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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-18-028247
Filing Date
2018-02-01
Accepted
2018-02-01 06:55:58
Documents
94
Period of Report
2017-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K d499165d10k.htm 10-K 1332896
2 EX-11.1 d499165dex111.htm EX-11.1 12054
3 EX-12.1 d499165dex121.htm EX-12.1 28296
4 EX-21.1 d499165dex211.htm EX-21.1 1361
5 EX-23.1 d499165dex231.htm EX-23.1 1826
6 EX-31.1 d499165dex311.htm EX-31.1 9187
7 EX-31.2 d499165dex312.htm EX-31.2 9149
8 EX-31.3 d499165dex313.htm EX-31.3 9159
9 EX-32.1 d499165dex321.htm EX-32.1 5858
10 EX-99.1 d499165dex991.htm EX-99.1 67554
17 GRAPHIC g499165g62e17.jpg GRAPHIC 68687
18 GRAPHIC g499165g62g77.jpg GRAPHIC 27957
  Complete submission text file 0001193125-18-028247.txt   9614925

Data Files

Seq Description Document Type Size
11 XBRL INSTANCE DOCUMENT utl-20171231.xml EX-101.INS 2153420
12 XBRL TAXONOMY EXTENSION SCHEMA utl-20171231.xsd EX-101.SCH 85972
13 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE utl-20171231_cal.xml EX-101.CAL 96145
14 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE utl-20171231_def.xml EX-101.DEF 564195
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE utl-20171231_lab.xml EX-101.LAB 721723
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE utl-20171231_pre.xml EX-101.PRE 648133
Mailing Address 6 LIBERTY LANE WEST HAMPTON NH 03842
Business Address 6 LIBERTY LANE WEST HAMPTON NH 03842 6037736504
UNITIL CORP (Filer) CIK: 0000755001 (see all company filings)

IRS No.: 020381573 | State of Incorp.: NH | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-08858 | Film No.: 18564621
SIC: 4931 Electric & Other Services Combined