425: Black Hills, NorthWestern Energy Announce All-Stock Merger

Black Hills Corporation and NorthWestern Energy Group, Inc. will combine in an all-stock, tax-free merger to create a premier regional regulated electric and natural gas utility company.

Summary

• Black Hills Corporation (BKH) and NorthWestern Energy Group, Inc. (NWE) have unanimously approved an all-stock, tax-free merger.
• NorthWestern shareholders will receive a fixed exchange ratio of 0.98 shares of Black Hills common stock for each NorthWestern share.
• The exchange ratio implies an approximately 4% premium based on the volume-weighted average price of each company's common stock since March 2025.
• Black Hills shareholders will retain their existing number of shares in the combined company.
• Upon completion, Black Hills shareholders will own approximately 56% and NorthWestern shareholders approximately 44% of the combined company on a fully diluted basis.
• The combined entity, to be named 'NewCo' with a new ticker symbol, will be headquartered in Rapid City, South Dakota.
• The transaction is expected to close in 12 to 15 months, subject to shareholder and regulatory approvals.

Sentiment

Score: 9

Explanation: The filing presents a highly positive outlook for the merger, emphasizing significant strategic and financial benefits, including EPS accretion, increased growth rates, enhanced scale, and improved financial strength. Risks are acknowledged but framed as general forward-looking statements rather than specific impediments to the deal's success.

Positives

• The merger creates a pure-play, regulated, vertically integrated utility with enhanced scale and diverse customer and fuel mix, serving approximately 2.1 million customers across eight contiguous states.
• The combination doubles each company's rate base to a total of approximately $11.4 billion, with $7.0 billion in electric and $4.4 billion in natural gas.
• Combined investment plans from 2025 to 2029 exceed $7 billion, focused on critical infrastructure and energy resilience.
• The increased scale is expected to drive operating and cost efficiencies across the combined enterprise.
• The combination is expected to be accretive to each company's EPS in the first year following the close of the transaction.
• The combined company supports an increased long-term EPS target growth rate of 5% to 7%, higher than either company individually (4-6%).
• Strong and predictable cash flows and more efficient access to capital are expected to enhance credit quality and support a strong, growing dividend.
• The combined company will benefit from a constructive and diversified regulatory environment, with no single jurisdiction representing greater than 33% of the combined business.
• The merger brings together complementary cultures and skilled workforces, enhancing the ability to retain, attract, and develop employees with opportunities for career advancement.
• The combined company commits to ongoing community support and advancing a clean energy future through emissions reduction and investments in renewable energy and modernizing infrastructure.

Risks

• Delays in consummating the potential transaction, including as a result of required regulatory and shareholder approvals, which may not be obtained on the expected timeline, or at all.
• Any event, change, or other circumstance that could give rise to the termination of the merger agreement.
• Required regulatory approvals being subject to conditions not anticipated by Black Hills and NorthWestern Energy.
• The possibility that any of the anticipated benefits and projected synergies of the potential transaction will not be realized or will not be realized within the expected time period.
• Disruption to the parties' businesses as a result of the announcement and pendency of the transaction, including potential distraction of management from current plans and operations and the ability to retain and hire key personnel.
• Reputational risk and the reaction of each company's customers, suppliers, employees, or other business partners to the transaction.
• The possibility that the transaction may be more expensive to complete than anticipated, including as a result of unexpected factors or events.
• The outcome of any legal or regulatory proceedings that may be instituted against Black Hills or NorthWestern Energy related to the merger agreement or the transaction.
• Risks associated with third-party contracts containing consent and/or other provisions that may be triggered by the proposed transaction.
• Legislative, regulatory, political, market, economic, and other conditions, developments, and uncertainties affecting Black Hills or NorthWestern Energy's businesses.
• The evolving legal, regulatory, and tax regimes under which Black Hills and NorthWestern Energy operate.
• Restrictions during the pendency of the proposed transaction that may impact Black Hills or NorthWestern Energy's ability to pursue certain business opportunities or strategic transactions.
• Unpredictability and severity of catastrophic events, including extreme weather, natural disasters, acts of terrorism, or outbreak of war or hostilities.

Future Outlook

The combined company anticipates increased scale and financial strength to meet rising energy demand, accelerate investment in energy and grid infrastructure, and support customers and communities through an evolving energy landscape. It expects to achieve a long-term EPS target growth rate of 5% to 7% and maintain a strong investment-grade credit profile with substantial cash flows. The company also foresees additional investment opportunities beyond current plans, particularly in addressing growing demand from data centers.

Management Comments

• Linn Evans, Black Hills Corp. President and CEO: "We are excited to bring our two highly complementary companies together to create significant long-term value for customers, employees, shareholders, and the communities we serve. Our future success will be driven equally by the people, assets, and capabilities of both organizations. The combined company will have greater scale and financial strength to consistently deliver for customers across our service territories and invest at the pace and scale that today's energy transformation demands. Our vision is to be the energy partner of choice for our customers, communities, and investors, and this merger will accelerate our ability to achieve this goal."
• Brian Bird, NorthWestern Energy President and CEO: "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. NorthWestern and Black Hills are best-in-class operators, and we are confident that our closely aligned cultures and skilled workforces will enable us to successfully bring the companies together. We will remain a trusted energy partner to our customers and look forward to building a brighter future for the people, businesses, and communities we are privileged to serve."

