Black Hills and NorthWestern Energy to combine in $15.4 billion deal
Aug 19 (Reuters) - Black Hills BKH.N and NorthWestern Energy Group NWE.O on Tuesday announced an all-stock merger with an enterprise value of $15.4 billion. (Reporting by Vallari Srivastava in Bengaluru; Editing by Shilpi Majumdar) ((Srivastava.Vallari@thomsonreuters.com;))