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 View History:  Annual  
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U.S. Average Depth of Crude Oil Developmental Wells Drilled (Feet per Well)
U.S. Average Depth of Crude Oil Developmental 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 3,684
  1950's 3,861 4,061 4,167 3,972 3,974 3,915 3,865 3,944 3,831 3,852
  1960's 3,809 3,931 4,008 4,006 3,947 3,970 3,884 3,692 4,027 4,142
  1970's 4,269 4,049 4,231 4,242 3,675 3,821 3,756 3,901 3,883 3,827
  1980's 3,691 3,799 3,681 3,577 3,695 3,808 3,875 3,972 4,171 4,116
  1990's 4,316 4,496 4,884 4,929 5,226 4,881 4,669 4,797 4,779 4,276
  2000's 4,350 4,620 4,384 4,611 4,701 5,630 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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