................................................         40
Description of the Common Stock............................................................................         42
Legal Opinions.............................................................................................         44
Experts....................................................................................................         45
Plan of Distribution.......................................................................................         45
</TABLE>

                                      S-2
<PAGE>
                         PROSPECTUS SUPPLEMENT SUMMARY

    THE  FOLLOWING  SUMMARY  IS QUALIFIED  IN  ITS  ENTIRETY BY,  AND  SHOULD BE
CONSIDERED  IN  CONJUNCTION  WITH,  THE  INFORMATION  AND  FINANCIAL  STATEMENTS
APPEARING   ELSEWHERE  IN  THIS  PROSPECTUS   SUPPLEMENT  AND  THE  ACCOMPANYING
PROSPECTUS AND THE DOCUMENTS INCORPORATED THEREIN BY REFERENCE.

                                  THE COMPANY

    The  principal  business  of   Northwestern  Public  Service  Company   (the
"Company") is energy distribution. The Company is engaged in providing regulated
electric  and natural  gas service  in South Dakota  and natural  gas service in
Nebraska. The Company serves approximately 54,900 electric customers and  75,000
gas  customers  representing  a  diverse  mix  of  residential,  commercial  and
industrial customers. In  addition, the  Company has  investments in  nonutility
businesses  and has recently acquired  Synergy Group Incorporated ("Synergy"), a
major propane  distribution  company.  See "The  Company"  and  "Acquisition  of
Synergy Group Incorporated" in the accompanying Prospectus.

    The   Company's  electric  business  generates,  transmits  and  distributes
electricity to over 100 communities in eastern South Dakota. In 1994, 46% of the
Company's total operating  revenues were from  the sale of  electric energy.  At
December  31,  1994,  the  aggregate  capacity  of  all  Company-owned  electric
generating units was  309,000 kilowatts  ("kw"), consisting of  202,000 kw  from
jointly-owned  baseload plants and  107,000 kw from  internal combustion turbine
and diesel  units used  primarily for  peaking purposes.  All of  the  Company's
baseload  plants  are fueled  by coal.  The  Company has  maintained competitive
electric rates  when compared  to neighboring  utilities and  has a  competitive
electric  baseload  generating production  cost, which  includes fuel  and plant
operating expenses, of less than 1.5 CENTS per kilowatt hour.

    The Company's  natural gas  business purchases,  transports and  distributes
natural  gas to over 50 communities in eastern South Dakota and 4 communities in
central Nebraska. In 1994,  40% of the Company's  total operating revenues  were
from the sale of natural gas. The Company purchases gas supply from more than 20
domestic  and Canadian suppliers and transports  natural gas supply through five
pipelines. Gas  agreements provide  for firm  deliverable pipeline  capacity  of
approximately  98,900  million  british  thermal  units  ("MMBTU")  per  day. To
supplement firm gas supplies,  the Company owns six  propane-air plants and  has
contracts for underground natural gas storage services. Over the last five years
the  Company  has  expanded its  gas  distribution  operations to  serve  29 new
communities in South Dakota.

    The Company's business strategy is summarized by three primary objectives:

    - To enhance the Company's competitive  position in its energy  distribution
      businesses;

    - To   expand  energy  sales  and  markets  with  value-added  services  for
      customers; and

    - To provide earnings  and dividend growth  and increased shareholder  value
      through  its energy distribution businesses and investment and acquisition
      activities.

By enhancing the competitive position of its core electric and gas  distribution
businesses  and expanding its energy sales  and markets, the Company believes it
will position itself to be  successful in the increasingly competitive  electric
and  gas distribution  businesses anticipated  over the  next several  years. To
supplement growth strategies  in its  electric and natural  gas businesses,  the
Company  also plans  to seek new  investment and  acquisition opportunities that
have demonstrable growth potential.  The primary focus  of these investment  and
acquisition  activities  is  targeted  in  energy  distribution  businesses. The
Company also  plans  to  pursue  opportunities  in  non-energy  businesses  that
complement  its  existing  operations  and  provide  the  capability  to enhance
shareholder value.

    On  August  15,  1995,  the  Company  acquired  Synergy,  a  retail  propane
distributor  serving over 200,000  customers from 152 locations  in 23 states in
the eastern and south  central regions of the  U.S. See "Acquisition of  Synergy
Group    Incorporated"   in   the   accompanying   Prospectus.   In   accordance

                                      S-3
<PAGE>
with  its  strategic  plan,  the  Company  believes  that  the  Synergy  propane
distribution  operations are complementary to the Company's electric and natural
gas businesses.  Propane is  the  nation's fourth  largest energy  source  after
electricity,  natural gas and  fuel oil. The acquisition  price paid for Synergy
was $137.5  million  cash  (subject to  certain  post-closing  adjustments)  and
certain  securities of  the Company's  acquisition subsidiary.  The Company sold
certain Synergy properties to  an unrelated third party  which reduced the  cash
portion  of the acquisition price to approximately $100 million. The Company has
executed a management agreement with  Empire Gas Corporation ("Empire Gas")  for
the  joint management of the properties after the acquisition. Empire Gas is the
nation's eleventh  largest  retail  propane  distributor. As  a  result  of  the
acquisition  and the  third party  sale, the  Company's total  assets consist of
approximately 65% electric  and gas distribution,  25% propane distribution  and
10% marketable securities and other diversified investments.

    The  Company's principal  executive offices are  located at  33 Third Street
S.E., Huron,  South  Dakota  57350.  The Company's  telephone  number  is  (605)
352-8411.

                                  THE OFFERING

<TABLE>
<S>                                      <C>
Common Shares offered..................  1,200,000 shares (1)
Common Shares to be outstanding after
the offering...........................  Approximately 8,877,232 shares (1)
Price Range (January 1, 1995 through
August 15, 1995).......................  $25-28 1/4
Current Indicated Annual Dividend......  $1.70 per share
Use of Proceeds........................  The  net proceeds will be  used to repay short-term
                                         debt incurred in connection  with a portion of  the
                                         financing   for  the  Company's  acquisition  of  a
                                         propane distribution company.
NYSE Symbol............................  NPS
<FN>
------------------------
(1)  Does not include the Underwriters' option to purchase up to an aggregate of
     180,000 additional shares.
</TABLE>

                                      S-4
<PAGE>
                         SUMMARY FINANCIAL INFORMATION
            (in thousands, except percentages and per share amounts)

    The financial information presented below should be read in conjunction with
the Company's historical financial  statements and the  notes thereto which  are
incorporated  by reference herein and the pro forma financial statements and the
notes thereto included in the  accompanying Prospectus. The pro forma  financial
information contained in the right column, reflecting the acquisition of Synergy
and  related matters, was prepared  solely to comply with  Regulation S-X of the
Securities and Exchange Commission. The pro forma financial information is based
on the assumptions and adjustments set forth under "Northwestern Public  Service
Company  and Synergy Group Incorporated Pro  Forma Financial Information" in the
accompanying Prospectus.

<TABLE>
<CAPTION>
                                                                                                                PRO FORMA (1)
                                                                                                           ------------------------
                                                                                                  SIX                        SIX
                                                                                                MONTHS                     MONTHS
                                                                   YEAR ENDED DECEMBER 31,       ENDED      YEAR ENDED      ENDED
                                                                 ----------------------------  JUNE 30,    DECEMBER 31,   JUNE 30,
                                                                   1992      1993      1994      1995          1994       1995 (2)
                                                                 --------  --------  --------  ---------   ------------   ---------
<S>                                                              <C>       <C>       <C>       <C>         <C>            <C>
INCOME STATEMENT DATA
  Revenues.....................................................  $119,197  $153,257  $157,266   $90,862      $256,634      $140,374
  Operating income.............................................    24,809    27,246    30,368    19,438        37,985        27,313
  Net income...................................................    13,721    15,191    15,440    10,151        17,463        16,220
  Net income available for common stock........................    13,578    15,070    15,320    10,092        15,300        15,139
  Earnings per share...........................................      1.77      1.96      2.00      1.31          1.74          1.72
  Dividends paid per common share..............................      1.59      1.63      1.67      0.85          1.67          0.85
  Weighted average shares outstanding..........................     7,677     7,677     7,677     7,677         8,805         8,805
</TABLE>

<TABLE>
<CAPTION>
                                                                                                      AS OF JUNE 30, 1995
                                                                                              -----------------------------------
                                                                                                                   PRO
                                                                                               ACTUAL             FORMA
                                                                                              --------           --------
<S>                                                                                           <C>       <C>      <C>       <C>
BALANCE SHEET DATA:
  Assets....................................................................................  $366,148           $492,448
                                                                                              --------           --------
                                                                                              --------           --------
  Capitalization Summary
    Long-term debt (including current maturities)...........................................  $129,195   51.1%   $182,899   50.6%
    Company-Obligated Mandatorily Redeemable Preferred Securities of Subsidiary Trust (3)...     --      --        24,212    6.7%
    Cumulative preferred stock (including portion to be redeemed within one year)...........     2,610    1.0       2,610    0.7%
    Common Stock Equity
    Common stock............................................................................    26,870   --        31,179   --
    Additional paid-in capital..............................................................    29,923   --        56,398   --
    Retained earnings.......................................................................    58,939   --        58,939   --
    Unrealized gain on investments, net.....................................................     5,110   --         5,110   --
                                                                                              --------           --------
                                                                                              $120,842   47.9    $151,626   42.0
                                                                                              --------  ------   --------  ------
      Total.................................................................................  $252,647  100.0%   $361,347  100.0%
                                                                                              --------  ------   --------  ------
                                                                                              --------  ------   --------  ------
<FN>
------------------------
(1)  The pro  forma  financial  information  does not  purport  to  present  the
     financial  position  or  results  of  operations  of  the  Company  had the
     acquisition of Synergy actually been  completed as of the dates  indicated.
     In  addition,  the  pro  forma  financial  information  is  not necessarily
     indicative of future results of operations.
(2)  The results of operations of Synergy for the six months ended June 30, 1995
     are not indicative of a full year's results of operations.
(3)  As described in  the accompanying  Prospectus, all  of the  assets of  NWPS
     Capital,   the  subsidiary  trust,  are   approximately  $33.5  million  of
     Subordinated Debt Securities of the Company  which bear interest at a  rate
     of  8  1/8% per  annum,  based on  the  issuance of  1.3  million Preferred
     Securities. Pro Forma amounts shown in the table reflect the portion of the
     estimated net proceeds of the offering of Preferred Securities assumed  for
     purposes  of preparing the Pro Forma Financial Information used to fund the
     acquisition of Synergy.
</TABLE>

                                      S-5
<PAGE>
                                USE OF PROCEEDS

    The net proceeds from  the sale of  the Common Stock will  be used to  repay
short-term  debt incurred in connection with a portion of the financing obtained
to fund the  acquisition of  Synergy, including certain  transaction costs.  See
"Use of Proceeds" in the accompanying Prospectus.

                  SUPPLEMENTAL DESCRIPTION OF THE COMMON STOCK

PRICE RANGE OF COMMON STOCK AND DIVIDEND INFORMATION

    The  Common Stock of  the Company is  listed on the  New York Stock Exchange
(NYSE). The  ticker symbol  is "NPS",  although it  is frequently  presented  as
"NowestPS" or "NWPS" in various financial publications. The following table sets
forth,  for  the indicated  periods,  the price  range  of the  Common  Stock as
reported on  the  NYSE  Composite  Tape.  As of  August  14,  1995,  there  were
approximately  8,500  record holders  of the  Company's Common  Stock (7,677,232
Shares of Common Stock outstanding).

<TABLE>
<CAPTION>
                                                              PRICE PER SHARE     CASH
                                                              ---------------   DIVIDENDS
                                                               HIGH      LOW    PER SHARE
                                                              -------    ----   ---------
<S>                                                           <C>        <C>    <C>
1993
-----------------------------------------------------------
  First Quarter............................................   $29 1/2    $26 1/4   $      .405
  Second Quarter...........................................   31 1/2     28 3/4          .405
  Third Quarter............................................   33 1/2     29 1/4          .405
  Fourth Quarter...........................................   32 1/2     28 1/2          .415
1994
-----------------------------------------------------------
  First Quarter............................................   $29        $26             .415
  Second Quarter...........................................   29 5/8      26             .415
  Third Quarter............................................   29 3/8     27 1/2          .415
  Fourth Quarter...........................................   28 7/8     24 1/2          .425
1995
-----------------------------------------------------------
  First Quarter............................................   27 3/8     25 1/4          .425
  Second Quarter...........................................   28 3/8      25             .425
  Third Quarter (through August 15, 1995)..................   26 7/8     25 1/4
</TABLE>

    The last reported sale price of the  Common Stock on the NYSE on August  15,
1995 was $26 1/8 per share.

    The  Company has  paid cash  dividends on  its Common  Stock in  each fiscal
quarter since 1947. The  payment of dividends  in the future  is subject to  the
Company's  earnings  and  financial  condition and  such  other  factors  as the
Company's Board of Directors may  deem relevant. In addition, certain  covenants
in  the  debt  instruments  of  the  Company's  subsidiaries  limit  the amounts
available  for  dividends.  See  "Description  of  the  Common  Stock"  in   the
accompanying Prospectus.

                                  UNDERWRITING

    Under  the terms and subject to the conditions contained in the Underwriting
Agreement dated  the  date hereof  (the  Underwriting Agreement),  each  of  the
Underwriters  named  below,  for  whom Morgan  Stanley  &  Co.  Incorporated and
PaineWebber Incorporated are acting as representatives (the

                                      S-6
<PAGE>
"Representatives"), have  severally  agreed to  purchase,  and the  Company  has
agreed  to sell to  them, severally, the  respective number of  shares of Common
Stock set forth opposite their respective names below:

<TABLE>
<CAPTION>
                                                                                      NUMBER OF
NAME                                                                                   SHARES
-----------------------------------------------------------------------------------  -----------
<S>                                                                                  <C>
Morgan Stanley & Co. Incorporated..................................................      450,000
PaineWebber Incorporated...........................................................      450,000
Dain Bosworth Incorporated.........................................................       50,000
Dean Witter Reynolds Inc...........................................................       50,000
First of Michigan Corporation......................................................       50,000
NatWest Securities Limited.........................................................       50,000
Piper Jaffray Inc..................................................................       50,000
Prudential Securities Incorporated.................................................       50,000
                                                                                     -----------
    Total..........................................................................    1,200,000
                                                                                     -----------
                                                                                     -----------
</TABLE>

    The Underwriting  Agreement provides  that the  obligations of  the  several
Underwriters  to pay for and accept delivery  of the Common Stock offered hereby
are subject to  the approval  of certain  legal matters  by its  counsel and  to
certain other conditions. The Underwriters are committed to take and pay for all
of   the  Common  Stock  offered  hereby   (other  than  those  covered  by  the
Underwriters' over-allotment  option described  below) if  any such  shares  are
taken.

    The  Underwriters propose to offer part of  the Common Stock directly to the
public at the public offering price set forth on the cover page hereof and  part
to certain dealers at a price that represents a concession not in excess of $.60
per  share of  Common Stock.  The Underwriters may  allow, and  such dealers may
reallow, a  concession  of $.10  per  share of  Common  Stock to  certain  other
dealers.

    The  Company  has  agreed  to  indemnify  the  Underwriters  against certain
liabilities, including liabilities under the Securities Act of 1933, as amended.

    The Company has granted  to the Underwriters an  option, exercisable for  30
days  from  the  date  of  this Prospectus  Supplement,  to  purchase  up  to an
additional 180,000 shares of Common Stock at the public offering price set forth
on the cover page hereof (minus, if  such additional shares of Common Stock  are
sold  after the  date fixed  for the  determination of  stockholders entitled to
receive the next dividend payable on shares of Common Stock, an amount equal  to
such  dividend per share of such additional shares), less underwriting discounts
and commissions.  The  Underwriters may  exercise  such option  solely  for  the
purpose  of covering over-allotments, if any, incurred in the sale of the Common
Stock.

    The Company has  agreed in  the Underwriting  Agreement not  to directly  or
indirectly  (1) offer, pledge, sell, contract or otherwise dispose of any Common
Stock or any securities convertible into or exchangeable for Common Stock or (2)
enter into any swap or  similar agreement that transfers,  in whole or in  part,
the  economic risk  of ownership of  Common Stock, whether  any such transaction
described in clause (1) or (2) is to  be settled by delivery of Common Stock  or
other  securities, in cash or otherwise, for a  period of 90 days after the date
of this  Prospectus Supplement,  without  the prior  written consent  of  Morgan
Stanley  & Co. Incorporated,  provided that the  Company may during  such 90 day
period issue shares under its dividend reinvestment, customer stock purchase and
other plans.

    Certain of  the Underwriters  engage in  (or in  the future  may engage  in)
transactions  with, and provide  services for, the Company  or its affiliates in
the ordinary course of business.  Morgan Stanley & Co. Incorporated  represented
Synergy  in connection with the acquisition  of Synergy by the Company described
under "Acquisition of Synergy Group  Incorporated" included in the  accompanying
Prospectus.

                                      S-7
<PAGE>
    NatWest Securities Limited ("NatWest"), a United Kingdom broker-dealer and a
member  of the Securities Futures Authority Limited, has agreed that, as part of
the distribution of the Common Stock and subject to certain exceptions, it  will
not  offer or sell any Common Stock within the United States, its territories or
possessions or to  persons who are  citizens thereof or  residents therein.  The
Underwriting  Agreement does not  limit sale of the  Common Stock offered hereby
outside the United States.

    NatWest has further represented  and agreed that (i)  it has not offered  or
sold  and will not offer  or sell any Common Stock  offered hereby to persons in
the United Kingdom, except to persons whose ordinary activities involve them  in
acquiring, holding, managing or disposing of investments (as principal or agent)
for  the purposes of  their businesses or otherwise  in circumstances which have
not resulted and will not result in an offer to the public in the United Kingdom
within the meaning of the Public Offers of Securities Regulations 1995, (ii)  it
has  complied  with  and  will  comply with  all  applicable  provisions  of the
Financial Services Act 1986 with respect to  anything done by it in relation  to
the  Common Stock in, from or otherwise  involving the United Kingdom, and (iii)
it has only issued  or passed on and  will only issue or  pass on in the  United
Kingdom  any document received by it in  connection with the issue of the Common
Stock to a person who is of the kind described in Article 11(3) of the Financial
Services Act 1986 (Investment  Advertisements) (Exemptions) Order  1995 or is  a
person to whom such document may otherwise lawfully be issued or passed on.

                                      S-8
<PAGE>
PROSPECTUS

                                  $200,000,000
                      NORTHWESTERN PUBLIC SERVICE COMPANY
                                 MORTGAGE BONDS
                          SUBORDINATED DEBT SECURITIES
                                  COMMON STOCK
                            NWPS CAPITAL FINANCING I
                           NWPS CAPITAL FINANCING II
                           NWPS CAPITAL FINANCING III
                              PREFERRED SECURITIES
                  GUARANTEED TO THE EXTENT SET FORTH HEREIN BY
                      NORTHWESTERN PUBLIC SERVICE COMPANY
                               -----------------

    NORTHWESTERN PUBLIC SERVICE COMPANY, A DELAWARE CORPORATION (THE "COMPANY"),
MAY  OFFER  FROM  TIME  TO  TIME, TOGETHER  OR  SEPARATELY,  (I)  MORTGAGE BONDS
("MORTGAGE  BONDS");  (II)  SUBORDINATED  DEBT  SECURITIES  ("SUBORDINATED  DEBT
SECURITIES");  AND  (III)  COMMON  STOCK, PAR  VALUE  $3.50  PER  SHARE ("COMMON
STOCK").

    NWPS CAPITAL  FINANCING  I,  NWPS  CAPITAL FINANCING  II  AND  NWPS  CAPITAL
FINANCING  III (EACH,  A "NWPS TRUST"),  EACH A STATUTORY  BUSINESS TRUST FORMED
UNDER THE LAWS OF THE STATE OF DELAWARE, MAY OFFER, FROM TIME TO TIME, PREFERRED
SECURITIES REPRESENTING  UNDIVIDED BENEFICIAL  INTERESTS IN  THE ASSETS  OF  THE
RESPECTIVE  NWPS TRUSTS ("PREFERRED  SECURITIES"). THE PAYMENT  OF PERIODIC CASH
DISTRIBUTIONS ("DISTRIBUTIONS")  WITH  RESPECT  TO  PREFERRED  SECURITIES  OF  A
PARTICULAR  NWPS TRUST OUT  OF MONEYS HELD  BY THAT NWPS  TRUST, AND PAYMENTS ON
LIQUIDATION, REDEMPTION OR OTHERWISE WITH RESPECT TO SUCH PREFERRED  SECURITIES,
WILL  BE GUARANTEED BY THE COMPANY TO THE EXTENT DESCRIBED HEREIN ("GUARANTEE").
SEE "DESCRIPTION OF THE GUARANTEES" BELOW. THE COMPANY'S OBLIGATIONS UNDER  EACH
GUARANTEE  ARE  SUBORDINATE  AND  JUNIOR  IN  RIGHT  OF  PAYMENT  TO  ALL  OTHER
LIABILITIES OF THE COMPANY  AND RANK PARI PASSU  WITH THE MOST SENIOR  PREFERRED
STOCK  ISSUED FROM TIME TO TIME BY THE COMPANY. THE SUBORDINATED DEBT SECURITIES
MAY BE ISSUED AND SOLD FROM TIME TO TIME IN ONE OR MORE SERIES BY THE COMPANY TO
A NWPS TRUST, OR A TRUSTEE OF  SUCH TRUST, IN CONNECTION WITH THE INVESTMENT  OF
THE PROCEEDS FROM THE OFFERING OF PREFERRED SECURITIES AND COMMON SECURITIES (AS
DEFINED  HEREIN) OF SUCH NWPS TRUST.  THE SUBORDINATED DEBT SECURITIES PURCHASED
BY A NWPS TRUST MAY BE SUBSEQUENTLY DISTRIBUTED PRO RATA TO HOLDERS OF PREFERRED
SECURITIES AND COMMON SECURITIES IN CONNECTION WITH THE DISSOLUTION OF SUCH NWPS
TRUST UPON  THE  OCCURRENCE  OF  CERTAIN  EVENTS  AS  MAY  BE  DESCRIBED  IN  AN
ACCOMPANYING  PROSPECTUS SUPPLEMENT.  THE SUBORDINATED  DEBT SECURITIES  WILL BE
UNSECURED AND  SUBORDINATE AND  JUNIOR  IN RIGHT  OF  PAYMENT TO  CERTAIN  OTHER
INDEBTEDNESS  OF THE COMPANY AS MAY  BE DESCRIBED IN THE ACCOMPANYING PROSPECTUS
SUPPLEMENT.

    THE MORTGAGE BONDS,  SUBORDINATED DEBT  SECURITIES AND COMMON  STOCK OF  THE
COMPANY,  AND  THE  PREFERRED SECURITIES  OF  ANY NWPS  TRUST,  ARE COLLECTIVELY
REFERRED TO HEREIN AS THE "OFFERED SECURITIES."

    THE OFFERED SECURITIES MAY BE ISSUED IN  ONE OR MORE SERIES OR ISSUANCES  IN
AN  AMOUNT NOT  TO EXCEED  IN THE AGGREGATE  $200,000,000, BASED  ON THE INITIAL
OFFERING PRICE, WITH THE AMOUNTS, PRICES AND TERMS TO BE DETERMINED AT OR  PRIOR
TO  THE TIME OF SALE AND SET FORTH IN ONE OR MORE SUPPLEMENTS TO THIS PROSPECTUS
(EACH, A "PROSPECTUS SUPPLEMENT").
                                                   (CONTINUED ON FOLLOWING PAGE)

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

THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES  AND
  EXCHANGE  COMMISSION OR  BY ANY  STATE SECURITIES  COMMISSION NOR  HAS THE
    SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION
      PASSED  UPON  THE  ACCURACY  OR ADEQUACY  OF  THIS  PROSPECTUS. ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                              -------------------

    THE OFFERED SECURITIES WILL BE  SOLD DIRECTLY, THROUGH AGENTS,  UNDERWRITERS
AND  DEALERS, INCLUDING  MORGAN STANLEY &  CO. INCORPORATED,  AS DESIGNATED FROM
TIME  TO  TIME,  OR  THROUGH  A  COMBINATION  OF  SUCH  METHODS.  SEE  "PLAN  OF
DISTRIBUTION."  THE  NAMES  OF  SUCH AGENTS,  UNDERWRITERS  OR  DEALERS  AND ANY
APPLICABLE COMMISSIONS OR DISCOUNTS WILL BE  SET FORTH IN, OR MAY BE  CALCULATED
FROM, THE PROSPECTUS SUPPLEMENT. SEE "PLAN OF DISTRIBUTION" FOR A DESCRIPTION OF
ANY  INDEMNIFICATION ARRANGEMENTS BETWEEN  THE COMPANY, EACH  OF THE NWPS TRUSTS
AND ANY UNDERWRITERS, DEALERS OR AGENTS.

    THIS PROSPECTUS MAY NOT  BE USED TO CONSUMMATE  SALES OF OFFERED  SECURITIES
UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.

