Unitil Corporation is a public utility holding company that distributes electricity and natural gas to customers in New Hampshire, Massachusetts, and Maine. The company operates through two primary segments: Utility Electric Operations and Utility Gas Operations, maintaining a balanced portfolio of approximately 110,000 electric customers and 105,000 natural gas customers. Its retail distribution is conducted through subsidiaries including Unitil Energy, Fitchburg Gas and Electric Light Company, Northern Utilities, and Bangor Natural Gas. In addition to its local distribution networks, Unitil operates an 85-mile interstate underground natural gas transmission pipeline that provides transportation services across its service territories. The company also provides energy brokering and real estate management services through its non-regulated subsidiaries.