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Download Data (XLS File) |
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| Rocky Mountain (PADD 4) Stock Change of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 3 | 10 | -11 | -16 | 49 | -28 | -6 | 24 | -16 | -4 | -2 | -7 |
| 2011 | 6 | -4 | 31 | -13 | 8 | 13 | -19 | -2 | -33 | 28 | -6 | -5 |
| 2012 | 3 | 1 | 0 | 8 | 2 | 10 | -23 | -29 | 41 | -15 | 40 | -47 |
| 2013 | 23 | 36 | -52 | 37 | 0 | -14 | -7 | -9 | 33 | 2 | -15 | 2 |
| 2014 | 22 | -10 | 62 | -28 | -3 | 4 | 16 | 5 | 21 | -7 | -9 | 18 |
| 2015 | -6 | -2 | 0 | 7 | -40 | 19 | 8 | 9 | -40 | 38 | 40 | 28 |
| 2016 | -47 | 39 | -21 | -35 | 4 | -13 | -23 | 36 | -29 | 2 | 20 | -10 |
| 2017 | -3 | -9 | -4 | 8 | 13 | -17 | 12 | -18 | 22 | -3 | 17 | -1 |
| 2018 | 9 | -4 | -28 | 14 | -17 | -3 | -6 | 12 | -20 | 7 | 25 | 3 |
| 2019 | 29 | 48 | 80 | -160 | 15 | 26 | -20 | -11 | -16 | 26 | -13 | 2 |
| 2020 | 195 | 20 | 8 | -19 | -47 | -21 | -14 | 18 | 2 | 9 | 18 | -6 |
| 2021 | -23 | 20 | 21 | -13 | -22 | -26 | 14 | 1 | 1 | -29 | 64 | -6 |
| 2022 | 40 | -28 | -40 | 36 | -21 | 23 | -11 | -22 | 19 | 4 | 0 | -13 |
| 2023 | 50 | -27 | -16 | 2 | -2 | 21 | -60 | 25 | 2 | -36 | 63 | 7 |
| 2024 | 72 | -74 | -12 | 17 | -21 | -10 | 10 | 17 | -25 | 14 | 4 | 19 |
| 2025 | 19 | -21 | -3 | -31 | 19 | 4 | -12 | 21 | -25 | |||
| - = 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 |