                              MORGAN STANLEY & CO.
       INCORPORATED

   
AUGUST 16, 1995
    
<PAGE>
(CONTINUED FROM PREVIOUS PAGE)

    CERTAIN  SPECIFIC TERMS OF  THE PARTICULAR OFFERED  SECURITIES IN RESPECT OF
WHICH THIS PROSPECTUS IS  BEING DELIVERED WILL BE  SET FORTH IN AN  ACCOMPANYING
PROSPECTUS  SUPPLEMENT, INCLUDING, WHERE APPLICABLE, THE INITIAL PUBLIC OFFERING
PRICE OF THE OFFERED SECURITIES,  THE NET PROCEEDS THEREOF  TO THE COMPANY OR  A
NWPS  TRUST,  AS  APPLICABLE,  ANY  LISTING  OF  SUCH  OFFERED  SECURITIES  ON A
SECURITIES EXCHANGE AND ANY OTHER SPECIAL TERMS. THE PROSPECTUS SUPPLEMENT  WILL
ALSO SET FORTH CERTAIN OTHER INFORMATION WITH REGARD TO OFFERED SECURITIES BEING
OFFERED,  INCLUDING  WITHOUT  LIMITATION,  THE FOLLOWING:  (I)  IN  THE  CASE OF
MORTGAGE BONDS, THE SERIES  DESIGNATION, AGGREGATE PRINCIPAL AMOUNT,  AUTHORIZED
DENOMINATIONS,  MATURITY,  INTEREST RATE  (WHICH MAY  BE  FIXED OR  VARIABLE) OR
METHOD OF CALCULATION OF INTEREST AND DATE  OF PAYMENT OF ANY INTEREST, AND  ANY
EXCHANGE, CONVERSION, REDEMPTION, SINKING FUND, OR CREDIT ENHANCEMENT PROVISIONS
AND  OTHER SPECIAL TERMS OF  EACH SERIES; (II) IN  THE CASE OF SUBORDINATED DEBT
SECURITIES, THE  SPECIFIC DESIGNATION,  AGGREGATE PRINCIPAL  AMOUNT,  AUTHORIZED
DENOMINATION, MATURITY, INTEREST RATE (WHICH MAY BE FIXED OR VARIABLE) OR METHOD
OF  CALCULATION OF INTEREST, DATE  OF PAYMENT OF ANY  INTEREST, ANY PREMIUM, THE
PLACE OR PLACES WHERE PRINCIPAL  OF, PREMIUM, IF ANY,  AND ANY INTEREST ON  SUCH
SUBORDINATED  DEBT SECURITIES WILL BE PAYABLE, THE RIGHT OF THE COMPANY, IF ANY,
TO DEFER PAYMENT OF INTEREST ON THE SUBORDINATED DEBT SECURITIES AND THE MAXIMUM
LENGTH OF SUCH DEFERRAL PERIOD, ANY EXCHANGE, CONVERSION, REDEMPTION OR  SINKING
FUND  PROVISIONS, AND ANY  SECURITY, SUBORDINATION OR  OTHER TERMS IN CONNECTION
WITH THE OFFERING  AND SALE OF  THE SUBORDINATED DEBT  SECURITIES IN RESPECT  OF
WHICH  THIS PROSPECTUS  IS DELIVERED;  (III) IN  THE CASE  OF COMMON  STOCK, THE
NUMBER OF SHARES  AND THE TERMS  OF OFFERING THEREOF;  AND (IV) IN  THE CASE  OF
PREFERRED   SECURITIES,  THE  DESIGNATION,  NUMBER  OF  SECURITIES,  LIQUIDATION
PREFERENCE PER SECURITY, DISTRIBUTION RATE  (OR METHOD OF CALCULATION  THEREOF),
DATES ON WHICH DISTRIBUTIONS SHALL BE PAYABLE AND DATES FROM WHICH DISTRIBUTIONS
SHALL ACCRUE, ANY VOTING RIGHTS, ANY EXCHANGE, CONVERSION, REDEMPTION OR SINKING
FUND  PROVISIONS,  ANY  OTHER RIGHTS,  PREFERENCES,  PRIVILEGES,  LIMITATIONS OR
RESTRICTIONS RELATING TO THE PREFERRED SECURITIES  AND THE TERMS UPON WHICH  THE
PROCEEDS  OF THE SALE  OF THE PREFERRED  SECURITIES SHALL BE  USED TO PURCHASE A
SPECIFIC SERIES OF SUBORDINATED DEBT SECURITIES OF THE COMPANY. IF SO  SPECIFIED
IN  THE APPLICABLE  PROSPECTUS SUPPLEMENT, OFFERED  SECURITIES MAY  BE ISSUED IN
WHOLE OR IN PART IN THE FORM OF ONE OR MORE TEMPORARY OR GLOBAL SECURITIES.

    THE PROSPECTUS SUPPLEMENT WILL  ALSO CONTAIN INFORMATION, WHERE  APPLICABLE,
ABOUT  CERTAIN UNITED STATES  FEDERAL INCOME TAX  CONSIDERATIONS RELATING TO THE
OFFERED SECURITIES COVERED BY THE PROSPECTUS SUPPLEMENT.
<PAGE>
                             AVAILABLE INFORMATION

    The  Company and the NWPS Trusts have filed with the Securities and Exchange
Commission (the "Commission")  a Registration Statement  on Form S-3  (including
any  amendments thereto, the "Registration  Statement") under the Securities Act
of 1933,  as  amended  (the  "Securities Act"),  with  respect  to  the  Offered
Securities. This Prospectus does not contain all of the information set forth in
the  Registration  Statement and  the  exhibits and  schedules  thereto, certain
portions of which  have been omitted  pursuant to the  rules of the  Commission.
Statements made in this Prospectus as to the contents of any contract, agreement
or  other  document are  not  necessarily complete.  With  respect to  each such
contract, agreement or other document filed  or incorporated by reference as  an
exhibit  to the Registration Statement, reference is  made to such exhibit for a
more complete description  of the matter  involved, and each  such statement  is
qualified in its entirety by such reference.

   
    The  Company and Synergy Group Incorporated ("Synergy"), a corporation which
the Company  acquired (see  "Acquisition of  Synergy Group  Incorporated"),  are
subject  to the  informational requirements  of the  Securities Exchange  Act of
1934, as amended (the "Exchange Act"), and in accordance therewith file  reports
and  other information  with the Commission,  including proxy  statements in the
case of  the Company,  but  not Synergy.  Reports,  proxy statements  and  other
information  filed  by  the  Company  and Synergy  with  the  Commission  may be
inspected and  copied  at the  public  reference facilities  maintained  by  the
Commission  at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, and at
the Commission's Regional  Offices located  at Suite  1400, Northwestern  Atrium
Center,  500 West  Madison Street,  Chicago, Illinois  60661 and  at Seven World
Trade Center, 13th Floor, New York, New York 10048. Copies of such materials may
be obtained  from the  Public Reference  Section of  the Commission,  450  Fifth
Street,  N.W., Washington, D.C. 20549, at  prescribed rates. Such reports, proxy
statements and other information concerning the Company may also be inspected at
the offices of the New York Stock Exchange, 20 Broad Street, New York, New  York
10005,  on  which  exchange  certain of  the  Company's  securities  are listed.
Information in this Prospectus concerning Synergy has been obtained from reports
and other information filed by Synergy with the Commission.
    

    No separate  financial  statements of  any  of  the NWPS  Trusts  have  been
included  herein. The  Company and  the NWPS  Trusts do  not consider  that such
financial statements would be  material to holders  of the Preferred  Securities
because  (i) all  of the  common securities  of the  NWPS Trusts  will be owned,
directly or indirectly, by the Company,  a reporting company under the  Exchange
Act,  (ii) each of the NWPS Trusts  is a newly organized special purpose entity,
has no operating history  and has no independent  operations but exists for  the
sole  purpose of issuing securities  representing undivided beneficial interests
in the assets of such NWPS Trust, investing the proceeds thereof in Subordinated
Debt Securities issued by  the Company and engaging  in activities necessary  or
incidental  thereto, and (iii) the obligations of  each of the NWPS Trusts under
the  Trust  Securities  (as  defined  herein)  are  fully  and   unconditionally
guaranteed  by the Company to the extent  that such NWPS Trust has funds legally
available to meet such  obligations. See "Description  of the Subordinated  Debt
Securities" and "Description of the Guarantees."

                      DOCUMENTS INCORPORATED BY REFERENCE

    The  following  documents  filed  by the  Company  with  the  Commission are
incorporated herein by reference:

        (a) The Company's Annual Report on Form 10-K for the year ended December
    31, 1994;

        (b) The Company's Quarterly  Report on Form 10-Q  for the quarter  ended
    March 31, 1995;

   
        (c)  The Company's Quarterly  Report on Form 10-Q  for the quarter ended
    June 30, 1995;
    

   
        (d) The Company's Current Report on Form 8-K filed May 26, 1995;
    

   
        (e) The Company's Current Report on Form 8-K filed June 21, 1995; and
    

   
        (f) The Company's Current Report on Form 8-K filed July 27, 1995.
    

    All documents subsequently filed by  the Company pursuant to Section  13(a),
13(c),  or 14 or 15(d) of the Exchange Act after the date of this Prospectus and
prior to the  termination of  the offering of  the Offered  Securities shall  be
deemed  to be  incorporated by  reference in  this Prospectus  and to  be a part
hereof from

                                       1
<PAGE>
the date of  filing of  such documents. Any  statement contained  in a  document
incorporated or deemed to be incorporated by reference herein shall be deemed to
be  modified or superseded for purposes of  this Prospectus to the extent that a
statement contained herein  or in  any other subsequently  filed document  which
also  is  or  is  deemed to  be  incorporated  by reference  herein,  or  in the
Prospectus Supplement for  the offering  of the  particular Offered  Securities,
modifies  or  supersedes  such  statement. Any  such  statement  so  modified or
superseded shall  not  be  deemed,  except as  so  modified  or  superseded,  to
constitute a part of this Prospectus.

    THE  COMPANY  WILL  PROVIDE WITHOUT  CHARGE  TO EACH  PERSON,  INCLUDING ANY
BENEFICIAL OWNER, TO WHOM A COPY OF  THIS PROSPECTUS HAS BEEN DELIVERED, ON  THE
WRITTEN  OR ORAL REQUEST OF SUCH  PERSON, A COPY OF ANY  OR ALL OF THE DOCUMENTS
REFERRED TO ABOVE WHICH HAVE BEEN OR  MAY BE INCORPORATED IN THIS PROSPECTUS  BY
REFERENCE,  OTHER THAN  EXHIBITS TO  SUCH DOCUMENTS  WHICH ARE  NOT SPECIFICALLY
INCORPORATED BY REFERENCE INTO THE INFORMATION THAT THE PROSPECTUS INCORPORATES.
REQUESTS FOR SUCH  COPIES SHOULD BE  DIRECTED TO MS.  ROGENE THADEN,  TREASURER,
NORTHWESTERN  PUBLIC SERVICE COMPANY, 33 THIRD  STREET S.E., HURON, SOUTH DAKOTA
57350-1318, TELEPHONE NUMBER 605-353-8320.

                                  THE COMPANY

   
    The Company's  principal business  is energy  distribution. The  Company  is
engaged   as  an   electric  and   gas  utility   in  generating,  transmitting,
distributing, and  selling electric  energy in  eastern South  Dakota, where  it
furnishes  electric service to  approximately 54,900 customers  in more than 100
communities and adjacent rural areas  and in purchasing, distributing,  selling,
and   transporting  natural  gas  to  approximately  75,000  customers  in  four
communities in Nebraska and 56 communities in eastern South Dakota. The Company,
through its subsidiaries, is  also engaged in  certain nonutility operations  as
more  fully discussed under the caption "Nonutility Operations" and has recently
acquired Synergy Group Incorporated, a  major propane distribution company.  See
"Acquisition  of Synergy Group Incorporated." The Company was incorporated under
the laws of the  State of Delaware in  1923 and has its  principal office at  33
Third  Street  S.E., Huron,  South Dakota  57350-1318.  Its telephone  number is
605-352-8411.
    

ELECTRIC BUSINESS

    On a fully consolidated basis, 46% of the Company's 1994 operating  revenues
were  from the sale of  electric energy. All of  the Company's electric revenues
are derived from customers in South Dakota.

    By customer category, 33% of 1994 total electric sales were from residential
sales, 50%  were  from commercial  and  industrial  sales, 2%  was  from  street
lighting  and sales to public  authorities, and 15% were  from sales for resale.
The Company has relatively few large customers in its service territory.

    Sales for  resale primarily  include power  pool sales  to other  utilities.
Power  pool sales fluctuate from  year to year depending  on a number of factors
including the Company's  availability of  excess short-term  generation and  the
ability  to sell  the excess  power to  other utilities  in the  power pool. The
Company also sells power and energy  at wholesale to certain municipalities  for
resale and to various governmental agencies.

    The  Company shares in the ownership of the Big Stone Generating Plant ("Big
Stone"), located near Big Stone City in northeastern South Dakota, the Coyote  I
Electric Generating Plant ("Coyote"), located near Beulah, North Dakota, and the
Neal Electric Generating Unit #4 ("Neal"), located near Sioux City.

    At  December  31, 1994,  the aggregate  net summer  peaking capacity  of all
Company owned electric generating units was 309,480 kw, consisting of 105,711 kw
from Big Stone (the Company's 23.4% share), 42,600 kw from Coyote (the Company's
10.0% share), 54,169  kw from Neal  (the Company's 8.7%  share), and 107,000  kw
from  internal combustion turbine  units and small  diesel units, used primarily
for peaking purposes.

    The Company is a summer peaking utility. The 1994 peak demand of 229,922  kw
occurred  on July  18, 1994.  Total system  capability at  the time  of peak was
309,480 kw. The  reserve margin  for 1994 was  35%. The  minimum reserve  margin
requirement  as determined by the members  of the Mid-Continent Area Power Pool,
of which the Company is a member, is 15%.

                                       2
<PAGE>
    The Company has  an integrated  resource plan to  identify how  to meet  the
energy needs of its customers. The plan includes estimates of customer usage and
programs  to provide for economic, reliable,  and timely supplies of energy. The
plan does not anticipate  the need for  additional baseload generating  capacity
for the Company for at least the next 10 years.

    All  of the Company's  baseload plants are  fueled by coal.  The Company has
maintained competitive electric rates when compared to neighboring utilities and
has a competitive electric baseload  generating production cost, which  includes
fuel  and plant operating  expenses, of less  than 1.5 CENTS  per kilowatt hour.
Lignite and  sub-bituminous  coal were  utilized  by  the Company  as  fuel  for
virtually  all  of  the electric  energy  generated during  1994.  The continued
delivery of lignite and sub-bituminous coal to the three large steam  generating
units  in which  the Company  is part owner  is reasonably  assured by contracts
covering various periods of the operating lives of these units.

GAS BUSINESS

    On a fully consolidated basis, 40% of the Company's 1994 operating  revenues
were  from the sale of  gas energy. During 1994, the  Company derived 56% of its
gas revenues from South Dakota and  44% from Nebraska. The Company's peak  daily
sendout was 128,700 MMBTU.

    For  the year ended December 1994, 44%  of the Company's gas sales were from
residential customers  and 56%  of  sales were  from commercial  and  industrial
sales.  During the last five years the Company has expanded its gas distribution
operations to serve 29 new communities in South Dakota.

    The Company  owns  and operates  natural  gas distribution  systems  serving
approximately  36,000 customers in eastern South  Dakota, for which it purchases
gas from various gas marketing firms under gas transportation service agreements
with various gas marketing firms. These agreements provide for firm  deliverable
pipeline  capacity of  approximately 49,300 MMBTU  per day in  South Dakota. The
Company has  service  agreements  with  Northern  Natural  Gas  Company  ("NNG")
providing  for  firm transportation  of natural  gas.  While NNG  has eliminated
nearly all of  its gas supply  activities, the Company  has supply contracts  in
place and peak shaving capacity to meet its peak day system needs.

    In  Nebraska, the Company owns and operates natural gas distribution systems
serving approximately 39,000  retail customers in  the village of  Alda and  the
cities  of  Grand  Island,  Kearney, and  North  Platte,  Nebraska.  The Company
purchases much of its natural gas for these systems from KN Gas Supply Co. under
a seven-year service agreement entered into in 1993. The Company also  purchases
certain  quantities of gas for its Nebraska customers from various gas marketing
firms. These  agreements  provide  for firm  deliverable  pipeline  capacity  of
approximately 49,600 MMBTU per day in Nebraska.

    To  supplement firm gas supplies, the  Company has contracts for underground
natural  gas  storage  services  to  meet  the  heating  season  and  peak   day
requirements  of its gas  customers. In addition, the  Company owns and operates
six propane-air plants with a total rated  capacity of 18,000 MMBTU per day,  or
approximately  14% of peak  day requirements. The  propane-air plants provide an
economic alternative  to pipeline  transportation charges  to meet  the  extreme
peaks caused by customer demand on extremely cold days.

    A  few  of the  Company's industrial  customers  purchase their  natural gas
requirements directly from gas marketing  firms for transportation and  delivery
through  the Company's distribution  system. The transportation  rates have been
designed to make the Company economically indifferent as to whether the  Company
sells and transports gas or only transports gas.

COMPETITION

    Although  the Company's electric service  territory is assigned according to
the South Dakota Public Utilities Act, and the Company has the right to  provide
electric  service  to  present and  future  electric customers  in  its assigned
service area for so long as the service provided is deemed adequate, the  energy
industry  in general has become  increasingly competitive. Electric service also
competes with other forms of energy and the degree of competition may vary  from
time to time depending on relative costs and supplies of other forms of energy.

                                       3
<PAGE>
    The  National  Energy Policy  Act  of 1992  was  designed to  promote energy
efficiency and increased competition in the electric wholesale markets. Such Act
also allows the Federal Energy Regulatory Commission ("FERC") to order wholesale
wheeling by public utilities to provide utility and nonutility generators access
to public utility transmission facilitates. The FERC is currently  investigating
a  restructuring of  the electric  utility industry.  Many states  are currently
considering retail wheeling, which aims to provide all customers with the  right
to  choose their  electricity supplier.  No regulatory  proposals have  yet been
formally introduced in South Dakota.

    FERC Order 636  requires, among  other provisions, that  all companies  with
natural  gas pipelines separate  natural gas supply  or production services from
transportation service  and storage  businesses.  This allows  gas  distribution
companies,  such  as  the  Company, and  individual  customers  to  purchase gas
directly from producers, third parties,  and various gas marketing entities  and
transport  it through  the suppliers'  pipelines. While  Order 636  had positive
aspects by providing for  more diversified supply and  storage options, it  also
required   the   Company   to  assume   responsibility   for   the  procurement,
transportation, and storage of natural gas. The alternatives now available under
Order 636 create additional pressure on  all distribution companies to keep  gas
supply and transportation pricing competitive, particularly for large customers.

WEATHER

    Weather  fluctuations  in  the  Company's  service  area  have  the greatest
influence on the Company's revenues from year to year. Typically gas sales  peak
when  colder winter weather patterns create increased winter heating needs while
sales decline during warmer  winter periods. Electric  sales peak during  warmer
summer  periods  due to  increased air  conditioning  sales while  cooler summer
weather patterns produce less sales of electric energy.

REGULATION

    The Company is a  "public utility" within the  meaning of the Federal  Power
Act  and the South Dakota  Public Utilities Act and, as  such, is subject to the
jurisdiction of, and regulation by, FERC with respect to issuance of securities,
the South Dakota Public  Utilities Commission ("PUC")  with respect to  electric
service  territories, and both FERC and the  PUC with respect to rates, service,
accounting records,  and  in  other  respects. The  State  of  Nebraska  has  no
centralized   regulatory  agency  which  has  jurisdiction  over  the  Company's
operations in that state; however, the  Company's natural gas rates are  subject
to regulation by the municipalities in which it operates.

    Under  the South Dakota  Public Utilities Act, enacted  in 1975, a requested
rate increase may be implemented  by the Company 30 days  after the date of  its
filing  unless its effectiveness is suspended by the PUC and, in such event, can
be implemented subject  to refund  with interest six  months after  the date  of
filing,  unless  sooner  authorized  by the  PUC.  The  Company's  electric rate
schedules provide that it may pass  along to all classes of customers  qualified
increases  or decreases in the cost of  fuel used in its generating stations and
in the cost  of fuel  included in purchased  power. A  purchased gas  adjustment
provision  in its gas  rate schedules permits  the company to  pass along to gas
customers increases or decreases in the cost of purchased gas.

    The Company's last electric rate increase  amounted to less than 1% in  May,
1985.  On May 26, 1994,  the Company filed for a  $2.4 million increase in South
Dakota natural gas revenues. As a result of a negotiated settlement with the PUC
on  November  15,  1994,  the  Company  implemented  rates  which  will  produce
additional annual natural gas revenues of $2.1 million, assuming normal weather,
representing  an overall  increase of  6.2%. On  December 30,  1994, the Company
filed for a $2.7  million increase in rates  applicable to its Nebraska  natural
gas  service  area. Following  a negotiated  settlement,  an annual  increase of
$2.275 million has been implemented, effective July 1, 1995, an overall increase
of 8.7%.

CAPITAL SPENDING AND FINANCING

    The Company's  primary  capital  requirements include  the  funding  of  its
utility  construction and expansion programs, the  funding of debt and preferred
stock retirements  and  sinking  fund  requirements,  and  the  funding  of  its
corporate development and investment activities.

                                       4
<PAGE>
    Expenditures  for regulated utility construction  activities for 1994, 1993,
and 1992  were $22.7  million, $20.0  million, and  $18.5 million.  Construction
expenditures  during the last  three years included  expenditures related to the
installation of an additional 43 mw  of internal electric peaking capacity,  the
expansion  of the Company's natural gas system into 29 additional communities in
eastern South Dakota,  and to construction  of an operations  center which  will
provide  future cost savings and operating efficiencies through consolidation of
activities.  Construction  expenditures  for  the  Company's  regulated  utility
businesses  are estimated  to be  $19.3 million in  1995. The  majority of these
projected expenditures will  be spent on  enhancements of the  electric and  gas
distribution   systems  and  completion  of  the  operations  center.  Estimated
construction expenditures for the Company's regulated utility businesses for the
years 1995 through 1999 are expected to be approximately $69 million.

    Capital requirements for the mandatory retirement of long-term debt and  the
mandatory  preferred stock  sinking fund redemption  totaled $600,000, $180,000,
and $513,000, for the years ended 1994, 1993, and 1992. It is expected that such
mandatory retirements will be $600,000 in 1995, $1,080,000 in 1996, $570,000  in
1997, $20.6 million in 1998, and $13.5 million in 1999.

NONUTILITY OPERATIONS

    NORTHWESTERN GROWTH CORPORATION ("NGC"). NGC was incorporated under the laws
of  South  Dakota  in  1994  to pursue  and  manage  nonutility  investments and
development activities. Although the primary  focus of NGC's investment  program
will be to seek growth opportunities in the energy, energy equipment, and energy
services industries, NGC is also pursuing opportunities in existing and emerging
growth  entities  in  nonenergy industries  that  meet return  and  capital gain
requirements. Along  with a  portfolio of  marketable securities,  NGC's  assets
include  the  investments of  three  subsidiaries: Northwestern  Networks, Inc.,
Northwestern Systems, Inc., and SYN Inc.

    NORTHWESTERN NETWORKS, INC. ("NNI"). NNI was incorporated in South Dakota in
1986. NNI holds a common stock investment in LodgeNet Entertainment Corporation,
a provider of  television entertainment  and information systems  to hotels  and
motels.

   
    NORTHWESTERN  SYSTEMS, INC. ("NSI"). NSI was incorporated in South Dakota in
1986. NSI owns all  of the common  stock of Lucht, Inc.,  a firm that  develops,
manufactures,  and markets  multi-image photographic printers  and other related
equipment.
    

   
    SYN INC. ("SYN"). SYN, a Delaware corporation, owns all of the common  stock
of  Synergy Group Incorporated, a major propane distributor. See "Acquisition of
Synergy Group Incorporated."
    

    GRANT, INC.  Grant, Inc.,  which holds  title to  property not  used in  the
Company's utility business, was incorporated in South Dakota in 1972.

   
                   ACQUISITION OF SYNERGY GROUP INCORPORATED
    

GENERAL

   
    On  August 15,  1995, SYN  acquired Synergy  Group Incorporated,  a Delaware
corporation ("Synergy")  and its  subsidiaries and  certain operating  equipment
which  Synergy  has  been  leasing  from  S&J  Investments  (the "Acquisition"),
pursuant to the Purchase and Sale Agreement dated May 17, 1995 (the "Acquisition
Agreement") among SYN, Synergy, S&J Investments and the stockholders of  Synergy
(the "Synergy Stockholders").
    

   
    The  Acquisition expanded the Company's  energy distribution business, which
previously was primarily  regulated electric and  gas utility distribution.  See
"The  Company". Two  of the  Company's corporate  objectives are  intended to be
accomplished through the Acquisition. The  immediate objective is to expand  the
Company's  energy  distribution business.  The second  objective  is to  use the
business acquired from  Synergy as  a base  for additional  acquisitions in  the
propane  distribution  industry which,  unlike  the Company's  electric  and gas
public utility business, is not regulated  as to rates or territory served.  The
Company is currently considering the acquisition of a small propane distributor.
The propane distribution industry
    

                                       5
<PAGE>
currently  consists of approximately 8,000 retail propane marketing companies in
the continental United States, with propane  being the fourth largest source  of
energy  marketed at retail in the  United States, following electricity, natural
gas and fuel oil.

   
    As a result of  the factors affecting Synergy's  business, see "Business  of
Synergy", the Company expects that its consolidated revenues and earnings may be
subject to increased variability following the Acquisition.
    

BUSINESS OF SYNERGY

    Synergy,  headquartered in Farmingdale, New  York, is a multi-state marketer
principally engaged in the  retail distribution of propane  and other fuels  for
residential,  commercial,  industrial,  agricultural and  other  uses. Synergy's
propane sales during the past  three fiscal years represented approximately  83%
of its annual revenues, of which the major portion (approximately 50% of propane
sales in the fiscal year ending March 31, 1995) resulted from sales to customers
who  utilize propane for residential purposes, primarily for home heating, water
heating and cooking. The balance of propane sales are primarily for  commercial,
industrial  and agricultural use.  Synergy also sells propane  for use as engine
fuel for forklifts and over-the-road  vehicles. Synergy currently maintains  152
retail  branches  which service  approximately 200,000  customers in  23 states,
primarily in rural and suburban areas of the Northeast, Mid-Atlantic,  Southeast
and  Southcentral regions of the United  States. According to available industry
data, Synergy  is,  based upon  volume  sold, one  of  the nation's  10  largest
retailers of propane.

