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| Rocky Mountain (PADD 4) Field Production of Normal Butane (Thousand Barrels per Day) | ||||||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1980's | 18 | |||||||||
| 1990's | 17 | 20 | 16 | 16 | 16 | 18 | 18 | 17 | 19 | 20 |
| 2000's | 23 | 24 | 25 | 24 | 25 | 24 | 24 | 26 | 31 | 34 |
| 2010's | 37 | 40 | 41 | 42 | 46 | 52 | 54 | 54 | 58 | 63 |
| 2020's | 70 | 75 | 73 | 75 | 76 | 77 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 3/31/2026 |
| Next Release Date: 8/31/2026 |