Document:

Northwest Natural Gas Company Supplemental Trust

 Exhibit 10b.(2) 
  
 NORTHWEST NATURAL GAS COMPANY 
  

SUPPLEMENTAL TRUST 
  
 NORTHWEST NATURAL GAS COMPANY 
 One Pacific Square 
 220 N.W. Second Avenue 
 Portland, Oregon 97209 
  
 WACHOVIA BANK, NATIONAL ASSOCIATION 
 One West Fourth Street 
 NC-6251 
 Winston-Salem, North Carolina 27101 

 TABLE OF CONTENTS 
  

			
		
	 Section 1. Establishment of Trust
	  	1
		
	 Section 2. Payments to Plan Participants and Their Beneficiaries.
	  	2
		
	 Section 3. Trustee Responsibility Regarding Payments to Trust Beneficiary when Company Is Insolvent.
	  	3
		
	 Section 4. Payments to Company.
	  	4
		
	 Section 5. Investment Authority.
	  	4
		
	 Section 6. Disposition of Income.
	  	6
		
	 Section 7. Accounting by Trustee.
	  	6
		
	 Section 8. Responsibility of Trustee.
	  	7
		
	 Section 9. Compensation and Expenses of Trustee.
	  	7
		
	 Section 10. Resignation and Removal of Trustee.
	  	8
		
	 Section 11. Appointment of Successor.
	  	8
		
	 Section 12. Amendment or Termination.
	  	9
		
	 Section 13. Miscellaneous.
	  	9
		
	 Section 14. Effective Date.
	  	11

  

 ii 

 NORTHWEST NATURAL GAS COMPANY 
  
 SUPPLEMENTAL TRUST 
  
 (a) This Agreement made this first day of January 2005, by and between Northwest Natural Gas Company (the “Company”) and Wachovia Bank, National
Association (the “Trustee”); 
  
 (b) WHEREAS, the
Company has adopted the nonqualified deferred compensation plans listed in Appendix A (the “Plans”). 
  
 (c) WHEREAS, the Company has incurred or expects to incur liability under the terms of such Plans with respect to the individuals participating in such
Plans; 
  
 (d) WHEREAS, the Company wishes to establish a trust
(the “Trust”) and to contribute to the Trust assets that shall be held therein, subject to the claims of the Company’s creditors in the event of the Company’s Insolvency, as herein defined, until paid to Plan participants and
their beneficiaries in such manner and at such times as specified in the Plans. 
  
 (e) WHEREAS, it is the intention of the parties that this Trust shall constitute an unfunded arrangement and shall not affect the status of the Plans as unfunded plans maintained for the purpose of providing deferred
compensation for a select group of management or highly compensated employees for purposes of Title I of the Employee Retirement Income Security Act of 1974; 
  
 (f) WHEREAS, it is the intention of the Company to make contributions to the Trust to provide itself with a source of funds to assist it in the meeting of
its liabilities under the Plans; 
  
 NOW, THEREFORE, the parties do hereby
establish the Trust and agree that the Trust shall be comprised, held and disposed of as follows: 
  
 Section 1. Establishment of Trust 
  
 (a) The Company hereby deposits with the Trustee in trust shares of Northwest Natural Gas Company common stock, which shall become the principal of the Trust to be held, administered and disposed of by the Trustee as
provided in this Trust Agreement. 
  
 (b) The Trust hereby
established shall be irrevocable. 
  
 (c) The Trust is intended to
be a grantor trust, of which the Company is the grantor, within the meaning of subpart E, part I, subchapter J, chapter 1, subtitle A of the Internal Revenue Code of 1986, as amended, and shall be construed accordingly. 

 (d) The principal of the Trust, and any earnings thereon shall be held separate and apart from other
funds of the Company and shall be used exclusively for the uses and purposes of Plan participants and general creditors as herein set forth. Plan participants and their beneficiaries shall have no preferred claim on, or any beneficial ownership
interest in, any assets of the Trust. Any rights created under the Plans and this Trust document shall be mere unsecured contractual rights of Plan participants and their beneficiaries against the Company. Any assets held by the Trust will be
subject to the claims of the Company’s general creditors under federal and state law in the event of Insolvency, as defined in Section 3(a) herein. 
  
 (e) The Company, in its sole discretion, may at any time, or from time to time, make additional deposits of cash or other property in trust with the
Trustee to augment the principal to be held, administered and disposed of by the Trustee as provided in this Trust Agreement. Neither the Trustee nor any Plan participant or beneficiary shall have any right to compel such additional deposits.

  
 Section 2. Payments to Plan Participants and Their
Beneficiaries. 
  
 (a) With respect to any benefit payments
due to participants and beneficiaries under the Plans, the Company may make such payments and the Trustee shall, upon request of the Company either before or within 30 days after the payment date and upon receipt of evidence of such payments
satisfactory to the Trustee, reimburse the Company from the Trust for such payments. Upon the direction of the Company, the Trustee shall pay benefits owed under a Plan. All such payments shall come from the applicable Subtrust (as defined in
Section 5(a) hereof). If the principal of a Subtrust, and any earnings thereon, are not sufficient to make payments of benefits in accordance with the terms of the Plans, the Company shall make the balance of each such payment as it falls due. The
Trustee shall notify the Company where principal and earnings are not sufficient. When the Company makes payments to participants and beneficiaries, the Company shall make any required income tax withholding and reporting, and shall pay amounts
withheld to taxing authorities. 
  
 (b) Prior to a Change in
Control (as defined in Section 13(d) hereof), the entitlement of a Plan participant or his or her beneficiaries to benefits under the Plans shall be determined by the Company or such party as it shall designate under the Plans, and any claim for
such benefits shall be considered and reviewed under the procedures set out in the Plans. 
  
 (c) Upon a Change in Control, the Company shall deliver to the Trustee a schedule (the “Payment Schedule”) that indicates the amounts payable in respect of each Plan participant (and his or her
beneficiaries), that provides a formula or other instructions acceptable to the Trustee for determining the amounts so payable, the form in which such amount is to be paid (as provided for or available under the Plans), and the time of commencement
for payment of such amounts. After the Change in Control, the Trustee shall make payments upon application by the Plan participants and their beneficiaries from the applicable Subtrust in accordance with such Payment Schedule. The Trustee shall make
provision for the reporting and withholding of any federal, state or local taxes that may be required to be withheld with respect to the payment of benefits pursuant to the terms of the Plans and shall pay amounts withheld to the appropriate taxing
authorities or determine that such amounts have been reported, withheld and paid by the 

  

 2 

 
Company. After the occurrence of a Change in Control, a participant or beneficiary may apply for payment of a Plan benefit by the Company under the
procedures for benefit claims provided in the Plan or may apply for payment by the Trustee in accordance with the Payment Schedule. 
  
 Section 3. Trustee Responsibility Regarding Payments to Trust Beneficiary when Company Is Insolvent. 
  
 (a) The Trustee shall cease payment of benefits to Plan participants and
their beneficiaries if the Company is Insolvent. The Company shall be considered “Insolvent” for purposes of this Trust Agreement if: 
  
 (1) the Company is unable to pay its debts as they become due, or 
  
 (2) the Company is subject to a pending proceeding as a debtor under the United States Bankruptcy Code.

  
 (b) At all times during the continuance of this Trust, as
provided in Section 1(d) hereof, the principal and income of the Trust shall be subject to claims of general creditors of the Company under federal and state law as set forth below. 
  
 (1) The Board of Directors and the Chief Executive Officer of the Company shall have the duty to inform the
Trustee in writing of the Company’s Insolvency. If a person claiming to be a creditor of the Company alleges in writing to the Trustee that the Company has become Insolvent, the Trustee shall determine whether the Company is Insolvent and,
pending such determination, the Trustee shall discontinue payment of benefits to Plan participants or their beneficiaries. 
  
 (2) Unless the Trustee has actual knowledge of the Company’s Insolvency, or has received notice from the Company or a person claiming
to be a creditor alleging that the Company is Insolvent, the Trustee shall have no duty to inquire whether the Company is Insolvent. The Trustee may in all events rely on such evidence concerning the Company’s solvency as may be furnished to
the Trustee and that provides the Trustee with a reasonable basis for making a determination concerning the Company’s solvency. 
  
 (3) If at any time the Trustee has determined that the Company is Insolvent, the Trustee shall discontinue payments to Plan participants
or their beneficiaries and shall hold the assets of the Trust for the benefit of the Company’s general creditors. Nothing in this Trust Agreement shall in any way diminish any rights of Plan participants or their beneficiaries to pursue their
rights as general creditors of the Company with respect to benefits due under the Plans or otherwise. 
  
 (4) The Trustee shall resume the payment of benefits to Plan participants or their beneficiaries in accordance with Section 2 of the Trust
Agreement only after the Trustee has determined that the Company is not Insolvent (or is no longer Insolvent). 
  
 (c) Provided that there are sufficient assets, if the Trustee discontinues the payment of benefits from the Trust pursuant to Section 3(b) hereof and
subsequently resumes such payments, 

  

 3 

 
the first payment following such discontinuance shall include the aggregate amount of all payments due to Plan participants or their beneficiaries under the
terms of the Plans for the period of such discontinuance, less the aggregate amount of any payments made to Plan participants or their beneficiaries by the Company in lieu of the payments provided for hereunder during any such period of
discontinuance. 
  
 Section 4. Payments to Company. 
  
 (a) Except as provided in Sections 2(a), 3, and 4(b) hereof, after the Trust
has become irrevocable, the Company shall have no right or power to direct the Trustee to return to the Company or to divert to others any of the Trust assets before all benefits have been paid to Plan participants and their beneficiaries pursuant
to the terms of the Plans and all fees and expenses of this Trust have been paid. 
  
 (b) In the event any Subtrust holds Excess Assets, the Company may direct the Trustee to return part or all of the Excess Assets to the Company. “Excess Assets” are assets of the Subtrust exceeding 125
percent of the present value of all the benefits owed to participants and beneficiaries under the Plan funded through that Subtrust. For purposes of this 4(b), the present value of benefits owed to participants and beneficiaries under a Plan with
individual accounts shall be the total value of those accounts. The present value of benefits owed to participants and beneficiaries under a Plan without individual accounts shall be calculated on the basis of assumptions with respect to interest,
mortality, and other factors selected by the actuarial firm engaged by the Company from time to time to provide valuations of the Plan for financial reporting purposes. After a Change in Control, the assumptions shall continue to be selected by the
actuarial firm engaged at the time of such Change in Control, even though the Company engages a different actuarial firm for subsequent work. 
  