    Synergy  also sells gasoline,  diesel and aviation  fuel, and appliances and
equipment which use propane, and is engaged  in the sale, repair and leasing  of
forklift trucks.

    Synergy  purchases  propane from  major domestic  oil  companies as  well as
independent oil and liquid gas producers.  These producers ship the propane  via
pipeline to immediate supply terminals at which Synergy's large transport trucks
take  delivery and transport the propane  to bulk storage tanks. Synergy's fleet
of approximately 500 tank  trucks delivers the propane  from these bulk  storage
facilities  to approximately 193,000 propane storage tanks or cylinders which it
leases to its customers and which are located at customer premises. These  tanks
are  used exclusively to hold propane  purchased from Synergy, thereby promoting
the stability of Synergy's  customer base. While the  cost and inconvenience  of
switching  tanks tends to minimize switching by customers among suppliers on the
basis of minimal price variations, it also makes it more difficult to obtain new
customers, other than through  acquisitions, in areas  where there are  existing
relationships between potential customers and other distributors.

    The  retail propane  industry is mature,  with only limited  growth in total
demand for the  product foreseen.  The Company  expects the  overall demand  for
propane  to  remain  relatively  constant  over  the  next  several  years, with
year-to-year industry  volumes being  impacted  primarily by  weather  patterns.
Therefore,  Synergy's ability to  grow within the industry  will be dependent on
its ability to acquire other retail distributors, on the success of opening  new
district  locations and on the  success of its marketing  efforts to acquire new
customers.

    Synergy competes with other distributors of propane, including several major
companies and several thousand small independent operators. Synergy's ability to
compete  effectively   depends  on   the  reliability   of  its   service,   its
responsiveness  to  customers and  its  ability to  maintain  competitive retail
prices.

    Synergy competes for  customers against suppliers  of electricity, fuel  oil
and  natural gas. In the last two decades,  many new homes were built, and older
homes converted to use electrical heating systems and appliances. Electricity is
a major  competitor  of propane,  but  propane generally  enjoys  a  substantial
competitive price advantage over electricity. The Company believes that fuel oil
does  not present a significant competitive  threat in Synergy's primary service
areas because:  (i)  propane is  a  residue-free, cleaner  energy  source,  (ii)
environmental concerns make fuel oil relatively unattractive, and (iii) fuel oil
appliances  generally are not  as efficient as  propane appliances. Furnaces and
appliances that  burn propane  will not  operate on  fuel oil,  and therefore  a
conversion  from  one  fuel  to  the  other  requires  the  installation  of new
equipment. Synergy's customers will have an incentive to switch to fuel oil only
if fuel oil becomes significantly less expensive than propane. Synergy generally
does not attempt  to sell propane  in areas served  by natural gas  distribution
systems,  except sales for specialized industrial applications because the price
per equivalent

                                       6
<PAGE>
energy unit  of propane  is, and  has  historically been,  higher than  that  of
natural gas. To use natural gas, however, a retail customer must be connected to
a  distribution system provided by a local  utility. Natural gas is not expected
by management of the  Company to create significant  competition for Synergy  in
areas  that are not currently served by natural gas distribution systems because
of the costs involved  in building or connecting  to a natural gas  distribution
system.

    The  propane gas  distribution business  is affected  by economic  and other
factors, some of which are  beyond the control of  the Synergy, such as  weather
conditions. Synergy's business is highly seasonal, with a substantial portion of
its  revenues customarily  being generated  during the  six month  winter period
ending in March.  Synergy's business  was adversely affected  by unusually  warm
winter  conditions in fiscal 1995. Warm  winter conditions in the future periods
may adversely affect Synergy's revenues, operating income and cash flow in  such
years.

    The  retail propane  business is  a "margin-based"  business in  which gross
profits are dependent upon the excess of the sales price over the propane supply
costs. Propane  is a  commodity, and,  as such,  its unit  price is  subject  to
changes   in  response  to  changes  in   supply  or  other  market  conditions.
Consequently, the unit price of propane  purchased by Synergy, as well as  other
marketers,  can change rapidly  over a short period.  In general, product supply
contracts permit suppliers to  charge posted prices at  the time of delivery  or
the  current prices established  at major storage points.  If rapid increases in
the wholesale  cost  of  propane  cannot be  immediately  passed  on  to  retail
customers,  such  increases may  reduce margins  on retail  sales. Consequently,
Synergy's profitability  will  be  sensitive to  changes  in  wholesale  propane
prices.

    According  to public reports  filed by Synergy  with the Commission, Synergy
incurred substantial net  losses in each  of its  last five fiscal  years. As  a
result of such net losses, Synergy has been in default under certain of its debt
covenants  and the  audit report  prepared by  Synergy's independent accountants
relating to Synergy's financial statements for  the last two fiscal years  noted
that  Synergy's  recurring losses  from operations,  net capital  deficiency and
default on  certain of  its debt  "raise substantial  doubt about  the  entity's
ability  to  continue as  a going  concern." Although  Synergy has  recorded net
losses during each of the  last five years, its  operating income for the  years
ended  March  31, 1995  and 1994  was  approximately $6,492,000  and $4,090,000,
respectively. See "Management  of Synergy"  for a description  of the  Company's
financing  plans  and  anticipated  operating  efficiencies  which  the  Company
believes will substantially  improve Synergy's results  of operations  following
the Acquisition.

ACQUISITION CONSIDERATION

   
    The  consideration paid by SYN for  the Acquisition, in addition to assuming
various liabilities of Synergy  and its subsidiaries, consisted  of (i) cash  in
the amount of $137,500,000, which amount will be subject to adjustment upward or
downward  based upon the working capital  of Synergy (as specifically defined in
the Acquisition  Agreement), which  adjustment  was estimated  to be  an  upward
adjustment  of $3,358,000  at the  time of  closing of  the Acquisition,  (ii) a
promissory note payable by SYN in the principal amount of $1,250,000, and  (iii)
the issuance to the Synergy Stockholders of 17,500 shares of the Common Stock of
SYN  (17.5%  of the  total outstanding)  and 2,500  shares of  the 15%  Series A
Cumulative Preferred  Stock  of  SYN  (valued at  $2,500,000),  such  shares  of
preferred  stock being part of a series of  preferred stock of SYN for which the
remaining 50,000 shares were issued to the Company in exchange for a $50,000,000
portion  of  the  long-term  financing  which  the  Company  provided  to   SYN.
Substantially  all of Synergy's loan indebtedness  ($88.2 million) was paid from
the cash portion of the consideration for the Acquisition.
    

MANAGEMENT OF SYNERGY

   
    The Acquisition was made in association with Empire Gas Corporation ("Empire
Gas"), a large propane distribution company headquartered in Lebanon,  Missouri,
which  has a management experienced in the retail propane distribution business.
NGC  and  SYN  have  entered  into  a  management  agreement  (the   "Management
Agreement")  with Empire Gas, pursuant  to which Empire Gas  has been engaged to
perform the planning and management of the assets and business operations of SYN
and its subsidiaries, subject to the direction of the Board of Directors of SYN,
following the Acquisition (the "Management Services").
    

                                       7
<PAGE>
   
    It is planned that  substantial changes will be  made in the management  and
operation  of  the acquired  business  in order  to  achieve improvement  in the
results of  operations  of the  business.  NGC  and Empire  Gas  will  implement
significant  cost efficiency measures to reduce Synergy's operating, selling and
general and administrative expenses. These  measures include the elimination  of
employee  positions, corporate  overhead and field  location operating expenses.
The Synergy headquarters office operations will be consolidated with the  Empire
Gas  corporate offices  in Lebanon,  Missouri, resulting  in substantial expense
savings. Another significant portion of the expense reductions is represented by
the elimination of compensation  and vehicle lease  expenses previously paid  to
the  Synergy  Stockholders.  In  addition  to  operating  cost  reductions,  the
Company's post acquisition  financing and capitalization  plan for Synergy  will
reduce  overall financing expenses  and provide capital for  growth that was not
available prior to the acquisition. See "Northwestern Public Service Company and
Synergy Group Incorporated Pro Forma Financial Information."
    

    As compensation for the Management Services, SYN will pay Empire Gas a Fixed
Fee and  a Management  Fee.  The Fixed  Fee is  intended  to cover  Empire  Gas'
operating  overhead in performing the Management  Services and initially will be
$3,250,000 per annum, subject to adjustment annually based upon increases in the
Consumer Price Index. The  Management Fee will  be at the  rate of $500,000  per
annum  plus 10%  of the  amount by  which the  earnings before  interest, taxes,
depreciation and amortization  of SYN  and its subsidiaries,  on a  consolidated
basis, exceed certain threshold amounts.

   
    Empire  Gas purchased 10%  of the common  stock of SYN  for $10,000 and will
have an ongoing  option to purchase  from NGC  an additional 20%  of the  common
stock  of SYN for $20,000.  However, according to the  formula stated in another
agreement among SYN, Empire Gas and NGC,  NGC will be allowed to reacquire  from
Empire  Gas up to 7,500 shares of such  common stock of SYN, without payment, if
Empire Gas fails to  achieve certain cumulative results  from the management  of
SYN and its subsidiaries while the Management Agreement remains in effect.
    

    The  term of the Management Agreement extends to June 30, 2000 and continues
year to year  thereafter unless  terminated earlier by  SYN or  Empire Gas.  The
Management  Agreement may be terminated by  either party prior to the expiration
of the  term on  any one  of several  grounds specified  in the  Agreement.  The
Management  Agreement includes  a right of  termination by SYN  if its operating
results do not exceed prescribed thresholds which increase annually as specified
therein. In the event the Company receives notice that the Management  Agreement
will  be terminated by Empire Gas, SYN has the right to the use of the personnel
and facilities of  Empire Gas for  a period of  up to 18  months following  such
notice by Empire Gas, while developing an alternative for Empire Gas' services.

THIRD PARTY SALE

   
    NGC  and SYN have sold  certain of the retail  branches acquired by SYN from
Synergy to an unrelated third party (the "Third Party Sale"). The purchase price
for the Third Party Sale  was cash in the  amount of approximately $38  million,
which amount will be subject to adjustment upward or downward based upon certain
closing date financial information relating to the retail branches acquired.
    

                                       8
<PAGE>
CAPITALIZATION OF SYN

   
    The capitalization of SYN, taking into account the financing provided to SYN
by  the Company and NGC from the net proceeds of certain of the securities being
offered pursuant to this Prospectus (see "Use of Proceeds"), is as follows:
    

   
<TABLE>
<S>                                                                     <C>
Common Stock (100,000 shares outstanding):
   NGC (72,500 shares) (1)............................................  $     72,500
  Empire Gas (10,000 shares) (1)......................................        10,000
  Former Synergy Stockholders (17,500 shares) (2).....................        17,500
                                                                        $    100,000
15% Series A Cumulative Preferred Stock (52,500 shares outstanding):
  Company (50,000 shares).............................................  $ 50,000,000
  Former Synergy Stockholders (2,500 shares) (2)......................     2,500,000
                                                                        $ 52,500,000
Long Term Debt:
  Secured Term Loan from NGC (3)......................................  $ 54,500,000
    Total Capitalization..............................................  $107,100,000
<FN>
------------------------

(1)  Empire Gas has an option to purchase 20,000 of the shares owned by NGC  for
     a price of $1 per share.

(2)  Issued to Former Synergy Stockholders as part of Acquisition consideration.

(3)  The  Company anticipates that SYN will  obtain a bank borrowing facility to
     fund SYN's working capital needs.
</TABLE>
    

                                       9
<PAGE>
                    NORTHWESTERN PUBLIC SERVICE COMPANY AND
                           SYNERGY GROUP INCORPORATED
                        PRO FORMA FINANCIAL INFORMATION
   
    Set forth  below  are summary  financial  data extracted  from  the  audited
consolidated  statement of operations of the Company for the year ended December
31, 1994, the unaudited consolidated financial  statements of the Company as  of
June  30, 1995, and  for the six  months then ended;  the summary financial data
extracted from  the unaudited  statement of  operations of  Synergy for  the  12
months  ended December 31, 1994 and for the  six months ended June 30, 1995, and
balance sheet  information as  of June  30, 1995;  and the  pro forma  financial
information for the Company ("the Pro Forma Financial Information") for the year
ended  December 31, 1994, for the six months ended June 30, 1995, and as of June
30, 1995,  based on  such  historical financial  statements, to  illustrate  the
effects  of the Acquisition. The Pro Forma Financial Information illustrates the
effects of the Acquisition as adjusted to  give effect to the Third Party  Sale.
(See "Acquisition of Synergy Group Incorporated.")
    
   
    The  Acquisition  will  be  accounted  for  using  the  purchase  method  of
accounting. The total  purchase price of  the Acquisition will  be allocated  to
Synergy's  tangible  and  intangible  assets and  liabilities  based  upon their
respective fair values. The allocation of the aggregate purchase price  included
in  the Pro Forma Financial Information is preliminary, but the final allocation
of the purchase price is not expected to differ materially from the  preliminary
allocation. The financing plan to be executed for the funding of the Acquisition
is  expected to be as presented in the Pro Forma Financial Information. Although
market conditions may  impact certain  financing options and  assumptions as  to
interest  and dividend rates, the overall financing plan is not expected to vary
materially from that presented.
    
   
    The pro forma statements of operations for the year ended December 31,  1994
and  for the six months ended June 30, 1995, give effect to the Acquisition, and
the related transactions as  if they had  occurred on January  1, 1994. The  pro
forma  balance sheet as of June 30, 1995 has been prepared as if the transaction
had occurred on that date. The pro forma financial information does not  purport
to  present the financial position  or results of operations  of the Company had
the Acquisition actually been completed as of the dates indicated. In  addition,
the  pro forma  financial information  is not  necessarily indicative  of future
results of operations  and should  be read  in conjunction  with the  historical
consolidated  financial  statements  of the  Company  incorporated  by reference
herein.
    

                                       10
<PAGE>
                  UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                          YEAR ENDED DECEMBER 31, 1994
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                           ESTIMATED
                                                                           EFFECTS OF
                                                                          PARTIAL SALE
                                                                          OF ASSETS TO
                                                  NPS        SYNERGY       UNRELATED                 PRO FORMA
                                               HISTORICAL   HISTORICAL   THIRD PARTY(A)   SUBTOTAL  ADJUSTMENT    PRO FORMA
                                               ----------   ----------   --------------   --------  -----------   ---------
<S>                                            <C>          <C>          <C>              <C>       <C>           <C>
Operating Revenue............................   $ 157,266    $ 128,182      $(28,814)     $256,634     --         $256,634
Cost of Product Sold.........................      80,457       62,242       (14,748)      127,951     --          127,951
                                               ----------   ----------   --------------   --------  -----------   ---------
Gross Profit.................................      76,809       65,940       (14,066)      128,683     --          128,683
                                               ----------   ----------   --------------   --------  -----------   ---------
Operating Costs and Expenses
  Operating and maintenance expenses.........      18,191       44,663       (10,046)       52,808    $(4,181)(B)   48,627
  General and administrative.................       9,707       14,239       --             23,946     (4,944)(B)   19,002
  Depreciation and amortization..............      12,439        4,983          (905)       16,517        448(C)    16,965
  Property and other taxes...................       6,104       --           --              6,104     --            6,104
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   46,441       63,885       (10,951)       99,375     (8,677)      90,698
                                               ----------   ----------   --------------   --------  -----------   ---------
Operating Income.............................      30,368        2,055        (3,115)       29,308      8,677       37,985
                                               ----------   ----------   --------------   --------  -----------   ---------
Other Income (Expense)
  Investment income and other................       2,611        1,185       --              3,796     --            3,796
  Interest expense...........................      (9,670)     (11,994)      --            (21,664)     7,504(D)   (14,160)
  Debt restructuring costs...................      --           (2,976)(G)     --           (2,976)    --           (2,976)
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   (7,059)     (13,785)      --            (20,844)     7,504      (13,340)
                                               ----------   ----------   --------------   --------  -----------   ---------
Income (Loss) Before Income Taxes............      23,309      (11,730)       (3,115)        8,464     16,181       24,645
Provision (Credit) for Income Taxes..........       7,869         (324)          (94)        7,451       (269)(E)    7,182
                                               ----------   ----------   --------------   --------  -----------   ---------
  Net Income.................................      15,440      (11,406)       (3,021)        1,013     16,450       17,463
Dividends on Preferred Stock.................        (120)      --           --               (120)    (2,043)(F)   (2,163)
                                               ----------   ----------   --------------   --------  -----------   ---------
  Net Income Available for Common............   $  15,320    $ (11,406)     $ (3,021)     $    893    $14,407     $ 15,300(G)
                                               ----------   ----------   --------------   --------  -----------   ---------
                                               ----------   ----------   --------------   --------  -----------   ---------
Net Income per Share.........................   $    2.00                                                         $   1.74(G)
                                               ----------                                                         ---------
                                               ----------                                                         ---------
Weighted Average Shares Outstanding..........       7,677                                                            8,805
                                               ----------                                                         ---------
                                               ----------                                                         ---------
Selected Financial Ratios
  Interest coverage..........................        5.14(H)                                                          4.65
                                               ----------                                                         ---------
                                               ----------                                                         ---------
  Ratio of earnings to fixed charges.........        3.39(H)                                                          2.73(G)
                                               ----------                                                         ---------
                                               ----------                                                         ---------
  Ratio of earnings to fixed charges,
   including preferred dividends.............        3.33(H)                                                          2.25(G)
                                               ----------                                                         ---------
                                               ----------                                                         ---------
</TABLE>

                                       11
<PAGE>
   
                  UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                         SIX MONTHS ENDED JUNE 30, 1995
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
    

   
<TABLE>
<CAPTION>
                                                                           ESTIMATED
                                                                           EFFECTS OF
                                                                          PARTIAL SALE
                                                                          OF ASSETS TO
                                                  NPS        SYNERGY       UNRELATED                 PRO FORMA
                                               HISTORICAL   HISTORICAL   THIRD PARTY(A)   SUBTOTAL  ADJUSTMENT    PRO FORMA
                                               ----------   ----------   --------------   --------  -----------   ---------
<S>                                            <C>          <C>          <C>              <C>       <C>           <C>
Operating Revenue............................   $  90,862    $  65,178      $(15,666)     $140,374    $--         $140,374
Cost of Product Sold.........................      47,393       30,577        (8,011)       69,959     --           69,959
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   43,469       34,601        (7,655)       70,415     --           70,415
                                               ----------   ----------   --------------   --------  -----------   ---------
Operating Costs and Expenses
  Operating and maintenance expenses.........       9,005       21,423        (4,949)       25,479       (403)(B)   25,076
  General and administrative.................       5,253        1,808(G)     --             7,061     (1,259)(B)    5,802
  Depreciation and amortization..............       6,433        2,719          (450)        8,702        182(C)     8,884
  Property and other taxes...................       3,340       --           --              3,340     --            3,340
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   24,031       25,950        (5,399)       44,582     (1,480)      43,102
                                               ----------   ----------   --------------   --------  -----------   ---------
Operating Income.............................      19,438        8,651        (2,256)       25,833      1,480       27,313
                                               ----------   ----------   --------------   --------  -----------   ---------
Other Income (Expense)
  Investment income and other................       1,314          575       --              1,889     --            1,889
  Interest expense...........................      (5,082)      (4,795)      --             (9,877)     2,483(D)    (7,394)
  Debt restructuring costs...................      --              (24)      --                (24)    --              (24)
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   (3,768)      (4,244)      --             (8,012)     2,483       (5,529)
                                               ----------   ----------   --------------   --------  -----------   ---------
Income (Loss) Before Income Taxes............      15,670        4,407        (2,256)       17,821      3,963       21,784
Provision (Credit) for Income Taxes..........       5,519         (216)      --              5,303        261(E)     5,564
                                               ----------   ----------   --------------   --------  -----------   ---------
Net Income...................................      10,151        4,623        (2,256)       12,518      3,702       16,220
Dividends on Preferred Stock.................         (59)      --           --                (59)    (1,022)(F)   (1,081)
                                               ----------   ----------   --------------   --------  -----------   ---------
Net Income Available for Common..............   $  10,092    $   4,623      $ (2,256)     $ 12,459    $ 2,680     $ 15,139(G)
                                               ----------   ----------   --------------   --------  -----------   ---------
                                               ----------   ----------   --------------   --------  -----------   ---------
Net Income per Share.........................   $    1.31                                                         $   1.72(G)
                                               ----------                                                         ---------
                                               ----------                                                         ---------
Weighted Average Shares Outstanding..........       7,677                                                            8,805
                                               ----------                                                         ---------
                                               ----------                                                         ---------
Selected Financial Ratios
  Interest coverage..........................        6.15(H)                                                          5.30
                                               ----------                                                         ---------
                                               ----------                                                         ---------
  Ratio of earnings to fixed charges.........        4.00(H)                                                          3.89(G)
                                               ----------                                                         ---------
                                               ----------                                                         ---------
  Ratio of earnings to fixed charges,
   including preferred dividends.............        3.93(H)                                                          3.26(G)
                                               ----------                                                         ---------
                                               ----------                                                         ---------
<FN>
------------------------
Note:  The results of operations for  Synergy for the six months ended June  30,
       1995 are not indicative of a full year's results of operations.
</TABLE>
    

                                       12
<PAGE>
   
                       UNAUDITED PRO FORMA BALANCE SHEET
                                 JUNE 30, 1995
                             (DOLLARS IN THOUSANDS)
    

   
<TABLE>
<CAPTION>
                                                                           ESTIMATED
                                                                           EFFECTS OF
                                                                          PARTIAL SALE
                                                                          OF ASSETS TO
                                                  NPS        SYNERGY       UNRELATED                 PRO FORMA
                                               HISTORICAL   HISTORICAL   THIRD PARTY(I)   SUBTOTAL  ADJUSTMENT    PRO FORMA
                                               ----------   ----------   --------------   --------  -----------   ---------
<S>                                            <C>          <C>          <C>              <C>       <C>           <C>
Current Assets
  Cash.......................................   $   1,991    $   5,323      $ 38,000      $ 45,314   ($38,000)(J) $  7,314
  Trade receivables..........................      11,727       13,089        (3,352)       21,464     (1,858)(K)   19,606
  Inventories................................      13,066       11,137        (2,513)       21,690     (1,500)(K)   20,190
  Prepaid expenses...........................      --            1,535       --              1,535     --            1,535
  Other......................................       5,163       --           --              5,163     --            5,163
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   31,947       31,084        32,135        95,166    (41,358)      53,808
                                               ----------   ----------   --------------   --------  -----------   ---------
Property and Equipment
  At cost, net of accumulated depreciation...     255,268       69,070       (13,685)      310,653      8,115(K)   318,768
                                               ----------   ----------   --------------   --------  -----------   ---------
Other Assets (net)
  Goodwill and other intangibles.............      --            2,327       (18,450)      (16,123)    57,062(K)    40,939
  Other......................................      78,933          817       --             79,750       (817)(K)   78,933
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   78,933        3,144       (18,450)       63,627     56,245      119,872
                                               ----------   ----------   --------------   --------  -----------   ---------
  Total Assets...............................   $ 366,148    $ 103,298      $--           $469,446   $ 23,002     $492,448
                                               ----------   ----------   --------------   --------  -----------   ---------
                                               ----------   ----------   --------------   --------  -----------   ---------
Current Liabilities
  Commercial paper...........................   $  10,000    $  --          $--           $ 10,000   $ --         $ 10,000
  Current maturities of long-term debt.......         570       87,342       --             87,912    (87,342)(L)      570
  Accounts payable and accrued expenses......      25,880       11,156       --             37,036      5,455(K)    42,491
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   36,450       98,498       --            134,948    (81,887)      53,061
                                               ----------   ----------   --------------   --------  -----------   ---------
Other Liabilities
  Deferred income taxes......................      38,909        2,093       --             41,002     (1,720)(L)   39,282
  Unamortized investment tax credits.........      10,302       --           --             10,302     --           10,302
  Deferred interest payable..................      --            1,214       --              1,214     (1,214)(L)    --
  Other......................................      28,410          616       --             29,026     --           29,026
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                   77,621        3,923       --             81,544     (2,934)      78,610
                                               ----------   ----------   --------------   --------  -----------   ---------
Long Term Debt...............................     128,625        4,309       --            132,934     49,395(M)   182,329
                                               ----------   ----------   --------------   --------  -----------   ---------
Company-Obligated Mandatorily Redeemable
 Preferred Securities of Subsidiary Trust....      --           --           --              --        24,212(N)    24,212
                                               ----------   ----------   --------------   --------  -----------   ---------
Cumulative Preferred Stock...................       2,610       41,700       --             44,310    (41,700)(Q)    2,610
                                               ----------   ----------   --------------   --------  -----------   ---------
Common Stock Equity (Deficit)
  Common stock...............................      26,870           41       --             26,911      4,268(O)    31,179
  Additional paid-in capital.................      29,923        5,284       --             35,207     21,191(P)    56,398
  Retained earnings..........................      58,939      (50,457)      --              8,482     50,457(Q)    58,939
  Unrealized gain on investments, net........       5,110       --           --              5,110     --            5,110
                                               ----------   ----------   --------------   --------  -----------   ---------
                                                  120,842      (45,132)      --             75,710     75,916      151,626
                                               ----------   ----------   --------------   --------  -----------   ---------
  Total Liabilities & Stockholders Equity....   $ 366,148    $ 103,298       --           $469,446   $ 23,002     $492,448
                                               ----------   ----------   --------------   --------  -----------   ---------
                                               ----------   ----------   --------------   --------  -----------   ---------
</TABLE>
    

                                       13
<PAGE>
                    NOTES TO PRO FORMA FINANCIAL INFORMATION

   
A) Represents all relevant statement of operations effects, net of income taxes,
    generated by the Third Party Sale.
    

