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|View History: Monthly Download Data (XLS File)                                                                    
|View History: Monthly                                                                                              
|View History: Monthly                                                                                              
|View History:                                                                                                      
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|Iowa Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Million Cubic Feet)
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|Iowa 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    
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1991                                                                                                                              | -2,696  | -5,556  | -4,018  | -2,430  | -2,408  | 3,493   | 3,414   | 4,058   | 11,806  | 19,414  | 13,253  | 13,393 
|1992                                                                                                                              | -4,224  | -6,407  | -6,304  | -5,070  | -1,061  | -3,484  | 2,536   | 6,836   | 6,037   | 3,618   | 2,568   | -3,773 
|1993                                                                                                                              | -49,040 | -46,415 | -45,078 | -43,755 | -45,456 | -45,569 | -46,271 | -46,798 | -44,848 | -48,360 | -45,854 | -42,967
|1994                                                                                                                              | 3,868   | 4,407   | 3,612   | 1,225   | -15     | -1,608  | -2,255  | -1,606  | -2,529  | 977     | 3,064   | 2,918  
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|1995                                                                                                                              | 662     | -725    | -2,062  | -4,549  | -6,346  | -4,768  | -4,875  | -978    | -985    | -2,955  | -9,054  | -6,318 
|1996                                                                                                                              | -2,596  | -433    | -1,982  | -2,204  | -5,609  | -6,677  | -4,290  | -5,912  | -4,983  | -1,206  | 3,642   | 151    
|1997                                                                                                                              | 1,022   | 1,266   | 4,194   | 3,372   | 6,482   | 7,826   | 4,075   | 1,746   | 1,892   | -654    | 4,614   | 6,207  
|1998                                                                                                                              | 3,213   | 5,242   | 1,504   | 2,782   | 2,910   | 2,954   | 13,883  | 6,881   | 6,269   | 5,020   | 5,642   | 2,027  
|1999                                                                                                                              | 370     | -5,005  | -3,089  | -2,827  | -1,829  | -3,398  | -4,159  | -4,961  | -4,002  | -570    | -1,736  | -2,474 
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|2000                                                                                                                              | -3,047  | -2,618  | 952     | -682    | -881    | -1,862  | -1,713  | -1,359  | -1,632  | 1,319   | -8,330  | -11,582
|2001                                                                                                                              | -6,928  | -1,232  | -1,767  | -655    | 477     | 778     | 8       | 1,843   | 2,717   | 914     | 14,779  | 22,106 
|2002                                                                                                                              | 16,981  | 3,620   | -1,760  | -1,514  | -6,345  | -7,521  | -5,474  | -6,502  | -7,648  | -6,402  | -6,323  | -8,306 
|2003                                                                                                                              | -8,483  | -2,892  | 1,534   | 1,977   | 4,970   | 5,092   | 3,615   | 4,021   | 6,308   | 6,598   | 1,215   | 3,956  
|2004                                                                                                                              | 4,699   | 2,871   | -1,856  | -2,205  | -1,719  | -1,411  | 476     | 1,577   | 712     | -97     | 5,057   | 3,228  
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|2005                                                                                                                              | 2,882   | 4,438   | 3,219   | 1,839   | -501    | -173    | -282    | -704    | 533     | 940     | -3,038  | -3,438 
|2006                                                                                                                              | -1,293  | -1,304  | 762     | 1,347   | 3,069   | 3,266   | 2,153   | 3,626   | 3,245   | 1,394   | 2,452   | 3,510  
|2007                                                                                                                              | 112     | -773    | -844    | 1,016   | 1,531   | 297     | -859    | -2,375  | -286    | 3,679   | 516     | -2,451 
|2008                                                                                                                              | 200     | 1,154   | 3,408   | 1,089   | -2,539  | -3,096  | -515    | 3,663   | 2,698   | 2,241   | 4,888   | 3,474  
|2009                                                                                                                              | 993     | 3,232   | 178     | 1,266   | 5,031   | 9,364   | 5,707   | 4,813   | 5,692   | 6,008   | 8,285   | 4,861  
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|2010                                                                                                                              | 5,220   | 2,433   | 2,061   | 1,364   | -2,017  | -4,942  | -5,547  | -7,401  | -5,455  | -772    | -5,516  | -2,588 
|2011                                                                                                                              | -2,594  | -294    | 190     | -92     | 433     | -1,254  | -1,883  | -2,354  | 162     | 1,228   | 2,642   | 4,544  
|2012                                                                                                                              | 6,721   | 5,204   | 6,542   | 5,493   | 4,775   | 2,418   | 557     | 325     | -723    | -4,918  | -10,758 | -11,317
|2013                                                                                                                              | -11,149 | -7,404  | -7,650  | -6,614  | -1,173  | 3,389   | 6,425   | 6,747   | 3,169   | -1,354  | -1,884  | -3,074 
|2014                                                                                                                              | -2,239  | -2,982  | -2,651  | -2,322  | -955    | 955     | 607     | 2,865   | 2,773   | 2,512   | 410     | 7,424  
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|2015                                                                                                                              | 11,829  | 11,132  | 10,661  | 11,217  | 9,124   | 8,105   | 1,930   | -1,282  | -1,735  | 824     | 6,178   | 4,955  
|2016                                                                                                                              | 78      | 534     | 2,156   | 548     | -2,458  | -6,563  | -7,201  | -6,737  | -4,832  | -241    | -753    | -6,414 
|2017                                                                                                                              | -2,558  | 64      | -339    | 522     | -248    | -1,187  | -1,417  | -3,690  | -2,284  | -917    | -2,007  | -329   
|2018                                                                                                                              | -4,690  | -6,183  | -7,100  | -7,198  | -5,949  | -6,273  | -6,296  | -2,563  | -2,505  | -2,608  | -5,228  | -2,859 
|2019                                                                                                                              | -1,038  | 57      | 3,474   | 5,193   | 6,792   | 9,131   | 10,281  | 9,059   | 7,559   | 2,707   | 627     | 1,067  
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|2020                                                                                                                              | 5,112   | 5,106   | 2,470   | 1,904   | 2,835   | 4,548   | 3,650   | 1,253   | -1,817  | -3,523  | 11,573  | 9,470  
|2021                                                                                                                              | 3,774   | 223     | -566    | -1,467  | -4,010  | -5,178  | -5,016  | -5,039  | -3,492  | -459    | 1,187   | 3,886  
|2022                                                                                                                              | 2,728   | 2,401   | 1,934   | 1,157   | -880    | -2,248  | -1,283  | -1,994  | -1,242  | -55     | -698    | -3,696 
|2023                                                                                                                              | -2,084  | -558    | -793    | 180     | 1,763   | 2,665   | 456     | 898     | 654     | -1,359  | -221    | 1,961  
|2024                                                                                                                              | 1,480   | 81      | 102     | -92     | -404    |         |         |         |         |         |         |        
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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