<SEC-DOCUMENT>0001193125-17-278093-index.html : 20170907
<SEC-HEADER>0001193125-17-278093.hdr.sgml : 20170907
<ACCEPTANCE-DATETIME>20170906185635
ACCESSION NUMBER:		0001193125-17-278093
CONFORMED SUBMISSION TYPE:	424B2
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170907
DATE AS OF CHANGE:		20170906

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:		424B2
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-214496
		FILM NUMBER:		171072452

	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>424B2
<SEQUENCE>1
<FILENAME>d446196d424b2.htm
<DESCRIPTION>424B2
<TEXT>
Document 1 - file: d446196d424b2.htm

</DOCUMENT>
</SEC-DOCUMENT>