Unitil Files for an Increase in Natural Gas Distribution Rates for Maine Customers

HAMPTON, N.H., May 31, 2017 -- Unitil Corporation (NYSE:UTL) (www.unitil.com) announced today that its Maine local natural gas distribution utility filed a rate case requesting approval to increase its natural gas distribution base rates with the Maine Public Utilities Commission.

Unitil has requested an increase of $6.0 million in base revenue, or an increase of approximately 7 percent over total operating revenue, for effect on July 1, 2017 but expects a Commission suspension period through March 1, 2018. The filing also includes a proposal to renew and expand the Targeted Infrastructure Replacement Adjustment tariff for a period of four years which will allow the recovery of costs associated with operational and safety-related improvements and upgrades Unitil is making to its gas distribution system in Maine.

If the rates are approved as filed, the typical residential gas heating customer using an average of 63 ccfs (or 65 therms) would see a monthly increase of $8.66, or about 9 percent.  Impacts on other individual customers will vary depending upon rate class and usage characteristics.

About Unitil Corporation

Unitil Corporation provides energy for life by safely and reliably delivering natural gas and electricity in New England. We are committed to the communities we serve and to developing people, business practices, and technologies that lead to the delivery of dependable, more efficient energy. Unitil Corporation is a public utility holding company with operations in Maine, New Hampshire and Massachusetts. Together, Unitil’s operating utilities serve approximately 104,300 electric customers and 79,900 natural gas customers. Other subsidiaries include Usource, Unitil’s non-regulated business segment. For more information about our people, technologies, and community involvement please visit www.unitil.com.

For more information please contact:                                                                                                                                                  
David Chong – Investor Relations
Phone: 603-773-6499
Email:  [email protected]

Alec O’Meara – Media Relations                                                                                                
Phone: 603-773-6404                                        
Email:  [email protected]