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| Refining District Indiana-Illinois-Kentucky Field Production of Normal Butane (Thousand Barrels) | ||||||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1990's | 996 | 901 | 859 | 826 | 866 | 772 | 770 | |||
| 2000's | 750 | 1,904 | 1,997 | 2,038 | 2,149 | 2,107 | 1,932 | 1,438 | 1,021 | 1,396 |
| 2010's | 1,284 | 1,123 | 2,043 | 1,890 | 4,929 | 6,803 | 7,149 | 6,198 | 5,899 | 6,391 |
| 2020's | 5,552 | 4,677 | 4,700 | 7,092 | 6,636 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 2/6/2026 |
| Next Release Date: 8/31/2026 |