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Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2015 2016 2017 2018 2019 2020 View
History
Proved Reserves as of Dec. 31
2,914 2,704 2,472 2,278 2,056 1,925 1979-2020
Adjustments
416 -99 -40 -93 -20 14 1979-2020
Revision Increases
86 329 200 89 25 69 1979-2020
Revision Decreases
1,300 229 126 26 89 69 1979-2020
Sales
3 327 498 5 750 0 2000-2020
Acquisitions
0 321 412 0 762 0 2000-2020
Extensions and Discoveries
  0 0 0 1 0 2016-2020
Extensions
14 -- -- -- -- -- 1979-2020
New Field Discoveries
0 -- -- -- -- -- 1979-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1979-2020
Estimated Production
248 205 180 159 151 145 1979-2020
- = 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: 1/13/2022
Next Release Date: 12/30/2022