NORTHWEST NATURAL GAS CO
S-3, 1998-03-19
NATURAL GAS DISTRIBUTION
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               AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON 
                                    MARCH 19, 1998
                                                Registration  No. 333-     

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


                          SECURITIES AND EXCHANGE COMMISSION
                                WASHINGTON, D.C. 20549
                                                      
                                ----------------------

                                       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
          incorporation or organization)              Identification No.)

                     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,                  New York, New York  10019
          220 N.W. Second Avenue                       212-603-2000
          Portland, Oregon  97209
               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. [ ]

                           CALCULATION OF REGISTRATION FEE
           ===============================================================

             Title of               Proposed
               each                  maximum    Proposed
             class of               offering     maximum
            securities    Amount      price     aggregate     Amount of
              to be        to be       per      offering     registration
            registered  registered   share*      price*          fee
           ---------------------------------------------------------------
           Common
           Stock, 
           $3 1/6 Par   2,500,000
           Value        shares       $27.16    $67,900,000    $20,030.50
           ---------------------------------------------------------------
           Common
           Share
           Purchase     2,500,000
           Rights       rights **       --         --             --
          =================================================================
          *Calculated, pursuant to Rule 457(c) solely for the purpose of
          determining the registration fee, based on the average of the
          high and low prices of the Common Stock on March 17, 1998 on the
          Nasdaq National Market.

          **Since no separate consideration is paid for the Common Share
          Purchase Rights (Rights), the registration fee for such
          securities is included in the fee for the Common Stock.  The
          value attributable to the Rights,if any, is reflected in the
          market price of the Common Stock.

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

               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.

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


     <PAGE>

          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 jurisdiction in which such offer,
          solicitation or sale would be unlawful prior to registration or
          qualification under the securities laws of any such jurisdiction. 

                     SUBJECT TO COMPLETION, DATED MARCH 19, 1998

          PROSPECTUS
          ----------


                            NORTHWEST NATURAL GAS COMPANY


                                     COMMON STOCK


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


             Northwest Natural Gas Company (the "Company") intends from
          time to time to issue and sell an aggregate not to exceed
          2,500,000 authorized but unissued shares of its common stock, par
          value $3 1/6 per share (the "Common Stock"), and the common share
          purchase rights appurtenant thereto (the "Rights" and, together
          with the 2,500,000 shares of Common Stock, the "Shares"), on
          terms to be determined at the times of sale.  For each issue of
          the Shares for which this Prospectus will be delivered, there
          will be an accompanying Prospectus Supplement that will set forth
          the terms of the offering.  The Common Stock is traded in the
          over-the-counter market.  Its price and volume data are reported
          on the Nasdaq Stock Market National Market System using the
          symbol "NWNG".


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


            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.  ANY
                            REPRESENTATION TO THE CONTRARY
                                IS A CRIMINAL OFFENSE.



             The Shares may be sold directly by the Company or through
          agents designated from time to time or through underwriters or
          dealers.  If any agents of the Company or any underwriters are
          involved in the sale of the Shares in respect of which this
          Prospectus will be delivered, the names of such agents or
          underwriters, and the initial price to the public, any applicable
          commissions or discounts and the net proceeds to the Company, or
          the means of determining the same, will be set forth in an
          accompanying Prospectus Supplement.  The Company may indemnify
          agents and underwriters against certain civil liabilities,
          including liabilities under the Securities Act of 1933, as
          amended.  See "Plan of Distribution".



                   The date of this Prospectus is March      , 1998


     <PAGE>

                                AVAILABLE INFORMATION

               The Company is subject to the informational requirements of
          the Securities Exchange Act of 1934, as amended (the "Exchange
          Act"), and, in accordance therewith, files reports and other
          information with the Securities and Exchange Commission (the
          "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 are hereby incorporated by reference in this
          Prospectus the following documents heretofore filed with the
          Securities and Exchange Commission:

               1. The Company's Annual Report on Form 10-K for the year
                  ended December 31, 1997; 

               2. The Company's Current Report on Form 8-K dated February
                  27, 1998; and 

               3. The Company's Registration Statement on Form 8-A dated
                  February 27, 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; provided, however, that the documents enumerated
          above or subsequently filed by the Company pursuant to Section 13
          of the Exchange Act prior to the filing with the Commission of
          the Company's most recent Annual Report on Form 10-K (the "Latest
          Annual Report") shall not be incorporated by reference in this
          Prospectus or be a part hereof from and after the filing of the
          Latest Annual Report.  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 is principally engaged in the distribution of
          natural gas to customers in western Oregon and southwestern
          Washington, including the Portland metropolitan area.  The
          Company and its predecessors have supplied gas service to the


                                       2
     <PAGE>

          public since 1859.  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.  


                        USE OF PROCEEDS AND FINANCING PROGRAM

               The net proceeds to be received by the Company from the sale
          of the Shares 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 and to repay
          short-term debt incurred for such purpose.

               The Company expects its utility construction expenditures in
          1998 to aggregate $90 million, and in the five-year period, 1998-
          2002, to aggregate between $500 million and $550 million.

               The Company estimates that approximately 50% of the funds
          required for utility purposes during the 1998-2002 period will be
          internally generated and that the balance will be funded through
          short-term borrowings which will be refinanced periodically
          through the sale of long-term debt and equity securities,
          including the Shares, in such amounts and at such times as the
          Company's cash requirements and market conditions shall
          determine.


                              DESCRIPTION OF THE SHARES

               The following is a summary of certain rights and privileges
          of the Shares.  This summary description does not purport to be
          complete.  Reference is made to the Restated Articles of
          Incorporation and the Bylaws of the Company and the Rights
          Agreement, filed as exhibits to the Registration Statement, for
          complete statements.  The following statements are qualified in
          their entirety by such references.

               Dividends and Liquidation Rights:  Except as hereinafter
          stated, the Common Stock is entitled to receive such dividends as
          are declared by the Board of Directors and to receive ratably on
          liquidation any assets which remain after payment of liabilities. 
          The Company's Preferred and Preference Stock are entitled in
          preference to the  Common Stock (1) to cumulative dividends at
          the annual rate fixed for each series by the Board of Directors,
          and (2) in voluntary and involuntary liquidation, to the amounts
          fixed for each series by the Board of Directors, plus in each
          case, unpaid accumulated dividends.

               Dividend Limitations:  Should dividends on either the
          Preferred or the Preference Stock be in arrears, no dividends on
          the Common Stock may be paid or declared.  Except with the
          consent of the holders of a majority of the Preferred Stock then
          outstanding, no dividends on the Common Stock or the Preference
          Stock may be paid or declared unless the Preferred Stock purchase
          and sinking fund obligations have been met for that year.  Future
          series of the Preferred or the Preference Stock could contain
          sinking fund, purchase or redemption obligations under which no
          dividends on the Common Stock may be paid or declared while such
          obligations are in default.  Common Stock dividends also may be
          restricted by the provisions of future instruments pursuant to
          which the Company may issue long-term debt.

               Voting Rights:  Except as provided by law or as described
          below, only the Common Stock has voting rights.  Cumulative
          voting is permitted by the Restated Articles of Incorporation to
          holders of Common Stock at elections of directors.  The Preferred
          Stock has the special right to elect the smallest number of
          directors which constitutes at least one-fourth of the total
          number of directors, or two directors, whichever is greater, if
          payments of four quarterly dividends or more on any share or
          shares of Preferred Stock should be in arrears.

               Classification of the Board of Directors:  The Board of
          Directors of the Company may consist of not less than nine nor
          more than 13 persons, as determined by the Board, divided into


                                       3
     <PAGE>

          three classes as nearly equal in number as possible.  The current
          number is 12.  One class is elected for a three-year term at each
          annual meeting of shareholders.  Vacancies, including those
          resulting from an increase in the size of the Board, may be
          filled by a majority vote of the directors then in office.  One
          or more of the directors may be removed, with or without cause,
          by the affirmative vote of the holders of not less than two-
          thirds of the shares entitled to vote thereon; provided, however,
          that if fewer than all of the directors should be candidates for
          removal, no one of them shall be removed if the votes cast
          against such director's removal would be sufficient to elect such
          director if then cumulatively voted at an election of the class
          of directors of which such director shall be a part.  Except for
          those persons nominated by the Board, no person shall be eligible
          for election as a director unless a request from a shareholder
          entitled to vote in the election of directors that such person be
          nominated and such person's consent thereto shall be delivered to
          the Secretary of the Company in advance of the meeting at which
          such election shall be held.  The foregoing provisions may not be
          amended or repealed except by the affirmative vote of the holders
          of not less than two-thirds of the shares entitled to vote at an
          election of directors.  The foregoing provisions will not apply
          to directors, if any, elected by the holders of the Preferred
          Stock.

               Transactions with Related Persons:  The Company shall not
          enter into any business transaction with a related person or in
          which a related person shall have an interest (except
          proportionately as a shareholder of the Company) without first
          obtaining both (1) the affirmative vote of the holders of not
          less than two-thirds of the outstanding shares of the capital
          stock of the Company not held by such related person, and (2) the
          determination of a majority of the continuing directors that the
          cash or fair market value of the property, securities or other
          consideration to be received per share by the holders, other than
          such related person, of the shares of each class or series of the
          capital stock of the Company in such business transaction shall
          not be less than the highest purchase price paid by such related
          person in acquiring any of its holdings of shares of the same
          class or series, unless the continuing directors by a majority
          vote shall either (a) have expressly approved the acquisition of
          the shares of the capital stock of the Company that caused such
          related person to become a related person, or (b) have expressly
          approved such business transaction.  As used in this paragraph: a
          "business transaction" includes a merger, consolidation,
          reorganization or recapitalization, a purchase, sale, lease,
          exchange or mortgage of all or a substantial part (10% or more)
          of the property of the Company or a related person, an issuance,
          sale or exchange of securities and a liquidation, spin-off or
          dissolution; a "related person" includes a person, organization
          or group thereof owning 10% or more of the capital stock of the
          Company; "continuing directors" are those whose nominations for
          directorship shall have been approved by a majority of the
          directors in office on April 9, 1984 or by a majority of the then
          continuing directors.  The foregoing provisions may not be
          amended or repealed except by the affirmative vote of the holders
          of not less than two-thirds of the shares of the capital stock of
          the Company (other than shares held by related persons).

               Preemptive Rights:  The holders of the Common Stock have no
          preemptive rights.

               Other Provisions:  The issued and outstanding shares of the
          Company's Common Stock are, and the Common Stock offered hereby
          will be, fully paid and nonassessable.  

               Transfer Agent and Registrar:  The Company is the transfer
          agent and registrar for the Common Stock.

               Common Share Purchase Rights:  The holders of the Common
          Stock have one Right for each of their shares.  Each Right,
          initially evidenced by and traded with the Common Stock, entitles
          the holder to purchase one-tenth of a share of Common Stock at a
          Purchase Price of $6.67, subject to adjustment.  The Rights will
          be exercisable only if a person or group ("Person") shall acquire
          ownership of 15% or more of the Common Stock (such Person being
          hereinafter referred to as an "Acquiring Person") or shall
          announce a tender offer, the consummation of which would result
          in such Person becoming an Acquiring Person.

               If any Person shall have become an Acquiring Person, each
          Right, other than Rights owned by the Acquiring Person (which
          shall be void), may be exercised by its holder to purchase, at a


                                       4
     <PAGE>

          50% discount, shares of Common Stock having a market value equal
          to 20 times the Purchase Price.  If a Person shall have become an
          Acquiring Person but shall not have acquired ownership of 50% or
          more of the Common Stock, the Board of Directors may provide for
          the exchange of all or a part of the Rights (other than Rights
          which shall be void as described above) for Common Stock at a
          ratio of one share per Right.

