NorthWestern Corporation re-affirmed earnings guidance for the full year of 2021 and provided earnings guidance for the period from second quarter to fourth quarter of 2021. For the period, the company expects reported GAAP EPS to be in the range of $3.38 to $3.58 per share. The company affirmed adjusted Non GAAP EPS to be in the range of $3.40 to $3.60 per diluted share. For second quarter to fourth quarter of 2021, the company expects to report GAAP EPS to be in the range of $2.14 to $2.34.