View History:  Annual  
Download Data (XLS File)
Montana Crude Oil Proved Reserves (Million Barrels)
Montana Crude Oil Proved Reserves (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 175 158 152
  1980's 179 186 216 234 224 232 248 246 241 225
  1990's 221 201 193 171 175 178 168 159 167 207
  2000's 235 260 288 315 364 427 419 410 321 343
  2010's 369 384 386 413 444 326 285 302 279 298
  2020's 256 316


- = 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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