 HAMPTON, N.H., Aug. 02, 2021 GLOBE NEWSWIRE -- Unitil Corporation NYSE: UTL announced today that its New Hampshire natural gas distribution utility, Northern Utilities New Hampshire, Northern or the Company filed a base rate case with the New Hampshire Public Utilities Commission the Commission requesting approval to change distribution rates for all customers. This filing will be subject to comprehensive review by the Commission in a base rate case proceeding that may last up to a year or more. The Companys last base rate case was filed in 2017. 