NORTHWEST NATURAL GAS CO
S-3/A, 1997-04-22
NATURAL GAS DISTRIBUTION
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      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 22, 1997
         
                                                   Registration  No. 333-15323
     ==========================================================================
                         SECURITIES AND EXCHANGE COMMISSION
                                WASHINGTON, D.C. 20549
                                 -------------------
        
                                   AMENDMENT NO. 1
         
                                          TO
                                       FORM S-3
                                REGISTRATION STATEMENT
                                        UNDER
                              THE SECURITIES ACT OF 1933
                                 -------------------

                            NORTHWEST NATURAL GAS COMPANY
                (Exact name of registrant as specified in its charter)

                 OREGON                                 93-0256722
    (State or other jurisdiction of        (I.R.S. Employer Identification No.)
     incorporation or organization)

          One Pacific Square, 220 N.W. Second Avenue, Portland, Oregon 97209
                                     503-226-4211
     (Address, including zip code, and telephone number, including area code, of
     registrant's principal executive offices)

                                 -------------------
                                  RICHARD G. REITEN
                                      President
        
                             and Chief Executive Officer
         
                      One Pacific Square, 220 N.W. Second Avenue
                               Portland, Oregon  97209
                                     503-226-4211
            BRUCE R. DeBOLT                         JOHN T. HOOD, Esq.
    Senior Vice President, Finance,                  Reid & Priest LLP
      and Chief Financial Officer                   40 West 57th Street
One Pacific Square, 220 N.W. Second Avenue       New York, New York  10019
        Portland, Oregon  97209                        212-603-2000
              503-226-4211
       (Names, addresses, including zip codes, and telephone numbers, including
        area codes, of agents for service)
                                 -------------------
             Approximate date of commencement of proposed sale to the
          public:  From time to time after this Registration Statement
          becomes effective as determined by market conditions.

             If the only securities being registered on this Form are being
          offered pursuant to dividend or interest reinvestment plans,
          please check the following box. [ ]

             If any of the securities being registered on this Form are to
          be offered on a delayed or continuous basis pursuant to Rule 415
          under the Securities Act of 1933, other than securities offered
          only in connection with dividend or interest reinvestment plans,
          check the following box.  [X]

             If this form is filed to register additional securities for an
          offering pursuant to Rule 462(b) under the Securities Act, please
          check the following box and list the Securities Act registration
          statement number of the earlier effective registration statement
          for the same offering. [ ]_______________________

             If this form is a post-effective amendment filed pursuant to
          Rule 462(c) under the Securities Act, check the following box and
          list the Securities Act registration statement number of the
          earlier effective registration statement for the same offering. 
          [ ]_______________________

             If delivery of the prospectus is expected to be made pursuant
          to Rule 434, please check the following box. [ ]
                                  ________________

         
         

               The registrant hereby amends this registration statement on
          such date or dates as may be necessary to delay its effective
          date until the registrant shall file a further amendment which
          specifically states that this registration statement shall
          thereafter become effective in accordance with Section 8(a) of
          the Securities Act of 1933, as amended, or until the registration
          statement shall become effective on such date as the Commission,
          acting pursuant to said Section 8(a), may determine.
          =================================================================
             Pursuant to Rule 429, the combined Prospectus filed herewith
          also relates to Registration No. 33-64014.

          <PAGE>

        
                     Subject to Completion, Dated April 22, 1997
         

          PROSPECTUS
          ----------
                                     $165,000,000
                            NORTHWEST NATURAL GAS COMPANY
                         SECURED MEDIUM-TERM NOTES, SERIES B
                           (SERIES OF FIRST MORTGAGE BONDS)
                                         AND
                        UNSECURED MEDIUM-TERM NOTES, SERIES B
                 Due from Nine Months to 30 Years from Date of Issue

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

             Northwest Natural Gas Company ("Company") may offer from time
          to time up to $165,000,000 aggregate principal amount of its debt
          securities ("Medium-Term Notes"), consisting of its First
          Mortgage Bonds, designated Secured Medium-Term Notes, Series B
          ("Secured Notes"), and its Unsecured Medium-Term Notes, Series B
          ("Unsecured Notes").  The principal amounts, interest rates,
          issue prices and agents' commissions, original issue and maturity
          dates, redemption provisions, if any, and other material terms of
          the Medium-Term Notes will be established by the Company from
          time to time and will be set forth in supplements hereto
          ("Pricing Supplements").  The Medium-Term Notes will have
          maturities from nine months to 30 years from their respective
          dates of issue.   Interest on each Medium-Term Note will accrue
          from its date of issue and will be payable semi-annually in
          arrears on each June 1 and December 1, and at maturity.  The
          Medium-Term Notes will not be subject to redemption prior to
          their stated maturity unless otherwise specified in the
          applicable Pricing Supplement.
             The Medium-Term Notes will be initially registered in the name
          of CEDE & Co. as registered owner and nominee for The Depository
          Trust Company, New York, New York ("DTC").  DTC will act as a
          securities depository for the Medium-Term Notes of each issue. 
          Sales of Medium-Term Notes will be made only in book-entry form
          in denominations of $1,000 or any amount in excess thereof that
          is an integral multiple of $1,000 and, except under the limited
          circumstances described herein, beneficial owners of interests in
          the Medium-Term Notes will not receive certificates representing
          their interests in the Medium-Term Notes.  Payments of principal,
          premium, if any, and interest will be made through DTC and its
          Participants and disbursements of such payments to purchasers
          will be the responsibility of such Participants.
             For further information with respect to the Medium-Term Notes,
          see "Book-Entry System", "Description of the Secured Notes", and
          "Description of the Unsecured Notes" herein and the applicable
          Pricing Supplement.

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

       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 OR ADEQUACY OF
                   THIS PROSPECTUS OR ANY SUPPLEMENT HERETO.  ANY 
                          REPRESENTATION TO THE CONTRARY IS 
                                 A CRIMINAL OFFENSE.

     =========================================================================
                      PRICE TO           AGENTS'           PROCEEDS TO
                      PUBLIC(1)     COMMISSIONS(2)(3)     COMPANY(2)(4)
     -------------------------------------------------------------------------
      Per Note. .      100%           .125%-.750%       99.875%-99.250%
     -------------------------------------------------------------------------
      Total . . .   $165,000,000        $206,250-         $164,793,750-
                                       $1,237,500         $163,762,500
     =========================================================================
          (1)   Unless otherwise specified in the applicable Pricing
                Supplement, Medium-Term Notes will be issued at 100% of
                their principal amount.
          (2)   The Company will pay commissions to any agents engaged by
                the Company ("Agents"), including Merrill Lynch & Co.,
                Merrill Lynch, Pierce, Fenner & Smith Incorporated and
                PaineWebber Incorporated, in the form of discounts, ranging
                from .125% to .750% of the principal amount of any Medium-
                Term Note, depending upon maturity, and may sell Medium-
                Term Notes to any Agent, as principal.  Unless otherwise
                indicated in the applicable Pricing Supplement, a Medium-
                Term Note sold to an Agent, as principal, will be purchased
                by such Agent at a price equal to 100% of the principal
                amount thereof less a percentage equal to the commission
                applicable to an agency sale of a Medium-Term Note of
                identical maturity, and may be resold by such Agent to
                investors and other purchasers at varying prices related to
                prevailing market prices at the time of resale as
                determined by such Agent, or, if so agreed, at a fixed
                public offering price.  No commission will be payable on
                any sales made directly by the Company.
          (3)   The Company has agreed to indemnify the Agents against
                certain liabilities under the Securities Act of 1933.
          (4)   Assuming Medium-Term Notes are issued at 100% of their
                principal amount and before deducting expenses payable by
                the Company estimated at $252,000, including reimbursement
                of certain expenses of the Agents.

                                  ----------------
             The Medium-Term Notes are being offered on a continuing basis
          by the Company through the Agents, which have agreed to use their
          best efforts to solicit purchases of the Medium-Term Notes. 
          Medium-Term Notes may also be sold to any Agent, as principal,
          for resale to investors and other purchasers at varying prices
          related to prevailing market prices at the time of resale, as
          determined by such Agent, or, if so agreed, at a fixed public
          offering price.  The Company reserves the right to sell Medium-
          Term Notes directly to investors on its own behalf.  The Medium-
          Term Notes will not be listed on any securities exchange, and
          there can be no assurance that the Medium-Term Notes offered by
          this Prospectus will be sold or that there will be a secondary
          market for the Medium-Term Notes.  The Company reserves the right
          to withdraw, cancel or modify the offer made hereby without
          notice.  The Company or any Agent may reject, in whole or in
          part, any offer to purchase Medium-Term Notes.  See "Plan of
          Distribution".

                                  ----------------
          MERRILL LYNCH & CO.                        PAINEWEBBER INCORPORATED
                                  ----------------
         
                    The date of this Prospectus is April __, 1997
         

          Information contained herein is subject to completion or
          amendment.  A registration statement relating to these securities
          has been filed with the Securities and Exchange Commission. 
          These securities may not be sold nor may offers to buy be
          accepted prior to the time the registration statement becomes
          effective.  This prospectus shall not constitute an offer to sell
          or the solicitation of an offer to buy nor shall there be any
          sale of these securities in any State in which such offer,
          solicitation or sale would be unlawful prior to registration or
          qualification under the securities laws of any such State.

          <PAGE>

        
             IN CONNECTION WITH CERTAIN TYPES OF OFFERS AND SALES OF
          MEDIUM-TERM NOTES, CERTAIN PERSONS PARTICIPATING IN THE OFFERING
          OF SUCH MEDIUM-TERM NOTES MAY ENGAGE IN TRANSACTIONS THAT
          STABILIZE OR MAINTAIN OR OTHERWISE AFFECT THE PRICE OF SUCH
          MEDIUM-TERM NOTES.  SUCH TRANSACTIONS MAY INCLUDE BIDS OR
          PURCHASES FOR THE PURPOSE OF PEGGING, FIXING OR MAINTAINING THE
          PRICE OF THE MEDIUM-TERM NOTES, THE PURCHASE OF MEDIUM-TERM NOTES
          TO COVER SYNDICATE SHORT POSITIONS AND THE IMPOSITION OF PENALTY
          BIDS.  FOR A DESCRIPTION OF THESE ACTIVITIES, SEE "PLAN OF
          DISTRIBUTION". 
         

                                AVAILABLE INFORMATION

             The Company is subject to the informational requirements of
          the Securities Exchange Act of 1934, as amended ("Exchange Act"),
          and, in accordance therewith, files reports and other information
          with the Securities and Exchange Commission ("Commission"). 
          Reports, proxy statements and other information filed by the
          Company can be inspected and copied at the public reference
          facilities of the Commission, Room 1024, Judiciary Plaza, 450
          Fifth Street, N.W., Washington, D.C. 20549, as well as at the
          following regional offices: Seven World Trade Center, Suite 1300,
          New York, New York 10048, and 500 West Madison Street, Suite
          1400, Chicago, Illinois 60661.  Copies of such material can be
          obtained from the Public Reference Section of the Commission at
          450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed
          rates.  The Commission maintains a Web site (http://www.sec.gov)
          that contains reports, proxy statements and other information
          filed electronically by the Company.


                   INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

        
             There is hereby incorporated by reference in this Prospectus
          the following document heretofore filed with the Securities and
          Exchange Commission:
         

        
             The Company's Annual Report on Form 10-K, as amended by its
          Form 10-K/A, for the year ended December 31, 1996.
         

        
         

               All documents filed by the Company pursuant to Section
          13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of
          this Prospectus and prior to the termination of this offering
          shall be deemed to be incorporated by reference into this
          Prospectus.  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 modifies or supersedes such
          statement.  Any statement so modified or superseded shall not be
          deemed, except as so modified or superseded, to constitute a part
          of this Prospectus.

               The Company hereby undertakes to provide, without charge, to
          each person to whom a copy of this Prospectus shall have been
          delivered, upon written or oral request of such person, a copy of
          any or all of the documents which have been incorporated in this
          Prospectus by reference, other than exhibits to such documents,
          unless such exhibits shall have been specifically incorporated by
          reference into such documents.  Requests for such copies should
          be directed to C.J. Rue, Secretary, Northwest Natural Gas
          Company, One Pacific Square, 220 N.W. Second Avenue, Portland,
          Oregon 97209, telephone 503-226-4211.


                                     THE COMPANY

               The Company's executive offices are located at One Pacific
          Square, 220 N.W. Second Avenue, Portland, Oregon 97209.  Its
          telephone number is 503-226-4211.  The Company and its
          predecessors have supplied gas service to the public since 1859. 
          The Company is principally engaged in the distribution of natural
          gas to customers in western Oregon and southwestern Washington,
          including the Portland metropolitan area.


                        USE OF PROCEEDS AND FINANCING PROGRAM

               The net proceeds to be received by the Company from the sale
          of the Medium-Term Notes will be added to the general funds of
          the Company and used for corporate purposes, primarily to fund,
          in part, the Company's ongoing utility construction program.

        
               The Company expects its utility construction expenditures in
          1997 to aggregate $110 million, and in the five-year period,
          1997-2001, to aggregate between $500 million and $550 million.
         

        
               It is estimated that 50% of the funds required for utility
          purposes during the 1997-2001 period will be internally generated
          and that the balance, as well as substantially all of the funds
          required for the refunding of maturing and higher-cost debt, will
          be raised through the sale of equity and debt securities,
          including the Medium-Term Notes, in such amounts and at such
          times as the Company's cash requirements and market conditions
          shall determine.  Approximately $25 million, $15 million and $10
          million of debt securities will mature in 1997, 1998 and 1999,
          respectively.
         

                                       2
          <PAGE>

                          RATIO OF EARNINGS TO FIXED CHARGES

               The ratios of earnings to fixed charges, calculated
          according to the rules set forth under the Securities Act of
          1933, as amended, for the following twelve-month periods were:

        
                                 TWELVE MONTHS ENDED
          -----------------------------------------------------------------
                                     DECEMBER 31,
          -----------------------------------------------------------------
               1996        1995         1994         1993         1992
          -----------------------------------------------------------------
               3.53        3.15         3.08         3.22         1.81
         

               Earnings consist of net income to which has been added taxes
          on income and fixed charges.  Fixed charges consist of interest
          on all indebtedness, amortization of debt expense and discount or
          premium, and the estimated interest portion of rentals charged to
          income.


                                  BOOK-ENTRY SYSTEM

               DTC will act as securities depository for the Medium-Term
          Notes of each issue. Except under the circumstances described
          below, the Medium-Term Notes will be issued in the form of one or
          more fully registered notes that will be deposited with, or on
          behalf of, DTC or such other depository as may be subsequently
          designated ("Depository"), and registered in the name of CEDE &
          Co. (DTC's partnership nominee), or such other Depository or its
          nominee as may be subsequently designated. 

               So long as the Depository, or its nominee, is the registered
          owner of the Medium-Term Notes, such Depository or such nominee,
          as the case may be, will be considered the owner of such
          Medium-Term Notes for all purposes under the Mortgage or the
          Indenture (each as defined below), as the case may be, including
          notices and voting.  Payments of principal of, and premium, if
          any, and interest on, the Medium-Term Notes will be made to the
          Depository or its nominee, as the case may be, as the registered
          owner of such Medium-Term Notes.  Except as set forth below,
          owners of beneficial interests in Medium-Term Notes will not be
          entitled to have any individual Medium-Term Notes registered in
          their names, will not receive or be entitled to receive physical
          delivery of any such Medium-Term Notes and will not be considered
          the owners of Medium-Term Notes under the Mortgage or the
          Indenture.  Accordingly, each person holding a beneficial
          interest in a Medium-Term Note must rely on the procedures of the
          Depository and, if such person is not a Direct Participant (as
          hereinafter defined), on procedures of the Direct Participant
          through which such person holds its interest, to exercise any of
          the rights of the registered owner of such Medium-Term Note.

               If the Depository is at any time unwilling or unable to
          continue as depository and a successor depository is not
          appointed by the Company, individual registered Medium-Term Notes
          will be issued in exchange for the Medium-Term Notes held by the
          Depository. In addition, the Company, at any time and in its sole
          discretion, may determine not to have the Medium-Term Notes held
          by the Depository and, in such event, individual registered
          Medium-Term Notes will be issued in exchange for the Medium-Term
          Notes held by the Depository.  In any such instance, an owner of
          a beneficial interest in the Medium-Term Notes will be entitled
          to physical delivery of individual Medium-Term Notes equal in
          principal amount to such beneficial interest and to have such
          Medium-Term Notes registered in its name. Individual Medium-Term
          Notes so issued will be issued as registered Medium-Term Notes in
          denominations of $1,000 or any amount in excess thereof that is
          an integral multiple of $1,000.

               The following is based solely on information furnished by
          DTC: 

               DTC is a limited-purpose trust company organized under the
          New York Banking Law, a "banking organization" within the meaning
          of the New York Banking Law, a member of the Federal Reserve
          System, a "clearing corporation" within the meaning of the New
          York Uniform Commercial Code, and  a "clearing agency" registered
          pursuant to the provisions of Section 17A of the Exchange Act. 
          DTC holds securities that its participants ("Participants")
          deposit with DTC.  DTC also facilitates the settlement among
          Participants of securities transactions, such as transfers and
          pledges, in deposited securities through electronic computerized
          book-entry changes in Participants' accounts, thereby eliminating
          the need for physical movement of securities certificates.  

                                       3
          <PAGE>

               Direct Participants include securities brokers and dealers,
          banks, trust companies, clearing corporations, and certain other
          organizations ("Direct Participants").  DTC is owned by a number
          of its Direct Participants and by The New York Stock Exchange,
          Inc., the American Stock Exchange, Inc., and the National
          Association of Securities Dealers, Inc.  Access to the DTC system
          is also available to others such as securities brokers and
          dealers, banks, and trust companies that clear through or
          maintain a custodial relationship with a Direct Participant,
          either directly or indirectly ("Indirect Participants").  The
          rules applicable to DTC and its Participants are on file with the
          Commission.

               Purchases of the Medium-Term Notes under the DTC system must
          be made by or through Direct Participants, which will receive a
          credit for the Medium-Term Notes on DTC's records.  The ownership
          interest of each actual purchaser of each Medium-Term Note
          ("Beneficial Owner") is in turn to be recorded on the Direct and
          Indirect Participants' records.  Beneficial Owners will not
          receive written confirmation from DTC of their purchase, but
          Beneficial Owners are expected to receive written confirmation
          providing details of the transaction, as well as periodic
          statements of their holdings, from the Direct or Indirect
          Participant through which the Beneficial Owner entered into the
          transaction.  Transfers of ownership interests in the Medium-Term
          Notes are to be accomplished by entries made on the books of
          Participants acting on behalf of Beneficial Owners.  Beneficial
          Owners will not receive certificates representing their ownership
          interests in the Medium-Term Notes, except in the event that use
          of the book-entry system for the Medium-Term Notes is
          discontinued.

               To facilitate subsequent transfers, all Medium-Term Notes
          deposited by Participants with DTC are registered in the name of
          CEDE & Co.  The deposit of Medium-Term Notes with DTC and their
          registration in the name of CEDE & Co. effect no change in
          beneficial ownership.  DTC has no knowledge of the actual
          Beneficial Owners of the Medium-Term Notes; DTC's records reflect
          only the identity of the Direct Participants to whose accounts
          such Medium-Term Notes are credited, which may or may not be the
          Beneficial Owners.  The Participants will remain responsible for
          keeping account of their holdings on behalf of their customers.

               Conveyance of notices and other communications by DTC to
          Direct Participants, by Direct Participants to Indirect
          Participants, and by Direct Participants and Indirect
          Participants to Beneficial Owners will be governed by
          arrangements among them, subject to any statutory or regulatory
          requirements as may be in effect from time to time. 

               If the Medium-Term Notes of any issue are redeemable prior
          to the maturity date, redemption notices shall be sent to CEDE &
          Co.  If less than all of the Medium-Term Notes of any issue are
          being redeemed, DTC's practice is to determine by lot the amount
          of the interest of each Direct Participant in such issue to be
          redeemed. 

               Neither DTC nor CEDE & Co. will consent or vote with respect
          to the Medium-Term Notes.  Under its usual procedures, DTC mails
          an Omnibus Proxy to the Company as soon as possible after the
          record date. The Omnibus Proxy assigns CEDE & Co.'s consenting or
          voting rights to those Direct Participants to whose accounts the
          Medium-Term Notes are credited on the record date (identified in
          a listing attached to the Omnibus Proxy). 

               Principal and interest payments on the Medium-Term Notes
          will be made to DTC. DTC's practice is to credit Direct
          Participants' accounts on the date on which interest is payable
          in accordance with their respective holdings shown on DTC's
          records, unless DTC has reason to believe that it will not
          receive payment on such payment date. Payments by Participants to
          Beneficial Owners will be governed by standing instructions and
          customary practices, as is the case with securities held for the
          accounts of customers in bearer form or registered in "street
          name", and will be the responsibility of such Participant and not
          of DTC, the Mortgage Trustees (as defined below), the Indenture
          Trustee (as defined below) or the Company, subject to any
          statutory or regulatory requirements as may be in effect from
          time to time.  Payment of principal and interest to DTC is the
          responsibility of the Company and the Corporate Trustee (as
          defined below) or the Indenture Trustee, as the case may be. 
          Disbursement of such payments to Direct Participants shall be the
          responsibility of DTC, and disbursement of such payments to the
          Beneficial Owners shall be the responsibility of Direct and
          Indirect Participants.

               DTC may discontinue providing services as securities
          depository with respect to the Medium-Term Notes at any time by
          giving reasonable notice to the Company, the Mortgage Trustees
          and the Indenture Trustee.

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

               None of the Company or the Mortgage Trustees or the
          Indenture Trustee will have any responsibility or liability for
          any aspect of the records relating to or payments made on account
          of beneficial interests in the Medium-Term Notes or for
          maintaining, supervising or reviewing any records relating to
          such beneficial interests.

                                       4
          <PAGE>


                           DESCRIPTION OF THE SECURED NOTES

          GENERAL

               The Secured Notes, which comprise a series of the Company's
          First Mortgage Bonds ("Bonds"), are to be issued under the
          Company's Mortgage and Deed of Trust, dated as of July 1, 1946,
          to Bankers Trust Company ("Corporate Trustee") and R.G. Page
          (Stanley Burg, successor), as trustees ("Mortgage Trustees"), as
          supplemented by twenty supplemental indentures, all of which are
          collectively referred to as the "Mortgage". 

               The statements herein concerning the Secured Notes and the
          Mortgage are merely an outline and do not purport to be complete.
          They make use of terms defined in the Mortgage and are qualified
          in their entirety by express reference to the cited Sections and
          Articles. They may be changed with respect to any Secured Note by
          the applicable Pricing Supplement, which should be read in
          conjunction with this description.

               The Secured Notes will be offered on a continuing basis and
          each Secured Note will mature on such date, not less than nine
          months or more than 30 years from its date of issue, as selected
          by the purchaser and agreed to by the Company. 

               The Pricing Supplement relating to each Secured Note will
          set forth the principal amount, interest rate, issue price and
          Agent's commission, original issue and maturity dates, redemption
          provisions, if any, and other material terms of such Secured
          Note. 

          INTEREST

               Interest on each Secured Note will be payable semi-annually
          in arrears on June 1 and December 1 of each year and at maturity.

               Interest payable on any interest payment date for any
          Secured Note will be payable to the person in whose name such
          Secured Note is registered on the record date with respect to
          such interest payment date, which shall be the May 15 or November
          15 (whether or not a business day), as the case may be, next
          preceding such interest payment date; provided that, (i) if the
          original issue date of any Secured Note is after a record date
          and before the corresponding interest payment date, such Secured
          Note shall bear interest from the original issue date, but
          payment of interest shall commence on the second interest payment
          date succeeding the original issue date, and (ii) interest
          payable on the maturity date will be payable to the person to
          whom the principal thereof shall be payable. 

               Unless otherwise indicated in the applicable Pricing
          Supplement, interest on the Secured Notes will be computed on the
          basis of a 360-day year consisting of twelve 30-day months. 

          FORM, EXCHANGE AND PAYMENT

                   The Secured Notes will be issued in fully registered
          form in denominations of $1,000 or any amount in excess thereof
          that is an integral multiple of $1,000. The Secured Notes will be
          exchangeable at the office of Bankers Trust Company in New York
          City, without charge other than taxes or other governmental
          charges incident thereto. Principal, premium, if any, and
          interest will be payable at such office. (See Twentieth
          Supplemental, Sec. 1.01.)  Notwithstanding the foregoing, for so
          long as the Secured Notes shall be held by the Depository or its
          nominee, owners of beneficial interests in the Secured Notes will
          not be entitled to have any individual Secured Notes registered
          in their names, and transfers of beneficial interests and
          payments of principal, premium, if any, and interest will be made
          as described herein under "Book-Entry System". 

          REDEMPTION

               To the extent, if any, provided in the Pricing Supplement
          relating to any Secured Note, such Secured Note will be
          redeemable, on 30 days' notice, in whole or in part, at any time
          on or after the initial redemption date, if any, fixed at the
          time of sale and set forth in the applicable Pricing Supplement. 
          On or after the initial redemption date, such Secured Note will
          be redeemable in whole or in part, at the option of the Company
          at a redemption price determined in accordance with the following
          paragraph, plus accrued interest to the date fixed for
          redemption. 

               The redemption price for each Secured Note subject to
          redemption shall, for the twelve-month period commencing on the
          initial redemption date, be equal to a certain percentage of the
          principal amount of such Secured Note and thereafter, shall
          decline for the twelve-month period commencing on each
          anniversary of the initial redemption date by a percentage of

                                       5
          <PAGE>

          principal amount ("Reduction Percentage") until the redemption
          price shall be 100% of the principal amount. The initial
          redemption date and price and any Reduction Percentage with
          respect to each Secured Note subject to redemption will be fixed
          at the time of sale and set forth in the applicable Pricing
          Supplement.

               If so specified in the Pricing Supplement relating to any
          Secured Note, the Company may not, prior to the redemption
          limitation date, if any, set forth in such Pricing Supplement,
          redeem such Secured Note as contemplated above as a part of, or
          in anticipation of, any refunding operation by the application,
          directly or indirectly, of moneys borrowed having an effective
          interest cost to the Company (calculated in accordance with
          generally accepted financial practice) of less than the effective
          interest cost to the Company (similarly calculated) of such
          Secured Note. 

               If, at the time the notice of redemption shall be given, the
          redemption money shall not be on deposit with the Corporate
          Trustee, the redemption may be made subject to the receipt of
          such money before the date fixed for redemption, and such notice
          shall be of no effect unless such money shall be so received. 

