View History:  Annual  
Download Data (XLS File)
Montana Crude Oil Reserves Adjustments (Million Barrels)
Montana Crude Oil Reserves Adjustments (Million Barrels)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  1970's 0 2 -10
  1980's 6 0 -2 12 -1 -9 7 -19 7 4
  1990's -4 0 8 -7 7 5 -8 -2 -11 -5
  2000's 13 16 0 -6 -5 -1 1 5 10 21
  2010's -4 3 -9


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 8/1/2013
Next Release Date: 8/1/2014

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