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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
17,116 19,545 22,728 27,193 30,473 33,530 1977-2014
Changes in Reserves During Year
             
Adjustments (+,-)
-4 144 199 110 -621 515 1977-2014
Revision Increases (+)
2,483 3,032 4,248 4,235 3,943 5,077 1977-2014
Revision Decreases (-)
862 1,494 3,101 2,933 3,120 4,798 1977-2014
Sales (-)
205 725 791 734 1,327 2,032 2000-2014
Acquisitions (+)
307 1,330 1,209 1,150 1,785 2,234 2000-2014
Extensions (+)
1,130 1,465 2,531 4,403 4,361 4,395 1977-2014
New Field Discoveries (+)
113 88 477 53 188 151 1977-2014
New Reservoir Discoveries in Old Fields (+)
81 161 59 122 319 207 1977-2014
Estimated Production (-)
1,541 1,572 1,648 1,941 2,248 2,692 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