 Section 5. Investment Authority. 
  
 (a) Contributions to the Trust shall be designated by the Company to one of the Subtrusts described in (1), (2), and (3) below. A “Subtrust”
shall be accounted for as a separate portion of the Trust assets, and shall include earnings thereon. Assets of different Subtrusts may be commingled for investment as long as the value held for each Subtrust is accounted for. Assets generally may
not be transferred among Subtrusts, except as follows. Assets in a Subtrust for benefits described in (3) shall be transferred to a Subtrust for benefits described in (2) to correspond to transfers by participants between investment alternatives
under the Plans upon direction from the Company prior to a Change in Control or by action of the Trustee without direction after a Change in Control. The Subtrusts are established to fund: 
  
 (1) Benefits owed under Plans that are do not have
individual accounts. 
  
 (2) Benefits payable in
Company common stock under Plans that have individual accounts. 
  
 (3) Benefits not described in (2) that are owed under Plans that have individual accounts. 
  

 4 

 Upon a Change in Control, a new separate Subtrust for each category of benefit described in (1), (2), and (3) shall be
established for participants who are not covered by the Plans at the time of the Change in Control and their beneficiaries. The new Subtrust shall hold only contributions designated to it by the Company or transferred from a parallel new Subtrust
under this Section 5(a), and earnings thereon. 
  
 (b) Prior to a
Change in Control, the Company shall have the right, subject to this Section 5(b), to direct the Trustee with respect to investments. 
  
 (1) The Company may at any time direct the Trustee to segregate all or a portion of any Subtrust in a separate investment account or
accounts and may appoint one or more investment managers and/or an investment committee established by the Company to direct the investment and reinvestment of each such investment account or accounts. In such event, the Company shall notify the
Trustee of the appointment of each such investment manager and/or investment committee. No such investment manager shall be related, directly or indirectly, to the Company, but members of the investment committee may be employees of the Company.

  
 (2) Thereafter (until a Change in Control),
the Trustee shall make every sale or investment with respect to such investment account as directed in writing by the investment manager or investment committee. It shall be the duty of the Trustee to act strictly in accordance with each direction.
The Trustee shall be under no duty to question any such direction of the investment manager or investment committee, to review any securities or other property held in such investment account or accounts acquired by it pursuant to such directions or
to make any recommendations to the investment managers or investment committee with respect to such securities or other property. 
  
 (3) Notwithstanding the foregoing, the Trustee, without obtaining prior approval or direction from an investment manager or investment
committee, shall invest cash balances held by it from time to time in short term cash equivalents including, but not limited to, through the medium of any short term common, collective or commingled trust fund established and maintained by the
Trustee subject to the instrument establishing such trust fund, U.S. Treasury Bills, commercial paper (including such forms of commercial paper as may be available through the Trustee’s Trust Department), certificates of deposit (including
certificates issued by the Trustee in its separate corporate capacity), and similar type securities, with a maturity not to exceed one year; and, furthermore, sell such short term investments as may be necessary to carry out the instructions of an
investment manager or investment committee regarding more permanent type investments and directed distributions. 
  
 (4) The Trustee shall neither be liable nor responsible for any loss resulting to the Trust assets by reason of any sale or purchase of an
investment directed by an investment manager or investment committee nor by reason of the failure to take any action with respect to any investment which was acquired pursuant to any such direction in the absence of further directions of such
investment manager or investment committee. 
  

 5 

 (c) Following a Change in Control, the Trustee shall have the sole and absolute discretion in the
management of the Trust assets. In investing the Trust assets, the Trustee shall consider: 
  
 (1) the needs of the Plans; 
  
 (2) the need for matching of the Trust assets with the liabilities of the Plans; and 
  
 (3) the duty of the Trustee to act solely in the best
interests of the participants and their beneficiaries. 
  
 (d) The
Trustee shall have the right, in its sole discretion, to delegate its investment responsibility to an investment manager who may be an affiliate of the Trustee. In the event the Trustee shall exercise this right, the Trustee shall remain, at all
times responsible for the acts of an investment manager. The Trustee shall have the right to purchase an insurance policy or an annuity to fund the benefits of the Plans. 
  
 (e) The Company shall have the right at any time, and from time to time in its sole discretion, to substitute assets (other
than securities issued by the Trustee or the Company) of equal fair market value for any asset held by the Trust. This right is exercisable by the Company in a nonfiduciary capacity without the approval or consent of any person in a fiduciary
capacity; provided, however, that, following a Change in Control, no such substitution shall be permitted unless the Trustee determines that the fair market values of the substituted assets are equal. 
  
 Section 6. Disposition of Income. 
  
 During the term of the Trust, all income received by the Trust, net of
expenses and taxes, shall be accumulated and reinvested. 
  
 Section 7.
Accounting by Trustee. 
  
 The Trustee shall keep accurate
and detailed records of all investments, receipts, disbursements, and all other transactions required to be made, including such specific records as shall be agreed upon in writing between the Company and the Trustee. Within 45 days following the
close of each calendar year and within 45 days after the removal or resignation of the Trustee, the Trustee shall deliver to the Company a written account of its administration of the Trust during such year or during the period from the close of the
last preceding year to the date of such removal or resignation, setting forth all investments, receipts, disbursements and other transactions effected by it, including a description of all securities and investments purchased and sold with the cost
or net proceeds of such purchases or sales (accrued interest paid or receivable being shown separately), and showing all cash, securities and other property held in the Trust at the end of such year or as of the date of such removal or resignation,
as the case may be. 
  

 6 

 Section 8. Responsibility of Trustee. 
  
 (a) The Trustee shall act with the care, skill, prudence and diligence under the circumstances then prevailing that a
prudent person acting in like capacity and familiar with such matters would use in the conduct of an enterprise of a like character and with like aims, provided, however, that the Trustee shall incur no liability to any person for any action taken
pursuant to a direction, request or approval given by the Company which is contemplated by, and in conformity with, the terms of the Plans or this Trust and is given in writing by the Company. In the event of a dispute between the Company and a
party, the Trustee may apply to a court of competent jurisdiction to resolve the dispute. 
  
 (b) If the Trustee undertakes or defends any litigation arising in connection with this Trust or to protect a participant’s or beneficiary’s
rights under the Plans, the Company agrees to indemnify the Trustee against the Trustee’s costs, reasonable expenses and liabilities (including, without limitation, attorneys’ fees and expenses) relating thereto and to be primarily liable
for such payments. If the Company does not pay such costs, expenses and liabilities in a reasonably timely manner, the Trustee may obtain payment from the Trust. 
  
 (c) Prior to a Change in Control, the Trustee may consult with legal counsel (who may also be counsel for the Company
generally) with respect to any of its duties or obligations hereunder. Following a Change in Control, the Trustee shall select independent legal counsel and may consult with counsel or other persons with respect to its duties and with respect to the
rights of participants or their beneficiaries under the Plans. 
  
 (d) The Trustee may hire agents, accountants, actuaries, investment advisors, financial consultants or other professionals to assist it in performing any of its duties or obligations hereunder and may rely on any determinations made by such
agents and information provided to it by the Company. 
  
 (e) The
Trustee shall have, without exclusion, all powers conferred on the Trustee by applicable law, unless expressly provided otherwise herein, provided, however, that if an insurance policy is held as an asset of the Trust, the Trustee shall have no
power prior to a Change in Control to name a beneficiary of the policy other than the Trust, to assign the policy (as distinct from conversion of the policy to a different form) other than to a successor Trustee, or to loan to any person the
proceeds of any borrowing against such policy. 
  
 (f)
Notwithstanding any powers granted to the Trustee pursuant to this Trust Agreement or to applicable law, the Trustee shall not have any power that could give this Trust the objective of carrying on a business and dividing the gains therefrom, within
the meaning of section 301.7701-2 of the Procedure and Administrative Regulations promulgated pursuant to the Internal Revenue Code. 
  
 Section 9. Compensation and Expenses of Trustee. 
  
 The Trustee shall be reimbursed for all expenses and shall be paid a reasonable fee fixed by it from time to time. No increase in the fee shall be
effective before 90 days after the Trustee 

  

 7 

 
gives notice to the Company of the increase. The Company shall pay the Trustee’s fees and expenses. If not so paid, the Trustee shall take payment of
the fees and expenses from the Trust assets, which shall be charged to the Subtrusts in proportion to the assets held in each. The Company shall reimburse the Trust for any fees and expenses paid out of it. 
  
 Section 10. Resignation and Removal of Trustee. 
  
 (a) Prior to a Change in Control, the Trustee may resign at any time by
written notice to the Company, which shall be effective 60 days after receipt of such notice unless the Company and the Trustee agree otherwise. After a Change in Control, the Trustee may resign only after the appointment of a successor Trustee.

  
 (b) The Trustee may be removed by the Company on 60 days
notice or upon shorter notice accepted by the Trustee prior to a Change in Control. After a Change in Control, the Trustee may only be removed by the Company with written consent from the number of participants described in Section 12(a)(1).

  
 (c) If the Trustee seeks to resign or is removed after a
Change in Control, a successor Trustee that qualifies under Section 11(a) shall be selected by one of the following: 
  
 (1) The Trustee; 
  
 (2) The Company, if written consent for the removal was given by the number of participants described in Section 12(a)(1); or 

 
 (3) Upon Trustee application, by a court of competent
jurisdiction. 
  
 (d) Upon resignation or removal of the Trustee
and appointment of a successor Trustee, all assets shall subsequently be transferred to the successor Trustee. The transfer shall be completed within 60 days after receipt of notice of resignation, removal or transfer, unless the Company extends the
time limit. 
  
 (e) If the Trustee resigns or is removed before
any Change in Control, the Company shall appoint a successor in accordance with Section 11 hereof, by the effective date of resignation or removal. If no such appointment has been made, the Trustee may apply to a court of competent jurisdiction for
appointment of a successor or for instructions. All expenses of the Trustee in connection with the proceeding shall be allowed as administrative expenses of the Trust. 
  