               Unless otherwise indicated in the applicable Pricing
          Supplement, the Secured Notes will not be subject to any sinking
          fund. 

          PROVISIONS FOR MAINTENANCE OF PROPERTY

               While the Mortgage contains provisions for the maintenance
          of the Mortgaged and Pledged Property, the Mortgage does not
          permit redemption of Bonds pursuant to these provisions.

          SECURITY

               The Secured Notes together with all other Bonds now or
          hereafter issued under the Mortgage will be secured by the
          Mortgage, which constitutes, in the opinion of Bruce B. Samson,
          Esq., General Counsel of the Company, a first mortgage lien on
          all of the gas plants, distribution systems and other materially
          important physical properties of the Company (except as stated
          below), subject to (a) leases of minor portions of the Company's
          property to others for uses which, in the opinion of such
          Counsel, do not interfere with the Company's business, (b) leases
          of certain property of the Company not used in its gas utility
          business or the gas by-product business, (c) excepted
          encumbrances, and (d) minor defects and encumbrances customarily
          found in properties of like size and character which, in the
          opinion of such Counsel, do not impair the use of such properties
          by the Company. There are excepted from the lien all cash and
          securities; certain equipment, apparatus, materials or supplies;
          aircraft, automobiles and other vehicles; receivables, contracts,
          leases and operating agreements; timber, minerals, mineral rights
          and royalties; and all natural gas and oil production property.

               The Mortgage contains provisions subjecting after-acquired
          property (subject to pre-existing liens) to the lien thereof,
          subject to limitations in the case of consolidation, merger or
          sale of substantially all of the Company's assets.  (See
          Mortgage, Art. XVI.)

               The Mortgage provides that the Mortgage Trustees shall have
          a lien upon the mortgaged property, prior to that of the Bonds,
          for the payment of their reasonable compensation and expenses and
          for indemnity against certain liabilities.  (See Mortgage, Sec.
          96).

          ISSUANCE OF ADDITIONAL BONDS

               Bonds may be issued from time to time on the basis of (1)
          60% of property additions, after adjustments to offset
          retirements (see "Modification of the Mortgage -- Issuance of
          Additional Bonds" below); (2) retirement of Bonds or qualified
          lien bonds; or (3) deposit of cash. With certain exceptions in
          the case of (2) above, the issuance of Bonds is subject to
          adjusted net earnings before income taxes for 12 consecutive
          months out of the preceding 15 months being at least twice the
          annual interest requirements on all Bonds at the time
          outstanding, including the additional issue, and all indebtedness
          of prior rank.

        
               Property additions generally include gas, electric, steam or
          hot water property or gas by-product property acquired after
          March 31, 1946, but may not include securities, airplanes,
          automobiles or other vehicles, or natural gas transmission lines
          or natural gas and oil production property.  As of December 31,
          1996, approximately $373 million of property additions and $93
          million of retired Bonds were available for use as the basis for
          the issuance of Bonds.
         

                                       6
          <PAGE>

               The Mortgage contains certain restrictions upon the issuance
          of Bonds against property subject to liens.  

               The Secured Notes will be issued against property additions
          and retired Bonds.

               (See Mortgage, Secs. 4-7, 20-30 and 46, and Third
          Supplemental, Secs. 3 and 4.)

          RELEASE AND SUBSTITUTION OF PROPERTY

               Property may be released against (1) deposit of cash or, to
          a limited extent, purchase money mortgages, (2) property
          additions, or (3) waiver of the right to issue Bonds without
          applying any earnings test. Cash so deposited and cash deposited
          against the issuance of additional bonds may be withdrawn upon
          the bases stated in (2) and (3) above.  When property released is
          not funded property, property additions used to effect the
          release may again, in certain cases, become available as credits
          under the Mortgage, and the waiver of the right to issue Bonds to
          effect the release may, in certain cases, cease to be effective
          as such a waiver. Similar provisions are in effect as to cash
          proceeds of such property. The Mortgage contains special
          provisions with respect to qualified lien bonds pledged and the
          disposition of moneys received on pledged prior lien bonds. (See
          Mortgage, Secs. 5, 31, 32, 37, 46 to 50, 59 to 61, 100 and 118.)

          DEFAULTS AND NOTICE THEREOF

        
               Defaults are:  default in payment of principal, default for
          60 days in payment of interest or of installments of funds for
          retirement of Bonds; certain defaults with respect to qualified
          lien bonds; certain events in bankruptcy, insolvency or
          reorganization; and default for 90 days after notice in the case
          of a breach of any other covenant.  The Mortgage Trustees may
          withhold notice of default (except in payment of principal,
          interest or any fund for the retirement of Bonds) if they think
          it in the interest of the Bondholders.  (See Mortgage, Secs. 65
          and 66.)
         

               Holders of 25% of the Bonds may declare the principal and
          the interest due on default, but a majority may annul such
          declaration if such default has been cured.  No holder of Bonds
          may enforce the lien of the Mortgage without giving the Mortgage
          Trustees written notice of a default and unless holders of 25% of
          the Bonds have requested the Mortgage Trustees to act and offered
          them reasonable opportunity to act and the Mortgage Trustees have
          failed to act.  The Mortgage Trustees are not required to risk
          their funds or incur personal liability if there is reasonable
          ground for believing that the repayment is not reasonably
          assured.  Holders of a majority of the Bonds may direct the time,
          method and place of conducting any proceedings for any remedy
          available to the Mortgage Trustees, or exercising any trust or
          power conferred upon the Mortgage Trustees, but the Mortgage
          Trustees are not required to follow such direction if not
          sufficiently indemnified for expenditures.  (See Mortgage, Secs.
          67, 71, 80 and 94.)

        
          SATISFACTION AND DISCHARGE OF MORTGAGE
         

        
               The lien of the Mortgage may be cancelled and discharged
          whenever all indebtedness secured by the Mortgage has been paid. 
          Bonds, or any portion of the principal amount thereof, will,
          prior to the maturity thereof, be deemed to have been paid for
          purposes of satisfying the lien of the Mortgage and shall not be
          deemed to be outstanding for any other purpose of the Mortgage if
          there shall have been deposited with the Corporate Trustee either
          (i) moneys in the necessary amount or (ii) (a) direct obligations
          of the government of the United States of America or (b)
          obligations guaranteed by the government of the United States of
          America or (c) securities that are backed by obligations of the
          government of the United States of America as collateral under an
          arrangement by which the interest and principal payments on the
          collateral generally flow immediately through to the holder of
          the security, which in any case are not subject to redemption
          prior to maturity by anyone other than the holders, the principal
          of and the interest on which when due, and without any regard to
          reinvestment thereof, shall be sufficient to pay when due the
          principal of, premium, if any, and interest due and to become due
          on said Bonds or portions thereof on the redemption date or
          maturity date thereof, as the case may be.  (See Mortgage, Sec.
          106 and Thirteenth Supplemental, Sec. 3.02.)
         

          EVIDENCE TO BE FURNISHED TO THE MORTGAGE TRUSTEES

               Compliance with Mortgage provisions is evidenced by written
          statements of the Company's officers or persons selected by the
          Company.  In certain major matters the accountant, engineer,
          appraiser or other expert must be independent.  Various
          certificates and other papers, including an annual certificate
          with reference to compliance with the terms of the Mortgage and
          absence of defaults, are required to be filed annually and upon
          the occurrence of certain events.  (See Mortgage, Secs. 38-46.)

                                       7
          <PAGE>

          MODIFICATION OF THE MORTGAGE

               The rights of the Bondholders may be modified with the
          consent of 70% of the Bonds and, if less than all series of Bonds
          are affected, the consent also of 70% of Bonds of each series
          affected.  The Company has the right, without any consent or
          other action by holders of any series of Bonds, to substitute
          66 2/3% for 70%.  In general, no modification of the terms of
          payment of principal and interest, affecting the lien of the
          Mortgage or reducing the percentage required for modification
          (except as provided above) will be effective against any
          Bondholder without his consent.  (See Mortgage, Art. XIX and
          Ninth Supplemental, Sec.6.)

               The Company has reserved the right to amend the Mortgage,
          without any consent or other action by holders of the Bonds of
          the Nineteenth Series or of Bonds of any subsequently created
          series (including the Secured Notes), in the following respects:

               Release and Substitution of Property

               To permit the release of property at the lesser of its cost
          or its fair value at the time that such property became funded
          property, rather than at its fair value at the time of its
          release; and to facilitate the release of unfunded property. 
          (See Mortgage, Secs. 3, 59 and 60 and Eighteenth Supplemental,
          Sec. 2.03.)

               Issuance of Additional Bonds

        
               To clarify that (i) for purposes of determining annual
          interest requirements, interest on Bonds or other indebtedness
          bearing interest at a variable interest rate shall be computed at
          the average of the interest rates borne by such Bonds or other
          indebtedness during the period of calculation or, if such Bonds
          or other indebtedness shall have been issued after such period or
          shall be the subject of pending applications, interest shall be
          computed at the initial rate borne upon issuance, and (ii) no
          extraordinary items shall be included in operating expenses or
          deducted from revenues or other income in calculating adjusted
          net earnings (See Mortgage, Sec. 7.); and to revise the basis for
          the issuance of additional Bonds from 60% of property additions,
          after adjustments to offset retirements, to 70%. (See Mortgage,
          Secs. 25, 26, 59 and 61 and Eighteenth Supplemental, Secs. 2.01
          and 2.02.)
         

          THE CORPORATE TRUSTEE

               Bankers Trust Company also serves as the Indenture Trustee
          under the Indenture under which the Unsecured Notes are issued. 

                          DESCRIPTION OF THE UNSECURED NOTES

              GENERAL

               The Unsecured Notes are to be issued under an Indenture,
          dated as of June 1, 1991 ("Indenture"), between the Company and
          Bankers Trust Company, as trustee ("Indenture Trustee").

               The statements herein concerning the Unsecured Notes and the
          Indenture are merely an outline and do not purport to be
          complete.  They make use of terms defined in the Indenture and
          are qualified in their entirety by express reference to the cited
          Sections and Articles. They may be changed with respect to any
          Unsecured Note by the applicable Pricing Supplement, which should
          be read in conjunction with this description.

               The Indenture provides that debt securities (including the
          Unsecured Notes and including both interest bearing and original
          issue discount securities) may be issued thereunder, without
          limitation as to aggregate principal amount. (See Indenture, Sec.
          301.)  All debt securities heretofore or hereafter issued under
          the Indenture (including the Unsecured Notes) are collectively
          referred to as the "Indenture Securities". The Indenture does not
          limit the amount of other debt, secured or unsecured, which may
          be issued by the Company. The Unsecured Notes will rank pari
          passu with all other unsecured and unsubordinated indebtedness of
          the Company. Substantially all of the gas plants, distribution
          systems and other materially important physical properties of the
          Company are subject to the lien of the Mortgage securing the
          Company's Bonds. (See "Description of the Secured Notes--Security
          and--Issuance of Additional Bonds", above.) 

               The Unsecured Notes will be offered on a continuing basis,
          and each Unsecured Note will mature on such date, not less than
          nine months nor more than 30 years from its date of issue, as
          selected by the purchaser and agreed to by the Company.

                                       8
          <PAGE>

               The Pricing Supplement relating to any Unsecured Note will
          set forth the principal amount, interest rate, issue price and
          Agent's commission, original issue and maturity dates, redemption
          provisions, if any, and other material terms of such Unsecured
          Note. 

          INTEREST

               Interest on each Unsecured Note will be payable
          semi-annually in arrears on June 1 and December 1 of each year
          and at maturity. 

               Interest payable on any interest payment date for any
          Unsecured Note will be payable to the person in whose name such
          Unsecured Note is registered on the record date with respect to
          such interest payment date, which shall be the May 15 or November
          15 (whether or not a business day), as the case may be, next
          preceding such interest payment date; provided that, (i) if the
          original issue date of any Unsecured Note is after a record date
          and before the corresponding interest payment date, such
          Unsecured Note will bear interest from the original issue date
          but payment of interest shall commence on the second interest
          payment date succeeding the original issue date, and (ii)
          interest payable on the maturity date will be payable to the
          person to whom the principal thereof shall be payable.

               Unless otherwise indicated in the applicable Pricing
          Supplement, interest on the Unsecured Notes will be computed on
          the basis of a 360-day year consisting of twelve 30-day months. 

          FORM, EXCHANGE AND PAYMENT

               The Unsecured Notes will be issued in fully registered form
          in denominations of $1,000 or any amount in excess thereof that
          is an integral multiple of $1,000. The Unsecured Notes will be
          exchangeable at the office of Bankers Trust Company in New York
          City, without charge other than taxes or other governmental
          charges incident thereto. Principal, premium, if any, and
          interest will be payable at such office. Notwithstanding the
          foregoing, for so long as the Unsecured Notes shall be held by
          the Depository or its nominee, owners of beneficial interests in
          the Unsecured Notes will not be entitled to have any individual
          Unsecured Notes registered in their names, and transfers of
          beneficial interests and payments of principal, premium, if any,
          and interest will be made as described herein under "Book-Entry
          System". 

          REDEMPTION

               To the extent, if any, provided in the Pricing Supplement
          relating to any Unsecured Note, such Unsecured Note will be
          redeemable, on not less than 30 days' notice, in whole or in
          part, at any time on or after the initial redemption     date, if
          any, fixed at the time of sale and set forth in the applicable
          Pricing Supplement.  On or after the initial redemption date,
          such Unsecured Note will be redeemable in whole or in part, at
          the option of the Company, at a redemption price determined in
          accordance with the following paragraph, plus accrued interest to
          the date fixed for redemption.

               The redemption price for each Unsecured Note subject to
          redemption shall, for the twelve-month period commencing on the
          initial redemption date, be equal to a certain percentage of the
          principal amount of such Unsecured Note and, thereafter, shall
          decline for the twelve-month period commencing on each
          anniversary of the initial redemption date by a percentage of
          principal amount ("Reduction Percentage") until the redemption
          price shall be 100% of the principal amount. The initial
          redemption price and date and any Reduction Percentage with
          respect to each Unsecured Note subject to redemption will be
          fixed at the time of sale and set forth in the applicable Pricing
          Supplement.

               If so specified in the Pricing Supplement relating to any
          Unsecured Note, the Company may not, prior to the redemption
          limitation date, if any, set forth in such Pricing Supplement,
          redeem such Unsecured Note as contemplated above as a part of, or
          in anticipation of, any refunding operation by the application,
          directly or indirectly, of moneys borrowed having an effective
          interest cost to the Company (calculated in accordance with
          generally accepted financial practice) of less than the effective
          interest cost to the Company (similarly calculated) of such
          Unsecured Note. 

               If, at the time the notice of redemption shall be given, the
          redemption money shall not be on deposit with the Indenture
          Trustee, the redemption shall be made subject to the receipt of
          such money on or before the date fixed for redemption, and such
          notice shall be of no effect unless such money shall be so
          received. (See Indenture, Art. Four.)

               Unless otherwise indicated in the applicable Pricing
          Supplement, the Unsecured Notes will not be subject to any
          sinking fund.

                                       9
          <PAGE>

        
          DEFEASANCE
         

        
               The principal amount of any Unsecured Notes issued under the
          Indenture will be deemed to have been paid for purposes of the
          Indenture and the entire indebtedness of the Company in respect
          thereof will be deemed to have been satisfied and discharged, if
          there shall have been irrevocably deposited with the Indenture
          Trustee, in trust: (a) money in an amount which will be
          sufficient, or (b) in the case of a deposit made prior to the
          maturity of the Unsecured Notes, Government Obligations (as
          defined herein), 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
          moneys which, together with the money, if any, deposited with or
          held by the Indenture Trustee, 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 the Unsecured Notes that are
          outstanding.  For this purpose, Government 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.  (See Indenture, Secs.
          101, 701.)
         

        
               If the Company shall make any deposit of money and/or
          Government Obligations with respect to the Unsecured Notes, or
          any portion of the principal amount thereof, prior to the
          Maturity or redemption of such Unsecured Notes or such portion of
          the principal amount thereof, for the satisfaction or discharge
          of the indebtedness of the Company in respect to such Unsecured
          Notes or such portion thereof as contemplated by Section 701 of
          the Indenture, the Company shall deliver to the Indenture Trustee
          either (a) an instrument wherein the Company, notwithstanding
          such satisfaction and discharge, shall assume the obligation
          (which shall be absolute and unconditional) to irrevocably
          deposit with the Indenture Trustee such additional sums of money,
          if any, or additional Government Obligations, if any, or any
          combination thereof, at such time or times, as shall be
          necessary, together with the money and/or Government Obligations
          theretofore so deposited, to pay when due the principal of and
          premium, if any, and interest due and to become due on such
          Unsecured Notes or such portions thereof, all in accordance with
          and subject to the provisions of said Section 701; provided,
          however, that such instrument may state that the obligation of
          the Company to make additional deposits as aforesaid shall be
          subject to the delivery to the Company by the Indenture Trustee
          of a notice asserting the amount of such deficiency accompanied
          by an opinion of an independent public accountant of nationally
          recognized standing, selected by the Indenture Trustee, showing
          the calculation thereof, or (b) an opinion of Counsel to the
          effect that the Holders of such Unsecured Notes, or such portions
          of the principal amount thereof, will not recognize income, gain
          or loss for United States federal income tax purposes as a result
          of such satisfaction and discharge and will be subject to United
          States federal income tax on the same amounts, at the same times
          and in the same manner as if such satisfaction and discharge had
          not been effected.
         

        
               In the event that the Company shall elect to deliver to the
          Indenture Trustee an instrument as described in clause (a) of the
          preceding paragraph in connection with any such deposit of money
          and/or Government Obligations with the Indenture Trustee, under
          current applicable United States federal income tax regulations,
          the Holders of such Unsecured Notes, or such portions thereof,
          will not recognize income, gain or loss for United States federal
          income tax purposes as a result of such satisfaction and
          discharge and will be subject to United States federal income tax
          on the same amounts, at the same times and in the same manner as
          if such deposit had not been effected.  There can be no assurance
          that such United States federal income tax regulations will not
          change such that, as a result of such deposit and delivery by the
          Company of such instrument, Holders may recognize income, gain or
          loss for United States federal income tax purposes and may not be
          subject to United States federal income tax on the same amounts,
          at the same times and in the same manner as if such deposit had
          not been effected.
         

          EVENTS OF DEFAULT AND NOTICE THEREOF

               Events of Default are: default for three Business Days in
          payment of principal; default for 60 days in payment of interest;
          certain events in bankruptcy, insolvency or reorganization;
          default for 90 days after notice in the case of a breach of any
          other covenant; and any other Event of Default specified with
          respect to the Indenture Securities of a particular series. No
          Event of Default with respect to a series of Indenture Securities
          necessarily constitutes an Event of Default with respect to the
          Indenture Securities of any other series. The Indenture Trustee
          may withhold notice of default (except in payment of principal,
          interest or any funds for the retirement of Indenture Securities)
          if it, in good faith, determines that withholding of such notice
          is in the interest of the Holders of the Indenture Securities.
          (See Indenture, Secs. 801 and 903.) 

               Either the Indenture Trustee or the Holders of not less than
          33% in principal amount (or such lesser amount as may be provided
          in the case of discount Indenture Securities) of the outstanding
          Indenture Securities of all defaulted series, considered as one
          class, may declare the principal and interest on such series due
          on default, but the Company may annul such default by effecting
          its cure and paying overdue interest and principal.  No Holder of

                                       10
          <PAGE> 
          
          Indenture Securities may enforce the Indenture without having
          given the Indenture Trustee written notice of default, and unless
          the Holders of a majority of the Indenture Securities of all
          defaulted series, considered as one class, shall have requested
          the Indenture Trustee to act and offered reasonable indemnity,
          and for 60 days the Indenture Trustee shall have failed to act. 
          But, each Holder has an absolute right to receive payment of
          principal and interest when due and to institute suit for the
          enforcement of such payment. The Indenture Trustee is not
          required to risk its funds or incur any financial liability if it
          shall have reasonable grounds for believing that repayment is not
          reasonably assured. The Holders of a majority of the Indenture
          Securities of all defaulted series, considered as one class, may
          direct the time, method and place of conducting any proceedings
          for any remedy available to the Indenture Trustee, or exercising
          any trust or power conferred on the Indenture Trustee, with
          respect to the Indenture Securities of such series, but the
          Indenture Trustee is not required to follow such direction if not
          sufficiently indemnified and the Indenture Trustee may take any
          other action it deems proper which is not inconsistent with such
          direction. (See Indenture, Secs. 802, 807, 808, 812 and 902.) 

          EVIDENCE TO BE FURNISHED TO THE INDENTURE TRUSTEE

               Compliance with Indenture provisions will be evidenced by
          written statements of the Company's officers. An annual
          certificate with reference to compliance with the covenants and
          conditions of the Indenture and the absence of defaults is
          required to be filed with the Indenture Trustee. (See Indenture,
          Sec.1004.) 

          MODIFICATION OF THE INDENTURE

               The rights of the Holders of the Indenture Securities may be
          modified with the consent of the Holders of a majority of the
          Indenture Securities of all series or Tranches, as defined below,
          affected, considered as one class. However, certain specified
          rights of the Holders of Indenture Securities may be modified
          without the consent of the Holders if such modification would not
          be deemed adversely to affect their interests in any material
          respect. In general, no modification of the terms of payment of
          principal and interest, no reduction of the percentage in
          principal amount of the Indenture Securities outstanding under
          such series required to consent to any supplemental indenture or
          waiver under the Indenture, no reduction of such percentage
          necessary for quorum and voting, and no modification of certain
          of the provisions in the Indenture relating to supplemental
          indentures, waivers of certain covenants and waivers of past
          defaults is effective against any Holder of Indenture Securities
          without his consent.  "Tranche" means a group of Indenture
          Securities which are of the same series and have identical terms
          except as to principal amount and/or date of issuance.  (See
          Indenture, Art. Twelve.)

          THE INDENTURE TRUSTEE

               Bankers Trust Company also serves as the Corporate Trustee
          under the Mortgage under which the Secured Notes are issued.

                                 PLAN OF DISTRIBUTION

               The Medium-Term Notes are being offered on a continuing
          basis for sale by the Company through the Agents which have
          agreed to use their best efforts to solicit purchases of the
          Medium-Term Notes.  The initial Agents are Merrill Lynch & Co.,
          Merrill Lynch, Pierce, Fenner & Smith Incorporated and
          PaineWebber Incorporated.  Should the Company designate other
          persons to act as Agents, the names of such persons will be
          disclosed in a Pricing Supplement.  The Company will pay each
          Agent a commission which, depending on the maturity of the
          Medium-Term Notes, will range from .125% to .750% of the
          principal amount of any Medium-Term Note sold through such Agent. 
          The Company may also sell Medium-Term Notes to any Agent, as
          principal, at a discount from the principal amount thereof, and
          the Agent may later resell such Medium-Term Notes to investors
          and other purchasers at varying prices related to prevailing
          market prices at the time of resale as determined by such Agent
          or, if so agreed, at a fixed public offering price.  In the case
          of sales to any Agent as principal, such Agent may utilize a
          selling or dealer group in connection with resales.  An Agent may
          sell Medium-Term Notes it has purchased as principal to any
          dealer at a discount and, unless otherwise specified in the
          applicable Pricing Supplement, such discount allowed to any
          dealer will not be in excess of the discount to be received by
          such Agent from the Company.  After the initial public offering
          of Medium-Term Notes to be resold to investors and other
          purchasers, the public offering price (in the case of a fixed
          price public offering), concession and discount may be changed. 
          The Medium-Term Notes also may be sold by the Company directly to
          purchasers.  No commission will be payable to the Agents on
          Medium-Term Notes sold directly by the Company.

               The Company reserves the right to withdraw, cancel or modify
          the offer made hereby without notice and may reject, in whole or
          in part, offers to purchase Medium-Term Notes whether placed
          directly with the Company or through one of the Agents.  Each
          Agent will have the right, in its discretion reasonably
          exercised, to reject any offer to purchase Medium-Term Notes
          received by it, in whole or in part.

                                       11
          <PAGE>

               Payment of the purchase price of the Medium-Term Notes will
          be required to be made in immediately available funds in New York
          City on the date of settlement.

        
               No Medium-Term Note will have an established trading market
          when issued.  The Medium-Term Notes will not be listed on any
          securities exchange.  Each of the Agents may from time to time
          purchase and sell Medium-Term Notes in the secondary market, but
          is not obligated to do so.  There can be no assurance that there
          will be a secondary market for the Medium-Term Notes or liquidity
          in the secondary market if one develops.  From time to time, each
          of the Agents may make a market in the Medium-Term Notes.
         

               The Agents may be deemed to be "underwriters" within the
          meaning of the Securities Act of 1933, as amended.  The Company
          has agreed to indemnify each of the Agents against, or to make
          contributions relating to, certain liabilities, including
          liabilities under such Act.  The Company has agreed to reimburse
          each of the Agents for certain expenses.  Each of the Agents may
          engage in transactions with, or perform services for, the Company
          in the ordinary course of business.

        
               In connection with certain types of offers and sales of
          Medium-Term Notes, rules of the Securities and Exchange
          Commission permit the Agents to engage in certain transactions
          that stabilize the price of such Medium-Term Notes.  Such
          transactions consist of bids or purchases for the purpose of
          pegging, fixing or maintaining the price of the Medium-Term
          Notes.
         

        
               If the Agents create a short position in any Medium-Term
          Notes in connection with certain types of offers and sales, i.e.,
          if they sell more Medium-Term Notes than are set forth in the
          applicable Pricing Supplement, the Agents may reduce that short
          position by purchasing Medium-Term Notes in the open market.
         

        
               In connection with certain types of offers and sales, the
          Agents may also impose a penalty bid on certain Agents and
          selling group members.  This means that if the Agents purchase
          Medium-Term Notes in the open market to reduce the Agents' short
          position or to stabilize the price of the Medium-Term Notes, they
          may reclaim the amount of selling concession from the Agents and
          selling group members who sold these Medium-Term Notes as part of
          the offering.
         

        
               In general, purchases of a security for the purpose of
          stabilization or to reduce a short position could cause the price
          of the security to be higher than it might be in the absence of
          such purchases.  The imposition of a penalty bid might also have
          an effect on the price of a security to the extent that it were
          to discourage resales of the security.
         

        
               Neither the Company nor any Agent makes any representation
          or prediction as to the direction or magnitude of any effect that
          the transactions described above may have on the price of the
          Medium-Term Notes.  In addition, neither the Company nor any
          Agent makes any representation that the Agents will engage in
          such transactions or that such transactions, once commenced, will
          not be discontinued without notice.
         

