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|View History: Monthly Download Data (XLS File)                                                             
|View History: Monthly                                                                                       
|View History: Monthly                                                                                       
|View History:                                                                                               
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|Maryland Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Percent)
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|Maryland 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                                                                                                                              | 103.9 | 379.8 | 71.8  | 60.5  | 13.1  | 20.1  | 7.2   | 1.8   | -0.9  | -4.6 | 13.4  | 22.0 
|1992                                                                                                                              | 10.3  | -13.6 | -46.2 | -75.4 | -28.4 | -9.4  | -3.5  | -1.5  | -1.6  | 2.5  | 4.0   | -9.9 
|1993                                                                                                                              | 1.6   | 15.7  | 71.7  | 160.6 | 17.3  | -10.3 | -16.3 | -18.7 | -12.6 | -1.8 | -2.5  | -8.9 
|1994                                                                                                                              | -45.2 | -46.8 | -3.2  | 53.1  | 28.2  | 27.5  | 36.9  | 27.2  | 13.4  | 4.6  | -3.5  | 10.5 
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|1995                                                                                                                              | 103.8 | 130.7 | 91.8  | 35.6  | 24.2  | 26.7  | -0.9  | -3.1  | 1.0   | -3.2 | -1.7  | -15.6
|1996                                                                                                                              | -33.1 | -30.7 | -52.3 | -51.6 | -37.0 | -23.8 | 0.0   | 0.0   | -0.3  | 2.7  | -2.5  | 16.3 
|1997                                                                                                                              | -3.8  | -5.7  | -21.1 | -23.6 | -25.2 | -29.3 | -27.9 | -19.8 | -9.3  | -3.7 | 4.9   | 1.1  
|1998                                                                                                                              | 39.5  | 61.5  | 119.5 | 179.6 | 87.5  | 54.4  | 63.0  | 38.2  | 13.2  | 4.1  | 3.6   | -1.8 
|1999                                                                                                                              | -4.1  | 5.1   | 14.4  | 5.0   | 28.0  | 8.4   | -30.4 | -22.9 | -17.1 | -1.6 | -3.8  | 0.6  
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|2000                                                                                                                              | -21.2 | -45.7 | -34.1 | -31.3 | -23.8 | 8.9   | 51.7  | 44.4  | 26.9  | -0.1 | -6.3  | -36.6
|2001                                                                                                                              | -20.0 | -11.9 | -42.8 | -20.9 | -11.1 | -6.9  | -1.1  | -20.0 | -12.2 | -5.0 | 4.8   | 60.5 
|2002                                                                                                                              | 75.0  | 153.9 | 194.9 | 73.5  | 13.8  | 3.1   | 2.8   | 25.6  | 13.8  | 2.1  | 1.3   | 5.3  
|2003                                                                                                                              | -12.6 | -43.7 | -24.8 | -8.3  | 16.6  | 15.5  | 2.2   | -11.9 | -10.5 | 3.0  | 0.7   | 1.6  
|2004                                                                                                                              | -6.3  | 15.1  | 2.3   | -4.9  | -15.2 | -9.4  | -0.6  | 5.0   | 10.7  | -0.7 | 2.0   | -4.9 
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|2005                                                                                                                              | 24.4  | 50.1  | 43.1  | 54.4  | 54.0  | -4.6  | -21.8 | -21.6 | -8.0  | -0.9 | 7.1   | 15.2 
|2006                                                                                                                              | 39.8  | 41.4  | 47.8  | 24.9  | 14.7  | 38.5  | 38.8  | 27.8  | 15.2  | 1.2  | 4.5   | 6.1  
|2007                                                                                                                              | -21.5 | -40.0 | -30.3 | -22.6 | -21.8 | -5.6  | 11.2  | 13.2  | -0.8  | 4.9  | -4.0  | -8.6 
|2008                                                                                                                              | -3.6  | 10.3  | -24.2 | -16.8 | -10.1 | -20.9 | -15.8 | 1.5   | 1.5   | -2.8 | -9.7  | -6.2 
|2009                                                                                                                              | 6.8   | 10.2  | -0.3  | -10.6 | -12.1 | 1.5   | 8.1   | 5.6   | 15.3  | 18.1 | 26.2  | 19.7 
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|2010                                                                                                                              | 10.7  | -8.4  | 48.3  | 78.3  | 76.9  | 40.4  | 4.4   | -10.5 | -12.9 | -3.4 | 0.1   | -13.7
|2011                                                                                                                              | -13.3 | 6.7   | -9.2  | -28.9 | -29.1 | -25.3 | -15.6 | -11.0 | -6.2  | -4.3 | -1.2  | 11.9 
|2012                                                                                                                              | 21.6  | 47.2  | 67.0  | 83.7  | 58.5  | 54.1  | 36.0  | 29.1  | 17.5  | 5.3  | -13.2 | -14.7
|2013                                                                                                                              | -13.9 | -20.2 | -39.1 | -46.4 | -40.2 | -26.0 | -17.1 | -4.8  | 1.5   | 0.8  | 12.9  | 5.9  
|2014                                                                                                                              | -22.0 | -45.4 | -52.7 | -38.5 | -9.7  | -5.3  | 1.4   | -13.0 | -9.7  | 0.3  | -15.5 | -3.8 
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|2015                                                                                                                              | 17.3  | 7.7   | 34.0  | 12.1  | -5.7  | -9.3  | -6.8  | 13.3  | 4.1   | -5.9 | 8.5   | 9.4  
|2016                                                                                                                              | 3.6   | 48.5  | 83.0  | 61.2  | 30.7  | 27.4  | 12.2  | 1.2   | -0.2  | -2.6 | -5.2  | -18.9
|2017                                                                                                                              | -24.9 | -28.5 | -64.6 | -58.5 | -35.1 | -33.0 | -18.5 | -9.2  | -1.4  | 2.8  | 3.5   | 8.4  
|2018                                                                                                                              | 5.5   | -6.8  | 22.2  | -5.2  | -24.5 | -7.2  | -5.2  | -4.5  | -8.8  | -5.0 | -1.9  | 15.7 
|2019                                                                                                                              | 38.6  | 59.4  | 51.7  | 110.9 | 74.5  | 11.3  | -4.1  | -20.3 | -20.9 | -7.9 | 1.3   | -9.7 
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|2020                                                                                                                              | 0.1   | 20.8  | 75.8  | 7.9   | -2.3  | 13.4  | 4.9   | 18.5  | 28.0  | 6.5  | 4.9   | -1.1 
|2021                                                                                                                              | 6.5   | -12.1 | -32.4 | -18.1 | -20.5 | -17.6 | -7.5  | -12.8 | -12.9 | -4.2 | -11.1 | 12.9 
|2022                                                                                                                              | -14.7 | -16.5 | -12.0 | -12.3 | -0.8  | -6.1  | -2.5  | 13.3  | 21.3  | 11.9 | 11.2  | -6.5 
|2023                                                                                                                              | 22.9  | 60.9  | 117.0 | 165.3 | 111.4 | 86.1  | 39.6  | 25.4  | 8.6   | 6.2  | 4.6   | 10.0 
|2024                                                                                                                              | -13.1 | -20.7 | -19.6 | -24.5 | -16.0 |       |       |       |       |      |       |      
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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