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| Illinois Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) | |||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1980's | 1,030 | 1,530 | 1,324 | 1,887 | 1,371 | 1,338 | 1,477 | |||
| 1990's | 677 | 466 | 346 | 250 | 333 | 0 | 0 | 0 | 0 | 0 |
| 2000's | 0 | 0 | NA | 0 | NA | NA | NA | NA | NA | NA |
| 2010's | NA | 0 | 0 | 0 | ||||||
| 2020's | 0 | 0 | 0 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 9/30/2025 |
| Next Release Date: 10/31/2025 |