View History:  Annual  
Download Data (XLS File)
Montana Crude Oil Reserves Revision Decreases (Million Barrels)
Montana Crude Oil Reserves Revision Decreases (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 5 15 10
  1980's 9 15 14 14 21 15 34 12 14 19
  1990's 10 21 14 12 9 11 3 8 13 94
  2000's 15 19 9 8 32 23 35 35 93 47
  2010's 44 51 38


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 4/10/2014
Next Release Date: 4/30/2015

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