As a result of the latest hearing, NorthWestern does not need to re-file its general rate case and will work with MPSC staff to determine what additional information is necessary to meet the MPSC’s minimum filing requirements and submit a supplemental filing by January 15, 2010.

The MPSC indicated that it will decide by the end of January whether the supplemental filing meets the MPSC’s minimum filing requirements.

Assuming the supplemental filing is found to meet minimal filing requirements, NorthWestern agreed to extend the timeframe by which the MPSC must issue a final order concerning the general rate filing by 90 days to October 11, 2010.

In its October 16, 2009, rate case filing, NorthWestern proposed a revenue requirement increase of approximately $1.96m for its natural gas utility and approximately $15.5m for its electric utility.

NorthWestern provides electricity and natural gas in the Upper Midwest and Northwest, serving approximately 656,000 customers in Montana, South Dakota and Nebraska.