Table A3.  Approximate Heat Content of Petroleum Consumption and Biofuels Production, 1949-2007                      (Million Btu per Barrel)
Year	Total Petroleum 1 Consumption by Sector												Liquefied Petroleum Gases Consumption 5		Motor Gasoline Consumption 6		Fuel Ethanol	Fuel Ethanol Feed- stock 7	Biodiesel		Biodiesel Feed- stock 8
	Residential		Commercial 2		Industrial 2		Transportation 2		Electric Power 3,4		Total 2
1949	5.493		5.858		5.946		5.465		6.254		5.649		4.011		5.253		NA	NA	NA		NA
1950	5.482		5.865		5.940		5.461		6.254		5.649		4.011		5.253		NA	NA	NA		NA
1951	5.492		5.856		5.912		5.458		6.254		5.634		4.011		5.253		NA	NA	NA		NA
1952	5.488		5.849		5.907		5.442		6.254		5.621		4.011		5.253		NA	NA	NA		NA
1953	5.465		5.845		5.895		5.426		6.254		5.608		4.011		5.253		NA	NA	NA		NA
1954	5.475		5.832		5.883		5.412		6.254		5.595		4.011		5.253		NA	NA	NA		NA
1955	5.480		5.832		5.867		5.408		6.254		5.591		4.011		5.253		NA	NA	NA		NA
1956	5.474		5.828		5.855		5.406		6.254		5.585		4.011		5.253		NA	NA	NA		NA
1957	5.462		5.813		5.840		5.405		6.254		5.577		4.011		5.253		NA	NA	NA		NA
1958	5.465		5.802		5.831		5.393		6.254		5.567		4.011		5.253		NA	NA	NA		NA
1959	5.408		5.803		5.810		5.389		6.254		5.557		4.011		5.253		NA	NA	NA		NA
1960	5.430		5.849		5.800		5.388		6.267		5.555		4.011		5.253		NA	NA	NA		NA
1961	5.432		5.847		5.796		5.386		6.268		5.552		4.011		5.253		NA	NA	NA		NA
1962	5.418		5.835		5.784		5.386		6.267		5.545		4.011		5.253		NA	NA	NA		NA
1963	5.396		5.818		5.759		5.384		6.266		5.534		4.011		5.253		NA	NA	NA		NA
1964	5.375		5.811		5.730		5.388		6.267		5.528		4.011		5.253		NA	NA	NA		NA
1965	5.380		5.837		5.728		5.387		6.267		5.532		4.011		5.253		NA	NA	NA		NA
1966	5.354		5.839		5.723		5.388		6.266		5.532		4.011		5.253		NA	NA	NA		NA
1967	5.291		5.818		5.683		5.391		6.266		5.515		3.838	[5]	5.253		NA	NA	NA		NA
1968	5.272		5.797		5.647		5.394		6.263		5.504		3.818		5.253		NA	NA	NA		NA
1969	5.213		5.769		5.602		5.394		6.259		5.492		3.805		5.253		NA	NA	NA		NA
1970	5.216		5.773		5.603		5.393		6.252		5.503		3.779		5.253		NA	NA	NA		NA
1971	5.212		5.758		5.598		5.389		6.245		5.504		3.772		5.253		NA	NA	NA		NA
1972	5.193		5.733		5.563		5.388		6.233		5.500		3.760		5.253		NA	NA	NA		NA
1973	5.205		5.749		5.569		5.395		6.245		5.515		3.746		5.253		NA	NA	NA		NA
1974	5.196		5.740		5.538		5.394		6.238		5.504		3.730		5.253		NA	NA	NA		NA
1975	5.192		5.704		5.527		5.392		6.250		5.494		3.715		5.253		NA	NA	NA		NA
1976	5.215		5.726		5.536		5.395		6.251		5.504		3.711		5.253		NA	NA	NA		NA
1977	5.213		5.733		5.554		5.400		6.249		5.518		3.677		5.253		NA	NA	NA		NA
1978	5.213		5.716		5.554		5.404		6.251		5.519		3.669		5.253		NA	NA	NA		NA
1979	5.298		5.769		5.419		5.428		6.258		5.494		3.680		5.253		NA	NA	NA		NA
1980	5.245		5.803		5.374		5.440		6.254		5.479		3.674		5.253		NA	NA	NA		NA
1981	5.191		5.751		5.312		5.432		6.258		5.448		3.643		5.253		3.539	6.486	NA		NA
1982	5.167		5.751		5.263		5.422		6.258		5.415		3.615		5.253		3.539	6.428	NA		NA
1983	5.022		5.642		5.275		5.415		6.255		5.406		3.614		5.253		3.539	6.388	NA		NA
1984	5.184		5.705		5.223		5.418		6.251		5.395		3.599		5.253		3.539	6.356	NA		NA
1985	5.153		5.661		5.215		5.422		6.247		5.387		3.603		5.253		3.539	6.331	NA		NA
1986	5.169		5.694		5.283		5.425		6.257		5.418		3.640		5.253		3.539	6.310	NA		NA
1987	5.144		5.661		5.248		5.429		6.249		5.403		3.659		5.253		3.539	6.291	NA		NA
1988	5.165		5.661		5.241		5.433		6.250		5.410		3.652		5.253		3.539	6.275	NA		NA
1989	5.105		5.621		5.234		5.437		6.240	[3]	5.410		3.683		5.253		3.539	6.260	NA		NA
1990	5.027		5.621		5.270		5.442		6.244		5.411		3.625		5.253		3.539	6.247	NA		NA
