<SEC-DOCUMENT>0000073020-17-000021-index.html : 20170627 <SEC-HEADER>0000073020-17-000021.hdr.sgml : 20170627 <ACCEPTANCE-DATETIME>20170627172308 ACCESSION NUMBER: 0000073020-17-000021 CONFORMED SUBMISSION TYPE: 11-K PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20161231 FILED AS OF DATE: 20170627 DATE AS OF CHANGE: 20170627 FILER: COMPANY DATA: COMPANY CONFORMED NAME: NORTHWEST NATURAL GAS CO CENTRAL INDEX KEY: 0000073020 STANDARD INDUSTRIAL CLASSIFICATION: NATURAL GAS DISTRIBUTION [4924] IRS NUMBER: 930256722 STATE OF INCORPORATION: OR FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 11-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-15973 FILM NUMBER: 17933178 BUSINESS ADDRESS: STREET 1: ONE PACIFIC SQUARE STREET 2: 220 NW SECOND AVE CITY: PORTLAND STATE: OR ZIP: 97209 BUSINESS PHONE: 5032264211 MAIL ADDRESS: STREET 1: 220 NW SECOND AVENUE CITY: PORTLAND STATE: OR ZIP: 97209 </SEC-HEADER> <DOCUMENT> <TYPE>11-K <SEQUENCE>1 <FILENAME>form11-k2016.htm <DESCRIPTION>11-K <TEXT> Document 1 - file: form11-k2016.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23 <SEQUENCE>2 <FILENAME>exhibit23consent11-k2016.htm <DESCRIPTION>EXHIBIT 23 <TEXT> Document 2 - file: exhibit23consent11-k2016.htm
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