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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2002 2003 2004 2005 2006 2007 View
History
Proved Reserves as of 12/31
5,015 4,583 4,613 4,919 4,871 5,122 1977-2007
Changes in Reserves During Year
             
Adjustments (+,-)
188 63 71 64 50 65 1977-2007
Revision Increases (+)
427 362 401 455 340 575 1977-2007
Revision Decreases (-)
232 178 261 229 312 241 1977-2007
Sales (-)
331 639 229 520 100 212 2000-2007
Acquisitions (+)
289 242 281 723 198 222 2000-2007
Extensions (+)
91 77 125 163 128 183 1977-2007
New Field Discoveries (+)
0 3 2 2 1 2 1977-2007
New Reservoir Discoveries in Old Fields (+)
7 2 0 3 2 7 1977-2007
Estimated Production (-)
368 364 360 355 355 350 1977-2007
- = 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: 2/10/2009
Next Release Date: 1/29/2010