<SEC-DOCUMENT>0001193125-18-288464-index.html : 20181001
<SEC-HEADER>0001193125-18-288464.hdr.sgml : 20181001
<ACCEPTANCE-DATETIME>
ACCESSION NUMBER:		0001193125-18-288464
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		20
CONFORMED PERIOD OF REPORT:	20181001
ITEM INFORMATION:		Completion of Acquisition or Disposition of Assets
ITEM INFORMATION:		Material Modifications to Rights of Security Holders
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20181001
DATE AS OF CHANGE:		20181001

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:		181095775

	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>d627653d8k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: d627653d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2.1(B)
<SEQUENCE>2
<FILENAME>d627653dex21b.htm
<DESCRIPTION>EX-2.1(B)
<TEXT>
Document 2 - file: d627653dex21b.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-3.1
<SEQUENCE>3
<FILENAME>d627653dex31.htm
<DESCRIPTION>EX-3.1
<TEXT>
Document 3 - file: d627653dex31.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-3.2
<SEQUENCE>4
<FILENAME>d627653dex32.htm
<DESCRIPTION>EX-3.2
<TEXT>
Document 4 - file: d627653dex32.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-3.3
<SEQUENCE>5
<FILENAME>d627653dex33.htm
<DESCRIPTION>EX-3.3
<TEXT>
Document 5 - file: d627653dex33.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>6
<FILENAME>d627653dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 6 - file: d627653dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>7
<FILENAME>d627653dex101.htm
<DESCRIPTION>EX-10.1
<TEXT>
Document 7 - file: d627653dex101.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>8
<FILENAME>d627653dex102.htm
<DESCRIPTION>EX-10.2
<TEXT>
Document 8 - file: d627653dex102.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>9
<FILENAME>d627653dex103.htm
<DESCRIPTION>EX-10.3
<TEXT>
Document 9 - file: d627653dex103.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.4
<SEQUENCE>10
<FILENAME>d627653dex104.htm
<DESCRIPTION>EX-10.4
<TEXT>
Document 10 - file: d627653dex104.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.5
<SEQUENCE>11
<FILENAME>d627653dex105.htm
<DESCRIPTION>EX-10.5
<TEXT>
Document 11 - file: d627653dex105.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.6
<SEQUENCE>12
<FILENAME>d627653dex106.htm
<DESCRIPTION>EX-10.6
<TEXT>
Document 12 - file: d627653dex106.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.7
<SEQUENCE>13
<FILENAME>d627653dex107.htm
<DESCRIPTION>EX-10.7
<TEXT>
Document 13 - file: d627653dex107.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.8
<SEQUENCE>14
<FILENAME>d627653dex108.htm
<DESCRIPTION>EX-10.8
<TEXT>
Document 14 - file: d627653dex108.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.9
<SEQUENCE>15
<FILENAME>d627653dex109.htm
<DESCRIPTION>EX-10.9
<TEXT>
Document 15 - file: d627653dex109.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.10
<SEQUENCE>16
<FILENAME>d627653dex1010.htm
<DESCRIPTION>EX-10.10
<TEXT>
Document 16 - file: d627653dex1010.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.11
<SEQUENCE>17
<FILENAME>d627653dex1011.htm
<DESCRIPTION>EX-10.11
<TEXT>
Document 17 - file: d627653dex1011.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>18
<FILENAME>d627653dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 18 - file: d627653dex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>g627653g04j44.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: g627653g04j44.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>g627653g0924114000294.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: g627653g0924114000294.jpg

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