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| Refining District Louisiana Gulf Coast Refinery Net Production of Isobutane-Isobutylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | -1 | -3 | -4 | -4 | -4 | -2 | 0 | -3 | 0 | 1 | 4 | -1 |
| 2006 | 0 | -1 | 7 | 3 | 8 | 6 | 7 | 8 | 7 | 7 | 3 | 8 |
| 2007 | 11 | 11 | 12 | 10 | 14 | 14 | 15 | 12 | 11 | 13 | 8 | 5 |
| 2008 | 3 | 11 | 10 | 6 | 9 | 7 | 4 | 7 | 4 | 7 | 6 | 9 |
| 2009 | 6 | 7 | 13 | 6 | 5 | 10 | 8 | 2 | 5 | 4 | 8 | 7 |
| 2010 | 5 | 2 | 5 | 7 | 8 | 8 | 5 | 6 | 7 | 5 | 3 | 4 |
| 2011 | 6 | 9 | 11 | 8 | 12 | 9 | 9 | 11 | 9 | 6 | 6 | 6 |
| 2012 | 5 | 6 | 5 | 10 | 6 | 6 | 10 | 8 | 5 | 13 | 7 | 6 |
| 2013 | 7 | 6 | 6 | 8 | 9 | 7 | 7 | 5 | 6 | 3 | 5 | 6 |
| 2014 | 6 | 8 | 8 | 6 | 7 | 7 | 9 | 8 | 6 | 8 | 7 | 5 |
| 2015 | 6 | 5 | 6 | 9 | 11 | 9 | 9 | 8 | 8 | 7 | 9 | 9 |
| 2016 | 7 | 9 | 7 | 8 | 8 | 10 | 8 | 6 | 5 | 3 | 4 | 4 |
| 2017 | 4 | 6 | 9 | 6 | 8 | 10 | 11 | 11 | 5 | 11 | 4 | 2 |
| 2018 | 8 | 4 | 7 | 8 | 7 | 9 | 7 | 10 | 4 | 4 | 2 | 6 |
| 2019 | 4 | 3 | 7 | 5 | 8 | 8 | 4 | 5 | 5 | 3 | 1 | 3 |
| 2020 | 1 | 1 | 4 | 3 | 2 | 5 | 6 | 4 | 1 | 4 | 2 | 3 |
| 2021 | 3 | 7 | 10 | 10 | 9 | 11 | 10 | 4 | 1 | 9 | 5 | 4 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2025 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | |
| - = 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 |