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Download Data (XLS File) |
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| Rocky Mountain (PADD 4) Normal Butane-Butylene 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 | 216 | 229 | 180 | 156 | 180 | 174 | 114 | |||
| 2000's | 156 | 205 | 150 | 193 | 101 | 211 | 180 | 213 | 175 | 282 |
| 2010's | 221 | 170 | 267 | 212 | 226 | 220 | 247 | 273 | 255 | 307 |
| 2020's | 358 | 239 | -- | -- | -- |
| - = 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 |