Release: Gasoline and Diesel Fuel Update
Weighted average based on sampling of approximately 900 retail outlets, 8:00AM Monday. The price represents self-service unless only full-service is available and includes all taxes. See (http://www.eia.doe.gov/oil_gas/petroleum/data_publications/wrgp/mogas_home_page.html) for further definitions. All Formulations includes both conventional gasoline and reformulated gasoline.
U.S. Energy Information Administration, US All Grades All Formulations Gas Price [GASALLW], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/GASALLW, September 20, 2018.