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Download Data (XLS File) |
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| Midwest (PADD 2) Product Supplied of Isobutane-Isobutylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989 | 4 | -6 | -3 | -15 | -10 | -11 | -4 | -14 | -14 | -12 | -4 | 4 |
| 1990 | 3 | 5 | -7 | 1 | -1 | -5 | -10 | -2 | -6 | 19 | -1 | 2 |
| 1991 | 4 | -4 | 6 | 1 | -11 | -15 | -1 | -7 | -3 | 0 | 2 | -6 |
| 1992 | 2 | 2 | -6 | -3 | -1 | 7 | -5 | -5 | -8 | 2 | 0 | -5 |
| 1993 | -1 | -6 | -3 | 5 | 18 | -4 | 0 | 1 | 12 | 6 | 6 | |
| 1994 | 1 | 3 | 6 | 7 | 2 | -9 | -2 | -3 | 4 | 14 | 14 | -4 |
| 1995 | 3 | 4 | -10 | 12 | 2 | 2 | 9 | -3 | -9 | -4 | 11 | -4 |
| 1996 | 1 | -1 | 2 | -7 | 9 | 9 | 3 | 5 | -2 | 25 | 3 | 14 |
| 1997 | 2 | 17 | 10 | 3 | 10 | 13 | 17 | 9 | 2 | 12 | 9 | 18 |
| 1998 | 27 | 4 | 15 | 13 | 7 | 3 | 5 | -6 | 8 | 32 | 13 | 12 |
| 1999 | 9 | 10 | 10 | 11 | 8 | 8 | 14 | 4 | 8 | 14 | 16 | 20 |
| 2000 | 13 | 14 | 15 | 7 | 19 | 15 | 8 | 4 | -2 | 17 | 17 | 10 |
| 2001 | 15 | 11 | 10 | 10 | 7 | 6 | 1 | 2 | -9 | 3 | 20 | -3 |
| 2002 | -8 | 2 | 2 | -1 | -9 | -2 | -4 | -9 | -9 | -3 | -10 | 0 |
| 2003 | 4 | 5 | 4 | 4 | 2 | 1 | 1 | 4 | 8 | 13 | -2 | 21 |
| 2004 | -5 | 2 | -9 | 0 | -9 | -9 | -3 | 0 | -16 | 28 | -1 | 0 |
| 2005 | 2 | -5 | -6 | -7 | -7 | -8 | -7 | -7 | -2 | -6 | 1 | -3 |
| 2006 | 0 | 1 | -5 | -10 | -3 | -12 | -11 | -8 | -12 | -2 | -4 | 3 |
| 2007 | 6 | 1 | 5 | -7 | -17 | -6 | -12 | -11 | -10 | 3 | 1 | 1 |
| 2008 | 8 | 9 | 3 | -1 | -9 | -13 | -6 | -15 | -7 | -3 | 2 | 0 |
| 2009 | 2 | 9 | 5 | 7 | 2 | 1 | 0 | 1 | -3 | 2 | 3 | 11 |
| 2010 | 1 | 6 | 5 | 6 | 1 | 4 | 10 | -1 | 3 | 1 | -10 | 12 |
| 2011 | 7 | 0 | 0 | 2 | -5 | 6 | 14 | 6 | 0 | 3 | 7 | 2 |
| 2012 | 2 | 1 | 4 | 10 | -2 | 2 | 5 | -5 | 4 | -7 | -4 | 0 |
| 2013 | 4 | -2 | 12 | 6 | 5 | 7 | 6 | -8 | 6 | -8 | 11 | 9 |
| 2014 | -1 | 9 | 10 | 6 | -7 | -3 | 3 | 2 | 7 | -6 | 5 | -2 |
| 2015 | 4 | 3 | 7 | 2 | 6 | -3 | 6 | 2 | 4 | 5 | 7 | 15 |
| 2016 | 3 | 5 | 5 | 6 | 10 | 8 | 9 | 1 | 7 | 4 | 5 | -2 |
| 2017 | 6 | 15 | 8 | 14 | 15 | 14 | -3 | 15 | 13 | 6 | 17 | 10 |
| 2018 | 13 | 2 | 23 | 15 | 14 | 17 | 20 | 16 | 20 | 20 | 17 | 17 |
| 2019 | 8 | 18 | 16 | 5 | 5 | 7 | 12 | 21 | 7 | 21 | 4 | 6 |
| 2020 | 3 | 29 | 11 | 23 | 28 | 17 | 34 | 14 | 19 | 28 | 21 | 19 |
| 2021 | 22 | 9 | 19 | 18 | 19 | 26 | 21 | 31 | 17 | 28 | 39 | 30 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2025 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 12/31/2025 |
| Next Release Date: 1/30/2026 |