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| Refining District Indiana-Illinois-Kentucky Refinery and Blender Net Production of Isobutane (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 | W | W | W | W | W | W | W | |||
| 2000's | W | W | W | W | 201 | 509 | 953 | 685 | 48 | 513 |
| 2010's | 589 | -126 | 601 | -62 | 357 | 258 | -37 | -285 | -692 | -202 |
| 2020's | -1,276 | -715 | -2,129 | -2,125 | -2,352 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 10/31/2025 |
| Next Release Date: 8/31/2026 |