1 2010 Annual Meeting of Shareholders This presentation contains “forward-looking statements” made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include statements regarding Unitil Corporation’s financial condition, results of operations, capital expenditures, business strategy, regulatory strategy, market opportunities, and other plans and objectives. In some cases, forward-looking statements can be identified by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue”, the negative of such terms, or other comparable terminology. These forward-looking statements are neither promises nor guarantees, but involve risks and uncertainties that could cause the actual results to differ materially from those set forth in the forward-looking statements. Those risks and uncertainties include: the Company’s ability to retain existing customers and gain new customers; variations in weather and major storms; recovery of deferred major storm costs; recovery of energy commodity costs; changes in the regulatory environment; customers’ preferences on energy sources; interest rate fluctuation and credit market concerns; general economic conditions; fluctuations in supply, demand, transmission capacity and prices for energy commodities; increased competition; customers’ performance under multi-year energy brokering contracts; and other risks detailed in the Company’s filings with the Securities and Exchange Commission, including those appearing under the caption Risk Factors in the Company’s Annual Report on Form 10-K for the year ended December 31, 2009. Readers should not place undue reliance on any forwarding looking statements, which speak only as of the date they are made. The Company undertakes no obligation to update any forward-looking statements to reflect any change in the Company’s expectations or in events, conditions, or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward- looking statements. Robert G. Schoenberger Chairman, President & Chief Executive Officer Presentation by Presentation by | 
