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Black Hills Corporation Acquires NorthWestern Energy: A New Era

NorthWestern Energy acquired by Black Hills Corporation

Acquisition

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Acquired

NorthWestern Energy

Utilities

Undisclosed amount

August 19, 2025

Black Hills Corporation logo
Acquirer

Black Hills Corporation

Utilities

Black Hills Corporation, an energy company, has acquired NorthWestern Energy for an undisclosed amount. NorthWestern Energy, a utility company, has a long history of providing reliable and affordable energy to customers across Montana, South Dakota, and Nebraska for over a century. The company currently serves more than 709,000 residential and business customers with electricity and natural gas.

This acquisition represents a significant strategic move for Black Hills Corporation, expanding its operational footprint and customer base within the energy sector. NorthWestern Energy’s established presence and deep roots in its service territories align with Black Hills Corporation’s focus on utility operations. The integration is expected to yield operational efficiencies and enhance service delivery across the combined portfolio.

The strategic rationale behind this acquisition centers on geographic expansion and leveraging NorthWestern Energy’s robust infrastructure and customer relationships. By bringing NorthWestern Energy into its fold, Black Hills Corporation aims to strengthen its position as a leading energy provider in the region. Expected synergies include optimized resource allocation, shared best practices in energy management, and potentially improved long-term cost structures for consumers.

Looking ahead, the combined entity is poised to enhance its capacity to deliver essential energy services to a broader customer base. This integration is anticipated to create a more resilient and efficient energy network, reinforcing a commitment to continued reliable and affordable service for communities in Montana, South Dakota, and Nebraska. The focus will remain on operational excellence and meeting the evolving energy needs of customers.

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Renewable Energy
Energy Efficiency Services
Customer Service Solutions
Safety and Emergency Preparedness
Charitable Giving Initiatives

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