Table 7.  Energy Consumption Estimates by Source, Selected Years, 1960-2006, Maryland
Year	Coal a	Natural Gas b		Petroleum															Nuclear Electric Power		Hydro- electric Power f	Bio- mass a,g		Other a,h		Net Inter- state Flow of Electric- ity/Losses i		Total j
				Asphalt & Road Oil a		Aviation Gasoline a	Distillate Fuel Oil a	Jet Fuel a	Kero- sene a		LPG a,c	Lubri- cants a	Motor Gasoline d	Residual Fuel Oil a	Other a,e		Total
	Thousand Short Tons	Billion Cubic Feet		Thousand Barrels															Million kWh
1960	8,528	71		1,813		279	12,870	2,457	2,445		1,051	565	22,552	16,835	978		61,844		0		1,358	– –		– –		– –		– –
1961	8,665	74		2,369		268	14,235	2,905	2,870		1,078	550	23,048	12,980	994		61,298		0		1,139	– –		– –		– –		– –
1962	9,501	82		2,421		451	15,116	3,343	2,867		1,258	645	24,489	13,567	1,018		65,176		0		1,148	– –		– –		– –		– –
1963	10,373	86		2,676		559	15,889	2,554	2,564		1,469	645	25,753	13,181	1,309		66,598		0		971	– –		– –		– –		– –
1964	11,321	92		2,802		505	16,807	2,710	2,435		1,469	677	26,386	14,211	1,686		69,687		0		1,112	– –		– –		– –		– –
1965	12,372	99		3,289		474	16,967	2,856	2,371		1,473	627	27,510	15,510	1,697		72,774		0		1,141	– –		– –		– –		– –
1966	12,869	100		2,944		485	17,579	3,241	2,472		1,640	651	29,305	16,603	2,117		77,036		0		1,322	– –		– –		– –		– –
1967	13,347	118		2,975		464	17,500	3,966	2,362		1,417	526	30,555	12,313	2,114		74,192		0		1,923	– –		– –		– –		– –
1968	13,846	127		2,705		473	18,655	4,741	2,612		1,599	578	32,741	12,694	2,319		79,117		0		1,609	– –		– –		– –		– –
1969	13,609	144		2,565		362	18,520	4,632	2,419		1,699	613	34,787	15,605	2,389		83,590		0		1,359	– –		– –		– –		– –
1970	12,216	156		2,798		309	19,817	4,477	2,331		1,841	624	37,159	22,046	2,895		94,297		0		1,907	– –		– –		– –		– –
1971	10,765	161		2,955		291	20,003	4,104	2,575		1,923	612	38,914	29,863	1,713		102,955		0		1,773	– –		– –		– –		– –
1972	8,821	176		3,090		266	21,350	3,845	1,804		2,279	655	41,424	36,955	1,868		113,536		0		2,282	– –		– –		– –		– –
1973	9,974	174		3,844		259	22,919	3,658	1,084		2,506	618	42,872	41,442	1,701		120,903		0		2,165	– –		– –		– –		– –
1974	8,795	172		3,796		270	22,469	3,247	1,185		2,360	592	42,375	39,025	1,633		116,952		0		1,969	– –		– –		– –		– –
1975	7,761	140		3,246		205	21,034	3,049	1,193		2,395	763	43,688	26,941	2,166		104,680		4,386		2,311	– –		– –		– –		– –
1976	9,607	148		3,385		200	20,205	3,125	1,022		2,738	847	45,544	27,570	2,666		107,304		6,420		2,088	– –		– –		– –		– –
1977	7,510	133		3,479		204	21,670	3,401	990		2,801	724	46,934	26,375	2,764		109,341		10,881		2,018	– –		– –		– –		– –
1978	8,323	136		3,895		178	21,216	3,295	883		2,549	777	47,874	27,451	2,751		110,870		9,896		1,735	– –		– –		– –		– –
1979	9,500	172		3,520		145	23,768	3,237	1,472		2,050	813	44,482	24,027	2,650		106,164		9,674		2,191	– –		– –		– –		– –
