Unitil Completes New Hampshire Water Company Acquisition
Unitil Corporation finalizes purchase of two Aquarion water companies in New Hampshire, closing a deal first announced in May 2025.
Unitil Corporation (NYSE: UTL) closed its acquisition of two New Hampshire water utilities on June 30, 2026, the Hampton-based energy company announced Monday. The deal transfers ownership of Aquarion Water Company of New Hampshire, Inc. and Abenaki Water Co., Inc. from the Aquarion Water Authority to Unitil, marking the company's expansion into the water utility sector.
The Stock Purchase Agreement was originally announced on May 6, 2025, and later amended to narrow the transaction's scope, limiting Unitil's purchase specifically to the two Aquarion Companies rather than a broader portfolio. The amendment signals that negotiations evolved considerably over the roughly 13 months between announcement and closing.
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All conditions required under the amended agreement were materially satisfied by the closing date, including regulatory sign-off from both the New Hampshire and Maine Public Utilities Commissions — a prerequisite that underscores the multi-state regulatory complexity involved even in a geographically concentrated water utility deal.
The acquisition represents a strategic pivot for Unitil, traditionally known as a natural gas and electric distribution company serving customers across New Hampshire and Massachusetts. Adding water utility operations diversifies the company's regulated asset base and could open pathways for further infrastructure investment in the region's water systems.
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