<SEC-DOCUMENT>0001193125-17-366251-index.html : 20171211 <SEC-HEADER>0001193125-17-366251.hdr.sgml : 20171211 <ACCEPTANCE-DATETIME>20171211160638 ACCESSION NUMBER: 0001193125-17-366251 CONFORMED SUBMISSION TYPE: 424B5 PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20171211 DATE AS OF CHANGE: 20171211 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: 424B5 SEC ACT: 1933 Act SEC FILE NUMBER: 333-221333 FILM NUMBER: 171249576 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>424B5 <SEQUENCE>1 <FILENAME>d502444d424b5.htm <DESCRIPTION>424B5 <TEXT> Document 1 - file: d502444d424b5.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g502444g87d19.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g502444g87d19.jpg
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