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Download Data (XLS File) |
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| Rocky Mountain (PADD 4) Natural Gas Plant Stocks of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 15 | 17 | 15 | 18 | 12 | 24 | 12 | 16 | 12 | 16 | 10 | 20 |
| 1994 | 11 | 5 | 9 | 11 | 10 | 5 | 26 | 18 | 16 | 13 | 16 | 8 |
| 1995 | 8 | 7 | 9 | 15 | 10 | 13 | 8 | 8 | 17 | 13 | 5 | 12 |
| 1996 | 13 | 8 | 14 | 19 | 12 | 11 | 8 | 12 | 13 | 14 | 16 | 16 |
| 1997 | 20 | 20 | 19 | 18 | 17 | 17 | 16 | 16 | 16 | 27 | 17 | 14 |
| 1998 | 13 | 21 | 22 | 25 | 13 | 15 | 29 | 30 | 12 | 17 | 18 | 16 |
| 1999 | 12 | 18 | 36 | 28 | 17 | 17 | 29 | 23 | 19 | 16 | 16 | 16 |
| 2000 | 23 | 18 | 22 | 22 | 38 | 21 | 16 | 22 | 29 | 16 | 12 | 22 |
| 2001 | 30 | 29 | 22 | 16 | 21 | 30 | 29 | 23 | 19 | 13 | 8 | 14 |
| 2002 | 21 | 32 | 33 | 45 | 49 | 41 | 42 | 37 | 42 | 47 | 55 | 69 |
| 2003 | 78 | 73 | 85 | 21 | 27 | 17 | 22 | 23 | 15 | 14 | 18 | 17 |
| 2004 | 14 | 29 | 26 | 22 | 26 | 19 | 20 | 16 | 18 | 14 | 20 | 21 |
| 2005 | 12 | 12 | 14 | 14 | 12 | 10 | 14 | 10 | 14 | 8 | 15 | 15 |
| 2006 | 18 | 17 | 10 | 14 | 16 | 25 | 13 | 11 | 9 | 16 | 19 | 11 |
| 2007 | 14 | 14 | 16 | 14 | 16 | 15 | 10 | 15 | 16 | 14 | 15 | 21 |
| 2008 | 18 | 25 | 15 | 15 | 16 | 16 | 11 | 15 | 18 | 8 | 11 | 10 |
| 2009 | 10 | 12 | 9 | 10 | 12 | 11 | 10 | 11 | 12 | 9 | 11 | 10 |
| 2010 | 8 | 11 | 11 | 13 | 10 | 10 | 11 | 11 | 6 | 7 | 6 | 6 |
| 2011 | 7 | 5 | 5 | 6 | 10 | 6 | 7 | 7 | 6 | 8 | 6 | 6 |
| 2012 | 4 | 7 | 10 | 9 | 6 | 7 | 7 | 5 | 7 | 6 | 5 | 7 |
| 2013 | 8 | 8 | 11 | 4 | 7 | 9 | 7 | 5 | 9 | 7 | 9 | 9 |
| 2014 | 9 | 7 | 9 | 7 | 9 | 8 | 5 | 8 | 8 | 11 | 12 | 9 |
| 2015 | 9 | 8 | 9 | 7 | 5 | 6 | 6 | 7 | 6 | 6 | 6 | 9 |
| 2016 | 8 | 9 | 8 | 7 | 6 | 8 | 9 | 8 | 9 | 10 | 9 | 9 |
| 2017 | 8 | 11 | 8 | 9 | 7 | 11 | 10 | 10 | 12 | 11 | 11 | 10 |
| 2018 | 12 | 10 | 13 | 12 | 14 | 13 | 12 | 14 | 12 | 12 | 12 | 11 |
| 2019 | 17 | 14 | 83 | 16 | 19 | 17 | 15 | 18 | 18 | 16 | 20 | 18 |
| 2020 | 15 | 22 | 18 | 14 | 15 | 16 | 14 | 14 | 14 | 16 | 16 | 13 |
| 2021 | 15 | 14 | 11 | 18 | 16 | 21 | 21 | 19 | 18 | 20 | 19 | 21 |
| 2022 | 17 | 16 | 15 | 18 | 19 | 17 | 15 | 15 | 16 | 16 | 16 | 14 |
| 2023 | 14 | 17 | 16 | 17 | 18 | 18 | 17 | 17 | 17 | 20 | 17 | 15 |
| 2024 | 18 | 21 | 20 | 23 | 20 | 18 | ||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 8/30/2024 |
| Next Release Date: 9/30/2024 |