                                       EXPERTS

        
               The financial statements incorporated in this Prospectus by
          reference from the Company's Annual Report on Form 10-K for the
          year ended December 31, 1996 have been audited by Deloitte &
          Touche LLP, independent auditors, as stated in their report,
          which is incorporated herein by reference, and have been so
          incorporated in reliance upon the report of such firm given upon
          their authority as experts in accounting and auditing.
         

        
         

        
               The statements made as to matters of law and legal
          conclusions in the documents incorporated in this Prospectus by
          reference and under "Description of the Secured Notes" herein
          have been reviewed by Bruce B. Samson, Esquire, Portland, Oregon. 
          Mr. Samson is General Counsel of the Company.  These statements
          and conclusions are set forth in reliance upon the opinion of Mr.
          Samson given upon his authority as an expert.  The statements
          made as to matters of law and legal conclusions under
          "Description of the Unsecured Notes" herein have been reviewed by
          Messrs. Reid & Priest LLP, New York, New York.  These statements
          and conclusions are set forth in reliance upon the opinion of
          Messrs. Reid & Priest LLP given upon their authority as experts. 
          As of December 31, 1996, Mr. Samson owned 8,780 shares of the
          Company's common stock (including approximately 2,687 shares held
          in Company's Retirement K Savings Plan at December 31, 1996) and
          has been granted options to purchase 6,091 shares at a price of
          $16.59, 3,000 shares at a price of $24.00 per share and 7,500
          shares at a price of $20.92 per share, the market prices of the
          shares on the dates of such grants as adjusted to reflect a 3-
          for-2 split of the Company's Common Stock.  Mr. Samson's shares,
          including the underlying shares subject to options granted to
          him, had a fair market value at December 31, 1996 of
          approximately $608,900.
         

                                       12
          <PAGE>

                                       LEGALITY

               The legality of the Medium-Term Notes will be passed upon
          for the Company by Mr. Samson and by Messrs. Reid & Priest LLP,
          New York, New York, and for the agents by Messrs. Simpson Thacher
          & Bartlett (a partnership which includes professional
          corporations), New York, New York.  However, all matters
          pertaining to titles, the lien and enforceability of the
          Mortgage, franchises and all other matters of Oregon and
          Washington law, will be passed upon only by Mr. Samson.




                                       13

          <PAGE>

          =================================================================
          NO DEALER, SALESMAN OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO
          GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS NOT CONTAINED
          IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH INFORMATION OR
          REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
          BY THE COMPANY. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER OF
          ANY SECURITIES OTHER THAN THOSE TO WHICH IT RELATES OR AN OFFER
          TO SELL, OR A SOLICITATION OF AN OFFER TO BUY, TO ANY PERSON IN
          ANY JURISDICTION WHERE SUCH AN OFFER OR SOLICITATION WOULD BE
          UNLAWFUL.  NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE
          MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY
          IMPLICATION THAT THE INFORMATION CONTAINED HEREIN IS CORRECT AS
          OF ANY TIME SUBSEQUENT TO THE DATE HEREOF.




                                  TABLE OF CONTENTS


          Available Information . . . . . . . . . . . . . . . . . . . .   2

          Incorporation of Certain Documents by Reference . . . . . . .   2

          The Company . . . . . . . . . . . . . . . . . . . . . . . . .   2

          Use of Proceeds and Financing Program . . . . . . . . . . . .   2

          Ratio of Earnings to Fixed Charges  . . . . . . . . . . . . .   3

          Book-Entry System . . . . . . . . . . . . . . . . . . . . . .   3

          Description of the Secured Notes  . . . . . . . . . . . . . .   5

          Description of the Unsecured Notes  . . . . . . . . . . . . .   8

        
          Plan of Distribution  . . . . . . . . . . . . . . . . . . . .  11

          Experts . . . . . . . . . . . . . . . . . . . . . . . . . . .  12

          Legality  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
         


          =================================================================

          =================================================================








                                     $165,000,000


                                      NORTHWEST
                                 NATURAL GAS COMPANY



                              SECURED MEDIUM-TERM NOTES,
                                       SERIES B
                           (SERIES OF FIRST MORTGAGE BONDS)
                                         AND
                             UNSECURED MEDIUM-TERM NOTES,
                                       SERIES B

                           Due from Nine Months to 30 Years
                                  from Date of Issue



                               -----------------------
                                 P R O S P E C T U S
                               -----------------------




                                 MERRILL LYNCH & CO.

                               PAINEWEBBER INCORPORATED



            
                                    April __, 1997
             

          =================================================================

          <PAGE>

                                       PART II

                        INFORMATION NOT REQUIRED IN PROSPECTUS


          ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
                    (ESTIMATED, EXCEPT SEC FILING FEE).

           Filing Fee-Securities and Exchange
             Commission  . . . . . . . . . . . . . . . . . .   $ 45,455

           Fees of Trustees, including counsel
             and authentication fees . . . . . . . . . . . .     10,000

           Legal fees  . . . . . . . . . . . . . . . . . . .    100,000

           Accounting fees and expenses  . . . . . . . . . .     15,000

           Rating Agencies' fees   . . . . . . . . . . . . .     60,000

           Printing and engraving  . . . . . . . . . . . . .     10,000

           Miscellaneous expense   . . . . . . . . . . . . .     11,545
                                                               --------
             Total expenses  . . . . . . . . . . . . . . . .   $252,000
                                                               ========


          ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

          The Oregon Business Corporation Act (the "Act") provides, in
          general, that a director or officer of a corporation who has been
          or is threatened to be made a defendant in a legal proceeding
          because that person is or was a director or officer of the
          corporation:

          (1)  shall be indemnified by the corporation for all expenses of
          such litigation when the director or officer is wholly successful
          on the merits or otherwise;

          (2)  may be indemnified by the corporation for the expenses,
          judgments, fines and amounts paid in settlement of such
          litigation (other than a derivative lawsuit) if he or she acted
          in good faith and in a manner reasonably believed to be in, or at
          least not opposed to, the best interests of the corporation (and,
          in the case of a criminal proceeding, had no reasonable cause to
          believe the conduct was unlawful); and

          (3)  may be indemnified by the corporation for expenses of a
          derivative lawsuit (a suit by a shareholder alleging a breach by
          a director or officer of a duty owed to the corporation) if he or
          she acted in good faith and in a manner reasonably believed to be
          in, or at least not opposed to, the best interests of the
          corporation, provided the director or officer is not adjudged
          liable to the corporation.

          The Act also authorizes the advancement of litigation expenses to
          a director or officer upon receipt of a written affirmation of
          the director's or officer's good faith belief that the standard
          of conduct in Section (2) or (3) above has been met and an
          undertaking by such director or officer to repay such expenses if
          it is ultimately determined that he or she did not meet that
          standard and, therefore, is not entitled to be indemnified.  The
          Act also provides that the indemnification provided thereunder
          shall not be deemed exclusive of any other rights to which those
          indemnified may be entitled under any bylaw, agreement, vote of
          shareholders or disinterested directors or otherwise.

          The Company's Bylaws provide that the Company shall indemnify
          directors and officers to the fullest extent permitted under the
          Act, thus making mandatory the discretionary indemnification
          authorized by the Act.

          The Company's Restated Articles of Incorporation provide that the
          Company shall indemnify its officers and directors to the fullest
          extent permitted by law, which may be broader than the
          indemnification authorized by the Act.

          The Company's shareholders have approved and the Company has
          entered into indemnity agreements with its directors and officers
          which provide for indemnity to the fullest extent permitted by
          law and also alter or clarify the statutory indemnity in the
          following respects:

          (1)  prompt advancement of litigation expenses is provided if the
          director or officer makes the required affirmation and
          undertaking;

          (2)  the director or officer is permitted to enforce the
          indemnity obligation in court and the burden is on the Company to
          prove that the director or officer is not entitled to
          indemnification;

                                       II-1
          <PAGE>

          (3)  indemnity is explicitly provided for judgments and
          settlements in derivative actions;

          (4)  prompt indemnification is provided unless a determination is
          made that the director or officer is not entitled to
          indemnification; and

          (5)  partial indemnification is permitted if the director or
          officer is not entitled to full indemnification.

          The Company maintains in effect a policy of insurance providing
          for reimbursement to the Company of payments made to directors
          and officers as indemnity for damages, judgments, settlements,
          costs and expenses incurred by them which the Company may be
          required or permitted to make according to applicable law, common
          or statutory, or under provisions of its Restated Articles of
          Incorporation, Bylaws or agreements effective under such laws.

          ITEM 16. LIST OF EXHIBITS.

          1        -    Form of Distribution Agreement.

          4(a)*    -    Copy of Mortgage and Deed of Trust, dated as of
                        July 1, 1946, to Bankers Trust Company and R.G.
                        Page (to whom Stanley Burg is now successor),
                        Trustees (filed as Exhibit 7(j) in File No. 2-
                        6494), together with Indentures supplemental
                        thereto Nos. 1 through 14, dated, respectively, as
                        of June 1, 1949, March 1, 1954, April 1, 1956,
                        February 1, 1959, July 1, 1961, January 1, 1964,
                        March 1, 1966, December 1, 1969, April 1, 1971,
                        January 1, 1975, December 1, 1975, July 1, 1981,
                        June 1, 1985, and November 1, 1985 (filed as
                        Exhibit 4(d) in File No. 33-1929); No. 15, dated
                        as of July 1, 1986 (filed as Exhibit (4)(c) in
                        File No. 33-24168); Nos. 16, 17 and 18, dated,
                        respectively, as of November 1, 1988, October 1,
                        1989 and July 1, 1990 (filed as Exhibit (4)(c) in
                        File No. 33-40482); No. 19, dated as of June 1,
                        1991 (filed as Exhibit 4(c) in File No. 33-64014;
                        and No. 20, dated as of June 1, 1993 (filed as
                        Exhibit 4(c) in File No. 33-53795).

          4(b)*    -    Copy of Indenture, dated as of June 1, 1991, to
                        Bankers Trust Company, Trustee, relating to the
                        Unsecured Notes (filed as Exhibit 4(e) in File No.
                        33-64014).

        
          4(c)*    -    Copy of Officers' Certificate, dated as of June
                        18, 1993, establishing series of Unsecured Notes
                        and Form of Instructions for both Secured and
                        Unsecured Notes (filed as Exhibit 4(f) to Form 10-
                        K for the year ended December 31, 1993).

          4(d)     -    Form of Officers' Certificate supplementing the
                        Officers' Certificate, dated as of June 18, 1993,
                        establishing series of Unsecured Notes.
         

          5(a)**   -    Opinion of Bruce B. Samson, Esquire.

             
          5(b)**   -    Opinion of Messrs. Reid & Priest
                        LLP.

          12*      -    Computation of Ratio of Earnings to Fixed Charges
                        (filed as Exhibit 12 to Form 10-K for the year
                        ended December 31, 1996).
         

          23       -    Consent of Deloitte & Touche LLP.  (The consents
                        of Bruce B. Samson, Esquire, and of Reid & Priest
                        LLP are included in their opinions filed,
                        respectively, as Exhibits 5(a) and 5(b)).

        
          24**     -    Power of Attorney

          25(a)**  -    Statement of Eligibility of the Corporate Mortgage
                        Trustee on Form T-1.

          25(b)**  -    Statement of Eligibility of the Individual
                        Mortgage Trustee on Form T-2.

          25(c)**  -    Statement of Eligibility of the Indenture Trustee
                        on Form T-1.
         

          ---------------------------------
          *   Incorporated herein by reference as indicated.

          **  Previously filed.

                                       II-2
          <PAGE>

          ITEM 17.  UNDERTAKINGS.

          The undersigned registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are
          being made, a post-effective amendment to this registration
          statement:

              (i)    To include any prospectus required by Section 10(a)(3)
              of the Securities Act of 1933;

              (ii)   To reflect in the prospectus any facts or events
              arising after the effective date of the registration
              statement (or the most recent post-effective amendment
              thereof) which, individually or in the aggregate, represent
              a fundamental change in the information set forth in the
              registration statement;

              (iii)  To include any material information with respect to
              the plan of distribution not previously disclosed in the
              registration statement or any material change to such
              information in the registration statement;

          provided, however, that the undertakings set forth in paragraphs
          (i) and (ii) above do not apply if the registration statement is
          on Form S-3 and the information required to be included in a
          post-effective amendment by those paragraphs is contained in
          periodic reports filed by the registrant pursuant to section 13
          or section 15(d) of the Securities Exchange Act of 1934 that are
          incorporated by reference in this registration statement.

          (2)   That, for the purpose of determining liability under the
          Securities Act of 1933, each such post-effective amendment that
          contains a form of prospectus shall be deemed to be a new
          registration statement relating to the securities offered
          therein, and the offering of such securities at that time shall
          be deemed to be the initial bona fide offering thereof.

          (3)   To remove from registration by means of a post-effective
          amendment any of the securities being registered which remain
          unsold at the termination of the offering.

          The undersigned registrant hereby undertakes, that for purposes
          of determining any liability under the Securities Act of 1933,
          each filing of the registrant's annual report pursuant to section
          13(a) or 15(d) of the Securities Exchange Act of 1934 that is
          incorporated by reference in the registration statement shall be
          deemed to be a new registration statement relating to the
          securities offered therein and the offering of such securities at
          that time shall be deemed to be the initial bona fide offering
          thereof.

          Insofar as indemnification for liabilities arising under the
          Securities Act of 1933 may be permitted to directors, officers
          and controlling persons of the registrant pursuant to the
          provisions described under Item 15 of this registration
          statement, or otherwise, the registrant has been advised that in
          the opinion of the Securities and Exchange Commission such
          indemnification is against public policy as expressed in the
          Securities Act of 1933 and is, therefore, unenforceable.  In the
          event that a claim for indemnification against such liabilities
          (other than the payment by the registrant of expenses incurred or
          paid by a director, officer or controlling person of the
          registrant in the successful defense of any action, suit or
          proceeding) is asserted by such director, officer or controlling
          person in connection with the securities being registered, the
          registrant will, unless in the opinion of its counsel the matter
          has been settled by controlling precedent, submit to a court of
          appropriate jurisdiction the question whether such indem-
          nification by it is against public policy as expressed in the
          Securities Act of 1933 and will be governed by the final
          adjudication of such issue.


                                       II-3
          <PAGE>

            
             
                                      SIGNATURES

            
             Pursuant to the requirements of the Securities Act of 1933,
          the registrant certifies that it has reasonable grounds to
          believe that it meets all of the requirements for filing on Form
          S-3 and has duly caused this registration statement to be signed
          on its behalf by the undersigned, thereunto duly authorized, in
          the City of Portland, and State of Oregon on the twenty-second
          day of April, 1997.
             

                                  NORTHWEST NATURAL GAS COMPANY
            
                                  By:  /s/ Bruce R. DeBolt  
                                     ---------------------------------
                                       Bruce R. DeBolt
                                       Senior Vice President, Finance, 
                                       and Chief Financial Officer
             

          Pursuant to the requirements of the Securities Act of 1933, this
          registration statement has been signed below by the following
          persons in the capacities and on the date indicated.

        Signature                        Title                   Date
        ---------                        -----                   ----

        
     /s/ Richard G. Reiten*      Principal Executive Officer,  April 22, 1997
     -----------------------     and Director
        Richard G. Reiten,       
        President and Chief
        Executive Officer


     /s/ Bruce R. DeBolt         Principal Financial           April 22, 1997
     -----------------------     Officer
        Bruce R. DeBolt,        
        Senior Vice President,
        Finance, and Chief
        Financial Officer


     /s/ D. James Wilson*        Principal Accounting          April 22, 1997
     -----------------------     Officer
        D. James Wilson,         
        Treasurer and Controller


     /s/ Mary Arnstad*                 Director  )
     -----------------------                     )
        Mary Arnstad                             )
                                                 )
     /s/ Thomas E. Dewey, Jr.*         Director  )
     -----------------------                     )
        Thomas E. Dewey, Jr.                     )
                                                 )
     /s/ Tod R. Hamachek*              Director  )
     -----------------------                     )
        Tod R. Hamachek                          )
                                                 )
     /s/ Richard B. Keller*            Director  )
     -----------------------                     )
        Richard B. Keller                        )
                                                 )
     /s/ Wayne D. Kuni*                Director  )
     -----------------------                     )
        Wayne D. Kuni                            )
                                                 )
     /s/ Randall C. Pape*              Director  )             April 22, 1997
     -----------------------                     )
        Randall C. Pape                          )
                                                 )
     /s/ Robert L. Ridgley*            Director  )
     -----------------------                     )
        Robert L. Ridgley                        )
                                                 )
     /s/ Dwight A. Sangrey*            Director  )
     -----------------------                     )
        Dwight A. Sangrey                        )
                                                 )
     /s/ Melody C. Teppola*            Director  )
     -----------------------                     )
        Melody C. Teppola                        )
                                                 )
     /s/ Russell F. Tromley*           Director  )
     -----------------------                     )
        Russell F. Tromley                       )
                                                 )
     /s/ Benjamin R. Whiteley*         Director  )
     -----------------------                     )
        Benjamin R. Whiteley                     )

     By:* /s/ Bruce R. DeBolt
        -------------------------------
        Bruce R. DeBolt
        Attorney-in-fact
         

                                       II-4
     <PAGE>

                                  INDEX TO EXHIBITS

     Exhibit
     -------

     1        Form of Distribution Agreement

     4(a)*    Copy of Mortgage and Deed of Trust, dated as of July 1, 1946, to
              Bankers Trust Company and R.G. Page (to whom Stanley Burg is now
              successor), Trustees (filed as Exhibit 7(j) in File No. 2-6494),
              together with Indentures supplemental thereto (Nos. 1 through 14,
              dated, respectively, as of June 1, 1949, March 1, 1954, April 1,
              1956, February 1, 1959, July 1, 1961, January 1, 1964, March 1,
              1966, December 1, 1969, April 1, 1971, January 1, 1975, December
              1, 1975, July 1, 1981, June 1, 1985, and November 1, 1985 (filed
              as Exhibit 4(d) in File No. 33-1929); No. 15, dated as of July 1,
              1986 (filed as Exhibit (4)(c) in File No. 33-24168); Nos. 16, 17
              and 18, dated, respectively, as of November 1, 1988, October 1,
              1989 and July 1, 1990 (filed as Exhibit (4)(c) in File No. 33-
              40482); No. 19, dated as of June 1, 1991 (filed as Exhibit 4(c) in
              File No. 33-64014; and No. 20, dated as of June 1, 1993 (filed as
              Exhibit 4(c) in File No. 33-53795).

     4(b)*    Copy of Indenture, dated as of June 1, 1991, to Bankers Trust
              Company, Trustee, relating to the Unsecured Notes (filed as
              Exhibit 4(e) in File No. 33-64014).

        
     4(c)*    Copy of Officers' Certificate, dated as of June 18, 1993,
              establishing series of Unsecured Notes and Form of Instructions
              for both Secured and Unsecured Notes (filed as Exhibit 4(f) to
              Form 10-K for the year ended December 31, 1993).

     4(d)     Form of Officers' Certificate supplementing the Officers'
              Certificate, dated as of June 18, 1993, establishing series of
              Unsecured Notes.
         

     5(a)**   Opinion of Bruce B. Samson, Esquire

        
     5(b)**   Opinion of Messrs. Reid & Priest LLP

     12*      Computation of Ratio of Earnings to Fixed Charges (filed
              as Exhibit 12 to Form 10-K for the year ended December
              31, 1996).
         

     23       Consent of Deloitte & Touche LLP.  (The consents of Bruce
              B. Samson, Esquire, and of Reid & Priest LLP are included
              in their opinions filed, respectively, as Exhibits 5(a)
              and 5(b)).

        
     24**     Power of Attorney

     25(a)**  Statement of Eligibility of the Corporate Mortgage Trustee 
              Form T-1.

     25(b)**  Statement of Eligibility of the Individual Mortgage Trustee on
              Form T-2.

     25(c)**  Statement of Eligibility of the Indenture Trustee on Form T-1.
         


     ----------------------------------
     *  Incorporated herein by reference as indicated.

     ** Previously filed.



                                                           Exhibit 1


                            Northwest Natural Gas Company

                                     $165,000,000

                             Medium-Term Notes, Series B


                                Distribution Agreement
                                ----------------------


                                                                 , 1997
                                                       ----------


     Merrill Lynch & Co.
     Merrill Lynch, Pierce, Fenner & Smith
       Incorporated
     World Financial Center
     North Tower
     New York, New York  10281

     PaineWebber Incorporated
     1285 Avenue of the Americas
     New York, New York  10019

     Dear Sirs:

               Northwest Natural Gas Company, an Oregon corporation (the
     "Company"), proposes to issue and sell from time-to-time not to exceed
     $165,000,000 of its First Mortgage Bonds, designated Secured Medium-Term
     Notes, Series B (the "Secured Notes"), and its Unsecured Medium-Term Notes,
     Series B (the "Unsecured Notes", and, together with the Secured Notes, the
     "Securities").  The Secured Notes will be issued under the Company's
     Mortgage and Deed of Trust, dated as of July 1, 1946, to Bankers Trust
     Company (the "Mortgage Trustee" or the "Trustee") and R.G. Page (Stanley
     Burg, successor), as trustees, as supplemented (such Mortgage and Deed of
     Trust as supplemented being hereinafter referred to as the "Mortgage" or
     the "Indenture").  The Unsecured Notes will be issued under an indenture,
     dated as of June 1, 1991 (the "Note Indenture" or the "Indenture"), between
     the Company and Bankers Trust Company, as trustee (the "Indenture Trustee"
     or the "Trustee").  The Securities shall have the maturities, interest
     rates, if any, redemption provisions and other terms set forth in the
     Prospectus referred to below, as it may be amended or supplemented from
     time-to-time.  The Securities will be issued, and the terms thereof
     established, from time-to-time, by the Company in accordance with the
     respective Indentures.

               The Company represents, warrants, covenants and agrees with each
     of you and with each other person which shall become a party to this
     agreement (individually, an "Agent", and collectively, the "Agents") and
     each Agent, severally and not jointly, covenants and agrees with the
     Company as follows:

               1.   Representations and Warranties of the Company.  The Company
                    ---------------------------------------------
     represents and warrants to each Agent that:

               (a)  The Company is a corporation duly organized and validly
          existing in good standing under the laws of the State of Oregon, and
          is qualified to do business and is in good standing as a foreign
          corporation in the State of Washington, with power (corporate and
          other) to own its properties and conduct its business as described in
          the Prospectus referred to below.

               (b)  An initial registration statement on Form S-3 (Registration
          No. 33-64014) (the "Initial Registration Statement") in respect of
          $150,000,000 aggregate principal amount of the Company's First
          Mortgage Bonds designated Secured Medium-Term Notes Series B, and
          Unsecured Medium-Term Notes Series B (of which $15,000,000 remain
          unsold on the date hereof) has been filed with the Securities and
          Exchange Commission (the "Commission") under the Securities Act of
          1933, as amended (the "Act"), in the form heretofore delivered
          (excluding the exhibits thereto but including the documents
          incorporated by reference in the prospectus included therein) to such
          Agent, and such Initial Registration Statement in such form has been
          declared effective by the Commission and no stop order suspending its
          effectiveness has been issued and no proceeding for that purpose has
          been initiated or threatened by the Commission.  A subsequent
          registration statement on Form S-3 (Registration No. 333-15323), as
          amended (the "Subsequent Registration Statement"), in respect of an
          additional $150,000,000 aggregate principal amount of the Securities
          has been filed with the Commission under the Act, in the form
          heretofore delivered or to be delivered (excluding the exhibits
          thereto but including the documents incorporated by reference in the
          prospectus included therein) to such Agent, and such Subsequent
          Registration Statement in such form has been declared effective by the
          Commission and no stop order suspending its effectiveness has been
          issued and no proceeding for that purpose has been initiated or
          threatened by the Commission (any preliminary prospectus included in
          the Subsequent Registration Statement being hereinafter called a "Pre-
          liminary Prospectus").  The Initial Registration Statement and the
          Subsequent Registration Statement, including all exhibits thereto but
          excluding Forms T-1 and T-2, as amended at the time each became
          effective, are hereinafter called the "Registration Statement"; the
          combined prospectus included as a part of the Subsequent Registration
          Statement (including, if applicable, any prospectus supplement)
          relating to the Securities, in the form in which it most recently has
          been filed with the Commission on or prior to the date of this
          Agreement, is hereinafter called the "Prospectus"; any reference
          herein to any Preliminary Prospectus or the Prospectus shall be deemed
          to refer to and include the documents filed by the Company under the
          Securities Exchange Act of 1934, as amended (the "Exchange Act"), and
          incorporated therein by reference as of the date of such Preliminary
          Prospectus or Prospectus; any reference to any amendment or supplement
          to any Preliminary Prospectus or Prospectus, including any supplement
          to the Prospectus that sets forth only the terms of a particular issue
          of the Securities (a "Pricing Supplement"), shall be deemed to refer
          to and include the documents filed by the Company under the Exchange
          Act and incorporated therein by reference as of the date of such
          amendment or Pricing Supplement; and any reference to the Prospectus
          as amended or supplemented shall be deemed to refer to and include the
          Prospectus as then amended or supplemented (including the applicable
          Pricing Supplement) in relation to a particular issue of Securities,
          in the form filed with the Commission pursuant to Rule 424(b) under
          the Act, including any documents filed by the Company under the
          Exchange Act and incorporated therein by reference as of the date of
          such amendment or supplement.

