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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
2,176 2,638 3,216 3,292 4,083 4,692 1977-2015
Changes in Reserves During Year
             
Adjustments (+,-)
-90 74 68 34 7 206 1977-2015
Revision Increases (+)
222 285 386 378 923 1,167 1977-2015
Revision Decreases (-)
143 198 322 442 549 1,218 1977-2015
Sales (-)
115 119 77 283 230 94 2000-2015
Acquisitions (+)
299 243 238 257 302 321 2000-2015
Extensions (+)
166 326 480 342 596 547 1977-2015
New Field Discoveries (+)
0 2 3 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields (+)
1 0 2 11 16 14 1977-2015
Estimated Production (-)
120 151 200 221 274 334 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