B)  Represents  the following  breakdown of  reductions  in operating  costs and
    expenses principally related to employee positions, corporate administrative
    expenses  and  certain  other  specifically  identified  cost  savings   (in
    thousands):

   
<TABLE>
<CAPTION>
                                                                                  YEAR ENDED   SIX MONTHS
                                                                                   12/31/94       ENDED
                                                                                  -----------    6/30/95
                                                                                   INCREASE    -----------
                                                                                               (DECREASE)

<S>                                                                               <C>          <C>
Operating expenses --

1)  Employee related expenses...................................................   $  (1,834)   $    (916)
2)  Vehicle lease expenses......................................................      (2,047)         663
3)  Store consolidations........................................................        (300)        (150)
                                                                                  -----------  -----------
      Total.....................................................................   $  (4,181)   $    (403)
                                                                                  -----------  -----------
                                                                                  -----------  -----------
General and administrative expenses --

1)  Employee related expenses...................................................   $  (7,863)   $  (2,670)
2)  Occupancy costs.............................................................        (643)        (388)
3)  Bank account charges........................................................        (188)         (76)
4)  Empire Gas general and administrative charge................................       3,250        1,625
5)  Empire Gas management fee...................................................         500          250
                                                                                  -----------  -----------
      Total.....................................................................   $  (4,944)   $  (1,259)
                                                                                  -----------  -----------
                                                                                  -----------  -----------
</TABLE>
    

   
    All  general and  administrative functions  previously performed  at Synergy
    headquarters would  be undertaken  by Empire  Gas, Inc.  under a  management
    agreement   governing  the   operation  of  the   Synergy  properties.  (See
    "Acquisition of  Synergy  Group  Incorporated.")  Under  the  terms  of  the
    management  agreement,  Empire  Gas  is compensated  through  a  general and
    administrative charge and a management fee arrangement.
    

   
    The vehicle lease expenses are  primarily attributable to property owned  by
    affiliates  of existing Synergy shareholders. Such property was purchased as
    a part of the acquisition transaction. The increase in lease expense for the
    six months ended June 30, 1995 reflects the net effect of the elimination of
    such lease expense  and a reversal  of the  credit to expense  created by  a
    $1,328,000   forgiveness  by   these  same  affiliates   of  accrued  rental
    obligations. In addition, general and administrative expense savings include
    shareholder compensation.
    

C) Represents  additional  depreciation and  amortization  of fixed  assets  and
    intangibles  related to  the adjustment  of assets  to fair  market value in
    accordance with the purchase method of accounting.

   
D) Represents  interest  expense  savings  associated  with  the  retirement  of
    Synergy's  debt as  a result of  the Acquisition net  of additional interest
    expense related to the Company issuing new debt securities.
    

                                       14
<PAGE>
                    NOTES TO PRO FORMA FINANCIAL INFORMATION

   
    The following  table presents  a reconciliation  of the  pro forma  interest
    expense  to the historical interest expense  for the year ended December 31,
    1994, and the six months ended June 30, 1995 (in thousands):
    

   
<TABLE>
<CAPTION>
                                                                                                             SIX
                                                                                                           MONTHS
                                                                                              YEAR ENDED    ENDED
                                                                                               12/31/94    6/30/95
                                                                                              ----------  ---------
<S>                                                                                           <C>         <C>
Historical interest expense --
  The Company...............................................................................  $    9,670  $   5,082
  Synergy...................................................................................      11,994      4,795
                                                                                              ----------  ---------
                                                                                                  21,664      9,877
                                                                                              ----------  ---------
Add:  Interest on short-term bridge financing at an assumed rate of 7.5%....................         649        321
      Interest on new debt securities issued for permanent financing at an assumed rate of
      7.5%..................................................................................       3,639      1,892
      Less:  Interest on retired long-term debt of Synergy..................................     (11,792)    (4,696)
                                                                                              ----------  ---------
Pro forma adjustment........................................................................      (7,504)    (2,483)
                                                                                              ----------  ---------
Pro forma interest expense..................................................................  $   14,160  $   7,394
                                                                                              ----------  ---------
                                                                                              ----------  ---------
</TABLE>
    

E) Represents income tax effect of  all pro forma adjustments. Such  adjustments
    assume Synergy will be a separate income tax filing and reporting entity.

F)  Represents preferred stock dividend requirements  related to the issuance of
    new securities as part of the permanent financing. This dividend requirement
    is based on an 8.5% pretax rate.

G) The net income  of Synergy for  the year ended December  31, 1994 includes  a
    nonrecurring  charge of $2,976,000 for debt  restructing costs. Had the debt
    restructuring not occurred, pro forma net income available for common  would
    have been $18,276,000; pro forma net income per common share would have been
    $2.08;  ratio of earnings to fixed charges  would have been 2.94x; and ratio
    of fixed charges, including  preferred dividends would  have been 2.42x  for
    the year ended December 31, 1994.

   
    The  net income of Synergy for the six months ended June 30, 1995 includes a
    nonrecurring credit to general and administrative expense of $4,326,000  for
    the  reversal  of previously  accrued  shareholders' compensation.  Had this
    compensation adjustment not been  made, pro forma  net income available  for
    common  would have been  $10,813,000; pro forma net  income per common share
    would have been $1.23;  ratio of earnings to  fixed charges would have  been
    3.32x  and ratio of earnings to fixed charges, including preferred dividends
    would have been 2.74x for the six months ended June 30, 1995.
    

   
    In accordance with  the current  guidelines of the  Commission, no  minority
    interest  has been  recognized even  though the  Company will  initially own
    72.5% of the common stock of SYN.
    

H) The  Company has  calculated  the interest  coverage  ratio pursuant  to  the
    Company's  general  mortgage  indenture  and  has  calculated  the  ratio of
    earnings  to  fixed  charges  pursuant  to  Item  503  of  the  Commission's
    Regulation S-K.

I)   Represents  the sale  of certain assets  to an  unrelated third  party in a
    separate transaction.

J)  Represents cash purchase price from the unrelated third party sale proceeds.

K) Represents various  purchase accounting  adjustments to be  accounted for  in
    accordance with the purchase method of accounting.

                                       15
<PAGE>
                    NOTES TO PRO FORMA FINANCIAL INFORMATION

    The  following is a detailed allocation of  the purchase price and source of
    funds, net of underwriting fees, related to the acquisition transaction  (in
    thousands):

   
<TABLE>
<S>                                                                       <C>
Purchase price..........................................................  $ 140,000
Add:  Debt, acquisition, and transition costs...........................      5,000
                                                                          ---------
    Total...............................................................    145,000
Less:  Sale to an unrelated third party.................................    (38,000)
                                                                          ---------
Adjusted purchase price.................................................  $ 107,000
                                                                          ---------
                                                                          ---------
Allocation of purchase price --
  Cash..................................................................  $   5,323
  Trade receivables.....................................................      7,879
  Inventories...........................................................      7,124
  Prepaid expenses and other............................................      1,535
  Property, plant, and equipment........................................     63,500
  Goodwill and other intangibles........................................     40,939
  Accounts payable and accrued expenses.................................    (16,611)
  Customer deposits.....................................................       (616)
  Deferred income tax...................................................       (373)
  Long-term debt........................................................     (1,700)
                                                                          ---------
    Net assets acquired.................................................  $ 107,000
                                                                          ---------
                                                                          ---------
Source of funds, net --
  Long-term debt........................................................  $  52,004
  Company-Obligated Mandatorily Redeemable Preferred Securities of Trust
   Subsidiary...........................................................     24,212
  Common stock..........................................................     30,784
                                                                          ---------
    Total...............................................................  $ 107,000
                                                                          ---------
                                                                          ---------
</TABLE>
    

L)  Represents liabilities  and other deferred  credits that would  be paid with
    proceeds of the transaction.

M) Represents the  following debt  restructuring of the  combined companies  (in
    thousands):

   
<TABLE>
<S>                                                                       <C>
Historical long-term debt --
  NPS...................................................................  $ 128,625
  Synergy...............................................................      4,309
                                                                          ---------
    Total...............................................................    132,934
                                                                          ---------
Add:  New debt offering.................................................     52,004
Less:  Retirement of Synergy long-term debt.............................     (2,609)
                                                                          ---------
  Pro forma adjustment..................................................     49,395
                                                                          ---------
  Pro forma long-term debt..............................................  $ 182,329
                                                                          ---------
                                                                          ---------
</TABLE>
    

   
N)  Represents the net proceeds expected  to be generated by a Company-Obligated
    Mandatorily Redeemable  Preferred Securities  of Trust  Subsidiary  offering
    that  is part of the permanent financing. All of the assets of NWPS Capital,
    the subsidiary trust, are approximately  $33.5 million of Subordinated  Debt
    Securities of the Company which bear interest at a rate of 8 1/8% per annum,
    based on the issuance of 1.3 million Preferred Securities. Pro Forma amounts
    shown  in the table reflect the portion of the estimated net proceeds of the
    offering of Preferred Securities assumed  for purposes of preparing the  Pro
    Forma Financial Information used to fund the Acquisition.
    

O)  Represents the  combination of  purchase accounting  adjustments eliminating
    Synergy's common stock investment of $41,000 against the par value of shares
    expected to be sold in a common stock offering that is part of the permanent
    financing.

                                       16
<PAGE>
                    NOTES TO PRO FORMA FINANCIAL INFORMATION

    The following provides a summary of the net adjustment (in thousands):

<TABLE>
<S>                                                                         <C>
Par value of shares generated from Company common stock offering..........  $   4,309
Less:  elimination of Synergy common stock................................        (41)
                                                                            ---------
  Net.....................................................................  $   4,268
                                                                            ---------
                                                                            ---------
</TABLE>

P)  Represents  the combination of  purchase accounting adjustments  eliminating
    Synergy's  additional paid-in capital of $5,284,000 against the net proceeds
    expected to be allocated to Company  additional paid-in capital as a  result
    of the common stock offering that is part of the permanent financing.

    The following provides a summary of the net adjustment (in thousands):

<TABLE>
<S>                                                                        <C>
Net allocation to additional paid-in capital from Company common stock
 offering................................................................  $  26,475
Less:  elimination of Synergy additional paid-in capital.................     (5,284)
                                                                           ---------
  Net....................................................................  $  21,191
                                                                           ---------
                                                                           ---------
</TABLE>

Q) Represents the elimination of Synergy's remaining equity accounts.

                                       17
<PAGE>
                                THE NWPS TRUSTS

    Each of NWPS Capital Financing I, NWPS Capital Financing II and NWPS Capital
Financing  III is a statutory business  trust formed under Delaware law pursuant
to (i) a separate declaration of trust ( each, a "Declaration") executed by  the
Company,  as sponsor for such  trust (the "Sponsor"), and  the NWPS Trustees (as
defined below) of such trust  and (ii) the filing  of a separate certificate  of
trust  with the Secretary  of State of the  State of Delaware  on June 19, 1995.
Each NWPS Trust exists for the  exclusive purposes of (i) issuing the  Preferred
Securities  and common securities representing undivided beneficial interests in
the assets of such  NWPS Trust (the "Common  Securities" and, together with  the
Preferred Securities, the "Trust Securities"), (ii) investing the gross proceeds
from the sale of the Trust Securities in the Subordinated Debt Securities of the
Company  and  (iii)  engaging  in  only  those  other  activities  necessary  or
incidental thereto. All of the Common Securities will be directly or  indirectly
owned  by the Company. The Common Securities  will rank pari passu, and payments
will be made thereon pro rata, with the Preferred Securities, except that,  upon
an  event of  default under the  Declaration, the  rights of the  holders of the
Common Securities  to payment  in  respect of  distributions and  payments  upon
liquidation,  redemption and otherwise will be subordinated to the rights of the
holders of the  Preferred Securities.  The Company will  directly or  indirectly
acquire  Common Securities in an aggregate liquidation amount equal to 3% of the
total capital of each NWPS Trust. Each NWPS Trust has a term of approximately 55
years but may terminate earlier, as  provided in each Declaration. The  business
and  affairs of  each NWPS Trust  will be  conducted by the  trustees (the "NWPS
Trustees") appointed by the Company as the direct or indirect holder of all  the
Common  Securities.  The holder  of the  Common Securities  will be  entitled to
appoint, remove or replace any of, or increase or reduce the number of, the NWPS
Trustees of a NWPS Trust.  The duties and obligations  of the NWPS Trustees  for
each  NWPS Trust shall be governed by the Declaration for such trust. A majority
of the NWPS Trustees will be persons who are employees or officers of or who are
affiliated with  the  Company  (the  "Regular  Trustees").  In  certain  limited
circumstances   set  forth  in  the  Prospectus  Supplement  for  the  Preferred
Securities, the holders  of a majority  in liquidation amount  of the  Preferred
Securities  will be entitled to appoint  one additional Regular Trustee who need
not be an employee or officer of  or otherwise affiliated with the Company.  One
NWPS  Trustee of  each NWPS Trust  will be  a financial institution  that is not
affiliated with the  Company and  has a  specified minimum  amount of  aggregate
capital,  surplus, and  undivided profits  of not  less than  $50,000,000, which
shall act as property trustee and as  indenture trustee for the purposes of  the
Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), pursuant to
the  terms set forth  in the Prospectus Supplement  for the Preferred Securities
(the "Property Trustee"). In addition,  unless the Property Trustee maintains  a
principal  place of business  in the State  of Delaware and  otherwise meets the
requirements of applicable law, one NWPS Trustee of each NWPS Trust will have  a
principal  place of business or  reside in the State  of Delaware (the "Delaware
Trustee"). The Company will pay all fees and expenses related to the NWPS Trusts
and the  offering  of  the  Trust  Securities, the  payment  of  which  will  be
guaranteed  by the  Company as described  under "Description  of the Guarantees"
herein. The Delaware Trustee  for each NWPS Trust  is Wilmington Trust  Company,
Rodney  Square North, 1100 North Market  Street, Wilmington, Delaware 19890. The
principal place of  business of each  NWPS Trust  is c/o the  Company, 33  Third
Street S.E., Huron, South Dakota, 57350-1318, telephone (605) 352-8411.

                                       18
<PAGE>
   
                                USE OF PROCEEDS
    

   
    The  net proceeds from the sale of  $104.5 million of the Offered Securities
will be applied to fund the Acquisition, including certain transaction expenses.
The Company will use $50 million of  the net proceeds to purchase 50,000  shares
of  the 15% Series  A Cumulative Preferred  Stock of SYN,  the subsidiary of the
Company formed to effect the Acquisition, and $54.5 million of the net  proceeds
will be loaned by the Company to SYN.
    

    Each  NWPS Trust will use all of the  proceeds received from the sale of its
Preferred Securities to purchase Subordinated Debt Securities from the  Company.
The  Company intends to add  the net proceeds from  the sale of the Subordinated
Debt Securities to its  general funds, to  be used to  fund the Acquisition,  as
described above, and for other general corporate purposes, as described below.

   
    The  net proceeds from the sale of any other Offered Securities will be used
for general corporate purposes, which may include the repayment of indebtedness,
working capital  expenditures  and other  investments  in, or  acquisitions  of,
businesses  and assets.  Pending application of  such net  proceeds for specific
purposes, such proceeds may be invested in short-term or marketable  securities.
Specific  allocations of proceeds to a particular purpose that have been made at
the date of any Prospectus Supplement will be described therein.
    

                RATIO OF EARNINGS TO FIXED CHARGES AND EARNINGS
               TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS

   
    The following table sets forth the  ratios of earnings to fixed charges  and
earnings to combined fixed charges and preferred dividends for the Company on an
historical  basis for the fiscal years ended December 31, 1994, 1993, 1992, 1991
and 1990, and for the six-month period ended June 30, 1995. Such ratios are also
presented on a  pro forma basis  for the year  ended December 31,  1994 and  the
six-month  period  ended June  30,  1995. For  the  purpose of  calculating such
ratios, "earnings" consist  of income from  continuing operations before  income
taxes,  "fixed charges" consist of interest on all indebtedness, amortization of
debt expense and  the percentage of  rental expense on  operating leases  deemed
representative  of  the  interest  factor  and  "preferred  dividends" represent
dividends paid  on all  preferred  shares outstanding  during the  periods.  See
"Northwestern  Public Service Company  and Synergy Group  Incorporated Pro Forma
Financial Information" for the assumptions upon  which the pro forma ratios  are
based.
    
   
<TABLE>
<CAPTION>
                                                                                                             SIX MONTHS
                                                               YEAR ENDED DECEMBER 31,                       ENDED JUNE
                                           ---------------------------------------------------------------       30,
                                              1990         1991         1992         1993         1994          1995
                                              -----        -----        -----        -----        -----     -------------
<S>                                        <C>          <C>          <C>          <C>          <C>          <C>
Ratio of Earnings to Fixed Charges.......        4.61         4.09         3.42         3.52         3.39          4.00
Ratio of Earnings to Combined Fixed
 Charges and Preferred Dividends.........        4.28         3.79         3.33         3.45         3.33          3.93

<CAPTION>
                                                      PRO FORMA
                                           --------------------------------
                                                               SIX MONTHS
                                              YEAR ENDED       ENDED JUNE
                                             DECEMBER 31,          30,
                                                 1994             1995
                                           -----------------  -------------
<S>                                        <C>                <C>
Ratio of Earnings to Fixed Charges.......           2.73             3.89
Ratio of Earnings to Combined Fixed
 Charges and Preferred Dividends.........           2.25             3.26
</TABLE>
    

                                       19
<PAGE>
                       DESCRIPTION OF THE MORTGAGE BONDS

GENERAL

    The  Mortgage Bonds will be bonds,  notes or other evidences of indebtedness
authenticated and  delivered under  a  General Mortgage  Indenture and  Deed  of
Trust,  between  the  Company and  The  Chase  Manhattan Bank  (N.A.)  (the "New
Mortgage Trustee"), dated as of August  1, 1993. The New Mortgage Trustee  shall
act as indenture trustee for the purposes of the Trust Indenture Act of 1939, as
amended.  Such General  Mortgage and Deed  of Trust, as  supplemented by various
supplemental indentures, including one or more supplemental indentures  relating
to  the Mortgage Bonds,  is hereinafter referred  to as the  "New Mortgage." The
summaries under this heading do  not purport to be  complete and are subject  to
the  detailed provisions of the New  Mortgage. Capitalized terms used under this
heading which  are not  otherwise  defined in  this  Prospectus shall  have  the
meanings ascribed thereto in the New Mortgage. Wherever particular provisions of
the  New Mortgage or terms  defined therein are referred  to, such provisions or
definitions are  incorporated by  reference as  a part  of the  statements  made
herein  and such statements  are qualified in their  entirety by such reference.
References to article and  section numbers in this  description of the  Mortgage
Bonds, unless otherwise indicated, are references to article and section numbers
of the New Mortgage.

    The  New Mortgage provides that additional bonds may be issued thereunder on
the basis of Pledged Bonds (as hereinafter defined), property additions, retired
bonds and  cash.  (See  "Issuance  of Additional  Mortgage  Bonds"  below.)  The
Mortgage  Bonds and all other bonds heretofore or hereafter issued under the New
Mortgage are collectively referred to herein as the "Mortgage Bonds."

    Reference is made to the Prospectus Supplement for the Mortgage Bonds for  a
description of the following terms of the series of Mortgage Bonds in respect of
which  this Prospectus is being delivered: (i) the title (series designation) of
such Mortgage Bonds; (ii) the limit, if any, upon the aggregate principal amount
of such Mortgage Bonds, (iii) the date  or dates on which the principal of  such
Mortgage  Bonds is payable; (iv) the rate  or rates at which such Mortgage Bonds
will bear interest,  if any; the  date or  dates from which  such interest  will
accrue;  the dates  on which  such interest  will be  payable ("Interest Payment
Dates") and the regular record dates  for the interest payable on such  Interest
Payment  Dates; (v) the bases  on which the Mortgage  Bonds will be issued; (vi)
the option, if any, of the Company to redeem such Mortgage Bonds and the periods
within which  or the  dates on  which, the  prices at  which and  the terms  and
conditions upon which, such Mortgage Bonds may be redeemed, in whole or in part,
upon  the exercise of such option; (vii)  the obligation, if any, of the Company
to redeem  or purchase  such Mortgage  Bonds  pursuant to  any sinking  fund  or
analogous provisions or at the option of the Holder and the periods within which
or  the dates on  which, the prices at  which and the  terms and conditions upon
which such Mortgage Bonds  will be redeemed,  in whole or  in part, pursuant  to
such  obligation; (viii) the denominations in  which such Mortgage Bonds will be
issuable; and (ix) any other terms of such Mortgage Bonds not inconsistent  with
the provisions of the New Mortgage.

    While  the  New  Mortgage contains  provisions  for the  maintenance  of the
Mortgaged Property, it  does not  contain any  provisions for  a maintenance  or
sinking  fund and, except  as may be  provided in a  Supplemental Indenture (and
described in the applicable Prospectus Supplement), there will be no  provisions
for any such funds for the Mortgage Bonds.

REDEMPTION OF THE MORTGAGE BONDS

    Any terms for the optional or mandatory redemption of Mortgage Bonds will be
set forth in the Prospectus Supplement. Except as shall otherwise be provided in
the  applicable Prospectus Supplement with  respect to Mortgage Bonds redeemable
at the option of the Holder, Mortgage Bonds will be redeemable only upon  notice
by  mail not less than 30  days prior to the date  fixed for redemption, and, if
less than all the Mortgage Bonds of a series, or any tranche thereof, are to  be
redeemed,  the particular Mortgage Bonds to be redeemed will be selected by such
method as shall  be provided for  the particular  series or tranche,  or in  the
absence  of any such provision, by such  method as the Bond Registrar deems fair
and appropriate. (See Sections 5.03 and 5.04.)

                                       20
<PAGE>
    Any notice of redemption at  the option of the  Company may state that  such
redemption  shall be conditioned upon receipt by the New Mortgage Trustee, on or
prior to the dated  fixed for such  redemption, of money  sufficient to pay  the
principal  of and premium, if any, and  interest, if any, on such Mortgage Bonds
and that if such money has not been so received, such notice will be of no force
and effect and the Company will not  be required to redeem such Mortgage  Bonds.
(See Section 5.04.)

SECURITY

    GENERAL.   Except as discussed below, Mortgage Bonds now or hereafter issued
under the New Mortgage will be secured primarily by:

        (a) bonds ("First Mortgage Bonds") issued under the Company's  Indenture
    dated  August 1,  1940 (the "First  Mortgage"), to The  Chase Manhattan Bank
    (N.A.), successor by merger to  The Chase National Bank  of the City of  New
    York,  as trustee  (the "First  Mortgage Trustee"),  and C.  J. Heinzelmann,
    successor to Carl E.  Buckley, as individual trustee,  and delivered to  the
    New Mortgage Trustee under the New Mortgage, which First Mortgage Bonds will
    be  secured, equally and ratably with all other bonds issued under the First
    Mortgage, by a valid first lien on substantially all of the fixed  property,
    franchises  and rights of the Company  of a character not expressly excepted
    from the  lien  (which  excepted  property  consists  principally  of  cash,
    securities,  receivables,  personal  property  held  for  sale  or  lease or
    consumable in operations, and  certain real estate held  for resale and  not
    used  or useful in the  public utility business of  the Company), subject to
    permitted encumbrances and liens as defined in the First Mortgage; and

        (b) the lien of the New Mortgage on the Company's properties used in the
    generation, production, transmission or  distribution of electricity or  the
    distribution  of gas in any form and for  any purpose in the States of South
    Dakota or Nebraska, together with the properties owned by the Company as  of
    August  1, 1993 located in the States of North Dakota and Iowa which consist
    principally of shared ownership interests in electric generating  facilities
    (the  Company does  not serve  customers in the  States of  North Dakota and
    Iowa), but not,  unless the  Company otherwise elects,  any future  acquired
    properties  in the States of North Dakota  and Iowa, which lien is junior to
    the lien of the First Mortgage.

    As  discussed  below   under  "Pledged   Bonds,"  following   a  merger   or
consolidation of another corporation into the Company, the Company could deliver
to  the New  Mortgage Trustee  bonds issued  under an  existing mortgage  on the
properties of such other corporation in lieu  of or in addition to bonds  issued
under  the First Mortgage. In  such event, the Mortgage  Bonds would be secured,
additionally, by  such  bonds  and by  the  lien  of the  New  Mortgage  on  the
properties of such other corporation, which would be junior to the liens of such
existing  mortgage and the First Mortgage. The First Mortgage and all such other
mortgages are hereinafter, collectively, called  the "Class "A" Mortgages,"  and
all bonds issued under the Class "A" Mortgages and delivered to the New Mortgage
Trustee  are hereinafter collectively called the "Pledged Bonds." If and when no
Class "A" Mortgages  are in  effect, the New  Mortgage will  constitute a  first
mortgage lien on all property of the Company subject thereto.

    PLEDGED  BONDS.   The Pledged  Bonds will  be issued  and delivered  to, and
registered in the name of, the New  Mortgage Trustee or its nominee and will  be
owned and held by the New Mortgage Trustee, subject to the provisions of the New
Mortgage,  for the benefit of the Holders of all Mortgage Bonds Outstanding from
time to time,  and the  Company will  have no  interest in  such Pledged  Bonds.
Except  as may be otherwise set forth  in the supplemental indenture pursuant to
which any Mortgage Bonds are to be issued, Pledged Bonds issued as the basis for
the authentication and delivery  of such Mortgage Bonds  (a) will mature on  the
same  dates, and in the same principal  amounts, as such Mortgage Bonds, and (b)
will contain, in addition to  any mandatory redemption provisions applicable  to
all  Pledged Bonds Outstanding  under the related  Class "A" Mortgage, mandatory
redemption provisions correlative to provisions for mandatory redemption, or for
redemption at the option  of the Holder, of  such Mortgage Bonds. Pledged  Bonds
issued  as the basis for  authentication and delivery of  a series or tranche of
Mortgage Bonds (x) may,  but need not,  bear interest, any  such interest to  be
payable  at the same times  as interest on the Mortgage  Bonds of such series or
tranche,

                                       21
<PAGE>
and (y) may, but need not, contain provisions for the redemption thereof at  the
option  of the Company, any such redemption to  be made at a redemption price or
prices not less than the principal  amount of such Pledged Bonds. (See  Sections
4.02 and 7.01.)

