Black Hills and NorthWestern Energy said on Tuesday they would merge, creating a $15.4 billion regulated electric and natural ...

NorthWestern shareholders will receive 0.98 shares of Black Hills for each held. Black Hills stockholders would own roughly ...

Black Hills and NorthWestern Energy Group on Tuesday announced an all-stock merger with an enterprise value of $15.4 billion.

(Reuters) -Utility company Black Hills said on Tuesday it would buy peer NorthWestern Energy for $3.6 billion, creating a larger regulated utility with greater scale to invest in grid infrastructure ...