               (c)  The documents incorporated by reference in the Prospectus,
          when filed with the Commission or, if later, when they became
          effective, conformed in all material respects with the requirements of
          the Act or the Exchange Act, as applicable, and the applicable rules
          and regulations of the Commission thereunder; none of such documents
          when so filed or when such documents became effective, as the case may
          be, included an untrue statement of a material fact or omitted to
          state a material fact required to be stated therein or necessary to
          make the statements therein, in the light of the circumstances under
          which they were made, not misleading; any future documents so filed or
          incorporated by reference in the Prospectus, or any amendment or
          supplement thereto, when filed with the Commission or, if later, when
          effective, will conform in all material respects with the applicable
          requirements of the Act or the Exchange Act, as applicable, and the
          rules and regulations of the Commission thereunder, and when such
          documents are filed or become effective, as the case may be, they will
          not contain an untrue statement of a material fact or omit to state a
          material fact required to be stated therein or necessary to make the
          statements therein, in the light of the circumstances under which they
          were made, not misleading; provided, however, that the Company makes
                                     --------  -------
          no representations or warranties as to information contained in or
          omitted from the Prospectus as amended or supplemented in reliance
          upon and in conformity with information furnished in writing to the
          Company by any Agent specifically for use therein;

               (d)  The Initial Registration Statement and the Subsequent
          Registration Statement when each became effective conformed, and the
          Prospectus conforms, and any amendment or supplement thereto will
          conform, in all material respects, with the provisions of the Act and
          the Trust Indenture Act of 1939, as amended (the "Trust Indenture
          Act"), and the rules and regulations of the Commission thereunder; and
          the Initial Registration Statement and the Subsequent Registration
          Statement when each became effective did not, the Prospectus does not
          (and on each of the dates referred to in clause (i) of Section 6 will
          not) and any amendment or supplement to the Prospectus, as of its date
          and on each of the dates referred to in clause (i) of Section 6, will
          not, contain an untrue statement of a material fact or omit to state a
          material fact required to be stated therein or necessary to make the
          statements therein not misleading; provided, however, that the Company
                                             --------  -------
          makes no representations or warranties as to information contained in
          or omitted from any such document in reliance upon and in conformity
          with information furnished in writing to the Company by any Agent
          specifically for use therein;

               (e)  Except as set forth in or contemplated by the Prospectus,
          since the date as of which information is given in the Prospectus (i)
          there has not been any material adverse change in the condition of the
          Company and its subsidiaries taken as a whole, financial or otherwise,
          (ii) there has not been any transaction entered into by the Company or
          any of its subsidiaries which is material to the Company and its
          subsidiaries taken as a whole, other than transactions in the ordinary
          course of business, and (iii) neither the Company nor any of its
          subsidiaries has incurred any contingent obligation which is material
          to the Company and its subsidiaries taken as a whole;

               (f)  The Securities have been duly authorized, and, when issued
          pursuant to their respective Indentures and delivered pursuant to this
          Agreement and any Terms Agreement (as defined in Section 3 hereof),
          will have been duly executed, authenticated, issued and delivered,
          will constitute valid and legally binding obligations of the Company,
          enforceable in accordance with their terms, except as their
          enforceability may be limited by laws and principles of equity
          relating to or affecting generally the enforcement of creditors'
          rights, including without limitation, bankruptcy and insolvency laws,
          and will be entitled to the benefits provided by their respective
          Indentures (which will be substantially in the form filed as exhibits
          to the Subsequent Registration Statement); the Indentures have been
          duly authorized and qualified under the Trust Indenture Act, consti-
          tute valid and legally binding instruments, enforceable in accordance
          with their terms, except as their enforceability may be limited by
          laws and principles of equity relating to or affecting generally the
          enforcement of creditors' rights, including without limitation,
          bankruptcy and insolvency laws; and the Indentures conform, and the
          Securities of each issue, when issued, will conform, in all material
          respects, to the descriptions thereof in the Prospectus as amended or
          supplemented with respect to such issue;

               (g)  The issue and sale of the Securities, the compliance by the
          Company with all of the provisions of the Securities, the Indentures,
          this Agreement and any Terms Agreement, and the consummation by the
          Company of the transactions herein and therein contemplated will not
          result in a breach or violation of any of the terms or provisions of,
          or constitute a default under, any indenture, mortgage, deed of trust,
          loan agreement or other agreement or instrument to which the Company
          is a party or by which the Company is bound or to which any of the
          property of the Company is subject, nor will such action result in any
          violation of the provisions of any statute or the Restated Articles of
          Incorporation, as amended, or the Bylaws, as amended, of the Company
          or any order, rule or regulation of any court or any regulatory
          authority or other governmental agency or body having jurisdiction
          over the Company or any of its properties; and no consent, approval,
          authorization, order, registration or qualification of or with any
          court or governmental agency or body is required for the solicitation
          of offers to purchase Securities and the issue and sale of the
          Securities or the consummation by the Company of the other
          transactions contemplated by the Indentures, this Agreement or any
          Terms Agreement, except such as have been obtained at or prior to the
          Commencement Date (as defined in Section 4 hereof), will have been
          obtained under the Act, the Trust Indenture Act and the public utility
          laws of the States of Oregon and Washington and such as may be
          required under state securities or Blue Sky laws in connection with
          the solicitation by such Agent of offers to purchase Securities from
          the Company and with purchases of Securities by such Agent as
          principal, as the case may be, in each case in the manner contemplated
          hereby;  and

               (h)  Other than as set forth or contemplated in the Prospectus,
          there are no legal or governmental proceedings pending to which the
          Company is a party or to which any property of the Company is subject,
          which, if determined adversely to the Company, would individually or
          in the aggregate have a material adverse effect on the consolidated
          financial position, stockholders' equity or consolidated results of
          operations of the Company, and, to the best of the Company's
          knowledge, no such proceedings are threatened.

               2.   Obligations of the Agents and the Company.
                    -----------------------------------------

               (a)  Subject to the terms and conditions hereof and to the
          reservation by the Company of the right to sell Securities directly on
          its own behalf, the Company hereby (i) appoints each of Merrill Lynch
          & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated and
          PaineWebber Incorporated as an agent of the Company for the purpose of
          soliciting and receiving offers to purchase Securities from the
          Company and (ii) reserves the right, from time to time, to appoint
          additional agents for the purpose of soliciting and receiving offers
          to purchase Securities from the Company; provided that each such
          additional agent shall be required to become a party to this Agreement
          and undertake the obligations of an Agent hereunder pursuant to an
          Additional Agent Appointment Agreement ("Additional Agent Appointment
          Agreement") substantially in the form of Exhibit 1 hereto.

               (b)  On the basis of the representations and warranties herein,
          and subject to the terms and conditions hereof, each of the Agents, as
          agent of the Company, severally and not jointly, agrees to use its
          reasonable best efforts to solicit and receive offers to purchase
          particular issues of the Securities from the Company upon the terms
          and conditions set forth in the Prospectus as amended or supplemented
          with respect thereto.  Each Agent will promptly advise the Company by
          telephone or other appropriate means of all reasonable offers to
          purchase Securities, other than those rejected by such Agent.  The
          Company shall not, without the consent of each Agent, which consent
          shall not unreasonably be withheld, solicit or accept offers to
          purchase, or sell, any debt securities with a maturity, at the time of
          original issuance, of from nine months to 30 years, except (i)
          pursuant to this Agreement, (ii) pursuant to a private placement not
          constituting a public offering under the Act, or (iii) in connection
          with a firm commitment underwriting pursuant to an underwriting
          agreement that does not provide for a continuous offering.  However,
          the Company, subject to Section 5(f) hereof, reserves the right to
          sell, and may solicit and accept offers to purchase, Securities
          directly on its own behalf, and, in the case of any such sale not
          resulting from a solicitation made by an Agent, no commission will be
          payable with respect to such sale.

               (c)  Procedural details relating to the issue and delivery of
          Securities, the solicitation of offers to purchase Securities and the
          payment therefor, unless an Agent and the Company shall otherwise
          agree, shall be as set forth in the Administrative Procedure attached
          hereto as Annex I (the "Administrative Procedure").  The provisions of
          the Administrative Procedure shall apply to all transactions
          contemplated hereunder other than those made pursuant to a Terms
          Agreement.  Each Agent and the Company shall perform the respective
          duties and obligations specifically provided to be performed by each
          of them in the Administrative Procedure.  The Company will furnish to
          the Trustees a copy of the Administrative Procedure as from time to
          time in effect.

               (d)  The Company reserves the right, in its sole discretion, to
          instruct the Agents to suspend, at any time, for any period of time or
          permanently, the solicitation of offers to purchase the Securities. 
          As soon as practicable, but in any event not later than one business
          day after receipt of notice from the Company, the Agents will suspend
          solicitation of offers to purchase Securities from the Company until
          such time as the Company has advised the Agents that such solicitation
          may be resumed.

               (e)  The Company agrees to pay each Agent a commission, at the
          time of settlement (each a "Settlement Date") of any sale of a
          Security by the Company as a result of a solicitation made by such
          Agent, in an amount equal to the following applicable percentage of
          the principal amount of such Security sold:

                                                     Commission
                                                   (percentage of
                                                      aggregate
                                                  principal amount
          Range of Maturities                    of Securities sold)
          -------------------                    -------------------

     From 9 months to less than 1 year                 .125%
     From 1 year to less than 18 months                .150%
     From 18 months to less than 2 years               .200%
     From 2 years to less than 3 years                 .250%
     From 3 years to less than 4 years                 .350%
     From 4 years to less than 5 years                 .450%
     From 5 years to less than 6 years                 .500%
     From 6 years to less than 7 years                 .550%
     From 7 years to less than 10 years                .600%
     From 10 years to less than 15 years               .625%
     From 15 years to less than 20 years               .675%
     From 20 years to 30 years                         .750%


               3.   Sales to Agents as Principal.  Each sale of Securities to an
                    ----------------------------
     Agent, as principal, shall be made in accordance with the terms of this
     Agreement and (unless the Company and such Agent shall otherwise agree) a
     separate agreement (each a "Terms Agreement"), which will provide for the
     sale of such Securities to, and the purchase thereof by, such Agent, as
     principal.  A Terms Agreement may be either (i) a written agreement
     substantially in the form of Annex II hereto, or (ii) an oral agreement
     between either Agent and the Company confirmed in writing by such Agent.  A
     Terms Agreement may also specify certain provisions relating to the
     reoffering of such Securities by such Agent.  Each Terms Agreement shall
     specify the principal amount of Securities to be purchased by an Agent
     pursuant thereto, the price to be paid to the Company for such Securities,
     any provisions relating to the rights of, and defaults by, any underwriters
     acting together with such Agent in the reoffering of the Securities, the
     time and date of delivery of and payment for such Securities (each, a "Time
     of Delivery") and place of delivery of such Securities, and any
     requirements for opinions of counsel, accountants' letters and officers'
     certificates pursuant to Section 5 hereof.  Each purchase of Securities,
     unless otherwise agreed shall be at a discount equivalent to the commission
     payable to an Agent, acting as agent, with respect to a sale of Securities
     of identical maturity, as set forth in Section 2(e) hereof).  The Agent may
     engage the services of any other broker or dealer in connection with the
     resale of the Securities purchased as principal and may allow any portion
     of the discount received in connection with such purchase from the Company
     to be paid to such brokers and dealers.  The commitment of an Agent to
     purchase Securities as principal, whether pursuant to a Terms Agreement or
     otherwise, shall be deemed to have been made on the basis of the represen-
     tations and warranties of the Company herein contained and, to the extent
     not otherwise agreed upon in a Terms Agreement or otherwise, shall be
     subject to the terms and conditions herein set forth.

               4.   Commencement.  At 11:00 a.m., New York City time, on the 
                    ------------
     date of this Agreement or at such later date and time as may be agreed upon
     between the Agents and the Company not later than the day prior to the
     earlier of the day on which the solicitation of offers to purchase
     Securities is to begin or on which any Terms Agreement shall be executed
     (such time and date being referred to herein as the "Commencement Date"),
     the Agents shall be furnished at the offices of Reid & Priest LLP, 40 West
     57th Street, New York, New York:

               (a)  An opinion of Simpson Thacher & Bartlett (a partnership
          which includes professional corporations), counsel to the Agents,
          dated the Commencement Date, with respect to such matters as such
          Agents may reasonably request, which opinion may rely, as to all
          matters governed by Oregon and Washington law, upon the opinion of
          Bruce B. Samson, Esq., General Counsel for the Company, referred to in
          Section 4(b) hereof;

               (b)  An opinion of Bruce B. Samson, Esq., dated the Commencement
          Date, in form and substance reasonably satisfactory to such Agents, to
          the effect set forth in Annex III, which opinion may rely, as to all
          matters governed by New York law, upon the opinion of Reid & Priest
          LLP referred to in Section 4(c) hereof;

               (c)  An opinion of Reid & Priest LLP, dated the Commencement
          Date, in form and substance reasonably satisfactory to such Agents, to
          the effect set forth in Annex IV, which opinion may rely, as to all
          matters governed by Oregon and Washington law, upon the opinion of
          Bruce B. Samson, Esq., referred to in Section 4(b) hereof;

               (d)  A letter from each of the Company's current and former
          independent accountants with respect to periods during which each was
          the Company's independent accountant, dated the Commencement Date, in
          form and substance reasonably satisfactory to such Agents and subject
          to compliance with the requirements of Statements on Auditing
          Standards issued by the American Institute of Certified Public
          Accountants ("SAS"), to the effect set forth in Annex V hereto; and

               (e)  A certificate of the President or any Vice President of the
          Company, dated the Commencement Date, in form reasonably satisfactory
          to such Agents, (i) as to the accuracy of the representations and
          warranties of the Company herein at and as of the Commencement Date,
          (ii) as to the performance by the Company in all material respects of
          all of its obligations hereunder to be performed at or prior to the
          Commencement Date, (iii) as to the matters set forth in Section 1(e)
          hereof, (iv) as to the absence of any stop order of the Commission
          suspending the effectiveness of the Registration Statement or any
          pending or contemplated proceedings for such purpose, (v) as to the
          full force and effect of the authorizing orders of the Public Utility
          Commission of Oregon and the Washington Utilities and Transportation
          Commission referred to in Section 7(a) hereof, and (vi) as to such
          other matters as such Agents may reasonably request.

               5.   Covenants of the Company.  The Company covenants and agrees
                    ------------------------
     with each Agent:

               (a)  (i)  To make no amendment or supplement to the Registration
          Statement or the Prospectus (other than a Pricing Supplement) (A)
          prior to the Commencement Date, which any Agent shall reasonably
          disapprove by notice to the Company promptly after receipt of the
          proposed form thereof or (B) after the date of any agreement by such
          Agent, pursuant to a Terms Agreement or otherwise, to purchase
          Securities as principal and prior to the related Time of Delivery
          which such Agent shall reasonably disapprove by notice to the Company
          promptly after receipt of the proposed form thereof; (ii) to prepare,
          with respect to each particular issue of Securities to be sold through
          or to such Agent pursuant to this Agreement, a Terms Agreement or
          otherwise, a Pricing Supplement with respect to such Securities in a
          form reasonably satisfactory to such Agent and to file such Pricing
          Supplement in accordance with Rule 424(b) under the Act; (iii) to make
          no amendment or supplement to the Registration Statement or Pro-
          spectus, other than a Pricing Supplement, without affording such Agent
          a reasonable opportunity for review thereof and comment thereon; (iv)
          to timely file all reports and any definitive proxy or information
          statements required to be filed by the Company with the Commission
          pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act for
          so long as the delivery of a prospectus is required in connection with
          the offering or sale of the Securities, and during such same period to
          advise such Agent, promptly after the Company receives notice thereof,
          of the time when any amendment to the Registration Statement has been
          filed or has become effective or any supplement to the Prospectus or
          any amended Prospectus (other than any Pricing Supplement that relates
          to Securities not purchased through or by such Agent) has been filed
          with the Commission, of the issuance by the Commission of any stop
          order or of any order preventing or suspending the use of any
          prospectus relating to the Securities, of the suspension of the
          qualification of the Securities for offering or sale in any
          jurisdiction, of the initiation or threatening of any proceeding for
          any such purpose, or of any request by the Commission for the
          amendment or supplement of the Registration Statement or Prospectus or
          for additional information; (v) to promptly make every reasonable
          effort to comply with all requests of the Commission for additional
          information; and (vi) in the event of the issuance of any such stop
          order or of any such order preventing or suspending the use of any
          such prospectus or suspending any such qualification, to use its best
          efforts to obtain its withdrawal;

               (b)  From time-to-time, to take such action as such Agent
          reasonably may request to qualify the Securities for offering and sale
          under the securities laws of such jurisdictions as may be approved by
          the Company and to comply with such laws so as to permit the
          continuance of sales and dealings therein for as long as may be
          necessary to complete the distribution or sale of the Securities;
          provided, however, that in connection therewith the Company shall not
          --------  -------
          be required to qualify as a foreign corporation or to file a general
          consent to service of process in any jurisdiction, or to comply with
          any other requirement reasonably deemed by the Company to be unduly
          burdensome; provided, further, that the provisions of this subsection
                      --------  -------
          (b) shall not apply so long as the Securities are "covered securities"
          within the meaning of Section 18 of the Act and any rules and
          regulations thereunder;

               (c)  To furnish such Agent with copies of the Registration
          Statement, each amendment thereto, the Prospectus and each amendment
          or supplement thereto, other than any Pricing Supplement (except as
          provided in the Administrative Procedure), in the form in which it is
          filed with the Commission pursuant to Rule 424(b) under the Act, and
          with copies of the documents incorporated by reference therein (other
          than exhibits incorporated by reference in the Registration
          Statement), each in such quantities as such Agent may reasonably
          request from time-to-time; and, if the delivery of a prospectus is
          required at any time in connection with the offering or sale of the
          Securities to or through an Agent pursuant to this Agreement and if,
          at such time, any event shall have occurred as a result of which the
          Prospectus as then amended or supplemented would include an untrue
          statement of a material fact or omit to state any material fact
          necessary in order to make the statements therein, in the light of the
          circumstances under which they were made, not misleading, or, if for
          any other reason it shall be necessary during such period to amend or
          supplement the Prospectus or to file under the Exchange Act any
          document incorporated by reference in the Prospectus in order to
          comply with the Act, the Exchange Act or the Trust Indenture Act, to
          notify such Agent and request such Agent, in its capacity as agent of
          the Company, to suspend solicitation of offers to purchase Securities
          from the Company (and, if so notified, such Agent shall cease such
          solicitations as soon as practicable, but in any event not later than
          one business day later); and if the Company shall decide to amend or
          supplement the Registration Statement or the Prospectus, to so advise
          such Agent promptly by telephone (confirmed in writing) and to prepare
          and cause to be filed promptly with the Commission an amendment or
          supplement to the Registration Statement or the Prospectus or to file
          any document incorporated by reference in the Prospectus that will
          correct such statement or omission or effect such compliance; provided
                                                                        --------
          that, (i) should such event relate solely to activities of any Agent
          ----
          (except any termination of any Agent's services hereunder), such Agent
          shall assume the expense of preparing and furnishing any such amend-
          ment or supplement; (ii) if, during such period, such Agent shall
          continue to own Securities purchased from the Company as principal or
          such Agent otherwise shall be required to deliver a prospectus in
          respect of transactions in the Securities, the Company shall promptly
          prepare and file with the Commission such an amendment or supplement;
          and (iii) if such Agent shall be required to deliver a prospectus in
          connection with sales of any Securities purchased by it as principal
          at any time nine months or more after the date of such purchase and
          (A) there shall be, as a result of such purchase, no Securities
          remaining to be sold under the Registration Statement or (B) the
          Company, pursuant to Section 2(d) hereof, shall have instructed the
          Agents, during such nine month period, to suspend permanently the
          solicitation of offers to purchase the Securities, such Agent shall
          assume the expense of preparing and furnishing any such amendment or
          supplement in connection with the sales of any Securities purchased by
          such Agent as principal.  (For the purposes of this Section 5(c), the
          Company shall be entitled to assume that a Prospectus shall no longer
          be required to be delivered under the Act from and after the date six
          months from the date of the purchase by an Agent as principal of the
          particular issuance of Securities to which it relates, unless it shall
          have received notice from such Agent to the contrary);

               (d)  To make generally available to its security holders as soon
          as practicable, but in any event not later than eighteen months after
          (i) the effective date of the Registration Statement, (ii) the effec-
          tive date of each post-effective amendment to the Registration
          Statement, and (iii) the date of each filing by the Company with the
          Commission of an Annual Report on Form 10-K that is incorporated by
          reference in the Registration Statement, an earning statement of the
          Company and its subsidiaries (which need not be audited) in accordance
          with Section 11(a) of the Act and the rules and regulations of the
          Commission thereunder (including, at the option of the Company, Rule
          158);

               (e)  For the period ending five years from the date any
          Securities are sold by the Company pursuant to an offer solicited by
          such Agent under this Agreement, to furnish to such Agent copies of
          all reports or other communications (financial or other) furnished to
          stockholders, and deliver to such Agent (i) as soon as they are
          available, copies of any reports and financial statements furnished to
          or filed with the Commission pursuant to Section 13(a), 13(c), 14 or
          15(d) of the Exchange Act, (ii) copies of all registration statements
          filed under the Act (other than those in respect of shareholder or
          employee plans), and (iii) such additional information concerning the
          business and financial condition of the Company as such Agent may from
          time to time reasonably request (such financial statements to be on a
          consolidated basis to the extent the accounts of the Company and its
          subsidiaries are consolidated in reports furnished to its stockholders
          generally or to the Commission);

               (f)  That, from the date of any Terms Agreement or other
          agreement with such Agent to purchase Securities as principal and to
          and including the earlier of (i) the termination of the trading
          restrictions for the Securities purchased thereunder, as notified to
          the Company by such Agent and (ii) the related Time of Delivery, the
          Company, without the prior written consent of such Agent, will not
          offer, sell, contract to sell or otherwise dispose of any debt
          securities of the Company in a public offering which both have a
          maturity of from nine months to 30 years and are substantially similar
          to the Securities;

               (g)  That each acceptance by the Company of an offer to purchase
          Securities procured by such Agent, as agent, and each agreement by the
          Company, pursuant to a Terms Agreement or otherwise, to sell
          Securities to such Agent, as principal, shall be deemed to be an
          affirmation to such Agent that the representations and warranties of
          the Company contained in or made pursuant to this Agreement are true
          and correct as of the date of such acceptance or agreement, as the
          case may be, as though made as of such date, and an undertaking that
          such representations and warranties will be true and correct as of the
          Settlement Date for the Securities relating to such acceptance or as
          of the Time of Delivery relating to such sale, as the case may be, as
          though made as of such date (except that such representations and
          warranties shall be deemed to relate to the Registration Statement and
          the Prospectus as amended and supplemented relating to such Securi-
          ties);

               (h)  That, reasonably in advance of (i) each date as of which an
          Agent reasonably requests an opinion or opinions of Simpson Thacher &
          Bartlett, counsel to the Agents, or other counsel to the Agents
          reasonably satisfactory to the Company, or (ii) each time that the
          Company sells Securities to such Agent as principal pursuant to a
          Terms Agreement or other agreement and such Agent requests an opinion
          or opinions by Simpson Thacher & Bartlett, counsel to the Agents, or
          other counsel to the Agents reasonably satisfactory to the Company,
          the Company shall furnish to such counsel such papers and information
          as they may reasonably request to enable them to furnish to such Agent
          a letter in form reasonably satisfactory to such Agent, to the effect
          that such Agent may rely on the opinion of such counsel referred to in
          Section 4(a) hereof, to the same extent as though it was dated the
          date of such letter (except that the statements in such opinion shall
          be deemed to relate to the Registration Statement and the Prospectus
          as amended and supplemented to the date of such letter), or in lieu of
          such a letter, an opinion of the same tenor as the opinion of such
          counsel referred to in Section 4(a) hereof, but modified to relate to
          the Registration Statement and the Prospectus as amended and supple-
          mented to such date;

               (i)  That each time that (x) the Registration Statement or the
          Prospectus shall be amended or supplemented (other than by a Pricing
          Supplement or by an amendment or supplement providing solely for a
          change in the interest rates of the Securities or similar changes and,
          unless the Agents shall otherwise specify, other than by an amendment
          or supplement which relates exclusively to an offering of debt
          securities other than the Securities), (y) a document incorporated by
          reference in the Prospectus as amended or supplemented (other than a
          Current Report on Form 8-K, unless the Agents shall otherwise specify)
          shall be filed under the Act or Exchange Act (unless waived by the
          Agents), and (z) the Company sells Securities to such Agent, as
          principal, pursuant to a Terms Agreement or other agreement and such
          Terms Agreement or other agreement specifies the delivery of an
          opinion, letter or certificate under this Section 5(i) as a condition
          to the purchase of Securities pursuant to such Terms Agreement or
          other agreement, the Company shall furnish or cause to be furnished to
          such Agent:

               (i)  a letter from Bruce B. Samson, Esq., General Counsel for the
                    Company, or his successor, dated the date of such amendment,
                    supplement, incorporation or Time of Delivery relating to
                    such sale, as the case may be, in form reasonably
                    satisfactory to such Agent, to the effect that such Agent
                    may rely on the opinion of such counsel referred to in
                    Section 4(b) hereof to the same extent as though it were
                    dated the date of such letter (except that the statements in
                    such opinion shall be deemed to relate to the Registration
                    Statement and the Prospectus as amended and supplemented to
                    the date of such letter, excluding, in the case of the
                    statements in the paragraph next following paragraph 13 of
                    such opinion, all documents filed by the Company under the
                    Exchange Act and incorporated by reference into the
                    Registration Statement and Prospectus during or prior to the
                    fiscal year which is the subject of the Company's most
                    recent Annual Report on Form 10-K) or, in lieu of such a
                    letter, an opinion of the same tenor as the opinion of such
                    counsel referred to in Section 4(b) hereof, but modified to
                    relate to the Registration Statement and the Prospectus as
                    so amended and supplemented to such date;

              (ii)  a letter of Reid & Priest LLP, New York, New York, counsel
                    for the Company, or other counsel for the Company reasonably
                    satisfactory to such Agent, dated the date of such
                    amendment, supplement, incorporation or Time of Delivery
                    relating to such sale, as the case may be, in form
                    reasonably satisfactory to such Agent, to the effect that
                    such Agent may rely on the opinion of such counsel referred
                    to in Section 4(c) hereof to the same extent as though it
                    were dated the date of such letter (except that the
                    statements in such opinion shall be deemed to relate to the
                    Registration Statement and the Prospectus as amended and
                    supplemented to the date of such letter, excluding, in the
                    case of the statements in the paragraph next following
                    paragraph 10 of such opinion, all documents filed by the
                    Company under the Exchange Act and incorporated by reference
                    into the Registration Statement and the Prospectus during or
                    prior to the fiscal year which is the subject of the
                    Company's most recent Annual Report on Form 10-K) or, in
                    lieu of such letter, an opinion of the same tenor as the
                    opinion of such counsel referred to in Section 4(c) hereof,
                    but modified to relate to the Registration Statement and the
                    Prospectus as so amended and supplemented to such date; and

             (iii)  a certificate executed by the President or any Vice
                    President of the Company, dated the date of such supplement,
                    amendment, incorporation or Time of Delivery relating to
                    such sale, as the case may be, in such form as shall be
                    reasonably satisfactory to such Agent, to the effect that
                    the statements contained in the certificate referred to in
                    Section 4(e) hereof are true and correct at such date as
                    though made as of such date (except that such statements
                    shall be deemed to relate to the Registration Statement and
                    the Prospectus as amended and supplemented to such date) or,
                    in lieu of such certificate, a certificate of the same tenor
                    as the certificate referred to in Section 4(e) hereof, but
                    modified to relate to the Registration Statement and the
                    Prospectus as amended and supplemented to such date; and

