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| Rocky Mountain (PADD 4) Residual Fuel Oil Sulfur Greater Than 1% Retail Sales by Refiners (Thousand Gallons per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 49.6 | 37.8 | W | W | W | 67.7 | 37.0 | 73.3 | 97.2 | 61.5 | 62.9 | 77.5 |
| 1984 | 48.7 | 50.4 | 44.6 | 59.5 | 37.7 | 31.2 | 29.7 | 34.2 | 56.2 | 58.7 | 37.9 | 53.5 |
| 1985 | 56.7 | 41.3 | 41.7 | 59.8 | 54.7 | 52.9 | 25.0 | 29.8 | 29.5 | 50.5 | 43.7 | 52.3 |
| 1986 | 43.0 | 48.1 | 29.3 | 16.4 | 33.7 | 19.9 | 46.4 | 28.5 | 32.0 | 29.1 | 11.9 | 32.1 |
| 1987 | 25.8 | 29.7 | 18.5 | 28.9 | 38.0 | 26.8 | 28.6 | W | 72.2 | 55.0 | 57.5 | 62.3 |
| 1988 | 60.6 | 56.1 | 53.5 | 33.1 | 42.9 | 56.4 | 56.1 | 57.8 | 75.0 | 137.9 | 96.9 | 83.2 |
| 1989 | 85.6 | 82.4 | 65.2 | W | W | 15.2 | 35.7 | 38.7 | 61.7 | W | W | 80.7 |
| 1990 | 12.6 | W | W | 5.6 | 14.9 | 12.1 | W | 8.5 | W | W | W | W |
| 1991 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1992 | W | W | 7.7 | W | 9.3 | 8.2 | W | W | W | 21.3 | W | W |
| 1993 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 1994 | 9.6 | W | W | W | W | W | W | W | W | W | W | W |
| 1995 | 16.7 | W | 14.1 | 8.7 | W | W | W | W | W | W | W | W |
| 1996 | W | W | 10.3 | W | 8.1 | W | W | W | 11.7 | 8.7 | W | W |
| 1997 | W | W | W | 9.9 | 12.5 | W | W | W | W | 14.7 | W | W |
| 1998 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1999 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2000 | W | W | W | W | W | W | W | W | W | W | W | - |
| 2001 | W | W | W | W | W | W | W | W | 1.9 | W | W | W |
| 2002 | NA | NA | W | W | 11.5 | NA | W | W | W | W | W | W |
| 2003 | W | W | - | W | W | W | W | W | W | W | W | W |
| 2004 | - | W | W | W | W | - | W | W | - | - | W | - |
| 2005 | W | NA | W | W | W | W | W | W | W | - | - | - |
| 2006 | - | - | - | - | - | - | - | - | - | - | - | W |
| 2007 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2008 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2009 | W | W | W | W | - | W | W | W | - | - | W | W |
| 2010 | W | - | - | - | - | - | W | W | - | - | - | - |
| 2011 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2012 | - | - | - | - | - | - | - | - | - | - | - | - |
| 2013 | - | - | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 5/1/2013 |
| Next Release Date: 6/3/2013 |