AGREEMENT TO RECOUPMENT PROVISIONS
OF EXECUTIVE ANNUAL INCENTIVE PLAN

This Agreement to Recoupment Provisions is entered into by the undersigned
participant in the Executive Annual Incentive Plan (the “Plan”) of Northwest
Natural Gas Company (the “Company”) effective as of January 1, 2010.

On December __, 2009, the Board of Directors of the Company approved amendments
to the Plan effective January 1, 2010, including the addition to the Plan of
provisions requiring Plan participants to repay Excess Bonus Compensation (as
defined in the Plan) to the Company if the Company’s financial statements for
any year are restated due to Misconduct (as defined in the Plan) of any
person.  These new provisions are included under the heading “RECOUPMENT ON
EARNINGS RESTATEMENT” in the attached copy of the Plan, and will apply to all
annual incentive bonuses paid under the Plan for 2010 and all subsequent years.

In consideration of the annual incentive bonuses to be awarded and paid by the
Company under the Plan to the undersigned participant in 2010 and subsequent
years, the undersigned participant hereby agrees that all of the terms under the
heading “RECOUPMENT ON EARNINGS RESTATEMENT” in the attached copy of the Plan
shall apply to bonuses paid to him or her for 2010 and all subsequent years, and
further agrees to repay any Excess Bonus Compensation at such time as may be
required under the Plan.  The undersigned participant acknowledges and agrees
that his or her execution and delivery of this Agreement is a condition to all
future awards under the Plan.

Signature       _____________________________

Type or Print Name   _____________________________