View History:  Annual  
Download Data (XLS File)
Montana Shale Proved Reserves Adjustments (Billion Cubic Feet)
Montana Shale Proved Reserves Adjustments (Billion Cubic Feet)
Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9
  2000's 8
  2010's 40 14 -7 -4 196 -31 -139 3 20 53
  2020's -14 -1


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 12/30/2022
Next Release Date: 12/29/2023

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