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|View History:  Monthly  Annual Download Data (XLS File)                      
|View History:  Monthly  Annual                                                
|View History:  Monthly  Annual                                                
|View History:                                                                 
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|Illinois Natural Gas Underground Storage Net Withdrawals  (Million Cubic Feet)
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|Illinois Natural Gas Underground Storage Net Withdrawals  (Million Cubic Feet)
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|Decade                                                                                                                            | Year-0  | Year-1  | Year-2  | Year-3  | Year-4  | Year-5  | Year-6  | Year-7  | Year-8  | Year-9 
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1960's                                                                                                                            |         |         |         |         |         |         |         | -31,495 | -46,034 | -48,160
|1970's                                                                                                                            | -78,193 | -87,592 | -39,910 | -74,522 | -47,744 | -69,306 | -25,844 | -78,904 | -6,479  | -44,008
|1980's                                                                                                                            | -16,621 | 27,678  | -24,056 | 43,126  | -21,022 | 17,962  | -16,244 | -177    | -8,759  | 17,378 
|1990's                                                                                                                            | -15,926 | 978     | 8,608   | -12,196 | -12,907 | 22,981  | -15,109 | -10,153 | -9,780  | -2,715 
|2000's                                                                                                                            | 24,165  | -25,587 | 19,029  | -8,899  | 4,602   | -1,226  | -7,163  | 7,333   | -506    | -11,464
|2010's                                                                                                                            | -2,323  | -1,186  | 1,001   | 17,324  | -10,730 | -10,603 | 5,282   | 8,410   | -3,407  | -17,252
|2020's                                                                                                                            | -3,947  | 2,361   | 10,416  | -13,992 |         |         |         |         |         |        
|- = 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