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Download Data (XLS File) |
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| West Coast (PADD 5) Stock Change of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 128 | 15 | -79 | 87 | -72 | 72 | -36 | -95 | 32 | 70 | -44 | -25 |
| 2011 | -17 | 132 | -85 | 236 | -185 | 11 | 16 | -58 | 27 | -228 | 191 | -6 |
| 2012 | 10 | -25 | 91 | 99 | -78 | -26 | 82 | -91 | 57 | 23 | -158 | -24 |
| 2013 | 57 | 243 | -98 | -142 | -6 | 95 | -179 | -76 | 154 | -2 | 38 | -147 |
| 2014 | -1 | 179 | 99 | -17 | -104 | 68 | 53 | -131 | -10 | -46 | -10 | -73 |
| 2015 | 57 | 93 | 20 | -21 | -81 | -43 | 31 | -14 | 68 | -68 | -5 | -37 |
| 2016 | 4 | 79 | 40 | -55 | 127 | -34 | 83 | -105 | 70 | -210 | -2 | 12 |
| 2017 | 21 | 31 | -80 | 26 | 17 | 16 | -32 | 87 | -27 | 66 | -48 | -133 |
| 2018 | 28 | 96 | 219 | -149 | -63 | 10 | -46 | -25 | 74 | -181 | 17 | 8 |
| 2019 | -37 | 32 | 17 | 70 | -17 | 28 | 87 | -60 | -51 | -57 | 41 | -69 |
| 2020 | 39 | -21 | 139 | -45 | -34 | 50 | -30 | -20 | -47 | -13 | -8 | -26 |
| 2021 | 16 | -11 | 7 | 120 | -82 | 11 | -62 | 45 | -54 | -31 | 13 | -10 |
| 2022 | 5 | 91 | 9 | -20 | -29 | 39 | -28 | -68 | 43 | -23 | 17 | -74 |
| 2023 | 91 | -9 | 50 | -1 | 38 | 21 | -72 | 18 | -50 | -51 | 75 | 41 |
| 2024 | -113 | 52 | 112 | -75 | 90 | -45 | -58 | 14 | 37 | -136 | 87 | -32 |
| 2025 | 62 | 29 | 17 | -67 | -71 | 48 | 6 | 39 | -22 | -28 | -55 | |
| - = 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: 2/27/2026 |