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NorthWestern Energy Group (NWE) investor relations material

NorthWestern Energy Group M&A Announcement summary

Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.
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M&A Announcement summary19 Aug, 2025

Deal rationale and strategic fit

  • Creates a premier regional utility platform across eight contiguous states, serving 2.1 million customers and 1,200 communities, with increased scale, business line diversity, and exposure to growth projects in electric and natural gas sectors.

  • Combines two highly complementary businesses with shared cultures, operational excellence, and commitments to safety, reliability, and customer service.

  • Enhanced ability to invest in critical infrastructure, support energy transformation, and deliver cost-effective energy.

  • Scale and diversity ensure no single jurisdiction represents more than 33% of the combined rate base, supporting stable earnings and cash flow.

  • The merger is seen as the right combination at the right time, with decades of prior discussions and a current environment demanding greater scale.

Financial terms and conditions

  • Structured as an all-stock, tax-free transaction with a fixed exchange ratio of 0.98 Black Hills shares for each NorthWestern share, implying a 4% premium, and no transaction-related debt.

  • Black Hills shareholders will own 56% and NorthWestern shareholders 44% of the combined company on a fully diluted basis.

  • Pro forma market capitalization of $7.8 billion and enterprise value of $15.4 billion based on August 18, 2025, closing prices.

  • $11 billion combined rate base and $7.5 billion in planned capital investments over five years, with 75% focused on gas and electric transmission and distribution.

  • Long-term EPS growth target increased to 5%-7%, up from each company's standalone 4%-6%, and the merger is accretive to EPS in the first year post-close.

Synergies and expected cost savings

  • Increased scale expected to drive operational optimization, supply chain procurement, process improvements, and shared systems.

  • Some cost savings and efficiencies are embedded in the 5%-7% EPS growth outlook, though these are described as light.

  • Enhanced negotiating power and leverage in procurement and large customer load opportunities.

  • Operating and cost optimization will support continued investment in safety, reliability, and customer service.

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Frequently asked questions

NorthWestern Energy Group, Inc. (formerly NorthWestern Corporation), doing business as NorthWestern Energy, is a provider of electricity and natural gas. NorthWestern Energy is one of the largest independent energy utilities in the United States. The Company provides electricity and natural gas to residential, commercial, and various industrial customers.

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