black gold by joseph landis an offshore oil platform according to the and gas journal united states had 21 9 billion barrels of proved reserves as january 1 2005 eleventh highest in world these are concentrated overwhelmingly over 80 four december 31 2003 texas 22 total us louisiana alaska 20 california 18 note all figures include onshore plus federal state proven have declined some 17 since 1990 with largest single year decline 6 occurring 1991 production imports crude which following price collapse late 1985 early 1986 leveled off mid 1990s began falling again sharp prices 1997 1998 during produced around 7 8 million per day bbl d 5 was rest natural liquids other sharply 2
