U.S. Refinery and Blender Net Inputs of Isobutane/Isobutylene (Thousand Barrels)



Energy Glossary

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Monthly

Annual

U.S. Refinery and Blender Net Inputs of Isobutane/Isobutylene (Thousand Barrels)

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1981	2,940	3,127	3,676	3,294	3,869	3,772	3,606	3,940	3,789	3,681	3,503	3,267
1982	4,007	2,696	4,060	3,634	3,120	3,491	3,052	3,118	2,863	2,898	3,119	4,205
1983	4,206	2,708	2,738	2,242	2,530	1,275	2,887	3,489	3,113	2,248	3,607	3,877
1984	3,570	3,460	3,661	3,340	3,692	3,499	3,823	3,741	3,779	3,724	3,608	3,354

1985	3,433	3,334	3,650	3,833	4,123	4,482	4,587	4,587	4,475	4,311	4,055	3,894
1986	3,852	3,234	3,398	3,661	4,352	4,010	3,700	4,356	4,286	4,311	4,150	4,448
1987	4,388	3,413	3,726	4,129	4,176	4,214	4,610	4,618	4,032	3,894	3,742	3,912
1988	3,964	4,096	4,191	4,353	4,834	4,425	4,819	4,902	4,100	4,381	4,787	4,728
1989	4,384	3,649	4,092	4,259	4,443	5,243	4,917	5,057	4,916	4,603	4,743	4,847

1990	5,029	4,291	4,040	4,234	4,810	4,733	4,915	5,304	4,812	4,723	4,877	4,707
1991	4,090	3,853	4,441	4,878	5,151	5,001	5,396	5,234	4,629	4,618	4,457	4,847
1992	4,293	4,406	5,056	4,857	5,449	5,550	5,674	5,108	4,692	4,715	4,521	5,209
1993	4,679	4,380	4,997	4,923	5,367	5,299	5,537	5,767	5,089	5,297	5,243	5,302
1994	4,973	4,272	4,134	4,589	5,353	5,258	5,261	4,853	4,107	4,310	4,362	4,845

1995	4,162	3,435	4,477	4,370	4,458	4,207	4,896	4,430	4,699	4,944	4,345	4,231
1996	4,792	3,854	4,199	4,493	4,221	4,169	4,184	4,092	4,079	3,543	4,044	3,635
1997	3,709	3,310	3,865	4,175	4,087	4,009	4,095	3,715	3,577	3,701	3,549	3,555
1998	3,272	3,313	3,576	3,679	3,931	3,829	3,786	3,853	3,418	3,943	3,685	3,220
1999	3,200	2,707	3,729	4,100	3,954	3,579	3,616	3,807	3,486	3,322	3,067	3,359

2000	3,219	2,792	3,415	3,104	3,410	3,347	3,559	3,524	3,784	3,293	3,148	2,719
2001	2,685	2,663	3,409	4,134	4,596	3,998	4,111	3,798	3,690	3,413	3,515	3,532
2002	3,673	3,152	3,681	3,768	3,919	3,873	4,165	4,038	3,713	3,779	3,692	3,679
2003	3,360	3,096	3,377	3,481	3,849	3,656	3,963	4,122	3,656	3,327	3,328	3,418
2004	3,651	3,518	3,641	4,265	4,637	4,263	4,467	4,435	4,231	4,220	3,852	3,602

2005	3,467	3,535	3,649	3,974	4,383	4,658	4,760	4,740	4,093	3,987	3,988	3,796
2006	4,497	3,954	4,562	5,466	6,347	6,146	6,030	6,566	5,909	5,571	5,157	6,207
2007	4,948	4,507	5,274	5,460	6,333	5,924	6,402	6,271	6,147	5,574	6,029	5,865
2008	5,664	5,230	6,173	6,123

Updated on 6/26/2008

Source: U.S. Energy Information Administration