               (j)  That each time that (x) the Registration Statement or the
          Prospectus shall be amended or supplemented to include additional
          financial information (unless waived by the Agents), and (y) the
          Company sells Securities to such Agent as principal pursuant to a
          Terms Agreement or other agreement and such Terms Agreement or other
          agreement specifies the delivery of a letter under this Section 5(j)
          as a condition to the purchase of Securities pursuant to such Terms
          Agreement or other agreement, and subject to compliance with the
          requirements of SAS issued by the American Institute of Certified
          Public Accountants, the Company shall furnish or cause to be furnished
          to such Agent letters of Deloitte & Touche LLP, Price Waterhouse LLP
          or other independent accountants for the Company reasonably
          satisfactory to the Agent, each with respect to periods during which
          such firm was the independent accountant for the Company, dated the
          date of such amendment, supplement, incorporation or Time of Delivery
          relating to such sale, as the case may be, in form reasonably
          satisfactory to such Agent, to the effect that such Agent may rely
          upon the letter of such accountants referred to in Section 4(d) hereof
          to the same extent as though it were dated the date of such subsequent
          letter (except the statements in such former letter shall be deemed to
          relate to the financial statements included or incorporated in the
          Registration Statement and Prospectus as amended and supplemented to
          the date of such latter letter), or, in lieu of such latter letter, a
          letter of the same tenor as the letter referred to in Section 4(d)
          hereof, but modified to relate to the Registration Statement and the
          Prospectus as amended or supplemented to the date of such letter, with
          such changes as may be necessary to reflect changes in the financial
          statements and other information derived from the accounting records
          of the Company, to the extent such financial statements and other
          information are available as of a date not more than five business
          days prior to the date of such letter;

               (k)  To offer to any person who has agreed to purchase Securities
          as the result of an offer to purchase solicited by such Agent, as
          agent, the right to refuse to purchase and pay for such Securities if,
          at the Settlement Date for such Securities, any condition set forth in
          Section 6 hereof shall not have been satisfied (it being understood
          that the judgment of such person with respect to the impracticability
          or inadvisability of such purchase of Securities shall be substituted,
          for purposes of this Section 5(k), for the judgment of such Agent with
          respect thereto); and

               (l)  To pay or cause to be paid the following:  (i) the fees and
          expenses of the Company's counsel and accountants in connection with
          the registration of the Securities under the Act and all other expen-
          ses in connection with the preparation, printing and filing of the
          Registration Statement, any Preliminary Prospectus, the Prospectus and
          any Pricing Supplements and all other amendments and supplements
          thereto and the mailing and delivering of copies thereof to such
          Agent; (ii) the fees and expenses of counsel for the Agents in
          connection with the establishment of the program contemplated hereby,
          any opinions to be rendered by such counsel hereunder and the
          transactions contemplated hereunder; (iii) the cost of preparing this
          Agreement, any Terms Agreement and any other documents approved by the
          Company in connection with the offering, purchase, sale and delivery
          of the Securities; (iv) the fees, not to exceed $5,000, and expenses
          of counsel for the Agents in connection with the qualification of the
          Securities for offering and sale under state securities laws as
          provided in Section 5(b) hereof and the preparation of any blue sky
          and legal investment memoranda; (v) any fees charged by securities
          rating services for rating the Securities; (vi) any filing fees
          incident to any required review by the National Association of
          Securities Dealers, Inc. of the terms of the sale of the Securities;
          (vii) the cost of preparing the Securities; (viii) the fees and
          expenses of the Trustees and any agent of any Trustee and any transfer
          or paying agent of the Company and the fees and disbursements of
          counsel for any Trustee or any such agent in connection with any
          Indenture and the Securities; (ix) any advertising expenses connected
          with the solicitation of offers to purchase and the sale of Securities
          so long as such advertising expenses have been approved by the
          Company; and (x) all other costs and expenses incident to the
          performance of the Company's obligations hereunder which are not
          otherwise specifically provided for in this Section; provided,
          however, that, except as provided in Sections 8 and 9 hereof, such
          Agent shall pay all other expenses it incurs, including any expenses
          that may be incurred by it or for its account pursuant to the proviso
          of Section 5(c) hereof.

               6.   Conditions to Agents' Obligations.  The obligation of an 
                    ---------------------------------
     Agent, as agent of the Company, at any time (each a "Solicitation Time"),
     to solicit offers to purchase the Securities and the obligation of an Agent
     to purchase Securities as principal, pursuant to a Terms Agreement or
     otherwise, shall be subject, in such Agent's discretion, to the conditions
     that:  (i) all of the representations and warranties of the Company herein
     (and, in the case of an obligation of an Agent under a Terms Agreement or
     other agreement with an Agent to purchase Securities as principal, in or
     incorporated in such agreement by reference) were true and correct (A) on
     the Commencement Date; (B) each time that the Registration Statement or the
     Prospectus shall be amended or supplemented, (C) each time a document
     incorporated by reference in the Prospectus as amended or supplemented
     shall be filed by the Company under the Act or Exchange Act, (D) at the
     date of each acceptance by the Company of an offer to purchase Securities
     procured by such Agent, as agent, and each agreement by the Company,
     pursuant to a Terms Agreement or otherwise, to sell Securities to an Agent,
     as principal, (E) at each Settlement Date, and (F) at each Time of Delivery
     of Securities so to be purchased by such Agent, as principal, as the case
     may be, (ii) prior to such Solicitation Time or such Time of Delivery, as
     the case may be, the Company shall have performed all of its obligations
     hereunder theretofore to be performed, (iii) all requests for additional
     information on the part of the Commission shall have been complied with to
     the reasonable satisfaction of such Agent, (iv) there shall be in full
     force and effect orders of the Public Utility Commission of Oregon and the
     Washington Utilities and Transportation Commission which are acceptable to
     the Agents and which permit the issuance and sale of the Securities
     substantially in accordance with the terms and conditions of this
     Agreement, (v) no stop order suspending the effectiveness of the
     Registration Statement shall have been issued and no proceedings for that
     purpose shall be pending before, or to the knowledge of the Company
     contemplated by, the Commission, and (vi) there shall not have occurred: 
     (A) a suspension or material limitation of trading in securities generally
     on the New York Stock Exchange; (B) a general moratorium on commercial
     banking activities in New York declared by either Federal or New York State
     authorities; (C) an engagement by the United States in hostilities or any
     escalation of hostilities, the effect of which, in the judgment of such
     Agent, makes it impracticable or inadvisable to proceed with the
     solicitation of offers to purchase Securities or the purchase of Securities
     from the Company as principal on the terms and in the manner contemplated
     by this Agreement and, if applicable, any Terms Agreement or other
     agreement; or (D) any downgrading, or any notice shall have been given of
     any intended or potential downgrading, of the Securities by either Moody's
     Investors Service or Standard & Poor's Corporation.  In addition to the
     foregoing, the obligation of an Agent to purchase Securities as principal,
     pursuant to a Terms Agreement or other agreement, shall be subject, in such
     Agent's discretion, to the further condition that there shall not have
     been, since the date of such Terms Agreement or other agreement or since
     the respective dates as of which information is given in the Registration
     Statement, any material adverse change in the condition, financial or
     otherwise, or in the earnings, business affairs or business prospects of
     the Company and its subsidiaries considered as one enterprise, whether or
     not arising in the ordinary course of business.

               7.   Conditions to Company's Obligations.
                    ------------------------------------

               (a)  The obligation of the Company to sell and deliver any
          Security pursuant hereto, to a Terms Agreement or otherwise shall be
          subject to the condition that, after the acceptance by the Company of
          an offer to purchase such Security procured by an Agent, as agent, or
          the agreement by the Company, pursuant to a Terms Agreement or
          otherwise, to sell such Security to an Agent, as principal, and prior
          to the Time of Delivery or the Settlement Date, as the case may be,
          with respect to such purchase or sale, neither the Public Utility
          Commission of Oregon nor the Washington Utilities and Transportation
          Commission shall have issued an order revoking its then existing order
          permitting the issuance and sale of the Securities through each Agent,
          as agent, on the terms set forth herein or to each Agent, as
          principal, pursuant to a Terms Agreement or other agreement.

               (b)  If the condition specified in Section 7(a) hereof shall not
          have been fulfilled, the obligation of the Company to sell Securities
          hereunder or under a Terms Agreement or other agreement may be
          terminated by the Company; and neither the Company nor any Agent shall
          have any liability to the other, except for (i) the obligation of the
          Company to pay certain expenses to the extent provided for in Section
          5(l) hereof, (ii) the obligation of the Company to pay commissions and
          hold the Agents harmless as provided in Section 9 hereof (and, for
          purposes of said Section 9, such a failure of such condition to be
          fulfilled shall be considered a default by the Company on its
          obligation to deliver such Securities), and (iii) any liability under
          Section 8 hereof.

               8.   Indemnification.
                    ---------------

               (a)  The Company will indemnify and hold harmless each Agent
          against any losses, claims, damages or liabilities, joint or several,
          to which such Agent may become subject, under the Act or otherwise,
          insofar as such losses, claims, damages or liabilities or actions in
          respect thereof arise out of or are based upon an untrue statement or
          alleged untrue statement of a material fact contained in the
          Registration Statement, any Preliminary Prospectus, the Prospectus or
          the Prospectus as amended or supplemented, or arise out of or are
          based upon the omission or alleged omission to state therein a
          material fact required to be stated therein or necessary to make the
          statements therein not misleading, and will reimburse such Agent for
          any legal or other expenses reasonably incurred by it, as incurred, in
          connection with investigating or defending any such loss, claim,
          damage, liability or action; provided, however, that the Company shall
                                       --------  -------
          not be liable in any such case to the extent that any such loss,
          claim, damage or liability or action in respect thereof arises out of
          or is based upon an untrue statement or alleged untrue statement or
          omission or alleged omission made in the Registration Statement, any
          Preliminary Prospectus, the Prospectus or the Prospectus as amended or
          supplemented in reliance upon and in conformity with written
          information furnished to the Company by such Agent specifically for
          use therein; and provided, further, that the indemnity agreement
          contained in this Section 8(a) shall not inure to the benefit of any
          Agent on account of any losses, claims, damages or liabilities or
          actions in respect thereof arising solely from the sale of Securities
          by or through such Agent pursuant to a Terms Agreement or otherwise to
          any person if a copy of the Prospectus as then amended and
          supplemented with respect to such Securities shall not have been sent
          or given to such person with or prior to written confirmation of the
          sale involved (assuming that the Company shall have previously
          furnished such documents to such Agent in a timely fashion), and if
          the Prospectus (as so amended or supplemented) would have cured the
          defect giving rise to such losses, claims, damages or liabilities.

               (b)  Each Agent will indemnify and hold harmless the Company
          against any losses, claims, damages or liabilities to which the
          Company may become subject, under the Act or otherwise, insofar as
          such losses, claims, damages or liabilities or actions in respect
          thereof arise out of or are based upon an untrue statement or alleged
          untrue statement of a material fact contained in the Registration
          Statement, any Preliminary Prospectus, the Prospectus or the Pros-
          pectus as amended or supplemented, or arise out of or are based upon
          the omission or alleged omission to state therein a material fact
          required to be stated therein or necessary to make the statements
          therein not misleading, in each case to the extent, but only to the
          extent, that such untrue statement or alleged untrue statement or
          omission or alleged omission was made in the Registration Statement,
          any Preliminary Prospectus, the Prospectus or the Prospectus as
          amended or supplemented in reliance upon and in conformity with
          written information furnished to the Company by such Agent
          specifically for use therein, and will reimburse the Company for any
          legal or other expenses incurred by the Company, as incurred, in
          connection with investigating or defending any such loss, claim,
          damage or liability or action.  Each Agent hereby furnishes to the
          Company in writing expressly for use in the Registration Statement,
          any Preliminary Prospectus, the Prospectus and the Prospectus as
          amended or supplemented (i) the second sentence in the last paragraph
          on the cover page of the Prospectus relating to the offerings of
          Medium-Term Notes by the Agents, as principal, (ii) the legend on the
          inside cover page relating to stabilizing transactions by the Agents,
          and (iii) under "Plan of Distribution," the fourth and seventh
          sentences in the first paragraph, the second and last sentences of the
          fourth paragraph, the seventh paragraph and the eighth paragraph.

               (c)  Promptly after receipt by an indemnified party under Section
          8(a) or Section 8(b) of notice of the commencement of any action, such
          indemnified party shall, if a claim in respect thereof is to be made
          against the indemnifying party under such Section, notify the
          indemnifying party in writing of the commencement thereof; but the
          omission so to notify the indemnifying party shall not relieve it from
          any liability which it may have to any indemnified party otherwise
          than under such Section.  In case any such action shall be brought
          against any indemnified party and it shall notify the indemnifying
          party of the commencement thereof, the indemnifying party shall be
          entitled to participate therein and, to the extent that it shall wish,
          jointly with any other indemnifying party similarly notified, to
          assume the defense thereof, with counsel satisfactory to such indemni-
          fied party (who shall not, except with the consent of the indemnified
          party, be counsel to the indemnifying party); provided, however, in no
                                                        --------  -------
          event shall such indemnifying parties be obligated to retain more than
          one counsel (and necessary local counsel), in addition to counsel for
          such indemnifying parties, to represent the indemnified parties, and
          after notice from the indemnifying party to such indemnified party of
          its election so to assume the defense thereof, the indemnifying party
          shall not be liable to such indemnified party under such Section for
          any legal expenses of other counsel or any other expenses, in each
          case subsequently incurred by such indemnified party, in connection
          with the defense thereof other than reasonable costs of investigation.
          Each indemnified party may also participate at its own expense in the
          defense of any such action.  No indemnifying party shall, without the
          prior written consent of the indemnified party, effect any settlement
          of any pending or threatened proceeding in respect of which any
          indemnified party is or could have been a party and indemnity could
          have been sought hereunder by such indemnified party, unless such
          settlement includes an unconditional release of such indemnified party
          from all liability on claims that are the subject matter of such
          proceeding.

               (d)  If the indemnification provided for in Section 8(a) or
          Section 8(b) hereof is unavailable to or insufficient to hold harmless
          an indemnified party in respect of any losses, claims, damages or
          liabilities (or actions in respect thereof) referred to therein, then
          each indemnifying party shall contribute to the amount paid or payable
          by such indemnified party as a result of such losses, claims, damages
          or liabilities (or actions in respect thereof) in such proportion as
          is appropriate to reflect any relevant equitable considerations
          including the relative fault of the Company on the one hand and each
          Agent on the other in connection with the statements or omissions
          which resulted in such losses, claims, damages or liabilities (or
          actions in respect thereof), and relative benefit of the Company on
          the one hand and each Agent on the other.  Relative fault shall be
          determined by reference to, among other things, whether the untrue or
          alleged untrue statement of a material fact or the omission or alleged
          omission to state a material fact required to be stated therein or
          necessary in order to make the statements therein not misleading
          relates to information supplied by the Company on the one hand or by
          any Agent on the other and the parties' relative intent, knowledge,
          access to information and opportunity to correct or prevent such
          statement or omission.  The relative benefits received by the Company
          on the one hand and each Agent on the other shall be deemed to be in
          the same proportion as the total net proceeds from the sale of
          Securities (before deducting expenses) received by the Company bear to
          the total commissions or discounts received by such Agent in respect
          thereof.  The Company and each Agent agree that it would not be just
          and equitable if contribution pursuant to this Section 8(d) were
          determined (i) with respect only to any losses, claims, damages or
          liabilities referred to in Section 8(a) hereof, by per capita
          allocation (even if all Agents were treated as one entity for such
          purpose) or (ii) by any method of allocation which does not take
          account of the equitable considerations referred to above in this
          Section 8(d).  The amount paid or payable by an indemnified party as a
          result of the losses, claims, damages or liabilities (or actions in
          respect thereof) referred to above in this Section 8(d) shall be
          deemed to include any legal or other expenses reasonably incurred by
          such indemnified party in connection with investigating or defending
          any such action or claim.  No person guilty of fraudulent
          misrepresentation (within the meaning of Section 11(f) of the Act)
          shall be entitled to contribution from any person who was not guilty
          of such fraudulent misrepresentation.  The obligations of each of the
          Agents under this Section 8(d) to contribute are several and are not
          joint.

               (e)  The obligations of the Company under this Section 8 shall be
          in addition to any liability which the Company may otherwise have and
          shall extend, upon the same terms and conditions, to each person, if
          any, who controls any Agent within the meaning of the Act.  The
          obligations of each Agent under this Section 8 shall be in addition to
          any liability which such Agent may otherwise have and shall extend,
          upon the same terms and conditions, to each director of the Company,
          to each officer of the Company who has signed the Registration
          Statement and to each person, if any, who controls the Company within
          the meaning of the Act.

               9.   Nonperformance.  Each Agent, in soliciting offers to
                    --------------
     purchase Securities from the Company and in performing the other
     obligations of such Agent hereunder (other than in respect of any purchase
     by an Agent as principal pursuant to a Terms Agreement or otherwise), is
     acting solely as agent for the Company and not as principal.  Each Agent
     will make reasonable efforts to assist the Company in obtaining performance
     by each purchaser whose offer to purchase Securities from the Company was
     solicited by such Agent and has been accepted by the Company, but such
     Agent shall not have any liability to the Company in the event such
     purchase is not consummated for any reason.  If the Company shall default
     on its obligation to deliver Securities to a purchaser whose offer it has
     accepted, the Company shall (i) hold each Agent harmless against any loss,
     claim or damage arising from or as a result of such default by the Company
     and (ii) notwithstanding such default, pay to the Agent that solicited such
     offer any commission to which it would be entitled in connection with such
     sale.

               10.  Survival of Agreement.  The respective indemnities, 
                    ---------------------
     agreements, representations, warranties and other statements by any Agent
     and the Company set forth in or made pursuant to this Agreement shall
     remain in full force and effect regardless of any investigation (or any
     statement as to the results thereof) made by or on behalf of any Agent or
     any controlling person of any Agent or the Company, or any officer or
     director or any controlling person of the Company, and shall survive each
     delivery of and payment for any of the Securities.

               11.  Suspension or Termination.  The provisions of this Agreement
                    -------------------------
     relating to the solicitation of offers to purchase Securities from the
     Company may be suspended or terminated at any time by the Company as to any
     Agent or by any Agent as to such Agent upon the giving of written notice of
     such suspension or termination to such Agent or the Company, as the case
     may be.  In the event of such suspension or termination with respect to any
     Agent, this Agreement shall remain in full force and effect with respect to
     (i) any Agent as to which such suspension or termination has not occurred,
     (ii) the rights and obligations of any party which have previously accrued
     or which relate to Securities which are already issued, agreed to be issued
     or the subject of a pending offer at the time of such suspension or
     termination, (iii) Sections 2(e), 5(d), 5(e), 5(l), 8, 9 and 10 hereof, and
     (iv) the obligations of the Company to amend or supplement the Prospectus,
     so long as any Agent continues to hold Securities as principal.

               12.  Notices.  Except as otherwise specifically provided herein 
                    -------
     or in the Administrative Procedure, all statements, requests, notices and
     advices hereunder shall be in writing or by telephone, if promptly
     confirmed in writing, and if to Merrill Lynch & Co., Merrill Lynch, Pierce,
     Fenner & Smith Incorporated, shall be sufficient in all respects when
     delivered or sent by facsimile transmission or registered mail to World
     Financial Center, North Tower, New York, New York 10281, Attn: MTN Product
     Management, Facsimile Transmission No. 212-449-2234, Telephone No. 212-449-
     7476 and if to PaineWebber Incorporated, shall be sufficient in all
     respects when delivered or sent by facsimile transmission or registered
     mail to 1285 Avenue of the Americas, 11th Floor, New York, New York 10019,
     Facsimile Transmission No. 212-247-0371, Attn: David G. Zahka; if to the
     Company, shall be sufficient in all respects when delivered or sent by
     facsimile transmission or registered mail to One Pacific Square, 220 N.W.
     Second Avenue, Portland, Oregon 97209, Attention: Chief Financial Officer,
     with a copy to the General Counsel, Facsimile Transmission No. 503-220-
     2584, Telephone No. 503-220-2406; and if to any additional Agent, as set
     forth in the Additional Agent Appointment Agreement relating to such Agent.

               13.  Benefit of Agreement.  This Agreement, any Additional Agent 
                    --------------------
     Appointment Agreement and any Terms Agreement shall be binding upon, and
     inure solely to the benefit of, each Agent a party hereto and thereto and
     the Company, and to the extent provided in Section 8 and Section 10 hereof,
     the officers and directors of the Company and any person who controls any
     Agent or the Company, and their respective personal representatives, suc-
     cessors and assigns, and no other person shall acquire or have any right
     under or by virtue of this Agreement, any Additional Agent Appointment
     Agreement or any Terms Agreement.  No purchaser of any of the Securities
     through or from any Agent hereunder shall be deemed a successor or assign
     by reason of such purchase.

               14.  Timing.  Time shall be of the essence in this Agreement, any
                    ------
     Additional Agent Appointment Agreement and any Terms Agreement.  As used
     herein, the term "business day" shall mean any day when banks in New York
     City are not authorized or obligated by law or executive order to remain
     closed.

               15.  Governing Law.  This Agreement, any Additional Agent 
                    -------------
     Appointment Agreement and any Terms Agreement shall be governed by and
     construed in accordance with the laws of the State of New York.

               16.  Descriptive Headings.  The descriptive headings of the 
                    --------------------
     several paragraphs of this Agreement are inserted for convenience only and
     do not constitute a part of this Agreement.

               17.  Execution in Counterparts.  This Agreement, any Additional 
                    -------------------------
     Agent Appointment Agreement and any Terms Agreement may be executed by any
     one or more of the parties hereto and thereto in any number of counter-
     parts, each of which shall be an original, but all of such respective
     counterparts shall together constitute one and the same instrument.

               If the foregoing is in accordance with your understanding, please
     sign and return to us three counterparts hereof, whereupon this letter and
     the acceptance by each of you hereof shall constitute a binding agreement
     between the Company and each of you in accordance with its terms.

                                   Very truly yours,

                                   NORTHWEST NATURAL GAS COMPANY


                                   By:                              
                                        ----------------------------
                                        Senior Vice President,
                                        Finance, and Chief Financial
                                        Officer


     Accepted in New York, New York,
       as of the date hereof:

     MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED



     By:                           
          -------------------------
          Title:



     PAINEWEBBER INCORPORATED



     By:                               
         ------------------------------
         Title:

     <PAGE>

                                                                  ANNEX I

                             Northwest Natural Gas Company

                               Administrative Procedure
                               ------------------------


               This Administrative Procedure relates to the Securities defined
     in the Distribution Agreement, dated            , 1997 (the "Distribution 
                                          -----------
     Agreement"), amongst Northwest Natural Gas Company (the "Company"), on the
     one hand, and Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
     Incorporated, PaineWebber Incorporated, and each other person which shall
     become a party thereto (each, an "Agent" and, together, the "Agents"), on
     the other.  Defined terms used herein and not defined herein shall have the
     meanings given such terms in the Distribution Agreement or the Indentures. 
     An Agent, in relation to a purchase of a Security by a purchaser solicited
     by such Agent, is referred to herein as the "Selling Agent" and, in
     relation to a purchase of a Security by such Agent as principal other than
     pursuant to a Terms Agreement, as the "Purchasing Agent".  As used herein,
     the term "business day" shall mean any day when banks in New York City are
     not authorized or obligated by law or executive order to remain closed.

               The procedures to be followed with respect to the settlement of
     sales of Securities directly by the Company to purchasers solicited by an
     Agent, as agent, are set forth below.  The terms and settlement details
     related to a purchase of Securities by an Agent, as principal, from the
     Company will be set forth in a Terms Agreement, pursuant to the
     Distribution Agreement, unless the Company and such Agent otherwise shall
     agree.

               The Company will advise each Agent in writing of those persons
     with whom such Agent is to communicate regarding offers to purchase
     Securities and the related settlement details.

               The order dated February 4, 1997 of the Public Utility Commission
     of Oregon (the "OPUC") provides, among other things, that the authority
     contained therein is valid so long as the Company's senior debt securities
     maintain investment grade bond ratings from at least two nationally
     recognized statistical rating organizations.  The order dated January 22,
     1997 of the Washington Utilities and Transportation Commission (the "WUTC")
     confirms that the Company is authorized to issue and sell the Securities. 
     In addition, such order of the OPUC authorizes, and such order of the WUTC
     confirms the authorization of, the issuance and sale by the Company only of
     Securities bearing interest at fixed rates, established within the maximum
     all-in spreads over Benchmark Treasury Yields for various maturities
     (determined in accordance with said orders as of the time the commitment to
     purchase any Securities is received by the Company and the Agent).

               As stated in the Company's Prospectus dated         , 1997, if 
                                                           --------
     the terms of any Security, as determined by the Company, provide that such
     Security will be redeemable at the option of the company, such Security
     will be made redeemable in whole or in part. 

     Procedure for Rate Changes:
     --------------------------

               When a decision has been reached to change the interest rate on
     or other variable terms with respect to any Securities being offered for
     sale, the Company will promptly advise the Agents and the Agents will
     forthwith suspend solicitation of offers to purchase such Securities.  The
     Agent will telephone the Company with recommendations as to the changed
     interest rates or other variable terms.  At such time as the Company
     advises the Agents of the new interest rates or other variable terms, the
     Agent may resume solicitation of offers to purchase such Securities.  Until
     such time only "indications of interest" may be recorded.

     Acceptance or Rejection of Offers by Company:
     --------------------------------------------

               Each Agent will promptly advise the Company by telephone or other
     appropriate means of all reasonable offers to purchase Securities, other
     than those rejected by such Agent.  Each Agent, in its discretion
     reasonably exercised, may reject any offer received by it, in whole or in
     part.  Each Agent also may make offers to the Company to purchase
     Securities as a Purchasing Agent.  The Company, in its sole discretion, may
     accept any offer to purchase Securities and may reject any such offer, in
     whole or in part.

               The Company will promptly notify the Selling Agent or Purchasing
     Agent, as the case may be, of its acceptance or rejection of an offer to
     purchase Securities.  If the Company accepts an offer to purchase
     Securities, it will confirm such acceptance in writing to the Selling Agent
     or Purchasing Agent, as the case may be. 

               The order dated February 4, 1997 of the OPUC requires that, for
     each issuance of Securities, the Company seek and report to the OPUC at
     least one other bid quote in addition to the bid that is accepted.

     Settlement:
     ----------

               The receipt of immediately available funds by the Company in
     payment for a Security and the authentication and delivery of such Security
     will, with respect to such Security, constitute "Settlement."