 Section 11. Appointment of Successor. 
  
 (a) Any third party, such as a bank trust department or other party that may be granted corporate trustee powers under state
law and that has total assets in excess of $50 million, may be appointed as a successor to replace the Trustee upon resignation or removal. The appointment shall be effective when accepted in writing by the new Trustee, who shall have all of the
rights and powers of the former Trustee, including ownership rights in the Trust assets. The former Trustee shall execute any instrument necessary or reasonably requested by the Company or the successor Trustee to evidence the transfer. 

 

 8 

 (b) The successor trustee need not examine the records and acts of any prior Trustee and may retain or
dispose of existing Trust assets, subject to Sections 7 and 8 hereof. The successor Trustee shall not be responsible for and the Company shall indemnify and defend the successor Trustee from any claim or liability resulting from any action or
inaction of any prior Trustee or from any other past event, or any condition existing at the time it becomes successor Trustee. 
  
 Section 12. Amendment or Termination. 
  
 (a) This Trust Agreement may be amended by a written instrument executed by the Trustee and the Company in accordance with any of the following:

  
 (1) A written consent to the amendment is
given by participants who constitute a majority in number of all the participants in the Plans and who are owed at least two-thirds of the present value of the accrued benefits under the Plans. 
  
 (2) The amendment will not have a material adverse effect on
the rights of any participant in the Plans. 
  
 (3) The amendment is necessary to comply with any law, regulation, or other legal requirement. 
  
 Notwithstanding the foregoing, no such amendment shall conflict with the terms of the Plans or shall make the Trust revocable after it has become irrevocable in accordance with Section 1(b) hereof. 
  
 (b) The Trust shall not terminate until the date on which Plan participants
and their beneficiaries are no longer entitled to benefits pursuant to the terms of the Plans. Upon termination of the Trust, any assets remaining in the Trust shall be returned to the Company after all fees and expenses of the Trust have been paid.

  
 (c) Upon written approval of all participants and
beneficiaries entitled to payment of benefits owed from a Subtrust, the Company may terminate that Subtrust prior to the time all benefits owed from the Subtrust have been paid and the assets of that Subtrust shall be returned to the Company.

  
 Section 13. Miscellaneous. 
  
 (a) Any provision of this Trust Agreement prohibited by law shall be
ineffective to the extent of any such prohibition, without invalidating the remaining provisions hereof. 
  
 (b) Benefits payable to Plan participants and their beneficiaries under this Trust Agreement may not be anticipated, assigned (either at law or in
equity), alienated, pledged, encumbered or subjected to attachment, garnishment, levy, execution or other legal or equitable process. 
  

 9 

 (c) This Trust Agreement shall be governed by and construed in accordance with the laws of Oregon.

  
 (d) For purposes of this Trust, Change in Control shall mean
the occurrence of any of the following events: 
  
 (1) The approval by the shareholders of the Company of: 
  
 (A) any consolidation, merger or plan of share exchange involving the Company (a “Merger”) as a result of which the holders of outstanding securities of the Company ordinarily having the right to vote for
the election of directors (“Voting Securities”) immediately prior to the Merger do not continue to hold at least 50% of the combined voting power of the outstanding Voting Securities of the surviving corporation or a parent corporation of
the surviving corporation immediately after the Merger, disregarding any Voting Securities issued to or retained by such holders in respect of securities of any other party to the Merger; 
  
 (B) any sale, lease, exchange or other transfer (in one
transaction or a series of related transactions) of all, or substantially all, the assets of the Company; or 
  
 (C) the adoption of any plan or proposal for the liquidation or dissolution of the Company; 
  
 (2) At any time during a period of two consecutive years,
individuals who at the beginning of such period constituted the Board (“Incumbent Directors”) shall cease for any reason to constitute at least a majority thereof; provided, however, that the term “Incumbent Director” shall also
include each new director elected during such two-year period whose nomination or election was approved by two-thirds of the Incumbent Directors then in office; or 
  
 (3) Any Person (as hereinafter defined) shall, as a result of a tender or exchange offer, open market
purchases or privately negotiated purchases from anyone other than the Company, have become the beneficial owner (within the meaning of Rule 13d-3 under the Securities Exchange Act of 1934 (the “Exchange Act”)), directly or indirectly, of
Voting Securities representing 20 percent or more of the combined voting power of the then outstanding Voting Securities. “Person” shall mean and include any individual, corporation, partnership, group, association or other
“person,” as such term is used in Section 14(d) of the Exchange Act, other than the Company or any employee benefit plan(s) sponsored by the Company. 
  

 10 

 Section 14. Effective Date. 
  
 The effective date of this Trust Agreement shall be January 1, 2005. 
  

							
	NORTHWEST NATURAL GAS COMPANY	 	WACHOVIA BANK, NATIONAL ASSOCIATION
				
	 By:
	 	 /s/ Mark S. Dodson

	 	By:	 	 /s/ John N. Smith III

	 Its:
	 	President and Chief Executive Officer	 	Its:	 	Senior Vice President
		
	 Date Signed: February 24, 2005
	 	 Date Signed: March 1, 2005

  
 APPENDIX A

  
 List of Plans covered by Northwest Natural Gas Company
Supplemental Trust as of January 1, 2005: 
  
 Northwest Natural
Gas Company Deferred Compensation Plan for Directors and Executives 
  
 Northwest Natural Gas Company Supplemental Executive Retirement Plan 
  

 11Umbrella Trust for Directors

 Exhibit 10b. (3) 
  
 NORTHWEST NATURAL GAS COMPANY 
  
 UMBRELLA TRUSTTM FOR DIRECTORS 
  
 EFFECTIVE JANUARY 1, 1991 
  
 RESTATED AS OF DECEMBER 1, 2001 
  

			
	 NORTHWEST NATURAL GAS COMPANY
	 	 
	 One Pacific Square
	 	 
	 220 N.W. 2nd
	 	Company
	 Portland, Oregon 97209
	 	 

  

			
	 WACHOVIA BANK, N.A.
	 	 
	 301 North Main Street
	 	 
	 Winston-Salem, North Carolina 27150-3099
	 	Trustee

  

  
 TABLE OF CONTENTS 

 

							
	 	  	 	  	 	  	Page

	 Preamble
	  	 	  	 	  	 
			
	 ARTICLE I
	  	 Effective Date; Duration
	  	1
				
	 	  	 1.01
	  	 Effective Date
	  	1
	 	  	 1.02
	  	 Duration
	  	2
	 	  	 1.03
	  	 Revocability
	  	3
	 	  	 1.04
	  	 Change in Control
	  	3
			
	 ARTICLE II
	  	 Trust Fund
	  	4
				
	 	  	 2.01
	  	 Contributions
	  	4
	 	  	 2.02
	  	 Investments
	  	6
	 	  	 2.03
	  	 Recapture of Excess Assets
	  	8
	 	  	 2.04
	  	 Subtrusts
	  	9
	 	  	 2.05
	  	 Substitution of Other Property
	  	9
	 	  	 2.06
	  	 Administrative Powers of Trustee
	  	9
			
	 ARTICLE III
	  	 Administration
	  	12
				
	 	  	 3.01
	  	 Committee
	  	12
	 	  	 3.02
	  	 Payment of Benefits
	  	13
	 	  	 3.03
	  	 Records
	  	14
	 	  	 3.04
	  	 Accountings
	  	14
	 	  	 3.05
	  	 Expenses and Fees
	  	14
			
	 ARTICLE IV
	  	 Liability
	  	15
				
	 	  	 4.01
	  	 Indemnity
	  	15
	 	  	 4.02
	  	 Bonding
	  	15
			
	 ARTICLE V
	  	 Insolvency
	  	15
				
	 	  	 5.01
	  	 Determination of Insolvency
	  	15
	 	  	 5.02
	  	 Insolvency Administration
	  	16
	 	  	 5.03
	  	 Termination of Insolvency Administration
	  	16
	 	  	 5.04
	  	 Creditors’ Claims During Solvency
	  	17
			
	 ARTICLE VI
	  	 Successor Trustees
	  	17
				
	 	  	 6.01
	  	 Resignation and Removal
	  	17
	 	  	 6.02
	  	 Appointment of Successor
	  	17
	 	  	 6.03
	  	 Accountings; Continuity
	  	18

  

 i 

							
	 ARTICLE VII
	  	 General Provisions
	  	18
				
	 	  	 7.01
	  	 Interests Not Assignable
	  	18
	 	  	 7.02
	  	 Amendment
	  	18
	 	  	 7.03
	  	 Applicable Law
	  	18
	 	  	 7.04
	  	 Agreement Binding on All Parties
	  	18
	 	  	 7.05
	  	 Notices and Directions
	  	19
	 	  	 7.06
	  	 No Implied Duties
	  	19

  
 EXHIBIT A 
  

 ii 

  
 INDEX OF TERMS 
  

					
	 TERM

	  	PROVISION

	 	PAGE

	 Acquiror Stock
	  	2.02-3	 	7
	 Act
	  	1.04-2(c)	 	4
			
	 Board
	  	1.02-3	 	2
			
	 Cash Benefits
	  	2.01-1	 	4
	 Change in Control
	  	1.04-2	 	3
	 Code
	  	1.02-3	 	2
	 Committee
	  	Preamble	 	1
	 Common Stock
	  	2.01-2	 	4
	 Company
	  	Heading	 	1
	 Contract(s)
	  	2.02-1	 	6
	 Corporate Transaction
	  	1.04-3	 	4
			
	 DDCP
	  	Preamble	 	1
	 DRSPP
	  	2.02-2	 	6
			
	 ERISA Funding
	  	1.02-4	 	3
	 Excess Assets
	  	2.03-2	 	8
	 Experts
	  	2.06-2	 	11
			
	 Insolvency Administration
	  	5.01-3	 	15
	 Insolvent
	  	5.01-1	 	15
	 Insurer
	  	2.02-1	 	6
			
	 NEDSCP
	  	2.01-2	 	4
			
	 Plans
	  	Preamble	 	1
	 Potential Change In Control
	  	2.01-3	 	5
			
	 Retirement Bylaw
	  	Preamble	 	1
			
	 Solvency
	  	5.04-2	 	17
	 Subtrusts
	  	2.04	 	9
			
	 Tax Funding
	  	1.02-5	 	3
	 Triggering Event
	  	2.01-3	 	5
	 Trustee
	  	Heading	 	1
			
	 Voting Securities
	  	1.04-2(c)	 	4
			
	 Written Consent of Participants
	  	1.02-6	 	3

  

 iii 

  
 NORTHWEST NATURAL GAS COMPANY

  
 UMBRELLA TRUSTTM FOR DIRECTORS 
  
 EFFECTIVE JANUARY 1, 1991 
  
 RESTATED AS OF DECEMBER 1, 2001 
  

			
	 NORTHWEST NATURAL GAS COMPANY
	  	 
	 One Pacific Square
	  	 
	 220 N.W. 2nd
	  	 
	 Portland, Oregon 97209
	  	Company
		
	 WACHOVIA BANK, N.A.
	  	 
