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| Refining District Texas Gulf Coast Refinery and Blender Net Production of Isobutylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | W | W | ||||||||||
| 1994 | W | W | W | W | W | W | W | W | W | W | W | |
| 1995 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1996 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1997 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1998 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1999 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2000 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2001 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2002 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2003 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2005 | -7 | -27 | -122 | -155 | -89 | |||||||
| 2006 | 64 | |||||||||||
| 2007 | 64 | -1 | ||||||||||
| 2008 | 36 | 10 | -23 | -7 | 23 | 13 | 58 | 8 | -8 | 9 | 41 | 39 |
| 2009 | 133 | -12 | -20 | 9 | 9 | 3 | 29 | 21 | 32 | 43 | -10 | 39 |
| 2010 | -15 | -60 | -18 | -42 | -12 | -15 | -13 | -12 | -14 | -14 | -35 | -13 |
| 2011 | -10 | -6 | -34 | -80 | -27 | -15 | -13 | -14 | -18 | -19 | -12 | |
| 2012 | -13 | -7 | -7 | -22 | -17 | -19 | -31 | -14 | -11 | -11 | -15 | |
| 2013 | -14 | -6 | -11 | -12 | -19 | -19 | -17 | -14 | -14 | -15 | -15 | -14 |
| 2014 | -13 | -9 | -16 | -17 | -20 | -18 | -19 | -22 | -23 | -29 | -20 | -37 |
| 2015 | -21 | -29 | -21 | -27 | -23 | -26 | -24 | -21 | -19 | -24 | -22 | -24 |
| 2016 | -27 | -24 | -25 | -20 | -28 | -27 | -29 | -57 | -18 | -16 | -16 | -14 |
| 2017 | -16 | -18 | -41 | -32 | -54 | -50 | -13 | -14 | -22 | -29 | ||
| 2018 | -34 | -26 | -23 | -23 | -27 | -43 | -34 | -21 | -24 | -43 | -35 | -32 |
| 2019 | -33 | -42 | -28 | -26 | -45 | -44 | -32 | -34 | -32 | -27 | -36 | -40 |
| 2020 | -37 | -36 | -14 | -17 | -25 | -28 | -28 | -37 | -36 | -24 | -33 | -41 |
| 2021 | -29 | -20 | -36 | -64 | -53 | -68 | -61 | -44 | -51 | -33 | -39 | -45 |
| 2022 | -21 | -21 | -25 | -27 | -30 | -30 | -40 | -57 | ||||
| 2023 | 1 | |||||||||||
| 2024 | 1 | 2 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | |||
| 2025 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | |||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 10/31/2025 |
| Next Release Date: 11/28/2025 |