HAMPTON, N.H., July 29 /EMWNews/ -- Unitil Corporation

(Amex: UTL) (http://www.unitil.com) today announced that it has filed an

application to list its common stock, no par value (the "Common Stock"), on

the New York Stock Exchange (the "NYSE"). The Company anticipates that its

Common Stock will begin trading on the NYSE on August 21, 2008. Unitil

Corporation will retain its current symbol, "UTL." Until that time, shares

of Unitil Corporation Common Stock will continue to trade on the American

Stock Exchange.



    "Unitil's transfer to the NYSE is an important milestone for our

Company and a complement to our pending acquisition of Northern Utilities

and Granite State Gas Transmission," said Robert G. Schoenberger, Chairman

and Chief Executive Officer of Unitil Corporation. "We are excited about

our new relationship with the NYSE as we look forward to a continued and

consistent long-term growth in both capitalization and earnings. We would

also like to thank the American Stock Exchange for many years of service

and support."



    "We are pleased to welcome Unitil Corporation to our family of listed

companies," said Catherine R. Kinney, Group EVP and Head of Global

Listings, NYSE Euronext. "We look forward to an outstanding partnership

with Unitil Corporation and to providing the company with the highest

levels of brand visibility and services."

    About Unitil:



    Unitil is a public utility holding company with subsidiaries providing

electric distribution service in New Hampshire, electric and gas

distribution service in Massachusetts and energy services throughout the

northeast. Its subsidiaries include Unitil Energy Systems, Inc., Fitchburg

Gas and Electric Light Company, Unitil Power Corp., Unitil Realty Corp.,

Unitil Service Corp. and its non-regulated business segment Unitil

Resources, Inc. Usource L.L.C., which provides energy brokering services to

large energy users in the Northeast, is a subsidiary of Unitil Resources,

Inc.



    On February 15, 2008, Unitil entered into a Stock Purchase Agreement

with NiSource Inc. ("NiSource") and Bay State Gas Company ("Bay State"), a

wholly owned utility subsidiary of NiSource, to acquire all of the

outstanding stock of Northern Utilities, Inc. ("Northern"), and Granite

State Gas Transmission, Inc. ("Granite State") for $160 million plus a net

working capital adjustment. Northern's principal business is the retail

distribution of natural gas to approximately 53,000 customers located in 44

coastal New Hampshire and southern Maine communities. Portions of

Northern's natural gas service territory are contiguous and overlapping

with Unitil's electric distribution service territory in New Hampshire.

Granite State is a natural gas transmission company, principally engaged in

the business of providing natural gas transportation services to Northern

for its access to natural gas pipeline supplies.



    This press release contains forward-looking statements, which are

subject to the inherent uncertainties in predicting future results and

conditions. All statements, other than statements of historical fact, are

forward-looking statements. Certain factors that could cause the actual

results to differ materially from those projected in these forward-looking

statements include, but are not limited to the following: variations in

weather; changes in the regulatory environment; customers' preferences on

energy sources; general economic conditions; increased competition;

fluctuations in supply, demand, transmission capacity and prices for energy

commodities; and other uncertainties, all of which are difficult to

predict, and many of which are beyond the control of Unitil Corporation.



    For more information, visit Unitil at http://www.unitil.com or contact Mark

Collin at 603-773-6612.






    Contact:  Mark H. Collin

              Phone: 603-773-6612

              Fax:  603-773-6605

              Email:  [email protected]