	 301 North Main Street
	  	 
	 Winston-Salem, North Carolina 27150-3099
	  	Trustee

  
 The Company has
adopted the following plans (the “Plans”) for the benefit of directors of the Company and its affiliates: 
  
 Northwest Natural Gas Directors Deferred Compensation Plan (“DDCP”) 
 Bylaws Article III, Section 5 on Directors Retirement Benefits (“Retirement Bylaw”) 
  
 The Plans are administered by an administrative committee (the “Committee”)
appointed by the Company. If the Plans are administered by more than one (1) Committee at any time, references in this Trust Agreement to the Committee which relate to a particular Plan shall refer to the Committee which administers that Plan, and,
if the reference does not relate to a particular Plan, shall refer to all of such Committees. The purpose of this trust is to give Plan participants greater security by placing assets in trust for use only to pay benefits or, if the Company becomes
insolvent, to pay creditors. The trust is intended to be a grantor trust, the income of which is taxable to the Company. No contribution to or income of the trust is to be taxable to Plan participants until benefits are distributed to them.

  
 The Company and the original trustee of this trust established
this trust effective as of January 1, 1991 pursuant to a Trust Agreement dated as of that date. The Company and the Trustee hereby restate this trust effective as of December 1, 2001 on the following terms: 
  
 ARTICLE I 
  
 Effective Date; Duration 
  
 1.01 Effective Date. 
  
 This trust shall be effective January 1, 1991. The trust year shall coincide with the Company’s fiscal year, which is the calendar year. 

 

 1 

 1.02 Duration. 
  
 1.02-1 This trust shall continue in effect until all the assets of the trust fund are exhausted through
distribution of benefits to participants, payment to general creditors in the event of insolvency, payment of fees and expenses of the Trustee, and return of remaining funding of a Subtrust pursuant to 1.02-2. 
  
 1.02-2 Except as provided in 1.03, the trust shall be
irrevocable with respect to amounts contributed to it for a Plan until all benefit rights covered by the Subtrust for that Plan are satisfied. The Trustee shall then return to the Company any assets remaining in the Subtrust for that Plan.

  
 1.02-3 If the existence of this trust is held
to be ERISA Funding or Tax Funding by a federal court and appeals from that holding are no longer timely or have been exhausted, this trust shall terminate. The Board of Directors of the Company (the “Board”) may also terminate this trust
if it determines, based on an opinion of legal counsel which is satisfactory to the Trustee, that either (i) judicial authority or the opinion of the U.S. Department of Labor, Treasury Department or Internal Revenue Service (as expressed in proposed
or final regulations, advisory opinions or rulings, or similar administrative announcements) creates a significant risk that the trust will be held to be ERISA Funding or Tax Funding, or (ii) ERISA or the Internal Revenue Code (the “Code”)
requires the trust to be amended in a way that creates a significant risk that the trust will be held to be ERISA Funding or Tax Funding, and failure to so amend the trust could subject the Company to material penalties. Upon such determination, the
assets of each Subtrust remaining after payment of the Trustee’s fees and expenses shall be distributed as follows: 
  
 (a) Such assets shall be transferred to a new trust established by the Company which is not deemed to be ERISA Funding or Tax Funding, but
which is similar in all other respects to this trust, if the Company determines that it is possible to establish such a trust. 
  
 (b) If the Company determines that it is not possible to establish the trust in (a) above, then the assets shall be distributed to the
Company if the Written Consent of Participants, as defined in 1.02-6, is obtained for such distribution. 
  
 (c) If the Company determines that it is not possible to establish the trust in (a) above and the Written Consent of Participants is not
obtained to distribute the assets to the Company, then the assets shall be allocated in proportion to the accrued and vested benefits of the participants and distributed to them in lump sums. Any assets remaining shall be distributed to the Company.

  
 (d) Notwithstanding the foregoing, the
Trustee shall distribute funds to a participant to the extent that a federal court has held that the interest of the participant in this trust is includible for federal income tax purposes in the gross income of the participant prior to actual
payment of Plan benefits to the participant and appeals from that holding are no longer timely or have been exhausted. This provision shall also apply to any beneficiary of a participant. 
  

 2 

 1.02-4 This trust is “ERISA Funding” if it prevents any of the Plans from
meeting the “unfunded” criterion of the exceptions to various requirements of Title I of the Employee Retirement Income Security Act of 1974 (“ERISA”) for plans that are unfunded and maintained primarily for the purpose of
providing deferred compensation for a select group of management or highly compensated employees. 
  
 1.02-5 This trust is “Tax Funding” if it causes the interest of a participant in this trust to be includible for federal income
tax purposes in the gross income of the participant prior to actual payment of Plan benefits to the participant. 
  
 1.02-6 “Written Consent of Participants” means, for the purposes of this trust, consent in writing by participants who (i) are a
majority in number and (ii) have at least sixty-six and two-thirds percent (66-2/3%) in value of the accrued benefits of all participants in the Plans which are subject to this trust on the date of such consent. 
  
 1.03 Revocability. 
  
 1.03-1 This trust shall become irrevocable upon the issuance
by the Internal Revenue Service of a private letter ruling establishing that its existence and ownership of assets do not cause the benefit rights of participants under the Plans to be taxable currently. If such a ruling is denied or if the Internal
Revenue Service declines to issue such a ruling, the Company may revoke the trust and take possession of all assets held by the Trustee for the trust. 
  
 1.03-2 Notwithstanding the provisions of 1.03-1, if any of the events described in 2.01-4 has occurred, the Company may declare the trust
to be irrevocable. 
  
 1.04 Change in Control. 

 
 1.04-1 On a Change in Control described in 1.04-2, the
trust assets shall be held for participants who had benefit rights under the Plans before the Change in Control occurred. If the Company makes contributions for benefits owed to new participants under a Plan following a Change in Control, such
contributions and any insurance contracts or other assets purchased with them shall be held in a new Subtrust separate from the existing Subtrust for previous participants. The existing Subtrust shall cover all the benefits provided by the Plan for
a previous participant, including benefits accrued after the Change in Control. 
  
 1.04-2 A “Change in Control” means the occurrence of any of the following events: 
  
 (a) The approval by the shareholders of the Company of a
Corporate Transaction; 
  
 (b) At any time during
a period of two consecutive years, individuals who at the beginning of such period constituted the board of directors of the Company (“Incumbent Directors”) shall cease for any reason to constitute at least a majority thereof; provided,
however, that the term “Incumbent Director” shall also include each new director elected during such two-year period whose nomination or election was approved by two-thirds of the Incumbent Directors then in office; or 
  

 3 

 (c) Any person (as such term is used in Section 14(d) of the Securities Exchange Act of
1934 (the “Act”), other than the Company or any employee benefit plan sponsored by the Company) shall, as a result of a tender or exchange offer, open market purchases or privately negotiated purchases from anyone other than the Company,
have become the beneficial owner (within the meaning of Rule 13d-3 under the Act), directly or indirectly, of securities of the Company ordinarily having the right to vote for the election of directors (“Voting Securities”) representing
twenty percent (20%) or more of the combined voting power of the then outstanding Voting Securities. 
  
 1.04-3 “Corporate Transaction” means any of the following: 
  
 (a) any consolidation, merger or plan of share exchange involving the Company (a “Merger”) in
which the Company is not the continuing or surviving corporation or pursuant to which shares of Common Stock would be converted into cash, securities or other property, other than a Merger involving shares of Common Stock in which the holders of
shares of Common Stock immediately prior to the Merger have the same proportionate ownership of common stock of the surviving corporation immediately after the Merger; 
  
 (b) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of
all, or substantially all, the assets of the Company; or 
  
 (c) the adoption of any plan or proposal for the liquidation or dissolution of the Company. 
  
 ARTICLE II 
  
 Trust Fund 
  
 2.01 Contributions. 
  
 2.01-1
The Company shall contribute to the trust such amounts as the Committee shall reasonably decide are necessary to provide for all benefits payable under the Plans in cash (“Cash Benefits”), including amounts to purchase the insurance
contracts and to pay premiums and loan interest payments, all as described in 2.02-1. The time of payment of such contributions shall be decided by the Committee, except as provided in 2.01-3. 
  
 2.01-2 If a participant in the DDCP elects under the DDCP to
defer shares of common stock of the Company (“Common Stock”) awarded to the participant under the Company’s Non-Employee Directors Stock Compensation Plan (the “NEDSCP”), promptly after the deferral election becomes
irrevocable the Administrator of the NEDSCP shall cause the Common Stock subject to such irrevocable deferral to be transferred to the Trustee as a contribution to this trust. The Common Stock so contributed shall nevertheless remain subject to
forfeiture under the terms of the NEDSCP prior to vesting under the NEDSCP. If a participant in the DDCP elects under the DDCP to defer Fees (as defined in the DDCP) into the participant’s Stock Account (as defined in the DDCP), the amount of
such Fees deferred to the participant’s Stock Account shall be contributed by the Company to the trust at the time that Fees are paid to other directors who do not elect to defer the payment of such Fees. As soon as practicable after January 1,
1998, the Company shall contribute to the trust a number of shares of Common Stock 

  

 4 

 
equal to the number of shares of Common Stock credited to the Retirement Benefit Accounts (as defined in the DDCP) of all Directors under the DDCP.

