U.S. Refinery Isomers/Isobutane Production Capacity as of January 1 (Barrels per Stream Day)



Energy Glossary

Note: These data are available in spreadsheet format by clicking the ''Download Series History'' link on the previous page (with drop-down menu bar at top).

View History:

Annual

Decade	Year-0	Year-1	Year-2	Year-3	Year-4	Year-5	Year-6	Year-7	Year-8	Year-9
1980's			67,700	67,500	70,700	73,600	51,600	59,028	67,853	69,643
1990's	67,893	70,693	74,793	89,343	90,943	98,350	NA	108,533	NA	166,695
2000's	159,946	185,188	194,203	218,623	215,958	226,348	230,714	227,128	248,159

Updated on 6/18/2008

Source: U.S. Energy Information Administration