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|View History: Monthly Download Data (XLS File)                                                              
|View History: Monthly                                                                                        
|View History: Monthly                                                                                        
|View History:                                                                                                
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|Tennessee Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Tennessee 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  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | -----
|1997                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
|1998                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
|1999                                                                                                                              | 43.0  | 55.3  | 41.7  | 61.2  | 59.6  | 131.5 | 70.6  | 38.1  | 29.2  | 25.1  | 16.0  | 8.6  
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|2000                                                                                                                              | 5.3   | -3.2  | 12.8  | 21.0  | 16.7  | -19.5 | -34.7 | -42.4 | -50.4 | -50.8 | -41.4 | -27.6
|2001                                                                                                                              | -9.8  | 9.3   | 8.4   | 8.3   | 41.3  | 71.7  | 80.1  | 97.0  | 109.6 | 99.9  | 12.1  | -3.5 
|2002                                                                                                                              | 3.9   | 15.1  | 32.5  | 54.2  | 19.0  | -2.5  | -9.0  | -17.3 | -22.6 | -28.6 | -14.4 | -14.2
|2003                                                                                                                              | -37.6 | -54.6 | -65.2 | -72.4 | -65.7 | -53.4 | -40.1 | -24.0 | -23.2 | -15.3 | -0.8  | -12.8
|2004                                                                                                                              | -15.0 | -0.5  | 24.1  | 74.4  | 61.1  | 82.6  | 24.4  | 10.6  | 11.2  | 6.1   | 3.7   | 8.9  
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|2005                                                                                                                              | 29.2  | 24.3  | -5.7  | -41.2 | -58.5 | -67.8 | -72.3 | -75.3 | -82.9 | -85.4 | -86.1 | -87.6
|2006                                                                                                                              | -88.2 | -85.6 | -83.2 | -75.8 | -68.9 | -64.6 | -64.6 | -64.6 | -49.4 | -43.4 | -39.4 | -26.2
|2007                                                                                                                              | -15.0 | -15.0 | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
|2008                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
|2009                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
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|2010                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
|2011                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   |      
|2015                                                                                                                              | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0   | 0.0  
|2016                                                                                                                              | 70.6  | 100.4 | 102.6 | 90.0  | 79.0  | 71.9  | 58.8  | 47.1  | 36.5  | 27.3  | 16.4  | 4.7  
|2017                                                                                                                              | 4.3   | 2.5   | 0.1   | 1.1   | 1.7   | -1.2  | 1.5   | 1.0   | 4.6   | 4.3   | 3.1   | 3.7  
|2018                                                                                                                              | -2.4  | -3.4  | -1.2  | 0.0   | 5.2   | 11.2  | 14.8  | 20.4  | 16.4  | 11.9  | 7.9   | 2.7  
|2019                                                                                                                              | 5.0   | 6.7   | 1.9   | 1.3   | 0.0   | -2.2  | -4.4  | -1.8  | -1.7  | -0.1  | 3.3   | 13.4 
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|2020                                                                                                                              | 2.4   | -3.0  | -3.3  | -6.3  | -8.8  | -9.6  | -10.2 | -11.3 | -11.3 | -8.0  | -7.5  | -8.3 
|2021                                                                                                                              | 6.4   | 4.5   | 7.6   | 7.8   | 8.7   | 10.2  | 7.1   | 1.5   | 1.5   | -2.2  | -3.1  | -4.0 
|2022                                                                                                                              | -11.0 | -8.9  | -13.0 | -15.2 | -18.8 | -18.1 | -13.8 | -10.2 | -6.8  | -3.1  | -6.0  | -15.3
|2023                                                                                                                              | -7.0  | -6.1  | -6.5  | -2.3  | 5.9   | 9.5   | 12.3  | 22.4  | 11.9  | 7.7   | 11.8  | 29.5 
|2024                                                                                                                              | 26.4  | 31.2  | 37.2  | 39.0  | 34.7  |       |       |       |       |       |       |      
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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