  
 2.01-3 The Company shall, upon the occurrence
of any of the events described in 2.01-4 (“Triggering Event”) and annually thereafter if the Triggering Event results in a Change in Control, contribute to the trust the sum of the following: 
  
 (a) The present value of the remaining premiums and the
interest on any policy loan on insurance contracts held in the trust. 
  
 (b) The amount by which the present value of all Cash Benefits payable under the Plans exceeds the value of all trust assets other than those required under 2.02-2 or 2.02-3 to be invested in Common Stock or Acquiror
Stock. Each participant’s Cash Benefit for purposes of calculating present value shall be the highest Cash Benefit the participant would have under the Plan within the twenty-four (24) months following the Triggering Event, assuming that no
changes are made in the participant’s level of income or deferral, that service on the Board continues for twenty-four (24) months at the same rate of compensation, and that the participant receives any benefit enhancement provided by the Plans
upon a Change in Control. The insurance contracts shall be valued at cash surrender value, and other assets of the trust shall be valued at their fair market value. 
  
 (c) A reasonable estimate provided by the Trustee of its fees due over the remaining duration of the trust.

  
 Any contribution to the trust under 2.01-3
due to a Triggering Event shall be returned to the Company one (1) year after delivery of such contribution to the Trustee unless a Change in Control shall have occurred during such one (1) year period, if the Company requests such return within
forty-five (45) days after such one (1) year period. If no such request is made within the forty-five (45) day period, then, subject to 2.03-1, the contribution shall become a permanent part of the trust fund. The one (1) year period shall start
over again in the event of and upon the date of any subsequent Potential Change in Control. A “Potential Change in Control” shall include the events described in 2.01-4(a) or (b). 
  
 2.01-4 The events referred to in 2.01-3 shall include the
following: 
  
 (a) The Company becomes aware that
preliminary or definitive copies of a proxy statement and information statement or other information have been filed with the Securities and Exchange Commission pursuant to Rule 14a-6, Rule 14c-5, or Rule 14f-1 under the Act relating to a Potential
Change in Control of the Company. 
  
 (b) The
delivery to the Company pursuant to Rule 14d-3 under the Act of a Tender Offer Statement relating to Voting Securities of the Company. 
  
 (c) The termination of any of the Plans by the Company or any amendment to any of the Plans which would reduce the accrued benefits
currently provided for under any of such Plans. 
  

 5 

 (d) Failure by the Company to contribute, within sixty (60) days of receipt of a written
notice from the Trustee, the full amount of any insufficiency in trust assets that is required to pay any benefit that is payable upon a direction from the Committee pursuant to 3.02-2. 
  
 2.01-5 The calculations required under 2.01-3 shall be based on the actuarial assumptions set forth in the
attached Exhibit A, which, prior to a Change in Control, may be revised by the Committee from time to time. For purposes of 2.01-3(a), the discount rate shall be the same as the rate applied to determine the present value of all Cash Benefits
payable under the Plans. 
  
 2.01-6 The Trustee
shall accept the contributions made by the Company and shall hold them as a trust fund for the payment of benefits under the Plans. The Trustee shall not be responsible for determining the required amount of contributions or for collecting any
contribution not voluntarily paid. Contributions may be in cash or in kind. 
  
 2.02 Investments. 
  
 2.02-1 Except as provided in 2.02-2 or 2.02-3, the trust fund may be invested in insurance contracts (“Contracts”). Such Contracts may be purchased by the Company and transferred to the Trustee as in-kind
contributions or may be purchased by the Trustee with the proceeds of cash contributions. The purchase and holding of such Contracts shall be an investment directed by the Company, pursuant to 2.02-5. The Company’s contributions to the trust
shall include sufficient cash to make projected premium payments on such Contracts and payments of any interest due on loans secured by the cash value of such Contracts. The Trustee shall have the power to exercise all rights, privileges, options
and elections granted by or permitted under any Contract or under the rules of the insurance company (“Insurer”). Prior to the occurrence of any of the events referred to in 2.01-4, the exercise by the Trustee of any incidents of ownership
under any Contract shall be subject to the direction of the Committee. 
  
 Notwithstanding anything contained herein to the contrary, neither the Company nor the Trustee shall be liable for the refusal of any Insurer to issue or change any Contract or Contracts or to take any other action
requested by the Trustee; nor for the form, genuineness, validity, sufficiency or effect of any Contract or Contracts held in the trust; nor for the act of any person or persons that may render any such Contract or Contracts null and void; nor for
failure of any Insurer to pay the proceeds of any such Contract or Contracts as and when the same shall become due and payable; nor for any delay in payment resulting from any provision contained in any such Contract or Contracts; nor for the fact
that for any reason whatsoever (other than its own negligence or willful misconduct) any Contract or Contracts shall lapse or otherwise become uncollectible. 
  

2.02-2 To the extent that contributions of Common Stock are made to this trust under 2.01-2, the trust fund shall continue to be
invested in such shares of Common Stock. Any cash contributions made to this trust under 2.01-2 shall be invested by the Trustee in Common Stock by purchasing Common Stock under the Company’s Dividend Reinvestment and Stock Purchase Plan (the
“DRSPP”) on the next Investment Date (as defined in the DRSPP). All dividends received on Common Stock held in the trust under this 2.02-2 shall be reinvested in 

  

 6 

 
Common Stock pursuant to the DRSPP. The purchase and holding of Common Stock under this 2.02-2 shall be an investment directed by the Company, pursuant to
2.02-5. 
  
 2.02-3 Notwithstanding 2.02-2,
following a Corporate Transaction, the trust fund shall no longer be invested in Common Stock. Except as provided below, if Common Stock is converted or exchanged in the Corporate Transaction in whole or in part for common stock of the acquiring
company (“Acquiror Stock”), then (a) the trust fund shall continue to be invested in such shares of Acquiror Stock, (b) any cash contributions thereafter made to this trust under 2.01-2 shall be invested by the Trustee in Acquiror Stock by
purchasing Acquiror Stock in the public market as soon as practicable, with related brokerage commissions paid by the Company, and (c) the purchase and holding of Acquiror Stock under this 2.02-3 shall be an investment directed by the Company,
pursuant to 2.02-5. If a participant elects pursuant to Paragraph 3(g)(iv) of the DDCP to transfer the amount credited in the participant’s Stock Account and Retirement Benefit Account to the participant’s Cash Account, then the Trustee
shall sell the number of shares of Acquiror Stock equal to the number of shares then credited to the participant’s Stock Account and Retirement Benefit Account, in the public market as soon as practicable following the effectiveness of such
election, with related brokerage commissions paid by the Company. 
  
 2.02-4 If the Trustee is required to invest cash contributions by purchasing Acquiror Stock in the public market or is required to sell Acquiror Stock in the public market, the following provisions shall apply:

  
 (a) Purchases and sales of Acquiror Stock
shall be made on the date on which the Trustee receives from the Company in good order all information and documentation necessary to accurately effect such purchases and sales (or, in the case of purchases, the subsequent date on which the Trustee
has received a wire transfer of the funds necessary to make such purchases). Purchases and sales of Acquiror Stock shall be made on the open market on such day unless the following applies: 
  
 (i) The Trustee is unable to determine the number of shares
required to be purchased or sold on such day; or 
  
 (ii) If the Trustee is unable to purchase or sell the total number of shares required to be purchased or sold on such day as a result of market conditions; or 
  
 (iii) If the Trustee is prohibited by the Securities and Exchange Commission, the New York Stock Exchange,
or any other regulatory body from purchasing or selling any or all of the shares required to be purchased or sold on such day. 
  
 (b) In the event of the occurrence of the circumstances described in (i), (ii) or (iii) above, the Trustee shall purchase or sell such
shares as soon as possible thereafter and shall determine the price of such purchases or sales to be the average purchase or sale price of all such shares purchased or sold. The Trustee may follow written directions from the Company to deviate from
the above purchase procedures. 
  

 7 

 2.02-5 Except as otherwise required by 2.02-2 or 2.02-3, the Trustee shall invest the
trust fund in accordance with written directions by the Committee. The Trustee shall act only as an administrative agent in carrying out the directed investment transactions and shall not be responsible for the investment decision. If a directed
transaction violates the duty to diversify, to maintain liquidity or to meet any other investment standard under this trust or applicable law, the entire responsibility shall rest upon the Company. The Trustee shall be fully protected in acting upon
or complying with any investment objectives, guidelines, restrictions or directions provided in accordance with this paragraph. 
  
 2.02-6 If the Trustee does not receive instructions from the Committee for the investment of part or all of the trust fund, the Trustee
shall invest it in securities or other property in accordance with applicable law. Permissible investments shall include, but not be limited to, the following: 
  

(a) Preferred or common stocks, notes, debentures, bonds or other securities. 
  
 (b) Mutual funds, money market funds, commercial paper,
savings and loan accounts, certificates of deposit and savings accounts, including deposits bearing a reasonable rate of interest in the savings department of the Trustee. 
  
 (c) Real estate or mortgages. 
  
 2.02-7 The Company shall be responsible for filing appropriate registration forms and all other reports
required under Federal or state securities laws with respect to the ownership by this trust of Common Stock, including, without limitation, any reports required under Section 13 or 16 of the Act, and shall immediately notify the Trustee in writing
of any requirement to stop purchases of Common Stock pending the filing of any report. The Company shall be responsible for the registration of any Plan interests required under Federal or state securities laws. 
  
 2.03 Recapture of Excess Assets. 
  
 2.03-1 In the event any Subtrust shall hold Excess Assets,
the Committee, at its option, may direct the Trustee to return part or all of such Excess Assets to the Company. 
  
 2.03-2 “Excess Assets” are (a) assets of any Subtrust (other than those required under 2.02-2 or 2.02-3 to be invested in Common
Stock or Acquiror Stock) exceeding one hundred twenty-five percent (125%) of the present value of the Cash Benefits due participants in such Subtrust, (b) shares of Common Stock required by 2.02-2 to be held in any Subtrust in excess of the number
of shares of Common Stock then credited to the Stock Accounts and Retirement Benefit Accounts of all participants under the DDCP, and (c) shares of Acquiror Stock required by 2.02-3 to be held in any Subtrust in excess of the number of shares of
Acquiror Stock then credited to the Stock Accounts and Retirement Benefit Accounts of all participants under the DDCP. 
  
