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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2004 2005 2006 2007 2008 2009 View
History
Proved Reserves as of 12/31
187 205 202 209 137 164 1977-2009
Changes in Reserves During Year
             
Adjustments (+,-)
0 0 0 1 -1 2 1977-2009
Revision Increases (+)
33 44 23 20 4 32 1977-2009
Revision Decreases (-)
4 13 16 5 75 0 1977-2009
Sales (-)
17 0 0 3 0 0 2000-2009
Acquisitions (+)
15 0 0 0 0 0 2000-2009
Extensions (+)
2 2 5 9 14 7 1977-2009
New Field Discoveries (+)
0 0 0 0 0 0 1977-2009
New Reservoir Discoveries in Old Fields (+)
0 0 0 0 0 0 1977-2009
Estimated Production (-)
15 15 15 15 14 14 1977-2009
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous includes Arizona, Missouri, Nevada, New York, South Dakota, Tennessee, and Virginia. The production estimates in this table are based on data reported on Form EIA-23, "Annual Survey of Domestic Oil and Gas Reserves." They many differ from the official Energy Information Administration production data for crude oil contained in the "Petroleum Supply Annual."  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/30/2010
Next Release Date: 12/30/2011