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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
6,640 7,524 5,249 4,965 5,804 5,853 1979-2018
Adjustments
-95 43 -58 507 182 311 1979-2018
Revision Increases
1,107 726 862 925 666 277 1979-2018
Revision Decreases
1,642 840 3,053 1,864 276 678 1979-2018
Sales
416 1,522 61 342 121 218 2000-2018
Acquisitions
479 1,454 91 319 181 302 2000-2018
Extensions and Discoveries
      936 903 815 2016-2018
Extensions
1,792 1,677 838 -- -- -- 1979-2018
New Field Discoveries
0 0 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
30 118 0 -- -- -- 1979-2018
Estimated Production
600 772 894 765 696 760 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