<SEC-DOCUMENT>0001193125-19-166743-index.html : 20190606 <SEC-HEADER>0001193125-19-166743.hdr.sgml : 20190606 <ACCEPTANCE-DATETIME>20190606085333 ACCESSION NUMBER: 0001193125-19-166743 CONFORMED SUBMISSION TYPE: 11-K PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20181231 FILED AS OF DATE: 20190606 DATE AS OF CHANGE: 20190606 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: 11-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-08858 FILM NUMBER: 19881573 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>11-K <SEQUENCE>1 <FILENAME>d759361d11k.htm <DESCRIPTION>FORM 11-K <TEXT> Document 1 - file: d759361d11k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.1 <SEQUENCE>2 <FILENAME>d759361dex231.htm <DESCRIPTION>EX-23.1 <TEXT> Document 2 - file: d759361dex231.htm
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