<SEC-DOCUMENT>0000073020-17-000029-index.html : 20170913
<SEC-HEADER>0000073020-17-000029.hdr.sgml : 20170913
<ACCEPTANCE-DATETIME>20170913171748
ACCESSION NUMBER:		0000073020-17-000029
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20170913
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170913
DATE AS OF CHANGE:		20170913

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15973
		FILM NUMBER:		171083763

	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>8-K
<SEQUENCE>1
<FILENAME>a8-kreportingmtnfmbissuance.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: a8-kreportingmtnfmbissuance.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.(A)
<SEQUENCE>2
<FILENAME>exhibit5alegalopinion.htm
<DESCRIPTION>EXHIBIT 5.(A)
<TEXT>
Document 2 - file: exhibit5alegalopinion.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.(B)
<SEQUENCE>3
<FILENAME>exhibit5bmtnfinancing.htm
<DESCRIPTION>EXHIBIT 5.(B)
<TEXT>
Document 3 - file: exhibit5bmtnfinancing.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>logo_8k12016a04.gif
<TEXT>
Document 4 - file: logo_8k12016a04.gif

</DOCUMENT>
</SEC-DOCUMENT>