Unitil Corporation operates in the Electric and other services combined sector. Unitil Corporation (Unitil) is a public utility holding company. Unitil's is engaged in distribution of electricity and natural gas throughout its service territories in the states of New Hampshire, Massachusetts and Maine. The Company has three wholly owned distribution utilities: Unitil Energy Systems, Inc. (Unitil Energy), Fitchburg Gas and Electric Light Company (Fitchburg), and Northern Utilities, Inc. (Northern Utilities). Unitil operates its business in four segments: utility electric operations, utility gas operations, other, and non-regulated. Its wholly owned subsidiary, Granite State Gas Transmission, Inc. (Granite State), is an interstate natural gas transmission pipeline company that provides interstate natural gas pipeline access and transportation services to Northern Utilities in its New Hampshire and Maine service territory. Together, Unitil's three distribution utilities serve approximately 100,900 electric customers and 70,800 natural gas customers. In our complete report available for purchase the company is compared to: Allete, Inc., CH Energy Group Incorporated and Northwestern Corporation.