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| East Coast (PADD 1) Stock Change of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 173 | -19 | -146 | 4 | 58 | 58 | -23 | -47 | 7 | -35 | 92 | -124 |
| 2011 | 52 | -46 | 81 | -28 | 54 | -34 | 71 | -88 | -40 | 112 | -48 | -43 |
| 2012 | 96 | 22 | -32 | 44 | -62 | -8 | 97 | -152 | 42 | 15 | 35 | -38 |
| 2013 | 101 | -115 | 60 | -39 | 42 | -87 | 44 | 34 | -20 | -37 | -43 | -52 |
| 2014 | -32 | 56 | 49 | -16 | -40 | 127 | 23 | 8 | 4 | -23 | -201 | -20 |
| 2015 | 104 | -40 | 32 | -16 | -3 | -3 | -20 | 37 | -21 | -18 | -6 | 10 |
| 2016 | -28 | 1 | 12 | -6 | 9 | -36 | 22 | -8 | -58 | 117 | -28 | -55 |
| 2017 | 71 | -10 | -38 | -5 | 1 | -18 | -12 | 24 | -9 | 18 | 7 | 13 |
| 2018 | -44 | 59 | 12 | -60 | 33 | -8 | -25 | 16 | -14 | -12 | 123 | -62 |
| 2019 | -17 | 78 | -13 | -47 | -13 | -6 | 12 | -25 | -8 | 21 | 16 | -22 |
| 2020 | -28 | 13 | 36 | -32 | 22 | 34 | 7 | -33 | 34 | 19 | -57 | -1 |
| 2021 | -13 | -11 | -21 | -1 | 12 | -16 | -16 | 2 | 0 | 57 | -74 | 33 |
| 2022 | -25 | 12 | 25 | -26 | -3 | 34 | -50 | -3 | 14 | -11 | 14 | 23 |
| 2023 | -30 | 5 | 29 | 22 | -38 | 43 | -1 | -40 | -20 | 47 | -2 | -17 |
| 2024 | 37 | -17 | 35 | 19 | -60 | 6 | -1 | -7 | -1 | -4 | 43 | -22 |
| 2025 | 22 | -39 | 51 | -28 | -2 | -27 | -16 | 13 | -28 | 66 | -21 | |
| - = 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 |