Industry Context

This merger reflects a trend towards consolidation in the regulated utility sector, driven by the need for increased scale to manage rising energy demand, accelerate investments in grid infrastructure, and navigate the energy transformation. The focus on contiguous service territories and diversified regulatory environments aligns with strategies to enhance resilience and ensure competitive rates amidst evolving market conditions and technological advancements, such as the growing demand from data centers.

Comparison to Industry Standards

• The combined company's pro forma market capitalization of approximately $7.8 billion and combined enterprise value of $15.4 billion position it as a larger, more resilient platform consistent with mid-cap peers.
• The increased long-term EPS target growth rate of 5% to 7% for the combined company is greater than the 4% to 6% individually targeted by Black Hills and NorthWestern on a standalone basis, indicating a projected outperformance relative to their previous individual trajectories.
• Both companies have demonstrated track records of operational excellence, including above-industry-average SAIDI (System Average Interruption Duration Index) and DART (Days Away, Restricted, or Transferred) rates, and NorthWestern is in the top quartile for AGA (American Gas Association) leaks per 1,000 miles of pipe, suggesting the combined entity will maintain high operational standards.
• The combined company aims for a strong investment-grade credit quality, which is a key benchmark for stability and access to capital in the utility sector.

Management Changes

Corporate Governance

Legal Proceedings

• The filing mentions the risk of any legal or regulatory proceedings that may be instituted against Black Hills or NorthWestern Energy related to the merger agreement or the transaction.

Related Party Transactions

• The filing states that, except as set forth in the Black Hills Disclosure Letter and NorthWestern Disclosure Letter, there are no transactions or series of related transactions or Contracts, nor any currently proposed transactions, between Black Hills or any Black Hills Subsidiary (or NorthWestern or any NorthWestern Subsidiary) and any current or former director or executive officer or 5% beneficial owner (or their immediate family/affiliates) of the type required to be reported in any SEC Report pursuant to Item 404 of Regulation S-K.

Stakeholder Impact

• **Shareholders**: NorthWestern shareholders receive a 4% premium based on recent trading, and both sets of shareholders are expected to benefit from EPS accretion in the first year and an increased long-term EPS growth rate (5-7%). The combined company aims to support a strong and growing dividend.
• **Employees**: The combined company is committed to being an employer of choice, providing competitive compensation and comprehensive benefits, and offering enhanced opportunities for career advancement. It will maintain a highly skilled workforce and strong operational presence.
• **Customers**: Customers are expected to benefit from extending shared best practices across the combined service territory, process improvements, shared systems, and coordinated operations, leading to continued investment in safety, reliability, and customer service, and ensuring long-term competitive rates.
• **Communities**: The combined company will continue to be an active part of the communities served, maintaining a strong local workforce and supporting civic and philanthropic organizations across its combined service area.
• **Suppliers/Creditors**: The combined company's enhanced scale, predictable cash flows, and strong investment-grade credit profile are expected to benefit creditors. Supplier relationships are expected to continue, though the filing notes a risk of adverse changes due to the announcement.

Next Steps

• File a registration statement on Form S-4 with the SEC to register the shares of Black Hills common stock to be issued.
• File a joint proxy statement of Black Hills and NorthWestern Energy with the SEC.
• Obtain approval from each company's shareholders.
• Obtain regulatory approvals from the Federal Energy Regulatory Commission (FERC), the Montana Public Service Commission, the Nebraska Public Service Commission, the South Dakota Public Utilities Commission, and potentially the Arkansas Public Service Commission.
• Clearance under the Hart-Scott-Rodino Antitrust Improvements Act.
• Determine the new combined company name and ticker symbol prior to closing.
• Develop transition and integration implementation plans for post-closing business operations.
• Black Hills will cause its articles of incorporation to be amended to increase authorized shares and reflect the new corporate name.
• Black Hills will cause its bylaws to be amended to reflect the new corporate name and the creation of an operations committee.
• NewCo will file an effective registration statement on Form S-8 with the SEC for the shares underlying assumed equity awards.
• Facilitate the delisting of NorthWestern and its common stock from Nasdaq and deregistration under the Exchange Act after the Effective Time.

Key Dates

Recommendation

The all-stock merger between Black Hills and NorthWestern Energy presents a compelling long-term investment opportunity. The transaction is structured to be accretive to EPS for both companies in the first year, with a significantly increased long-term EPS growth target of 5-7%. The doubling of the rate base to $11.4 billion provides a robust foundation for future regulated growth, including substantial capital investment plans exceeding $7 billion focused on critical infrastructure and addressing new demand sources like data centers. The enhanced scale and diversification across eight contiguous states are expected to drive operational efficiencies, strengthen the balance sheet, and improve access to capital, supporting a high-quality investment-grade credit profile and a strong, growing dividend. While regulatory approvals and integration risks exist, the strategic rationale and financial benefits outlined suggest a strong potential for value creation for shareholders.

Keywords

Utility Merger, Electric Utility, Natural Gas Utility, Black Hills Corporation, NorthWestern Energy, BKH, NWE, SEC Filing, Corporate Acquisition, Energy Infrastructure, Regulated Utility, Shareholder Approval, Regulatory Approval, EPS Accretion, Rate Base, Capital Expenditure, Dividend Policy, Corporate Governance, Management Change