    Any  payment by the  Company of principal  of or premium  or interest on the
Pledged Bonds  held by  the New  Mortgage Trustee  will be  applied by  the  New
Mortgage  Trustee to the payment  of any principal, premium  or interest, as the
case may be, in  respect of the Mortgage  Bonds which is then  due, and, to  the
extent of such application, the obligation of the Company under the New Mortgage
to  make such payment in respect of  the Mortgage Bonds will be deemed satisfied
and discharged. If,  at the time  of any  such payment of  principal of  Pledged
Bonds,  there shall be no  principal then due in  respect to the Mortgage Bonds,
the proceeds of such payment will be  deemed to constitute Funded Cash and  will
be held by the New Mortgage Trustee as part of the New Mortgaged Property, to be
withdrawn,  used or applied as provided in the  New Mortgage. If, at the time of
any such payment  of premium or  interest on  Pledged Bonds, there  shall be  no
premium  or interest, as  the case may be,  then due in  respect of the Mortgage
Bonds, the proceeds  of such  payment will  be remitted  to the  Company at  its
request.  (See Section 7.02 and "Withdrawal of  Cash" below.) Any payment by the
Company of principal of or premium  or interest on Mortgage Bonds  authenticated
and  delivered on  the basis  of the  deposit with  the New  Mortgage Trustee of
Pledged Bonds (other  than by  application of the  proceeds in  respect of  such
Pledged  Bonds) will, to the extent thereof,  be deemed to satisfy and discharge
the obligation of the Company, if any,  to make a payment of principal,  premium
or  interest, as the case may be, in respect of such Pledged Bonds which is then
due.

    The New Mortgage  Trustee may  not sell,  assign or  otherwise transfer  any
Pledged Bonds except to a successor trustee under the New Mortgage. (See Section
7.04.)  At the time any Mortgage Bonds of  any series or tranche which have been
authenticated and  delivered  upon  the  basis of  Pledged  Bonds  cease  to  be
Outstanding  (other than as a  result of the application  of the proceeds of the
payment or redemption  of such Pledged  Bonds), the New  Mortgage Trustee  shall
surrender  to or upon the order of the Company an equal principal amount of such
Pledged  Bonds  having  the  same  Stated  Maturity  and  mandatory   redemption
provisions as such Mortgage Bonds. (See Section 7.03.)

    At  the date of  this Prospectus, the  only Class "A"  Mortgage is the First
Mortgage and the  only Pledged Bonds  issuable at this  time are First  Mortgage
Bonds  issuable thereunder. The New  Mortgage provides that in  the event of the
merger or consolidation of another company with or into the Company, an existing
mortgage constituting a lien  on properties of such  other company prior to  the
lien of the New Mortgage may be designated by the Company as an additional Class
"A"  Mortgage. Bonds thereafter  issued under such  additional mortgage would be
Pledged Bonds and could provide the basis for the authentication and delivery of
Mortgage Bonds under the New Mortgage. (See Section 7.06.) When no Pledged Bonds
are Outstanding under a Class "A" Mortgage except for Pledged Bonds held by  the
New  Mortgage  Trustee, then,  at  the request  of  the Company  and  subject to
satisfaction of certain conditions, the New Mortgage Trustee will surrender such
Pledged Bonds  for cancellation,  and the  related Class  "A" Mortgage  will  be
satisfied  and discharged, the lien of such  Class "A" Mortgage on the Company's
property will cease to exist  and the priority of the  lien of the New  Mortgage
will be increased. (See Section 7.07.)

    The  New Mortgage  contains no restrictions  on the issuance  of bonds under
Class "A" Mortgages  in addition  to Pledged Bonds  issued to  the New  Mortgage
Trustee  as the  basis for  the authentication  and delivery  of Mortgage Bonds.
First Mortgage Bonds  may currently be  issued under the  First Mortgage on  the
basis  of property additions,  retirements of bonds  previously issued under the
First Mortgage and cash deposited with the First Mortgage Trustee. As of  August
3,  1995, $47,500,000  of First Mortgage  Bonds (other than  Pledged Bonds) were
outstanding.

    LIEN OF  THE NEW  MORTGAGE.   The  properties of  the  Company used  in  the
generation,  production, transmission  and distribution  of electricity  and the
distribution of gas  in any  form and  for any purpose  in the  States of  South
Dakota or Nebraska together with properties owned by the Company as of August 1,
1993 located in the States of North Dakota and Iowa (but not, unless the Company
otherwise  elects, any future acquired properties  in the States of North Dakota
and Iowa) are subject to the lien of the New Mortgage. Substantially all of such
property, while subject to the lien of the New Mortgage, will be also subject to
the

                                       22
<PAGE>
prior lien of the First  Mortgage. The Mortgage Bonds  will have the benefit  of
the  prior lien of the  First Mortgage on such property,  and the benefit of the
prior lien of any additional Class "A" Mortgage on any property subject thereto,
to the extent of the aggregate  principal amount of Pledged Bonds, issued  under
the respective Class "A" Mortgages, held by the New Mortgage Trustee.

    The lien of the New Mortgage is subject to Permitted Liens which include tax
liens  and other  governmental charges  which are  not delinquent  and which are
being contested, construction and  materialmen's liens, certain judgment  liens,
easements,  reservations and rights of  others (including governmental entities)
in, and defects of title in, certain property of the Company, certain  leasehold
interests,  liens on the Company's pollution  control and sewage and solid waste
facilities and certain other liens and encumbrances. (See Section 1.01.)

    There are excepted from  the lien of the  New Mortgage, among other  things,
cash  and securities  not paid to,  deposited with  or held by  the New Mortgage
Trustee under the New  Mortgage; contracts, leases and  other agreements of  all
kinds, contract rights, bills, notes and other instruments, accounts receivable,
claims,  certain  intellectual property  rights  and other  general intangibles;
permits,  licenses  and   franchises;  automobiles,   other  vehicles,   movable
equipment,  aircraft and vessels; all goods, wares and merchandise held for sale
in the ordinary  course of  business or for  use by  or for the  benefit of  the
Company; fuel, materials, supplies and other personal property consumable in the
operations  of the Company's business; computers, machinery and equipment; coal,
ore, gas,  oil,  minerals and  timber  mined or  extracted  from the  land;  gas
transmission  lines connecting  wells with main  or branch trunk  lines or field
gathering lines  connecting wells  with  main or  branch trunk  lines;  electric
energy,  gas, steam, water and other  products generated, produced or purchased;
leasehold interests;  and all  books and  records. (See  Granting Clauses.)  The
First Mortgage contains similar, but not identical, exceptions.

    Without the consent of the Holders, the Company and the New Mortgage Trustee
may  enter  into supplemental  indentures  to subject  to  the lien  of  the New
Mortgage additional property, whether or not used in the electric or gas utility
businesses (including  property  which would  otherwise  be excepted  from  such
lien).  (See Section 14.01.) Such property, so  long as the same would otherwise
constitute Property Additions (as  described below), would thereupon  constitute
Property  Additions and  be available  as a basis  for the  issuance of Mortgage
Bonds. (See "Issuance of Additional Mortgage Bonds" below.)

    The New Mortgage contains  provisions subjecting after-acquired property  to
the  lien  thereof, subject  to  the prior  lien  of the  First  Mortgage. These
provisions are limited in  the case of consolidation  or merger (whether or  not
the  Company is the surviving  corporation) or sale of  substantially all of the
Company's assets. In the event of consolidation or merger or the transfer of all
the mortgaged property as or substantially as an entirety, the New Mortgage will
not be required to be a lien upon any of the properties then owned or thereafter
acquired by  the  successor corporation,  except  properties acquired  from  the
Company  in or as a result of  such transaction and improvements, extensions and
additions to such properties and renewals, replacements and substitutions of  or
for   any  part  or  parts  of   such  properties.  (See  Article  Thirteen  and
"Consolidation, Merger,  Conveyance, Transfer  or  Lease" below.)  In  addition,
after-acquired  property  may  be  subject  to  vendors'  liens,  purchase money
mortgages and other liens thereon at the time of acquisition thereof,  including
the lien of any Class "A" Mortgage.

    The  New Mortgage provides that  the New Mortgage Trustee  will have a lien,
prior to the lien  on behalf of  the holders of  Mortgage Bonds, upon  Mortgaged
Property  and any money collected by the New Mortgage Trustee as proceeds of the
Mortgaged Property, for the payment of its reasonable compensation and  expenses
and for indemnity against certain liabilities. (See Section 11.07.)

ISSUANCE OF ADDITIONAL MORTGAGE BONDS

    The maximum principal amount of Mortgage Bonds which may be issued under the
New  Mortgage is limited to $500,000,000,  provided that, without the consent of
the Holders, the Company and the New

                                       23
<PAGE>
Mortgage Trustee may enter into supplemental indentures to increase such amount.
(See Sections 3.01 and 14.01.) Mortgage Bonds  of any series may be issued  from
time  to time under Article Four of the New  Mortgage on the basis of, and in an
aggregate principal amount not exceeding:

        (1) the aggregate principal amount of Pledged Bonds issued and delivered
    to the Trustee;

        (2) 75%  of the  Cost or  Fair  Value (whichever  is less)  of  Property
    Additions  (as  described below)  which  do not  constitute  Bonded Property
    Additions (being, generally,  Property Additions  which have  been made  the
    basis  of the authentication and delivery  of Mortgage Bonds, the release of
    mortgaged  property  or  cash  withdrawals)  after  certain  deductions  and
    additions, primarily including adjustments to offset property retirements;

        (3)  the aggregate principal  amount of Retired  Bonds (which consist of
    Mortgage Bonds  no  longer Outstanding  under  the New  Mortgage  (including
    Mortgage  Bonds deposited under  any sinking or  analogous funds) which have
    not been used for  certain other purposes under  the New Mortgage and  which
    are  not to  be paid,  redeemed or otherwise  retired by  the application of
    Funded Cash),  but  if  Pledged Bonds  have  been  made the  basis  for  the
    authentication and delivery of such Retired Bonds, only if the related Class
    "A" Mortgage has been discharged; and

        (4) an amount of cash deposited with the Trustee.

    In  general,  the issuance  of  Mortgage Bonds  is  subject to  Adjusted New
Earnings of the Company for 12 consecutive months within the preceding 18 months
being at least  one and three-fourths  the Annual Interest  Requirements on  all
Mortgage  Bonds at  the time Outstanding,  Mortgage Bonds then  applied for, all
outstanding Pledged Bonds  other than  Pledged Bonds  held by  the New  Mortgage
Trustee  under  the  New  Mortgage, and  all  other  indebtedness  (with certain
exceptions) secured by a lien prior to the lien of the New Mortgage, except that
no such net earnings requirement need be met if the additional Mortgage Bonds to
be issued are to have no Stated Interest Rate prior to Maturity. The Company  is
not  required  to satisfy  the  net earnings  requirement  prior to  issuance of
Mortgage Bonds  as  provided  in (1)  above  if  the Pledged  Bonds  issued  and
delivered  to the New Mortgage Trustee as  the basis for such issuance have been
authenticated and delivered under the related Class "A" Mortgage on the basis of
retired Pledged Bonds  unless (a) the  Stated Maturity of  such retired  Pledged
Bonds  is  a date  more than  five years  after  the date  of the  Company Order
requesting the authentication and  delivery of such Mortgage  Bonds and (b)  the
Stated Interest Rate, if any, on such retired Pledged Bonds immediately prior to
Maturity  is less than the Stated Interest  Rate, if any, on such Mortgage Bonds
to be  in  effect upon  the  initial  authentication and  delivery  thereof.  In
addition,  the Company is  not required to satisfy  the net earnings requirement
prior to issuance  of Mortgage Bonds  as provided  in (3) above  unless (a)  the
Stated  Maturity of the Retired  Bonds is a date more  than five years after the
date of the  Company Order requesting  the authentication and  delivery of  such
Mortgage  Bonds and (b) the Stated Interest  Rate, if any, on such Retired Bonds
immediately prior to Maturity is less than the Stated Interest Rate, if any,  on
such Mortgage Bonds to be in effect upon the initial authentication and delivery
of  such Mortgage  Bonds. In general,  the interest requirement  with respect to
variable interest rate indebtedness, if any, is determined with reference to the
rate or rates in effect on the date immediately preceding such determination  or
the  rate to  be in  effect upon initial  authentication. (See  Section 1.03 and
Article Four).

    Adjusted Net Earnings are calculated before, among other things,  provisions
for  income taxes;  depreciation or  amortization of  property; interest  on any
indebtedness and amortization  of debt discount  and expense; any  non-recurring
charge  to income of  whatever kind or nature  (including without limitation the
recognition of expense or impairment due to the non-recoverability of assets  or
expense), whether or not recorded as a non-recurring item in the Company's books
of  account; and any refund  of revenues previously collected  or accrued by the
Company subject to possible refund. With  respect to Mortgage Bonds of a  series
subject  to a Periodic  Offering (such as  a medium-term note  program), the New
Mortgage Trustee will be entitled to receive a certificate evidencing compliance
with the net earnings  requirements only once,  at or prior to  the time of  the
first  authentication and delivery of the  Mortgage Bonds of such series (unless
the Company Order requesting  the authentication and  delivery of such  Mortgage
Bonds is delivered on or after the date which is two years after the most recent
Net  Earnings Certificate  was delivered, in  which case  an updated certificate
would be required to be delivered). (See Sections 1.03 and 4.01.)

                                       24
<PAGE>
    Property Additions  generally include  any property  which is  owned by  the
Company  and is subject to the lien of the New Mortgage, except any property the
cost of  acquisition or  construction  of which  is  properly chargeable  to  an
operating expense account of the Company. (See Section 1.04.)

    Unless  otherwise  provided  in the  applicable  Prospectus  Supplement, the
Company will issue the Mortgage Bonds on the basis of Pledged Bonds (I.E., First
Mortgage Bonds) issued under its First Mortgage.

RELEASE OF PROPERTY

    The Company may obtain the release from the lien of the New Mortgage of  any
Mortgaged Property if the Fair Value of all of the Mortgaged Property (excluding
the Mortgaged Property to be released but including any Mortgaged Property to be
acquired  by the Company with the proceeds  of, or otherwise in connection with,
such release) equals or exceeds an amount equal to twenty-fifteenths  (20/15ths)
of the aggregate principal amount of Mortgage Bonds Outstanding and bonds issued
under Class "A" Mortgages outstanding (other than Pledged Bonds).

    The  New Mortgage provides simplified procedures for the release of property
which has been released from the lien of a Class "A" Mortgage, minor  properties
and  property taken by eminent domain,  and provides for dispositions of certain
obsolete property and grants or surrender of certain rights without any  release
or consent by the New Mortgage Trustee.

    If  any property released from the lien  of the New Mortgage continues to be
owned by the Company after such release, the New Mortgage will not become a lien
on any  improvement,  extension  or  addition  to  such  property  or  renewals,
replacements or substitutions of or for any part or parts of such property. (See
Article Eight.)

WITHDRAWAL OF CASH

    Subject  to certain  limitations, cash  held by the  New Trustee  may (1) be
withdrawn by the Company (a) to the extent of the Cost or Fair Value  (whichever
is  less) of Unbonded Property Additions, after certain deductions and additions
primarily including adjustments to offset retirements, or (b) in an amount equal
to twenty-fifteenths (20/15ths)  of the aggregate  principal amount of  Mortgage
Bonds  that the Company would be entitled to issue on the basis of Retired Bonds
(with the  entitlement  to such  issuance  being  waived by  operation  of  such
withdrawal),  or (c) in  an amount equal to  twenty-fifteenths (20/15ths) of the
aggregate principal amount of  any Outstanding Mortgage  Bonds delivered to  the
New  Trustee, or  (2) upon  the request of  the Company,  be applied  to (a) the
purchase of Mortgage Bonds (at prices not exceeding twenty-fifteenths (20/15ths)
of the principal  amount thereof)  or (b) the  redemption or  payment at  Stated
Maturity  of Mortgage Bonds (with any Mortgage Bonds received by the New Trustee
pursuant to these  provisions being canceled  by the New  Trustee) (see  Section
8.06);  provided, however, that cash deposited  with the New Mortgage Trustee as
the basis for the authentication and delivery of Mortgage Bonds, as well as cash
representing a payment of principal of  Pledged Bonds, may only be withdrawn  in
an  amount equal to the aggregate principal amount of Mortgage Bonds the Company
would be entitled to issue on any  basis (with the entitlement to such  issuance
being  waived by operation of such withdrawal),  or may, upon the request of the
Company, be applied to the purchase, redemption or payment of Mortgage Bonds  at
prices  not  exceeding,  in the  aggregate,  the principal  amount  thereof (See
Sections 4.05 and 7.02).

CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

    The Company may not consolidate with or merge into any other corporation  or
convey,  transfer  or lease  the Mortgaged  Property as  or substantially  as an
entirety to any  person unless (a)  such transaction  is on such  terms as  will
fully  preserve the  lien and security  of the  New Mortgage and  the rights and
powers of the New  Mortgage Trustee and Holders,  (b) the corporation formed  by
such  consolidation or  into which  the Company  is merged  or the  person which
acquires by conveyance or transfer, or  which leases, the Mortgaged Property  as
or  substantially as an  entirety is a corporation  organized and existing under
the laws of the United  States of America or any  state or territory thereof  or
the  District of Columbia, and such corporation executes and delivers to the New
Mortgage Trustee a supplemental indenture, which contains an assumption by  such
corporation  of the due and punctual payment of the principal of and premium, if
any, and interest, if any, on the  Mortgage Bonds and the performance of all  of
the  covenants of the Company under the New Mortgage and which contains a grant,
conveyance, transfer and mortgage by the corporation confirming the lien of  the
New  Mortgage on the Mortgaged Property and subjecting to such lien all property
thereafter acquired by the

                                       25
<PAGE>
corporation which shall constitute an improvement, extension or addition to  the
Mortgaged  Property or a renewal, replacement or substitution of or for any part
thereof, and, at the election of the corporation, subjecting to the lien of  the
New  Mortgage  such other  property  then owned  or  thereafter acquired  by the
corporation as the corporation shall  specify, and (c) in  the case of a  lease,
such  lease will be made expressly subject  to termination by the Company or the
New Mortgage Trustee at any time during the continuance of an Event of  Default.
(See Section 13.01.)

    Other  than the security afforded by the  lien of the First Mortgage and the
New Mortgage and the restrictions on  the issuance of additional First  Mortgage
Bonds  and New Mortgage Bonds, there are  no provisions of the First Mortgage or
the New Mortgage which afford the holders of the Offered Bonds protection in the
event of a highly  leveraged transaction, reorganization, restructuring,  merger
or similar transaction involving the Company. Neither the First Mortgage nor the
New  Mortgage contain provisions  requiring the repurchase  of the Offered Bonds
upon a change in control of the Company.

MODIFICATION OF NEW MORTGAGE
    Without the consent of any Holders, the Company and the New Mortgage Trustee
may enter into  one or  more supplemental indentures  for any  of the  following
purposes:

        (a)  to evidence the succession of another person to the Company and the
    assumption by any such successor of the covenants of the Company in the  New
    Mortgage and in the Mortgage Bonds; or

        (b)  to add one or more covenants of the Company or other provisions for
    the benefit of  all Holders  or for  the benefit of  the Holders  of, or  to
    remain  in effect only so long as there shall be Outstanding, Mortgage Bonds
    of one or  more specified series,  or one  or more tranches  thereof, or  to
    surrender any right or power conferred upon the Company by the New Mortgage;
    or

        (c)  to correct or amplify  the description of any  property at any time
    subject to the lien  of the New  Mortgage, or better  to assure, convey  and
    confirm  to the New Mortgage Trustee any  property subject or required to be
    subjected to the lien of the New Mortgage, or to subject to the lien of  the
    New Mortgage additional property; or

        (d)  to convey, transfer and  assign to the New  Mortgage Trustee and to
    subject to the lien of the New Mortgage with the same force and effect as if
    included in the New Mortgage, property  of subsidiaries of the Company  used
    or  to be used for one or more  purposes which if owned by the Company would
    constitute property  used or  to be  used for  one or  more of  the  Primary
    Purposes of the Company's Business, which property shall for all purposes of
    the New Mortgage be deemed to be property of the Company, together with such
    other  provisions as may be appropriate  to express the respective rights of
    the New Mortgage Trustee and the Company in regard thereto; or

        (e) to change or eliminate any provision  of the New Mortgage or to  add
    any  new  provision  to the  New  Mortgage,  provided that  if  such change,
    elimination or addition adversely  affects the interests  of the Holders  of
    the  Mortgage Bonds of any  series or tranche in  any material respect, such
    change, elimination or addition will  become effective with respect to  such
    series  or tranche  only when  no Mortgage  Bond of  such series  or tranche
    remains outstanding under the New Mortgage; or

        (f) to establish the form or terms  of the Mortgage Bonds of any  series
    or tranche as permitted by the New Mortgage; or

        (g)  to provide for the authentication and delivery of bearer securities
    and coupons appertaining thereto representing interest, if any, thereon  and
    for  the procedures for  the registration, exchange  and replacement thereof
    and for the giving of notice to, and the solicitation of the vote or consent
    of, the  holders thereof,  and  for any  and  all other  matters  incidental
    thereto; or

        (h)  to  evidence and  provide for  the acceptance  of appointment  by a
    successor trustee or by a co-trustee or separate trustee; or

        (i) to provide  for the  procedures required  to permit  the Company  to
    utilize, at its option, a noncertificated system of registration for all, or
    any series or tranche of, the Mortgage Bonds; or

        (j)  to change any place where (1) the principal of and premium, if any,
    and interest, if any, on  the Mortgage Bonds of  any series, or any  tranche
    thereof,  will be  payable, (2)  any Mortgage  Bonds of  any series,  or any
    tranche thereof, may be  surrendered for registration  of transfer, (3)  any
    Mortgage Bonds

                                       26
<PAGE>
    of  any series, or any tranche thereof, may be surrendered for exchange, and
    (4) notices and demands to  or upon the Company  in respect of the  Mortgage
    Bonds  of any series,  or any tranche  thereof, and the  New Mortgage may be
    served; or

        (k) to  cure  any ambiguity,  to  correct or  supplement  any  provision
    therein  which may  be defective  or inconsistent  with any  other provision
    therein, or to make any  changes to the provisions  thereof or to add  other
    provisions  with  respect to  matters and  questions  arising under  the New
    Mortgage, so long as such other changes or additions do not adversely affect
    the interests of the Holders of Mortgage  Bonds of any series or tranche  in
    any material respect; or

        (l) to reflect changes in Generally Accepted Accounting Principles; or

        (m)  to provide the terms and  conditions of the exchange or conversion,
    at the  option of  the  holders of  Mortgage Bonds  of  any series,  of  the
    Mortgage  Bonds of such series for or into Mortgage Bonds of other series or
    stock or other securities of the Company or any other corporation; or

        (n) to change the  words "Mortgage Bonds" to  "First Mortgage Bonds"  in
    the  descriptive  title  of all  Outstanding  Bonds  at any  time  after the
    discharge of the First Mortgage; or

        (o) to comply with the rules  or regulations of any national  securities
    exchange on which any of the Mortgage Bonds may be listed; or

        (p) to modify Section 3.01(a) to increase the aggregate principal amount
    of  Mortgage Bonds  which may be  authenticated and delivered  under the New
    Mortgage. (See Section 14.01.)

    Without limiting the generality of the foregoing, if the Trust Indenture Act
is amended after  the date  of the  New Mortgage  in such  a way  as to  require
changes  to  the  New  Mortgage  or  the  incorporation  therein  of  additional
provisions or so  as to  permit changes to,  or the  elimination of,  provisions
which,  at the date of the New Mortgage or at any time thereafter, were required
by the Trust Indenture Act to be contained in the New Mortgage, the Company  and
the New Mortgage Trustee may, without the consent of any Holders, enter into one
or  more  supplemental indentures  to evidence  or  effect such  amendment. (See
Section 14.01.)

    Except as provided  above, the consent  of the  Holders of not  less than  a
majority  in aggregate principal amount of the Mortgage Bonds of all series then
Outstanding, considered as one class, is required for the purpose of adding  any
provisions  to, or changing in any manner,  or eliminating any of the provisions
of, the New Mortgage pursuant to one or more supplemental indentures;  provided,
however,  if  less than  all of  the  series of  Mortgage Bonds  Outstanding are
directly affected by a proposed supplemental indenture, then the consent only of
the Holders of a majority in aggregate principal amount of Outstanding  Mortgage
Bonds  of all  series so  directly affected,  considered as  one class,  will be
required; and provided, further, that if  the Mortgage Bonds of any series  have
been  issued in more than one tranche and if the proposed supplemental indenture
directly affects the rights of  the Holders of one or  more, but less than  all,
such  tranches, then the consent only of  the Holders of a majority in aggregate
principal amount of the Outstanding Mortgage  Bonds of all tranches so  directly
affected, considered as one class, will be required; and provided, further, that
no such amendment or modification may, without the consent of each Holder of the
Outstanding  New Mortgage of  each series or  tranche directly affected thereby,
(a) change  the Stated  Maturity of  the  principal of,  or any  installment  of
principal  of or interest on, any Mortgage  Bond, or reduce the principal amount
thereof or the rate  of interest thereon  (or the amount  of any installment  of
interest  thereon) or change the  method of calculating such  rate or reduce any
premium payable  upon  the redemption  thereof,  or  reduce the  amount  of  the
principal of a Discount Bond that would be due and payable upon a declaration of
acceleration  of maturity or change the coin  or currency (or other property) in
which any Mortgage Bond or  any premium or the  interest thereon is payable,  or
impair the right to institute suit for the enforcement of any such payment on or
after  the Stated Maturity thereof  (or, in the case  of redemption, on or after
the redemption date), (b) permit the creation  of any lien ranking prior to  the
lien  of  the New  Mortgage  with respect  to all  or  substantially all  of the
Mortgaged Property  or  terminate  the  lien  of the  New  Mortgage  on  all  or
substantially  all  of the  Mortgaged Property,  or deprive  such Holder  of the
benefit of  the  security of  the  lien of  the  New Mortgage,  (c)  reduce  the
percentage  in principal amount of the Outstanding Mortgage Bonds of such series
or tranche,  the consent  of  the Holders  of which  is  required for  any  such
supplemental

                                       27
<PAGE>
indenture,  or the consent of the Holder of  which is required for any waiver of
compliance with any provision of the New Mortgage or any default thereunder  and
its consequences, or reduce the requirements for quorum or voting, or (d) modify
certain  of  the  provisions  of  the  New  Mortgage  relating  to  supplemental
indentures, waiver  of  certain  covenants  and  waivers  of  past  defaults.  A
supplemental  indenture  which  changes  or  eliminates  any  covenant  or other
provision of the New Mortgage which  has expressly been included solely for  the
benefit of the Holders of, or which is to remain in effect only so long as there
shall  be Outstanding Mortgage Bonds of one  or more specified series, or one or
more tranches thereof, or modifies the  rights of the Holders of Mortgage  Bonds
of  such series or  tranches with respect  to such covenant  or other provision,
will be deemed not to affect the rights under the New Mortgage of the Holders of
the Mortgage Bonds of any other series or tranche. (See Section 14.02.)

