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Download Data (XLS File) |
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| Rocky Mountain (PADD 4) Normal Butane-Butylene Stocks at Bulk Terminals (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 4 | 4 | 2 | 6 | 2 | 6 | 4 | 4 | 4 | 4 | 7 | 4 |
| 1994 | 2 | 2 | 4 | 3 | 3 | 2 | 5 | 3 | 2 | 2 | 3 | 4 |
| 1995 | 10 | 2 | 4 | 7 | 4 | 3 | 2 | 2 | 4 | 2 | 2 | 2 |
| 1996 | 3 | 3 | 4 | 3 | 5 | 3 | 3 | 3 | 2 | 2 | 1 | 3 |
| 1997 | 2 | 3 | 4 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 4 |
| 1998 | 1 | 3 | 5 | 3 | 2 | 3 | 5 | 6 | 2 | 3 | 4 | 1 |
| 1999 | 3 | 4 | 5 | 1 | 2 | 4 | 2 | 3 | 2 | 2 | 2 | 2 |
| 2000 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | ||
| 2001 | 1 | 1 | 2 | 3 | 2 | |||||||
| 2002 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 2 | |||
| 2003 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||
| 2004 | 1 | 1 | 2 | 1 | 2 | |||||||
| 2005 | 1 | |||||||||||
| 2006 | 2 | 2 | 4 | 2 | 2 | |||||||
| 2007 | 3 | 3 | ||||||||||
| 2008 | 1 | 1 | ||||||||||
| 2009 | 1 | 1 | 3 | 2 | 5 | 2 | 2 | 6 | 3 | 2 | 3 | 3 |
| 2010 | 2 | 5 | 3 | 3 | 5 | 5 | 1 | 6 | 4 | 1 | 3 | 4 |
| 2011 | 4 | 4 | 3 | 2 | 6 | 4 | 5 | 6 | 6 | 5 | 5 | 7 |
| 2012 | 7 | 7 | 9 | 4 | 5 | 2 | 2 | 3 | 3 | 4 | 3 | 3 |
| 2013 | 2 | 3 | 5 | 3 | 3 | 5 | 3 | 3 | 3 | 2 | 3 | 3 |
| 2014 | 4 | 3 | 3 | 3 | 67 | 215 | 371 | 488 | 700 | 696 | 520 | 313 |
| 2015 | 85 | 38 | 107 | 211 | 363 | 513 | 728 | 899 | 960 | 990 | 871 | 525 |
| 2016 | 173 | 70 | 89 | 247 | 474 | 699 | 1,036 | 1,251 | 1,350 | 1,259 | 854 | 434 |
| 2017 | 84 | 10 | 101 | 350 | 663 | 871 | 1,050 | 1,271 | 1,365 | 1,277 | 831 | 431 |
| 2018 | 80 | 37 | 39 | 333 | 674 | 1,025 | 1,261 | 1,409 | 1,496 | 1,358 | 845 | 366 |
| 2019 | 40 | 53 | 88 | 256 | 502 | 739 | 1,059 | 1,265 | 1,364 | 1,226 | 773 | 276 |
| 2020 | 37 | 38 | 142 | 422 | 692 | 867 | 1,251 | 1,522 | 1,598 | 1,438 | 987 | 435 |
| 2021 | 62 | 19 | 58 | 385 | 707 | 1,102 | 1,452 | 1,889 | 2,039 | 1,926 | 1,446 | 992 |
| 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 |