Shareholders of NorthWestern Energy Group Inc. and Black Hills Corp. voted to approve the all‑stock merger on April 2 2026, creating Bright Horizon Energy Corporation, a regulated utility that will serve customers in eight contiguous states.
The transaction values the combined company at an enterprise value of $15.4 billion and a pro‑forma market capitalization of about $7.8 billion. The merged entity will have a rate base of roughly $11.4 billion—$7.0 billion for electric and $4.4 billion for natural gas—while the parties anticipate $100 million in synergies and a $3.21 billion five‑year capital plan for NorthWestern and a $4.7 billion plan for Black Hills that will be funded without shareholder dilution until 2027.
"Shareholder approval underscores the compelling strategic rationale of this merger. Together, we will have enhanced scale, financial strength, and growth opportunities to support safe, reliable, and affordable energy service," said Linn Evans, CEO of Black Hills Corp. "We appreciate the overwhelming support of our shareholders. This transaction will bring together two highly complementary utilities and positions the combined company to deliver long‑term value to customers, shareholders, and the communities we serve," added Brian Bird, CEO of NorthWestern Energy. "Our merger with Black Hills will create a premier regional regulated utility company with a larger, more resilient platform consistent with mid‑cap peers. Together, we will be better positioned to meet rising demand, accelerate investment in energy and grid infrastructure, and support customers and communities through a rapidly evolving energy landscape," Bird continued. "We share a commitment to safety, reliability, integrity, and customer service. We are confident that our closely aligned cultures and skilled workforces will enable us to improve life with energy for the people, businesses, and communities we are privileged to serve," Evans added.
The merger is driven by the desire to build a larger, financially stronger company that can invest in infrastructure and capture growth opportunities, particularly in data‑center and large‑load markets. The combined entity will benefit from economies of scale, a diversified geographic footprint, and a stronger balance sheet that supports the $3.21 billion capital plan without immediate equity dilution. Regulatory approval remains pending from federal agencies and state public service commissions in Montana, Nebraska, and South Dakota, but the shareholder vote removes a major hurdle and brings the transaction closer to the anticipated second‑half 2026 closing.
With the approval in place, the parties will focus on securing the remaining regulatory approvals and finalizing the transaction structure. If all approvals are obtained, Bright Horizon Energy Corporation is expected to close in the second half of 2026, at which point the combined company will begin operating under its new name and governance structure.
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