 2.03-3 The calculation required by 2.03-2 shall be based on the terms of the Plans and the actuarial assumptions set forth in Exhibit A.
Before a Change in Control, the 

  

 8 

 
calculations shall be made by an actuary selected by the Company. After a Change in Control, the calculations shall be made by an actuary selected by the
Trustee, provided the Committee may select the actuary with the Written Consent of Participants. 
  
 2.04 Subtrusts. 
  
 2.04-1 The Trustee shall establish a Subtrust for each Plan to which it shall credit contributions for that Plan. The account shall
reflect an undivided interest in assets of the trust fund and shall not require any segregation of particular assets, except that an insurance contract covering benefits of a particular Plan shall be held in the Subtrust for that Plan and Common
Stock or Acquiror Stock covering benefits of a particular Plan shall be held in the Subtrust for that Plan. 
  
 2.04-2 The Trustee shall allocate investment earnings and losses of the trust fund among the Subtrusts in proportion to their balances,
except that changes in the value of an insurance contract shall be allocated to the Subtrust for which it is held and changes in the value of, and dividends paid on, Common Stock or Acquiror Stock shall be allocated to the Subtrust for which it is
held. Payments to general creditors during Insolvency Administration under 5.02 shall be charged against the Subtrusts in proportion to their balances, except that the payment of benefits to a Plan participant as a general creditor shall be charged
against the Subtrust for that Plan. 
  
 2.05 Substitution of
Other Property. 
  
 2.05-1 The Company shall
have the power to reacquire part or all of the trust fund (other than fund assets required under 2.02-2 or 2.02-3 to be invested in Common Stock or Acquiror Stock) at any time, by substituting for it other property of equivalent value. Such power is
exercisable in a nonfiduciary capacity. 
  
 2.05-2 The value of any insurance contracts reacquired under 2.05-1 shall be the present value of future projected cash flow of benefits payable under the Contract. The projection shall include death benefits based on reasonable mortality
assumptions. The value of all other assets in the trust fund shall be at their fair market value. Values shall be determined by the Trustee. 
  
 2.06 Administrative Powers of Trustee. 
  
 2.06-1 Subject in all respects to applicable provisions of this Trust Agreement and the Plans, the Trustee shall have the rights, powers
and privileges of an absolute owner when dealing with property of the trust, including (without limiting the generality of the foregoing) the powers listed below: 
  
 (a) To sell, convey, transfer, exchange, partition, lease, and otherwise dispose of any of the assets of the
trust at any time held by the Trustee under this Trust Agreement; 
  
 (b) To exercise any option, conversion privilege or subscription right given the Trustee as the owner of any security held in the trust; to vote any corporate stock, 

  

 9 

 
including Common Stock or Acquiror Stock, either in person or by proxy, with or without power of substitution; to consent to or oppose any reorganization,
consolidation, merger, readjustment of financial structure, sale, lease or other disposition of the assets of any corporation or other organization, the securities of which may be an asset of the trust; and to take any action in connection therewith
and receive and retain any securities resulting therefrom; 
  
 (c) To deposit any security with any protective or reorganization committee, and to delegate to such committee such power and authority with respect thereto as the Trustee may deem proper, and to agree to pay out of
the trust such portion of the expenses and compensation of such committee as the Trustee, in its discretion, shall deem appropriate; 
  
 (d) To cause any property of the trust to be issued, held or registered in the name of the Trustee as trustee, or in the name of one (1)
or more of its nominees, or one (1) or more nominees of any system for the central handling of securities, or in such form that title will pass by delivery, provided that the records of the Trustee shall in all events indicate the true ownership of
such property; 
  
 (e) To renew or extend the
time of payment of any obligation due or to become due; 
  
 (f) To commence or defend lawsuits or legal or administrative proceedings; to compromise, arbitrate or settle claims, debts or damages in favor of or against the trust; to deliver or accept, in either total or partial
satisfaction of any indebtedness or other obligation, any property; to continue to hold for such period of time as the Trustee may deem appropriate any property so received; and to pay all costs and reasonable attorneys’ fees in connection
therewith out of the assets of the trust; 
  
 (g)
To grant options to purchase or to acquire options to purchase any real property; 
  
 (h) To foreclose any obligation by judicial proceeding or otherwise; 
  
 (i) To manage any real property in the trust in the same manner as if the Trustee were the absolute owner
thereof, including the power to lease the same for such term or terms within or beyond the existence of the trust and upon such conditions, including (but not by way of limitation) agreements for the purchase or disposal of buildings thereon and
options to the tenant to renew such lease from time to time, or to purchase such property, as the Trustee may deem proper; 
  
 (j) To borrow money from any person in such amounts, upon such terms and for such purposes as the Trustee, in its discretion, may deem
appropriate; and in connection therewith, to execute promissory notes, mortgages or other obligations and to pledge or mortgage any trust assets as security; and to lend money on a secured or unsecured basis to any person other than a party in
interest; 
  
 (k) To appoint one (1) or more
persons or entities as ancillary trustee or sub-trustee for the purpose of investing in and holding title to real or personal property 

  

 10 

 
or any interest therein located outside the State of North Carolina; provided that any such ancillary trustee or sub-trustee shall act with such power,
authority, discretion, duties, and functions of the Trustee as shall be specified in the instrument establishing such ancillary or sub-trust, including (without limitation) the power to receive, hold and manage property, real or personal, or
undivided interests therein; and the Trustee may pay the reasonable expenses and compensation of such ancillary trustees or sub-trustees out of the trust; 
  
 (l) To deposit any securities held in the trust with a securities depository; 
  
 (m) To hold such part of the assets of the trust uninvested
for such limited periods of time as may be necessary for purposes of orderly account administration or pending required directions, without liability for payment of interest; 
  
 (n) To determine how all receipts and disbursements shall be credited, charged or apportioned as between
income and principal, and the decision of the Trustee shall be final and not subject to question by any participant or beneficiary of the trust; and 
  
 (o) Generally to do all acts, whether or not expressly authorized, which the Trustee may deem necessary or desirable for the orderly
administration or protection of the trust fund. 
  
 2.06-2 The Trustee may engage one (1) or more independent attorneys, accountants, actuaries, appraisers or other experts (the “Experts”) for any purpose, including the determination of Excess Assets. The determination of the
Experts shall be final and binding on the Company, the Trustee, and all of the participants unless within thirty (30) days after receiving a determination deemed by any participant to be adverse, any participant initiates suit in a court of
competent jurisdiction seeking appropriate relief. The Trustee shall have no duty to oversee or independently evaluate the determination of the Experts. The Trustee shall be authorized to pay the fees and expenses of any Experts out of the assets of
the trust fund. 
  
 2.06-3 The Company shall from
time to time pay taxes (references in this Trust Agreement to the payment of taxes shall include interest and applicable penalties) of any and all kinds whatsoever which at any time are lawfully levied or assessed upon or become payable in respect
of the trust fund, the income or any property forming a part thereof, or any security transaction pertaining thereto. To the extent that any taxes levied or assessed upon the trust fund are not paid by the Company or contested by the Company
pursuant to the last sentence of this paragraph, the Trustee shall pay such taxes out of the trust fund, and the Company shall upon demand by the Trustee deposit into the trust fund an amount equal to the amount paid from the trust fund to satisfy
such tax liability. If requested by the Company, the Trustee shall, at the Company’s expense, contest the validity of such taxes in any manner deemed appropriate by the Company or its counsel, but only if it has received an indemnity bond or
other security satisfactory to it to pay any expenses of such contest. Alternatively, the Company may itself contest the validity of any such taxes, but any such contest shall not affect the Company’s obligation to reimburse the trust fund for
taxes paid from the trust fund. 
  

 11 

 2.06-4 In the event a participant’s beneficiary designation results in a participant
or the participant’s spouse being deemed to have made a “generation-skipping transfer” as defined in Section 2611 of the Code, then to the extent that the participant or participant’s “executor,” as said term is defined
in the Code (or the spouse of the participant or said spouse’s statutory executor in the case of a generation-skipping transfer deemed to have been made by a participant’s spouse), have not previously used the total generation-skipping
transfer exemption that is available under Section 2631 of the Code to such transferor, such unused exemption shall be allocated in the manner prescribed by Section 2632 of the Code, except that (a) any generation-skipping transfer resulting from
said beneficiary designation shall be excluded from the allocation; and (b) the method of allocation under Section 2632 shall be reversed so that such unused portion of said transferor’s exemption shall be applied first to trusts or trust
equivalents of which transferor is the deemed transferor and from which taxable distributions occur and, second, to direct skips occurring at said transferor’s death. Any portion of said transferor’s total generation-skipping transfer
exemption not used pursuant to the provisions of the previous sentence shall be allocated to the transfer resulting from the beneficiary designation that gives rise to the generation-skipping transfer hereunder. 
  
 Notwithstanding any provisions in the Plans or this Trust
Agreement to the contrary, the Company and the Trustee may withhold any benefits payable to a beneficiary as a result of the death of the participant or any other beneficiary until such time as (a) the Company or Trustee is able to determine whether
a generation-skipping transfer tax, as defined in Chapter 13 of the Code, or any substitute provision therefor, is payable by the Company or Trustee; and (b) the Company or Trustee has determined the amount of generation-skipping transfer tax that
is due, including interest thereon. If any such tax is payable, the Company or Trustee shall reduce the benefits otherwise payable hereunder to such beneficiary by the amount necessary to provide said beneficiary with a benefit equal to the amounts
that would have been payable if the original benefits had been calculated on the basis of a present value at the time of the generation skipping transfer equal to the then present value of the originally contemplated benefit less an amount equal to
the generation-skipping transfer tax and any interest thereon that is payable as a result of the death in question. The Company or Trustee may also withhold from distribution by further reduction of the then net present value of benefits calculated
in accordance with the terms of the previous sentence such amounts as the Company or Trustee feels are reasonably necessary to pay additional generation-skipping transfer tax and interest thereon from amounts initially calculated to be due. Any
amounts so withheld shall be payable as soon as there is a final determination of the applicable generation-skipping tax and interest thereon. No interest shall be payable by the Company or Trustee to any beneficiary for the period of time that is
required from the date of death to the time when the aforementioned generation-skipping transfer tax determinations are made and the amount of benefits payable to a beneficiary can be fully determined. 
  
