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

Black Hills Energy and NorthWestern Energy officials announced Tuesday that the two South Dakota-based companies plan to combine in an all-stock, tax-free merger.

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

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

The South Dakota Supreme Court has declared a judicial emergency in South Dakota. All deadlines, time schedules, due dates ...

The two energy groups announced on Wednesday a merger to create a premier regional electric and natural gas company.

Dow Jones Top Energy Headlines at 11 AM ET: Oil Prices Recover Ground on Inventory Drawdown But Outlook Is Bearish | NorthWestern ... Oil Prices Recover Ground on Inventory Drawdown But Outlook Is ...

The deal is set to be completed in 12-15 months, but the Montana Public Service Commission as well as the utility regulators in Nebraska and South Dakota still need to ...

Black Hills Corp and NorthWestern Energy have announced a $15.4 billion merger aimed at meeting rising energy demands, particularly from the rapid growth of data centers across the region. The two ...

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 ...

NorthWestern Energy and Black Hills say they are combining forces to meet the utility sector's "unprecedented growth." ...

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