Wildlands Music 2026 Wildlands Music 2026 Wildlands Music 2026
Print Subscriptions
Newsletter Sign Up
  • News
    • Local
    • Bozeman
    • Regional
    • Business
    • Real Estate
    • Outlaw Partners News
  • Arts & Entertainment
  • Opinion
  • Sports
  • Yellowstone
  • Events
Menu
  • News
    • Local
    • Bozeman
    • Regional
    • Business
    • Real Estate
    • Outlaw Partners News
  • Arts & Entertainment
  • Opinion
  • Sports
  • Yellowstone
  • Events

South Dakota-based Black Hills Corp. plans to buy NorthWestern Energy

in Regional
South Dakota-based Black Hills Corp. plans to buy NorthWestern Energy

The NorthWestern Energy building in Butte. PHOTO BY NORA SAKS / MONTANA PUBLIC RADIO

EBS Staffby EBS Staff
August 20, 2025

Montana’s Public Service Commission will get to weigh in on the sale.

By Tom Lutey MONTANA FREE PRESS

South Dakota-based Black Hills Corp. is acquiring Northwestern Energy.

The two utilities announced their all-stock transaction Tuesday. In the $3.6 billion deal, the power shifts to Black Hills, which emerges as the majority owner in a new company, with Black HIlls’ home base of Rapid City being the new company’s headquarters. Each share of NorthWestern Energy stock would convert to 0.98 shares in the yet-to-be-named new company. Black Hills shares, meanwhile, would be weighed as they are currently. The resulting mix will be 56% Black Hills to 44% NorthWestern. Black Hills will have six directors to NorthWestern’s five on a new corporate board.

Wildlands Music Festival in Big Sky, Montana July 31 through August 1 2026 Wildlands Music Festival in Big Sky, Montana July 31 through August 1 2026 Wildlands Music Festival in Big Sky, Montana July 31 through August 1 2026
ADVERTISEMENT

NorthWestern CEO Brian Bird will lead the company once the transaction is final in a year to 15 months, and Black Hills CEO Linn Evans will retire, according to a press release.

During a joint conference call Tuesday, executives for the companies said they’ve considered teaming up before. Increased expectations for significant growth in the industry prompted Tuesday’s action.

“From our perspective, it’s just what’s happening in the utility space today, and this expectation of significant growth, something we haven’t seen in the last two decades, and the necessity to be able to capture that scale is going to be extremely important for us,” Bird said.

The transaction, with power in the arrangement flowing to Black Hills, and the uptick in today’s stock prices going mostly to NorthWestern, behaves more like a sale than a merger, said investment adviser Gary Buchanan, of Buchanan Capital in Billings. 

“It kind of shows in the price movement for the day, right? NorthWestern is up three bucks, three and a half. Black Hills is up 40, 50 cents,” Buchanan said. “You have two underperforming companies with overpaid executives rationalizing a merger.” 

Over the past five years, Black Hills Corp.’s five-year compound annual growth rate for revenue is 5.77%, NorthWestern’s is 3.77%. Bird’s annual compensation is roughly $4.8 million to Evans’ $5.7 million, Buchanan said. 

The Montana Public Service Commission will get to weigh in on the sale. 

“Public interest. We will be weighing that,” said PSC Chairman Brad Molnar on Tuesday. Molnar was on the commission in 2006 when NorthWestern attempted to sell to Babcock and Brown Infrastructure, an Australian company. Heavily scrutinized by Montana’s utility commission at the time, the deal fell through.

The challenge for the PSC, said Anne Hedges of the Montana Environmental Information Center, will be making sure that NorthWestern’s Montana customers aren’t shouldering the Black Hills’ costs in other states.

“This is a company that has invested in more renewables lately than NorthWestern. That’s encouraging. This is a company that has a lot of oil and gas and coal in its portfolio. This is a company that is very scattered across the region between its gas operations and electric operations, which is going to make it very difficult to not only manage but differentiate,” Hedges said. “It is going to be critical that the Public Service Commission insulate Montanans from any of the potential risks of the rest of that portfolio.”

