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| East Coast (PADD 1) Ending Stocks of Isobutane-Isobutylene (Thousand Barrels) | ||||||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1980's | 12 | 25 | 96 | 22 | 17 | 68 | 84 | 74 | 63 | |
| 1990's | 226 | 160 | 130 | 110 | 227 | 220 | 183 | 406 | 195 | 194 |
| 2000's | 157 | 226 | 304 | 162 | 183 | 215 | 282 | 289 | 373 | 274 |
| 2010's | 245 | 254 | 313 | 201 | 136 | 192 | 158 | 206 | 254 | 185 |
| 2020's | 226 | 165 | -- | -- | -- |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 11/28/2025 |
| Next Release Date: 8/31/2026 |