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|View History:  Monthly  Annual Download Data (XLS File)                                     
|View History:  Monthly  Annual                                                               
|View History:  Monthly  Annual                                                               
|View History:                                                                                
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|Montana Natural Gas Price Sold to Electric Power Consumers  (Dollars per Thousand Cubic Feet)
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|Montana Natural Gas Price Sold to Electric Power Consumers  (Dollars per Thousand Cubic Feet)
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|Year                                                                                                                              | Jan   | Feb  | Mar  | Apr  | May  | Jun  | Jul  | Aug  | Sep  | Oct   | Nov   | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ----- | ----- | -----
|2002                                                                                                                              | W     | 4.69 | 4.82 | W    | W    | W    | W    | W    | W    | 3.84  | 5.21  | 6.12 
|2003                                                                                                                              | 5.60  | 6.12 | 5.71 | W    | W    | W    | W    | W    | 6.41 | W     | W     | 8.96 
|2004                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | 8.14 | 6.87  | 11.65 | 10.69
|                                                                                                                                 
|2005                                                                                                                              | 9.68  | W    | W    | 9.50 | 8.70 | W    | W    | W    | W    | 11.90 | 12.94 | W    
|2006                                                                                                                              | 14.19 | W    | W    | W    | 8.24 | W    | W    | W    | 7.74 | W     | W     | 9.70 
|2007                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
|2008                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
|2009                                                                                                                              | W     | 4.58 | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
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|2010                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | 4.88  | W     | W    
|2011                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
|2012                                                                                                                              | W     | W    | W    | 4.01 | --   | 4.45 | W    | W    | W    | W     | W     | W    
|2013                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
|2014                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
|                                                                                                                                 
|2015                                                                                                                              | W     | W    | W    | 2.31 | W    | W    | W    | 2.28 | 2.23 | W     | W     | W    
|2016                                                                                                                              | W     | 1.61 | 1.38 | 1.47 | 1.55 | 1.64 | W    | 1.93 | 2.05 | W     | 2.02  | 2.40 
|2017                                                                                                                              | W     | W    | W    | W    | W    | 2.10 | 1.52 | 1.52 | 1.49 | W     | W     | 1.98 
|2018                                                                                                                              | W     | 1.82 | 1.68 | 1.26 | 1.14 | 1.01 | W    | W    | W    | 1.01  | W     | W    
|2019                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | 2.28 
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|2020                                                                                                                              | W     | W    | 1.01 | 1.65 | 1.65 | 1.56 | 1.64 | W    | W    | W     | W     | W    
|2021                                                                                                                              | W     | W    | W    | W    | W    | W    | W    | W    | W    | W     | W     | W    
|2022                                                                                                                              | 3.93  | 4.31 | 4.41 | 6.09 | 6.62 | 5.30 | 5.00 | 2.17 | 4.13 | 2.33  | 4.95  | 4.94 
|2023                                                                                                                              | 3.13  | 2.35 | 2.64 | 2.23 | 2.09 | 2.15 | 2.21 | 2.60 | 2.62 | 2.34  | 2.33  | 1.53 
|2024                                                                                                                              | 4.09  | 1.40 | 1.42 | 1.09 | 1.06 |      |      |      |      |       |       |      
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|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024