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| East Coast (PADD 1) Refinery and Blender Net Production of Normal Butane-Butylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 5 | 8 | 10 | 8 | 5 | 10 | 9 | 10 | 12 | 5 | 10 | 7 |
| 1982 | 5 | 7 | 4 | 9 | 9 | 17 | 8 | 12 | 12 | 6 | 4 | 6 |
| 1983 | 2 | 2 | 4 | 5 | 8 | 6 | 4 | 9 | 7 | 4 | 3 | 4 |
| 1984 | 3 | 6 | 6 | 7 | 7 | 8 | 7 | 10 | 4 | 1 | 5 | 5 |
| 1985 | 4 | 4 | 6 | 8 | 2 | 5 | 5 | 5 | 4 | 0 | 4 | 6 |
| 1986 | 7 | 8 | 6 | 11 | 12 | 12 | 12 | 10 | 10 | 5 | 2 | 7 |
| 1987 | 7 | 6 | 8 | 10 | 7 | 10 | 12 | 12 | 10 | 11 | 7 | 5 |
| 1988 | 8 | 6 | 9 | 5 | 4 | 15 | 9 | 9 | 5 | 6 | 4 | 5 |
| 1989 | 10 | 4 | 3 | 7 | 10 | 12 | 15 | 12 | 4 | -4 | -5 | -2 |
| 1990 | -5 | -1 | 14 | 10 | 11 | 16 | 18 | 11 | -5 | -7 | -9 | -16 |
| 1991 | -14 | -5 | 6 | 12 | 11 | 14 | 17 | 15 | -12 | -17 | -17 | -13 |
| 1992 | -20 | -9 | 12 | 17 | 14 | 14 | 12 | 12 | -7 | -9 | -21 | -13 |
| 1993 | -9 | -8 | 5 | 17 | 14 | 17 | 15 | 15 | -7 | -16 | -8 | -8 |
| 1994 | -7 | -8 | 9 | 18 | 16 | 10 | 14 | 17 | -4 | -9 | -23 | -10 |
| 1995 | -15 | -8 | 8 | 26 | 23 | 24 | 19 | 14 | -6 | -19 | -15 | -13 |
| 1996 | -16 | -12 | -3 | 17 | 16 | 18 | 12 | 16 | -8 | -7 | -20 | -20 |
| 1997 | -3 | -5 | 3 | 16 | 14 | 13 | 18 | 16 | -15 | -22 | -29 | -33 |
| 1998 | -27 | -15 | -9 | 13 | 15 | 14 | 16 | 13 | -10 | -9 | -20 | -15 |
| 1999 | -23 | -25 | -1 | 22 | 16 | 12 | 14 | 16 | -14 | -23 | -28 | -35 |
| 2000 | -20 | 2 | -11 | 24 | 18 | 18 | 28 | 21 | -14 | -9 | -26 | -13 |
| 2001 | -6 | -9 | -2 | 21 | 24 | 25 | 21 | 22 | -9 | -15 | -24 | -12 |
| 2002 | -14 | -11 | -7 | 26 | 26 | 27 | 26 | 29 | -5 | -20 | -29 | -8 |
| 2003 | -13 | -11 | 0 | 27 | 33 | 27 | 35 | 29 | -8 | -18 | -33 | -23 |
| 2004 | -13 | -22 | 1 | 29 | 24 | 27 | 25 | 18 | -14 | -24 | -29 | -21 |
| 2005 | -16 | -16 | 0 | 33 | 24 | 26 | 30 | 20 | -25 | -34 | -41 | -22 |
| 2006 | -20 | -15 | -1 | 19 | 23 | 14 | 23 | 25 | -9 | -20 | -34 | -42 |
| 2007 | -36 | -16 | -5 | 21 | 27 | 28 | 25 | 30 | -14 | -24 | -34 | -13 |
| 2008 | -17 | -24 | -2 | 22 | 26 | 33 | 30 | 23 | -12 | -27 | -35 | -24 |
| 2009 | -11 | -14 | -9 | 24 | 25 | 39 | 30 | 24 | -7 | -15 | -35 | -17 |
| 2010 | -3 | -3 | 3 | 11 | 18 | 19 | 22 | 22 | -8 | -7 | -23 | -20 |
| 2011 | -10 | 0 | 6 | 17 | 27 | 32 | 24 | 29 | -9 | -11 | -20 | -14 |
| 2012 | -11 | 0 | 1 | 13 | 21 | 22 | 27 | 22 | -15 | -18 | -8 | -7 |
| 2013 | -1 | -4 | -1 | 15 | 21 | 22 | 20 | 19 | -11 | -17 | -17 | -11 |
| 2014 | -7 | -6 | -8 | 14 | 22 | 25 | 26 | 23 | -16 | -17 | -19 | -9 |
| 2015 | -5 | -5 | -3 | 13 | 18 | 21 | 16 | 13 | -2 | -5 | -8 | -26 |
| 2016 | -20 | -24 | -17 | 10 | 19 | 15 | 12 | 18 | -14 | -12 | -27 | -29 |
| 2017 | -25 | -23 | -8 | 14 | 21 | 20 | 17 | 14 | -25 | -24 | -24 | -27 |
| 2018 | -9 | -8 | -3 | 11 | 19 | 20 | 19 | 18 | -5 | -9 | -7 | -11 |
| 2019 | -15 | -7 | -5 | 14 | 23 | 13 | 16 | 9 | -1 | -8 | -14 | -16 |
| 2020 | -11 | -9 | -2 | 2 | 7 | 7 | 7 | 4 | -11 | -14 | -22 | -13 |
| 2021 | -17 | -14 | -14 | 8 | 7 | 11 | 9 | 8 | -11 | -14 | -21 | -18 |
| 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 |