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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of 12/31
1,814 2,649 3,761 5,677 6,043 5,193 1977-2015
Changes in Reserves During Year
             
Adjustments (+,-)
-8 9 33 -49 -69 218 1977-2015
Revision Increases (+)
672 677 740 991 683 374 1977-2015
Revision Decreases (-)
474 494 369 642 864 1,381 1977-2015
Sales (-)
63 124 236 44 567 306 2000-2015
Acquisitions (+)
190 224 218 353 310 62 2000-2015
Extensions (+)
532 665 940 1,603 1,234 605 1977-2015
New Field Discoveries (+)
29 14 9 4 3 0 1977-2015
New Reservoir Discoveries in Old Fields (+)
3 16 27 13 30 6 1977-2015
Estimated Production (-)
113 152 250 313 394 428 1977-2015
- = 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: 12/14/2016
Next Release Date: 11/30/2017