X0206 3/A 2014-03-31 2014-04-09 0 0000073020 NORTHWEST NATURAL GAS CO NWN 0001605072 Imeson Thomas J 220 NW SECOND AVENUE PORTLAND OR 97209 0 1 0 0 VP Public Affairs Common Stock 3453 D Revised to correct title of securities. Common stock pursuant to restricted stock units (RSUs) that were granted under Northwest Natural Gas Company's Long Term Incentive Plan. The RSUs vest in three equal installments of shares on each March 31, 2017, 2018 and 2019. Shawn M. Filippi, Attorney-in-Fact 2014-11-24