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| Refining District North Louisiana-Arkansas Natural Gas Plant Stocks of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 4 | 5 | 6 | 6 | 5 | 5 | 7 | 1 | 1 | 2 | 5 | |
| 1994 | 3 | 5 | 2 | 2 | 4 | 2 | 3 | 3 | 2 | 2 | 3 | 4 |
| 1995 | 2 | 3 | 7 | 5 | 3 | 7 | 9 | 6 | 6 | 6 | 5 | 4 |
| 1996 | 5 | 3 | 4 | 2 | 2 | 4 | 3 | 7 | 10 | 8 | 6 | 7 |
| 1997 | 2 | 1 | 3 | 3 | 3 | 5 | 5 | 4 | 5 | 5 | 7 | 8 |
| 1998 | 4 | 4 | 2 | 2 | 2 | 2 | 1 | 2 | 3 | 2 | 3 | 1 |
| 1999 | 1 | 2 | 3 | 1 | 3 | 1 | 2 | 2 | 11 | 12 | 11 | 12 |
| 2000 | 4 | 3 | 3 | 3 | 4 | 2 | 2 | 3 | 3 | 3 | 4 | 1 |
| 2001 | 1 | 1 | 1 | 1 | 1 | 3 | 2 | 3 | 1 | 1 | ||
| 2002 | 1 | 2 | 5 | 3 | 2 | 3 | 3 | 2 | 2 | 2 | 1 | 1 |
| 2003 | 1 | 3 | 1 | 3 | 2 | 1 | 1 | 2 | 3 | |||
| 2005 | 2 | |||||||||||
| 2006 | 1 | |||||||||||
| 2009 | 1 | 1 | 1 | |||||||||
| 2010 | 1 | 1 | ||||||||||
| 2023 | 1 | |||||||||||
| 2024 | 1 | 1 | ||||||||||
| - = 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 |