               In the event that (i) the Company shall consolidate or merge
          with any other person, (ii) any person shall consolidate or merge
          with the Company and the Company shall be the surviving
          corporation and, in connection therewith, all or part of the
          Common Stock shall be changed into or exchanged for stock or
          other securities of any person (including the Company) or cash or
          any other property, or (iii) the Company shall sell or otherwise
          transfer, assets or earning power aggregating 50% or more of the
          assets or earning power of the Company to any other person, each
          Right, except Rights owned by an Acquiring Person (which shall be
          void), may be exercised by its holder to purchase, at a 50%
          discount, shares of common stock of the other person having a
          market value equal to 20 times the Purchase Price.

               At any time prior to any Person becoming an Acquiring
          Person, the Board of Directors may redeem the Rights at a price
          of $.01 per Right.  The Rights will expire on March 15, 2006
          unless they are exchanged or redeemed (as described above)
          earlier than that date.

               The issuance of Common Stock upon exercise of the Rights
          will be subject to any necessary regulatory approvals.

               The Rights have anti-takeover effects because they will
          cause substantial dilution of the Common Stock if a Person
          attempts to acquire the Company on terms not approved by the
          Board of Directors.


                                 PLAN OF DISTRIBUTION

               The Company may sell the Shares in any of three ways: (i)
          through underwriters or dealers; (ii) directly to a limited
          number of purchasers or to a single purchaser; or (iii) through
          agents.  Each Prospectus Supplement will set forth the terms of
          the offering of the Shares offered thereby, including the name or
          names of any underwriters, the purchase price of such Shares and
          the proceeds to the Company from such sale, any underwriting
          discounts and other items constituting underwriters'
          compensation, any initial public offering price and any discounts
          or concessions allowed or reallowed or paid to dealers.  Any
          initial public offering price and any discounts or concessions
          allowed or reallowed or paid to dealers may be changed from time
          to time.

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

               The Shares may be sold directly by the Company or through
          agents designated by the Company from time to time.  Each
          Prospectus Supplement will set forth the name of any agent
          involved in the offer or sale of the Shares in respect of which
          such Prospectus Supplement is delivered as well as any
          commissions payable by the Company to such agent.  Unless


                                       5
     <PAGE>

          otherwise indicated in such Prospectus Supplement, any such agent
          will be acting on a best efforts basis for the period of its
          appointment.

               If so indicated in a Prospectus Supplement, the Company will
          authorize agents, underwriters or dealers to solicit offers by
          certain specified institutions to purchase the Shares offered
          thereby from the Company at the public offering price set forth
          in such Prospectus Supplement pursuant to delayed delivery
          contracts providing for payment and delivery on a specified date
          in the future.  Such contracts will be subject to those
          conditions set forth in such Prospectus Supplement, which will
          set forth the commission payable for solicitation of such
          contracts.

               Agents and underwriters may be entitled under agreements
          entered into with the Company to indemnification by the Company
          against certain civil liabilities, including liabilities under
          the Securities Act of 1933, as amended.


                                       EXPERTS

               The financial statements as of and for the year ended
          December 31, 1997 incorporated in this Prospectus by reference to
          the Annual Report on Form 10-K for the year ended December 31,
          1997 have been so incorporated in reliance on the report of Price
          Waterhouse LLP, independent accountants, given on the authority
          of said firm as experts in accounting and auditing.  

               The financial statements as of and for the years ended
          December 31, 1995 and 1996 incorporated by reference in this
          Prospectus by reference to the Annual Report on Form 10-K for the
          year ended December 31, 1997 have been audited by Deloitte &
          Touche LLP, independent auditors, as stated in their report,
          which is incoprorated 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 Common Stock" herein and, if
          any, in the accompanying Prospectus Supplement have been reviewed
          by Mark S. Dodson, Esquire, Portland, Oregon.  Mr. Dodson is
          General Counsel of the Company.  These statements and conclusions
          are set forth in reliance upon the opinion of Mr. Dodson given
          upon his authority as an expert.  As of March 19, 1998, Mr.
          Dodson owned no shares of the Company's common stock.  Mr. Dodson
          has been granted an option to purchase 5,000 shares at a price of
          $27.875, the market price of the shares on the date such option
          was granted.  


                                       LEGALITY

               The legality of the Shares will be passed upon for the
          Company by Mr. Dodson and by Messrs. Reid & Priest LLP, New York,
          New York, and for the underwriters by Messrs. Simpson Thacher &
          Bartlett, New York, New York.  Messrs. Reid & Priest LLP and
          Messrs. Simpson Thacher & Bartlett may rely on the opinion of Mr.
          Dodson as to legal matters arising under Oregon and Washington
          law.


                                       6
     <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                          $     20,030.50

                Legal fees  . . . . . . . . . . . . . .     70,000.00

                Accounting fees and expenses  . . . .       20,000.00

                Printing and engraving  . . . . . . . .     35,000.00

                Miscellaneous expense   . . . . . . . .     31,469.50
                                                           ----------
                  Total expenses  . . . . . . . . . . .   $176,500.00
                                                           ==========


          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, as described below)
          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.


                                      II-1
     <PAGE>

          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;

          (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 Underwriting Agreement.

                    4(a)*  -   Restated Articles of Incorporation, as filed
                               and effective June 24, 1988, as amended
                               December 8, 1992, December 1, 1993 and
                               May 27, 1994 (filed as Exhibit (3a.) to
                               Form 10-K for 1994).

                    4(b)*  -   Bylaws as amended December 18, 1997 (filed
                               as Exhibit (3b.) to Form 10-K for 1997).  

                    4(c)*  -   Rights Agreement, dated as of February 27,
                               1996, between the Company and Boatmen's
                               Trust Company, ChaseMellon Shareholder
                               Services as successor, which includes as
                               Exhibit A thereto the form of a Right
                               Certificate and as Exhibit B thereto the
                               Summary of Rights to Purchase Common Shares
                               (filed as Exhibit 1 to Form 8-A, dated
                               February 27, 1996).

                    5(a)   -   Opinion of Mark S. Dodson, Esq.

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

                    23(a)  -   Consent of Deloitte & Touche LLP.


                                       II-2
     <PAGE>

                    23(b)  -   Consent of Price Waterhouse LLP.  Consents
                               of Mark S. Dodson, Esq., and Reid & Priest
                               LLP are included in their opinions filed,
                               respectively, as Exhibit 5(a) and
                               Exhibit 5(b).

                    24     -   Power of Attorney (see page II-4).  

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


          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


                                      II-3
     <PAGE>

          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.


                                  POWER OF ATTORNEY

             Each director and/or officer of the registrant whose signature
          appears on the following page hereby appoints Richard G. Reiten,
          Bruce R. DeBolt and John T. Hood, the Agents for Service named in
          this registration statement, and each of them severally, as his
          attorney-in-fact to sign in his name and behalf, in any and all
          capacities stated below, and to file with the Securities and
          Exchange Commission, any and all amendments, including post-
          effective amendments, to this registration statement, and the
          registrant hereby also appoints each such Agent for Service as
          its attorney-in-fact with like authority to sign and file any
          such amendments in its name and behalf.




                                      II-4
     <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 19th day of
          March, 1998.

                                  NORTHWEST NATURAL GAS COMPANY

                                  By:   /s/ Richard G. Reiten 
                                       -----------------------
                                       Richard G. Reiten
                                     President and Chief Executive 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,  March 19, 1998
     -------------------------  and Director
        Richard G. Reiten       
        President and Chief
        Executive Officer

      /s/ Bruce R. DeBolt       Principal Financial           March 19, 1998
     -------------------------  Officer
        Bruce R. DeBolt         
        Senior Vice President,
        Finance, and Chief
        Financial Officer

      /s/ D. James Wilson       Principal Accounting          March 19, 1998
     -------------------------  Officer
        D. James Wilson         
        Treasurer and Controller

      /s/ Mary Arnstad          
     -------------------------
        Mary Arnstad

      /s/ Thomas E. Dewey, Jr.  
     -------------------------
        Thomas E. Dewey, Jr.

      /s/ Tod R. Hamachek       
     -------------------------
        Tod R. Hamachek

      /s/ Richard B. Keller     
     -------------------------
        Richard B. Keller

     /s/ Wayne D. Kuni          
     -------------------------
        Wayne D. Kuni

     /s/ Randall C. Pape        Directors                     March 19, 1998
     -------------------------
        Randall C. Pape

     /s/ Robert L. Ridgley      
     -------------------------
        Robert L. Ridgley

      /s/ Dwight A. Sangrey     
     -------------------------
        Dwight A. Sangrey

      /s/ Melody C. Teppola     
     -------------------------
        Melody C. Teppola

      /s/ Russell F. Tromley    
     -------------------------
        Russell F. Tromley

      /s/ Benjamin R. Whiteley  
     -------------------------
        Benjamin R. Whiteley


                                      II-5
     <PAGE>


                                  INDEX TO EXHIBITS


          Exhibit
          -------

            1         Form of Underwriting Agreement.

            4(a)*     Restated Articles of Incorporation, as filed and
                      effective June 24, 1988, as amended December 8, 1992,
                      December 1, 1993 and May 27, 1994 (filed as Exhibit
                      (3a.) to Form 10-K for 1994).

            4(b)*     Bylaws as amended December 18,1997 (filed as
                      Exhibit (3b.) to Form 10-K for 1997).

            4(c)*     Rights Agreement, dated as of February 27, 1996,
                      between the Company and Boatmen's Trust Company,
                      ChaseMellon Shareholder Services as successor, which
                      includes as Exhibit A thereto the form of a Right
                      Certificate and as Exhibit B thereto the Summary of
                      Rights to Purchase Common Shares (filed as Exhibit 1
                      to Form 8-A, dated February 27, 1996).

            5(a)      Opinion of Mark S. Dodson, Esq.

            5(b)      Opinion of Reid & Priest LLP.

            23(a)     Consent of Deloitte & Touche LLP.

            23(b)     Consent of Price Waterhouse LLP.  Consents of Mark S.
                      Dodson, Esq., and Reid & Priest LLP are included in
                      their opinions filed, respectively, as Exhibit 5(a)
                      and Exhibit 5(b).

            24        Power of Attorney (see page II-4).

          -------------------------
          *     Previously filed
          




                                UNDERWRITING AGREEMENT
                                ----------------------


                            NORTHWEST NATURAL GAS COMPANY

                                     Common Stock

                    Price to the Company:  $ [<bullet>] per Share

                                                           [<bullet>], 1998

          To the Underwriters named in Schedule I hereto

          Dear Sirs:

                    Northwest Natural Gas Company, an Oregon corporation
          (the "Company"), proposes, subject to the terms and conditions
          stated herein, to issue and sell to you the aggregate number of
          shares of its Common Stock, par value $3-1/6 per share (the
          "Common Stock"), and the common share purchase rights appurtenant
          thereto (the "Rights" and, together with the Common Stock, the
          "Shares") set forth opposite your respective names in Schedule I
          hereto (such aggregate number of Shares being referred to herein
          as the "Firm Shares"), at the price to the Company set forth
          above.  In addition, for the sole purpose of covering over-
          allotments in connection with the sale of such securities, the
          Company proposes to grant to you an option (the "Option") to
          purchase from the Company, in the same proportions as set forth
          in Schedule I hereto, not more than an additional [<bullet>]
          Shares (the Shares purchased by you upon exercise of the Option
          are referred to herein as the "Option Shares") exercisable within
          the period of 30 days from the date hereof, at the Price to the
          Company set forth above.  As used herein (except in Sections 2
          and 6 hereof where it shall include only the Firm Shares), the
          term "Securities" shall be deemed to include both the Firm Shares
          and the Option Shares.  As used herein, the term "New Common
          Stock" shall be deemed to include the aggregate number of shares
          of Common Stock included as part of both the Firm Shares and the
          Option Shares, and the term "New Rights" shall be deemed to
          include the aggregate number of Rights included as part of both
          the Firm Shares and the Option Shares.  

