| Notes |
In the early 1920s, six major electric utilities and many municipal and privately owned local plants were operating in what is now Minnesota Power’s service territory. By 1923, after acquiring and consolidating many regional utilities, the company became known as Minnesota Power and Light Co.
The stock of Minnesota Power and Light was first listed on the New York Stock Exchange in 1950 under the ticker symbol MPL. When the corporate name was changed to ALLETE, Inc. in 2000, the stock’s ticker symbol became ALE. Minnesota Power remains the largest division of ALLETE. |