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| East Coast (PADD 1) Shipments by Pipeline, Tanker, and Barge to Other PADDs of Isobutane-Isobutylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1990 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1991 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1992 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1993 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1994 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1995 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1996 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1997 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1998 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1999 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 25 |
| 2000 | 10 | 0 | 11 | 0 | 0 | 0 | 0 | 17 | 3 | 0 | 0 | 0 |
| 2001 | 0 | 5 | 0 | 15 | 20 | 23 | 0 | 5 | 0 | 0 | 10 | 0 |
| 2002 | 10 | 8 | 63 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 |
| 2006 | 0 | |||||||||||
| 2007 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2008 | 0 | 0 | ||||||||||
| 2009 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2010 | 7 | 8 | 0 | 18 | 3 | 0 | 0 | 62 | 0 | 0 | 7 | 0 |
| 2011 | 16 | 22 | 0 | 36 | 31 | 43 | 0 | 4 | 11 | 4 | 4 | 15 |
| 2012 | 16 | 33 | 49 | 7 | 29 | 33 | 34 | 62 | 28 | 38 | 18 | 20 |
| 2013 | 70 | 68 | 129 | 7 | 0 | 27 | 29 | 25 | 18 | 0 | 34 | 12 |
| 2014 | 32 | 30 | 20 | 159 | 46 | 77 | 34 | 73 | 101 | 4 | 71 | 77 |
| 2015 | 75 | 67 | 72 | 144 | 119 | 52 | 102 | 137 | 165 | 163 | 42 | 75 |
| 2016 | 234 | 138 | 137 | 111 | 193 | 96 | 48 | 69 | 104 | 232 | 123 | 40 |
| 2017 | 200 | 311 | 271 | 299 | 321 | 304 | 290 | 355 | 323 | 370 | 399 | 402 |
| 2018 | 306 | 319 | 521 | 392 | 494 | 444 | 403 | 329 | 397 | 354 | 410 | 488 |
| 2019 | 446 | 438 | 287 | 329 | 405 | 350 | 441 | 534 | 480 | 448 | 378 | 403 |
| 2020 | 589 | 521 | 444 | 398 | 332 | 321 | 576 | 310 | 509 | 559 | 400 | 481 |
| 2021 | 503 | 401 | 539 | 434 | 546 | 461 | 458 | 472 | 412 | 586 | 528 | 455 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2025 | -- | -- | -- | -- | -- | -- | -- | -- | ||||
| - = 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 |