               All offers solicited by a Selling Agent or made by a Purchasing
     Agent and accepted by the Company will be settled on a date (the
     "Settlement Date") which shall be the third business day after the date of
     acceptance of such offer, unless the Company and the purchaser shall agree
     to settle (a) on any other business day after the acceptance of such offer
     or (b) with respect to an offer accepted by the Company prior to 10:00
     a.m., New York City time, on the date of such acceptance.

     Settlement Procedures:
     ---------------------

          A.   After the acceptance of an offer by the Company, the Selling
     Agent or Purchasing Agent, as the case may be, will communicate the
     following details of the terms of such offer (the "Sale Information") to
     the Company by telephone (confirmed in writing) or by facsimile
     transmission or other acceptable written means:

          (1)  Principal amount of Securities to be purchased;

          (2)  Issue Price ("Issue Price" shall mean (i) in the case of a sale
               in which an Agent shall act as a Selling Agent, the price to the
               purchaser or (ii) in the case of a sale to an Agent as Purchasing
               Agent, that Purchasing Agent's reoffering price);

          (3)  Selling Agent's commission or, if applicable, Purchasing Agent's
               discount (spread between the reoffering price and Purchasing
               Agent's purchase price);

          (4)  Net proceeds to the Company: (2) minus (3);

          (5)  Method of and specified funds for payment of purchase price:

          (6)  (a)  Fixed rate Securities: interest rate;

               (b)  Floating rate Securities:
                      (i)   interest rate basis
                     (ii)   initial interest rate
                    (iii)   spread or spread multiplier, if any
                     (iv)   interest rate reset dates
                      (v)   interest rate reset period
                     (vi)   interest payment dates
                    (vii)   initial interest payment date
                   (viii)   interest payment period
                     (ix)   regular record dates
                      (x)   index maturity
                     (xi)   calculation agent
                    (xii)   maximum and minimum interest rates, if any
                   (xiii)   calculation date
                    (xiv)   interest determination dates;

          (7)  (a)  Trade Date;

               (b)  Interest Commencement Date (Settlement Date unless otherwise
                    noted; "Issue Date" on Secured Notes);

                    Time of delivery;

          (8)  Closing location;

          (9)  Maturity date;

          (10) If redeemable at the Company's option:

               (a)  initial redemption date;

               (b)  redemption limitation date;

               (c)  each redemption price and period;

          (11) Sinking fund or other retirement provisions; 

          (12) The name of the Selling Agent or Purchasing Agent, as the case
               may be;

          (13) Exact name, address and taxpayer identification number of party
               to be the registered owner; 

          (14) Party to whom Securities are to be delivered; 

          (15) Denominations of certificates to be delivered at settlement; 

          (16) The name of the Company's bank and the account number for payment
               of the purchase price; 

          (17) Whether the Securities to be purchased are Secured Notes or
               Unsecured Notes; 

          (18) Any other significant terms of the Securities or their offer or
               sale. 

          B.   After receiving such settlement information from the Agent, the
     Company will advise the Trustee of the above settlement information.  The
     Company will prepare a Pricing Supplement to the Prospectus and deliver
     copies to the Agent and will cause the Trustee to issue, authenticate and
     deliver Securities. 

               If an identical Pricing Supplement has not been Previously filed
     with the Securities and Exchange Commission (the "SEC"), the Company will
     arrange to have transmitted promptly via EDGAR one copy of the Pricing
     Supplement (with the appropriate paragraph under Rule 424(b) and the
     Registration No. inscribed in the upper right corner) to the SEC, within
     the applicable time period provided in Rule 424(b).

     One copy of the Pricing Supplement (with a copy of the cover letter sent to
     the SEC if a filing with the SEC is required) will be sent by facsimile to
     the Agents as soon as practicable but in no event later than 12:00 noon on
     the day after the Trade Date at each of the following numbers:

               Merrill Lynch & Co. - Tritech Services
               40 Colonial Drive
               Piscataway, NJ 08854
               Attn: Final Prospectus Unit/Nachman Kimerling
               Facsimile No. (908) 885-2774/2775/2776;
               Phone No. (908) 865-2768

     and

               Merrill Lynch & Co.
               Merrill Lynch, Pierce, Fenner & Smith
               Incorporated
               Merrill Lynch World Headquarters
               World Financial Center, North Tower
               10th Floor
               New York, NY 10281-1310
               Attn: MTN Product Management
               Facsimile No. (212) 449-2234; Phone No. (212) 449-7476
     and
               PaineWebber Incorporated
               1285 Avenue of the Americas
               11th Floor
               New York, NY 10019
               Attn: Corporate Bond Department
               Facsimile No. (212) 247-0371; Phone No. (212) 713-2960

               The Company shall supply the Agents as soon as practicable but in
     no event later than the Settlement Date with an adequate supply of
     Prospectuses and Pricing Supplements at the above addresses.

               In addition, the Company will make any required filings with the
     OPUC and WUTC in respect of the Securities that are issued.


     Suspension of Solicitation; Amendment or Settlement:
     ---------------------------------------------------

               Subject to its representations, warranties and covenants
     contained in the Distribution Agreement, the Company may instruct the
     Agents to suspend solicitation of purchases at any time.  Upon receipt of
     such instructions, the Agents will forthwith suspend solicitation of offers
     to purchase from the Company until such time as the Company has advised
     them that solicitation of offers to purchase may be resumed.  If the
     Company decides to amend or supplement the Prospectus (other than to change
     interest rates or other variable terms with respect to the offering of the
     Securities), it will promptly advise the Agents and will furnish the Agents
     and their counsel with copies of the proposed amendment or supplement.

               In the event that at the time the solicitation of offers to
     purchase from the Company is suspended (other than to change interest rates
     or other variable terms) there shall be any orders outstanding which have
     not been settled, the Company will promptly advise the Agents and the
     Trustee whether such orders may be settled and whether copies of the
     Prospectus as theretofore amended and/or supplemented as in effect at the
     time of the suspension may be delivered in connection with the settlement
     of such orders.  The Company will have the sole responsibility for such
     decision and for any arrangements which may be made in the event that the
     Company determines that such orders may not be settled or that copies of
     such Prospectus may not be so delivered.

     Delivery of Confirmation and Prospectus to Purchaser by Selling
     ---------------------------------------------------------------
     Agent:
     -----

               The Selling Agent will deliver to the purchaser of a Security a
     written confirmation of the sale and delivery and Payment instructions.  In
     addition, the Selling Agent will deliver to such purchaser or its agent the
     Prospectus as amended or supplemented (including the Pricing Supplement)
     relating to such Security prior to delivery to such purchaser or its agent
     of, or together with, the earlier to be delivered of (a) the confirmation
     of sale or (b) the Security.

     Instruction from Company to Trustee for Preparation of Securities:
     -----------------------------------------------------------------

               After receiving the Sale Information from the Selling Agent or
     Purchasing Agent, as the case may be, the Company will communicate such
     Sale Information to the Mortgage Trustee or the Indenture Trustee, as the
     case may be, by telephone (confirmed in writing, by facsimile transmission
     or by other acceptable written means).

               The Company will instruct such Trustee by telephone (confirmed in
     writing, by facsimile transmission or by other acceptable written means) to
     authenticate and deliver the Securities no later than 2:15 p.m., New York
     City time, on the Settlement Date.  Such instruction will be given by the
     Company prior to 3:00 p.m., New York City time, on the business day prior
     to the Settlement Date, unless the Settlement Date is the date of
     acceptance by the Company of the offer to purchase Securities, in which
     case such instruction will be given by the Company to the Trustee by 10:00
     a.m., New York City time, on the Settlement Date.

     Procedures for Book-Entry Securities:
     ------------------------------------

               In connection with Securities issued in book-entry form and
     maintained in the book-entry system of The Depository Trust Company
     ("DTC"), (i) the Company and the Trustee shall act in accordance with the
     letters of representation (relating to the Secured Notes and the Unsecured
     Notes, respectively) from the Company and the Trustee to DTC, as the same
     may be amended, supplemented or otherwise modified from time to time, and
     (ii) the Trustee shall act in accordance with one or more Medium-Term Note
     Certificate Agreements, relating to the Securities, between the Trustee and
     DTC, as the same may be amended, supplemented or otherwise modified from
     time to time, and in accordance with its obligations as a participant in
     DTC.

               The beneficial owner of a Security issued in book-entry form (or
     one or more indirect participants in DTC designated by such owner) will
     designate one or more participants in DTC (with respect to such Security
     issued in book-entry form, the "Participants") to act as agent for such
     beneficial owner in connection with the book-entry system maintained by
     DTC, and DTC will record in book-entry form, in accordance with
     instructions provided by such Participants, a credit balance with respect
     to such Security issued in book-entry form in the account of such
     Participants.  The ownership interest of such beneficial owner in such
     Security issued in book-entry form will be recorded through the records of
     such Participants or through the separate records of such Participants and
     one or more indirect participants in DTC.

               Transfers of a Book-Entry Security will be accomplished by book
     entries made by DTC and, in turn, by Participants (and in certain cases,
     one or more indirect participants in DTC) acting on behalf of beneficial
     transferors and transferees of such Book-Entry Security.

               Beneficial interests in the Securities may be purchased, owned
     and transferred only in denominations of $1,000 or any integral multiple of
     $1,000.

     Preparation and Delivery of Securities by Trustee and Receipt of Payment
     ------------------------------------------------------------------------
     Therefor:
     --------

                               Certificated Securities
                               -----------------------

               The Company will instruct the Mortgage Trustee or the Indenture
     Trustee, as the case may be, to:

            (i)     Prepare each Security and appropriate receipts that will
                    serve as the documentary control of the transaction.

           (ii)     In the case of a sale of Securities to a purchaser solicited
                    by a Selling Agent, by 2:15 p.m., New York City time, on the
                    Settlement Date, deliver the Securities to such Selling
                    Agent, at the address listed below, for the benefit of the
                    purchaser of such Securities against delivery by such
                    Selling Agent of a receipt therefor.  (On the Settlement
                    Date, such Selling Agent will deliver payment for such
                    Securities in immediately available funds to the Company's
                    account at a bank designated by the Company and included as
                    a part of the Sale Information provided by the Selling Agent
                    in an amount equal to the net proceeds to the Company;
                    provided that the Selling Agent reserves the right to
                    withhold payment for which it shall not have received funds
                    from the purchaser.)

          (iii)     In the case of a sale of Securities to a Purchasing Agent,
                    by 2:15 p.m., New York City time, on the Settlement Date,
                    deliver the Securities to such Purchasing Agent, at the
                    address listed below, against delivery of payment therefor.
                    (On the Settlement Date, such Purchasing Agent will deliver
                    payment for such Securities in immediately available funds
                    to the Company's account at a bank designated by the Company
                    and included as a part of the Sale Information provided by
                    the Purchasing Agent in an amount equal to the net proceeds
                    to the Company.) 

           (iv)     Complete the 4-ply Security and deliver three copies thereof
                    as follows: 

                    1.   Security with Agent's customer confirmation.

                    2.   Copy 1 - for Trustee.

                    3.   Copy 2 - for Agent.

                    4.   Copy 3 - for Company.

            (v)     With respect to each sale, deliver the Securities and Copies
                    1 and 2 thereof to the appropriate Agent at the following
                    address: 

                    Merrill Lynch & Co.
                    Merrill Lynch, Pierce, Fenner & Smith
                      Incorporated
                    55 Water Street
                    Third Floor Level, N.S.C.C. Window
                    New York, New York  10041
                    Attn:  Al Mitchell

                    or

                    PaineWebber Incorporated,
                    1285 Avenue of the Americas
                    11th Floor
                    New York, New York 10019
                    Attn: Corporate Bond Department

                    as the case may be, or to any other Agent as directed by
                    such Agent. (The Agent will acknowledge receipt of the
                    Security, will keep Copy 2 and will return Copy 1 to the
                    Trustee. Delivery of the Security by the Trustee will be
                    made only against such acknowledgment of receipt. Prior to
                    the first settlement date, the Trustee or the Company shall
                    have sent a letter to Merrill Lynch Clearance Operations,
                    PaineWebber Incorporated or any other Agent, as the case may
                    be, containing standard wire instructions for the net
                    proceeds of each Security, addressed as follows:  

                    Merrill Lynch, Pierce, Fenner & Smith Incorporated
                    World Financial Center 
                    North Tower
                    New York, New York 10281

                    or

                    PaineWebber Incorporated
                    1285 Avenue of the Americas
                    11th Floor
                    New York, New York 10019
                    Attn: Corporate Bond Department

                    as the case may be, or as directed by such other Agent.)

               (vi) Send Copy 3 to the Company.


                                Book-Entry Securities
                                ---------------------

          A.   The Company will assign a CUSIP number to the Book-Entry Security
     representing such Security and then advise the Trustee by electronic
     transmission of the Sale Information received from the Agent, such CUSIP
     number and the name of such Agent.

          B.   The Trustee will communicate to DTC and the Agent through DTC's
     Participant Terminal System, a pending deposit message specifying the
     following settlement information:

          (1)  The following Sale Information with respect to each Security:

            (a)     Taxpayer identification number of the purchaser.

            (b)     Principal amount of the Security.

            (c)     Interest rate.

            (d)     Floating Rate Securities:

                 (i)   interest rate basis;
                (ii)   initial interest rate;
               (iii)   spread or spread multiplier, if any;
                (iv)   interest rate reset dates;
                 (v)   interest rate reset period;
                (vi)   interest payment dates;
               (vii)   interest payment period;
              (viii)   regular record dates;
                (ix)   index maturity;
                 (x)   calculation agent;
                (xi)   maximum and minimum interest rates, if any;
               (xii)   calculation date; and
              (xiii)   interest determination dates.
          
            (e)     Issue price.

            (f)     Trade date.

            (g)     Interest Commencement Date, which shall be the Settlement
                    Date unless otherwise noted ("Issue Date" on Secured Notes).

            (h)     Maturity date.

            (i)     Net proceeds to the Company.

            (j)     Agent's commission.

            (k)     Redemption provisions, if any.

          (2)  Identification numbers of the participant accounts maintained by
               DTC on behalf of the Trustee and the Agent. 
          (3)  Identification as a Fixed Rate Book-Entry Security or Floating
               Rate Book-Entry Security.

          (4)  Initial Interest Payment Date for such Security, number of days
               by which such date succeeds the related record date for DTC
               purposes (or, in the case of Floating Rate Securities which reset
               daily or weekly, the date five calendar days preceding the
               Interest Payment Date) and, if then calculable, the amount of
               interest payable on such Interest Payment Date (which amount
               shall have been confirmed by the Trustee).

          (5)  CUSIP number of the Book-Entry Security representing such
               Security.

          (6)  Whether such Book-Entry Security represents any other  Securities
               issued or to be issued in book-entry form.

          C.   The Company will complete and deliver to the Trustee a Book-Entry
     Security representing such Security in a form that has been approved by the
     Company, the Agents and the Trustee. 

          D.   The Trustee will authenticate the Book-Entry Security
     representing such Security.

          E.   DTC will credit such Security to the participant account of the
     Trustee maintained by DTC.

          F.   The Trustee will enter a Same-Day Funds Settlement System
     ("SDFS") deliver order through DTC's Participant Terminal System
     instructing DTC (i) to debit such Security to the Trustee's participant
     account and credit such Security to the participant account, maintained by
     DTC, of the Agent which presented to the Company the offer to purchase such
     Security which was accepted by the Company (the "Presenting Agent") and
     (ii) to debit the settlement account of the Presenting Agent and credit the
     settlement account of the Trustee maintained by DTC, in an amount equal to
     the price of such Security less such Agent's commission.

          G.   The Presenting Agent will enter an SDFS deliver order through
     DTC's Participant Terminal System instructing DTC (i) to debit such
     Security to the Presenting Agent's participant account and credit such
     Security to the participant account of the Participants maintained by DTC
     and (ii) to debit the settlement accounts of such Participants and credit
     the settlement account of the Presenting Agent maintained by DTC, in an
     amount equal to the initial public offering price of such Security.

          H.   Transfer of funds in accordance with SDFS deliver orders
     described in Settlement Procedures F and G will be settled in accordance
     with SDFS operating procedures in effect on the Settlement Date.

          I.   The Trustee will credit to an account of the Company maintained
     at the Trustee funds available for immediate use in the amount transferred
     to the Trustee in accordance with Settlement Procedure F.

          J.   The Trustee will send a copy of the Book-Entry Security by first
     class mail to the Company together with a statement setting forth the
     principal amount of Securities Outstanding as of the related Settlement
     Date after giving effect to such transaction and all other offers to
     purchase Securities of which the Company has advised the Trustee but which
     have not yet been settled.

          K.   The Agent will confirm the purchase of such Security to the
     purchaser either by transmitting to the Participant with respect to such
     Security a confirmation order through DTC's Participant Terminal System or
     by mailing a written confirmation to such purchaser.

          L.   Settlement Procedures Timetable:

               (1)  For orders of Securities accepted by the Company, Settlement
                    Procedures A through K shall be completed as soon as
                    possible but not later than the respective times (New York
                    City time) set forth below:

                    Settlement
                    Procedure                     Time
                    ---------                     ----

                       A           11:00 a.m. on the trade date
                       B           2:00 p.m. on the trade date
                       C           3:00 p.m. on the Business
                                   Day before Settlement Date
                       D           9:00 a.m. on Settlement Date
                       E           10:00 a.m. on Settlement Date
                       F-G         No later than 2:00 p.m. on
                                   Settlement Date
                       H           4:45 p.m. on Settlement Date
                       I-K         5:00 p.m. on Settlement Date

          (2)  If a sale is to be settled more than one Business Day after sale
               date, Settlement Procedures A and B may, if necessary, be
               completed at any time prior to the specified times on the first
               Business Day after such sale date.  In connection with a sale
               which is to be settled more than one Business Day after the trade
               date, if the initial interest rate for a Floating Rate Security
               is not known at the time that the Sale Information is given by
               the Presenting Agent to the Company, Settlement Procedures A and
               B shall be completed as soon as such rates have been determined,
               but no later than 11:00 a.m. and 2:00 p.m., New York City time,
               respectively, on the second Business Day before the Settlement
               Date.   Settlement Procedure H is subject to extension in
               accordance with any extension of Fedwire closing deadlines and in
               the other events specified in the SDFS operating procedures in
               effect on the Settlement Date.

          (3)  If settlement of a Security issued in book-entry form is
               rescheduled or canceled, the Trustee will deliver to DTC, through
               DTC's Participant Terminal System, a cancellation message to such
               effect by no later than 2:00 p.m., New York City time, on the
               Business Day immediately preceding the scheduled Settlement Date.

     Failure of Purchaser to Pay Selling Agent:
     -----------------------------------------

                               Certificated Securities
                               -----------------------

               If a purchaser shall fail to make payment to the Selling Agent
     for any Security, the net proceeds to the Company which, theretofore, shall
     have been paid by the Selling Agent to the Company, the Selling Agent will
     promptly notify the Mortgage Trustee or the Indenture Trustee, as the case
     may be, and the Company of such failure by telephone, promptly confirmed in
     writing or by facsimile transmission or by other acceptable written means. 
     The Selling Agent promptly will return such Security to such Trustee. 
     Promptly upon receipt of such Security by such Trustee, the Company will
     return to the Selling Agent an amount equal to the amount previously paid
     to the Company in respect of such Security.  Such Trustee will cancel any
     Security in respect of which such a failure shall occur, make appropriate
     entries in its records and, unless otherwise instructed by the Company,
     destroy such Security.

                                Book-Entry Securities
                                ---------------------

               If the Trustee fails to enter an SDFS deliver order with respect
     to a Book-Entry Security issued in book-entry form pursuant to paragraph F
     above, the Trustee may deliver to DTC, through DTC's Participant Terminal 
     System, as soon as practicable a withdrawal message instructing DTC to
     debit such Security to the participant account of the Trustee maintained at
     DTC. DTC will process the withdrawal message, provided that such
     participant account contains a principal amount of the Book-Entry Security
     representing such Security that is at least equal to the principal amount
     to be debited.  If withdrawal messages are processed with respect to all
     the Securities represented by a Book-Entry Security, the Trustee will mark
     such Book-Entry Security "canceled", make appropriate entries in its
     records and send such canceled Book-Entry Security to the Company.  The
     CUSIP number assigned to such Book-Entry Security shall, in accordance with
     CUSIP Service Bureau procedures, be canceled and not immediately
     reassigned.  If withdrawal messages are processed with respect to a portion
     of the Securities represented by a Book-Entry Security, the Trustee will
     exchange such Book-Entry Security for two Book-Entry Securities, one of
     which shall represent the Book-Entry Securities for which withdrawal
     messages are processed and shall be canceled immediately after issuance,
     and the other of which shall represent the other Securities previously
     represented by the surrendered Book-Entry Security and shall bear the 
     CUSIP number of the surrendered Book-Entry Security.

               If the purchase price for any Book-Entry Security is not timely
     paid to the Participants with respect to such Security by the beneficial
     purchaser thereof (or a person, including an indirect participant in DTC
     acting on behalf of such purchaser), such Participants and, in turn, the
     related Agent may enter SDFS deliver orders through DTC's Participant
     Terminal System reversing the orders entered pursuant to paragraphs F and G
     above, respectively. Thereafter, the Trustee will deliver the withdrawal
     message and take the related actions described in the preceding paragraph. 
     If such failure shall have occurred for any reason other than default by
     the applicable Agent to perform its obligations hereunder or under the
     Distribution Agreement, the Company will reimburse such Agent on an
     equitable basis for its loss of the use of funds during the period when the
     funds were credited to the account of the Company.

               Notwithstanding the foregoing, upon any failure to settle with
     respect to a Book-Entry Security, DTC may take any actions in accordance
     with its SDFS operating procedures then in effect.  In the event of a
     failure to settle with respect to a Security that was to have been
     represented by a Book-Entry Security also representing other Securities,
     the Trustee will provide, in accordance with paragraphs C and D above, for
     the authentication and issuance of a Book-Entry Security representing such
     remaining Securities and will make appropriate entries in its records.

     <PAGE>

     ANNEX II
                            Northwest Natural Gas Company

                                  Medium-Term Notes

                                   Terms Agreement
                                   ---------------

     [Merrill Lynch & Co.
     Merrill Lynch, Pierce, Fenner & Smith
       Incorporated
     World Financial Center
     North Tower
     New York, New York  10281]

     [PaineWebber Incorporated
     1285 Avenue of the Americas
     New York, New York  10019]

     [Name of additional Agents, if any]

     Dear Sirs:

               Subject to the terms and conditions set forth herein and, to the
     extent provided below, in the Distribution Agreement, dated          , 1997
                                                                 ---------
     (the "Distribution Agreement"), amongst Northwest Natural Gas Company (the
     "Company"), on the one hand, and Merrill Lynch & Co., Merrill Lynch,
     Pierce, Fenner & Smith Incorporated, PaineWebber Incorporated and each
     other person which shall become a party to the Distribution Agreement (each
     an "Agent" and, together, the "Agents"), on the other, the Company proposes
     to issue and sell to [Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner &
     Smith Incorporated] [PaineWebber Incorporated] [Name of other Agent] the
     Securities (as defined in the Distribution Agreement) specified in the
     Schedule hereto (the "Purchased Securities"), at the time, place and
     purchase price and upon the terms and conditions set forth in such
     Schedule.  Each of the provisions of the Distribution Agreement not
     specifically related to the solicitation by the Agents, as agents of the
     Company, of offers to purchase Securities is incorporated herein by
     reference, and shall be deemed to be part of this Terms Agreement to the
     same extent as if such provisions had been set forth herein.

               Each of the representations and warranties set forth in the
     Distribution Agreement shall be deemed to have been made by the Company at
     and as of the date of this Terms Agreement, except that each such
     representation and warranty which makes reference to the Prospectus shall
     be deemed to be a representation and warranty as of the date of the
     Distribution Agreement in relation to the Prospectus (as therein defined),
     and also a representation and warranty as of the date of this Terms
     Agreement in relation to the Prospectus as amended and supplemented with
     respect to the Purchased Securities.

               A supplement to the Prospectus relating to the Purchased
     Securities, in the form heretofore delivered to and approved by you, is now
     proposed to be filed with the Commission in accordance with Rule 424(b)
     under the Act. 

               Subject to the terms and conditions set forth herein and to those
     of the Distribution Agreement incorporated herein by reference, the Company
     agrees to issue and sell to [Merrill Lynch & Co., Merrill Lynch, Pierce,
     Fenner & Smith Incorporated] [PaineWebber Incorporated] [Name of other
     Agent] and [Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
     Incorporated] [PaineWebber Incorporated] [Name of other Agent] agrees to
     purchase from the Company the Purchased Securities, at the time and place,
     in the principal amount and at the purchase price set forth in the Schedule
     hereto.

               If the foregoing is in accordance with your understanding, please
     sign and return to us three counterparts hereof, whereupon this letter,
     including those provisions of the Distribution Agreement incorporated
     herein by reference, shall constitute a binding agreement between you and
     the Company.