WAIVER

    The Holders of  at least  a majority in  aggregate principal  amount of  all
Mortgage  Bonds  may  waive the  Company's  obligations to  comply  with certain
covenants,  including  the  Company's  obligation  to  maintain  its   corporate
existence  and  properties,  pay  taxes and  discharge  liens,  maintain certain
insurance and to make  such recordings and filings  as are necessary to  protect
the security of the Holders and the rights of the New Mortgage Trustee, provided
that such waiver occurs before the time such compliance is required. The Holders
of at least a majority of the aggregate principal amount of Outstanding Mortgage
Bonds  of all affected series  or tranches, considered as  one class, may waive,
before the time for such compliance, compliance with the Company's obligation to
maintain an office or agency where the Mortgage Bonds of such series or tranches
may  be  surrendered  for  payment,  registration,  transfer  or  exchange,  and
compliance  with  any  other  covenant  specified  in  a  supplemental indenture
respecting such series or tranches. (See Section 6.09.)

EVENTS OF DEFAULT

    Each of the following events constitutes  an Event of Default under the  New
Mortgage:

        (1)  failure to pay interest  on any Mortgage Bond  within 60 days after
    the same becomes due;

        (2) failure to pay  principal or premium, if  any, on any Mortgage  Bond
    within 15 days after its Maturity;

        (3)  failure to  perform or  breach of any  covenant or  warranty of the
    Company in the New Mortgage (other than  a covenant or a warranty a  default
    in the performance of which or breach of which is dealt with elsewhere under
    this  paragraph) for a period  of 60 days after there  has been given to the
    Company by the New Mortgage Trustee, or to the Company and the New  Mortgage
    Trustee  by the Holders of  at least 50% in  principal amount of Outstanding
    Mortgage Bonds,  a written  notice  specifying such  default or  breach  and
    requiring  it to be  remedied and stating  that such notice  is a "Notice of
    Default," unless the New Mortgage Trustee,  or the New Mortgage Trustee  and
    the  Holders  of a  principal amount  of  Mortgage Bonds  not less  than the
    principal amount of Mortgage Bonds the Holders of which gave such notice, as
    the case may be, agree  in writing to an extension  of such period prior  to
    its expiration; provided, however, that the New Mortgage Trustee, or the New
    Mortgage  Trustee and such  Holders, as the  case may be,  will be deemed to
    have agreed to  an extension of  such period if  corrective action has  been
    initiated by the Company within such period and is being diligently pursued;

        (4) certain events relating to reorganization, bankruptcy and insolvency
    of the Company and appointment of a receiver or trustee for its property; or

        (5)  the occurrence of  a Matured Event  of Default under  any Class "A"
    Mortgage; provided that  the waiver  or cure of  any such  Matured Event  of
    Default  and the rescission and annulment  of the consequences thereof shall
    constitute a waiver  of the  corresponding Event  of Default  under the  New
    Mortgage  and a rescission  and annulment of  the consequences thereof. (See
    Section 10.01.)

REMEDIES

    If an  Event of  Default occurs  and is  continuing, then  the New  Mortgage
Trustee  or  the Holders  of not  less than  a majority  in principal  amount of
Mortgage Bonds then Outstanding may declare the principal

                                       28
<PAGE>
amount (or  if  the Mortgage  Bonds  are Discount  Bonds,  such portion  of  the
principal  amount as  may be  provided for such  Discount Bonds  pursuant to the
terms of the New Mortgage) of all  of the Mortgage Bonds together with  premium,
if any, and interest accrued, if any, thereon to be immediately due and payable.
At  any time after such  declaration of the maturity  of the Mortgage Bonds then
Outstanding, but before the sale of any  of the Mortgaged Property and before  a
judgment  or decree  for payment of  money shall  have been obtained  by the New
Mortgage Trustee as provided in the New Mortgage, the Event or Events of Default
giving rise to such  declaration of acceleration will,  without further act,  be
deemed  to have  been waived,  and such  declaration and  its consequences will,
without further act, be deemed to have been rescinded and annulled, if:

        (a) the Company has  paid or deposited with  the New Mortgage Trustee  a
    sum sufficient to pay:

           (1)  all  overdue  interest,  if  any,  on  all  Mortgage  Bonds then
       Outstanding;

           (2) the principal of and premium, if any, on any Mortgage Bonds  then
       Outstanding  which have become due otherwise  than by such declaration of
       acceleration and  interest  thereon  at  the  rate  or  rates  prescribed
       therefor in such Mortgage Bonds; and

           (3)  all amounts due to the  New Mortgage Trustee as compensation and
       reimbursement as provided in the New Mortgage; and

        (b) any other Event or Events  of Default other than the non-payment  of
    the  principal of Mortgage Bonds which shall  have become due solely by such
    declaration of acceleration, shall have been cured or waived as provided  in
    the New Mortgage. (See Sections 10.02 and 10.17.)

    The  New  Mortgage provides  that, under  certain  circumstances and  to the
extent permitted by law, if  an Event of Default  occurs and is continuing,  the
New  Mortgage Trustee has the power to  take possession of, and to hold, operate
and manage, the Mortgaged Property, or with or without entry, sell the Mortgaged
Property. If the Mortgaged Property is sold, whether by the New Mortgage Trustee
or pursuant to judicial proceedings,  the principal of the Outstanding  Mortgage
Bonds,  if  not  previously  due, will  become  immediately  due,  together with
premium, if  any, and  any  accrued interest.  (See  Sections 10.03,  10.04  and
10.05.)

    If  an Event of Default occurs and  is continuing, the Holders of a majority
in principal amount of the Mortgage  Bonds then Outstanding will have the  right
to  direct the  time, method  and place  of conducting  any proceedings  for any
remedy available to the  New Mortgage Trustee or  exercising any trust or  power
conferred on the New Mortgage Trustee, provided that (a) such direction does not
conflict  with any rule of  law or with the New  Mortgage, and could not involve
the New Mortgage Trustee in personal liability in circumstances where  indemnity
would  not, in the New Mortgage Trustee's sole discretion, be adequate, (b) such
direction is not unduly prejudicial to  the rights of the nonassenting  Holders,
and  (c) the New Mortgage Trustee may take any other action deemed proper by the
New Mortgage  Trustee  which is  not  inconsistent with  such  discretion.  (See
Section 10.16.)

    The  New Mortgage provides that no Holder of any Mortgage Bond will have any
right to institute any  proceeding, judicial or otherwise,  with respect to  the
New  Mortgage, or for the appointment of a receiver or trustee, or for any other
remedy thereunder,  unless (a)  such  Holder has  previously  given to  the  New
Mortgage  Trustee  written notice  of  a continuing  Event  of Default;  (b) the
Holders of  not  less than  a  majority in  aggregate  principal amount  of  the
Mortgage  Bonds then Outstanding  have made written request  to the New Mortgage
Trustee to institute proceedings  in respect of such  Event of Default and  have
offered   the  New  Mortgage  Trustee  reasonable  indemnity  against  cost  and
liabilities incurred in complying with such  request; and (c) for 60 days  after
receipt  of such notice,  the New Mortgage  Trustee has failed  to institute any
such proceeding and no direction inconsistent  with such request has been  given
to  the  New Mortgage  Trustee during  such 60-day  period by  the Holders  of a
majority in  aggregate  principal amount  of  Mortgage Bonds  then  Outstanding.
Furthermore,  no Holder will be entitled to  institute any such action if and to
the extent  that such  action would  disturb or  prejudice the  rights of  other
Holders.  (See Section  10.11.) Notwithstanding  that the  right of  a Holder to
institute a proceeding with  respect to the New  Mortgage is subject to  certain
conditions  precedent, each Holder  of a Mortgage  Bond has the  right, which is
absolute and unconditional, to receive payment of the principal of and  premium,
if    any,   and    interest,   if   any,    on   such    Mortgage   Bond   when

                                       29
<PAGE>
due and to  institute suit for  the enforcement  of any such  payment, and  such
rights  may not  be impaired  without the consent  of such  Holder. (See Section
10.12.) The New Mortgage provides that the New Mortgage Trustee give the Holders
notice of any default under the New Mortgage to the extent required by the Trust
Indenture Act, unless such default shall have been cured or waived, except  that
no  such notice to Holders of a  default of the character described in paragraph
(3) under "Events of Default"  shall be given until at  least 45 days after  the
occurrence  thereof.  (See Section  11.02.)  The Trust  Indenture  Act currently
permits the  New Mortgage  Trustee to  withhold notice  of default  (except  for
certain  payment defaults) if the New  Mortgage Trustee in good faith determines
the withholding of such notice to be in the interests of the Holders.

    As a condition precedent to certain  actions by the New Mortgage Trustee  in
the enforcement of the lien of the New Mortgage and institution of action on the
Mortgage  Bonds, the New Mortgage Trustee may require adequate indemnity against
costs, expense  and liabilities  to be  incurred in  connection therewith.  (See
Sections 10.11 and 11.01.)

    In  addition to every other  right and remedy provided  in the New Mortgage,
the New Mortgage Trustee may exercise any  right or remedy available to the  New
Mortgage  Trustee in  its capacity  as owner and  holder of  Pledged Bonds which
arises as a result of a default or Matured Event of Default under any Class  "A"
Mortgage,  whether or not  an Event of  Default under the  New Mortgage has then
occurred and is continuing. (See Section 10.20.)

DEFEASANCE

    Any Mortgage Bond or Bonds, or any portion of the principal amount  thereof,
will  be deemed  to have  been paid for  purposes of  the New  Mortgage, and the
entire indebtedness of  the Company in  respect thereof will  be deemed to  have
been  satisfied and discharged, if there has been irrevocably deposited with the
New Mortgage Trustee, in trust: (a) money (including Funded Cash) in the  amount
which  will be  sufficient, or  (b) Eligible  Obligations (as  described below),
which do not contain  provisions permitting the  redemption or other  prepayment
thereof  at the option of the issuer  thereof, the principal of and the interest
on which when  due, without  any regard  to reinvestment  thereof, will  provide
monies  which will be sufficient, or (c) a combination of (a) and (b) which will
be sufficient,  to pay  when  due the  principal of  and  premium, if  any,  and
interest,  if any,  due and  to become  due on  such Mortgage  Bond or  Bonds or
portions thereof. (See  Section 9.01.)  For this  purpose, Eligible  Obligations
include direct obligations of, or obligations unconditionally guaranteed by, the
United  States of America, entitled to the  benefit of the full faith and credit
thereof, and  certificates,  depositary  receipts  or  other  instruments  which
evidence  a direct  ownership interest  in such  obligations or  in any specific
interest or principal payments due in respect thereof.

    While there is no  legal precedent directly on  point, it is possible  that,
for  federal  income tax  purposes, any  deposit  contemplated in  the preceding
paragraph could be treated as a  taxable exchange of the related Mortgage  Bonds
for  an issue of obligations of  the trust or a direct  interest in the cash and
securities held in the trust. In that case, Holders of such Mortgage Bonds would
recognize gain or loss  as if the  trust obligations or  the cash or  securities
deposited,  as the case may  be, had actually been  received by them in exchange
for their Mortgage Bonds. Such Holders  thereafter would be required to  include
in  income a  share of  the income,  gain or  loss of  the trust.  The amount so
required to be included in income could be different from the amount that  would
be includible in the absence of such deposit. Prospective investors are urged to
consult  their own tax advisors as to  the specific consequences to them of such
deposit.

RESIGNATION OF THE NEW MORTGAGE TRUSTEE

    The New Mortgage  Trustee may resign  at any time  by giving written  notice
thereof  to the Company or may be removed at any time by Act of the Holders of a
majority in principal amount of Mortgage Bonds then Outstanding delivered to the
New Mortgage  Trustee and  the Company.  No resignation  or removal  of the  New
Mortgage Trustee and no appointment of a successor trustee will become effective
until  the acceptance of  appointment by a successor  trustee in accordance with
the requirements  of the  New Mortgage.  In addition,  so long  as no  Event  of
Default  or event which, after notice or lapse of time, or both, would become an
Event of Default has occurred and is continuing, under certain circumstances, if
the Company has delivered to the New Mortgage Trustee a resolution of its  Board
of Directors appointing a successor trustee

                                       30
<PAGE>
and such successor has accepted such appointment in accordance with the terms of
the  New Mortgage, the New Mortgage Trustee  will be deemed to have resigned and
the successor will  be deemed to  have been appointed  as trustee in  accordance
with the New Mortgage. (See Section 11.10.)

CONCERNING THE NEW MORTGAGE TRUSTEE

    The  Chase Manhattan  Bank (N.A.), the  Trustee under the  New Mortgage, has
been a regular depositary of funds of the Company. As trustee under both the New
Mortgage and the First  Mortgage, The Chase Manhattan  Bank (N.A.) would have  a
conflicting  interest for  purposes of  the Trust Indenture  Act if  an Event of
Default were to  occur under  either mortgage. In  that case,  the New  Mortgage
Trustee  may be  required to  eliminate such  conflicting interest  by resigning
either as New  Mortgage Trustee or  as First Mortgage  Trustee. There are  other
instances  under the Trust Indenture Act  which would require the resignation of
the New  Mortgage Trustee,  such as  an affiliate  of the  New Mortgage  Trustee
acting as underwriter with respect to any of the Mortgage Bonds.

TRANSFER

    The transfer of the Mortgage Bonds may be registered, and Mortgage Bonds may
be  exchanged  for other  Mortgage  Bonds of  the  same series  and  tranche, of
authorized denominations and of  like tenor and  aggregate principal amount,  at
the  office  of The  Chase  Manhattan Bank  (N.A.),  as Bond  Registrar  for the
Mortgage Bonds, in  Brooklyn, New  York. The Company  may change  the place  for
registration  of  transfer  of  the  Mortgage Bonds,  may  appoint  one  or more
additional Bond  Registrars (including  the  Company) and  may remove  any  Bond
Registrar,  all at its discretion. (See Section 6.02.) The applicable Prospectus
Supplement will  identify  any  new  place  for  registration  of  transfer  and
additional  Bond Registrar appointed, and will  disclose the removal of any Bond
Registrar effected, prior to the date  of such Prospectus Supplement. Except  as
otherwise  provided in the  applicable Prospectus Supplement,  no service charge
will be made for any transfer or exchange of the Mortgage Bonds, but the Company
may require payment of a sum sufficient  to cover any tax or other  governmental
charge  that may be imposed  in connection with any  registration of transfer or
exchange of the Mortgage Bonds. The Company  will not be required to issue,  and
no  Bond Registrar will be required to  register, the transfer of or to exchange
(a) Mortgage Bonds of any series (including the Mortgage Bonds) during a  period
of  15 days prior to  giving any notice of redemption,  or (b) any Mortgage Bond
selected for redemption in  whole or in part,  except the unredeemed portion  of
any Mortgage Bond being redeemed in part. (See Section 3.05.)

                DESCRIPTION OF THE SUBORDINATED DEBT SECURITIES

    The following description sets forth certain general terms and provisions of
the  Subordinated Debt Securities to which any Prospectus Supplement may relate.
The particular  terms  of  the  Subordinated  Debt  Securities  offered  by  any
Prospectus  Supplement and the extent,  if any, to which  such general terms and
provisions may apply  to the  Subordinated Debt  Securities so  offered will  be
described in the Prospectus Supplement relating to such Debt Securities.

    The  Subordinated Debt Securities may be issued, in one or more series, from
time to time under an  Indenture dated as of  August 1, 1995 (the  "Indenture"),
between  the  Company  and The  Chase  Manhattan  Bank (N.A.),  as  trustee (the
"Indenture Trustee"), which shall act as  indenture trustee for the purposes  of
the  Trust Indenture Act of 1939, as amended. The form of the Indenture is filed
as an exhibit  to the  Registration Statement.  Capitalized terms  used in  this
section  which  are not  otherwise  defined in  this  Prospectus shall  have the
meanings set forth in the Indenture.

    The following  summaries  of certain  provisions  of the  Subordinated  Debt
Securities  and the Indenture do not purport  to be complete and are subject to,
and are qualified in their entirety  by express reference to all the  provisions
of the Indenture, including the definitions therein of certain terms.

GENERAL

    The  Subordinated Debt  Securities will  be direct,  unsecured, subordinated
obligations of the Company.

    The Indenture does not limit the aggregate principal amount of  Subordinated
Debt  Securities that  may be issued  thereunder and  provides that Subordinated
Debt Securities may be issued thereunder from time to

                                       31
<PAGE>
time in one or more series. The Subordinated Debt Securities are issuable in one
or more  series  pursuant to  an  indenture supplement  to  the Indenture  or  a
resolution  of the Company's  Board of Directors or  a special committee thereof
(each, a "Supplemental Indenture").

    The Restated Certificate of Incorporation of the Company limits, subject  to
certain  exceptions, the amount  of unsecured indebtedness  that the Company may
issue or assume, without the consent of  the holders of a majority of the  total
number of shares of preferred stock then outstanding, to 25% of the aggregate of
(i)  the total  principal amount  of all  outstanding bonds  or other securities
representing secured indebtedness  of the  Company, and  (ii) the  total of  the
capital  stocks and  premiums thereon  and the  surplus of  the Company  as then
stated on the Company's books. At June  30, 1995, the Company could have  issued
approximately  $64 million of  unsecured indebtedness (such  as the Subordinated
Debt Securities) without violating this provision.

    Reference is made to the Prospectus Supplement relating to any  Subordinated
Debt  Securities  being offered  for, among  other  things, the  following terms
thereof: (1) the title of the Subordinated Debt Securities; (2) any limit on the
aggregate principal  amount  of  such  Subordinated  Debt  Securities;  (3)  the
percentage  of the principal  amount at which  such Subordinated Debt Securities
will be issued and, if other than  the principal amount thereof, the portion  of
the  principal amount thereof payable upon acceleration of the maturity thereof,
or the method by which such portion  shall be determined; (4) the date or  dates
on which the principal of such Subordinated Debt Securities will be payable; (5)
the  rights, if  any, to  defer payments  of interest  on the  Subordinated Debt
Securities by extending the  interest payment period, and  the duration of  such
extensions;  (6) the subordination terms of  the Subordinated Debt Securities of
such series; (7) the  rate or rates at  which such Subordinated Debt  Securities
will  bear  interest,  or  the method  by  which  such rate  or  rates  shall be
determined, and the date or dates from which such interest shall accrue, or  the
method  by which such date or dates shall  be determined; (8) the dates on which
such interest will  be payable  and the Regular  Record Dates  for any  Interest
Payment  Dates and  the basis  on which  interest shall  be calculated;  (9) the
dates, if any,  on which, the  price or  prices at which  the Subordinated  Debt
Securities  may, pursuant to any mandatory  or optional sinking fund provisions,
be redeemed  by the  Company and  other detailed  terms and  provisions of  such
sinking  funds; (10) the date,  if any, after which, and  the price or prices at
which, the Subordinated Debt Securities may, pursuant to any optional redemption
provisions, be redeemed at the option of  the Company or of the Holder  thereof,
and  other  detailed  terms and  provisions  of such  optional  redemption; (11)
whether and under what circumstances the Company will pay Additional Amounts  as
contemplated  by  Section  1005  of  the  Indenture  on  such  Subordinated Debt
Securities to  any Holder  who is  not  a United  States person  (including  any
modification  to the definition of such term as provided for in the Indenture as
originally executed) in respect  to any tax,  assessment or governmental  charge
and, if so, whether the Company will have the option to redeem such Subordinated
Debt  Securities rather than pay  such Additional Amounts (and  the terms of any
such option); (12)  any deletions  from, modifications  of or  additions to  the
Events  of Default or covenants of the Company with respect to such Subordinated
Debt Securities,  whether  or  not  such Events  of  Default  or  covenants  are
consistent  with the Events of  Default or covenants set  forth herein; (13) any
security for such Subordinated Debt Securities; and (14) any other terms of such
Subordinated Debt Securities. For  a description of the  terms of any series  of
the  Subordinated Debt Securities, reference must be made to both the Prospectus
Supplement  relating  thereto  and  to  the  description  of  Subordinated  Debt
Securities set forth herein.

    Unless  otherwise indicated  in the Prospectus  Supplement relating thereto,
the Subordinated Debt  Securities will  be issued  in United  States dollars  in
fully  registered form, without coupons, in denominations of $25 or any integral
multiple thereof. No service charge will be made for any transfer or exchange of
the Subordinated Debt Securities, but the  Company may require payment of a  sum
sufficient  to cover any tax or  other governmental charge payable in connection
therewith.

    Unless otherwise indicated  in the Prospectus  Supplement relating  thereto,
the  principal  of,  and  any  premium or  interest  on,  the  Subordinated Debt
Securities will  be  payable,  and  the Subordinated  Debt  Securities  will  be
exchangeable and transfers thereof will be registrable, at the Place of Payment;
provided  that, at the option of the Company, payment of interest may be made by
check mailed to the address of the person entitled thereto as it appears in  the
Security Register.

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<PAGE>
    The Indenture does not contain any provisions that may afford the Holders of
Subordinated  Debt  Securities protection  in the  event  of a  highly leveraged
transaction or  other  transaction  involving  the Company  that  may  occur  in
connection  with a takeover attempt resulting in  a decline in the credit rating
of the Subordinated  Debt Securities. The  Indenture also does  not contain  any
provisions that would limit the ability of the Company to incur indebtedness.

REGISTRATION AND TRANSFER

    Subordinated  Debt Securities  will be  issued as  Registered Securities and
either will be in certificated form or will be represented by Global Securities.
Registered Securities  will be  issuable in  denominations of  $25 and  integral
multiples  of $25 or in such  other denominations as may be  in the terms of the
Subordinated Debt Securities.

    Registered Securities will be  exchangeable for other Registered  Securities
of  the  same series  and  of a  like aggregate  principal  amount and  tenor of
different authorized denominations. Registered  Securities may be presented  for
registration  of transfer (duly endorsed or  accompanied by a written instrument
of transfer), at  the corporate  trust office of  the Indenture  Trustee in  New
York, New York, or at the office of any transfer agent designated by the Company
for  such purpose with respect to any series of Subordinated Debt Securities and
referred to in any Prospectus Supplement. No service charge will be made for any
transfer or  exchange  of Subordinated  Debt  Securities, but  the  Company  may
require  payment of  a sum  sufficient to  cover any  tax or  other governmental
charge payable in connection therewith.  If any Prospectus Supplement refers  to
any  transfer agent (in addition to  the Indenture Trustee) initially designated
by the Company with respect to  any series of Subordinated Debt Securities,  the
Company  may at any time  rescind the designation of  any such transfer agent or
approve a change in the location at  which any such transfer agent acts,  except
that,  if  Subordinated  Debt Securities  of  a  series are  issuable  solely as
Registered Securities, the Company will be required to maintain a transfer agent
in each Place of Payment for such series. The Company may at any time  designate
additional  transfer  agents with  respect to  any  series of  Subordinated Debt
Securities.

    In the event  of any  redemption of  any Subordinated  Debt Securities,  the
Company  shall  not be  required  to: (i)  issue,  register the  transfer  of or
exchange any  Subordinated Debt  Securities  during a  period beginning  at  the
opening of business 15 days before any selection of Subordinated Debt Securities
of  that series to be redeemed and ending at the close of business on the day of
mailing of the relevant notice of  redemption; (ii) register the transfer of  or
exchange  any  Subordinated  Debt  Securities, or  portion  thereof,  called for
redemption, except  the unredeemed  portion of  any Subordinated  Debt  Security
being redeemed in part; or (iii) issue, register the transfer of or exchange any
Subordinated  Debt Securities  that has  been surrendered  for repayment  at the
option of the Holder, except the portion if any, thereof not to be so repaid.