                    1.  Representations and Warranties of the Company.  The
                        ---------------------------------------------
          Company represents and warrants to, and agrees with, each of you
          that:

                    (a)  A registration statement on Form S-3 with respect
               to the Securities has been prepared by the Company in
               conformity with the requirements of the Securities Act of
               1933, as amended (the "Act"), and the rules and regulations
               (the "Rules and Regulations") of the Securities and Exchange
               Commission (the "Commission") under the Act, has been filed
               with the Commission and has become effective.  Copies of the
               registration statement, together with all amendments, if
               any, and of the prospectus contained therein, in the form in
               which it became effective, including the documents
               incorporated in such prospectus by reference, have here-
               tofore been delivered to you.  The registration statement in
               the form in which it most recently became effective, includ-
               ing all exhibits thereto, is referred to hereinafter as the
               "Registration Statement".  The prospectus, including the
               documents incorporated therein by reference, contained in
               the Registration Statement is referred to hereinafter as the
               "Prospectus"; provided, that, when, on or after the date
               hereof, the Prospectus shall be supplemented with respect to
               the Securities (the "Prospectus Supplement") in a filing
               with the Commission pursuant to Rule 424(b) under the Act,
               "Prospectus", for all purposes of this Agreement, except
               this Section 1, shall mean the Prospectus as so
               supplemented;

                    (b)  No stop order with respect to the Registration
               Statement has been issued by the Commission under the Act
               and no proceeding therefor of which the Company has received
               notice has been instituted; the Registration Statement, at
               the time it became effective, conformed in all material
               respects to the requirements of the Act and the Rules and
               Regulations; neither the Prospectus on the date hereof
               contains, nor the Registration Statement at the time it
               became effective contained, an untrue statement of a
               material fact, and neither the Prospectus on the date hereof
               omits, nor the Registration Statement at the time it became
               effective 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; and each document incorporated by
               reference in the Prospectus and filed pursuant to the
               Securities Exchange Act of 1934, as amended (the "Exchange
               Act"), conformed when so filed in all material respects to
               the requirements of the Exchange Act and the applicable
               rules and regulations thereunder;

                    (c)  Since the respective dates as of which information
               is given in the Prospectus, there has not been any material
               adverse change in the business, property or financial
               condition of the Company, and there has not been any
               material transaction entered into by the Company other than
               transactions in the ordinary course of business and
               transactions referred to in, or contemplated by, the
               Prospectus; and the Company does not have any material
               contingent obligation which is not disclosed in the
               Prospectus;

                    (d)  The consummation by the Company of the
               transactions herein contemplated and the fulfillment of the
               terms hereof will not result in a breach of any of the terms
               or provisions of, or constitute a default under, any
               statute, indenture, mortgage, deed of trust or other
               agreement or instrument 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, or any order, rule or regulation
               applicable to the Company of any court or governmental
               agency or body having jurisdiction over the Company or any
               of its properties; no approval, authorization, consent or
               order of any public board or body is legally required for
               the issuance and sale of the Securities by the Company
               hereunder, except such as may be issued by the Public
               Utility Commission of Oregon and the Washington Utilities
               and Transportation Commission or be required under the Act
               or state securities laws;

                    (e)  The financial statements, together with related
               notes, incorporated by reference in the Prospectus present
               fairly the financial position and the results of operations
               of the Company on the bases set forth in such statements and
               related notes at the dates or for the periods to which they
               apply; and such statements and related notes have been
               prepared in accordance with generally accepted principles of
               accounting, consistently applied throughout the periods
               involved, except as otherwise stated therein;

                    (f)  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 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 and each of the Company's subsidiaries has been
               duly incorporated and is validly existing as a corporation
               in good standing under the laws of the jurisdiction of its
               incorporation, with full power and authority to own or lease
               its properties and conduct its business, and is duly
               qualified to do business and is in good standing in each
               jurisdiction in which the character of the business
               conducted by it or the location of the properties owned or
               leased by it makes such qualification necessary;

                    (g)  All of the outstanding shares of the capital stock
               of the Company have been duly and validly authorized and
               issued and are fully paid and non-assessable; when the
               shares of New Common Stock shall have been delivered against
               payment therefor as provided herein, they will have been
               duly and validly authorized and issued and fully paid and
               non-assessable; when the New Rights have been issued in
               accordance with the terms of the Rights Agreement dated as
               of February 27, 1996 between the Company and Boatmen's Trust
               Company (ChaseMellon Shareholder Services, successor), they
               will have been duly and validly authorized and issued;  and
               the Securities conform to the description thereof contained
               in the Prospectus; and

                    (h)  Other than as set forth in the Prospectus, there
               are no legal, governmental or administrative proceedings
               pending to which the Company is a party or of which any
               property of the Company is the subject, the outcome of
               which, in the opinion of the Company, would singly or in the
               aggregate have a material adverse effect on the business,
               property or financial position of the Company; and, to the
               best of the Company's knowledge, no such proceedings are
               threatened or contemplated by governmental authorities or
               threatened by others.

                    2.  Purchase and Sale.  Subject to the terms and 
                        -----------------
          conditions herein set forth, the Company agrees to sell to each
          of you, and each of you agrees, severally and not jointly, to
          purchase from the Company, at the Price to the Company set forth
          in Schedule I hereto, the Securities in the amounts set forth
          opposite your respective names in Schedule I hereto.

                    In addition, the Company hereby grants to you the
          Option.  The Option may be exercised, in whole or in part, on one
          occasion during the term thereof by written notice from you to
          the Company.  Such notice shall set forth the number of Option
          Shares as to which the Option is being exercised and specify the
          date of delivery of, and payment for, such Option Shares, which
          date shall be neither earlier than the latter of the Time of
          Delivery or the second business day after the date of exercise
          nor later than the seventh business day after the date of exer-
          cise.

                    3.  Offering.  Subject to the terms and conditions 
                        --------
          herein set forth, you will make an offering of the Securities
          upon the terms and conditions set forth in the Prospectus.

                    4.  Payment and Delivery.  Delivery of the Firm Shares
                        --------------------
          and payment therefor, in New York Clearing House funds payable to
          the order of the Company, shall be made at the office of Reid &
          Priest LLP, 40 West 57th Street, New York, New York, at 10:00
          A.M., New York City time, on the [<bullet>] business day after
          the date hereof, or at such other place, time and date as shall
          be agreed upon in writing by the Company and you.  The hour and
          date of such delivery and payment are herein called the "Time of
          Delivery".

                    The Firm Shares shall be delivered to you for your
          respective accounts in fully registered form and in such
          authorized denominations and registered in such names as you may
          reasonably request in writing not later than 2:00 P.M., New York
          City time, on the second business day preceding the Time of
          Delivery, or to the extent not so requested, registered in your
          respective names in such authorized denominations as the Company
          shall determine.  The Company agrees to make the Securities
          available to you for checking purposes not later than 2:00 P.M.,
          New York City time, on the last full business day preceding the
          Time of Delivery, at the office of Bankers Trust Company, or at
          such other place, time or date as may be agreed upon between the
          Company and you.

                    Delivery of the Option Shares and payment therefor, in
          New York Clearing House funds payable to the order of the
          Company, shall be made at the office of Reid & Priest LLP, 40
          West 57th Street, New York, New York, at 10:00 A.M., New York
          City time, on the date specified by you in accordance with
          Section 2 hereof, or at such other place, time and date as shall
          be agreed upon in writing by the Company and you.  The hour and
          date of such delivery and payment are herein called the "Option
          Shares Time of Delivery".

                    The Option Shares shall be delivered to you for your
          respective accounts in fully registered form and in such
          authorized denominations and registered in such names as you may
          reasonably request in writing not later than 2:00 P.M., New York
          City time, on the second business day preceding the Option Shares
          Time of Delivery, or to the extent not so requested, registered
          in your respective names in such authorized denominations as the
          Company shall determine.  The Company agrees to make the Option
          Shares available to you for checking purposes not later than 2:00
          P.M., New York City time, on the last full business day preceding
          the Option Shares Time of Delivery, at the office of Bankers
          Trust Company, or at such other place, time or date as may be
          agreed upon between the Company and you.

                    If any one or more of you shall default on your
          obligation or obligations to purchase and pay for the Securities
          which you have agreed herein to purchase and pay for (such of you
          which shall have so defaulted being referred to herein as a
          "Defaulting Underwriter"), the Company shall immediately give
          written notice thereof to each of you which shall not have so
          defaulted (the "Non-defaulting Underwriters") or, if one or more
          of you shall have executed this Agreement as the representative
          or representatives of the Underwriters named in Schedule I here-
          to, to such representative or representatives, and the Non-
          defaulting Underwriters shall have the right, within 24 hours
          after the receipt of such notice by the Non-defaulting
          Underwriters or their representative or representatives, to
          determine to purchase or to procure one or more others, members
          of the National Association of Securities Dealers, Inc. ("NASD")
          and satisfactory to the Company, to purchase, upon the terms
          herein set forth, the amount of the Securities which the De-
          faulting Underwriter so agreed to purchase.  If the Non-
          defaulting Underwriters shall determine to exercise such right,
          they shall give notice to the Company of such determination
          within 24 hours after their receipt of notice from the Company of
          such default, and, thereupon, the Time of Delivery shall be post-
          poned for such period, not exceeding three business days, as the
          Company shall determine, in order that the required changes in
          the Registration Statement, the Prospectus and any other
          documents or arrangements may be effected.  If, in the event of
          such a default, the Non-defaulting Underwriters shall fail to
          give such notice or, within such 24-hour period, shall give
          notice to the Company that the Non-defaulting Underwriters will
          not exercise such right, this Agreement may be terminated by the
          Company, upon notice given to the Non-defaulting Underwriters (or
          their representative or representatives), within a further period
          of 24 hours.  If the Company shall not elect to so terminate this
          Agreement, it shall have the right:

                    (a)  to require the Non-defaulting Underwriters to
                         purchase and pay for the respective amounts of the
                         Securities which they have severally agreed to
                         purchase hereunder and, in addition, to purchase
                         and pay for (in proportion to their respective
                         commitments hereunder except as may be otherwise
                         determined by the Non-defaulting Underwriters) the
                         amount of the Securities which the Defaulting
                         Underwriter shall have failed to purchase up to
                         10% of the respective amounts of the Securities
                         which the Non-defaulting Underwriters have
                         otherwise agreed to purchase, and/or

                    (b)  to procure one or more others, members of the
                         NASD, to purchase, upon the terms herein set
                         forth, the amount of the Securities which the
                         Defaulting Underwriter agreed to purchase or that
                         portion thereof which the Non-defaulting Under-
                         writers shall not be obligated to purchase
                         pursuant to the foregoing clause (a).

          In the event the Company shall exercise its rights under (a)
          and/or (b) above, the Company shall give notice thereof to the
          Non-defaulting Underwriters (or their representative or
          representatives) within such further period of 24 hours, and,
          thereupon, the Time of Delivery shall be postponed for such
          period, not exceeding three business days, as the Company shall
          determine, in order that the required changes in the Registration
          Statement, the Prospectus and any other documents or arrangements
          may be effected.

                    Any action taken by the Company under this Section 4
          shall not relieve any Defaulting Underwriter from liability in
          respect of its obligations under this Agreement.  Termination by
          the Company under this Section 4 shall be without liability on
          the part of the Company or any Non-defaulting Underwriter;
          provided, however, that such termination shall not affect the
          payment obligations set forth in Section 5 hereof.

                    5.  Covenants of the Company.  The Company agrees with 
                        ------------------------
          each of you that it will:

                    (a)  Promptly deliver to you a copy of the Registration
               Statement and of all amendments thereto (in each case
               including copies of all documents (other than exhibits)
               incorporated therein by reference and all exhibits filed
               therewith), either signed or certified by an officer of the
               Company, and including a copy of each consent and opinion
               included therein or filed as an exhibit thereto, either
               signed or certified by an officer of the Company, and as
               many unsigned copies of the Registration Statement and such
               amendments, as you may reasonably request.  The Company also
               will deliver to you as soon as practicable after the date of
               this Agreement and thereafter from time to time, during such
               period of time as a prospectus relating to the Securities is
               required to be delivered under the Act, as many copies of
               the Prospectus, including any amendments or supplements
               thereto, as you may reasonably request for the purposes of
               the Act.

