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| Rocky Mountain (PADD 4) Product Supplied of Propane and Propylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1986 | 57 | 49 | 47 | 51 | 49 | 42 | 39 | 42 | 42 | 47 | 50 | 51 |
| 1987 | 54 | 49 | 47 | 45 | 40 | 41 | 42 | 42 | 46 | 50 | 52 | 61 |
| 1988 | 63 | 62 | 58 | 53 | 52 | 50 | 50 | 50 | 52 | 56 | 57 | 63 |
| 1989 | 48 | 51 | 38 | 32 | 30 | 29 | 28 | 33 | 39 | 40 | 47 | 49 |
| 1990 | 42 | 45 | 44 | 33 | 31 | 30 | 34 | 36 | 37 | 37 | 39 | 48 |
| 1991 | 53 | 34 | 38 | 35 | 33 | 29 | 34 | 37 | 40 | 45 | 47 | 47 |
| 1992 | 47 | 40 | 35 | 34 | 31 | 31 | 26 | 29 | 36 | 32 | 40 | 47 |
| 1993 | 48 | 41 | 36 | 28 | 22 | 23 | 24 | 30 | 36 | 31 | 41 | 49 |
| 1994 | 37 | 39 | 33 | 28 | 25 | 23 | 22 | 26 | 25 | 28 | 39 | 40 |
| 1995 | 36 | 32 | 32 | 28 | 32 | 25 | 26 | 26 | 34 | 38 | 41 | 42 |
| 1996 | 50 | 45 | 33 | 29 | 22 | 24 | 25 | 23 | 26 | 32 | 37 | 43 |
| 1997 | 42 | 40 | 26 | 27 | 18 | 12 | 17 | 21 | 17 | 28 | 37 | 43 |
| 1998 | 43 | 35 | 21 | 15 | 12 | 11 | 10 | 12 | 18 | 17 | 25 | 33 |
| 1999 | 35 | 27 | 27 | 22 | 18 | 15 | 21 | 22 | 23 | 25 | 33 | 38 |
| 2000 | 59 | 45 | 41 | 29 | 16 | 18 | 17 | 25 | 33 | 32 | 46 | 55 |
| 2001 | 47 | 48 | 46 | 29 | 22 | 20 | 19 | 26 | 28 | 27 | 34 | 43 |
| 2002 | 50 | 46 | 38 | 20 | 17 | 16 | 16 | 20 | 22 | 30 | 31 | 38 |
| 2003 | 42 | 50 | 35 | 28 | 16 | 16 | 16 | 18 | 24 | 26 | 25 | 50 |
| 2004 | 50 | 42 | 35 | 24 | 17 | 16 | 22 | 25 | 27 | 30 | 39 | 58 |
| 2005 | 50 | 42 | 38 | 26 | 18 | 17 | 18 | 27 | 32 | 35 | 39 | 56 |
| 2006 | 51 | 50 | 45 | 31 | 29 | 23 | 25 | 29 | 34 | 38 | 47 | 54 |
| 2007 | 59 | 56 | 42 | 30 | 25 | 27 | 33 | 25 | 39 | 50 | 45 | 48 |
| 2008 | 66 | 56 | 51 | 47 | 41 | 31 | 46 | 30 | 42 | 51 | 43 | 56 |
| 2009 | 57 | 48 | 41 | 32 | 25 | 23 | 25 | 23 | 23 | 34 | 40 | 46 |
| 2010 | 50 | 37 | 37 | 28 | 27 | 23 | 27 | 24 | 28 | 22 | 39 | 44 |
| 2011 | 46 | 51 | 47 | 25 | 28 | 20 | 22 | 30 | 27 | 38 | 44 | 51 |
| 2012 | 51 | 48 | 47 | 33 | 20 | 25 | 24 | 33 | 32 | 29 | 36 | 44 |
| 2013 | 50 | 56 | 36 | 20 | 33 | 37 | 21 | 43 | 33 | 45 | 38 | 56 |
| 2014 | 57 | 48 | 43 | 31 | 22 | 33 | 26 | 31 | 27 | 40 | 38 | 61 |
| 2015 | 54 | 49 | 21 | 26 | 22 | 32 | 20 | 35 | 24 | 35 | 37 | 60 |
| 2016 | 49 | 62 | 35 | 24 | 29 | 15 | 21 | 24 | 31 | 40 | 36 | 47 |
| 2017 | 59 | 58 | 40 | 22 | 23 | 28 | 24 | 36 | 23 | 38 | 42 | 49 |
| 2018 | 54 | 43 | 39 | 23 | 18 | 17 | 24 | 30 | 14 | 46 | 50 | 60 |
| 2019 | 78 | 57 | 62 | 41 | 33 | 45 | 46 | 58 | 64 | 72 | 81 | 86 |
| 2020 | 23 | 57 | 48 | 38 | 38 | 30 | 20 | 32 | 46 | 42 | 53 | 89 |
| 2021 | 80 | 69 | 68 | 47 | 48 | 46 | 45 | 42 | 52 | 15 | 58 | 65 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2025 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2026 | -- | -- | -- | -- | ||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 6/30/2026 |
| Next Release Date: 7/31/2026 |