Violation Tracker Parent Company Summary

Parent Company Name: 
NorthWestern Corp.
Ownership Structure: 
publicly traded (ticker symbol NWE)
Headquartered in: 
South Dakota
Major Industry: 
utilities and power generation
Specific Industry: 
Penalty total since 2000: 
Number of records: 
Top 10 Primary Offense TypesPenalty TotalNumber of Records
energy market violation$1,450,0002
workplace safety or health violation$119,8004
environmental violation$6,8001

Parent-subsidiary linkages are based on relationships current as of the latest revision listed in the Update Log, which may vary from what was the case when a violation occurred. The penalty totals are adjusted to account for the fact that the individual entries below may include both agency records and settlement announcements for the same case; or else a penalty covering multiple locations may be listed in the individual records for each of the facilities. The totals are also adjusted to reflect cases in which federal and state agencies cooperated and issued separate announcements of the outcome. Duplicate or overlapping penalty amounts are marked with an asterisk in the list below.

Associated Names: 



Subsidy Tracker data on financial assistance to this company by federal, state and local government agencies can be found here.

Individual Penalty Records:

Click on the company or penalty amount for more information on each case.
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Company Primary Offense Type Year Agency Penalty Amountsort icon
Northwestern Corporation energy market violation 2007 FERC $1,000,000
NorthWestern Corporation and NorthWestern Services, LLC energy market violation 2008 FERC $450,000
NORTHWESTERN ENERGY, INC. workplace safety or health violation 2007 OSHA $55,000
NORTHWESTERN ENERGY workplace safety or health violation 2010 OSHA $37,800
NORTHWESTERN ENERGY workplace safety or health violation 2007 OSHA $20,000
NORTHWESTERN ENERGY workplace safety or health violation 2008 OSHA $7,000
Northwestern Energy environmental violation 2004 EPA $6,800
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