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U.S. Crude Oil, Natural Gas, and Dry Exploratory and Developmental Wells Drilled (Number of Elements)
U.S. Crude Oil, Natural Gas, and Dry Exploratory and Developmental Wells Drilled (Number of Elements)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  1940's 37,312
  1950's 42,050 43,643 44,563 47,740 51,109 55,150 57,170 51,995 46,941 47,563
  1960's 45,619 44,254 44,158 41,467 42,293 38,773 36,384 32,234 30,599 32,187
  1970's 28,010 26,133 27,709 27,420 32,901 38,721 40,855 45,852 50,145 52,204
  1980's 71,205 92,090 84,914 76,405 86,128 70,796 40,611 35,473 32,343 27,988
  1990's 32,067 29,528 23,608 25,451 22,255 21,600 23,886 27,586 22,911 18,939
  2000's 29,064 35,334 27,693 32,612 36,728 43,569 50,853 50,788 55,625

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 6/5/2009
Next Release Date: 7/3/2009

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