1980	9,312	160		2,638		173	21,908	3,522	1,168		2,060	724	44,003	16,480	2,504		95,181		10,947		1,270	– –		– –		– –		– –
1981	8,376	175		3,014		128	18,609	3,537	879		2,015	695	44,412	13,134	2,717		89,140		11,523		1,426	– –		– –		– –		– –
1982	8,597	158		3,123		74	16,314	3,573	805		2,039	633	44,193	11,966	2,277		84,997		10,345		1,341	– –		– –		– –		– –
1983	9,083	146		4,312		72	18,472	3,797	658		2,050	663	44,252	10,937	2,163		87,377		11,676		1,765	– –		– –		– –		– –
1984	10,595	159		5,016		67	20,049	3,658	1,335	[R ]	2,405	707	45,428	11,479	2,811		92,030		11,651		2,022	– –		– –		– –		– –
1985	10,012	151		4,520		76	18,958	3,901	1,247		1,805	659	45,632	7,916	2,640		87,354		9,926		1,524	– –		– –		– –		– –
1986	10,750	153		5,211		101	18,310	3,889	936		1,428	644	46,914	7,282	3,552		88,268		12,828		1,876	– –		– –		– –		– –
1987	11,311	169		4,823		87	19,525	3,771	1,209		1,741	729	48,215	9,077	4,432		93,608		10,070		1,612	– –		– –		– –		– –
1988	11,757	173		4,350		94	19,985	4,481	1,526		1,695	703	49,125	10,417	4,288		96,663		11,734		1,328	– –		– –		– –		– –
1989	11,541	193		4,500		83	21,381	4,384	1,006		2,135	721	49,629	15,711	3,406		102,955		2,719		1,778	– –		– –		– –		– –
1990	11,193	176		5,008		74	18,327	3,637	466		1,965	742	47,415	10,542	3,599		91,775		1,251		2,299	– –		– –		– –		– –
1991	10,709	178		3,703		75	18,646	3,293	476		2,018	663	48,448	9,786	3,435		90,544		9,036		1,407	– –		– –		– –		– –
1992	9,713	185		3,509		96	19,694	3,061	378		2,635	676	49,044	8,224	4,075		91,392		10,664		1,825	– –		– –		– –		– –
1993	10,268	182		4,684		102	20,157	3,000	621		2,479	689	49,602	10,402	3,641	[R ]	95,377	[R ]	12,301		1,658	– –		– –		– –		– –
1994	10,491	186		4,363		71	20,387	3,229	672		2,835	720	50,699	9,479	3,883	[R ]	96,337	[R ]	11,235		2,010	– –		– –		– –		– –
1995	11,198	194		4,236		48	19,176	3,430	801		2,687	708	51,475	4,065	3,654	[R ]	90,280	[R ]	12,938		1,442	– –		– –		– –		– –
1996	11,366	196		3,610		35	21,670	3,897	802		2,995	687	51,800	4,517	3,975	[R ]	93,988	[R ]	12,093		2,457	– –		– –		– –		– –
1997	11,239	212		5,619		43	19,586	4,096	865		2,856	725	53,594	4,212	3,722	[R ]	95,318	[R ]	13,213		1,588	– –		– –		– –		– –
1998	11,790	189		4,679		56	20,657	3,920	1,146		2,410	759	54,585	7,572	5,013	[R ]	100,799	[R ]	13,331		1,740	– –		– –		– –		– –
1999	11,824	196		4,375		39	21,741	3,938	814		2,143	767	56,886	9,084	5,523	[R ]	105,310	[R ]	13,312		1,424	– –		– –		– –		– –
2000	12,221	212		4,701		40	22,387	4,108	898		2,406	756	57,157	5,154	4,476	[R ]	102,083	[R ]	13,827		1,733	– –		– –		– –		– –
2001	12,519	178		4,315		105	23,134	2,929	891		2,544	692	59,263	5,776	4,283	[R ]	103,931	[R ]	13,656		1,184	– –		– –		– –		– –
