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Download Data (XLS File) |
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| Rocky Mountain (PADD 4) Imports of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 10 | 2 | 4 | 0 | 3 | 14 | 12 | 7 | 15 | 0 | 56 | 14 |
| 1996 | 8 | 14 | 37 | 14 | 13 | 69 | 29 | 43 | 43 | 31 | 9 | 0 |
| 1997 | 0 | 8 | 12 | 32 | 32 | 23 | 23 | 15 | 0 | 0 | 0 | 0 |
| 1998 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1999 | 0 | 0 | 0 | 5 | 4 | 11 | 14 | 16 | 17 | 18 | 23 | 10 |
| 2000 | 5 | 11 | 10 | 3 | 13 | 12 | 13 | 0 | 0 | 0 | 0 | 0 |
| 2001 | 0 | 16 | 19 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| 2002 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
| 2003 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2004 | 2 | 14 | 2 | |||||||||
| 2007 | 5 | |||||||||||
| 2008 | 4 | |||||||||||
| 2009 | 9 | 8 | 4 | 4 | 4 | 20 | 3 | |||||
| 2010 | 6 | 4 | 4 | 11 | 3 | 6 | 7 | 12 | 5 | |||
| 2011 | 7 | 8 | 3 | 3 | 16 | 18 | 23 | |||||
| 2012 | 17 | 13 | 6 | 19 | 19 | 19 | ||||||
| 2013 | 18 | 19 | 22 | 7 | 11 | 6 | 19 | 25 | 11 | 16 | 17 | 11 |
| 2014 | 13 | 14 | 19 | 25 | 11 | 18 | 17 | 9 | 2 | 19 | 13 | 16 |
| 2015 | 15 | 16 | 11 | 15 | 15 | 17 | 22 | 15 | 15 | 20 | 15 | 19 |
| 2016 | 15 | 16 | 20 | 23 | 38 | 22 | 14 | 21 | 10 | 1 | 1 | |
| 2017 | 7 | 5 | 28 | 24 | 38 | 52 | 36 | 1 | 5 | 2 | 2 | 9 |
| 2018 | 16 | 15 | 41 | 43 | 8 | 39 | 21 | 18 | 10 | 9 | 9 | 12 |
| 2019 | 26 | 2 | 12 | 28 | 19 | 13 | 3 | 24 | 26 | 31 | 18 | 31 |
| 2020 | 4 | 19 | 19 | 2 | 4 | 6 | 4 | 19 | 2 | 2 | 5 | 13 |
| 2021 | 14 | 23 | 8 | 2 | 1 | 11 | 5 | 2 | 2 | 1 | ||
| 2022 | 4 | 18 | ||||||||||
| 2023 | 1 | |||||||||||
| 2024 | 3 | 4 | 4 | 8 | 31 | 47 | 22 | 18 | 22 | 9 | 4 | |
| 2025 | 7 | 8 | 7 | 4 | 21 | 18 | 7 | 34 | 5 | |||
| - = 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: 12/31/2025 |