<SEC-DOCUMENT>0001193125-23-214346-index.html : 20230816
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<ACCEPTANCE-DATETIME>20230816163101
ACCESSION NUMBER:		0001193125-23-214346
CONFORMED SUBMISSION TYPE:	S-3D
PUBLIC DOCUMENT COUNT:		8
FILED AS OF DATE:		20230816
DATE AS OF CHANGE:		20230816
EFFECTIVENESS DATE:		20230816

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITIL CORP
		CENTRAL INDEX KEY:			0000755001
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				020381573
		STATE OF INCORPORATION:			NH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-274020
		FILM NUMBER:		231178610

	BUSINESS ADDRESS:	
		STREET 1:		6 LIBERTY LANE WEST
		CITY:			HAMPTON
		STATE:			NH
		ZIP:			03842
		BUSINESS PHONE:		6037736504

	MAIL ADDRESS:	
		STREET 1:		6 LIBERTY LANE WEST
		CITY:			HAMPTON
		STATE:			NH
		ZIP:			03842
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Document 1 - file: d602717ds3d.htm

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<DESCRIPTION>EX-5.1
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Document 2 - file: d602717dex51.htm

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<FILENAME>d602717dex232.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: d602717dex232.htm

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<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>4
<FILENAME>d602717dexfilingfees.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
Document 4 - file: d602717dexfilingfees.htm

</DOCUMENT>
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<SEQUENCE>5
<FILENAME>g602717g0816000726064.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g602717g0816000726064.jpg

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<SEQUENCE>6
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<DESCRIPTION>GRAPHIC
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Document 6 - file: g602717g08c68.jpg

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<TEXT>
Document 7 - file: g602717g26w03.jpg

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<DESCRIPTION>GRAPHIC
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Document 8 - file: g602717g26w26.jpg

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