GLOBAL SECURITIES

    The Subordinated Debt Securities of  a series may be  issued in whole or  in
part  in the  form of  one or more  Global Securities  (as such  term is defined
below), which  will  be deposited  with,  or on  behalf  of, a  depositary  (the
"Depositary") or its nominee identified in the applicable Prospectus Supplement.
In  such case, one or more Global Securities will be issued in a denomination or
aggregate denomination equal to the portion of the aggregate principal amount of
outstanding Subordinated Debt Securities of the series to be represented by such
Global Security or Global Securities. Unless and until it is exchanged in  whole
or  in  part  for Subordinated  Debt  Securities  in registered  form,  a Global
Security may not be registered for transfer or exchange except as (i) a whole by
the Depositary for such Global  Security to a nominee  of such Depositary, by  a
nominee  of  such  Depositary to  such  Depositary  or another  nominee  of such
Depositary or by such Depositary, or by any nominee to a successor Depositary or
a nominee of such successor Depositary, and (ii) in the circumstances  described
in  the applicable Prospectus Supplement. The  term "Global Security," when used
with respect  to  any series  of  Subordinated  Debt Securities,  means  a  Debt
Security  that is executed by the Company and authenticated and delivered by the
Indenture Trustee to the Depositary or pursuant to the Depositary's instruction,
which shall be registered in the name of the Depositary or its nominee and which
shall represent, and shall  be denominated in an  amount equal to the  aggregate
principal amount of, all

                                       33
<PAGE>
of  the Outstanding Subordinated  Debt Securities of such  series or any portion
thereof, in either case  having the same  terms, including, without  limitation,
the  same original  issue date,  date or  dates on  which principal  is due, and
interest rate or method of determining the interest rate.

    The specific terms of the depositary arrangement with respect to any portion
of a  series of  Subordinated Debt  Securities  to be  represented by  a  Global
Security  will be described in the applicable Prospectus Supplement. The Company
expects that the following provisions will apply to depositary arrangements.

    Unless  otherwise  specified  in   the  applicable  Prospectus   Supplement,
Subordinated  Debt Securities that are to be represented by a Global Security to
be deposited with or on behalf of  a Depositary will be represented by a  Global
Security  registered in  the name  of such Depositary  or its  nominee. Upon the
issuance of such Global Security, and  the deposit of such Global Security  with
or  on behalf of  the Depositary for  such Global Security,  the Depositary will
credit on  its  book-entry  registration  and  transfer  system  the  respective
principal amounts of the Subordinated Debt Securities represented by such Global
Security to the accounts of institutions that have accounts with such Depositary
or  its nominee ("participants"). The accounts to be credited will be designated
by the underwriters or agents of  such Subordinated Debt Securities or, if  such
Subordinated  Debt Securities are  offered and sold directly  by the Company, by
the Company. Ownership of beneficial interests  in such Global Security will  be
limited to participants or persons that may hold interests through participants.
Ownership  of beneficial interests by participants  in such Global Security will
be shown on, and the transfer of  that ownership interest will be effected  only
through,  records maintained  by the Depositary  or its nominee  for such Global
Security. Ownership of beneficial interests  in such Global Security by  persons
that  hold  through participants  will be  shown  on, and  the transfer  of that
ownership interest  within  such  participant will  be  effected  only  through,
records  maintained by such participant. The  laws of some jurisdictions require
that certain purchasers of securities take physical delivery of such  securities
in  certificated form.  The foregoing limitations  and such laws  may impair the
ability to transfer beneficial interests in such Global Securities.

    So long as  the Depositary for  a Global  Security, or its  nominee, is  the
registered  owner of such  Global Security, such Depositary  or such nominee, as
the case may be, will be considered the sole owner or Holder of the Subordinated
Debt Securities represented by such Global  Security for all purposes under  the
Indenture.  Unless otherwise specified in  the applicable Prospectus Supplement,
owners of beneficial interests in such  Global Security will not be entitled  to
have  Subordinated  Debt Securities  of the  series  represented by  such Global
Security registered in their names, will  not receive or be entitled to  receive
physical delivery of Subordinated Debt Securities of such series in certificated
form  and will not be considered the  Holders thereof for any purposes under the
Indenture. Accordingly, each person owning a beneficial interest in such  Global
Security  must rely on the  procedures of the Depositary  and, if such person is
not a  participant, on  the procedures  of the  participant through  which  such
person owns its interest to exercise any rights of a Holder under the Indenture.
The  Company understands that under existing  industry practices, if the Company
requests any action  of Holders or  an owner  of a beneficial  interest in  such
Global  Security  desires to  give any  notice or  take any  action a  Holder is
entitled to  give  or  take  under the  Indenture,  then  the  Depositary  would
authorize  the  participants  to  give  such notice  or  take  such  action, and
participants would authorize beneficial owners owning through such  participants
to  give  such  notice or  take  such action  or  would otherwise  act  upon the
instructions of beneficial owners owning through them.

    Principal of  and any  premium and  interest on  a Global  Security will  be
payable in the manner described in the applicable Prospectus Supplement.

CONSOLIDATION, MERGER AND SALE

    The  Indenture does not  contain any covenant  which restricts the Company's
ability to merge  or consolidate  with or into  any other  corporation, sell  or
convey all or substantially all of its assets to any person, firm or corporation
or otherwise engage in restructuring transactions.

EVENTS OF DEFAULT

    The  Indenture provides,  with respect  to any  series of  Subordinated Debt
Securities outstanding thereunder, that any one or more of the following  events
that has occurred and is continuing shall constitute an

                                       34
<PAGE>
Event  of  Default: (i)  default  in the  payment of  any  interest upon  or any
Additional Amounts payable in respect of any Subordinated Debt Security of  that
series,  or of any  coupon appertaining thereto,  when the same  becomes due and
payable and continues for 30 days; provided, however, that, a valid extension of
the interest payment period by the Company for the Subordinated Debt  Securities
shall  not constitute a default in the payment of interest for this purpose, and
provided further that,  if Subordinated  Debt Securities  are issued  to a  NWPS
Trust,  or a  trustee of such  trust, in  connection with the  issuance of Trust
Securities by such NWPS Trust, said 30-day period will be replaced by a  ten-day
period;  (ii) default in the  payment of the principal of  or any premium on any
Subordinated Debt Security of  that series when due,  whether at maturity,  upon
redemption,  by  declaration  or  otherwise; provided,  however,  that,  a valid
extension of  the  maturity  of  the  Subordinated  Debt  Securities  shall  not
constitute  a default  for this  purpose; (iii)  default in  the deposit  of any
sinking fund payment,  when and as  due by  the terms of  any Subordinated  Debt
Securities  of that  series; (iv)  default in the  performance or  breach of any
covenant or  agreement of  the Company  in  the Indenture  with respect  to  any
Subordinated  Debt Security of that series,  continued for 60 days after written
notice to the Company from the Indenture Trustee or from the holders of at least
25% of the outstanding Subordinated Debt Securities of that series; (v)  certain
events  in bankruptcy,  insolvency or  reorganization of  the Company;  (vi) the
voluntary or involuntary dissolution, winding-up or termination of a NWPS  Trust
to  which (or to a trustee of  such trust to which) Subordinated Debt Securities
were issued in  connection with the  issuance of Trust  Securities by such  NWPS
Trust,   except  in  connection  with  the  distribution  of  Subordinated  Debt
Securities to the holders of Trust Securities in liquidation of such NWPS Trust,
the redemption of all  of the Trust  Securities of such  NWPS Trust, or  certain
mergers,  consolidations or amalgamations, each  as permitted by the Declaration
of such NWPS Trust; and (vii) any  other Event of Default provided with  respect
to  Subordinated Debt Securities of that series. The Company is required to file
annually with the Indenture Trustee an officer's certificate as to the Company's
compliance with all conditions and covenants under the Indenture. The  Indenture
provides  that  the Indenture  Trustee  may withhold  notice  to the  Holders of
Subordinated Debt Securities of any default, except in the case of a default  on
the  payment  of the  principal  of (or  premium), if  any,  or interest  on any
Subordinated Debt Securities or the payment of any sinking fund installment with
respect to such Subordinated Debt Securities if it considers it in the  interest
of the Holders of Subordinated Debt Securities to do so.

    If  an  Event  of  Default,  other  than  certain  events  with  respect  to
bankruptcy, insolvency  and reorganization  of the  Company or  any  Significant
Subsidiary,   occurs  and  is  continuing  with  respect  to  Subordinated  Debt
Securities of a particular series, the  Indenture Trustee or the Holders of  not
less than 25% in principal amount of Outstanding Subordinated Debt Securities of
that  series may  declare the Outstanding  Subordinated Debt  Securities of that
series due  and payable  immediately. If  an Event  of Default  with respect  to
certain events of bankruptcy, insolvency or reorganization of the Company or any
Significant  Subsidiary  with  respect  to  Subordinated  Debt  Securities  of a
particular series shall occur and be  continuing, then the principal of all  the
Outstanding  Subordinated Debt Securities of that series, and accrued and unpaid
interest thereon, shall automatically be due and payable without any act on  the
part of the Indenture Trustee or any Holder.

    Subject  to the provisions relating to  the duties of the Indenture Trustee,
if an  Event  of Default  with  respect to  Subordinated  Debt Securities  of  a
particular series occurs and is continuing, the Indenture Trustee shall be under
no obligation to exercise any of its rights or powers under the Indenture at the
request  or direction of any  of the Holders of  Subordinated Debt Securities of
such series, unless  such Holders shall  have offered to  the Indenture  Trustee
reasonable  indemnity and security  against the costs,  expenses and liabilities
that might be incurred by  it in compliance with  such request. Subject to  such
provisions  for the indemnification  of the Indenture Trustee,  the Holders of a
majority in principal amount of the Outstanding Subordinated Debt Securities  of
such  series  shall have  the  right to  direct the  time,  method and  place of
conducting any  proceeding for  any remedy  available to  the Indenture  Trustee
under the Indenture, or exercising any trust or power conferred on the Indenture
Trustee  with respect  to the Subordinated  Debt Securities of  that series. The
Indenture Trustee may refuse  to follow directions in  conflict with law or  the
Indenture that may involve the Indenture Trustee in personal liability or may be
unduly prejudicial to Holders not joining therein.

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<PAGE>
    The  Holders  of  not  less  than a  majority  in  principal  amount  of the
Outstanding Subordinated Debt  Securities of any  series may, on  behalf of  the
Holders  of all the Subordinated Debt Securities  of such series and any related
coupons, waive any past default under the Indenture with respect to such  series
and  its consequences, except a  default (i) in the  payment of the principal of
(or premium, if any) or interest on or Additional Amounts payable in respect  of
any Subordinated Debt Security of such series unless such default has been cured
and  a sum sufficient to pay all  matured installments of interest and principal
due otherwise than by acceleration and any applicable premium has been deposited
with the Indenture Trustee or  (ii) in respect of  a covenant or provision  that
cannot  be  modified  or amended  without  the  consent of  the  Holder  of each
Outstanding Subordinated Debt Security of such series affected thereby.

MODIFICATION OR WAIVER

    Modification and amendment of the Indenture  may be made by the Company  and
the  Indenture  Trustee with  the  consent of  the Holders  of  not less  than a
majority in principal amount of all Outstanding Subordinated Debt Securities  or
any  series that are affected by  such modification or amendment; provided that,
no such modification or amendment may, without the consent of the Holder of each
Outstanding Subordinated Debt Security of  such series, among other things,  (i)
change  the Stated Maturity of the principal of  (or premium, if any, on) or any
installment of principal  of or interest  on any Subordinated  Debt Security  of
such  series, (ii) reduce the principal amount or the rate of interest on or any
Additional Amounts  payable in  respect  of, or  any  premium payable  upon  the
redemption  of, any  Subordinated Debt  Security of  such series,  or change the
redemption provisions  of  any Subordinated  Debt  Securities (iii)  change  any
obligation  of  the  Company  to  pay  Additional  Amounts  in  respect  of  any
Subordinated Debt Security of such series,  (iv) reduce the amount of  principal
of  a  Subordinated Debt  Security  of such  series  that is  an  Original Issue
Discount  Security  and  would  be  due  and  payable  upon  a  declaration   of
acceleration  of  the  Maturity  thereof,  (v)  adversely  affect  any  right of
repayment at the option of the Holder of any Subordinated Debt Security of  such
series,  (vi) change the  place or currency  of payment of  principal of, or any
premium or interest  on, any Subordinated  Debt Security of  such series,  (vii)
impair the right to institute suit for the enforcement of any such payment on or
after  the  Stated Maturity  thereof or  any Redemption  Date or  Repayment Date
therefor, (viii) reduce  the above-stated percentage  of Holders of  Outstanding
Subordinated  Debt Securities  of such series  necessary to modify  or amend the
Indenture or to consent to any waiver thereunder or reduce the requirements  for
voting  or quorum described below, (ix) modify the change of control provisions,
if any, or  (x) modify the  foregoing requirements or  reduce the percentage  of
Outstanding  Subordinated Debt Securities of such  series necessary to waive any
past default.

    Modification and amendment of the Indenture  may be made by the Company  and
the  Indenture  Trustee  without the  consent  of  any Holder,  for  any  of the
following purposes: (i)  to evidence  the succession  of another  person to  the
Company  as obligor  under the Indenture;  (ii) to  add to the  covenants of the
Company for the benefit of the Holders of all or any series of Subordinated Debt
Securities; (iii) to add Events of Default for the benefit of the Holders of all
or any series of Subordinated Debt  Securities; (iv) to change or eliminate  any
provisions  of the Indenture, provided that any such change or elimination shall
become effective only when there are no Outstanding Subordinated Debt Securities
of any series created  prior thereto that  are entitled to  the benefit of  such
provision; (v) to establish the form or terms of Subordinated Debt Securities of
any  series; (vi) to  secure the Subordinated Debt  Securities; (vii) to provide
for the acceptance of appointment by a successor Indenture Trustee or facilitate
the administration of the trusts under the Indenture by more than one  Indenture
Trustee;  and (viii) to  close the Indenture with  respect to the authentication
and delivery of additional  series of Subordinated Debt  Securities, or to  cure
any  ambiguity, defect or  inconsistency in the  Indenture, provided such action
does  not  adversely  affect  the  interest  of  Holders  of  Subordinated  Debt
Securities of any series.

CERTAIN COVENANTS

    If  Subordinated Debt Securities are issued to  a NWPS Trust or a trustee of
such trust in  connection with  the issuance of  Trust Securities  by such  NWPS
Trust and (i) there shall have occurred any event that would constitute an Event
of  Default or (ii) the Company shall be  in default with respect to its payment
of any obligations under the  related Guarantee or Common Securities  Guarantee,
then  (a)  the  Company  shall  not  declare or  pay  dividends  on,  or  make a
distribution with  respect  to  or  redeem,  purchase  or  acquire,  or  make  a

                                       36
<PAGE>
liquidation  payment with  respect to,  any of  its capital  stock, and  (b) the
Company shall not make any payment of interest, principal or premium, if any, on
or repay, repurchase or  redeem any debt securities  issued by the Company  that
rank  pari passu with or junior  to such Subordinated Debt Securities; provided,
however, that, restriction (a) above does not apply to any stock dividends  paid
by  the Company where the dividend stock is  the same stock as that on which the
dividend is being paid.

    If Subordinated Debt Securities are issued to  a NWPS Trust or a trustee  of
such  trust in  connection with  the issuance of  Trust Securities  by such NWPS
Trust, and the Company shall have given notice of its election to defer payments
of interest  on such  Subordinated  Debt Securities  by extending  the  interest
payment  period as provided in  the Indenture and such  period, or any extension
thereof, shall  be continuing  then (a)  the Company  shall not  declare or  pay
dividends  on, or  make a  distribution with respect  to or  redeem, purchase or
acquire, or  make a  liquidation payment  with respect  to, any  of its  capital
stock,  and (b) the Company shall not make any payment of interest, principal or
premium, if any, on or repay, repurchase or redeem any debt securities issued by
the Company  that rank  pari passu  with  or junior  to such  Subordinated  Debt
Securities; provided, however, that, the restriction (a) above does not apply to
any stock dividends paid by the Company, where the dividend stock is the same as
that on which the dividend is being paid.

    If  Subordinated Debt Securities are issued to  a NWPS Trust or a trustee of
such trust in  connection with  the issuance of  Trust Securities  by such  NWPS
Trust, for so long as such Trust Securities remain outstanding, the Company will
covenant  (i) to  directly or indirectly  maintain 100% ownership  of the Common
Securities of such NWPS Trust;  provided, however, that any permitted  successor
of  the Company under  the Indenture may  succeed to the  Company's ownership of
such Common Securities and (ii) to use its reasonable efforts to cause such NWPS
Trust (a) to remain  a statutory business trust,  except in connection with  the
distribution  of Subordinated Debt Securities to the holders of Trust Securities
in liquidation of such NWPS Trust, the redemption of all of the Trust Securities
of such NWPS Trust, or certain mergers, consolidations or amalgamations, each as
permitted by the Declaration of such  NWPS Trust, and (b) to otherwise  continue
to  be  classified as  a  grantor trust  for  United States  federal  income tax
purposes.

SECURITY AND SUBORDINATION

    Any security for the Subordinated Debt  Securities will be described in  the
Prospectus Supplement that will accompany this Prospectus. The Subordinated Debt
Securities  will be subordinated and junior in right of payment to certain other
indebtedness of the Company to the extent set forth in the Prospectus Supplement
that will accompany this Prospectus.

GOVERNING LAW

    The Indenture and the Subordinated Debt Securities will be governed by,  and
construed in accordance with, the internal laws of the State of New York.

INFORMATION CONCERNING THE INDENTURE TRUSTEE

    The  Indenture Trustee,  prior to default,  undertakes to  perform only such
duties as are specifically set forth in the Indenture and, after default,  shall
exercise  the same degree of care as  a prudent individual would exercise in the
conduct of his  or her  own affairs. Subject  to such  provision, the  Indenture
Trustee is under no obligation to exercise any of the powers vested in it by the
Indenture  at the request of any  holder of Subordinated Debt Securities, unless
offered reasonable  indemnity by  such holder  against the  costs, expenses  and
liabilities  that  might  be  incurred thereby.  The  Indenture  Trustee  is not
required to expand or risk its  own funds or otherwise incur personal  financial
liability  in the performance of its  duties if the Indenture Trustee reasonably
believes that repayment or adequate indemnity is not reasonably assured to it.

DEFEASANCE

    The Indenture provides  that, except as  may be provided  in respect of  any
series of Subordinated Debt Securities, the provisions of Article Fourteen shall
apply  to the  Subordinated Debt  Securities of any  series and  the Company may
elect either to  (a) except in  respect of any  Subordinated Debt Securities  to
which  a NWPS Trust  or a trustee  of such trust  is the holder,  defease and be
discharged from any and all obligations  with respect to such Subordinated  Debt
Securities  (except for the obligation  to pay Additional Amounts,  if any, to a
holder who is not a United States  person upon the occurrence of certain  events
of tax, assessment or

                                       37
<PAGE>
governmental   charge  with  respect  to  payments  on  such  Subordinated  Debt
Securities and the  obligations to  register the  transfer or  exchange of  such
Subordinated Debt Securities, to replace temporary or mutilated, destroyed, lost
or  stolen  Subordinated Debt  Securities, to  maintain an  office or  agency in
respect of such Subordinated Debt Securities, and to hold moneys for payment  in
trust)  ("Defeasance") or (b)  be released from its  obligations with respect to
such Subordinated Debt Securities under Section 1402 or, if provided pursuant to
Section 1403  of  the Indenture,  its  obligations  with respect  to  any  other
covenant,  and any omission to comply with such obligations shall not constitute
a default  or  an  Event of  Default  with  respect to  such  Subordinated  Debt
Securities ("covenant defeasance"), in either case, upon the irrevocable deposit
by  the Company  with the  Indenture Trustee  (or other  qualifying trustee), in
trust, of an amount, in such Currency in which such Subordinated Debt Securities
are then specified as payable at Stated Maturity, or Government Obligations  (as
defined  below), or both, applicable to  such Subordinated Debt Securities (with
such applicability being determined on the basis of the currency, currency  unit
or  composite  currency  in which  such  Subordinated Debt  Securities  are then
specified as payable at Stated Maturity) which through the scheduled payment  of
principal  and interest in accordance with their  terms will provide money in an
amount sufficient to pay the principal of (and premium, if any) and interest, if
any, on such  Subordinated Debt Securities,  and any mandatory  sinking fund  or
analogous payments thereon, on the scheduled due dates therefor.

    Such a trust may only be established if, among other things, the Company has
delivered  to the Indenture Trustee  an Opinion of Counsel  (as specified in the
Indenture) to the effect that the  Holders of such Subordinated Debt  Securities
will  not recognize income,  gain or loss  for United States  federal income tax
purposes as  a result  of such  defeasance or  covenant defeasance  and will  be
subject  to United States  federal income tax  on the same  amounts, in the same
manner and at the same times as would  have been the case if such defeasance  or
covenant defeasance had not occurred; provided that, such Opinion of Counsel, in
the case of defeasance under clause (a) above, must refer to and be based upon a
revenue  ruling of the Internal Revenue Service or a change in applicable United
States federal income tax law occurring after the date of the Indenture.

    "Government Obligations" means securities that are (i) direct obligations of
the  government  that  issued  the  Currency  in  which  the  Subordinated  Debt
Securities of a particular series are payable, for the payment of which its full
faith  and credit  is pledged,  or (ii)  obligations of  a person  controlled or
supervised by and acting as an agency or instrumentality of the government  that
issued the Currency in which the Subordinated Debt Securities of such series are
payable,  the payment of which is unconditionally guaranteed as a full faith and
credit obligation by  the United  States of  America or  such other  government,
which,  in either  case, are  not callable  or redeemable  at the  option of the
issuer thereof, and shall also include a depository receipt issued by a bank  or
trust  company as custodian with respect to  any such Government Obligation or a
specific payment of interest on or  principal of any such Government  Obligation
held  by such custodian for  the account of the  holder of a depository receipt;
provided that (except as  required by law) such  custodian is not authorized  to
make  any deduction  from the  amount payable to  the holder  of such depository
receipt from any amount received by  the custodian in respect of the  Government
Obligation or the specific payment of interest in or principal of the Government
Obligation evidenced by such depository receipt.

    Unless  otherwise  provided  in  the Prospectus  Supplement,  if,  after the
Company has deposited funds and/or  Government Obligations to effect  defeasance
or  covenant  defeasance  relating  thereto with  respect  to  Subordinated Debt
Securities of any series, (a) the Holder of a Subordinated Debt Security of such
series is entitled to and does elect, pursuant to the terms of such Subordinated
Debt Security, to receive payment  in a currency other  than that in which  such
deposit  has been made in respect of  such Subordinated Debt Security or (b) the
currency in which such deposit has been made in respect of any Subordinated Debt
Security of such series ceases  to be used by  its government of issuance,  then
the  indebtedness represented by such Subordinated Debt Security shall be deemed
to have been, and will be, fully discharged and satisfied through the payment of
the  principal  of  (and  premium,  if  any)  and  interest,  if  any,  on  such
Subordinated  Debt Security as  they become due  out of the  proceeds yielded by
converting the amount so deposited in respect of such Subordinated Debt Security
into  the   Currency  in   which  such   Subordinated  Debt   Security   becomes

                                       38
<PAGE>
payable  as a result  of such election or  such cessation of  usage based on the
applicable Market Exchange  Rate. Unless  otherwise provided  in the  Prospectus
Supplement,  all payments of principal of (and premium, if any) and interest, if
any, and Additional Amounts, if any,  on any Subordinated Debt Security that  is
payable  in  a Foreign  Currency that  ceases to  be used  by its  government of
issuance shall be made in U. S. Dollars.

    In the event the Company effects covenant defeasance with respect to (i) any
Subordinated Debt Securities and any related coupons and (ii) such  Subordinated
Debt  Securities are declared due  and payable because of  the occurrence of any
Event of Default, other than the Event  of Default described in clause (iii)  or
(v)  under "Events of Default," with respect to any covenant for which there has
been defeasance, the Currency and/or Government Obligations on deposit with  the
Indenture  Trustee will  be sufficient to  pay amounts due  on such Subordinated
Debt Securities at the time of their  Stated Maturity but may not be  sufficient
to  pay amounts  due on  such Subordinated  Debt Securities  at the  time of the
acceleration resulting from such  Event of Default.  However, the Company  would
remain liable to make payment of such amounts due at the time of acceleration.

    The  Prospectus  Supplement may  further  describe the  provisions,  if any,
permitting such defeasance or  covenant defeasance, including any  modifications
to  the  provisions  described  above, with  respect  to  the  Subordinated Debt
Securities of or within a particular series and any related coupons.

MISCELLANEOUS

    The Company will have the right at all times to assign any of its respective
rights or obligations under the Indenture  to a direct or indirect  wholly-owned
subsidiary  of the Company; provided, that, in the event of any such assignment,
the Company will remain liable for all of their respective obligations.  Subject
to the foregoing, the Indenture will be binding upon and inure to the benefit of
the  parties thereto and their respective  successors and assigns. The Indenture
provides that it may not otherwise be assigned by the parties thereto.

                    DESCRIPTION OF THE PREFERRED SECURITIES

    Each NWPS Trust may issue, from time  to time, only one series of  Preferred
Securities having terms described in the Prospectus Supplement relating thereto.
The  Declaration of each NWPS Trust authorizes the Regular Trustees of such NWPS
Trust to issue on behalf of such NWPS Trust one series of Preferred  Securities.
The Declaration will be qualified as an indenture under the Trust Indenture Act.
The   Preferred  Securities  will  have  such  terms,  including  distributions,
redemption, voting, liquidation  rights and  such other  preferred, deferred  or
other  special  rights  or  such  restrictions as  shall  be  set  forth  in the
Declaration or made part of the Declaration by the Trust Indenture Act.

