X0303 4 2010-01-08 0 0000073020 NORTHWEST NATURAL GAS CO NWN 0001241405 ANDERSON DAVID HUGO 220 NW SECOND AVENUE PORTLAND OR 97209 0 1 0 0 SVP & CFO Common Stock 2010-01-08 5 G 0 329 0 D 6031.062 I See Footnote Common Stock 2010-01-08 5 G 0 31 0 D 17.882 I See Footnote Common Stock 2010-01-08 5 G 0 329 0 A 25593.77 D Common Stock 2010-01-08 5 G 0 31 0 A 25624.77 D Common Stock 2010-01-08 4 S 0 .996 45.04 D 6030.066 I See Footnote Common Stock 2010-01-08 4 S 0 174 44.6014 D 5856.066 I See Footnote Common Stock 2010-01-08 4 S 0 .882 45.04 D 17 I See Footnote Common Stock 2010-01-08 4 S 0 17 44.6935 D 0 I See Footnote Common Stock 358.9568 I See Footnote Common Stock 491 D Employee Stock Option to Buy 41.15 2019-03-04 Common Stock 8000 8000 D Employee Stock Option to Buy 43.29 2018-03-06 Common Stock 8000 8000 D Employee Stock Option to Buy 44.48 2017-02-28 Common Stock 7000 7000 D Employee Stock Option to Buy 34.29 2016-02-29 Common Stock 8000 8000 D Employee Stock Option to Buy 32.02 2014-09-27 Common Stock 16000 16000 D 329 shares were previously reported as indirectly beneficially owned under the Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives but were contributed to the reporting person's account, which is jointly owned with his spouse, on January 8, 2010. Reflects shares that have been credited to reporting person's account under the issuer's Deferred Compensation Plan for Directors and Executives 31 shares were previously reported as indirectly beneficially owned under the Northwest Natural Gas Company's Executive Deferred Compensation Plan but were contributed the reporting person's account, which is jointly owned with his spouse, on January 8, 2010. Reflects shares that have been credited to reporting person's account under the issuer's Executive Deferred Compensation Plan. These shares represent distribution of fractional shares from the Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives that were cashed out using the fair market value as of December 31, 2009. On December 23, 2009 the reporting person elected to sell a portion of a distribution under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives on January 8, 2010 to pay for tax withholding on a distribution on that date. These shares represent distribution of fractional shares from the Northwest Natural Gas Company's Executive Deferred Compensation Plan that were cashed out using the fair market value as of December 31, 2009. On December 23, 2009 the reporting person elected to sell a portion of a distribution under Northwest Natural Gas Company's Executive Deferred Compensation Plan on January 8, 2010 to pay for tax withholding on a distribution on that date. Shares have been credited to reporting person's account under the issuer's Retirement K Savings Plan as of December 31, 2009. Reflects shares that are held in reporting person's individual account. Option was granted for 8,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 2,000 shares on each February 25, 2010 and January 1, 2011, 2012 and 2013. Option was granted for 8,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 2,000 shares on each February 27, 2009 and January 1, 2010, 2011 and 2012. Option was granted for 7,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 1,750 shares on each February 21, 2008 and January 1, 2009, 2010 and 2011. Option was granted for 8,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 2,000 shares on each February 22, 2007 and January 1, 2008, 2009 and 2010. Option was granted for 16,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 5,400 shares on September 22, 2005 and 5,300 shares on each January 1, 2006 and 2007. MardiLyn Saathoff, Attorney-in-Fact 2010-01-12