<SEC-DOCUMENT>0001193125-17-018906-index.html : 20170126
<SEC-HEADER>0001193125-17-018906.hdr.sgml : 20170126
<ACCEPTANCE-DATETIME>20170126082255
ACCESSION NUMBER:		0001193125-17-018906
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20170125
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170126
DATE AS OF CHANGE:		20170126

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08858
		FILM NUMBER:		17548104

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d337551d8k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: d337551d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d337551dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: d337551dex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g337551g0125164450252.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g337551g0125164450252.jpg

</DOCUMENT>
</SEC-DOCUMENT>