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|View History: Monthly Download Data (XLS File)                                                              
|View History: Monthly                                                                                        
|View History: Monthly                                                                                        
|View History:                                                                                                
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|Minnesota Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Minnesota Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Year                                                                                                                              | Jan   | Feb   | Mar   | Apr   | May   | Jun   | Jul   | Aug   | Sep   | Oct   | Nov  | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ---- | -----
|1991                                                                                                                              | -9.2  | 15.0  | -0.3  | -19.3 | -19.7 | -9.3  | -1.7  | -4.1  | -2.7  | -5.2  | -8.5 | 6.3  
|1992                                                                                                                              | 8.7   | 18.6  | 1.8   | -25.1 | -13.0 | -11.2 | -9.4  | -1.0  | 0.5   | 1.8   | 5.3  | -1.4 
|1993                                                                                                                              | 1.3   | -17.1 | -29.0 | -19.2 | -19.0 | -13.4 | -5.9  | -7.8  | -2.5  | 1.2   | -1.7 | -7.0 
|1994                                                                                                                              | -16.3 | -4.2  | 19.8  | 7.9   | 8.4   | 10.5  | 6.2   | 9.4   | 4.5   | 0.7   | 3.9  | 16.7 
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|1995                                                                                                                              | 23.8  | 4.8   | -0.7  | 11.5  | 6.8   | -3.5  | -6.0  | -4.1  | 0.0   | 0.3   | 0.4  | -7.6 
|1996                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | -2.8  | -1.7  | -2.9 | -1.9 
|1997                                                                                                                              | 11.5  | 27.8  | 39.0  | 29.2  | 13.8  | 12.4  | 12.3  | 7.6   | 3.7   | 2.3   | 3.5  | 14.6 
|1998                                                                                                                              | 30.1  | 26.3  | 11.2  | -4.8  | -22.3 | -26.4 | -23.9 | -19.0 | -11.9 | -4.1  | -0.3 | -18.6
|1999                                                                                                                              | -14.8 | -18.6 | -5.5  | -11.0 | -11.0 | -9.4  | -6.5  | -3.7  | -3.4  | -3.6  | -1.6 | 13.1 
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|2000                                                                                                                              | 8.5   | 5.6   | -4.4  | 4.3   | 4.1   | 0.1   | 2.3   | 3.3   | 2.5   | 3.4   | 1.7  | -19.2
|2001                                                                                                                              | -40.6 | -50.4 | -50.8 | -47.6 | -33.3 | -14.0 | -11.8 | -10.8 | -11.1 | -11.2 | -9.0 | 22.0 
|2002                                                                                                                              | 74.6  | 106.2 | 96.4  | 80.5  | 42.1  | -1.9  | -5.3  | -2.6  | 1.4   | 2.4   | 0.0  | -0.1 
|2003                                                                                                                              | -19.4 | -34.9 | -31.0 | -29.9 | -29.9 | 0.7   | 4.8   | 2.1   | -1.5  | -2.4  | 0.1  | 0.2  
|2004                                                                                                                              | 3.4   | 47.4  | 23.3  | 7.1   | 7.1   | -1.3  | -1.7  | -1.9  | 0.0   | 0.4   | 0.1  | -13.6
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|2005                                                                                                                              | -6.7  | -24.6 | -15.6 | 5.9   | 1.1   | 0.7   | -0.3  | -0.7  | -2.0  | -3.2  | -2.3 | 11.6 
|2006                                                                                                                              | 40.8  | 16.9  | 26.7  | 19.5  | 25.1  | 13.8  | 10.6  | 8.8   | 5.3   | 4.9   | 1.6  | 3.0  
|2007                                                                                                                              | -14.7 | 0.8   | -3.7  | -12.8 | -11.8 | -0.4  | -0.4  | -1.7  | -1.4  | -1.1  | -0.2 | -0.7 
|2008                                                                                                                              | -15.5 | -21.8 | -14.4 | -11.9 | -12.8 | -14.9 | -13.3 | -6.7  | -7.8  | -3.8  | 0.7  | -7.9 
|2009                                                                                                                              | 4.6   | 18.0  | -1.0  | 9.8   | 9.8   | 0.9   | 1.9   | 2.0   | 5.5   | 4.7   | -0.5 | -6.0 
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|2010                                                                                                                              | 2.2   | 17.3  | 47.0  | 37.4  | 36.7  | 13.1  | 0.7   | -0.3  | 3.1   | 2.6   | -0.8 | 7.3  
|2011                                                                                                                              | 11.0  | -13.4 | -28.9 | -38.4 | -38.6 | -29.8 | -21.0 | -16.7 | -14.1 | -10.0 | 0.0  | 7.3  
|2012                                                                                                                              | 3.2   | 21.4  | 29.7  | 66.9  | 67.5  | 44.9  | 13.3  | 3.4   | 2.5   | 3.3   | 0.7  | -5.0 
|2013                                                                                                                              | -12.7 | -15.0 | -19.1 | -39.9 | -37.1 | -16.8 | 3.8   | 10.0  | 0.7   | 3.3   | -0.2 | -16.3
|2014                                                                                                                              | -21.6 | -25.0 | -24.9 | -13.4 | 8.9   | 6.7   | 3.9   | 0.9   | 4.5   | 0.5   | 0.3  | 21.6 
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|2015                                                                                                                              | 40.0  | 55.2  | 58.2  | 84.7  | 40.3  | 12.5  | 4.3   | -0.9  | -1.0  | -2.4  | -0.4 | 3.8  
|2016                                                                                                                              | 5.8   | 15.7  | 5.7   | 5.7   | 13.3  | 25.1  | 23.8  | 22.4  | 18.3  | 8.0   | -0.2 | -1.8 
|2017                                                                                                                              | -2.4  | -21.8 | -16.6 | -19.2 | -19.1 | -15.6 | -12.7 | -10.3 | -7.1  | -0.8  | 0.3  | -11.9
|2018                                                                                                                              | -9.3  | -0.4  | 16.6  | 9.1   | 1.7   | -0.9  | -0.7  | 0.9   | 2.7   | 0.8   | -0.1 | 14.9 
|2019                                                                                                                              | 0.0   | 3.0   | -5.4  | -0.8  | -0.8  | -12.5 | -12.6 | -10.3 | -8.4  | -4.2  | -1.3 | -3.5 
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|2020                                                                                                                              | 13.9  | -3.0  | 6.8   | 11.7  | 11.7  | 10.9  | 11.5  | 6.9   | 1.0   | -1.1  | 2.0  | -2.5 
|2021                                                                                                                              | 0.6   | -0.3  | -23.5 | -37.5 | -37.7 | -28.2 | -22.5 | -16.5 | -10.4 | -6.0  | -3.8 | 2.8  
|2022                                                                                                                              | -22.6 | -15.7 | 2.5   | 13.2  | 13.3  | 3.2   | 1.1   | 0.7   | 0.5   | 2.7   | 9.5  | 3.3  
|2023                                                                                                                              | 31.5  | 43.3  | 14.8  | 2.9   | 2.9   | -1.4  | -2.3  | -1.1  | 1.9   | 1.7   | -5.9 | 0.2  
|2024                                                                                                                              | -8.6  | 4.4   | 7.9   | 26.1  | 26.3  |       |       |       |       |       |      |      
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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