South Dakota regulators approve Black Hills Energy, NorthWestern merger
The new utility will be named Bright Horizon Energy, with an estimated total value of $15.4 billion and 2.1 million customers in eight states. |!| Rapid City
The new utility will be named Bright Horizon Energy, with an estimated total value of $15.4 billion and 2.1 million customers in eight states. |!| Rapid City