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| U.S. Isobutane-Isobutylene Stocks at Refineries (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 | 2,903 | 2,830 | 2,513 | 2,467 | 2,899 | 2,903 | 2,238 | |||
| 2000's | 1,959 | 2,012 | 2,022 | 2,118 | 2,270 | 2,037 | 2,279 | 2,690 | 2,496 | 2,438 |
| 2010's | 2,580 | 2,325 | 2,372 | 2,240 | 2,188 | 2,495 | 2,635 | 2,480 | 2,405 | 2,663 |
| 2020's | 1,788 | 1,890 | -- | -- | -- |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 12/31/2025 |
| Next Release Date: 8/31/2026 |