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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2009 2010 2011 2012 2013 2014 View
History
Proved Reserves as of 12/31
2,835 2,938 3,005 2,974 2,876 2,854 1977-2014
Changes in Reserves During Year
             
Adjustments (+,-)
-17 13 32 9 -51 15 1977-2014
Revision Increases (+)
427 276 391 506 238 377 1977-2014
Revision Decreases (-)
119 167 230 389 116 246 1977-2014
Sales (-)
3 1 7 1 322 537 2000-2014
Acquisitions (+)
20 156 40 8 320 543 2000-2014
Extensions (+)
30 24 37 32 17 12 1977-2014
New Field Discoveries (+)
0 0 0 2 0 0 1977-2014
New Reservoir Discoveries in Old Fields (+)
0 0 0 0 15 16 1977-2014
Estimated Production (-)
208 198 196 198 199 202 1977-2014
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: The volumes in the table above are crude oil ONLY (aka Black Oil), excluding lease condensate. Miscellaneous includes Arizona, Idaho, 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 may 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: 11/19/2015
Next Release Date: 12/31/2016