                    (b)  Promptly advise you (i) when any amendment of the
               Registration Statement shall have become effective, (ii) of
               any request by the Commission for any amendment of the
               Registration Statement or the Prospectus, and (iii) of the
               issuance of any stop order under the Act with respect to the
               Registration Statement or the institution of any proceedings
               therefor of which the Company shall have received notice. 
               The Company will use its best efforts to prevent the
               issuance of any such stop order and to secure the prompt
               removal thereof, if issued.  The Company will not file any
               amendment to the Registration Statement or supplement to the
               Prospectus unless the Company has furnished to you a copy
               for your review prior to filing.

                    (c)  Pay all expenses and taxes (excluding any transfer
               taxes) in connection with (i) the preparation and filing by
               it of the Registration Statement and the Prospectus, (ii)
               the preparation and delivery of this Agreement, (iii) all
               corporate and regulatory actions precedent to the issuance
               and delivery of the Securities, (iv) the issuance and
               delivery of the Securities, (v) except as provided in
               Section 5(d) hereof, the printing and delivery to you of
               reasonable quantities of the Registration Statement, the
               Prospectus and any amendment or supplement, (vi) the fees
               and expenses of any transfer agent and registrar, and (vii)
               the qualification of the Securities for offering and sale
               under state securities laws, including the fees, not to
               exceed $5,000, and disbursements of your counsel in
               connection with such qualification as provided in Section
               5(f) hereof and in connection with blue sky surveys.

                    (d)  During such period of time (not exceeding nine
               months) after the effective date of the Registration
               Statement as you may be required by law to deliver a
               prospectus, if either the Company shall become aware or you
               shall advise the Company in writing of the occurrence of any
               event which should be set forth in a supplement to or an
               amendment of the Prospectus in order to make the Prospectus
               not misleading in the light of then existing circumstances,
               the Company will forthwith, at its expense, prepare and
               furnish to you a reasonable number of copies of a supplement
               or an amendment to the Prospectus which will supplement or
               amend the Prospectus so that as so supplemented or amended
               it will not contain any 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 then existing
               circumstances, not misleading.  In case any of you shall be
               required to deliver a prospectus after the expiration of
               nine months from the date of this Agreement, the Company,
               upon your request, will furnish to you, at your expense, a
               reasonable quantity of a supplemented or amended prospectus,
               or supplements or amendments to the Prospectus complying
               with Section 10(a) of the Act.

                    (e)  Make generally available to its security holders,
               as soon as practicable, an earning statement (which need not
               be audited) covering a period of 12 months beginning on the
               first day of the Company's fiscal quarter next succeeding
               the effective date of the Registration Statement.

                    (f)  Furnish such proper information as may be lawfully
               required and otherwise cooperate in qualifying the
               Securities for offer and sale under the securities or blue
               sky laws of such jurisdictions as you may designate, and
               file and make in each year such statements or reports as are
               or may be reasonably required by the laws of such
               jurisdictions; provided, however, that the Company shall not
               be required to qualify as a foreign corporation or dealer in
               securities, or to file any consents to service of process
               under the laws of any jurisdiction, or to meet other
               requirements deemed by the Company to be unduly burdensome;
               and provided, further, that the provisions of this 
                   --------  -------
               subsection (f) 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.  

                    (g)  Except for sales of equity securities pursuant to
               shareholder and employee plans, during the period beginning
               on the date of this Agreement and continuing to and
               including the 45th day following the Time of Delivery, not
               to offer, sell, continue to sell or otherwise dispose of any
               other of its securities of the same class as the Securities
               without your prior consent.

                    All fees and disbursements of your counsel (exclusive
          of fees and expenses of such counsel which are to be paid by the
          Company as set forth in subsection (vii) of Section 5(c) hereof)
          shall be paid by you; provided, however, that if this Agreement
          shall be terminated in accordance with the provisions of Section
          6, 7 or 9 hereof, the Company shall reimburse you for the amount
          of such fees and disbursements.  The Company shall not be
          required to pay any amount for any of your expenses except as
          provided in the preceding sentence.  The Company shall not in any
          event be liable to any of you for damages on account of the loss
          of anticipated profits.

                    6.  Conditions of Your Obligations to Purchase the
                        ----------------------------------------------
           Securities.  Your several obligations to purchase and pay for
          -----------
          the Securities shall be subject to the accuracy in all material
          respects of the representations and warranties of the Company set
          forth in Section 1 hereof as of the date hereof, to the accuracy
          of the statements of officers of the Company made in any
          certificate given pursuant to the provisions hereof, to the per-
          formance by the Company of its obligations hereunder to be
          performed at or prior to the Time of Delivery, and to the follow-
          ing additional conditions:

                    (a)  (i)  No stop order suspending the effectiveness of
               the Registration Statement shall be in effect at the Time of
               Delivery; no order of the Commission directed to the
               adequacy or accuracy of any document incorporated by
               reference therein shall be in effect at such date; and no
               proceedings for any such purpose shall be pending before, or
               threatened by, the Commission on such date, and you shall
               have received a certificate dated the Time of Delivery and
               signed by an executive officer of the Company to the effect
               that no such order is in effect and that no proceedings for
               any such purpose are pending before, or to the knowledge of
               the Company threatened by, the Commission; (ii) there shall
               not have been any change in the capital stock of the Company
               nor any material increase in the short-term or long-term
               debt of the Company (other than in the ordinary course of
               business) from that set forth or contemplated in the
               Registration Statement or the Prospectus (or any amendment
               or supplement thereto); (iii) there shall not have been,
               since the respective dates as of which information is given
               in the Registration Statement and the Prospectus (or any
               amendment or supplement thereto), except as may otherwise be
               stated in the Registration Statement and Prospectus (or any
               amendment or supplement thereto), any material adverse
               change in the business, property, financial condition or
               results of operations of the Company and its subsidiaries
               taken as a whole; and (iv) the Company and its subsidiaries
               shall not have any liabilities or obligations, direct or
               contingent (whether or not in the ordinary course of
               business), that are material to the Company and its
               subsidiaries taken as a whole, other than those reflected in
               the Registration Statement or the Prospectus (or any
               amendment or supplement thereto).  

                    (b)  At the Time of Delivery, there shall be in full
               force and effect orders of the Public Utility Commission of
               Oregon authorizing and of the Washington Utilities and
               Transportation Commission establishing compliance with
               applicable statutory provisions with respect to the issuance
               and sale of the New Common Stock on the terms and conditions
               herein set forth, and containing no provision unacceptable
               to you by reason of the fact that it is materially adverse
               to the Company (it being understood that no order in effect
               on the date hereof contains any such unacceptable
               provision).

                    (c)  At the Time of Delivery, you shall have received
               from Mark S. Dodson, Esq., General Counsel of the Company,
               Reid & Priest LLP, of counsel to the Company, and Simpson
               Thacher & Bartlett, your counsel, opinions, dated the Time
               of Delivery, in substantially the form and substance
               prescribed in Exhibits A, B and C hereto.

                    (d)  At the Time of Delivery, Price Waterhouse LLP
               shall have furnished to you a letter, dated the Time of
               Delivery, to the effect that:

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

                         (ii)  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;

                         (iii)  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, 1997,
                    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) any material modifications should be
                         made to the unaudited condensed consolidated
                         financial statements incorporated by reference in
                         the Registration Statement for them to be in
                         conformity with generally accepted accounting
                         principles, or (2) the unaudited condensed
                         consolidated financial statements incorporated by
                         reference in the Registration Statement do not
                         comply with the applicable accounting requirements
                         of the Exchange Act as they apply to Form 10-Q and
                         the related published rules and regulations; 

                              (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
                         issued under the Company's Dividend Reinvestment
                         and Stock Purchase Plan, 1985 Stock Option Plan or
                         Employee Stock Purchase Plan or a successor to any
                         such plan, (II) Shares issued upon the conversion
                         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 refer-
                         ence 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 avail-
                         able, 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

                         (iv)  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.

                    (e)  At the Time of Delivery, you shall have received a
               certificate, dated the Time of Delivery and signed by an
               executive officer of the Company, to the effect that (i) the
               Company's representations and warranties set forth in
               Section 1 hereof are true and correct at and as of the Time
               of Delivery with the same effect as if made at and as of the
               Time of Delivery; provided, that, (A) if any post-effective
               amendment to the Registration Statement shall have been
               filed subsequent to the date hereof, the Registration State-
               ment referred to in Section 1(b) hereof shall be deemed, for
               the purposes of such certificate, to include such amendment,
               (B) if the Prospectus Supplement shall have been filed
               pursuant to Rule 424 under the Act, the Prospectus referred
               to in Sections 1(b), (c), (e), (f) and (g) hereof shall be
               deemed, for the purposes of such certificate, to be the
               Prospectus as so supplemented, and (C) the Company's
               representations and warranties with respect to the accuracy
               and sufficiency of the Prospectus shall not apply to any
               statements or omissions in the Prospectus Supplement made in
               reliance upon and in conformity with the information
               furnished in writing to the Company, by or on behalf of you,
               specifically for use therein, (ii) the Company has performed
               all of its obligations hereunder to be performed at or prior
               to the Time of Delivery, (iii) if the Company shall have
               been required to file the Prospectus Supplement with the
               Commission pursuant to Rule 424(b) under the Act, the
               Company has done so, and (iv) the orders described in
               Section 6(b) hereof are in full force and effect.

                    (f)  All legal proceedings to be taken in connection
               with the issuance and sale of the Securities shall be
               satisfactory in form and substance to your counsel.

                    (g)  There shall not have been any announcement by any
               "nationally recognized statistical rating organization", as
               defined for purposes of Rule 436(g) under the Act, that (i)
               it is downgrading its rating assigned to any debt securities
               or preferred or preference stock of the Company, or (ii) it
               is reviewing its rating assigned to, or placing on credit
               watch, any debt securities or preferred or preference stock
               of the Company with a view to downgrading, or with negative
               implications, or direction not determined.  

                    (h)  Subsequent to the date of this Agreement, there
               shall not have occurred (i) any material change in or
               affecting the business, properties, financial condition or
               results of operations of the Company and its subsidiaries
               taken as a whole not contemplated by the Prospectus or any
               amendment or supplement thereto (including the documents
               incorporated by reference therein at the date thereof),
               which in your opinion, would materially and adversely affect
               the market for the Securities, or (ii) any event or
               development relating to or involving the Company or any
               officer or director of the Company which makes any statement
               made in the Prospectus or any amendment or supplement
               thereto (including the documents incorporated by reference
               therein at the date thereof) untrue or which, in the opinion
               of the Company and its counsel or you and your counsel,
               requires the making of any addition to or change in the
               Prospectus or any amendment or supplement thereto in order
               to state a material fact required by the Act to be stated
               therein or necessary in order to make the statements therein
               not misleading, if amending or supplementing the Prospectus
               to reflect such event or development would, in your opinion,
               adversely affect the market for the Securities.

                    (i)  The Securities shall be approved for trading, or
               shall be capable of being traded, in the Nasdaq National
               Market.

                    In case any of the conditions specified above in this
          Section 6 shall not have been fulfilled at the Time of Delivery,
          this Agreement may be terminated by one or more of you which have
          agreed to purchase, in the aggregate, 50% or more of the
          Securities, upon notice thereof to the Company.  Any such
          termination shall be without liability of any party to any other
          party, except as otherwise provided in Section 5 hereof.

