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|View History: Annual Download Data (XLS File)      
|View History: Annual                                
|View History: Annual                                
|View History:                                       
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|Illinois  Natural Gas Processed (Million Cubic Feet)
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|Illinois  Natural Gas Processed (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                                                                                                                            |         |         |         |         |         |         |         | 483,902 | 483,336 | 478,291
|1970's                                                                                                                            | 429,691 | 341,750 | 376,310 | 358,142 | 342,046 | 322,393 | 305,441 | 275,060 | 327,451 |        
|1980's                                                                                                                            |         | 150,214 | 152,645 | 166,568 | 156,791 | 153,419 | 146,463 | 106,547 | 757     | 509    
|1990's                                                                                                                            | 607     | 951     | 942     | 809     | 685     | 727     | 578     | 500     | 468     | 358    
|2000's                                                                                                                            | 271     | 233     | 299     | 306     | 328     | 280     | 242     | 235     | 233     | 164    
|2010's                                                                                                                            | 5,393   |         |         |         | 294     | 320     | 299     | 300     | 281     | 255    
|2020's                                                                                                                            | 227     | 166     | 214     |         |         |         |         |         |         |        
|- = 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