Attached files

file filename
EX-99.1 - EX-99.1 - UNITIL CORPd599927dex991.htm
EX-32.1 - EX-32.1 - UNITIL CORPd599927dex321.htm
EX-31.3 - EX-31.3 - UNITIL CORPd599927dex313.htm
EX-31.2 - EX-31.2 - UNITIL CORPd599927dex312.htm
EX-31.1 - EX-31.1 - UNITIL CORPd599927dex311.htm
EX-21.1 - EX-21.1 - UNITIL CORPd599927dex211.htm
EX-11.1 - EX-11.1 - UNITIL CORPd599927dex111.htm
10-K - FORM 10-K - UNITIL CORPd599927d10k.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-168394, and 333-221333 on Form S-3 and Nos. 333-184849 and 333-42266 on Form S-8 of our report dated January 31, 2019, relating to the consolidated financial statements of Unitil Corporation and subsidiaries and the effectiveness of Unitil Corporation and subsidiaries’ internal control over financial reporting, appearing in this Annual Report on Form 10-K of Unitil Corporation for the year ended December 31, 2018.

/s/ Deloitte and Touche LLP

January 31, 2019

Boston, Massachusetts