- = No Data Reported;
-- = Not Applicable;
NA = Not Available;
W = Withheld to avoid disclosure of individual company data.
Conventional area is any area that does not require the sale of reformulated gasoline. All types of finished motor gasoline may be sold is this area. RFG area is an ozone nonattainment area designated by the Environmental Protection Agency which requires the use of reformulated gasoline. Publication of Low Sulfur On-Highway Diesel (LSD) prices at the U.S. level was discontinued on December 8, 2008 due to a diminishing number of stations selling LSD as a result of EPA diesel fuel regulations. EIA continued to collect LSD prices from retail outlets and included them in the Diesel Average All Types price until July 26, 2010, when no more outlets reported LSD sales. Beginning July 26, 2010 publication of Ultra Low Sulfur Diesel (ULSD) price became fully represented by the Diesel Average All Types price. As of December 1, 2010 (September 1, 2006 in California), any on-highway diesel fuel sold is ULSD as mandated by EPA on-highway diesel fuel regulations. EIA did not collect weekly retail motor gasoline data between December 10, 1990 and January 14, 1991. Monthly and annual averages are simple averages of the weekly data contained therein. For months and years with incomplete weekly data series, the monthly and/or annual averages are not available.
See Definitions, Sources, and Notes link above for more information on this table.