               6A.  Conditions to Your Obligations to Purchase Option
                    -------------------------------------------------
           Shares.  Your several obligations to purchase and pay for the 
          -------
          Option Shares shall be subject to the accuracy in all material
          respects of the representations and warranties of the Company set
          forth in Section 1 hereof as of the date hereof, to the accuracy
          of the statements of the officers of the Company made in any
          certificate given pursuant to the provisions hereof, to the per-
          formance by the Company of its obligations hereunder to be
          performed at or prior to the Option Shares Time of Delivery, and
          to the following additional conditions:

                    (a)  (i)  No stop order suspending the effectiveness of
               the Registration Statement shall be in effect at the Option
               Shares Time of Delivery; no order of the Commission directed
               to the adequacy or accuracy of any document incorporated by
               reference therein shall be in effect at such date; and no
               proceedings for any such purpose shall be pending before, or
               threatened by, the Commission on such date, and you shall
               have received a certificate dated the Option Shares Time of
               Delivery and signed by an executive officer of the Company
               to the effect that no such order is in effect and that no
               proceedings for any such purpose are pending before, or to
               the knowledge of the Company threatened by, the Commission;
               (ii) there shall not have been any change in the capital
               stock of the Company nor any material increase in the short-
               term or long-term debt of the Company (other than in the
               ordinary course of business) from that set forth or
               contemplated in the Registration Statement or the Prospectus
               (or any amendment or supplement thereto); (iii) there shall
               not have been, since the respective dates as of which
               information is given in the Registration Statement and the
               Prospectus (or any amendment or supplement thereto), except
               as may otherwise be stated in the Registration Statement and
               Prospectus (or any amendment or supplement thereto) any
               material adverse change in the business, property, financial
               condition or results of operations of the Company and its
               subsidiaries taken as a whole; (iv) the Company and its
               subsidiaries shall not have any liabilities or obligations,
               direct or contingent (whether or not in the ordinary course
               of business), that are material to the Company and its
               subsidiaries taken as a whole, other than those reflected in
               the Registration Statement or the Prospectus (or any
               amendment or supplement thereto).

                    (b)  At the Option Shares Time of Delivery there shall
               be in full force and effect orders of the Public Utility
               Commission of Oregon authorizing and of the Washington
               Utilities and Transportation Commission establishing
               compliance with applicable statutory provisions with respect
               to the issuance and sale of the New Common Stock on the
               terms and conditions herein set forth, and containing no
               provision unacceptable to you by reason of the fact that it
               is materially adverse to the Company (it being understood
               that no order in effect on the date hereof contains any such
               unacceptable provision).

                    (c)  At the Option Shares Time of Delivery, you shall
               have received from Mark S. Dodson, Esq., General Counsel of
               the Company, Reid & Priest LLP, of counsel to the Company,
               and Simpson Thacher & Bartlett, your counsel, opinions,
               dated the Option Shares Time of Delivery, with respect to
               the Option Shares in substantially the form and substance
               prescribed in Exhibits A, B and C hereto.

                    (d)  At the Option Shares Time of Delivery, Price
               Waterhouse LLP shall have furnished to you a letter, dated
               the Option Shares Time of Delivery, to the effect set forth
               in Section 6(d) hereof.

                    (e)  At the Option Shares Time of Delivery, you shall
               have received a certificate, dated the Option Shares Time of
               Delivery and signed by an executive officer of the Company,
               to the effect that (i) the Company's representations and
               warranties set forth in Section 1 hereof are true and
               correct at and as of the Option Shares Time of Delivery with
               the same effect as if made at and as of the Option Shares
               Time of Delivery; provided, that, (A) if any post-effective
               amendment to the Registration Statement shall have been
               filed subsequent to the date hereof, the Registration
               Statement referred to in Section 1(b) hereof shall be
               deemed, for the purposes of such certificate, to include
               such amendment, (B) if the Prospectus Supplement shall have
               been filed pursuant to Rule 424 under the Act, the
               Prospectus referred to in Sections 1(b), (c), (e), (f) and
               (g) hereof shall be deemed, for the purposes of such
               certificate, to be the Prospectus as so supplemented, and
               (C) the Company's representations and warranties with
               respect to the accuracy and sufficiency of the Prospectus
               shall not apply to any statements or omissions in the
               Prospectus Supplement made in reliance upon and in
               conformity with the information furnished in writing to the
               Company, by or on behalf of you, specifically for use
               therein, (ii) the Company has performed all of its obliga-
               tions hereunder to be performed at or prior to the Option
               Shares Time of Delivery, (iii) if the Company shall have
               been required to file the Prospectus Supplement with the
               Commission pursuant to Rule 424(b) under the Act, the
               Company has done so, and (iv) the orders described in
               Section 6A(b) hereof are in full force and effect.

                    (f)  All legal proceedings to be taken in connection
               with the issuance and sale of the Securities shall be
               satisfactory in form and substance to your counsel.

                    (g)  There shall not have been any announcement by any
               "nationally recognized statistical rating organization", as
               defined for purposes of Rule 436(g) under the Act, that (i)
               it is downgrading its rating assigned to any debt securities
               or preferred or preference stock of the Company, or (ii) it
               is reviewing, or placing on credit watch, its rating
               assigned to any debt securities or preferred or preference
               stock of the Company with a view to possible downgrading, or
               with negative implications, or direction not determined.

                    (h)  Subsequent to the date of this Agreement, there
               shall not have occurred (i) any material change in or
               affecting the business, properties, financial condition or
               results of operations of the Company and its subsidiaries
               taken as a whole not contemplated by the Prospectus or any
               amendment or supplement thereto (including the documents
               incorporated by reference therein at the date thereof),
               which in your opinion, would materially and adversely affect
               the market for the Securities, or (ii) any event or
               development relating to or involving the Company or any
               officer or director of the Company which makes any statement
               made in the Prospectus or any amendment or supplement
               thereto (including the documents incorporated by reference
               therein at the date thereof), untrue or which, in the
               opinion of the Company and its counsel or you and your
               counsel, requires the making of any addition to or change in
               the Prospectus or any amendment or supplement thereto in
               order to state a material fact required by the Act to be
               stated therein or necessary in order to make the statements
               therein not misleading, if amending or supplementing the
               Prospectus, to reflect such event or development would, in
               your opinion, adversely affect the market for the
               Securities.

                    (i)  The Securities shall be approved for trading, or
               shall be capable of being traded, in the Nasdaq National
               Market.

                    In case any of the conditions specified above in this
               Section 6A shall not have been fulfilled at the Option
               Shares Time of Delivery, this Agreement may be terminated as
               to the parties' obligations in respect of the Option Shares
               by one or more of you which have agreed to purchase, in the
               aggregate, 50% or more of the Securities, upon notice
               thereof to the Company.  Any such termination shall be
               without liability of any party to any other party, except as
               otherwise provided in Section 5 hereof.

                    7.  Conditions of Company's Obligation.  The obligation
                        ----------------------------------
          of the Company to deliver the Firm Shares at the Time of Delivery
          and the Option Shares at the Option Shares Time of Delivery shall
          be subject to the following conditions:

                    (a)  No stop order suspending the effectiveness of the
               Registration Statement shall be in effect at the Time of
               Delivery or the Option Shares Time of Delivery, as the case
               may be; no order of the Commission directed to the adequacy
               or accuracy of any document incorporated by reference
               therein shall be in effect at such date; and no proceedings
               for any such purpose shall be pending before, or threatened
               by, the Commission on such date.

                    (b)  At the Time of Delivery or the Option Shares Time
               of Delivery, as the case may be, there shall be in full
               force and effect orders of the Public Utility Commission of
               Oregon authorizing and of the Washington Utilities and
               Transportation Commission establishing compliance with
               applicable statutory provisions with respect to the issuance
               and sale of the New Common Stock on the terms and conditions
               herein set forth, and containing no provisions unacceptable
               to the Company by reason of the fact that it is materially
               adverse to the Company (it being understood that no order in
               effect on the date hereof contains any such unacceptable
               provision).

                    In case any of the conditions specified above in this
          Section 7 shall not have been fulfilled at the Time of Delivery
          or the Option Shares Time of Delivery, as the case may be, this
          Agreement may be terminated by the Company, upon notice thereof
          to you.  Any such termination shall be without liability of any
          party to any other party, except as otherwise provided in Section
          5 hereof.

                    8.  Indemnifications.
                        ----------------

                    (a)  The Company agrees to indemnify and hold harmless
               each of you and each person who controls any of you within
               the meaning of Section 15 of the Act against any and all
               losses, claims, damages or liabilities, joint or several, to
               which you and they or any of you or them may become subject
               under the Act, the Exchange Act or any other statute or
               common law, and to reimburse each of you and each such
               controlling person for any legal or other expenses (includ-
               ing, to the extent hereinafter provided, reasonable counsel
               fees) incurred by you or them in connection with
               investigating any such losses, claims, damages or liabili-
               ties or in connection with defending any actions, insofar as
               such losses, claims, damages, liabilities, expenses or
               actions arise out of or are based upon any untrue statement
               or alleged untrue statement of a material fact contained in
               the Registration Statement or Prospectus as amended or
               supplemented (if any amendments or supplements thereto shall
               have been furnished) or 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;
               provided, however, that the indemnity agreement contained in
               this subsection (a) shall not apply to any such losses,
               claims, damages, liabilities, expenses or actions arising
               out of, or based upon, any such untrue statement or alleged
               untrue statement, or any such omission or alleged omission,
               if such statement or omission was made in reliance upon
               written information furnished to the Company by or on behalf
               of any of you specifically for use in connection with the
               preparation of the Registration Statement, the Prospectus 
               or any amendment or supplement to either thereof; and
               provided, further, that the indemnity agreement contained in
               this paragraph shall not inure to the benefit of any of you
               (or of any of your controlling persons) on account of any
               losses, claims, damages, liabilities, expenses or actions
               arising from the sale of any of the Securities to any person
               if a copy of the Prospectus, as amended or supplemented (if
               any amendments or supplements thereto shall have been
               furnished), excluding any document incorporated by reference
               therein, shall not have been sent or given to such person
               with or prior to the written confirmation of the sale
               involved, unless such failure is the result of non-
               compliance by the Company with Section 5(a) hereof.  The
               indemnity agreement of the Company contained in this Section
               8(a) and the representations and warranties of the Company
               contained in Section 1 hereof shall remain operative and in
               full force and effect, regardless of any investigation made
               by or on behalf of any of you or any such controlling per-
               son, and shall survive the delivery of the Securities.  The
               indemnity agreement of the Company contained in this Section
               8(a) shall be in addition to any liability which the Company
               may otherwise have to an indemnified party hereunder.

                    (b)  Each of you, severally, agrees to indemnify and
               hold harmless the Company, its directors, each of its
               officers who shall have signed the Registration Statement
               and each person who controls the Company within the meaning
               of Section 15 of the Act against any and all losses, claims,
               damages or liabilities, joint or several, to which they or
               any of them may become subject under the Act, the Exchange
               Act or any other statute or common law, and to reimburse
               each of them for any legal or other expenses (including, to
               the extent hereinafter provided, reasonable counsel fees)
               incurred by them in connection with investigating any such
               losses, claims, damages or liabilities or in connection with
               defending any action, insofar as such losses, claims,
               damages, liabilities, expenses or actions arise out of or
               are based upon any untrue statement or alleged untrue state-
               ment of a material fact contained in the Registration State-
               ment or Prospectus as amended or supplemented (if any
               amendments or supplements thereto shall have been furnished)
               or 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, if such
               statement or omission was made in reliance upon written
               information furnished to the Company by or on behalf of any
               of you specifically for use in connection with the prepa-
               ration of the Registration Statement, the Prospectus or any
               amendment or supplement to either thereof.  Your respective
               indemnity agreements contained in this Section 8(b) and the
               representations and warranties of each of you which shall
               have signed this Agreement contained in Section 12 hereof
               shall remain operative and in full force and effect,
               regardless of any investigation made by or on behalf of the
               Company or any such director, officer or controlling person,
               and shall survive the delivery of the Securities.  The
               indemnity agreement of each of you contained in this Section
               8(b) shall be in addition to any liability which you may
               otherwise have to an indemnified party hereunder.

