View History:  Annual  
Download Data (XLS File)
Montana Crude Oil Reserves Revision Increases (Million Barrels)
Montana Crude Oil Reserves Revision Increases (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 13 17 26
  1980's 36 28 62 28 20 51 65 44 20 19
  1990's 27 18 13 8 15 21 10 8 30 136
  2000's 23 8 22 15 54 24 29 37 6 72
  2010's 54 54 19


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 1/30/2015
Next Release Date: 1/29/2016

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