                               NORTHWEST NATURAL GAS COMPANY


                               By:
                                  -----------------------------------
                               Title:

     Accepted in New York, New York,
       as of the date hereof:


     [MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED


     By:
        ------------------------------------------
     Title:                                  ]


     [PAINEWEBBER INCORPORATED


     By:
        ------------------------------------------
     Title:                                  ]

     [Name of other Agent, if any]

     <PAGE>
                                                  Schedule to Annex II


     Title of Purchased Securities:
     -----------------------------

     Aggregate Principal Amount:  $
     --------------------------

     Price to Public:
     ---------------

     Purchase Price by [Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & 
     -----------------
     Smith Incorporated] [PaineWebber Incorporated] [Name of other Agent]:
                % of the principal amount of the Purchased Securities [, plus
     accrued interest from        to        ] [and accrued amortization of
     discount from        to       ]

     Method of and Specified Funds for Payment of Purchase Price:
     -----------------------------------------------------------

               [By certified or official bank check or checks, payable to the
     order of the Company, in [[New York Clearing House] [immediately available]
     funds]

               [By wire transfer to a bank account specified by the Company in
     [next day] [immediately available] funds]

     Indenture:   [Mortgage] [Note Indenture]
     ---------

     Interest Commencement Date which shall be the Settlement Date unless 
     --------------------------------------------------------------------
     otherwise noted ("Issue Date" on Secured Notes): 
     -----------------------------------------------

     Time of Delivery: 
     ----------------

     Closing Location: 
     ----------------

     Stated Maturity Date:
     --------------------

     Interest Rate or Rates (or Method of Determining Interest):
     ----------------------------------------------------------

     Interest Payment Dates: [months and dates]
     ----------------------

     Initial Interest Payment Date:
     -----------------------------

     Regular Record Dates:
     --------------------

     Redeemable at Company's Option:  Yes ___    No ___
     ------------------------------
          In Whole:  Yes    No
                        ---   ---
          In Part:   Yes    No
                        ---   ---

     Initial Redemption Date:
     -----------------------

     Redemption Limitation Date:
     --------------------------

     Initial Redemption Price:
     ------------------------

     Reduction Percentage:
     --------------------

     Sinking Fund or Other Retirement Provisions, if any:
     ---------------------------------------------------

     Documents to be Delivered as a Condition to the Closing:
     -------------------------------------------------------

          [(1) The opinion of counsel to the Agents referred to in Section 4(a)]

          [(2) The opinion of counsel to the Company referred to in Section
               4(b)]

          [(3) The opinion of counsel to the Company referred to in Section
               4(c)]

          [(4) The accountants letter referred to in Section 4(d)]

          [(5) The officers certificate referred to in Section 4(e)]

     Other Provisions (including Syndicate Provisions,
     -------------------------------------------------
     if applicable):
     --------------

     <PAGE>
                                                                ANNEX III


                                                                  , 1997
                                                       -----------


     Merrill Lynch & Co.
     Merrill Lynch, Pierce, Fenner
        & Smith Incorporated
     World Financial Center
     North Tower
     New York, New York  10281

     PaineWebber Incorporated
     1285 Avenue of the Americas
     New York, New York  10019

     Dear Sirs:

               With reference to the issuance and sale from time-to-time by
     Northwest Natural Gas Company (the "Company"), pursuant to the Distribution
     Agreement, dated             , 1997 (the "Agreement"), between the Company 
                      ------------
     and each of you, of not to exceed $165,000,000 in aggregate principal
     amount of (i) the Company's First Mortgage Bonds, designated Secured
     Medium-Term Notes, Series B (the "Secured Notes") to be issued under the
     Company's Mortgage and Deed of Trust, dated as of July 1, 1946, to Bankers
     Trust Company (the "Corporate Trustee") and R.G. Page (Stanley Burg,
     successor), as trustees, as supplemented by twenty supplemental indentures
     (such Mortgage and Deed of Trust, as so supplemented, being hereinafter
     called the "Mortgage"), and (ii) the Company's Unsecured Medium-Term Notes,
     Series B  (the "Unsecured Notes"), to be issued under the Company's
     Indenture, dated as of June 1, 1991 (the "Indenture"), to Bankers Trust
     Company, as trustee (the "Indenture Trustee") (the Secured Notes and the
     Unsecured Notes being hereinafter collectively referred to as the "Notes"),
     and the appointment of each of you as agents of the Company pursuant to the
     Agreement for the purposes  of soliciting and receiving offers to purchase
     Notes, as agents, and purchasing Notes, as principals, from the Company,
     please be advised that, as General Counsel of the Company, I have
     participated in the preparation of or reviewed (a) the Restated Articles of
     Incorporation, as amended, and Bylaws, as amended, of the Company; (b) the
     Mortgage; (c) the Indenture; (d) the Agreement; (e) the registration
     statement (File No. 33-64014) (the "Initial Registration Statement"), filed
     by the Company with the Securities and Exchange Commission (the "SEC") for
     the registration under the Securities Act of 1933, as amended (the "1933
     Act"), of $150,000,000 of the Notes, of which $15,000,000 remain unsold,
     and for the qualification under the Trust Indenture Act of 1939, as amended
     (the "Trust Indenture Act"), of the Mortgage and the Indenture, which
     Initial Registration Statement became effective on June 17, 1993; (f) the
     registration statement (File No. 333-15323) (the "Subsequent Registration
     Statement"), filed by the Company with the SEC for the registration under
     the 1933 Act of an additional $150,000,000 of the Notes, and for the
     qualification under the Trust Indenture Act of the Mortgage and the
     Indenture, which Subsequent Registration Statement became effective on 
                , 1997; (g) the combined prospectus relating to the Notes 
     ----------
     constituting a part of the Subsequent Registration Statement in the form in
     which it became effective, or if amended or supplemented subsequent to such
     effectiveness, as so amended and supplemented, including the documents
     incorporated therein by reference pursuant to Item 12 of Form S-3 (the
     "Prospectus"); (h) the proceedings before the Public Utility Commission of
     Oregon (the "OPUC") and the Washington Utilities and Transportation
     Commission (the "WUTC") relating to the issuance and sale of the Notes; and
     (i) the records of various corporate and other proceedings relating to the
     authorization, issuance and sale of the Notes.  I have also examined such
     other documents and satisfied myself as to such other matters as I have
     deemed necessary in order to render this opinion.  I have not examined the
     Notes, except specimens thereof.

               In preparation of this opinion, I have examined originals or
     photostatic certified copies of such certificates, agreements, documents
     and other papers, and have made such inquiries and investigations of law,
     as I deemed appropriate and necessary for the opinion hereinafter set
     forth.  In my examination, I have assumed the authenticity of all documents
     submitted to me as certified or photostatic copies and the authenticity of
     the originals of such latter documents.  As to certain matters of fact
     material to the opinion expressed herein, I have relied upon certificates
     of various corporate officers of the Company and public officials. I assume
     the accuracy of the material and  factual matters contained therein.

               I am of the opinion that:

               1.   The Company is a validly organized and existing corporation
          in good standing under the laws of the State of Oregon, is qualified
          to do business and is in good standing in the State of Washington, and
          has power (corporate and other) to own its properties and conduct its
          business as described in  the Prospectus.

               2.   The Company holds valid and subsisting franchises, licenses,
          permits and consents, free from burdensome restrictions and adequate
          for the conduct of its business, as and to the extent set forth in the
          Prospectus.

               3.   The Agreement has been duly and validly authorized, executed
          and delivered by the Company.

               4.   The Mortgage and the Indenture have been duly and validly
          authorized by all necessary corporate action, have been duly and
          validly executed and delivered, and are valid and binding instruments
          enforceable in accordance with their terms, subject, as to
          enforcement, to laws and principles of equity relating to or affecting
          generally the enforcement of creditors rights, including, without
          limitation, bankruptcy and insolvency.

               5.   The Company has good and sufficient title to all the
          properties described in, and as subject to the lien of, the Mortgage
          and now owned by it, subject only to excepted encumbrances as defined
          in the Mortgage and to minor defects and irregularities customarily
          found in properties of like size and character, which, in my opinion,
          do not materially impair the use of the property affected thereby in
          the operation of the business of the Company; the description in the
          Mortgage of such properties is adequate to constitute the Mortgage a
          lien thereon; and the Mortgage constitutes a valid, direct first
          mortgage lien on such properties, which include substantially all of
          the permanent physical properties and franchises of the Company (other
          than those expressly excepted), subject only to the exceptions
          enumerated above in this paragraph.

               6.   The form of the Secured Notes has been duly authorized and
          has been established in conformity with the provisions of the
          Mortgage; the form of the Unsecured Notes bearing interest at a fixed
          rate, has been duly authorized and has been established in conformity
          with the provisions of the Indenture; and the form of the Unsecured
          Notes, bearing interest at a variable rate or not bearing interest,
          when set forth in a Company Order or Orders or established by
          procedures acceptable to the Indenture Trustee specified in a Company
          Order or Orders, will have been duly authorized and will have been
          established in conformity with the provisions of the Indenture.

               7.   The Secured Notes have been duly authorized by the
          resolutions adopted by the Board of Directors on May 27, 1993,
          September 26, 1996 and April 24, 1997 (the "Board Resolutions"), and
          when the terms of the Secured Notes shall have been determined as
          contemplated by and in accordance with the Mortgage, the Board
          Resolutions and written orders or instructions evidencing
          determinations by Officers of the Company, such terms will have been
          duly authorized by the Company and will have been established in
          conformity with the terms of the Mortgage.

               8.   The Unsecured Notes have been duly authorized by the Board
          Resolutions, and when the terms of the Unsecured Notes shall have been
          determined as contemplated by and in accordance with the Indenture,
          the Board Resolutions and, to the extent required by the Indenture and
          the Board Resolutions, by Officers' Certificates, Company Orders
          (each, as defined in the Indenture) and procedures acceptable to the
          Indenture Trustee specified in such Company Orders, such terms will
          have been duly authorized by the Company and will have been
          established in conformity with the terms of the Indenture.

               9.   The Notes, when (a) executed by the Company, (b) completed,
          authenticated and delivered by the Corporate Trustee or the Indenture
          Trustee, as the case may be, (c) issued and delivered by the Company
          and (d) paid for, all as contemplated by and in accordance with the
          Mortgage, in the case of Secured Notes, the Indenture, in the case of
          Unsecured Notes, the Board Resolutions, and (to the extent required by
          the Mortgage or the Indenture and the Board Resolutions) Officers'
          Certificates, Company Orders, procedures acceptable to the Indenture
          Trustee specified in such Company Orders, written orders or
          instructions evidencing determinations by the officers of the Company,
          the Agreement, the Administrative Procedure (as defined in the
          Agreement), and Terms Agreements (as defined in the Agreement), if
          any, will be duly issued under the Mortgage or the Indenture, as the
          case may be, and will constitute valid and legally binding obligations
          of the Company, entitled to the benefits provided by the Mortgage or
          the Indenture, as the case may be, and enforceable in accordance with
          their terms, subject, as to enforcement, to laws and principles of
          equity relating to or affecting generally the enforcement of
          creditors' rights, including, without limitation, bankruptcy and
          insolvency, and, in the case of the Secured Notes, entitled to the
          benefit of the security afforded by the Mortgage.

               10.  The issuance and sale of the Notes, the compliance by the
          Company with all of the provisions of the Notes, the Mortgage, the
          Indenture and the Agreement and the consummation of the transactions
          contemplated by the Agreement will not result in a breach or violation
          of any of the terms and provisions of, or constitute a default under,
          any statute, any indenture, mortgage, deed of trust or other agreement
          or instrument known to me to which the Company is a party or by which
          it is bound or to which any of the property of the Company is subject,
          the Company's Restated Articles of Incorporation, as amended, or
          Bylaws, as amended, or any order, rule or regulation known to me of
          any court or  governmental agency or body having jurisdiction over the
          Company or any of its properties.

               11.  The OPUC and the WUTC have issued orders authorizing the
          issuance and sale by the Company of the Notes; and no further
          approval, authorization, consent or other order of any public board or
          body (other than in connection or in compliance with the provisions of
          the securities or blue sky laws of any jurisdiction) is legally
          required for the issuance and sale of the Notes through each of you,
          as agent, on the terms and conditions set forth in the Agreement.

               12.  The statements of Oregon, Washington and Federal law (other
          than the 1933 Act, the Securities Exchange Act of 1934 and the Trust
          Indenture Act), and legal conclusions based thereon, contained in, or
          in the documents incorporated by reference in, the Prospectus have
          been reviewed by me and are correct (except to the extent that any
          statement contained in a document incorporated or deemed to be
          incorporated by reference in the Prospectus may be deemed to be
          modified or superseded in the Prospectus or in any other subsequently
          filed document which also is or is deemed to be incorporated by
          reference in the Prospectus).

               13.  Except as described in the Prospectus, there are no pending
          material legal or governmental proceedings and, to my knowledge, no
          material threatened legal or governmental proceedings, to which the
          Company is a party or of which any of the property of the Company is
          subject, other than ordinary routine litigation incidental to the kind
          of business conducted by the Company.

               In the course of the preparation by the Company of the Initial
     and the Subsequent Registration Statements and the Prospectus, I had
     conferences with certain officers and employees of the Company, but I have
     made no independent verification of the accuracy or completeness of the
     representations and statements made to me by such person or the information
     included by the Company in either of such Registration Statements and the
     Prospectus, and take no responsibility therefor, except as forth in
     paragraph 12 hereof.  However, my examination of such Registration
     Statements and the Prospectus and my discussions in the above-mentioned
     conferences did not disclose to me any information which gives me reason to
     believe that, when each of the Initial and Subsequent Registration
     Statements became effective, it contained an untrue statement of a material
     fact or omitted to state a material fact required to be stated therein or
     necessary to make the statements therein not misleading, or that, as of the
     date of this opinion, the Prospectus includes an untrue statement of a
     material fact or omits to state a material fact necessary in order to make
     the statements therein, in the light of the circumstances under which they
     were made, not misleading; provided, that I do not express any belief as to
     the financial statements or other financial or statistical data contained
     in such Registration Statements or the Prospectus, or as to the Forms T-1
     or T-2, or as to any information contained therein furnished to the Company
     in writing by any of you expressly for use therein.

               This opinion is limited to the facts and law at the date hereof.
     In rendering the opinions set forth in paragraphs 9, 10 and 11 above, I
     have necessarily assumed that, at the time of any issuance, sale and
     delivery of a Note (i) the Board of Directors of the Company (or any
     committee thereof acting pursuant to authority properly delegated to such
     committee by the Board of Directors) has not taken any action to rescind or
     otherwise reduce its prior authorization of the issuance of the Notes and
     an officer of the Company, as stated in the resolutions of the Board of
     Directors (or any such committee) relating to the Notes, has executed and
     delivered such Notes, (ii) the orders of the OPUC and the WUTC with respect
     to the Notes remain in full force and effect and have not been modified or
     amended by the OPUC or the WUTC, respectively, and the Company complies
     with the terms of such orders and (iii) the orders of the SEC with respect
     to the Initial Registration Statement, the Subsequent Registration
     Statement, the Mortgage and the Indenture remain in full force and effect
     and have not been modified or amended by the SEC.

               I am a member of the bar of the States of Oregon and Washington
     and do not hold myself out as an expert on the laws of the State of New
     York or Federal securities laws. Accordingly, in rendering this opinion, I
     have relied, with your consent, as to all matters governed by the laws of
     the State of New York, the 1933 Act, the Securities Exchange Act of 1934
     and the Trust Indenture Act, upon the opinion of even date herewith
     addressed to you by Reid & Priest LLP, New York, New York, counsel for the
     Company.  I have read such opinion and concur in the conclusions expressed
     therein insofar as such conclusions involve questions of Oregon and
     Washington law.

               You, the Trustees and, as to matters governed by the laws of the
     State of Oregon and the State of Washington, Reid & Priest LLP and your
     counsel may rely upon this opinion in connection with the issuance and sale
     of the Notes. Neither you nor any of them may rely upon this opinion for
     any other purpose, and no other person may rely upon this opinion for any
     purpose without, in each case, my prior written consent.

                                        Very truly yours,



                                        Bruce B. Samson, Esq.

     <PAGE>

                                                          A N N E X   I V






                                                                  , 1997
                                                       -----------


     Merrill Lynch & Co.
     Merrill Lynch, Pierce, Fenner
        & Smith Incorporated
     World Financial Center
     North Tower
     New York, New York 10281

     PaineWebber Incorporated
     1285 Avenue of the Americas
     New York, New York  10019

     Dear Sirs:

               With reference to the issuance and sale from time-to-time by
     Northwest Natural Gas Company (the "Company"), pursuant to the Distribution
     Agreement, dated             , 1997 (the "Agreement"), between the Company 
                      ------------
     and each of you, of not to exceed $165,000,000 in aggregate principal
     amount of (i) the Company's First Mortgage Bonds, designated Secured
     Medium-Term Notes, Series B (the "Secured Notes"), to be issued under the
     Company's Mortgage and Deed of Trust, dated as of July 1, 1946, to Bankers
     Trust Company (the "Corporate Trustee") and R.G. Page (Stanley Burg,
     successor), as trustees, as supplemented by twenty supplemental indentures
     (such Mortgage and Deed of Trust, as so supplemented, being hereinafter
     called the "Mortgage"), and (ii) the Company's Unsecured Medium-Term Notes,
     Series B (the "Unsecured Notes"), to be issued under the Company's
     Indenture, dated as of June 1, 1991 (the "Indenture"), to Bankers Trust
     Company, as trustee (the "Indenture Trustee") (the Secured Notes and the
     Unsecured Notes being hereinafter collectively referred to as the "Notes"),
     and the appointment of each of you as agents of the Company pursuant to the
     Agreement for the purposes of  soliciting and receiving offers to purchase
     Notes, as agents, and purchasing Notes, as principals, from the Company,
     please be advised that, as counsel to the Company, we have participated in
     the preparation of or reviewed (a) the Restated Articles of Incorporation,
     as amended, and Bylaws, as amended, of the Company; (b) the Mortgage; (c)
     the Indenture; (d) the Agreement; (e) the registration statement (File No.
     33-64014) (the "Initial Registration Statement"), filed by the Company with
     the Securities and Exchange Commission (the "SEC") for the registration
     under the Securities Act of 1933, as amended (the "1933 Act"), of
     $150,000,000 of the Notes, of which $15,000,000 remain unsold, and for the
     qualification under the Trust Indenture Act of 1939, as amended (the "Trust
     Indenture Act"), of the Mortgage and the Indenture, which Initial
     Registration Statement became effective on June 17, 1993; (f) the
     registration statement (File No. 333-15323) (the "Subsequent Registration
     Statement"), filed by the Company with the SEC for the registration under
     the 1933 Act of an additional $150,000,000 of the Notes, and for the
     qualification under the Trust Indenture Act of the Mortgage and the
     Indenture, which Subsequent Registration Statement became effective on 
                , 1997; (g) the combined prospectus relating to the Notes 
     -----------
     constituting a part of the Subsequent Registration Statement in the form in
     which it became effective, or if amended or supplemented subsequent to such
     effectiveness, as so amended or supplemented, including the documents
     incorporated therein by reference pursuant to Item 12 of Form S-3 (the
     "Prospectus"); (h) the records of the proceedings before the Public Utility
     Commission of Oregon (the "OPUC") and the Washington Utilities and
     Transportation Commission (the "WUTC") relating to the issuance and sale of
     the Notes; and (i) the records of various corporate and other proceedings
     relating to the authorization, issuance and sale of the Notes.  We have
     also examined such other documents and satisfied ourselves as to such other
     matters as we have deemed necessary in order to render this opinion.  We
     have not examined the Notes, except specimens thereof.  

               In the preparation of this opinion, we have examined originals or
     photostatic or certified copies of such certificates, agreements, documents
     and other papers, and have made such inquiries and investigations of law,
     as we deemed appropriate and necessary for the opinion hereinafter set
     forth.  In our examination, we have assumed the authenticity of all
     documents submitted to us as originals, the conformity to original
     documents of all documents submitted to us as certified or photostatic
     copies and the authenticity of the originals of such latter documents.  As
     to certain matters of fact material to the opinion expressed herein, we
     have relied upon certificates of various corporate officers of the Company
     and public officials.  We assume the accuracy of the material and factual
     matters contained therein. 

               We are of the opinion that: 

               1.   The Company is a validly organized and existing corporation
     in good standing under the laws of the State Of Oregon, and is qualified to
     do business and is in good standing in the State of Washington. 

               2.   The Agreement has been duly and validly authorized, executed
     and delivered by the Company. 

               3.   The Mortgage and the Indenture have been duly and validly
     authorized by all necessary corporate action, have been duly and validly
     executed and delivered, have been duly qualified under the Trust Indenture
     Act, and are valid and binding instruments enforceable in accordance with
     their terms, subject, as to enforcement, to laws and principles of equity
     relating to or affecting generally the enforcement of creditors' rights,
     including, without limitation, bankruptcy and insolvency.

               4.   The form of the Secured Notes has been duly authorized and
     has been established in conformity with the provisions of the Mortgage and
     conforms to the description thereof contained in the Prospectus; the form
     of the Unsecured Notes, bearing interest at a fixed rate, has been duly
     authorized and has been established in conformity with the provisions of
     the Indenture and conforms to the description thereof contained in the
     Prospectus; and the form of the Unsecured Notes, bearing interest at a
     variable rate or not bearing interest, when set forth in a Company Order or
     Orders or established by procedures acceptable to the Indenture Trustee
     specified in a Company Order or Orders, will have been duly authorized and
     will have been established in conformity with the provisions of the
     Indenture.

               5.   The Secured Notes have been duly authorized by the
     resolutions adopted by the Board of Directors on May 27, 1993, September
     26, 1996 and April 24, 1997 (the "Board Resolutions"), and when the terms
     of the Secured Notes shall have been determined as contemplated by and in
     accordance with the Mortgage, the Board Resolutions and written orders or
     instructions evidencing determinations by Officers of the Company, such
     terms will have been duly authorized by the Company and will have been
     established in conformity with the terms of the Mortgage.

               6.   The Unsecured Notes have been duly authorized by the Board
     Resolutions, and when the terms of the Unsecured Notes shall have been
     determined as contemplated by and in accordance with the Indenture, the
     Board Resolutions and, to the extent required by the Indenture and the
     Board Resolutions, by Officers' Certificates, Company Orders (each, as
     defined in the Indenture) and procedures acceptable to the Indenture
     Trustee specified in such Company Orders, such terms will have been duly
     authorized by the Company and will have been established in conformity with
     the terms of the Indenture. 

               7.   The Notes, when (a) executed by the Company, (b) completed,
     authenticated and delivered by the Corporate Trustee or the Indenture
     Trustee, as the case may be, (c) issued and delivered by the Company and
     (d) paid for, all as contemplated by and in accordance with the Mortgage,
     in the case of the Secured Notes, the Indenture, in the case of Unsecured
     Notes, the Board Resolutions, and (to the extent required by the Mortgage
     or the Indenture and the Board Resolutions) Officers' Certificates, Company
     Orders, procedures acceptable to the Indenture Trustee specified in such
     Company Orders, written orders or instructions evidencing determinations by
     the officers of the Company, the Agreement, the Administrative Procedure
     (as defined in the Agreement) and Terms Agreements (as defined in the
     Agreement), if any, will be duly issued under the Mortgage or the
     Indenture, as the case may be, and will constitute valid and legally
     binding obligations of the Company, entitled to the benefits provided by
     the Mortgage or the Indenture, as the case may be, and enforceable in
     accordance with their terms, subject, as to enforcement, to laws and
     principles of equity relating to or affecting generally the enforcement of
     creditors' rights, including, without limitation, bankruptcy and
     insolvency, and, in the case of the Secured Notes, entitled to the benefit
     of the security afforded by the Mortgage.

               8.   The issuance and sale of the Notes, the compliance by the
     Company with all of the provisions of the Notes, the Mortgage, the
     Indenture and the Agreement and the consummation of the transactions
     contemplated by the Agreement will not result in a breach or violation of
     any of the terms and provisions of,  or constitute a default under, the
     Mortgage and the Indenture or the Company's Restated Articles of
     Incorporation, as amended, or Bylaws, as amended.

               9.   The OPUC and the WUTC have issued orders authorizing the
     issuance and sale by the Company of the Notes; and no further approval,
     authorization, consent or other order of any public board or body (other
     than in connection or in compliance with the provisions of the securities
     or blue sky laws of any jurisdiction) is legally required for the issuance
     and sale of the Notes through each of you, as agent, on the terms and
     conditions set forth in the Agreement. 

               10.  Both the Initial and Subsequent Registration Statements have
     become effective under the Act, and, to the best of our knowledge, no stop
     order suspending the effectiveness thereof has been issued and no
     proceedings for that purpose are pending before or have been proposed by
     the SEC; the Mortgage and the Indenture have been duly qualified under the
     Trust Indenture Act; each of the Initial and Subsequent Registration
     Statements at the time it became effective complied, and the Prospectus
     (excluding the documents incorporated therein by reference) as of the date
     of this opinion complies, as to form, in all material respects with the
     requirements of the Act, the Trust Indenture Act (except with respect to
     the Forms T-1 and Form T-2, upon which we do not pass) and the rules and
     regulations of the SEC thereunder; and the documents incorporated by refer-
     ence in the Prospectus pursuant to Item 12 of Form S-3 (other than the
     financial statements and other financial or statistical data contained
     therein, upon which we express no opinion), as of their respective dates of
     filing, complied as to form in all material respects with the requirements
     of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
     and the rules and regulations of the SEC thereunder.

               In the course of the preparation by the Company of the Initial
     and the Subsequent Registration Statements and the Prospectus, we had
     conferences with certain officers and employees of the Company, with the
     General Counsel for the Company and with you and your counsel, but we made
     no independent verification of the accuracy or completeness of the
     representations and statements made to us by such persons or the
     information included by the Company in either of such Registration
     Statements and the Prospectus and take no responsibility therefor, except
     insofar as set forth in paragraph 4 hereof.  In passing upon the forms of
     such Registration Statements and the Prospectus we have, therefore, assumed
     the accuracy and completeness of such representations, statements and
     information, except as aforesaid.  However, our examination of such
     Registration Statements and the Prospectus and our discussions in the
     above-mentioned conferences did not disclose to us any information which
     gives us reason to believe that, when each of the Initial and the
     Subsequent Registration Statements became effective, it contained an untrue
     statement of a material fact or omitted to state a material fact required
     to be stated therein or necessary to make the statements therein not
     misleading, or that, as of the date of this opinion, the Prospectus
     includes an untrue statement of a material fact or omits to state a
     material fact necessary in order to make the statements therein, in the
     light of the circumstances under which they were made, not misleading;
     provided, that we do not express any belief as to the financial statements
     or other financial or statistical data contained in such Registration
     Statements or the Prospectus, or as to the Forms T-1 or T-2, or as to any
     information contained therein furnished to the Company in writing by any of
     you expressly for use therein.

               This opinion is limited to the facts and law at the date hereof. 
     In rendering the opinions set forth in paragraphs 7 and 9 above, we have
     necessarily assumed that, at the time of any issuance, sale and delivery of
     a Note (i) the Board of Directors of the Company (or any committee thereof
     acting pursuant to authority properly delegated to such committee by the
     Board of Directors) has not taken any action to rescind or otherwise reduce
     its prior authorization of the issuance of the Notes and an officer of the
     Company, as stated in the resolutions of the Board of Directors (or any
     such committee) relating to the Notes, has executed and delivered such
     Notes, (ii) the orders of the OPUC and the WUTC with respect to the Notes
     remain in full force and effect and have not been modified or amended by
     the OPUC or the WUTC, respectively, and the Company complies with the terms
     of such orders and (iii) the orders of the SEC with respect to the Initial
     Registration Statement, the Subsequent Registration Statement, the Mortgage
     and the Indenture remain in full force and effect and have not been
     modified or amended by the SEC.

               We are members of the bar of the State of New York and do not
     hold ourselves out as experts on the laws of the State of Oregon or the
     State of Washington. Accordingly, in rendering this opinion, we have
     relied, with your consent, as to all matters governed by the laws of the
     State of Oregon and the State of Washington (including titles to property
     and franchises and the lien of the Mortgage, upon which we do not pass),
     upon the opinion of even date herewith addressed to you by Bruce B. Samson,
     Esq., General Counsel of the Company.  We have read such opinion, which is
     in form satisfactory to us, and concur in the conclusions expressed therein
     insofar as such conclusions involve questions of the laws of the State of
     New York, the 1933 Act, the Exchange Act and the Trust Indenture Act.