                    (c)  Each of the Company and you, severally, agrees
               that, upon the receipt of notice of the commencement of any
               action against it, any of its directors or officers, or any
               person controlling it as aforesaid, in respect of which
               indemnity may be sought on account of any indemnity
               agreement contained herein, it will promptly give a notice
               of the commencement thereof to the party or parties against
               whom indemnity shall be sought hereunder, but the omission
               so to notify such indemnifying party or parties  of any such
               action shall not relieve such indemnifying party or parties
               from any liability which it or they may have to the
               indemnified party otherwise than on account of such
               indemnity agreement.  In case such notice of any such action
               shall be so given, such indemnifying party shall be entitled
               to participate at its own expense in the defense or, if it
               so elects, to assume (in conjunction with any other
               indemnifying parties) the defense of such action, in which
               event such defense shall be conducted by counsel chosen by
               such indemnifying party or parties.  If the indemnifying
               party shall elect to assume the defense of such action, any
               indemnified party or parties who shall be defendant or de-
               fendants in such action shall have the right to employ
               separate counsel in any such action and participate in the
               defense thereof, but the fees and expenses of such counsel
               retained by it or them shall be at the expense of such
               indemnified party or parties unless (i) the employment of
               such counsel has been specifically authorized in writing by
               the indemnifying party or parties or (ii) counsel chosen by
               the indemnifying party or parties as aforesaid shall not be
               satisfactory to the indemnified party or parties or shall
               for any reason be unable to act for or continue to act for
               such indemnified party or parties; provided, however, that
               in any case or cases to which the foregoing clause (ii)
               shall apply, the indemnifying party or parties shall not, in
               connection with any one such action or separate but
               substantially similar or related actions in the same
               jurisdiction arising out of the same general allegations or
               circumstances, be liable for the reasonable fees and
               expenses of more than one separate firm of attorneys for all
               such indemnified parties, which firm shall be chosen by the
               indemnified party or parties and satisfactory to the
               indemnifying party or parties.  If the indemnifying party
               shall elect not to assume the defense of such action, such
               indemnifying party will reimburse such indemnified party or
               parties for the reasonable fees and expenses of any counsel
               retained by them.

                    (d)  In order to provide for just and equitable
               contribution in circumstances in which the indemnification
               provided for in Sections 8(a) or (b) hereof shall be due in
               accordance with its terms but for any reason shall be
               unavailable or insufficient to hold any indemnified party
               thereunder harmless in respect of any losses, claims,
               damages or liabilities referred to therein, the Company and
               each of you severally shall contribute to the aggregate
               losses, claims, damages and liabilities to which the Company
               and one or more of you may be subject, as a result of such
               losses, claims, damages or liabilities, in such proportion
               as is appropriate to reflect the relative fault of the
               Company on the one hand and each of you on the other in con-
               nection with the statements or omissions which resulted in
               such losses, claims, damages or liabilities as well as any
               other equitable considerations, including, with respect only
               to any losses, claims, damages or liabilities referred to in
               Section 8(a) hereof, relative benefit.  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
               relates to information supplied by the Company, on the one
               hand, or you, on the other, and the parties' relative
               intent, knowledge and 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 you on the other shall be deemed to be in the same pro-
               portion as the total net proceeds from the offering of the
               Securities (before deducting expenses) received by the
               Company bear to the total underwriting discounts and
               commissions received by you with respect to the offering of
               the Securities.  Notwithstanding the foregoing, 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 Company and you agree
               that it would not be just and equitable if contribution
               pursuant to this Section 8(d) were determined (i) by any
               method of allocation which does not take account of the
               equitable considerations referred to above in this Section
               8(d), or (ii) with respect only to any losses, claims,
               damages or liabilities referred to in Section 8(a) hereof,
               by pro rata allocation (even if you were treated as one
               entity for such purpose).  The amount paid or payable by a
               party entitled to contribution as a result of the losses,
               claims, damages or liabilities referred to above in this
               Section 8(d) shall be deemed to include any legal or other
               expenses reasonably incurred by such party in connection
               with investigating or defending any such action or claim. 
               For purposes of this Section 8(d), each person, if any, who
               controls any of you within the meaning of Section 15 of the
               Act shall have the same rights to contribution as you, and
               each director and officer of the Company who shall have
               signed the Registration Statement and each person, if any,
               who controls the Company within the meaning of Section 15 of
               the Act shall have the same rights to contribution as the
               Company, subject, in each case, to the fourth sentence of
               this Section 8(d).

                    9.  Termination.
                        -----------

                    (a)  This Agreement shall be subject to termination at
               any time prior to the Time of Delivery, or your exercise of
               the Option may be rescinded at any time prior to the Option
               Shares Time of Delivery, in your absolute discretion, upon 
               notice thereof to the Company, if prior to the Time of
               Delivery or the Option Shares Time of Delivery, as the case
               may be, (i) trading in securities generally on the New York
               Stock Exchange, American Stock Exchange or Nasdaq National
               Market shall have been suspended or materially limited, (ii)
               a general moratorium on commercial banking activities in New
               York or Oregon shall have been declared by either Federal or
               state authorities, or (iii) there shall have occurred any
               outbreak or escalation of hostilities or other international
               or domestic calamity, crisis or change in political,
               financial or economic conditions, the effect of which on the
               financial markets of the United States is such as to make
               it, in your judgment, impracticable or inadvisable to
               commence or continue the offering of the Securities at the
               offering price to the public set forth on the cover page of
               the Prospectus (or any amendment or supplement thereto) or
               to enforce contracts for the resale of the Securities by
               you.  This Agreement may also be terminated at any time
               prior to the Time of Delivery, or your exercise of the
               Option may be rescinded at any time prior to the Option
               Shares Time of Delivery, upon notice thereof to the Company
               if, in the judgment of one or more of you which have agreed
               to purchase 50% or more of the Securities, the subject
               matter of any amendment or supplement to the Registration
               Statement or the Prospectus renders it either inadvisable to
               proceed with the public offering of the Securities or inad-
               visable to proceed with the delivery of the Securities to be
               purchased hereunder.  Any termination of this Agreement
               pursuant to this Section 9 shall be without liability of any
               party to any other party, except as otherwise provided in
               Section 5 hereof.

                    (b)  Notwithstanding any termination of this Agreement
               pursuant to this Section 9, the provisions of Section 8
               hereof shall remain in effect.

                    10.  Notices.  All statements, requests, notices and 
                         -------
          agreements hereunder shall be in writing or by telephone if
          confirmed in writing within 24 hours, and if to you, shall be
          sufficient in all respects if delivered or sent by registered
          mail either to you at your address given on the last page hereof
          or, if this Agreement shall have been executed on your behalf by
          a representative as provided in Section 13 hereof, to your
          representative at its address given on the last page hereof; and
          if to the Company shall be sufficient in all respects if
          delivered or sent by registered mail to Northwest Natural Gas
          Company, One Pacific Square, 220 N.W. Second Avenue, Portland,
          Oregon 97209, Attention:  Treasurer and Controller; provided,
          however, that any notice to any of you pursuant to Section 8(c)
          hereof shall be delivered or sent by registered mail to such
          party at its principal executive offices.

                    11.  Information for Use in Prospectus.  The 
                         ---------------------------------
          information specified in Schedule I hereto shall be deemed to
          have been furnished in writing to the Company by you specifically
          for use therein.

                    12.  Representations and Warranties of Representatives
                         -------------------------------------------------
           of the Underwriters.  Each of the undersigned, if any, which has
          --------------------
          signed this Agreement as representative of the several
          Underwriters represents and warrants to the Company that it has
          full power and authority (a) to enter into this Agreement on
          behalf of each of the Underwriters listed in Schedule I hereto,
          and (b) to act on behalf of each of them with respect to the per-
          formance of this Agreement.  In all dealings hereunder, the
          Company shall be entitled to act and rely upon any statement,
          request, notice or agreement on behalf of all of you made or
          given either by all of such undersigned representatives jointly
          or by any of such undersigned representatives individually.

                    13.  Miscellaneous.
                         -------------

                    (a) This Agreement shall be binding upon, and inure
               solely to the benefit of, you, the Company and, to the ex-
               tent provided in Section 8 hereof, the directors and
               officers of the Company and each person who controls the
               Company or any of you, and their respective heirs,
               executors, administrators, successors and assigns, and no
               other person shall acquire or have any right under or by
               virtue of this Agreement.  No purchaser of any of the
               Securities from any of you shall be deemed a successor or
               assign by reason merely of such purchase.

                    (b)  This Agreement shall be construed in accordance
               with the laws of the State of New York applicable to
               contracts made and to be performed in the State of New York.

                    (c)  This Agreement may be executed by any one or more
               of the parties hereto in any number of counterparts, each of
               which shall be deemed to be an original, but all such
               counterparts shall together constitute one and the same
               instrument.

                    (d)  This Agreement has been prepared upon the
               assumption that there will be more than one Underwriter
               purchasing the Securities.  Consequently, if there should be
               only one Underwriter named in Schedule I hereto, this
               Agreement shall be read in that light.

                    (e)  As used in this Agreement, the term "business day"
               shall mean any day, other than a Saturday or Sunday, on
               which banks are open for business in the City of New York.

                    If the foregoing is in accordance with your
          understanding, please sign and return to us the counterparts
          hereof enclosed, and upon the acceptance hereof by you, this
          letter and such acceptance hereof shall constitute a binding
          agreement between you and the Company.

                                   Very truly yours,

                                   NORTHWEST NATURAL GAS COMPANY


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

                                   Title:
                                         -------------------------------



          ACCEPTED at New York, New York,
          as of the date first above written.


          By:  [<bullet>]




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

          Address:  [<bullet>]


          By:  [<bullet>]



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

          Address:  [<bullet>]


          By:  [<bullet>]



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

          Address:  [<bullet>]



          For themselves and as Representatives of the
          other Underwriters named in Schedule I to this 
          Underwriting Agreement.


     <PAGE>
                                      SCHEDULE I

                                                       Amounts of Shares
                                                        to be Purchased 
                                                       ------------------
               Underwriters                                         
               ------------
           




                                                                      
                                                            ----------

                         Total              
                                                            ==========







          Information in the Prospectus Supplement deemed furnished 
          ---------------------------------------------------------
          pursuant to Section 11 of the Agreement:
          ---------------------------------------

               The information with respect to the price to the public of
          the Firm Shares and the Option Shares to be set forth on, and the
          information to be set forth in the last paragraph of, the cover
          page, the legends on the inside front cover page and the
          information to be set forth in the [<bullet>] paragraphs under
          the table under the caption "Underwriting".


     <PAGE>

                                                                  EXHIBIT A

                         [LETTERHEAD OF MARK S. DODSON, ESQ.]






