Black Hills and the NorthWestern Energy Group have entered a definitive agreement for an all-stock, tax-free merger that will ...

Black Hills Energy has announced its merger with another Great Plains utility company in response to what it says is a ...

NorthWestern Energy replaced the mighty Montana Power Co. in 1997, which was headquartered in Butte for decades.

Black Hills and NorthWestern Energy will merge in an all-stock deal to form a utility provider serving 2.1 million customers ...

SPEARFISH — Energy President and CEO Linn Evans has announced that the Rapid City-headquartered utility company intends to ...

Black Hills upgraded at Bank of America, which believes its strategic positioning following the merger with NorthWestern Energy is an improvement over the standalone company.

Black Hills Corp. and NorthWestern Energy announced Tuesday an agreement to merge in an all-stock, tax-free transaction ...

The combined company will be worth $15.4 billion, based on each company's closing stock price on Monday, and have about 2.1 ...

Black Hills Energy and NorthWestern Energy officials announced Tuesday that the two South Dakota-based companies plan to ...

A gold rush brought settlers to South Dakota’s Black Hills roughly 150 years ago, chasing the dream of wealth and displacing ...

Black Hills Corp. and NorthWestern Energy have agreed to merge in an all-stock, tax-free deal that will create a $15.4 billion regional regulated utility serving 2.1 million customers across eight ...

Black Hills Energy has announced it will be merging with Midwest-based Northwestern Energy to form a large $7.8 billion ...