Attached files

file filename
10-K - FORM 10-K - UNITIL CORPd499165d10k.htm
EX-99.1 - EX-99.1 - UNITIL CORPd499165dex991.htm
EX-32.1 - EX-32.1 - UNITIL CORPd499165dex321.htm
EX-31.3 - EX-31.3 - UNITIL CORPd499165dex313.htm
EX-31.2 - EX-31.2 - UNITIL CORPd499165dex312.htm
EX-31.1 - EX-31.1 - UNITIL CORPd499165dex311.htm
EX-23.1 - EX-23.1 - UNITIL CORPd499165dex231.htm
EX-12.1 - EX-12.1 - UNITIL CORPd499165dex121.htm
EX-11.1 - EX-11.1 - UNITIL CORPd499165dex111.htm

Exhibit 21.1

Subsidiaries of Registrant

The Company or the registrant has eight wholly-owned subsidiaries, seven of which are corporations organized under the laws of the State of New Hampshire: Unitil Energy Systems, Inc., Northern Utilities, Inc., Granite State Gas Transmission, Inc., Unitil Power Corp., Unitil Realty Corp., Unitil Resources, Inc. and Unitil Service Corp. The eighth, Fitchburg Gas and Electric Light Company, is organized under the laws of the Commonwealth of Massachusetts. Usource, Inc., which is a corporation organized under the laws of the State of Delaware, is a wholly-owned subsidiary of Unitil Resources, Inc. Usource, Inc. is the sole member of Usource L.L.C., which is a limited liability company formed under the laws of the State of Delaware.