EIA Home
Home  >  Petroleum  >  Navigator
Petroleum Navigator
  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:    Monthly     Annual   
West Coast (PADD 5) Isobutane-Isobutylene Imports (Thousand Barrels per Day)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1984 5 6 5 4 5 5 3 6 4 4 4 5
  1985 7 3 8 3 3 1 6 1 1 2 2 7
  1986 4 4 8 2 2 2 2 4 4 4 12 8
  1987 6 6 3 4 3 2 1 1 2 3 3 10
  1988 3 3 3 2 3 2 1 2 3 4 7 4
  1989 3 1 1 1 2 2 2 1 2 1 1 4
  1990 1 1 1 2 1 0 1 1 2 0 1 0
  1991 0 1 2 1 1 1 0 0 0 0 0 1
  1992 1 0 0 0 1 1 1 0 1 0 0 0
  1993 0 0 0 1 0 0 0 0 0 0 0
  1994 0 1 1 2 4 4
  1995 13 2 2 1 1 0 1 0 0 5 6
  1996 5 4 2 1 1 1 0 0
  1997 2 0
  2000 1
  2001 1 0
  2004 1 0 0 0 0
  2005 0
  2006 1 0
  2007 0 0 0 0

Updated on 6/26/2008
Source: U.S. Energy Information Administration
 ·  ·  ·  ·