                                                           [<bullet>], 1998

          [REPRESENTATIVES]
          As Representatives of the other
          several Underwriters named in Schedule I
          to the Underwriting Agreement
          dated [<bullet>], 1998
          c/o [<bullet>] 



          Dear Sirs:

                    With reference to the issuance and sale by Northwest
          Natural Gas Company (the "Company") pursuant to the  Underwriting 
          Agreement, dated [<bullet>], 1998 (the "Agreement"), between the
          Company and you of [<bullet>] shares of the Company's Common
          Stock, $3-1/6 par value (the "Common Stock"), and the common
          share purchase rights appurtenant thereto (the "Rights" and,
          together with the Common Stock, the "Shares") please be advised
          that, as General Counsel of the Company, I have participated in
          the preparation of or reviewed (a) the registration statement re-
          lating to the Shares filed by the Company with the Securities and
          Exchange Commission (the "Commission") under the Securities Act
          of 1933 (the "Securities Act") (such registration statement, as
          it became effective, being hereinafter called the "Registration
          Statement"), (b) the prospectus, dated [<bullet>], 1998,
          constituting a part of the Registration Statement, including the
          documents incorporated therein by reference pursuant to Item 12
          of Form S-3 on the date hereof, as supplemented by the prospectus
          supplement, dated [<bullet>], 1998, filed with the Commission
          pursuant to Rule 424(b) under the Securities Act (together, the
          "Prospectus"); (c) the proceedings before the Public Utility
          Commission of Oregon (the "OPUC") and the Washington Utilities
          and Transportation Commission (the "WUTC") with respect to the
          issuance and sale of the Common Stock and the order or orders for
          the issuance and sale of Common Stock entered by such Commissions
          in respect thereto; (d) the Restated Articles of Incorporation of
          the Company, its Bylaws, the Rights Agreement dated February 27,
          1996 between the Company and Boatmen's Trust company (ChaseMellon
          Shareholder Services, successor) (the "Rights Agreement") and the
          actions taken by its Board of Directors and the Executive
          Committee thereof authorizing the issuance and sale of the
          Shares; and (e) such other matters as I have deemed to be
          necessary to enable me to render the opinions herein expressed. 
          I have not examined the Shares, except a specimen thereof, and
          have relied upon a certificate of the transfer agent and the
          registrar for the Shares as to the issuance, registration and
          countersignature thereof.

                    In my examination of the documents referred to above, I
          have assumed the authenticity of all such documents submitted to
          me as originals, the genuineness of all signatures, the due
          authority of the persons executing such documents and the
          conformity to the originals of all documents submitted to me as
          copies.  

                    Based upon the foregoing, 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 Registration Statement.

                     3.  All of the outstanding shares of capital stock of
               the Company have been duly and validly authorized and issued
               and are fully paid and non-assessable.

                     4.  The Shares have been duly and validly authorized;
               when the shares of Common Stock shall have been delivered
               against payment therefor as provided in the Agreement, they
               will have been duly and validly issued and will be fully
               paid and non-assessable; and when the Rights shall have been
               issued in accordance with the Rights Agreement, they will
               have been duly and validly issued.

                     5.  The Shares conform as to legal matters with the
               description thereof contained in the Prospectus.

                     6.  The Registration Statement has become, and on the
               date hereof is, effective under the Securities Act, and, to
               the best of my knowledge, no proceedings for a stop order
               with respect thereto are pending under Section 8 of the
               Securities Act, and no order directed to the adequacy or
               accuracy of any document incorporated by reference in the
               Registration Statement or Prospectus has been issued by the
               Commission.

                     7.  The OPUC has issued one or more orders authorizing
               and the WUTC has issued one or more orders establishing
               compliance with applicable statutory provisions with respect
               to the issuance and sale by the Company of the Common Stock;
               the issuance and sale of the Common Stock in accordance with
               the Agreement are in conformity with the terms of such
               orders; and no further approval, authorization, consent or
               other order of any public board or body (other than in con-
               nection 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 Shares on the
               terms and conditions set forth in the Agreement.

                     8.  The Agreement has been duly and validly au-
               thorized, executed and delivered by or on behalf of the Com-
               pany.

                     9.  There are no legal, governmental or administrative
               proceedings pending to which the Company is a party or of
               which any property of the Company is the subject, other than
               as set forth in the Prospectus and other than proceedings
               incident to the kind of business conducted by the Company,
               the outcome of which would not singly or in the aggregate
               have a materially adverse effect on the financial position,
               stockholders' equity or results of operations of the
               Company; and, to the best of my knowledge, no such
               proceedings are threatened or contemplated by governmental
               authorities or threatened by others.

                     10.  The statements made in the Prospectus as to
               matters of law and legal conclusions which, as stated
               therein, have been set forth therein on my authority as an
               expert have been reviewed by me and are correct; and the
               descriptions of legal and governmental proceedings contained
               in the Prospectus are, to the best of my knowledge, accurate
               and fairly present the information required to be shown
               therein.

                     11.  The consummation of the transactions contemplated
               in the Agreement and the fulfillment of the terms thereof
               will not result in a breach of any of the terms or
               provisions of, or constitute a default under, any statute,
               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, or the Restated Articles of
               Incorporation or Bylaws of the Company or any order, rule or
               regulation of any court or other governmental body having
               jurisdiction over the Company or any of its property.

                    Based upon my examination of the Registration Statement
          and the Prospectus and my familiarity, as General Counsel of the
          Company, with its business and affairs, I have no reason to
          believe either that the Registration Statement, as of the date
          that it became effective, contained any 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 the Prospectus contains any 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, except
          that, in each case, no opinion or belief is expressed herein with
          respect to the financial statements or other financial data of
          the Company contained or incorporated by reference in the
          Registration Statement or the Prospectus.

                    I am a member of the bar of the State of Oregon, but
          not of the State of Washington.  In rendering this opinion, I
          have made such reviews of the laws of the State of Washington and
          had such consultations with the Company's Washington State
          counsel as I believe to be necessary to satisfy myself as to
          questions of Washington law.

                    I have read the opinions of even date herewith rendered
          to you by Reid & Priest LLP and Simpson Thacher & Bartlett, and I
          concur in the conclusions therein expressed, insofar as such con-
          clusions involve questions of Oregon and Washington law.

                    Reid & Priest LLP and Simpson Thacher & Bartlett, as to
          matters governed by the laws of the State of Oregon or the State
          of Washington, may rely upon this opinion as if it were addressed
          directly to each of them; it being understood, however, that this
          opinion may be relied upon by you and by them only in connection
          with the issuance and sale of the Shares.  This opinion may not
          be relied upon by you or by them for any other purpose, or relied
          upon by any other person without, in each instance, my prior
          written consent.


                                        Very truly yours,



                                        MARK S. DODSON


     <PAGE>


                                                                  EXHIBIT B

                          [LETTERHEAD OF REID & PRIEST LLP]

                                                           [<bullet>], 1998


          [REPRESENTATIVES]
          As Representatives of the other
          several Underwriters named in Schedule I
          to the Underwriting Agreement
          dated [<bullet>], 1998

          c/o  


          Ladies and Gentlemen:

                    With reference to the issuance and sale by Northwest
          Natural Gas Company (the "Company") pursuant to the  Underwriting 
          Agreement, dated [<bullet>], 1998 (the "Agreement"), between the
          Company and you of [<bullet>] shares of the Company's Common
          Stock, $3-1/6 par value ("Common Stock"), and the common share
          purchase rights appurtenant thereto (the "Rights" and, together
          with the Common Stock, the "Shares"), please be advised that, as
          counsel to the Company, we have participated in the preparation
          of or reviewed (a) the registration statement relating to the
          Shares filed by the Company with the Securities and Exchange
          Commission (the "Commission") under the Securities Act of 1933
          (the "Securities Act") (such registration statement, as it became
          effective, being hereinafter called the "Registration State-
          ment"), (b) the prospectus, dated [<bullet>], 1998, constituting
          a part of the Registration Statement, including the documents in-
          corporated therein by reference pursuant to Item 12 of Form S-3
          on the date hereof, as supplemented by the prospectus supplement,
          dated [<bullet>], 1998, filed with the Commission pursuant to
          Rule 424(b) under the Securities Act (together, the "Pro-
          spectus"); (c) the proceedings before the Public Utility
          Commission of Oregon (the "OPUC") and the Washington Utilities
          and Transportation Commission (the "WUTC") with respect to the
          issuance and sale of the Common Stock and the orders entered by
          such Commissions in respect thereto; (d) the Restated Articles of
          Incorporation of the Company, its Bylaws, the Rights Agreement
          dated February 27,1996 between the Company and Boatmen's Trust
          Company (ChaseMellon Shareholder Services, successor) (the
          "Rights Agreement") and the actions taken by its Board of
          Directors and the Executive Committee thereof authorizing the
          issuance and sale of the Shares; (e) and such other matters as we
          have deemed to be necessary to enable us to render the opinions
          herein expressed.  We have not examined the Shares, except a spe-
          cimen thereof, and have relied upon a certificate of the transfer
          agent and the registrar for the Shares as to the issuance,
          registration and countersignature thereof.

                    In our examination of the documents referred to above,
          we have assumed the authenticity of all such documents submitted
          to us as originals, the genuineness of all signatures, the due
          authority of the persons executing such documents and the
          conformity to the originals of all documents submitted to us as
          copies.  

                    Based upon the foregoing, 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 Shares have been duly and validly authorized;
               when the shares of Common Stock shall have been delivered
               against payment therefor as provided in the Agreement, they
               will have been duly and validly issued and will be fully
               paid and non-assessable; and when the Rights shall have been
               issued in accordance with the Rights Agreement, they will
               have been duly and validly issued.
                     
                    3.   The Shares conform as to legal matters with the
               description thereof contained in the Prospectus.

                    4.   The Registration Statement has become, and on the
               date hereof is, effective under the Securities Act, and, to
               the best of our knowledge, no proceedings for a stop order
               with respect thereto are pending under Section 8 of the
               Securities Act, and no order directed to the adequacy or
               accuracy of any document incorporated by reference in the
               Registration Statement or Prospectus has been issued by the
               Commission.

                    5.   The Registration Statement, as of its effective
               date, and the Prospectus, as of the time it was filed with
               the Commission pursuant to Rule 424(b), complied as to form
               in all material respects with the requirements of the
               Securities Act, and the rules and regulations thereunder,
               and the documents incorporated by reference in the Pro-
               spectus on the date hereof complied as to form in all
               material respects with the requirements of the Securities
               Exchange Act of 1934 and the rules and regulations
               thereunder at the respective times at which such documents
               were filed with the Commission, except that, in each case,
               we express no opinion with respect to the financial state-
               ments and other financial or statistical data contained or
               incorporated by reference in the Registration Statement or
               the Prospectus.
                     
                    6.   The OPUC has issued one or more orders authorizing
               and the WUTC has issued one or more order establishing
               compliance with applicable statutory provisions with respect
               to the issuance and sale by the Company of the Common Stock;
               the issuance and sale of the Common Stock in accordance with
               the Agreement are in conformity with the terms of such
               orders; 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 Shares on the
               terms and conditions set forth in the Agreement.

                     7.  The Agreement has been duly and validly au-
               thorized, executed and delivered by or on behalf of the Com-
               pany.

                    In passing upon the form of the Registration Statement
          and the Prospectus, we necessarily assume the correctness and
          completeness of the statements made therein by the Company and
          take no responsibility therefor, except as set forth in paragraph
          3 above.  In the course of the preparation by the Company of the
          Registration Statement, we had conferences with certain of its
          officers and employees, with the General Counsel of the Company
          and with Price Waterhouse LLP, the independent accountants.  Our
          examination of the Registration Statement and the Prospectus and
          our discussions in the above-mentioned conferences did not
          disclose to us any information which gives us reason to believe
          either that the Registration Statement, as of the date that it
          became effective, contained any 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 the Prospectus contains any 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, except
          that, in each case, no opinion or belief is expressed herein with
          respect to the financial statements or other financial or
          statistical data contained or incorporated by reference in the
          Registration Statement or the Prospectus.

                    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 States of
          Oregon and Washington.  As to all matters of Oregon and
          Washington law, we have relied, with your consent, upon an
          opinion addressed to you of even date herewith of Mark S. Dodson,
          Esq., General Counsel of the Company, whom we believe to be
          qualified to pass upon such matters.

                    This opinion may be relied upon by you and, as to
          matters governed by the laws of the State of New York, the
          Securities Act and the Securities Exchange Act of 1934, by Mr.
          Dodson, only in connection with the issuance and sale of the
          Shares.  This opinion may not be relied upon by you or him for
          any other purpose, or relied upon by any other person for any
          purpose, without, in each instance, our prior written consent.