2002	12,571	196		4,561		100	21,479	1,718	521		2,367	684	60,445	4,571	4,289	[R ]	100,735	[R ]	12,128		1,661	– –		– –		– –		– –
2003	13,039	197		3,455		88	21,827	2,343	626		3,498	633	61,908	6,299	3,989	[R ]	104,665	[R ]	13,691		2,647	– –		– –		– –		– –
2004	13,006	195		3,165		82	22,830	3,140	714		2,872	641	63,614	6,567	5,170	[R ]	108,796	[R ]	14,580		2,508	– –		– –		– –		– –
2005	13,091	203		2,979	[R ]	123	23,649	4,362	815		3,188	638	64,553	7,432	4,771	[R ]	112,510	[R ]	14,703		1,704	– –		– –		– –		– –
2006	12,939	182		2,950		108	22,607	4,144	530		3,111	621	65,673	2,622	987		103,353		13,830		2,104	– –		– –		– –		– –
Trillion Btu
1960	226.6	73.3		12.0		1.4	75.0	13.5	13.9		4.2	3.4	118.5	105.8	5.7		353.4		0.0		14.6	23.8		0.0		5.8		697.5
1961	230.2	76.5		15.7		1.4	82.9	16.0	16.3		4.3	3.3	121.1	81.6	5.8		348.4		0.0		12.1	23.6		0.0		9.3		700.1
1962	252.3	84.8		16.1		2.3	88.1	18.4	16.3		5.0	3.9	128.6	85.3	5.9		369.9		0.0		12.1	23.9		0.0		5.6		748.6
1963	275.3	89.0		17.8		2.8	92.6	14.0	14.5		5.9	3.9	135.3	82.9	7.5		377.1		0.0		10.2	25.3		0.0		1.5		778.4
1964	300.6	94.3		18.6		2.5	97.9	14.8	13.8		5.9	4.1	138.6	89.3	9.4		395.0		0.0		11.6	25.8		0.0		-0.1		827.2
1965	327.4	101.0		21.8		2.4	98.8	15.7	13.4		5.9	3.8	144.5	97.5	9.4		413.4		0.0		11.9	27.1		0.0		-17.7		863.1
1966	339.0	102.8		19.5		2.4	102.4	17.9	14.0		6.6	3.9	153.9	104.4	11.7		436.8		0.0		13.8	28.3		0.0		-16.2		904.6
1967	350.7	121.3		19.7		2.3	101.9	22.0	13.4		5.4	3.2	160.5	77.4	11.7		417.6		0.0		20.1	29.4		0.0		-18.9		920.2
1968	362.8	129.7		17.9		2.4	108.7	26.3	14.8		6.1	3.5	172.0	79.8	12.8		444.3		0.0		16.7	31.0		0.0		-10.3		974.3
1969	355.4	147.7		17.0		1.8	107.9	25.8	13.7		6.5	3.7	182.7	98.1	13.1		470.4		0.0		14.2	31.3		0.0		10.3		1,029.3
1970	311.3	159.6		18.6		1.6	115.4	25.0	13.2		7.0	3.8	195.2	138.6	16.2		534.4		0.0		20.0	31.8		0.0		16.5		1,073.6
1971	274.0	164.7		19.6		1.5	116.5	22.8	14.6		7.3	3.7	204.4	187.7	9.7		587.9		0.0		18.6	30.7		0.0		28.9		1,104.6
1972	226.4	180.3		20.5		1.3	124.4	21.4	10.2		8.6	4.0	217.6	232.3	10.6		650.9		0.0		23.7	32.4		0.0		9.3		1,123.0
1973	256.8	177.6		25.5		1.3	133.5	20.4	6.1		9.4	3.7	225.2	260.5	9.5		695.3		0.0		22.5	32.6		0.0		30.2		1,215.0
1974	217.5	175.5		25.2		1.4	130.9	18.0	6.7		8.8	3.6	222.6	245.4	9.1		671.7		0.0		20.6	31.8		0.0		6.4		1,123.5
1975	197.2	141.9		21.5		1.0	122.5	16.9	6.8		8.9	4.6	229.5	169.4	12.4		593.6		48.3		24.0	31.8		0.0		33.2		1,069.9
1976	245.3	149.6		22.5		1.0	117.7	17.4	5.8		10.2	5.1	239.2	173.3	15.1		607.3		70.9		21.7	34.7		0.0		19.2		1,148.8
1977	189.7	135.2		23.1		1.0	126.2	18.9	5.6		10.3	4.4	246.5	165.8	15.7		617.7		117.2		21.1	38.5		0.0		11.1		1,130.5
1978	209.7	139.6		25.8		0.9	123.6	18.4	5.0		9.4	4.7	251.5	172.6	15.5		627.4		108.3		18.0	41.3		0.0		10.9		1,155.2
1979	240.7	179.6		23.4		0.7	138.5	18.0	8.3		7.5	4.9	233.7	151.1	14.9		601.0		105.2		22.7	43.6		0.0		27.2		1,220.1
