|                                                                                                                         
|-------------------------------------------------------------------------------------------------------------------------
|                                                                                                                         
|View History: Monthly Download Data (XLS File)                                                                          
|View History: Monthly                                                                                                    
|View History: Monthly                                                                                                    
|View History:                                                                                                            
|                                                                                                                         
|Washington Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Million Cubic Feet)
|                                                                                                                         
|                                                                                                                         
|Washington Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Million Cubic Feet)
|                                                                                                                         

|Year                                                                                                                              | Jan    | Feb    | Mar    | Apr    | May    | Jun    | Jul    | Aug    | Sep    | Oct    | Nov    | Dec   
|--------------------------------------------------------------------------------------------------------------------------------- | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------
|1990                                                                                                                              | -72    | 452    | 283    | -1,858 |        | -801   | 699    | -1,353 | 41     | 108    | 1,167  | -1,339
|1991                                                                                                                              | -2,326 | 1,196  | 205    | 3,977  | 26,799 | 5,575  | 4,775  | 1,778  | 703    | 1,958  | 2,917  | 5,687 
|1992                                                                                                                              | 6,208  | 3,332  | 5,695  | 1,986  | 1,815  | 275    | -839   | 679    | 1,880  | -138   | -1,840 | -5,179
|1993                                                                                                                              | -6,689 | -7,057 | -5,245 | -3,367 | -188   | -497   | 627    | -212   | 975    | -626   | -3,745 | 1,760 
|1994                                                                                                                              | 3,597  | 2,471  | 806    | 1,906  | -20    | 879    | 539    | 371    | -878   | 1,499  | 4,890  | 1,609 
|                                                                                                                                 
|1995                                                                                                                              | 1,078  | 3,321  | 3,503  | 1,633  | 1,599  | 1,386  | 990    | 268    | 1,628  | 1,312  | 1,767  | -15   
|1996                                                                                                                              | -4,203 | -3,033 | -3,595 | -3,720 | -4,328 | -2,562 | -2,690 | 1,336  | -2,014 | -3,767 | -4,591 | -3,144
|1997                                                                                                                              | 1,694  | 956    | -1,465 | -1,508 | 2,410  | 2,858  | 2,185  | -2,562 | 562    | 1,707  | 2,374  | 1,107 
|1998                                                                                                                              | 2,518  | 168    | 76     | -1,559 | -3,507 | -4,323 | -4,622 | 9      | -436   | -434   | 416    | 367   
|1999                                                                                                                              | -164   | 1,737  | 3,657  | 3,274  | -102   | -1,594 | 1,620  | 4,518  | 2,696  | 3,821  | 2,767  | 4,310 
|                                                                                                                                 
|2000                                                                                                                              | -2,294 | -2,095 | -2,210 | 634    | 2,646  | 4,849  | 5,061  | -2,266 | 567    | -1,225 | -4,740 | -1,094
|2001                                                                                                                              | 3,503  | -593   | 342    | 1,716  | 7,412  | 3,940  | -170   | 1,948  | 549    | 966    | 4,615  | 2,669 
|2002                                                                                                                              | -1,774 | 160    | -128   | 1,414  | -2,820 | -110   | 869    | 709    | 360    | -467   | 931    | -283  
|2003                                                                                                                              | 3,491  | 145    | 1,580  | -1,842 | -990   | -1,549 | -1,389 | 335    | 1,139  | 1,605  | 144    | 783   
|2004                                                                                                                              | 1,199  | 3,601  | 4,020  | 6,624  | 5,778  | 3,163  | 1,246  | 303    | 884    | 407    | 1,051  | 1,923 
|                                                                                                                                 
|2005                                                                                                                              | -126   | 2,319  | 3,054  | 1,932  | 1,764  | 2,242  | 2,497  | 1,048  | 174    | 1,414  | 565    | 60    
|2006                                                                                                                              | 2,361  | -282   | -1,765 | -3,722 | -3,653 | -821   | -252   | 1,436  | 1,178  | -540   | -1,861 | -1,579
|2007                                                                                                                              | -5,324 | -2,367 | -2,434 | -1,669 | -1,078 | -1,501 | 1,526  | -924   | 157    | 1,833  | 1,193  | 651   
|2008                                                                                                                              | -741   | -1,532 | -5,116 | -4,584 | -3,258 | -1,940 | 95     | 1,004  | 266    | 887    | 2,664  | -1,104
|2009                                                                                                                              | 3,050  | 2,166  | 3,075  | 7,190  | 6,940  | 6,183  | 2,057  | 1,480  | 745    | 427    | 981    | 99    
|                                                                                                                                 
|2010                                                                                                                              | 2,520  | 2,146  | 2,311  | -1,114 | -94    | 806    | 77     | -321   | 405    | 661    | -2,537 | 1,781 
|2011                                                                                                                              | -664   | -2,495 | -1,900 | -4,871 | -6,995 | -7,396 | -5,509 | -1,311 | -567   | -637   | 2,353  | 2,098 
|2012                                                                                                                              | -709   | 808    | 3,271  | 6,181  | 6,088  | 6,383  | 4,711  | 1,318  | 684    | 419    | 429    | -794  
|2013                                                                                                                              | -2,469 | -641   | -2,259 | -4,764 | -5,797 | -5,838 | -2,813 | -504   | -549   | -369   | -1,772 | -2,734
|2014                                                                                                                              | 1,145  | -1,183 | -2,974 | -218   | 1,439  | 957    | -635   | 654    | 441    | 863    | 969    | 3,514 
|                                                                                                                                 
|2015                                                                                                                              | 3,319  | 3,895  | 4,046  | 3,157  | 2,462  | -1,143 | -2,950 | -2,281 | -747   | -154   | -2,386 | -4,419
|2016                                                                                                                              | -1,484 | -2,626 | -2,041 | -322   | -267   | 1,729  | 2,795  | 139    | 347    | -369   | 2,971  | 2,216 
|2017                                                                                                                              | -3,213 | -1,380 | -1,001 | -1,324 | -92    | 813    | -304   | -170   | 208    | -1,103 | -484   | -1,072
|2018                                                                                                                              | 2,941  | 201    | -449   | -499   | -1,561 | 1,371  | -154   | 254    | -909   | 290    | -1,274 | 1,081 
|2019                                                                                                                              | -1,696 | -803   | 3,737  | 5,290  | 7,531  | 3,159  | 4,038  | 237    | 580    | -2,485 | -280   | 656   
|                                                                                                                                 
|2020                                                                                                                              | 3,660  | 1,803  | -1,581 | -1,221 | -1,056 | 356    | 639    | 2,105  | 555    | 1,603  | 469    | -713  
|2021                                                                                                                              | 671    | 1,606  | 224    | -3,140 | -195   | -708   | 964    | -867   | -885   | 1,256  | 1,910  | -1,301
|2022                                                                                                                              | -39    | -627   | 1,149  | -2,406 | -6,962 | -2,765 | -1,542 | -1,572 | 339    | -770   | -3,807 | -2,876
|2023                                                                                                                              | -5,118 | -1,834 | -4,427 | 710    | 5,302  | 2,848  | -1,685 | 2,285  | -115   | -1,796 | 1,221  | 6,675 
|2024                                                                                                                              | 4,497  | 4,924  | 9,997  | 8,292  | 2,940  |        |        |        |        |        |        |       
|                                                                                                                                 
|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
|                                                                                                                                 
|Release Date: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024