1991	4.968		5.599		5.186		5.440		6.246		5.384		3.614		5.253		3.539	6.235	NA		NA
1992	5.004		5.589		5.185		5.442		6.238		5.378		3.624		5.253		3.539	6.224	NA		NA
1993	4.975		5.580	[2]	5.196	[2]	5.436	[2]	6.230		5.379	[2]	3.606		5.253		3.539	6.214	NA		NA
1994	4.983		5.592		5.166		5.424		6.213		5.361		3.635		5.230	[6]	3.539	6.204	NA		NA
1995	4.940		5.554		5.137		5.417		6.188		5.341		3.623		5.215		3.539	6.196	NA		NA
1996	4.869		5.498		5.133		5.420		6.195		5.336		3.613		5.216		3.539	6.187	NA		NA
1997	4.859		5.459		5.138		5.416		6.199		5.336		3.616		5.213		3.539	6.180	NA		NA
1998	4.837		5.446		5.155		5.413		6.210		5.349		3.614		5.212		3.539	6.172	NA		NA
1999	4.761		5.369		5.113		5.413		6.205		5.328		3.616		5.211		3.539	6.165	NA		NA
2000	4.761		5.394		5.082		5.421		6.189		5.326		3.607		5.210		3.539	6.159	NA		NA
2001	4.796		5.403		5.164		5.412		6.199		5.345		3.614		5.210		3.539	6.152	5.359	[9,R]	5.433	[9,R]
2002	4.742		5.364		5.116		5.410		6.173		5.324		3.613		5.208		3.539	6.146	5.359	[9,R]	5.433	[9,R]
2003	4.763		5.407		5.161		5.408		6.182		5.340		3.629		5.207		3.539	6.141	5.359	[9,R]	5.433	[9,R]
2004	4.807		5.434		5.164		5.420		6.192		5.350		3.618		5.215		3.539	6.135	5.359	[9,R]	5.433	[9,R]
2005	4.783	[R]	5.427	[R]	5.200	[R]	5.426	[R]	6.188		5.365		3.620		5.218		3.539	6.130	5.359	[9,R]	5.433	[9,R]
2006	4.667	[RE]	5.343	[RE]	5.197	[RE]	5.430	[RE]	6.143	[R]	5.353	[R]	3.605	[R]	5.218		3.539	6.125	5.359	[9,R]	5.433	[9,R]
2007	4.640	[E]	5.340	[E]	5.167	[E]	5.432	[E]	6.150	[P]	5.347	[P]	3.592	[P]	5.219	[P]	3.539	5.987	5.359	[9,R]	5.433	[9,R]
1Petroleum products supplied, including natural gas plant liquids and crude oil burned directly as fuel.  Quantity-weighted averages of the petroleum products included in each category are calculated by using heat content values shown in Table A1. 7Corn input to the production of fuel ethanol (million Btu corn per barrel denatured ethanol), used as the approximate heat content for total biomass inputs to the production of fuel ethanol. 2Beginning in 1993, includes ethanol blended into motor gasoline. 8Soybean oil input to the production of biodiesel (million Btu soybean oil per barrel biodiesel), used as the approximate heat content for total biomass inputs to the production of biodiesel. 3Electricity-only and combined-heat-and-power (CHP) plants within the NAICS 22 category whose primary business is to sell electricity, or electricity and heat, to the public.  Through 1988, data are for electric utilities only; beginning in 1989, data are for electric utilities and independent power producers. 9Gross heat content (higher heating value). 4Electric power sector factors are weighted average heat contents for distillate fuel oil, petroleum coke, and residual fuel oil; they exclude other liquids. R=Revised.  P=Preliminary.  E=Estimate.  NA=Not available.   5There is a discontinuity in this time series between 1966 and 1967; beginning in 1967, the single constant factor is replaced by a quantity-weighted factor—quantity-weighted averages of the major components of liquefied petroleum gases are calculated by using heat content values shown in Table A1. Note:  The values in this table are for gross heat contents.  See "Heat Content" in Glossary.  6There is a discontinuity in this time series between 1993 and 1994; beginning in 1994, the single constant factor is replaced by a quantity-weighted factor—quantity-weighted averages of the major components of motor gasoline, including fuel ethanol, are calculated by using heat content values shown in Table A1. Sources:  See "Thermal Conversion Factor Source Documentation," which follows Table A6.