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Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2013 2014 2015 2016 2017 2018 View
History
Proved Reserves as of Dec. 31
12,192 12,023 9,846 7,351 15,513 25,690 1979-2018
Adjustments
269 -310 566 -205 3,889 2,274 1979-2018
Revision Increases
2,185 2,066 1,009 1,662 4,640 5,123 1979-2018
Revision Decreases
1,468 1,229 3,732 2,080 916 1,262 1979-2018
Sales
449 879 569 1,875 465 202 2000-2018
Acquisitions
598 642 980 851 1,291 1,330 2000-2018
Extensions and Discoveries
      86 600 3,944 2016-2018
Extensions
428 587 573 -- -- -- 1979-2018
New Field Discoveries
0 0 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
8 0 0 -- -- -- 1979-2018
Estimated Production
1,105 1,046 1,004 934 877 1,030 1979-2018
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: W -- Individual state volumes are withheld to avoid disclosure of operator-level reserves data, due to statistical precision requirements, or due to other data quality reasons. The individual state volumes are included in the U.S. Total volume.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/12/2019
Next Release Date: 11/20/2020