1980	235.7	163.0	[R ]	17.5		0.9	127.6	19.5	6.6		7.6	4.4	231.1	103.6	14.1		533.0		119.4		13.2	32.6		0.0		60.6	[R ]	1,157.5	[R ]
1981	210.4	177.2	[R ]	20.0		0.6	108.4	19.7	5.0		7.3	4.2	233.3	82.6	15.4		496.6		127.1		14.9	30.5		0.0		85.2	[R ]	1,141.9	[R ]
1982	217.3	159.8	[R ]	20.7		0.4	95.0	19.9	4.6		7.4	3.8	232.1	75.2	12.9		472.0		114.6		14.0	37.6		0.0		87.7	[R ]	1,103.0	[R ]
1983	232.6	148.3	[R ]	28.6		0.4	107.6	21.1	3.7		7.4	4.0	232.5	68.8	12.1		486.1		127.3		18.6	33.5		0.0		74.9	[R ]	1,121.4	[R ]
1984	270.2	162.8	[R ]	33.3		0.3	116.8	20.3	7.6	[R ]	8.7	4.3	238.6	72.2	15.7		512.5		126.3		21.1	39.0		0.0		56.6		1,188.4	[R ]
1985	256.2	155.6	[R ]	30.0		0.4	110.4	21.7	7.1		6.5	4.0	239.7	49.8	14.9		484.4		105.4		15.9	39.2		0.0		104.8		1,161.6	[R ]
1986	275.0	157.9	[R ]	34.6		0.5	106.7	21.6	5.3		5.2	3.9	246.4	45.8	19.9		490.0		135.7		19.6	35.0		0.0		75.2	[R ]	1,188.4	[R ]
1987	288.9	174.1	[R ]	32.0		0.4	113.7	21.0	6.9		6.4	4.4	253.3	57.1	25.1		520.2		105.1		16.8	31.0		0.0		119.1		1,255.2	[R ]
1988	301.2	177.7	[R ]	28.9		0.5	116.4	25.0	8.7		6.2	4.3	258.1	65.5	24.4		537.8		124.4		13.7	32.5		0.0		107.1		1,294.4	[R ]
1989	295.8	198.7	[R ]	29.9		0.4	124.5	24.5	5.7		7.9	4.4	260.7	98.8	19.1		575.8		28.8		18.5	36.8	[k ]	0.1	[k ]	172.8	[R ]	1,327.3	[k R ]
1990	286.5	180.6		33.2		0.4	106.8	20.3	2.6		7.1	4.5	249.1	66.3	20.2		510.5		13.2		23.9	26.5		0.1		218.6	[R ]	1,260.0	[R ]
1991	274.8	183.0		24.6		0.4	108.6	18.4	2.7		7.3	4.0	254.5	61.5	19.2		501.2		94.7		14.7	26.9		0.1		164.2	[R ]	1,259.6	[R ]
1992	247.5	190.0	[R ]	23.3		0.5	114.7	17.1	2.1		9.6	4.1	257.6	51.7	22.9		503.6		111.7		18.9	27.7		0.1		152.5	[R ]	1,252.0	[R ]
1993	261.7	186.6	[R ]	31.1		0.5	117.4	16.8	3.5		8.9	4.2	260.6	65.4	20.3	[R ]	528.7	[R ]	129.2		17.1	32.0		0.1		144.3	[R ]	1,299.7	[R ]
1994	268.9	191.0	[R ]	28.9		0.4	118.8	18.2	3.8		10.3	4.4	265.2	59.6	21.8	[R ]	531.3	[R ]	117.4		20.7	32.1		0.1		146.5	[R ]	1,308.2	[R ]
1995	289.6	198.6	[R ]	28.1		0.2	111.7	19.4	4.5		9.7	4.3	268.4	25.6	20.5	[R ]	492.6	[R ]	135.9		14.9	36.8		0.1		165.1	[R ]	1,333.6	[R ]
1996	292.5	200.8	[R ]	24.0		0.2	126.2	22.1	4.5		10.8	4.2	270.2	28.4	22.2	[R ]	512.8	[R ]	127.0		25.4	40.5		0.1		169.2		1,368.2	[R ]
1997	289.7	219.0	[R ]	37.3		0.2	114.1	23.2	4.9		10.3	4.4	279.4	26.5	20.6	[R ]	520.9	[R ]	138.7		16.2	36.5		0.2		155.1	[R ]	1,376.3	[R ]
1998	303.9	195.5		31.1		0.3	120.3	22.2	6.5		8.7	4.6	284.5	47.6	28.2	[R ]	554.1	[R ]	139.9		17.7	34.6		0.2		129.3	[R ]	1,375.0	[R ]
1999	305.2	202.5	[R ]	29.0		0.2	126.6	22.3	4.6		7.7	4.7	296.4	57.1	31.1	[R ]	579.8	[R ]	139.1		14.6	36.2		0.2		138.6		1,416.1	[R ]
2000	312.2	219.0	[R ]	31.2		0.2	130.4	23.3	5.1		8.7	4.6	297.8	32.4	25.0	[R ]	558.6	[R ]	144.2		17.7	36.3		0.2		157.1		1,445.2	[R ]
