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|View History: Monthly Download Data (XLS File)                                                             
|View History: Monthly                                                                                       
|View History: Monthly                                                                                       
|View History:                                                                                               
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|Virginia Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Virginia 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                                                                                                                              | 16.1  | 26.9  | 39.6  | 25.2  | 13.9  | 3.6   | 5.7   | -3.4  | 1.3   | 0.3   | -3.5  | -10.0
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|2000                                                                                                                              | -34.3 | -21.3 | 9.2   | 14.4  | 36.6  | 30.7  | 25.9  | 21.0  | -1.1  | 10.0  | 3.1   | -10.5
|2001                                                                                                                              | -0.7  | -2.3  | -34.6 | -9.4  | -10.1 | 1.1   | 2.2   | 9.1   | 20.4  | 2.2   | 20.9  | 63.8 
|2002                                                                                                                              | 104.8 | 64.7  | 81.8  | 13.2  | 10.2  | 1.6   | 3.2   | -3.9  | -1.7  | 7.0   | -5.6  | -17.5
|2003                                                                                                                              | -48.6 | -59.7 | -62.0 | -39.4 | -32.0 | -16.7 | -8.6  | 16.7  | 23.4  | 15.6  | 23.8  | 27.0 
|2004                                                                                                                              | 50.7  | 118.7 | 135.4 | 55.0  | 54.1  | 25.8  | 9.7   | 8.0   | 0.2   | 25.4  | 28.9  | 17.4 
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|2005                                                                                                                              | 12.8  | 32.7  | -6.9  | 2.2   | -6.8  | -9.4  | -2.8  | -26.7 | -20.9 | -22.1 | 26.9  | 52.3 
|2006                                                                                                                              | 173.9 | 161.4 | 420.9 | 302.3 | 172.6 | 123.1 | 94.5  | 93.9  | 111.4 | 75.4  | 10.3  | 16.7 
|2007                                                                                                                              | -6.0  | -40.3 | -26.7 | -20.9 | -2.2  | 12.2  | 19.6  | -8.5  | -9.5  | 2.8   | -11.4 | -19.3
|2008                                                                                                                              | -37.3 | 19.7  | -13.7 | -8.1  | -14.0 | -18.3 | -18.8 | 22.5  | 1.7   | -5.5  | -9.3  | 9.7  
|2009                                                                                                                              | 3.2   | -12.2 | 20.6  | 17.8  | 8.6   | 2.9   | 0.7   | -0.5  | -7.9  | -0.8  | 14.4  | -8.7 
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|2010                                                                                                                              | 0.5   | -5.8  | -10.0 | -0.4  | 1.0   | -3.2  | -14.6 | -4.5  | 9.1   | 3.4   | -1.1  | -28.6
|2011                                                                                                                              | -1.7  | 14.6  | 8.4   | -26.5 | -41.0 | -6.6  | -4.8  | -5.5  | -5.6  | -21.1 | 6.5   | 66.2 
|2012                                                                                                                              | 27.8  | 9.2   | 4.0   | 12.1  | 32.3  | -13.2 | -2.6  | -30.8 | -10.5 | 15.0  | -9.8  | -15.7
|2013                                                                                                                              | -15.3 | -32.5 | -20.2 | 10.3  | 18.1  | 24.4  | 25.3  | 26.7  | 9.9   | 0.7   | -7.8  | 7.2  
|2014                                                                                                                              | -28.0 | 21.7  | -7.6  | -12.8 | -4.4  | -6.1  | -6.1  | -2.4  | -5.1  | -0.9  | 6.3   | -0.1 
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|2015                                                                                                                              | 36.9  | -41.8 | 10.5  | -31.4 | -25.8 | -7.6  | -12.2 | 6.5   | 0.1   | -1.7  | 7.3   | 9.9  
|2016                                                                                                                              | 3.6   | 117.1 | 18.5  | 87.1  | 54.6  | 31.6  | 26.0  | 22.4  | 9.3   | 0.7   | -0.5  | -3.6 
|2017                                                                                                                              | 34.6  | 16.1  | 0.6   | -4.5  | 2.3   | 0.1   | -6.5  | -9.8  | 2.4   | -0.1  | -1.4  | -22.7
|2018                                                                                                                              | -14.8 | 4.0   | -18.2 | -8.3  | -5.2  | -2.3  | 4.5   | -8.5  | -18.9 | 2.2   | -9.5  | 25.1 
|2019                                                                                                                              | -6.1  | -9.0  | 26.5  | 19.0  | -2.9  | 7.8   | 3.0   | 9.0   | 19.9  | -5.4  | 5.1   | 0.8  
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|2020                                                                                                                              | 14.1  | -2.7  | -4.7  | -24.1 | -22.0 | -12.9 | -4.6  | 1.6   | -10.5 | -6.9  | -0.4  | -11.4
|2021                                                                                                                              | -8.3  | -34.0 | -20.3 | -15.5 | -10.2 | -19.9 | -0.1  | -13.7 | -4.8  | -7.4  | -18.2 | 1.5  
|2022                                                                                                                              | -16.3 | 32.4  | 15.0  | -21.2 | -28.1 | -8.4  | -29.5 | -22.0 | -1.2  | 9.6   | 2.9   | -15.0
|2023                                                                                                                              | 20.7  | 8.9   | -10.1 | 36.5  | 66.0  | 33.0  | -0.8  | 16.8  | 6.3   | 4.2   | 1.8   | 18.3 
|2024                                                                                                                              | -11.6 | 1.1   | 19.5  | 20.1  | 11.1  |       |       |       |       |       |       |      
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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