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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  (Million Cubic Feet)
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|                                                                                                                        
|Tennessee Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Million Cubic Feet)
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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    
|1998                                                                                                                              | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0     | 0     | 184  
|1999                                                                                                                              | 197  | 189  | 118  | 122  | 119  | 262  | 235  | 178  | 169  | 171   | 125   | 68   
|                                                                                                                                 
|2000                                                                                                                              | 34   | -17  | 51   | 68   | 53   | -90  | -197 | -274 | -377 | -433  | -377  | -236 
|2001                                                                                                                              | -68  | 48   | 38   | 32   | 153  | 266  | 298  | 360  | 407  | 420   | 65    | -22  
|2002                                                                                                                              | 24   | 85   | 159  | 228  | 100  | -16  | -60  | -126 | -176 | -240  | -86   | -85  
|2003                                                                                                                              | -243 | -354 | -424 | -471 | -411 | -332 | -244 | -145 | -140 | -92   | -4    | -66  
|2004                                                                                                                              | -60  | -1   | 55   | 133  | 131  | 177  | 89   | 49   | 52   | 31    | 19    | 40   
|                                                                                                                                 
|2005                                                                                                                              | 100  | 71   | -16  | -129 | -202 | -265 | -328 | -383 | -426 | -460  | -454  | -426 
|2006                                                                                                                              | -392 | -312 | -220 | -139 | -98  | -81  | -81  | -81  | -44  | -34   | -29   | -16  
|2007                                                                                                                              | -8   | -8   | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0     | 0     | 0    
|2008                                                                                                                              | 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    
|                                                                                                                                 
|2010                                                                                                                              | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0     | 0     | 0    
|2011                                                                                                                              | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0    | 0     | 0     |      
|2015                                                                                                                              | 666  | 570  | 580  | 627  | 680  | 729  | 789  | 848  | 913  | 1,005 | 1,107 | 1,162
|2016                                                                                                                              | 470  | 573  | 595  | 565  | 537  | 524  | 464  | 400  | 333  | 274   | 182   | 55   
|2017                                                                                                                              | 49   | 29   | 2    | 14   | 21   | -15  | 19   | 13   | 57   | 55    | 40    | 45   
|2018                                                                                                                              | -28  | -39  | -14  | 0    | 64   | 139  | 188  | 257  | 213  | 158   | 105   | 34   
|2019                                                                                                                              | 58   | 76   | 22   | 16   | 0    | -30  | -64  | -27  | -25  | -2    | 48    | 174  
|                                                                                                                                 
|2020                                                                                                                              | 30   | -36  | -39  | -77  | -114 | -129 | -143 | -169 | -169 | -119  | -112  | -123 
|2021                                                                                                                              | 80   | 53   | 87   | 90   | 103  | 124  | 89   | 20   | 20   | -30   | -42   | -53  
|2022                                                                                                                              | -145 | -109 | -160 | -188 | -243 | -243 | -186 | -137 | -91  | -42   | -79   | -197 
|2023                                                                                                                              | -83  | -68  | -70  | -24  | 62   | 104  | 143  | 270  | 149  | 101   | 148   | 323  
|2024                                                                                                                              | 289  | 328  | 373  | 399  | 385  |      |      |      |      |       |       |      
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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