2001	318.9	184.8	[R ]	28.6		0.5	134.8	16.6	5.1		9.2	4.2	308.8	36.3	25.1	[R ]	569.1	[R ]	142.7		12.2	20.8	[R ]	0.3		181.0	[R ]	1,429.7	[R ]
2002	325.8	201.7	[R ]	30.3		0.5	125.1	9.7	3.0		8.6	4.2	314.8	28.7	24.9	[R ]	549.8	[R ]	126.6		16.9	21.0	[R ]	0.2		262.1	[R ]	1,504.1	[R ]
2003	329.6	202.8	[R ]	22.9		0.4	127.1	13.3	3.5		12.7	3.8	322.4	39.6	23.3	[R ]	569.1	[R ]	142.7		27.1	27.1	[R ]	0.2		255.4	[R ]	1,554.0	[R ]
2004	327.2	200.4	[R ]	21.0		0.4	133.0	17.8	4.0		10.4	3.9	331.7	41.3	30.5	[R ]	594.1	[R ]	152.0		25.1	28.0	[R ]	0.3		209.9	[R ]	1,537.2	[R ]
2005	329.3	211.8	[R ]	19.8	[R ]	0.6	137.8	24.7	4.6		11.5	3.9	336.8	46.7	28.1	[R ]	614.6	[R ]	153.4	[R ]	17.0	29.0	[R ]	0.3		208.3	[R ]	1,563.7	[R ]
2006	324.7	188.6		19.6		0.5	131.7	23.5	3.0		11.2	3.8	342.7	16.5	5.3		557.7		144.3		20.9	29.4		0.4		186.5		1,452.4
aThe continuity of these data series estimates may be affected by changing data sources and estimation methodologies.  See the Technical Notes for each type of energy. iNet interstate flow of electricity is the difference between the amount of energy in the electricity sold within a State (including associated losses) and the energy input at the electric utilities within the State.  A positive number indicates that more electricity (including associated losses) came into the State than went out of the State during the year; conversely, a negative number indicates that more electricity (including associated losses) went out of the State than came into the State. bPhysical unit data include supplemental gaseous fuels (SGF) for all years; Btu data exclude SGF for 1980 forward. jFrom 1981 through 1992, includes fuel ethanol blended into motor gasoline but not shown in the motor gasoline column. cLiquefied petroleum gases. kThere is a discontinuity in this time series between 1988 and 1989 due to the expanded coverage of renewable energy sources beginning in 1989. dBeginning in 1993, includes fuel ethanol blended into motor gasoline. kWh = Kilowatthours.  – – = Not applicable. e"Other" is the subtotal of 16 petroleum products consumed in the industrial sector.  See a full description in the Technical Notes, Section 4, "Other Petroleum Products." Where shown, R = Revised data and (s) = Physical unit value less than +0.5 and greater than -0.5 or Btu value less than +0.05 and greater than -0.05. fConventional hydroelectric power.  Includes pumped-storage hydroelectricity, which cannot be separately identified, from 1960 through 1989. Note:  Totals may not equal sum of components due to independent rounding. gWood and waste.  Prior to 2001, includes non-biomass waste. Sources:  Data sources, estimation procedures, and assumptions are described in the Technical Notes. h"Other" is geothermal, wind, photovoltaic, solar thermal energy, and net imports of electricity.