Table A3.  Approximate Heat Content of Petroleum Consumption and Biofuels Production, 1949-2006                      (Million Btu per Barrel)
Year	Total Petroleum 1 Consumption by Sector						Liquefied Petroleum Gases Consumption	Motor Gasoline Consumption	Fuel Ethanol	Ethanol Feed- stock 4	Biodiesel	Biodiesel Feed- stock 5
	Residential	Commercial	Industrial	Transportation	Electric Power 2,3	Total
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	6 3.838	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	2 6.240	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	5.196	5.436	6.230	5.379	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	7 5.230	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	8 4.996	8 5.208
2002	4.742	5.364	5.116	5.410	6.173	5.324	3.613	5.208	3.539	6.146	8 4.996	8 5.208
2003	R 4.763	R 5.407	R 5.161	R 5.408	6.182	5.340	3.629	5.207	3.539	6.141	8 4.996	8 5.208
2004	R 4.807	R 5.434	5.164	5.420	6.192	5.350	3.618	5.215	3.539	6.135	8 4.996	8 5.208
2005	RE 4.800	RE 5.435	RE 5.194	RE 5.427	R 6.188	R 5.365	3.620	5.218	3.539	6.130	8 4.996	8 5.208
2006	E 4.787	E 5.429	E 5.192	E 5.426	P 6.141	P 5.352	P 3.604	P 5.218	3.539	6.125	NA	NA
1Petroleum products supplied, including natural gas plant liquids and crude oil burned directly as fuel. 7There is a discontinuity in this time series between 1993 and 1994; beginning in 1994, the single constant factor is replaced by a factor that is a quantity-weighted average of motor gasoline's major components.  See Table A1. 2Electricity-only and combined-heat-and-power (CHP) plants within the NAICS (North American Industry Classification System) 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. 8Net heat content (lower heating value). 3Electric 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.   4Corn input to the production of fuel ethanol (million Btu corn per denatured barrel ethanol), used as the approximate heat content for total biomass inputs to the production of fuel ethanol. Note:  Weighted averages of the products included in each category are calculated by using heat content values shown in Table A1. 5Soybean 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. Sources:  See "Thermal Conversion Factor Source Documentation," which follows Table A6. 6There is a discontinuity in this time series between 1966 and 1967; beginning in 1967, the single constant factor is replaced by a quantity-weighted average of liquefied petroleum gases' major components.