| # | Acquired | Date | Type | Status | Price | |
|---|---|---|---|---|---|---|
| 1 |
NorthWestern Energy
For more than 100 years, NorthWestern Energy continues to deliver the energy and…
|
2025-08-19 | Merge | Pending | $3.6B | Deal → |
| 2 |
SourceGas
SourceGas is a natural gas local distribution utility that services nearly 415,0…
|
2015-07-13 | Acquisition | Complete | $1.9B | Deal → |
| 3 |
C
Cheyenne Light, Fuel & Power
Cheyenne Light, Fuel & Power is produces, markets, and delivers electricity, coa…
|
2005-01-25 | Acquisition | Complete | — | Deal → |