7-2 Transportation Energy Consumption by Source: 2012
Tuesday, January 14, 2014
percent of Btu consumed
Key: Btu = British thermal unit.
Note: Excludes electricity retail sales and electrical system energy losses.
Source: U.S. Department of Energy, U.S. Energy Information Administration, Monthly Energy Review, available at www.eia.gov/totalenergy/data/monthly as of September 2013.