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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-22-023936
Filing Date
2022-02-01
Accepted
2022-02-01 06:49:41
Documents
96
Period of Report
2021-12-31

Document Format Files

Seq Description Document Type Size
1 10-K d276476d10k.htm   iXBRL 10-K 3228372
2 EX-4.50 d276476dex450.htm EX-4.50 10669
3 EX-10.15 d276476dex1015.htm EX-10.15 503591
4 EX-10.21 d276476dex1021.htm EX-10.21 8213
5 EX-11.1 d276476dex111.htm EX-11.1 11032
6 EX-21.1 d276476dex211.htm EX-21.1 1489
7 EX-23.1 d276476dex231.htm EX-23.1 2167
8 EX-31.1 d276476dex311.htm EX-31.1 10298
9 EX-31.2 d276476dex312.htm EX-31.2 10265
10 EX-31.3 d276476dex313.htm EX-31.3 10270
11 EX-32.1 d276476dex321.htm EX-32.1 6745
12 EX-99.1 d276476dex991.htm EX-99.1 78048
18 GRAPHIC g276476g0122081404718.jpg GRAPHIC 12160
19 GRAPHIC g276476g0122081405062.jpg GRAPHIC 3752
20 GRAPHIC g276476g76e71.jpg GRAPHIC 4448
21 GRAPHIC g276476g92b71.jpg GRAPHIC 71623
  Complete submission text file 0001193125-22-023936.txt   15949925

Data Files

Seq Description Document Type Size
13 XBRL TAXONOMY EXTENSION SCHEMA utl-20211231.xsd EX-101.SCH 82775
14 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE utl-20211231_cal.xml EX-101.CAL 56169
15 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE utl-20211231_def.xml EX-101.DEF 579214
16 XBRL TAXONOMY EXTENSION LABEL LINKBASE utl-20211231_lab.xml EX-101.LAB 657773
17 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE utl-20211231_pre.xml EX-101.PRE 640828
90 EXTRACTED XBRL INSTANCE DOCUMENT d276476d10k_htm.xml XML 3592020
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.: 22576842
SIC: 4931 Electric & Other Services Combined