 ARTICLE III 
  
 Administration 
  
 3.01 Committee. 
  
 3.01-1 The Committee is the plan administrator for the Plans and has general responsibility to interpret the Plans and determine the
rights of participants and beneficiaries. 
  

 12 

 3.01-2 The Trustee shall be given the names and specimen signatures of the Chairman,
Secretary and members of the Committee. The Trustee shall accept and rely upon the names and signatures until notified of change. Instructions to the Trustee shall be signed for the Committee by the Chairman or such other person as the Committee may
designate. 
  
 3.02 Payment of Benefits. 
  
 3.02-1 The Trustee shall pay benefits to participants and
beneficiaries on behalf of the Company in satisfaction of its obligations under the Plans. Benefit payments from a Subtrust shall be made in full until the assets of the Subtrust are exhausted. Payments due on the date the Subtrust is exhausted
shall be covered pro rata. The Company’s obligation shall not be limited to the trust fund and a participant shall have a claim against the Company for any payment not made by the Trustee. 
  
 3.02-2 The Trustee shall make payments in accordance with
the written direction from the Committee. The Trustee shall make any required income tax withholding and shall pay amounts withheld to taxing authorities on the Company’s behalf or determine that such amounts have been paid by the Company.

  
 3.02-3 A participant’s entitlement to
benefits under the Plans shall be determined by the Committee. Any claim for such benefits shall be considered and reviewed under the claims procedures set out in the Plans. 
  
 3.02-4 The Trustee shall use the assets of the trust or any Subtrust to make benefit payments or other
payments in the following order of priority: 
  
 (a) Common Stock shall be used to pay any benefits required under the Plans to be paid in Common Stock and Acquiror Stock shall be use to pay any benefits required under the Plans to be paid in Acquiror Stock; 
  
 (b) All assets of the trust or Subtrust other than Contracts
with Insurers, in such order as the Committee may request; 
  
 (c) Cash contributions from the Company; and the Company hereby agrees to make cash contributions to the trust to enable the Trustee to make all benefit payments and other payments when due, unless the Company makes
such payments directly, whenever the Trustee advises the Company that the assets of the trust or Subtrust, other than Contracts with Insurers, are insufficient to make such payments; and 
  
 (d) Contracts with Insurers held in the trust or Subtrust; and in using any such Contracts, the Trustee
shall first borrow the cash surrender value of each such Contract, proceeding in order of Contracts from the Contracts which have been in force for the longest times (and in alphabetical order based on the last name of the insured for Contracts
placed in force on the same date) to the Contracts which have most recently been placed in force; and thereafter the Trustee shall surrender Contracts in the same order of priority as set forth above. 
  

 13 

 Notwithstanding the foregoing, the Trustee may use the assets of the trust or any
Subtrust in any other order of priority directed by the Committee with the Written Consent of Participants affected thereby. 
  
 3.03 Records. 
  
 The Trustee shall keep complete records on the trust fund open to inspection by the Company and the Committee at all reasonable times. In
addition to accountings required below, the Trustee shall furnish to the Company and Committee any information requested about the trust fund. 
  
 3.04 Accountings. 
  
 3.04-1 The Trustee shall furnish the Committee with a complete statement of accounts annually within sixty (60) days after the end of the
trust year showing assets and liabilities and income and expense for the year of each Subtrust. The form and content of the account shall be sufficient for the Company to include in computing its taxable income and credits the income, deductions and
credits against tax that are attributable to the trust fund. 
  
 3.04-2 The Committee may object to an accounting within sixty (60) days after it is furnished and require that it be settled by audit by a qualified, independent certified public accountant. The auditor shall be
chosen by the Trustee from a list of at least five (5) such accountants furnished by the Committee at the time the audit is requested. Either the Committee or the Trustee may require that the account be settled by a court of competent jurisdiction,
in lieu of or in conjunction with the audit. All expenses of any audit or court proceedings, including reasonable attorneys’ fees, shall be allowed as administrative expenses of the trust. 
  
 3.04-3 If the Committee does not object to an accounting
within the time provided, the account shall be settled for the period covered by it. 
  
 3.04-4 When an account is settled, it shall be final and binding on all parties, including all participants and persons claiming through
them. 
  
 3.05 Expenses and Fees. 
  
 3.05-1 The Trustee shall be reimbursed for all expenses and
shall be paid a reasonable fee fixed by it from time to time. No increase in the fee shall be effective before sixty (60) days after the Trustee gives notice to the Company of the increase. The Trustee shall notify the Committee periodically of
expenses and fees. 
  
 3.05-2 The Company shall
pay administrative fees or expenses. If not so paid, the fees and expenses shall be paid from the trust fund. The Company shall reimburse the trust fund for any fees and expenses paid out of it. 
  

 14 

 ARTICLE IV 
  
 Liability 
  
 4.01 Indemnity. 
  
 The Company shall indemnify and defend the Trustee from any claim, loss, liability or expense arising from any action or inaction in
administration of this trust based on direction or information from the Committee, absent willful misconduct or bad faith. 
  
 4.02 Bonding. 
  
 The Trustee need not give any bond or other security for performance of its duties under this trust. 
  
 ARTICLE V 
  
 Insolvency 
  
 5.01 Determination of Insolvency. 
  
 5.01-1 The Company is “Insolvent” for purposes of this trust if: 
  
 (a) The Company is unable to pay its debts as they come due; or 
  
 (b) The Company is the subject of a pending proceeding as a
debtor under the Bankruptcy Code. 
  
 5.01-2 The
Chief Executive Officer and the Board of Directors of the Company shall promptly give notice to the Trustee upon becoming Insolvent. If the Trustee receives such notice or receives from any other person claiming to be a creditor of the Company a
written allegation that the Company is Insolvent, the Trustee shall independently determine whether such insolvency exists. The expenses of such determination shall be allowed as administrative expenses of the trust. 
  
 5.01-3 The Trustee shall continue making payments from the
trust fund to participants under the Plans while it is determining the existence of insolvency. Such payments shall cease and the Trustee shall commence “Insolvency Administration” under 5.02 upon the earlier of: 
  
 (a) A determination by the Trustee that the Company is
Insolvent; or 
  
 (b) Thirty (30) days after the
notice or allegation of insolvency is received under 5.01-2, unless the Trustee has determined that the Company is not Insolvent since receipt of such notice or allegation. 
  

 15 

 5.01-4 The Trustee shall have no obligation to investigate the financial condition of the
Company prior to receiving a notice or allegation of insolvency under 5.01-2. 
  
 5.02 Insolvency Administration. 
  
 5.02-1 During Insolvency Administration, the Trustee shall hold the trust fund for the benefit of the general creditors of the Company and make payments only in accordance with 5.02-2. The Trustee shall continue the
investment of the trust fund in accordance with 2.02. 
  
 5.02-2 The Trustee shall make payments out of the trust fund in one (1) or more of the following ways: 
  
 (a) To general creditors in accordance with instructions from a court, or a person appointed by a court, having jurisdiction over the
Company’s condition of insolvency; 
  
 (b)
To Plan participants and beneficiaries in accordance with such instructions; or 
  
 (c) In payment of its own fees or expenses. 
  
 5.02-3 The Trustee shall be a secured creditor with a priority claim to the trust fund with respect to its own fees and expenses.

  
 5.03 Termination of Insolvency Administration.

  
 5.03-1 Insolvency Administration shall
terminate when the Trustee determines that the Company: 
  
 (a) Is not Insolvent, in response to a notice or allegation of insolvency under 5.01-2; or 
  
 (b) Has ceased to be Insolvent. 
  
 5.03-2 Upon termination of Insolvency Administration under 5.03-1, the trust fund shall continue to be held for the benefit of the
participants in the Plans. Benefit payments due during the period of Insolvency Administration shall be made as soon as practicable, together with interest from the due dates at the following rates: 
  
 (a) For the DDCP, the rate credited on the
participant’s account under the DDCP. 
  
 (b) For the Retirement Bylaw, a rate equal to the interest rate fixed by the Pension Benefit Guaranty Corporation for valuing immediate annuities in the preceding month for terminated single employer plans. 
  

 16 

 5.04 Creditors’ Claims During Solvency. 
  
 5.04-1 During periods of Solvency, the Trustee shall hold
the trust fund exclusively to pay benefits and fees and expenses until all have been paid. Creditors of the Company shall not be paid during Solvency from the trust fund, which may not be seized by or subjected to the claims of such creditors in any
way. 
  
 5.04-2 A period of “Solvency”
is any period not covered by 5.02. 
  
 ARTICLE VI 
  
 Successor Trustees 
  
 6.01 Resignation and Removal. 
  
 6.01-1 The Trustee may resign at any time by notice to the
Committee, which shall be effective in sixty (60) days unless the Committee and the Trustee agree otherwise. 
  
 6.01-2 The Trustee may be removed by the Committee on sixty (60) days’ notice or shorter notice accepted by the Trustee. 

 
 6.01-3 When resignation or removal is effective, the
Trustee shall begin transfer of assets to the successor Trustee immediately. The transfer shall be completed within sixty (60) days, unless the Committee extends the time limit. 
  
 6.01-4 If the Trustee resigns or is removed, the Committee shall appoint a successor by the effective date
of resignation or removal under 6.01-1 or 6.01-2. If no such appointment has been made, the Trustee may apply to a court of competent jurisdiction for appointment of a successor or for instructions. All expenses of the Trustee in connection with the
proceeding shall be allowed as administrative expenses of the trust. 
  
 6.02 Appointment of Successor. 
  
 6.02-1 The Committee may appoint any bank or trust company that has total assets in excess of $5 million as a successor to replace the Trustee upon resignation or removal. The appointment shall be effective when accepted in writing by the
new Trustee, who shall have all of the rights and powers of the former Trustee including ownership rights in the trust assets. The former Trustee shall execute any instrument necessary or reasonably requested by the Committee or the successor
Trustee to evidence the transfer. 
  
