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| North Dakota 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 | 7 | 10 | 4 | |||||||
| 1980's | 15 | 20 | 26 | 43 | 26 | 19 | 36 | 21 | 27 | 22 |
| 1990's | 18 | 20 | 21 | 19 | 24 | 10 | 19 | 15 | 21 | 31 |
| 2000's | 14 | 22 | 13 | 24 | 115 | 16 | 30 | 28 | 111 | 68 |
| 2010's | 474 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 8/2/2012 |
| Next Release Date: 8/30/2013 |