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 View History:  Annual  
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U.S. Average Depth of Crude Oil Exploratory Wells Drilled (Feet per Well)
U.S. Average Depth of Crude Oil Exploratory Wells Drilled (Feet per Well)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  1940's 4,232
  1950's 4,335 4,609 4,781 4,761 4,740 4,819 4,901 5,036 4,993 5,021
  1960's 5,170 5,099 5,124 4,878 5,509 5,672 5,700 5,758 5,914 6,054
  1970's 6,247 5,745 5,880 6,243 5,855 5,913 6,010 5,902 6,067 6,011
  1980's 5,727 5,853 5,504 5,141 5,565 5,865 6,069 6,104 6,182 6,028
  1990's 6,657 6,431 6,498 6,356 6,404 6,559 7,288 7,940 8,220 6,929
  2000's 7,285 7,342 6,818 7,103 8,432 6,006 NA

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 10/8/2009
Next Release Date: 11/6/2009

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