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 View History:    Monthly     Annual   
Download Data (XLS File)
U.S. Crude Oil Rotary Rigs in Operation (Number of Elements)
U.S. Crude Oil Rotary Rigs in Operation (Number of Elements)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  1970's NA NA NA NA NA NA NA
  1980's NA NA NA NA NA NA NA NA 554 453
  1990's 532 482 373 373 335 323 306 376 264 128
  2000's 197 217 137 157 165 194 274 297

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 10/31/2008
Next Release Date: 11/28/2008

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