 6.02-2 The
successor Trustee need not examine the records and acts of any prior Trustee and may retain or dispose of existing trust assets, subject to Article II. The successor Trustee shall not be responsible for and the Company shall indemnify and defend the
successor Trustee from any claim or liability because of any action or inaction of any prior Trustee or any other past event, any existing condition or any existing assets. 
  

 17 

 6.03 Accountings; Continuity. 
  
 6.03-1 A Trustee who resigns or is removed shall submit a final accounting to the Committee as soon as
practicable. The accounting shall be received and settled as provided in 3.04 for regular accountings. 
  
 6.03-2 No resignation or removal of the Trustee or change in identity of the Trustee for any reason shall cause a termination of the Plans
or this trust. 
  
 ARTICLE VII 
  
 General Provisions 
  
 7.01 Interests Not Assignable. 
  
 7.01-1 The interest of a participant in the trust fund may
not be assigned, seized by legal process, transferred or subjected to the claims of the participant’s creditors in any way. 
  
 7.01-2 The Company may not create a security interest in the trust fund in favor of any of its creditors. The Trustee shall not make
payments from the trust fund of any amounts to creditors of the Company who are not Plan participants, except as provided in 5.02. 
  
 7.01-3 The participants shall have no interest in the assets of the trust fund beyond the right to receive payment of Plan benefits and
reimbursement of expenses from such assets subject to the instructions for Insolvency Administration referred to in 5.02-2. During Insolvency Administration the participants’ rights to trust assets shall not be superior to those of any other
general creditor of the Company. 
  
 7.02 Amendment.

  
 The Company and the Trustee may amend this
trust at any time by a written instrument executed by both parties and with the Written Consent of Participants. Notwithstanding the foregoing, any amendment may be made by written agreement of the Company and the Trustee without the Written Consent
of Participants if such amendment will not have a material adverse effect on the rights of any Participant hereunder or is necessary to comply with any laws, regulations or other legal requirements. 
  
 7.03 Applicable Law. 
  
 This trust shall be construed according to the laws of
Oregon except as preempted by federal law. 
  
 7.04 Agreement
Binding on All Parties. 
  
 This agreement
shall be binding upon the heirs, personal representatives, successors and assigns of any and all present and future parties. The term successors as used herein in respect of the Company shall include any corporate or other business entity which
shall, 

  

 18 

 
whether by merger, consolidation, purchase or otherwise, acquire all or substantially all of the business and assets of the Company, and successors of any
such corporation or other business entity. 
  
 7.05 Notices and
Directions. 
  
 Any notice or direction under
this trust shall be in writing and shall be effective when actually delivered or, if mailed, when deposited postpaid as first-class mail. Mail to a party shall be directed to the address stated in this trust or to such other address as either party
may specify by notice to the other party. Notices to the Committee shall be sent to the address of the Company. 
  
 7.06 No Implied Duties. 
  
 The duties of the Trustee shall be those stated in this Trust, and no other duties shall be implied. 
  

									
	 Company:
	 	 	 	NORTHWEST NATURAL GAS COMPANY
					
	 	 	 	 	 	 	By:	 	 /s/ R. G. Reiten 

	 	 	 	 	 	 	 Its:
	 	 Chairman and CEO

	 	 	 	 	 	 	 Executed: December 21, 2001

  

									
	 Trustee:
	 	 	 	WACHOVIA BANK, N.A.
					
	 	 	 	 	 	 	By:	 	 /s/ Beverley H. Wood 

	 	 	 	 	 	 	 Its:
	 	 Senior Vice President

	 	 	 	 	 	 	 Executed: December 26, 2001

  

 19 

  
 EXHIBIT A 
  
 Assumptions and Methodology for 
  
 Calculation Required Under 2.01-3 and 2.03 
  

	1.	The liability will be calculated using two (2) different assumptions as to when the director terminates service on the Board and receives a change of control benefit:

  

	 	a)	As of the date of the Triggering Event. 

  

	 	b)	Twenty-four (24) months after the date of the Triggering Event assuming future compensation continues at current levels. 

  
 The benefit liability will be the greater of the liabilities calculated in
accordance with a) and b) above. 
  

	2.	Calculations will be based upon the most valuable optional form of payment available to the participant. 

  

	3.	The benefit liability is equal to the present value of benefits discounted to the trigger date at the immediate annuity interest rate for termination of single employer plans
established by the Pension Benefit Guaranty Corporation (PBGC) for calculations made on the date of the Triggering Event. 

  

	4.	No mortality is assumed prior to the commencement of benefits. Future mortality is assumed to occur in accordance with the 1983 Group Annuity Table Male rates after the commencement
of benefits. 

  

	5.	Where left undefined by 1. through 4. above, calculations will be performed in accordance with generally accepted actuarial principles. 

  

	6.	For the purposes of projecting deferral account balances, the interest crediting rate on all DDCP Cash Accounts is assumed to remain at the last such PBGC established rate prior to
the date of the Triggering Event. 

  

  
 NORTHWEST NATURAL GAS COMPANY

 UMBRELLA TRUSTTM FOR DIRECTORS 
 AMENDMENT NO. 1 

 
 This Amendment No. 1 to the Northwest Natural Gas Company Umbrella
TrustTM for Directors, effective January 1, 1991
and restated as of December 1, 2001 (the “Trust”), is effective as of February 27, 2003 and has been executed as of this 27th day of February, 2003. 
  

The Trust is hereby amended as follows: 
  
 FIRST: Section 1.02-1 is amended to read as follows: 
  
 1.02-1 This trust shall continue in effect until all the assets of the trust fund are exhausted through distribution of benefits to
participants, reimbursement of benefits paid by the Company pursuant to Section 3.02-5, payment to general creditors in the event of insolvency, payment of fees and expenses of the Trustee, and return of remaining funding of a Subtrust pursuant to
1.02-2. 
  
 SECOND: Section 3.02-1 is amended to read as follows:

  
 3.02-1 Except as provided in 3.02-5, the
Trustee shall pay benefits to participants and beneficiaries on behalf of the Company in satisfaction of its obligations under the Plans. Benefit payments from a Subtrust shall be made in full until the assets of the Subtrust are exhausted. Payments
due on the date the Subtrust is exhausted shall be covered pro rata. The Company’s obligation shall not be limited to the trust fund and a participant shall have a claim against the Company for any payment not made by the Trustee. 

 
 THIRD: Section 3.02-5 is added to read as follows: 
  
 3.02-5 With respect to any benefit payments due to
participants and beneficiaries under the Plans, the Committee may direct by notice in advance to the Trustee that the Company shall make such payments and that the Trustee shall, upon receipt of evidence of such payments satisfactory to the Trustee,
reimburse the Company for such payments from the applicable Subtrust. In such cases, the Company shall make any required income tax withholding and reporting, and shall pay amounts withheld to taxing authorities. 
  
 THIRD: Except as provided herein, all other Trust provisions shall remain in
full force and effect. 
  
 IN WITNESS WHEREOF, the parties have
caused this Amendment No. 1 to be executed as of the date first written above. 
  

			
	 NORTHWEST NATURAL GAS COMPANY

		
	By:	 	 /s/ Mark S. Dodson

	 	 	 President and CEO

	
	 WACHOVIA BANK, N.A.

		
	By:	 	 /s/ Beverley H. Wood

	 	 	 Senior Vice President

  

 NORTHWEST NATURAL GAS COMPANY 
 UMBRELLA TRUSTTM
FOR DIRECTORS 
 AMENDMENT NO. 2 
  
 This Amendment No. 2 to the Northwest Natural Gas Company Umbrella TrustTM for Directors, effective January 1, 1991 and restated as of December 1, 2001 (the “Trust”), is effective as
of February 24, 2005 and has been executed as of this 24th day of February, 2005. 
  
 The Trust is hereby amended as follows: 
  
 FIRST: Section 2.01-1 is amended to read as follows: 
  
 2.01-1 The Company shall contribute to the trust such amounts as the
Committee shall reasonably decide are necessary to provide for all benefits payable under the Plans in cash (“Cash Benefits”). The time of payment of such contributions shall be decided by the Committee, except as provided in 2.01-3.

  
 SECOND: The first paragraph of Section 2.02-1 is amended to
read as follows: 
  
 2.02-1 Except as provided in 2.02-2 or
2.02-3, the trust fund may be invested in insurance contracts (“Contracts”). Such Contracts may be purchased by the Company and transferred to the Trustee as in-kind contributions or may be purchased by the Trustee with the proceeds of
cash contributions. The purchase and holding of such Contracts shall be an investment directed by the Company, pursuant to 2.02-5. The Trustee shall have the power to exercise all rights, privileges, options and elections granted by or permitted
under any Contract or under the rules of the insurance company (“Insurer”). Prior to the occurrence of any of the events referred to in 2.01-4, the exercise by the Trustee of any incidents of ownership under any Contract shall be subject
to the direction of the Committee. 
  
 THIRD: Paragraph 3 of
Exhibit A is amended to read as follows: 
  
 3. The benefit
liability is equal to the present value of benefits discounted to the trigger date at the Applicable Interest Rate determined under Code Sec. 417(e)(3) and the regulations thereunder. The Applicable Interest Rate shall be determined on each December
31 and shall apply to all calculations in the next calendar year. 
  
 FOURTH: Paragraph 4 of Exhibit A is amended to read as follows: 
  
 4. No mortality is assumed prior to the commencement of benefits. Future mortality is assumed to occur in accordance with the mortality table used for purposes of Code Sec. 417(e)(3), as set forth in Rev. Rul. 2001-62
(2001-2 C.B. 632) and subsequent rulings. 
  
 FIFTH: Paragraph 6
of Exhibit A is amended to read as follows: 
  
 6. For the
purposes of projecting deferral account balances, the interest crediting rate on all DDCP Cash Accounts is assumed to remain at the Applicable Interest Rate determined under 3. above. 

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

  
 IN WITNESS WHEREOF, the parties have caused this Amendment No.
2 to be executed as of the date first written above. 
  

			
	 NORTHWEST NATURAL GAS COMPANY

		
	 By:
	 	 /s/ Mark S. Dodson

	 	 	President and CEO
	
	 WACHOVIA BANK, N.A.

		
	 By:
	 	 /s/ Beverley H. Wood

	 	 	Senior Vice President

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