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| Rocky Mountain (PADD 4) Refinery Net Production of Normal Butane-Butylene (Thousand Barrels) | ||||||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2000's | -745 | -19 | 145 | 77 | 685 | |||||
| 2010's | 568 | -115 | 294 | 1,005 | 604 | 1,258 | 1,194 | 1,073 | 445 | 600 |
| 2020's | 555 | 459 | -- | -- | -- |
| - = 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 |