               You, the Trustees, and as to matters governed by the laws of the
     State of New York and the 1933 Act, the Exchange Act and the Trust
     Indenture Act, Bruce B. Samson, Esq., may rely upon this opinion in
     connection with the issuance and sale of the Notes.  Neither you nor any of
     them may rely upon this opinion for any other purpose, and no other person
     may rely upon this opinion for any purpose without, in each case, our prior
     written consent.

                                        Very truly yours,



                                        REID & PRIEST LLP

     <PAGE>

                                                                       ANNEX V


                [Contents of Letter of Independent Public Accountants]


               The letter of each independent public accountant will state in
     effect that, for the periods during which such firm was the independent
     public accountant for the Company: 

               1.   They are independent public accountants with respect to the
     Company within the meaning of the Act and the applicable published Rules
     and Regulations; 

               2.   In their opinion, the financial statements examined by them
     and incorporated by reference in the Registration Statement comply as to
     form in all material respects with the applicable accounting requirements
     of the Exchange Act and the published rules and regulations thereunder; 

               3.   On the basis of limited procedures, not constituting an
     examination made in accordance with generally accepted auditing standards,
     including a reading of the latest available interim financial statements of
     the Company, if any, a reading of the minute books of the Company since
     December 31, 19__, inquiries of officials of the Company responsible for
     financial and accounting matters and such other inquiries and procedures as
     may be specified in such letter, nothing came to their attention that
     caused them to believe that: 

                    (a)(1)  the latest interim consolidated financial statements
          included or incorporated by reference in the Registration Statement do
          not comply as to form in all material respects with the applicable
          accounting requirements of the Exchange Act and the published rules
          and regulations thereunder as they apply to Form 10-Q or (2) said
          interim consolidated financial statements are not in conformity with
          generally accepted accounting principles applied on a basis
          substantially consistent with that of the audited consolidated
          financial statements incorporated by reference in the Registration
          Statement; 

                    (b)  at the date of the latest available interim balance
          sheet of the Company and at a subsequent specified date not more than
          five days prior to the Time of Delivery, there has been any change in
          the capital stock (except for (I) shares of the Company's Common Stock
          issued under the Company's Dividend Reinvestment Plan, 1985 Stock
          Option Plan or Employee Stock Purchase Plan, (II) shares of Common
          Stock issued upon the conversion of shares of the Company's
          Convertible Debentures, and (III) shares of Preferred Stock purchased
          or redeemed pursuant to or in anticipation of sinking and purchase
          funds with respect to the Company's Preferred Stock) or any increase
          in the long-term debt of the Company, or any decrease in net assets,
          in each case as compared with amounts shown in the balance sheet as of
          the date of the latest financial statements incorporated by reference
          in the Registration Statement, except in each case for changes,
          increases or decreases which the Registration Statement discloses have
          occurred or may occur, which were occasioned by the declaration of
          dividends or which are described in such letter; or 

                    (c)  for the 12-month period for which the latest unaudited
          financial statements are available, there were any decreases, as
          compared with the latest 12-month period for which financial
          statements are incorporated by reference in the Prospectus, in
          operating revenues, net income and earnings available for common
          stock, except in each case for decreases which the Registration
          Statement discloses have occurred or may occur, which were occasioned
          by the declaration of dividends or which are described in such letter;
          and

               4.   They have performed certain other specified procedures with
     respect to certain amounts and percentages set forth in the Registration
     Statement or in the documents incorporated by reference therein, as have
     been requested by your counsel and approved by the Company, and have found
     them to be in agreement with the records of the Company and the
     computations to be arithmetically correct.


     <PAGE>

                                                                EXHIBIT 1

                            NORTHWEST NATURAL GAS COMPANY

                                     $165,000,000

                             MEDIUM-TERM NOTES, SERIES B

                                                                          , 199 
                                                                  --------     -



     Merrill Lynch & Co.
     Merrill Lynch, Pierce, Fenner & Smith
          Incorporated
     World Financial Center
     North Tower
     New York, New York  10281

     PaineWebber Incorporated
     1285 Avenue of the Americas
     New York, New York  10019


     [Insert Names of Additional Existing Agents, if any]

     [Insert Name of New Agent]

     Dear Sirs:

          Reference is hereby made to the Distribution Agreement, dated        ,
                                                                        -------
     1997 (the "Distribution Agreement"), a copy of which has previously been
     delivered to you, between Northwest Natural Gas Company, an Oregon
     corporation (the "Company"), and each of Merrill Lynch, Pierce, Fenner &
     Smith Incorporated, PaineWebber Incorporated and [Insert Names of
     Additional Existing Agents, if any], with respect to the issue and sale by
     the Company of its First Mortgage Bonds, designated Secured Medium-Term
     Notes, Series B, and its Unsecured Medium-term Notes, Series B
     (collectively, the "Securities").  Capitalized terms used herein without
     definition shall have the meanings assigned to them in the Distribution
     Agreement.

          Subject to the terms and conditions set forth in the Distribution
     Agreement, the Company hereby appoints [Insert Name of New Agent] as agent
     of the Company for the purpose of soliciting and receiving offers to
     purchase the Securities.  In connection with such appointment, [Insert Name
     of New Agent] is hereby entitled to the benefits and subject to the duties
     of an Agent under the terms and conditions of the Distribution Agreement
     (including the Administrative Procedures) and by its execution hereof is
     hereby made a party to the Distribution Agreement.  In connection with such
     appointment, [Insert Name of New Agent] shall receive as of the date
     hereof:  [To be agreed upon by the Company and the New Agent] 

          Any communication under the Distribution Agreement will be made in
     accordance with Section 12 of the Distribution Agreement, and if to [Insert
     Name of New Agent] shall be sufficient in all respects when delivered or
     sent by facsimile transmission or registered mail to  [Insert Address of
     New Agent], attention: [Insert Name], facsimile transmission number [Insert
     New Agent Number].

          This Agreement may be executed in any number of counterparts, each of
     which when so executed shall be deemed to be an original and all of which
     taken together shall constitute one and the same agreement.

          If the foregoing correctly sets forth our agreement, please indicate
     your acceptance hereof in the space provided for that purpose below.

                            Very truly yours,

                            Northwest Natural Gas Company

                            By:                            
                               ----------------------------

                            Title:  Senior Vice President, Finance
                                  and Chief Financial Officer 
                                  



     The foregoing Agreement is hereby
     confirmed and accepted as of the
     date hereof.


     [INSERT NAME OF NEW AGENT]

     By:                         
         ------------------------
       Title:                    
              -------------------



                                                           Exhibit 4(d)


                                OFFICERS' CERTIFICATE

            SUPPLEMENTAL TO THE OFFICERS' CERTIFICATE DATED JUNE 18, 1993
                    (UNDER SECTIONS 201 AND 301 OF THE INDENTURE 
                  REFERRED HEREIN OF NORTHWEST NATURAL GAS COMPANY)

                    Pursuant to Sections 201 and 301 of the Indenture,
          dated as of June 1, 1991 (the "Indenture"), from Northwest
          Natural Gas Company (the "Company") to Bankers Trust Company, as
          trustee (the "Trustee"), and pursuant to the resolutions of the
          Company's Board of Directors, dated May 27, 1993 (the "Board
          Resolution"), we, Bruce R. DeBolt and C. J. Rue, the Senior Vice
          President and Secretary, respectively, of the Company do hereby
          certify that:

                    1.   The terms of the Company's Unsecured Medium-Term
          Notes, Series B (the "Notes") have been established pursuant to
          Sections 201 and 301 of the Indenture in the Officers'
          Certificate dated June 18, 1993, unless otherwise provided in
          subsequent Officers' Certificates;

                    2.   The Notes shall, in the case of Notes bearing
          interest at a fixed rate, be in substantially the form set forth
          in Exhibit 1 hereto; and

                    3.   Pursuant to the Board Resolution, the following
          additional terms are hereby added for the benefit of the Holders
          of the Notes:

                         If the Company shall make any deposit of money
               and/or Government Obligations with respect to the Notes, or
               any portion of the principal amount thereof, prior to the
               Maturity or redemption of such Notes or such portion of the
               principal amount thereof, for the satisfaction or discharge
               of the indebtedness of the Company in respect to such Notes
               or such portion thereof as contemplated by Section 701 of
               the Indenture, the Company shall deliver to the Trustee
               either:

                         (A) an instrument wherein the Company,
               notwithstanding such satisfaction and discharge, shall
               assume the obligation (which shall be absolute and
               unconditional) to irrevocably deposit with the Trustee such
               additional sums of money, if any, or additional Government
               Obligations (meeting requirements of Section 701 of the
               Indenture), if any, or any combination thereof, at such time
               or times, as shall be necessary, together with the money
               and/or Government Obligations theretofore so deposited, to
               pay when due the principal of and premium, if any, and
               interest due and to become due on such Notes or such
               portions thereof, all in accordance with and subject to the
               provisions of said Section 701; provided, however, that such
               instrument may state that the obligation of the Company to
               make additional deposits as aforesaid shall be subject to
               the delivery to the Company by the Trustee of a notice
               asserting the amount of such deficiency accompanied by an
               opinion of an independent public accountant of nationally
               recognized standing, selected by the Trustee, showing the
               calculation thereof; or

                         (B) an Opinion of Counsel to the effect that the
               Holders of such Notes, or such portions of the principal
               amount thereof, will not recognize income, gain or loss for
               United States federal income tax purposes as a result of
               such satisfaction and discharge and will be subject to
               United States federal income tax on the same amounts, at the
               same times and in the same manner as if such satisfaction
               and discharge had not been effected.


               IN WITNESS WHEREOF, we have hereunto signed our names this
          ___ day of ____, 1997.

                                                                            
                                             ____________________________
                                                 Senior Vice President

                                             ____________________________
                                                       Secretary
    <PAGE>  

                                                      Exhibit 1 to
                                                      Officers' Certificate


          Unless   this  certificate   is   presented   by  an   authorized
          representative  of  The  Depository  Trust Company,  a  New  York
          corporation ("DTC"), to Issuer or its agent for registration of  
          transfer, exchange, or payment, and  any certificate issued  is 
          registered in the  name of Cede & Co.  or  in  such  other  name  
          as  requested  by  an  authorized representative  of DTC (and any 
          payment is  made to Cede & Co. or to  such   other  entity  as   
          is  requested  by   an  authorized representative of DTC), ANY 
          TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE  
          BY OR TO ANY PERSON IS  WRONGFUL inasmuch as  the  registered 
          owner  hereof, Cede  &  Co., has  an interest herein.

          Registered No.                        Registered Principal Amount
                                                $





                            NORTHWEST NATURAL GAS COMPANY
                         UNSECURED MEDIUM-TERM NOTE, SERIES B

               CUSIP:                             Redeemable:  Yes   No
                                                                  --   --

               Interest Commencement Date:        In Whole:  Yes   No
                                                                --   --

               Interest Rate:                     In Part:   Yes   No  
                                                                --   --

               Stated Maturity Date:              Initial Redemption Date:

               Other Provisions:                  Redemption Limitation Date:

                                                  Initial Redemption Price:

                                                  Reduction Percentage:

                    NORTHWEST  NATURAL  GAS  COMPANY,  a  corporation  duly
          organized  and existing  under the  laws of  the State  of Oregon
          (herein called  the "Company", which term  includes any successor
          corporation  under  the  Indenture  referred to  on  the  reverse
          hereof), for value  received, hereby  promises to pay  to CEDE  &
          Co., or registered assigns,  the principal amount specified above
          on  the Stated Maturity Date specified above, and to pay interest
          thereon from  the Interest  Commencement Date specified  above or
          from  the most recent Interest Payment Date to which interest has
          been  paid or duly provided for, semi-annually in arrears on June
          1 and December 1 in each year,  commencing (except as provided in
          the following sentence) with the Interest Payment Date next  suc-
          ceeding the  Interest Commencement  Date specified above,  at the
          Interest  Rate per  annum  specified above,  until the  principal
          hereof shall have  been paid or duly provided for.   The interest
          so  payable, and  punctually paid  or duly  provided for,  on any
          Interest  Payment Date, as  provided in such  Indenture, shall be
          paid to  the Person in whose  name this Security (or  one or more
          Predecessor Securities)  shall have been registered  at the close
          of  business  on the  Regular Record  Date  with respect  to such
          Interest Payment Date, which  shall be the May 15 or  November 15
          (whether  or not  a  Business Day),  as  the  case may  be,  next
          preceding such Interest Payment Date; provided, however, that, if
          the  Interest Commencement Date of this Security shall be after a
          Regular Record Date and before the corresponding Interest Payment
          Date, payment of  interest shall commence on the  second Interest
          Payment Date succeeding such Interest Commencement Date and shall
          be paid to the Person in whose name this Security  was registered
          on the Regular Record Date for such second Interest Payment Date;
          and  provided,  further,  that  interest payable  on  the  Stated
          Maturity Date specified above shall be paid to the Person to whom
          principal shall be  paid.   Any such interest  not so  punctually
          paid or duly provided for shall forthwith cease to  be payable to
          the  Holder on  such Regular  Record  Date and  shall be  paid as
          provided in said Indenture.

          <PAGE>

                                       -2-

                    Payment of the  principal of, and premium,  if any, and
          interest on, this Security shall be made at  the office or agency
          of  the Company  maintained for  such purpose  in the  Borough of
          Manhattan,  The City  of  New York,  New  York, in  such  coin or
          currency  of the  United States  of  America as  at  the time  of
          payment shall be legal  tender for payment of public  and private
          debts; provided,  however, 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 such address shall appear  in the
          Security   Register;  and  provided   further,  that  payment  of
          principal, and  premium,  if any,  and interest,  payable on  the
          Stated Maturity  Date specified above or upon  redemption, at the
          request of the  Holder, will be made at said  office or agency in
          immediately available funds upon presentation of this Security.

                    This  Security is  one  of a  duly authorized  issue of
          securities  of  the  Company  (herein  called the  "Securities"),
          issued and issuable  in one  or more series  under an  Indenture,
          dated  as of June 1, 1991 (such Indenture, as originally executed
          and  delivered  and  as   thereafter  supplemented  and  amended,
          together  with any constituent instruments establishing the terms
          of particular Securities,  being herein called the  "Indenture"),
          from the  Company to  Bankers Trust  Company, as  trustee (herein
          called the  "Trustee", which term includes  any successor trustee
          under the Indenture), to which Indenture reference is hereby made
          for  a statement of the respective rights, limitations of rights,
          duties and immunities  thereunder of the Company, the Trustee and
          the Holders  of the Securities  and of  the terms upon  which the
          Securities have  been, and will be,  authenticated and delivered.
          The acceptance of this Security shall be deemed to constitute the
          consent and  agreement by the Holder  hereof to all  of the terms
          and provisions of  the Indenture.   This Security  is one of  the
          series designated on the face hereof.

                    If any  Interest Payment  Date, any Redemption  Date or
          the  Stated Maturity Date shall not be a Business Day, payment of
          the amounts due on this Security on such date may be made on  the
          next  succeeding Business Day;  and no  interest shall  accrue on
          such  amounts for the period from and after such Interest Payment
          Date, Redemption Date or Stated Maturity Date, as the case may be.

                    If  so specified  above,  this Security  is subject  to
          redemption  at any time on  or after the  Initial Redemption Date
          specified above,  as a whole or, if so specified, in part, at the
          election  of the Company, at  the applicable redemption price (as
          described in the following sentence) plus accrued interest to the
          date  fixed for redemption.   Such redemption price  shall be the
          Initial  Redemption  Price specified  above for  the twelve-month
          period  commencing  on  the  Initial Redemption  Date  and  shall
          decline  for   the   twelve-month  period   commencing  on   each
          anniversary of the  Initial Redemption  Date by  a percentage  of
          principal  amount equal  to  the Reduction  Percentage  specified
          above until such redemption price is 100% of the principal amount
          of this Security to be redeemed.

                    Notwithstanding the  foregoing,  the Company  may  not,
          prior to the Redemption Limitation Date, if any, specified above,
          redeem  this Security as contemplated  above as a  part of, or in
          anticipation  of, any  refunding  operation by  the  application,
          directly or  indirectly, of  moneys borrowed having  an effective
          interest  cost  to the  Company  (calculated  in accordance  with
          generally accepted financial practice) of less than the effective
          interest  cost  to the  Company  (similarly  calculated) of  this
          Security.

                    Notice of redemption shall be given by mail to  Holders
          of Securities, not less than 30  days nor more than 90 days prior
          to  the date  fixed  for  redemption,  all  as  provided  in  the
          Indenture.  As provided in the Indenture, notice of redemption as
          aforesaid  may state  that such  redemption shall  be conditional
          upon the  receipt by the Trustee  of money sufficient to  pay the
          Redemption Price of, and  interest, if any, on, this  Security on
          or prior  to the  date fixed  for such redemption.   A  notice of
          redemption so conditioned shall be of no force or effect if  such
          money is not so received;  and, in such event, the  Company shall
          not be required to redeem this Security.

                    The Company shall not  be required to (a)  register the
          transfer of  or exchange Securities  of this  series and  Tranche
          during a period of 15 days immediately preceding the selection of

          <PAGE>

                                       -3-

          Securities of this series and Tranche to be called for redemption
          or (b)  issue, register the  transfer of  to  exchange any
          Security so selected for redemption, in whole or in part, except
          the unredeemed portion of any Security being redeemed in part.

                    In the  event of  redemption of  this Security  in part
          only, a new Security or Securities  of this series and Tranche of
          authorized  denominations,  of   like  tenor  and  in   aggregate
          principal amount equal  to the unredeemed portion hereof  will be
          issued in  the name of  the Holder hereof  upon the surrender  of
          this Security.

                    The Indenture contains provisions for defeasance at any
          time of  the entire indebtedness of this Security upon compliance
          with certain conditions set forth in the Indenture.

                    If an  Event of Default  with respect to  Securities of
          this series shall occur  and be continuing, the principal  of the
          Securities of this series may be declared due  and payable in the
          manner and with the effect provided in the Indenture.

                    The  Indenture  permits,  with  certain  exceptions  as
          therein  provided,   the  Trustee  to  enter  into  one  or  more
          supplemental indentures for the  purpose of adding any provisions
          to,  or  changing  in  any  manner  or  eliminating  any  of  the
          provisions of, the Indenture  with the consent of the  Holders of
          not less than  a majority  in aggregate principal  amount of  the
          Securities of  all series  then Outstanding under  the Indenture,
          considered as one  class; provided, however, that  if there shall
          be Securities  of  more than  one  series Outstanding  under  the
          Indenture and if a proposed supplemental indenture shall directly
          affect  the rights of the  Holders of Securities  of one or more,
          but less than all, of  such series, then the consent only  of the
          Holders  of  a  majority in  aggregate  principal  amount of  the
          Outstanding  Securities  of  all  series  so  directly  affected,
          considered  as  one  class,  shall  be  required;  and  provided,
          further, that if  the Securities  of any series  shall have  been
          issued  in more than one Tranche and if the proposed supplemental
          indenture shall  directly  affect the  rights of  the Holders  of
          Securities of one  or more, but less than all,  of such Tranches,
          then the consent only of  the Holders of a majority in  aggregate
          principal amount of the Outstanding Securities of all Tranches so
          directly affected,  considered as  one class, shall  be required.
          The Indenture also contains  provisions permitting the Holders of
          specified percentages  in principal  amount of the  Securities of
          any  series then  Outstanding, on  behalf of  the Holders  of all
          Securities of  such series,  to waive  compliance by  the Company
          with  certain  provisions  of  the  Indenture  and  certain  past
          defaults under the  Indenture and their  consequences.  Any  such
          consent  or  waiver  by the  Holder  of  this  Security shall  be
          conclusive  and binding  upon  such Holder  and  upon all  future
          Holders  of this  Security and  of any  Security issued  upon the
          registration of  transfer hereof or  in exchange  therefor or  in
          lieu hereof, whether or not notation of such consent or waiver is
          made upon this Security.

                    No reference  herein to the Indenture  and no provision
          of this Security or  of the Indenture  shall alter or impair  the
          obligation of  the Company, which is  absolute and unconditional,
          to  pay the principal of, and premium,  if any, and interest, on,
          this  Security at  the  times, place  and rate,  in  the coin  or
          currency, and in the manner, herein prescribed.

                    As  provided in  the Indenture  and subject  to certain
          limitations therein set  forth, the transfer of  this Security is
          registrable  in the  Security  Register, upon  surrender of  this
          Security  for registration  of  transfer at  the Corporate  Trust
          Office of  the Trustee or such  other office or agency  as may be
          designated  by the  Company for  such purpose  in the  Borough of
          Manhattan, The City of New  York, New York, duly endorsed  by, or
          accompanied  by   a  written  instrument  of   transfer  in  form
          satisfactory  to  the Company  and  the  Security Registrar  duly
          executed by, the Holder hereof or his attorney duly authorized in
          writing,  and, thereupon,  one  or more  new  Securities of  this
          series and Tranche of authorized denominations and  of like tenor
          and aggregate  principal amount will be issued  to the designated
          transferee or transferees.

                    The  Securities of  this  series are  issuable only  as
          Registered  Securities,  without  coupons,  in  denominations  of

          <PAGE> 
          
                                       -4-          
                                       
          $1,000  and  any amount  in excess  thereof  that is  an integral
          multiple of $1,000.   As provided in the Indenture and subject to
          certain limitations therein set  forth, Securities of this series
          and  Tranche  are exchangeable  for  a  like aggregate  principal
          amount  of  Securities of  the same  series  and Tranche,  of any
          authorized  denominations, requested  by the  Holder surrendering
          the same,  and of  like tenor upon  surrender of the  Security or
          Securities to be exchanged  at the Corporate Trust Office  of the
          Trustee or such  other office or agency  as may be designated  by
          the Company for  such purpose  in the Borough  of Manhattan,  The
          City of New York, New York.

                    No  service   charge  shall   be  made  for   any  such
          registration of transfer or exchange, but the Company may require
          payment  of  a  sum   sufficient  to  cover  any  tax   or  other
          governmental charge payable in connection therewith.

                    Prior to due presentment of this Security for registra-
          tion of transfer,  the Company, the Trustee and any  agent of the
          Company or the  Trustee may treat the  Person in whose name  this
          Security  is registered  as  the absolute  owner  hereof for  all
          purposes,  whether or not  this Security be  overdue, and neither
          the Company,  the Trustee nor any such agent shall be affected by
          notice to the contrary.

                    The Indenture  and the Securities shall  be governed by
          and construed in  accordance with the  laws of the  State of  New
          York.

                    All terms  used in this  Security which are  defined in
          the Indenture shall  have the  meanings assigned to  them in  the
          Indenture.

                    As provided in the Indenture,  no recourse shall be had
          for  the payment  of the  principal of,  or premium,  if any,  or
          interest  on, any  Securities, or  any part  thereof, or  for any
          claim  based thereon or otherwise  in respect thereof,  or of the
          indebtedness  represented  thereby,   or  upon  any   obligation,
          covenant   or  agreement   under  the   Indenture,  against   any
          incorporator, stockholder,  officer or director,  as such,  past,
          present  or future,  of  the Company  or  of any  predecessor  or
          successor corporation (either directly  or through the Company or
          a predecessor or successor corporation), whether by virtue of any
          constitutional  provision,  statute or  rule  of law,  or  by the
          enforcement  of any assessment or penalty  or otherwise; it being
          expressly  agreed and understood  that the Indenture  and all the
          Securities are solely corporate obligations, and that no personal
          liability  whatsoever shall  attach to,  or be  incurred by,  any
          incorporator,  stockholder, officer  or director, as  such, past,
          present  or  future  of the  Company  or  of  any predecessor  or
          successor corporation (either directly  or through the Company or
          a   predecessor  or  successor   corporation),  because   of  the
          indebtedness thereby authorized or  under or by reason of  any of
          the  obligations,  covenants  or  agreements  contained  in   the
          Indenture or in any of  the Securities or to be  implied herefrom
          or  therefrom, and  that any  such personal  liability  is hereby
          expressly waived and  released as a condition of, and  as part of
          the  consideration for, the  execution of  the Indenture  and the
          issuance of the Securities.

                    Unless the  certificate  of authentication  hereon  has
          been executed by the  Trustee by manual signature,  this Security
          shall not be  entitled to any benefit  under the Indenture or  be
          valid or obligatory for any purpose.

          <PAGE>
                                       -5-

                    IN WITNESS WHEREOF, the Company has caused this instru-
          ment to  be duly executed under its corporate seal as of the date
          of authentication set forth below.

                                   NORTHWEST NATURAL GAS COMPANY


                                   By: 
                                      ----------------------------------

          [SEAL]

          Attest:
                                    
          --------------------------


                    This is one  of the Securities of the series designated
          in accordance  with,  and referred  to  in, the  within-mentioned
          Indenture.

          Date of Authentication:

                                   Bankers Trust Company
                                   as Trustee

                                   By: 
                                      ------------------------------
                                        Authorized Signatory


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

                    FOR  VALUE  RECEIVED,  the  undersigned  hereby  sells,
          assigns and transfers unto 
                                     ------------------------------
                                     [please insert social security
                                     or other identifying number of
                                     assignee]


          ---------------------------------------------------------------
          [name and address of transferee must be printed or typewritten]


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

          the  within Security of  NORTHWEST NATURAL  GAS COMPANY  and does
          hereby irrevocably constitute and appoint


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

          attorney, to transfer said  Security on the books of  the within-
          mentioned  Company,  with  full  power  or  substitution  in  the
          premises.

          Dated: 
                 ------------------------    ----------------------------



                                                           Exhibit 23

       DELOITTE &
        TOUCHE LLP
     -------------   ---------------------------------------------------------
                     Suite 3900                     Telephone: (503) 222-1341
                     111 S.W. Fifth Avenue          Facsimile: (503) 224-2172
                     Portland, Oregon 97204-3698



          INDEPENDENT AUDITORS' CONSENT


          We consent to the incorporation by reference in this Amendment
          No. 1 to Registration Statement No. 333-15323 of Northwest 
          Natural Gas Company on Form S-3 of our report dated February
          12, 1997, appearing in the Annual Report on Form 10-K of
          Northwest Natural Gas Company for the year ended December 31,
          1996, and to the reference to us under the heading "Experts" in
          the Prospectus, which is part of such Registration Statement. 

          


          /s/ Deloitte & Touche LLP

          April 22, 1997




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