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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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|Percent of Industrial Natural Gas Deliveries in Montana Represented by the Price  (Percent)
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|Percent of Industrial Natural Gas Deliveries in Montana Represented by the Price  (Percent)
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|Year                                                                                                                              | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
|--------------------------------------------------------------------------------------------------------------------------------- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|2001                                                                                                                              | 3.0 | 3.1 | 2.8 | 2.6 | 2.3 | 1.9 | 0.9 | 0.8 | 1.0 | 1.2 | 1.9 | 3.0
|2002                                                                                                                              | 3.0 | 2.9 | 3.6 | 2.3 | 2.0 | 1.2 | 0.9 | 0.7 | 0.8 | 1.1 | 2.1 | 3.4
|2003                                                                                                                              | 2.9 | 2.8 | 3.3 | 2.1 | 1.8 | 1.0 | 1.0 | 0.8 | 0.8 | 0.6 | 1.2 | 1.6
|2004                                                                                                                              | 1.8 | 2.4 | 1.9 | 1.0 | 1.5 | 1.4 | 1.1 | 0.7 | 0.8 | 1.1 | 1.8 | 2.4
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|2005                                                                                                                              | 3.1 | 2.9 | 2.2 | 2.3 | 1.8 | 1.4 | 0.9 | 0.6 | 0.7 | 1.0 | 1.3 | 2.3
|2006                                                                                                                              | 1.3 | 1.0 | 1.1 | 0.9 | 0.6 | 0.4 | 0.2 | 0.1 | 0.2 | 0.3 | 0.6 | 1.0
|2007                                                                                                                              | 1.0 | 1.2 | 0.9 | 0.9 | 0.5 | 0.4 | 0.3 | 0.3 | 0.4 | 0.5 | 0.7 | 1.0
|2008                                                                                                                              | 1.3 | 1.4 | 1.8 | 1.1 | 0.9 | 0.5 | 0.6 | 0.5 | 0.5 | 0.4 | 0.8 | 0.9
|2009                                                                                                                              | 2.5 | 1.7 | 1.5 | 1.2 | 0.8 | 0.5 | 0.3 | 0.3 | 0.4 | 0.6 | 1.0 | 1.8
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|2010                                                                                                                              | 2.3 | 2.4 | 2.3 | 1.8 | 1.4 | 0.5 | 0.7 | 0.6 | 0.6 | 1.5 | 1.0 | 2.0
|2011                                                                                                                              | 1.9 | 3.3 | 2.1 | 1.3 | 0.9 | 0.6 | 0.5 | 0.5 | 0.4 | 0.5 | 1.7 | 1.3
|2012                                                                                                                              | 1.5 | 2.0 | 1.2 | 1.2 | 0.5 | 0.4 | 0.3 | 0.4 | 0.7 | 0.8 | 1.4 | 1.3
|2013                                                                                                                              | 1.5 | 1.6 | 1.4 | 1.3 | 0.7 | 0.7 | 0.6 | 0.9 | 0.7 | 0.6 | 1.4 | 2.3
|2014                                                                                                                              | 2.4 | 3.6 | 1.8 | 1.2 | 0.6 | 0.9 | 0.4 | 0.5 | 1.0 | 1.5 | 1.4 | 1.0
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|2015                                                                                                                              | 1.6 | 1.9 | 1.5 | 1.4 | 1.0 | 1.9 | 1.1 | 1.0 | 0.8 | 1.5 | 1.6 | 1.5
|2016                                                                                                                              | 2.1 | 2.1 | 1.9 | 1.7 | 1.4 | 0.8 | 1.1 | 0.7 | 0.9 | 1.7 | 1.5 | 2.5
|2017                                                                                                                              | 2.8 | 2.8 | 1.7 | 2.0 | 1.5 | 1.0 | 0.7 | 0.9 | 0.8 | 0.9 | 1.4 | 1.2
|2018                                                                                                                              | 2.1 | 2.4 | 2.4 | 1.9 | 1.1 | 0.7 | 0.7 | 0.8 | 0.7 | 1.1 | 1.3 | 2.0
|2019                                                                                                                              | 2.0 | 2.6 | 3.3 | 1.6 | 1.3 | 1.0 | 0.8 | 0.9 | 0.8 | 1.3 | 1.5 | 1.9
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|2020                                                                                                                              | 1.8 | 2.0 | 2.3 | 1.6 | 0.9 | 0.7 | 0.4 | 0.4 | 0.6 | 0.6 | 1.7 | 1.8
|2021                                                                                                                              | 1.7 | 2.4 | 2.2 | 1.7 | 1.2 | 0.9 | 0.6 | 0.7 | 0.6 | 0.8 | 1.0 | 1.5
|2022                                                                                                                              | 2.6 | 2.1 | 2.1 | 2.0 | 1.7 | 1.0 | 0.8 | 1.0 | 0.7 | 1.0 | 1.6 | 1.8
|2023                                                                                                                              | 2.3 | 2.1 | 2.7 | 2.3 | 1.4 | 0.9 | 0.6 | 1.1 | 0.8 | 0.9 | 1.7 | 1.8
|2024                                                                                                                              | 1.9 | 1.9 | 1.8 | 1.8 | 1.2 |     |     |     |     |     |     |    
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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