                                        Very truly yours,

                                        REID & PRIEST LLP


     <PAGE>

                                                                  EXHIBIT C

                      [LETTERHEAD OF SIMPSON THACHER & BARTLETT]

                                             [<bullet>], 1998


          [REPRESENTATIVES]
          As Representatives of the other
          several Underwriters named in Schedule I
          to the Underwriting Agreement
          dated [<bullet>], 1998

          c/o  


          Ladies and Gentlemen:

                    We have acted as your counsel in connection with the
          purchase by you of [<bullet>] shares of Common Stock, par value $
          3-1/6 per share (the "Shares"), of Northwest Natural Gas Company,
          an Oregon corporation (the "Company"), pursuant to the
          underwriting agreement referred to above (the "Underwriting
          Agreement").

                    We have examined the Registration Statement on Form S-3
          (File No. 333-[<bullet>]) filed by the Company under the
          Securities Act of 1933, as amended (the "Act"), as it became
          effective under the Act (the "Registration Statement"); and the
          Company's prospectus, dated [<bullet>], 1998, as supplemented by
          the prospectus supplement, dated [<bullet>], 1998, (the
          "Prospectus"), filed by the Company pursuant to Rule 424(b) of
          the rules and regulations of the Securities and Exchange
          Commission (the "Commission") under the Act, which pursuant to
          Form S-3 incorporates by reference the Annual Report on Form 10-K
          of the Company for the fiscal year ended December 31, 1997, the
          Current Report on Form 8-K of the Company dated February 27,
          1998, and the Registration Statement on Form 8-A dated February
          27, 1996 (the "Exchange Act Documents"), each as filed under the
          Securities Exchange Act of 1934, as amended (the "Exchange Act"). 
          In addition, we have examined, and have relied as to matters of
          fact upon, the documents delivered to you at the closing (except
          the certificates representing the Shares, of which we have
          examined a specimen), and upon originals or copies, certified or
          otherwise identified to our satisfaction, of such corporate
          records, agreements, documents and other instruments and such
          certificates or comparable documents of public officials and of
          officers and representatives of the Company, and have made such
          other and further investigations, as we have deemed relevant and
          necessary as a basis for the opinions hereinafter set forth.

                    In such examination, we have assumed the genuineness of
          all signatures, the legal capacity of natural persons, 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.

                    Based upon the foregoing and subject to the
          qualifications and limitations stated herein, we are of the
          opinion that: 

                    1.  The Company has been duly incorporated and is
               validly existing and in good standing as a corporation under
               the laws of the State of Oregon.

                    2.  The Shares have been duly authorized by the Company
               and upon payment and delivery in accordance with the
               Underwriting Agreement will be validly issued, fully paid
               and non-assessable.

                    3.  The statements made in the Prospectus under the
               caption "Description of the Shares", insofar as they purport
               to constitute summaries of the terms of the Company's Common
               Stock constitute accurate summaries of the terms of such
               Common Stock in all material respects.

                    4.  The Underwriting Agreement has been duly
               authorized, executed and delivered by the Company.

                    All legal proceedings taken by the Company in
          connection with the authorization and offering of the Shares and
          the legal opinions dated the date hereof rendered to you by Mark
          S. Dodson, Esq., General Counsel of the Company, and Reid &
          Priest LLP, counsel for the Company, pursuant to the Underwriting
          Agreement, are in form satisfactory to us.  Insofar as the
          opinions expressed herein relate to or are dependent upon matters
          governed by the laws of the States of Oregon and/or Washington,
          we have relied upon the opinion of Mark S. Dodson, Esq.  We
          express no opinion on matters relating to titles to property,
          franchises or the lien of the Company's Mortgage and Deed of
          Trust, dated as of July 1, 1946, as supplemented, to Bankers
          Trust Company and Stanley Burg (successor Individual Trustee), as
          Trustees.

                    We have not independently verified the accuracy,
          completeness or fairness of the statements made or included in
          the Registration Statement, the Prospectus or the Exchange Act
          Documents and take no responsibility therefor, except as and to
          the extent set forth in paragraph 3 above.  In the course of the
          preparation by the Company of the Registration Statement and the
          Prospectus (excluding the Exchange Act Documents), we
          participated in conferences with certain officers and employees
          of the Company, with representatives of Price Waterhouse LLP and
          with counsel to the Company.  We did not prepare the Exchange Act
          Documents; however, we reviewed the Annual Report on Form 10-K of
          the Company for the fiscal year ended December 31, 1997 prior to
          its filing with the Commission.  Based upon our examination of
          the Registration Statement, the Prospectus and the Exchange Act
          Documents, our investigations made in connection with the
          preparation of the Registration Statement and the Prospectus
          (excluding the Exchange Act Documents) and our participation in
          the conferences referred to above, (i) we are of the opinion that
          the Registration Statement, as of its effective date, and the
          Prospectus, as of [<bullet>], 1998, complied as to form in all
          material respects with the requirements of the Act and the
          applicable rules and regulations of the Commission thereunder and
          that the Exchange Act Documents complied as to form when filed in
          all material respects with the requirements of the Exchange Act
          and the applicable rules and regulations of the Commission
          thereunder, except that in each case we express no opinion with
          respect to the financial statements or other financial or
          statistical data contained or incorporated by reference in the
          Registration Statement, the Prospectus or the Exchange Act
          Documents, and (ii) we have no reason to believe that the
          Registration Statement, as of its effective date (including the
          Exchange Act Documents on file with the Commission on such date),
          contained  any untrue statement of a material fact or omitted to
          state any material fact required to be stated therein or
          necessary in order to make the statements therein not misleading
          or that the Prospectus (including the Exchange Act Documents)
          contains any untrue statement of a material fact or omits 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, except that in each case we express no
          belief with respect to the financial statements or other
          financial or statistical data contained or incorporated by
          reference in the Registration Statement, the Prospectus or the
          Exchange Act Documents.

                    We are members of the Bar of the State of New York and
          we do not express any opinion herein concerning any law other
          than the law of the State of New York and the Federal law of the
          United States and, to the extent set forth herein and in reliance
          solely upon the aforesaid opinion of Mark S. Dodson, Esq., the
          laws of the States of Oregon and Washington.  

                    This opinion letter is rendered to you in connection
          with the above-described transactions.  This opinion letter may
          not be relied upon by you for any other purposes, or relied upon
          by, or furnished to, any other person, firm or corporation
          without our prior written consent.

                                        Very truly yours,

                                        SIMPSON THACHER & BARTLETT
                                        




                                    MARK S. DODSON             Exhibit 5(a)
                                   Attorney at law
                                220 N.W. Second Avenue
                               Portland, Oregon  97209




                                             March 19, 1998




          Northwest Natural Gas Company
          One Pacific Square
          220 N.W. Second Avenue
          Portland, Oregon  97209

          Dear Sirs:

                    With reference to the Registration Statement to be
          filed by the Company on or about the date hereof with the
          Securities and Exchange Commission under the Securities Act of
          1933, as amended, contemplating the issuance and sale from time
          to time by the Company of up to 2,500,000 additional shares of
          its Common Stock (New Stock) and the Common Share Purchase Rights
          appurtenant thereto (Rights), I am of the opinion that:

                    1.   The Company has been duly incorporated and is
          validly existing under the laws of the State of Oregon and is
          qualified to do business in the State of Washington.

                    2.   All action necessary to make the New Stock legally
          issued, fully paid and non-assessable and the Rights appurtenant
          to the New Stock legally issued will have been taken when:

                    (a)  the Registration Statement shall have become
                    effective;

                    (b)  the Company's Board of Directors or a duly
                    authorized committee thereof shall have taken
                    appropriate action with respect to the issuance and
                    sale of the New Stock;

                    (c)  the issuance of the New Stock shall have been
                    authorized by the Oregon Public Utility Commission and
                    the Washington Utilities and Transportation Commission
                    shall have issued an order establishing compliance with
                    applicable statutory provisions with respect to such
                    issuance;

                    (d)  the New Stock shall have been issued and delivered
                    for the consideration contemplated in the Registration
                    Statement; and 

                    (e)  the Rights appurtenant to the New Stock shall have
                    been issued in accordance with the terms of the Rights
                    Agreement dated as of February 27, 1996 between the
                    Company and Boatmen's Trust Company (ChaseMellon
                    Shareholder Services, successor).

                         I consent to the use of this opinion as an exhibit
          to the Registration Statement and to the use of my name, as
          counsel, therein.

                                             Very truly yours,

                                             /s/ Mark S. Dodson

                                             Mark S. Dodson, Esq.
                                             



                                                               Exhibit 5(b)


                            REID & PRIEST LLP
                           40 West 57th Street
                           New York, Ny  10019







                                             New York, New York
                                             March 19, 1998


          Northwest Natural Gas Company
          One Pacific Square
          220 N.W. Second Avenue
          Portland, Oregon  97209

          Dear Sirs:

                    With reference to the Registration Statement to be
          filed by the Company on or about the date hereof with the
          Securities and Exchange Commission (SEC) under the Securities Act
          of 1933, as amended (Act), contemplating the issuance and sale
          from time to time by the Company of up to 2,500,000 additional
          shares of its Common Stock (New Stock) and the Common Share
          Purchase Rights appurtenant thereto (Rights), we are of the
          opinion that:

                    1.   The Company has been duly incorporated and is
          validly existing under the laws of the State of Oregon.

                    2.   All action necessary to make the New Stock legally
          issued, fully paid and non-assessable and the Rights appurtenant
          to the New Stock legally issued will have been taken when:

                    (a)  the Registration Statement shall have become
                    effective;

                    (b)  the Company's Board of Directors or a duly
                    authorized committee thereof shall have taken
                    appropriate action with respect to the issuance and
                    sale of the New Stock;

                    (c)  the issuance of the New Stock shall have been
                    authorized by the Oregon Public Utility Commission and
                    the Washington Utilities and Transportation Commission
                    shall have issued an order establishing compliance with
                    applicable statutory provisions with respect to such
                    issuance;

                    (d)  the New Stock shall have been issued and delivered
                    for the consideration contemplated in the Registration
                    Statement; and

                    (e)  the Rights appurtenant to the New Stock shall have
                    been issued in accordance with the terms of the Rights
                    Agreement dated as of February 27, 1996 between the
                    Company and Boatmen's Trust Company (ChaseMellon
                    Shareholder Services, successor).

                    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 States of
          Oregon and Washington.  We have relied as to all matters governed
          by the laws of such States on the opinion of Mark S. Dodson,
          Esq., General Counsel for the Company, which is to be filed as an
          exhibit to the Registration Statement.

                    We consent to the use of this opinion as an exhibit to
          the Registration Statement and to the use of our name, as
          counsel, therein.  In giving the foregoing consent, we do not
          thereby admit that we belong to the category of persons whose
          consent is required under Section 7 of the Act, or the rules and
          regulations promulgated by the SEC thereunder.

                                             Very truly yours,

                                             /s/ Reid & Priest LLP

                                             REID & PRIEST LLP








          INDEPENDENT AUDITORS' CONSENT


          We consent to the incorporation by reference in this Registration
          Statement 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, 1997 and to the reference to us under the heading
          "Experts" in the Prospectus, which is part of this Registration
          Statement.


          /s/ Deloitte & Touche LLP

          DELOITTE & TOUCHE LLP

          March 19, 1998





                          CONSENT OF INDEPENDENT ACCOUNTANTS



          We hereby consent to the incorporation by reference in the

          Prospectus constituting part of this Registration Statement on

          Form S-3 of our report dated February 20, 1998, which appears on

          page 33 of Northwest Natural Gas Company's Annual Report on Form

          10-K for the year ended December 31, 1997.  We also consent to

          the reference to us under the headings "Experts" in such

          Prospectus.

                        

          /s/ Price Waterhouse LLP

          PRICE WATERHOUSE LLP

          Portland, Oregon
          March 19, 1998



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