View History:  Annual  
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Montana Nonassociated Natural Gas, Wet After Lease Separation, Reserves Adjustments (Billion Cubic Feet)
Montana Nonassociated Natural Gas, Wet After Lease Separation, 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
  1970's -68
  1980's 550 56 -430 51 -58 52 -67 -22 77 -73
  1990's 14 -12 56 -151 137 -5 20 36 -13 42
  2000's 10 48 49 -21 -55 8 12 10 -10 56
  2010's 16 -25 46


- = 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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