X0306 4 2013-02-27 0 0000073020 NORTHWEST NATURAL GAS CO NWN 0001329527 Kirkpatrick Margaret D 220 NW SECOND AVENUE PORTLAND OR 97209 0 1 0 0 SVP & General Counsel Common Stock 2013-02-27 4 A 0 849 0 A 8596.6794 D Common Stock 2013-03-01 4 A 0 362 0 A 8958.6794 D Common Stock 517.1813 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 Employee Stock Option to Buy 44.25 2020-03-02 Common Stock 4000 4000 D Employee Stock Option to Buy 45.74 2021-03-02 Common Stock 6500 6500 D Shares are issuable as a result of satisfaction of performance goals for 2010-2012 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date. Shares are issuable as a result of satisfaction of the performance threshold for 2012 under a restricted stock unit award. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date. Shares held in reporting person's account under Northwest Natural Gas Company's Retirement K Savings Plan as of January 31, 2013. 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 fully vested on January 1, 2010. Option was granted for 4,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option fully vested on January 1, 2011. Option was granted for 4,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option fully vested on January 1, 2012. Option was granted for 4,000 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option fully vested on January 1, 2013. 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 24, 2011 and January 1, 2012, 2013 and 2014. Option was granted for 6,500 shares pursuant to Northwest Natural Gas Company's Restated Stock Option Plan (the "Plan"). The option vests in installments of 1,625 shares on each February 23, 2012 and January 1, 2013, 2014 and 2015. Shawn M. Filippi Attorney-in-Fact 2013-03-01