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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 South Dakota Represented by the Price  (Percent)
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|Percent of Industrial Natural Gas Deliveries in South Dakota Represented by the Price  (Percent)
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|Year                                                                                                                              | Jan  | Feb  | Mar  | Apr  | May  | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec 
|--------------------------------------------------------------------------------------------------------------------------------- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ----
|2001                                                                                                                              | 51.1 | 54.8 | 52.4 | 50.8 | 35.1 | 32.7 | 28.6 | 26.5 | 24.1 | 33.3 | 45.5 | 44.5
|2002                                                                                                                              | 16.4 | 18.6 | 13.2 | 18.4 | 14.1 | 10.7 | 9.5  | 9.0  | 19.5 | 27.6 | 30.6 | 34.9
|2003                                                                                                                              | 26.3 | 24.4 | 27.3 | 26.0 | 23.9 | 22.4 | 24.7 | 23.3 | 25.3 | 24.8 | 26.8 | 29.1
|2004                                                                                                                              | 29.0 | 28.5 | 30.0 | 24.4 | 26.1 | 28.2 | 22.6 | 27.6 | 24.8 | 27.2 | 33.3 | 31.0
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|2005                                                                                                                              | 28.5 | 28.0 | 33.6 | 26.7 | 31.6 | 26.1 | 28.9 | 31.7 | 27.8 | 30.4 | 33.3 | 35.8
|2006                                                                                                                              | 38.6 | 36.4 | 37.5 | 31.3 | 39.2 | 30.3 | 27.6 | 30.1 | 27.8 | 31.5 | 33.7 | 35.4
|2007                                                                                                                              | 33.8 | 31.8 | 31.3 | 15.2 | 16.2 | 12.1 | 13.7 | 11.4 | 11.2 | 14.9 | 15.9 | 20.9
|2008                                                                                                                              | 21.2 | 20.1 | 21.9 | 17.8 | 14.6 | 13.7 | 16.9 | 11.3 | 12.8 | 9.9  | 15.6 | 25.7
|2009                                                                                                                              | 18.2 | 17.3 | 18.5 | 15.2 | 13.1 | 13.4 | 11.1 | 11.1 | 4.5  | 11.2 | 16.5 | 20.4
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|2010                                                                                                                              | 20.7 | 15.6 | 17.0 | 12.3 | 10.1 | 11.8 | 9.6  | 4.6  | 3.6  | 3.6  | 4.4  | 6.5 
|2011                                                                                                                              | 6.8  | 6.7  | 6.5  | 5.2  | 3.8  | 3.2  | 2.8  | 2.3  | 3.0  | 3.6  | 5.4  | 5.6 
|2012                                                                                                                              | 6.5  | 6.6  | 5.9  | 3.9  | 2.9  | 2.7  | 2.3  | 2.8  | 3.5  | 4.0  | 4.2  | 5.6 
|2013                                                                                                                              | 6.2  | 6.5  | 6.0  | 5.7  | 4.1  | 2.8  | 2.2  | 2.1  | 1.9  | 3.9  | 8.3  | 10.4
|2014                                                                                                                              | 5.6  | 6.7  | 7.0  | 5.7  | 3.9  | 2.7  | 2.3  | 1.7  | 1.7  | 3.0  | 6.8  | 6.9 
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|2015                                                                                                                              | 6.8  | 6.6  | 7.1  | 4.2  | 3.5  | 2.6  | 2.2  | 2.4  | 2.1  | 3.0  | 5.8  | 5.6 
|2016                                                                                                                              | 6.7  | 6.7  | 5.8  | 4.5  | 3.6  | 2.9  | 2.3  | 1.9  | 1.9  | 3.1  | 6.7  | 6.7 
|2017                                                                                                                              | 6.5  | 7.2  | 5.3  | 4.1  | 2.7  | 2.4  | 2.3  | 1.9  | 1.7  | 2.5  | 5.9  | 8.6 
|2018                                                                                                                              | 6.4  | 6.3  | 6.6  | 5.1  | 4.0  | 1.9  | 1.7  | 2.0  | 1.6  | 4.3  | 6.1  | 8.3 
|2019                                                                                                                              | 6.3  | 7.1  | 8.3  | 5.2  | 3.3  | 2.5  | 1.9  | 1.5  | 1.6  | 2.7  | 6.8  | 11.7
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|2020                                                                                                                              | 8.3  | 6.7  | 6.1  | 5.4  | 4.2  | 2.6  | 1.5  | 1.3  | 1.3  | 2.4  | 3.8  | 4.1 
|2021                                                                                                                              | 4.4  | 5.7  | 6.0  | 3.5  | 2.9  | 1.7  | 1.2  | 1.4  | 1.4  | 2.8  | 4.5  | 5.0 
|2022                                                                                                                              | 5.1  | 5.1  | 5.7  | 4.1  | 3.3  | 3.0  | 1.3  | 0.9  | 1.2  | 2.1  | 3.4  | 4.3 
|2023                                                                                                                              | 5.9  | 5.3  | 5.7  | 4.4  | 3.0  | 2.1  | 1.7  | 1.5  | 1.8  | 2.8  | 6.1  | 6.7 
|2024                                                                                                                              | 5.1  | 6.4  | 4.8  | 4.1  | 3.3  |      |      |      |      |      |      |     
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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