Black Hills Corporation has agreed to acquire NorthWestern Energy Group in an all-stock transaction valued at $3.6 billion. The merger will create a combined regulated electric and natural gas utility valued at $15.4 billion. This larger entity aims to enhance its capacity to invest in grid infrastructure and address the increasing power demand across the United States. The deal is part of a broader trend in the U.S. utilities sector, which has seen over $60 billion in mergers and acquisitions year-to-date as companies seek to scale operations and meet surging energy needs. The transaction underscores ongoing consolidation in the utility industry to better position firms for future infrastructure investments and growing energy consumption.