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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  (Million Cubic Feet)
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|Maryland 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   
|--------------------------------------------------------------------------------------------------------------------------------- | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------
|1990                                                                                                                              | -862   | -85    | 724    | 658    | 416    | -1,091 | -1,477 | -807   | 2,724  | -222   | -1,505 | 5,333 
|1991                                                                                                                              | 4,470  | 4,339  | 1,613  | 1,801  | 727    | 1,324  | 628    | 202    | -123   | -686   | 1,727  | 2,620 
|1992                                                                                                                              | 900    | -745   | -1,784 | -3,603 | -1,779 | -745   | -328   | -176   | -219   | 356    | 579    | -1,431
|1993                                                                                                                              | 153    | 742    | 1,488  | 1,891  | 777    | -736   | -1,464 | -2,133 | -1,700 | -270   | -379   | -1,170
|1994                                                                                                                              | -4,444 | -2,565 | -113   | 1,629  | 1,482  | 1,771  | 2,779  | 2,519  | 1,569  | 658    | -517   | 1,249 
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|1995                                                                                                                              | 5,583  | 3,808  | 3,166  | 1,674  | 1,629  | 2,195  | -93    | -369   | 129    | -488   | -247   | -2,056
|1996                                                                                                                              | -3,630 | -2,064 | -3,459 | -3,286 | -3,097 | -2,473 | -372   | 315    | -34    | 394    | -346   | 1,808 
|1997                                                                                                                              | -278   | -264   | -667   | -728   | -1,328 | -2,326 | -2,741 | -2,319 | -1,251 | -548   | 673    | 148   
|1998                                                                                                                              | 2,785  | 2,702  | 2,975  | 4,234  | 3,452  | 3,047  | 4,474  | 3,589  | 1,606  | 589    | 519    | -237  
|1999                                                                                                                              | -399   | 364    | 786    | 326    | 2,069  | 725    | -3,522 | -2,976 | -2,348 | -238   | -573   | 78    
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|2000                                                                                                                              | -2,004 | -3,406 | -2,132 | -2,166 | -2,256 | 836    | 4,161  | 4,442  | 3,075  | -17    | -904   | -4,732
|2001                                                                                                                              | -1,486 | -484   | -1,764 | -995   | -803   | -705   | -134   | -2,887 | -1,765 | -740   | 640    | 4,952 
|2002                                                                                                                              | 4,465  | 5,495  | 4,588  | 2,760  | 887    | 293    | 339    | 2,962  | 1,752  | 299    | 185    | 701   
|2003                                                                                                                              | -1,315 | -3,966 | -1,720 | -544   | 1,211  | 1,523  | 268    | -1,727 | -1,523 | 435    | 94     | 224   
|2004                                                                                                                              | -574   | 768    | 122    | -291   | -1,291 | -1,066 | -73    | 641    | 1,381  | -96    | 284    | -690  
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|2005                                                                                                                              | 2,080  | 2,937  | 2,302  | 3,093  | 3,900  | -475   | -2,754 | -2,907 | -1,154 | -138   | 1,033  | 2,036 
|2006                                                                                                                              | 4,218  | 3,643  | 3,653  | 2,181  | 1,637  | 3,768  | 3,821  | 2,930  | 2,009  | 170    | 698    | 939   
|2007                                                                                                                              | -3,192 | -4,976 | -3,425 | -2,480 | -2,785 | -764   | 1,526  | 1,778  | -119   | 716    | -657   | -1,410
|2008                                                                                                                              | -420   | 773    | -1,906 | -1,422 | -1,008 | -2,670 | -2,400 | 231    | 219    | -424   | -1,518 | -927  
|2009                                                                                                                              | 763    | 839    | -19    | -746   | -1,087 | 155    | 1,037  | 864    | 2,338  | 2,718  | 3,711  | 2,758 
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|2010                                                                                                                              | 1,277  | -759   | 2,874  | 4,937  | 6,055  | 4,149  | 604    | -1,714 | -2,273 | -600   | 16     | -2,292
|2011                                                                                                                              | -1,767 | 557    | -812   | -3,255 | -4,058 | -3,644 | -2,252 | -1,606 | -952   | -733   | -221   | 1,720 
|2012                                                                                                                              | 2,485  | 4,193  | 5,368  | 6,690  | 5,771  | 5,829  | 4,385  | 3,791  | 2,521  | 860    | -2,328 | -2,383
|2013                                                                                                                              | -1,945 | -2,647 | -5,232 | -6,819 | -6,291 | -4,324 | -2,841 | -810   | 259    | 132    | 1,989  | 811   
|2014                                                                                                                              | -2,642 | -4,729 | -4,293 | -3,028 | -904   | -657   | 192    | -2,076 | -1,675 | 54     | -2,692 | -556  
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|2015                                                                                                                              | 1,627  | 437    | 1,310  | 585    | -480   | -1,082 | -950   | 1,850  | 632    | -1,025 | 1,249  | 1,328 
|2016                                                                                                                              | 393    | 2,976  | 4,288  | 3,318  | 2,443  | 2,887  | 1,581  | 192    | -30    | -426   | -829   | -2,916
|2017                                                                                                                              | -2,839 | -2,594 | -6,106 | -5,111 | -3,654 | -4,435 | -2,696 | -1,467 | -223   | 444    | 521    | 1,045 
|2018                                                                                                                              | 469    | -443   | 744    | -190   | -1,656 | -651   | -620   | -648   | -1,391 | -825   | -297   | 2,128 
|2019                                                                                                                              | 3,483  | 3,610  | 2,113  | 3,811  | 3,796  | 945    | -460   | -2,812 | -3,035 | -1,234 | 200    | -1,515
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|2020                                                                                                                              | 12     | 2,010  | 4,700  | 574    | -204   | 1,246  | 526    | 2,040  | 3,211  | 935    | 758    | -157  
|2021                                                                                                                              | 813    | -1,414 | -3,534 | -1,413 | -1,784 | -1,854 | -844   | -1,669 | -1,899 | -649   | -1,798 | 1,803 
|2022                                                                                                                              | -1,956 | -1,695 | -886   | -791   | -57    | -530   | -260   | 1,519  | 2,723  | 1,746  | 1,624  | -1,023
|2023                                                                                                                              | 2,603  | 5,228  | 7,587  | 9,288  | 7,628  | 7,019  | 4,038  | 3,284  | 1,326  | 1,023  | 738    | 1,470 
|2024                                                                                                                              | -1,826 | -2,858 | -2,758 | -3,659 | -2,319 |        |        |        |        |        |        |       
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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