X0303 4 2009-11-13 0 0000073020 NORTHWEST NATURAL GAS CO NWN 0001329527 Kirkpatrick Margaret D 220 NW SECOND AVENUE PORTLAND OR 97209 0 1 0 0 VP & General Counsel Common Stock 2009-11-13 4 S 0 132.4459 42.585 D 1.2608 I See Footnote Common Stock 2009-11-17 4 S 0 1.2608 44.34 D 0 I See Footnote Common Stock 4943.33 D Common Stock 269.7405 I See Footnote Common Stock 196.0370 I See Footnote Employee Stock Option to Buy 38.3 2015-08-03 Common Stock 6000 6000 D Employee Stock Option to Buy 34.29 2016-02-29 Common Stock 5000 5000 D Employee Stock Option to Buy 44.48 2017-02-28 Common Stock 4000 4000 D Employee Stock Option to Buy 43.29 2018-03-06 Common Stock 4000 4000 D Employee Stock Option to Buy 41.15 2019-03-04 Common Stock 4000 4000 D Held in account for reporting person's spouse. Shares held in reporting person's account under Northwest Natural Gas Company's Retirement K Savings Plan as of October 31, 2009. Held in separate account for reporting person's spouse. Option was granted for 6,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option fully vested on January 1, 2008. Option was granted for 5,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 1,250 shares on each February 22, 2007 and January 1, 2008, 2009 and 2010. Option was granted for 4,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 1,000 shares on each February 21, 2008 and January 1, 2009, 2010 and 2011. Option was granted for 4,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 1,000 shares on each February 27, 2009 and January 1, 2010, 2011 and 2012. Option was granted for 4,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 1,000 shares on each February 25, 2010 and January 1, 2011, 2012 and 2013. MardiLyn Saathoff, Attorney-in-Fact 2009-11-17