Bird told reporters Tuesday morning that NorthWestern’s plans for accepting more shares of Colstrip Power Plant from departing coowners at year’s end isn’t changing.

Natural gas comprises the bulk of Black Hills’ customer base, with more 1.1 million natural gas customers in eight states from Arkansas to Canada. Black Hills electric customers number roughly 225,000, mostly in South Dakota, Wyoming and Colorado. A small number of southeast Montana customers are served by Black Hills.

Conversely, NorthWestern Energy has more electric customers, roughly 478,700, with roughly 80% in Montana and the remainder in South Dakota. The company serves roughly 308,300 natural gas customers, roughly 70% of which are in Montana, with the remainder in South Dakota and Nebraska.Although the directors of both companies have agreed to terms, an investor rights law firm, Halper Sadeh, announced Tuesday that it is looking into whether NorthWestern obtained the best possible terms for its shareholders and whether Black Hills is underpaying.

Yellowstone National Park Lodge Yellowstone National Park Lodge
picture of a yellowstone geser with the words
ADVERTISEMENT

Listen

Outlaw Beat Podcast

Joe Borden & Michele Veale Borden

See All Episodes
outlaw realty montana outlaw realty montana
ADVERTISEMENT
Outlaw Realty Big Sky Bozeman
ADVERTISEMENT

Upcoming Events

Jan 21
6:00 pm - 8:00 pm Event Series

Pickup Ultimate Frisbee

Jan 21
7:00 pm - 9:30 pm Event Series

Trivia at the Waypoint

Jan 23
6:30 am - 7:30 am Event Series

AA Morning Meditation Group

Jan 23
5:30 pm - 7:00 pm

Stories of Coyote, the Trickster by Theatrical Storyteller Kellen Trenal

Jan 23
7:00 pm - 10:00 pm Event Series

Opera Montana Presents: Ragtime

View Calendar
Event Calendar

Related Posts

GVLT partnership permanently conserves 190 acres near South Cottonwood Creek
Regional

GVLT partnership permanently conserves 190 acres near South Cottonwood Creek

January 20, 2026
Bozeman Schools Foundation launches 7th annual Pack the Sack campaign to aid student hunger
Bozeman News

Bozeman Schools Foundation launches 7th annual Pack the Sack campaign to aid student hunger

January 20, 2026
Montana State Library hosting Blind Date with the Archives in February
Bozeman News

Montana State Library hosting Blind Date with the Archives in February

January 20, 2026
Three Forks debuts Bridger Brewskis and Spurs Skijoring Competition
Regional

Three Forks debuts Bridger Brewskis and Spurs Skijoring Competition

January 16, 2026

An Outlaw Partners Publication

Facebook-f Instagram X-twitter Youtube

Explore Big Sky

  • About/Contact
  • Advertise
  • Publications
  • Print Subscriptions
  • Podcast
  • Submissions

Outlaw Brands

  • Mountain Outlaw
  • Plan Yellowstone
  • Big Sky PBR
  • Wildlands Music
  • Outlaw Partners
  • Outlaw Realty
  • Hey Bear

Copyright © 2025 Explore Big Sky | Terms of Use | Privacy Policy | Your Privacy Choices

No Result
View All Result
  • News
    • Bozeman News
    • Regional
    • Business
    • Outlaw Partners News
  • Yellowstone
  • Arts & Entertainment
  • Sports
  • Opinion
  • Real Estate
  • Events

©2024 Outlaw Partners, LLC. All Rights Reserved.

Explore Big Sky Logo
  • News
    • Local
    • Bozeman
    • Regional
    • Business
    • Real Estate
    • Outlaw Partners News
  • Arts & Entertainment
  • Opinion
  • Sports
  • Yellowstone
  • Events
Subscribe
Newsletter Sign Up
Facebook X-twitter Instagram Youtube