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| Refining District Indiana-Illinois-Kentucky Refinery Net Production of Isobutylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 26 | 36 | ||||||||||
| 2011 | 52 | 45 | 62 | 46 | 10 | 29 | 34 | 36 | 42 | 27 | 44 | 52 |
| 2012 | 40 | 37 | 61 | 39 | 46 | 39 | 20 | 38 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 3/31/2026 |
| Next Release Date: 4/30/2026 |