<SEC-DOCUMENT>0000073020-23-000005-index.html : 20230629
<SEC-HEADER>0000073020-23-000005.hdr.sgml : 20230629
<ACCEPTANCE-DATETIME>20230629144212
ACCESSION NUMBER:		0000073020-23-000005
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20221231
FILED AS OF DATE:		20230629
DATE AS OF CHANGE:		20230629

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:		231056674

	BUSINESS ADDRESS:	
		STREET 1:		250 SW TAYLOR STREET
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97204
		BUSINESS PHONE:		5032264211

	MAIL ADDRESS:	
		STREET 1:		250 SW TAYLOR STREET
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97204
</SEC-HEADER>
<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>form11-k2022.htm
<DESCRIPTION>11-K
<TEXT>
Document 1 - file: form11-k2022.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>2
<FILENAME>exhibit23consent11-k2022.htm
<DESCRIPTION>EX-23
<TEXT>
Document 2 - file: exhibit23consent11-k2022.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image.jpg
<TEXT>
Document 3 - file: image.jpg

</DOCUMENT>
</SEC-DOCUMENT>