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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 Withdrawals  (Million Cubic Feet)
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|Illinois Natural  Gas Underground Storage 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                                                                                                                            |         |         |         |         |         |         |         | 87,630  | 97,146  | 105,337
|1970's                                                                                                                            | 112,468 | 127,279 | 197,188 | 158,590 | 184,540 | 225,383 | 207,921 | 213,842 | 230,526 | 209,924
|1980's                                                                                                                            | 180,764 | 169,502 | 193,480 | 165,746 | 173,305 | 183,650 | 140,510 | 124,889 | 157,954 | 216,543
|1990's                                                                                                                            | 197,150 | 213,210 | 223,012 | 228,319 | 222,871 | 286,390 | 226,020 | 217,632 | 215,309 | 235,609
|2000's                                                                                                                            | 249,688 | 205,509 | 265,603 | 240,329 | 251,349 | 259,288 | 235,590 | 251,122 | 259,827 | 247,957
|2010's                                                                                                                            | 245,135 | 257,504 | 250,955 | 282,499 | 260,100 | 237,236 | 246,869 | 243,975 | 244,708 | 239,138
|2020's                                                                                                                            | 236,053 | 232,691 | 248,455 | 222,509 |         |         |         |         |         |        
|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 5/31/2024                                                                                                          
|Next Release Date: 6/28/2024