( August 19, 2025, 13:41 GMT | Official Statement) -- MLex Summary: Rapid City, South Dakota-based Black Hills Corp has agreed to acquire Sioux Falls, South Dakota-based NorthWestern Energy Group in an all-stock merger valued at $3.6 billion. The proposed tie-up will create a regional regulated electric and natural gas utility company. The transaction is expected to close in 12 to 15 months, subject to clearance under the Hart-Scott Rodino Act, and regulatory approval from commissions in the three states in which both companies operate — Montana, Nebraska, South Dakota — and in Arkansas if required, as well as the Federal Energy Regulatory Commission.Statement follows in full. ...
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