EXHIBIT 10(C)


                                 AMENDMENT NO. 5

                                     TO THE

                          NORTHWEST NATURAL GAS COMPANY

                      EXECUTIVE DEFERRED COMPENSATION PLAN

                                1990 RESTATEMENT

     This Amendment No. 5 to the Northwest Natural Gas Company Executive
Deferred Compensation Plan, 1990 Restatement (the "Plan"), is effective as of
January 1, 2001 and has been executed as of this 28th day of September, 2000.

     The Plan is hereby amended as follows:

     FIRST: Section 2.17 is amended to read as follows:

          2.17 Interest. "Interest" means the quarterly equivalent of an annual
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     yield that is two percentage points (2%) higher than the annual yield on
     Moody's Average Corporate Bond Yield for the preceding quarter, as
     published by Moody's Investors Service, Inc. (or any successor thereto),
     or, if such index is no longer published, a substantially similar index
     selected by the Board. At no time shall the Interest Rate be less than six
     percent (6%) annually.

     SECOND: Section 3.2(a) is amended to read as follows:

          (a) Election by Executive. The Executive may, prior to the beginning
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     of any calendar year, elect to defer receipt of a certain whole percentage,
     up to fifty percent (50%), of the Base Annual Salary and a certain whole
     percentage, up to one hundred percent (100%), of any Bonus payable to the
     Executive as an employee of the Corporation for the next calendar year and
     for succeeding calendar years under the Plan; provided, however, that any
     such election to defer shall apply only with respect to Base Annual Salary
     or any Bonus payable to the Executive by the Corporation prior to the
     Executive's termination of employment for any reason. Total deferrals by an
     Executive in a year must be fifteen hundred dollars ($1,500) or more. If
     total deferrals do not equal fifteen hundred dollars ($1,500), the
     difference between the deferral elected and fifteen hundred dollars
     ($1,500) will be withheld from Executive's salary.

     THIRD: Section 4.2 is amended to read as follows:

          4.2  Matching Contribution. The Corporation shall credit a Matching
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     Contribution to the Executive's Account with respect to Deferral
     Commitments. The amount of the Matching Contribution shall be twenty-five
     percent (25%) of the first eight percent (8%) of the Executive's Elective
     Deferred Compensation during the calendar year, but the total Matching
     Contribution shall not exceed three percent (3%) of the Executive's
     Compensation during such calendar year. The Matching Contribution shall be
     reduced by the amount, if any, the Corporation has contributed as a
     matching contribution for the Executive to the Corporation's Retirement K
     Savings Plan. Matching Contributions shall be credited to the Executive's
     Account on the last day of the calendar quarter in which the Matching
     Contribution was earned. If the Executive is not eligible to participate in
     the Retirement K Savings Plan, no Matching Contributions shall be made to
     this Plan until such time of eligibility.

     FOURTH: Section 5.3 is amended to read as follows:

          5.3  Form of Benefit Payment.
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(a)  At the time the Executive elects to defer Compensation, the Executive may
     also elect to receive Plan Benefits under the Plan either:

     (i)  In equal annual installments (the number of such installments not to
          exceed fifteen (15)), as designated by the Executive;

     (ii) In a single sum payment; or

     (iii)In a combination of partial lump sum payment, and remainder in
          installments.

(b)  An Executive may elect to modify such election by filing a change of
     payment designation which shall supersede the prior form of payment
     designation in the Participation Agreement for any one (1) or more Deferral
     Periods. If the Executive's most recent change of payment designation has
     not been filed one (1) full calendar year prior to the year of retirement,
     the prior election shall be used to determine the form of payment. For
     example, an Executive retiring in 2003 must file a written request with the
     Committee by December 31, 2001 to change his form of payment designation.

(c)  If the Executive terminates the election to defer, any Compensation already
     deferred shall not be payable to the Executive until the date elected by
     the Executive in the applicable Participation Agreement between the
     Corporation and the Executive, or, if earlier, on the first business day of
     January following an event of termination of employment, and then only in
     accordance with the terms and conditions contained herein and in the
     applicable Participation Agreement.

     FIFTH: Section 5.9 is amended to read as follows:

5.9  Accelerated Distribution
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     Notwithstanding any other provision of the Plan, an Executive shall be
     entitled to receive, upon written request to the Committee, a lump sum
     distribution equal to ninety percent (90%) of the vested Account balance as
     of the Determination Date immediately preceding the date on which the
     Committee receives the written request. The remaining balance shall be
     forfeited by the Executive. An Executive who receives a distribution under
     this section shall be suspended from participation in the Plan for twelve
     (12) months. The amount payable under this section shall be paid in a lump
     sum within sixty-five (65) days following the receipt of the notice by the
     Committee from the Executive.

     SIXTH: Except as provided herein, all other plan provisions shall remain in
full force and effect.

IN WITNESS WHEREOF, Northwest Natural Gas Company has caused this Amendment No.
5 to be executed as of the date first written above.

                                        NORTHWEST NATURAL GAS COMPANY


                                   By:  /s/ Richard G. Reiten
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                                             Richard G. Reiten
                                             President and CEO