    Reference is made  to the  Prospectus Supplement relating  to the  Preferred
Securities  of a  NWPS Trust for  specific terms, including  (i) the distinctive
designation  of  such  Preferred  Securities,  (ii)  the  number  of   Preferred
Securities  issued by  such NWPS Trust,  (iii) the annual  distribution rate (or
method of determining such  rate) for Preferred Securities  issued by such  NWPS
Trust  and the  date or  dates upon  which such  distributions shall  be payable
(provided, however, that,  distributions on such  Preferred Securities shall  be
payable  on a quarterly  basis to holders  of such Preferred  Securities as of a
record  date  in  each  quarter  during  which  such  Preferred  Securities  are
outstanding),  (iv) whether distributions on Preferred Securities issued by such
NWPS Trust shall be cumulative, and, in the case of Preferred Securities  having
such  cumulative distribution rights, the date or dates or method of determining
the date or  dates from which  distributions on Preferred  Securities issued  by
such  NWPS Trust shall be  cumulative, (v) the amount  or amounts which shall be
paid out of the assets of such NWPS Trust to the holders of Preferred Securities
of such  NWPS Trust  upon voluntary  or involuntary  dissolution, winding-up  or
termination  of such NWPS Trust, (vi) the obligation, if any, of such NWPS Trust
to purchase or  redeem Preferred Securities  issued by such  NWPS Trust and  the
price  or prices at which, the period or  periods within which and the terms and
conditions upon which Preferred  Securities issued by such  NWPS Trust shall  be
purchased  or redeemed, in whole or in  part, pursuant to such obligation, (vii)
the voting rights, if any, of Preferred Securities issued by such NWPS Trust  in
addition  to those required by law, including  the number of votes per Preferred
Security and any

                                       39
<PAGE>
requirement for  the approval  by the  holders of  Preferred Securities,  or  of
Preferred  Securities  issued  by one  or  more NWPS  Trusts  or of  both,  as a
condition to specified  action or  amendments to  the Declaration  of such  NWPS
Trust,   and  (viii)   any  other  relevant   rights,  preferences,  privileges,
limitations or restrictions of  Preferred Securities issued  by such NWPS  Trust
consistent  with the Declaration of such NWPS Trust, or with applicable law. All
Preferred Securities offered  hereby will be  guaranteed by the  Company to  the
extent  set forth  below under "Description  of the  Guarantees." Certain United
States federal income tax considerations applicable to any offering of Preferred
Securities will be described in the Prospectus Supplement relating thereto.

    In connection with  the issuance  of Preferred Securities,  each NWPS  Trust
will  issue one series of Common Securities.  The Declaration of each NWPS Trust
authorizes the Regular Trustees of  each trust to issue  on behalf of such  NWPS
Trust one series of Common Securities having such terms including distributions,
redemption,  voting, liquidation  rights or  such restrictions  as shall  be set
forth therein. The terms of the Common Securities issued by a NWPS Trust will be
substantially identical to the terms of the Preferred Securities issued by  such
NWPS  Trust and the Common Securities will rank pari passu, and payments will be
made thereon pro rata with the  Preferred Securities except that, upon an  event
of  default  under the  Declaration, the  rights  of the  holders of  the Common
Securities to payment in respect of distributions and payments upon liquidation,
redemption and otherwise will  be subordinated to the  rights of the holders  of
the  Preferred Securities. Except  in certain limited  circumstances, the Common
Securities will also carry the right to  vote and to appoint, remove or  replace
any of the NWPS Trustees of a NWPS Trust. All of the Common Securities of a NWPS
Trust will be directly or indirectly owned by the Company.

                         DESCRIPTION OF THE GUARANTEES

    Set  forth below is a summary  of information concerning the Guarantees that
will be executed and delivered  by the Company for  the benefit of the  holders,
from  time to time, of Preferred Securities. Each Guarantee will be qualified as
an indenture under the Trust Indenture Act. Wilmington Trust Company will act as
indenture trustee under each Guarantee  (the "Guarantee Trustee"). The terms  of
each  Guarantee will be those set forth in each Guarantee and those made part of
each Guarantee by the Trust  Indenture Act. The summary  does not purport to  be
complete  and is subject in all respects  to the provisions of, and is qualified
in its entirety by  reference to, the  form of Guarantee, which  is filed as  an
exhibit to the Registration Statement of which this Prospectus forms a part, and
the  Trust Indenture Act. Each  Guarantee will be held  by the Guarantee Trustee
for the benefit  of the holders  of the Preferred  Securities of the  applicable
NWPS Trust.

GENERAL

    Pursuant to each Guarantee, the Company will irrevocably and unconditionally
agree,  to the extent  set forth herein,  to pay in  full to the  holders of the
Preferred Securities issued by a NWPS Trust, the Guarantee Payments (as  defined
herein)  (except  to the  extent  paid by  such NWPS  Trust),  as and  when due,
regardless of any  defense, right  of set-off  or counterclaim  which such  NWPS
Trust  may  have or  assert. The  following payments  with respect  to Preferred
Securities issued by a NWPS Trust (the "Guarantee Payments"), to the extent  not
paid  by such NWPS Trust will be subject to the Guarantee (without duplication):
(i) any accrued and unpaid  distributions that are required  to be paid on  such
Preferred  Securities, to the extent the Company  has made a payment of interest
or principal on  the Subordinated  Debt Securities, (ii)  the redemption  price,
including  all accrued and  unpaid distributions to the  date of redemption (the
"Redemption Price"), to the extent the Company has made a payment of interest or
principal on the  Subordinated Debt  Securities, with respect  to any  Preferred
Securities  called for redemption by such NWPS Trust, and (iii) upon a voluntary
or involuntary dissolution, winding-up or termination of such NWPS Trust  (other
than  in connection with the distribution of Subordinated Debt Securities to the
holders of  Preferred Securities  or  the redemption  of  all of  the  Preferred
Securities  upon the maturity or redemption of the Subordinated Debt Securities)
the lesser of (a) the  aggregate of the liquidation  amount and all accrued  and
unpaid  distributions on such Preferred Securities to the date of payment to the
extent such NWPS Trust has funds  legally available therefor and (b) the  amount
of   assets  of  such  NWPS  Trust   remaining  available  for  distribution  to

                                       40
<PAGE>
holders of such  Preferred Securities  in liquidation  of such  NWPS Trust.  The
Company's  obligation to  make a  Guarantee Payment  may be  satisfied by direct
payment of  the required  amounts by  the Company  to the  holders of  Preferred
Securities or by causing such NWPS Trust to pay such amounts to such holders.

    Each  Guarantee will be  a full and unconditional  guarantee with respect to
the Preferred Securities issued  by the applicable NWPS  Trust from the time  of
issuance  of such  Preferred Securities  but will  not apply  to any  payment of
distributions due  to  the extent  such  NWPS  Trust shall  lack  funds  legally
available  therefor as a result of a failure  by the Company to make payments of
interest or principal on the Subordinated  Debt Securities. If the Company  does
not make interest payments on the Subordinated Debt Securities purchased by such
NWPS  Trust,  such  NWPS  Trust  will not  pay  distributions  on  the Preferred
Securities issued by  a NWPS  Trust and will  not have  funds legally  available
therefor. See "Description of the Subordinated Debt Securities."

    The  Company and NWPS Capital believe that  the rights of the holders of the
Preferred Securities and the obligations  of the Company under the  Declaration,
the  Guarantees, the Preferred Securities, the Common Securities, the Indenture,
the Supplemental  Indenture and  the Subordinated  Debt Securities  collectively
provide  the substantial equivalent of a full and unconditional guarantee by the
Company of payments due on the Preferred Securities.

    The Company has also agreed to irrevocably and unconditionally guarantee the
obligations of  the NWPS  Trusts  with respect  to  the Common  Securities  (the
"Common  Securities Guarantee")  to the  same extent  as the  Guarantees, except
that, upon  an  event of  default  under  the Indenture,  holders  of  Preferred
Securities  under  the Guarantees  shall have  priority  over holders  of Common
Securities under the Common Securities Guarantees with respect to  distributions
and payments on liquidation, redemption or otherwise.

CERTAIN COVENANTS OF THE COMPANY

    In  each Guarantee, the Company will covenant that, so long as any Preferred
Securities issued  by the  applicable NWPS  Trust remain  outstanding, if  there
shall  have occurred any event  that would constitute an  event of default under
such Guarantee or the Declaration of such NWPS Trust, then (a) the Company shall
not declare or pay any dividend on, or make any distribution with respect to, or
redeem, purchase, acquire or make a liquidation payment with respect to, any  of
its  capital stock and (b)  the Company shall not  make any payment of interest,
principal or  premium,  if any,  on  or repay,  repurchase  or redeem  any  debt
securities  issued by the Company  which rank pari passu  with or junior to such
Subordinated Debt  Securities.  However, each  Guarantee  will except  from  the
foregoing any stock dividends paid by the Company where the dividend stock is of
the same as that on which the dividend is being paid.

MODIFICATION OF THE GUARANTEES; ASSIGNMENT

    Except  with respect to any changes  that do not materially adversely affect
the rights of holders  of Preferred Securities  (in which case  no vote will  be
required),  each Guarantee may  be amended only  with the prior  approval of the
holders of  not less  than 66  2/3%  in liquidation  amount of  the  outstanding
Preferred  Securities  issued  by  the  applicable  NWPS  Trust.  The  manner of
obtaining any such approval of holders of such Preferred Securities will be  set
forth  in an accompanying  Prospectus Supplement. All  guarantees and agreements
contained in  a  Guarantee  shall bind  the  successors,  assignees,  receivers,
trustees  and representatives of the  Company and shall inure  to the benefit of
the holders  of the  Preferred  Securities of  the  applicable NWPS  Trust  then
outstanding.

EVENTS OF DEFAULT

    An  Event of Default under the Guarantee  will occur upon the failure of the
Company to perform  any of  its payments  or other  obligations thereunder.  The
holders of a majority in liquidation amount of the Preferred Securities to which
a  Guarantee relates  have the  right to  direct the  time, method  and place of
conducting any proceeding for any remedy  available to the Guarantee Trustee  in
respect  of  the Guarantee  or  to direct  the exercise  of  any trust  or power
conferred upon the Guarantee Trustee under the Guarantee.

    If the Guarantee  Trustee fails  to enforce  such Guarantee,  any holder  of
Preferred Securities relating to such Guarantee may, after such holder's written
request    to    the    Guarantee   Trustee    to    enforce    the   Guarantee,

                                       41
<PAGE>
institute a  legal  proceeding  directly  against the  Company  to  enforce  the
Guarantee  Trustee's  rights under  such Guarantee  without first  instituting a
legal proceeding against the relevant NWPS  Trust, the Guarantee Trustee or  any
other person or entity.

    The  Company will be required to provide annually to the Guarantee Trustee a
statement as to  the performance by  the Company of  certain of its  obligations
under each of the Guarantees and as to any default in such performance.

    The  Company  is required  to file  annually with  the Guarantee  Trustee an
officer's certificate as to the  Company's compliance with all conditions  under
each of the Guarantees.

INFORMATION CONCERNING THE GUARANTEE TRUSTEE

    The  Guarantee Trustee, prior to the  occurrence of a default, undertakes to
perform only such  duties as are  specifically set forth  in the Guarantee  and,
after  default with respect  to a Guarantee,  shall exercise the  same degree of
care as a prudent  individual would exercise  in the conduct of  his or her  own
affairs. Subject to such provision, the Guarantee Trustee is under no obligation
to  exercise any  of the  powers vested in  it by  a Guarantee  Agreement at the
request of any holder  of Preferred Securities unless  it is offered  reasonable
indemnity  against the  costs, expenses and  liabilities that  might be incurred
thereby.

TERMINATION OF THE GUARANTEES

    Each Guarantee will terminate as to  the Preferred Securities issued by  the
applicable NWPS Trust upon full payment of the Redemption Price of all Preferred
Securities  of  the  NWPS  Trust, upon  distribution  of  the  Subordinated Debt
Securities held by the NWPS Trust to the holders of the Preferred Securities  of
such  NWPS Trust, or upon full payment of the amounts payable in accordance with
the Declaration of  such NWPS Trust  upon liquidation of  such NWPS Trust.  Each
Guarantee  will continue to be effective or  will be reinstated, as the case may
be, if at any time any holder  of Preferred Securities issued by the  applicable
NWPS Trust must restore payment of any sums paid under such Preferred Securities
or such Guarantee.

STATUS OF THE GUARANTEES

    Each  Guarantee will constitute  an unsecured obligation  of the Company and
will rank  (i)  subordinate  and  junior  in  right  of  payment  to  all  other
liabilities  of the Company, (ii)  pari passu with the  most senior preferred or
preference stock now or hereafter issued  by the Company and with any  guarantee
now  or hereafter  entered into by  the Company  in respect of  any preferred or
preference stock  of any  affiliate of  the  Company, and  (iii) senior  to  the
Company's  common stock. The terms of the Preferred Securities provide that each
holder of Preferred  Securities issued  by a  NWPS Trust  by acceptance  thereof
agrees  to  the  subordination  provisions and  other  terms  of  the applicable
Guarantee.

    Each Guarantee will constitute a guarantee of payment and not of  collection
(allowing  the guaranteed party to institute a legal proceeding directly against
the guarantor to  enforce its  rights under  a Guarantee  without instituting  a
legal proceeding against any other person or entity).

GOVERNING LAW

    The  Guarantee  will be  governed by  and construed  in accordance  with the
internal laws of the State of New York.

                        DESCRIPTION OF THE COMMON STOCK

GENERAL

   
    Under the Company's Restated Certificate  of Incorporation, as amended  (the
"Charter"),  the Company is authorized to  issue three classes of capital stock:
300,000 shares of Cumulative Preferred Stock, par value $100 per share, of which
26,000 shares of 4 1/2% Cumulative Preferred  Stock and 40,000 shares of 5  1/4%
Cumulative  Preferred Stock are outstanding; 200,000 shares of Preference Stock,
par value $50 per share, none of which are outstanding; and 20,000,000 shares of
Common Stock, par value $3.50 per share, 7,677,232 of which were outstanding  as
of  August 14, 1995. The Cumulative Preferred Stock and the Preference Stock may
be issued at any time by the Board  of Directors in such series with such  terms
as it may fix in resolutions providing for the issuance thereof.
    

                                       42
<PAGE>
    The following statements are summaries of certain provisions relating to the
Common  Stock  contained  in  the Charter,  the  Company's  First  Mortgage Bond
Indenture, as supplemented to date (the "1940 Indenture"), and the Company's New
Mortgage (the 1940  Indenture and  the New  Mortgage Indenture  are referred  to
together as the "Bond Indentures"). Such summaries are not complete descriptions
of  the provisions of the  Charter and the Bond  Indentures and are qualified in
their entirety by  reference thereto. The  Charter and the  Bond Indentures  are
contained  in exhibits  to reports and  registration statements  which have been
filed with the Commission (see "Available Information").

DIVIDEND RIGHTS

    Subject to  the limitations  described in  the following  three  paragraphs,
dividends  may be paid  on the Common  Stock out of  funds legally available for
that purpose, when and as declared by the Company's Board of Directors.

    The Company may not declare or pay cash dividends on the Common Stock unless
full dividends on  all Cumulative Preferred  Stock and on  any Preference  Stock
then  outstanding for the  current and all past  quarterly dividend periods have
been paid or provided for. Also, dividends  on the Common Stock may not be  paid
unless  the Company  has complied with  all sinking fund  requirements for those
series of the  Cumulative Preferred Stock  and any Preference  Stock which  have
such requirements.

   
    Under  the  terms  of the  Charter,  for  so long  as  shares  of Cumulative
Preferred Stock are outstanding, the  following dividend limitations may not  be
exceeded  unless  authorized by  the holders  of  two-thirds of  the outstanding
shares of such stock: dividends (other  than dividends payable in Common  Stock)
and  other distributions on, or acquisitions by the Company for value of, Common
Stock (a) may not exceed  50% of the Company's  Net Income Available for  Common
Stock  for the preceding 12-months'  period if the "common  stock equity" of the
Company is less than 20% of "total capitalization" (each calculated as  required
by  the  Charter)  and  (b) may  not  exceed  75%  of such  Net  Income  if such
capitalization ratio is 20%  or more but less  than 25%. If such  capitalization
ratio  is 25% or  more, no such  dividend, distribution or  acquisition shall be
declared, paid  or effected  which would  reduce such  ratio to  less than  25%,
except  to  the extent  permitted  by clauses  (a)  and (b).  Pursuant  to these
provisions, at  June 30,  1995,  retained earnings  were  not restricted  as  to
availability  for cash dividends  on the Common Stock  and the Company's "common
stock equity" was 48% of its "total capitalization".
    

   
    The Bond Indentures  and certain purchase  agreements relating to  presently
outstanding  Cumulative  Preferred Stock  contain  covenants limiting  the funds
available for payment of  cash dividends and other  distributions on the  Common
Stock  (for payment as well as purchases  of Common Stock by the Company). Under
the most restrictive  of existing covenants  in the Bond  Indentures or in  such
purchase  agreements, at June 30, 1995, a total of approximately $46,027,000 was
available for cash dividends  on the Common Stock.  In addition, under the  1940
Indenture  cash dividends on the Common Stock  and purchases of Common Stock may
be made only if the aggregate  amount expended for maintenance and provided  for
depreciation  by  the Company  subsequent to  January 1,  1946, plus  Net Income
Available for Common Stock earned after  December 31, 1945, which remains  after
such dividend (or purchase) is equal to not less than the total of 3 1/2% of the
fixed  tangible property, plant and equipment of the Company for each full year,
and a proportionate percentage for any fractional year, which shall have elapsed
between January 1, 1946, and the date of such proposed action.
    

VOTING RIGHTS

    Of the three classes of the  Company's authorized capital stock, the  Common
Stock  is the general voting stock. Holders  of Common Stock are entitled to one
vote for each share held. Except in  the case of certain dividend arrearages  on
the Cumulative Preferred Stock or Preference Stock, the Common Stock is the only
class of stock entitled to be voted for the election of directors.

LIQUIDATION RIGHTS

    In  the  event  of  a  liquidation  (whether  voluntary  or  involuntary) or
reduction in the Company's  capital resulting in any  distribution of assets  to
its   stockholders,  the   holders  of   the  Common   Stock  are   entitled  to

                                       43
<PAGE>
receive, pro rata according  to the number  of shares held by  each, all of  the
assets of the Company remaining for distribution after payment to the holders of
the  Cumulative Preferred  Stock and Preference  Stock of  the full preferential
amounts to which they are entitled.

CERTAIN OTHER FEATURES

    Holders of Common Stock do not have any preemptive right to subscribe to  or
acquire any additional stock or other securities issued by the Company.

TRANSFER AGENTS AND REGISTRARS

    The  Transfer Agent  and Registrars for  the Common Stock  are Norwest Bank,
Minnesota, and the Company.

PROVISIONS WITH POSSIBLE ANTI-TAKEOVER EFFECTS

    The Company's Charter currently provides for the classification of the Board
of Directors into three classes. The Charter limits the number of directors that
may be elected to  not less than  nine nor more than  twelve (exclusive of  such
number  of Directors  as may be  elected by any  class of shares  of the Company
other than  the Common  Stock on  account of  specified dividend  arrearages  in
accordance  with  the  Charter) and  provides  that  vacancies on  the  Board of
Directors are to be filled by a majority vote of directors and that directors so
chosen shall hold office until  the end of the full  term of the class in  which
the  vacancy occurred. A vote of the holders of 75% of the Company's outstanding
voting stock  is required  to amend  these provisions.  In addition,  under  the
Charter  and the Delaware General Corporation  Law, directors of the Company may
only be  removed for  cause. Removal  for cause  must be  approved by  either  a
majority  vote  of directors  (excluding the  director  or directors  subject to
removal) or by a  vote of the holders  of at least a  majority of the  Company's
outstanding voting stock.

    In  addition, the  "fair price provisions"  of Charter  require that certain
proposed business combinations  between the Company  and any person  who is  the
beneficial  owner  of more  than 10%  of  the outstanding  voting shares  of the
Company (an "interested party") must  be approved by the  holders of 75% of  the
voting  shares, unless certain fair price and procedural requirements are met or
the business combination is  approved by a  majority of "Continuing  Directors,"
those directors who were elected prior to the time a person became an interested
person  and any other  director so designated  by such directors.  A vote of the
holders of 75% of  the Company's outstanding voting  stock is required to  amend
the fair price provisions.

                                 LEGAL OPINIONS

    The  validity of the  Offered Securities offered hereby  will be passed upon
for the Company and the NWPS Trusts by Schiff Hardin & Waite, 7200 Sears  Tower,
233  South Wacker Drive, Chicago, Illinois  60606. Certain legal matters will be
passed upon for any underwriters, dealers or agents by Winthrop, Stimson, Putnam
& Roberts, One Battery Park Plaza, New York, New York 10004. Certain matters  of
Delaware law relating to the validity of the Preferred Securities will be passed
upon  by  Richards,  Layton  & Finger,  Wilmington,  Delaware,  special Delaware
counsel to the Company and  the NWPS Trusts. Schiff Hardin  & Waite may rely  on
the  opinion of Richards, Layton & Finger as to certain matters of Delaware law.
Legal opinions relating to the  Company's franchises, titles to its  properties,
the  lien of the  New Mortgage and the  lien of the  First Mortgage (and certain
other matters)  will be  given as  to South  Dakota law  by Churchill,  Manolis,
Freeman, Kludt & Kaufman, Huron, South Dakota, local counsel for the Company, as
to  Nebraska law by  Shamberg, Wolf, McDermott &  Depue, Grand Island, Nebraska,
local counsel for  the Company, as  to North  Dakota law by  Pearce and  Durick,
Bismarck,  North Dakota, local  counsel for the  Company, and as  to Iowa law by
Nymann & Kohl, Sioux City, Iowa, local counsel for the Company.

    The statements  made in  this Prospectus  as  to matters  of law  and  legal
conclusions  under the captions "The NWPS  Trusts", "Description of the Mortgage
Bonds", "Description of the Subordinated  Debt Securities", "Description of  the
Preferred  Securities", "Description of the  Guarantees" and "Description of the
Common Stock" have  been prepared  under the  supervision of,  and reviewed  by,
Schiff  Hardin & Waite, counsel for the Company, and such statements are made on
the authority of that firm.

                                       44
<PAGE>
                                    EXPERTS

    The audited financial statements of the Company incorporated by reference in
this Prospectus have  been audited  by Arthur Andersen  LLP, independent  public
accountants   as  indicated  in  their  report  with  respect  thereto  and  are
incorporated by reference herein in reliance upon the authority of said firm  as
experts in auditing and accounting in giving such report.

                              PLAN OF DISTRIBUTION

    The  Company may sell the  Offered Securities in any  of the following ways:
(i) through  underwriters, dealers  or agents,  including Morgan  Stanley &  Co.
Incorporated;  (ii) directly to  a limited number  of purchasers or  to a single
purchaser; (iii) through agents; or (iv)  through any combination of the  above.
The  Prospectus Supplement,  with respect  to the  respective Offered Securities
will set forth the  terms of the offering  of the Offered Securities,  including
the  name or  names of  any underwriters,  dealers or  agents, the  price to the
public of the Offered Securities and the proceeds to the Company from such sale,
any  underwriting   discounts  and   other  items   constituting   underwriters'
compensation, any initial public offering price and any discounts or concessions
allowed  or reallowed or paid to dealers.  Any initial public offering price and
any discounts or  concessions allowed  or reallowed or  paid to  dealers may  be
changed from time to time.

    If  underwriters  are  used in  the  sale,  the Offered  Securities  will be
acquired by the underwriters for their own  account and may be resold from  time
to  time in  one or more  transactions, including negotiated  transactions, at a
fixed public offering price or at varying prices determined at the time of sale.
The Offered Securities may be offered to the public either through  underwriting
syndicates  represented by one or more  managing underwriters or directly by one
or more  underwriters.  The  underwriter  or  underwriters  with  respect  to  a
particular  underwritten offering  of Offered  Securities will  be named  in the
Prospectus  Supplement  relating  to  such  offering  and,  if  an  underwriting
syndicate is used, the managing underwriter or underwriters will be set forth on
the  cover page of such Prospectus Supplement. Unless otherwise set forth in the
Prospectus Supplement relating  hereto, the obligations  of the underwriters  to
purchase  the Offered Securities will be subject to certain conditions precedent
and the underwriters will be obligated to purchase all the Offered Securities if
any are purchased.

    If dealers are utilized in the sale of the Offered Securities in respect  of
which  this  Prospectus  is  delivered,  the  Company  will  sell  such  Offered
Securities to  the dealers  as  principals. The  dealers  may then  resell  such
Offered  Securities to  the public  at varying prices  to be  determined by such
dealers at the time  of resale. The names  of the dealers and  the terms of  the
transaction will be set forth in the Prospectus Supplement relating thereto.

    The Offered Securities may be sold directly by the Company or through agents
designated  by the Company from time to time. Any agent involved in the offer or
sale of the Offered Securities in respect to which this Prospectus is  delivered
will  be named, and any commissions payable by the Company to such agent will be
set forth  in  the  Prospectus Supplement  relating  thereto.  Unless  otherwise
indicated  in the  Prospectus Supplement,  any such  agent will  be acting  on a
reasonable efforts basis for the period of its appointment.

    The Offered Securities may be sold directly by the Company to  institutional
investors  or others, who may be deemed to be underwriters within the meaning of
the Securities Act with  respect to any  resale thereof. The  terms of any  such
sales will be described in the Prospectus Supplement relating thereto.

    Agents,  dealers and underwriters  may be entitled  under agreements entered
into with the Company  to indemnification by the  Company against certain  civil
liabilities,  including liabilities under the Securities Act, or to contribution
with respect  to payments  which such  agents, dealers  or underwriters  may  be
required  to make  in respect thereof.  Agents, dealers and  underwriters may be
customers of, engage in transactions with,  or perform services for the  Company
in the ordinary course of business.

    Each  series of Offered  Securities will be  a new issue  of securities and,
unless listed  on  a national  securities  exchange, will  have  no  established
trading    market.   Any    underwriter   to   whom    Offered   Securities   of

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<PAGE>
any series are  sold for  public offering  and sale may  make a  market in  such
series  of Offered Securities, but such underwriters will not be obligated to do
so and may  discontinue any  market making  at any  time without  notice. If  so
indicated in the Prospectus Supplement for any series of Offered Securities, the
Offered  Securities  of  such series  may  be  listed on  a  national securities
exchange. No assurance  can be  given as  to the  liquidity of,  or the  trading
market for, any Offered Securities.

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