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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
2016 2017 2018 2019 2020 2021 View
History
Proved Reserves as of Dec. 31
1,587 1,845 1,247 1,020 880 867 1979-2021
Adjustments
-139 236 -404 -81 185 -54 1979-2021
Revision Increases
160 287 70 40 38 134 1979-2021
Revision Decreases
415 257 186 169 448 42 1979-2021
Divestitures
89 24 30 37 47 0 2000-2021
Acquisitions
44 141 4 105 200 0 2000-2021
Extensions and Discoveries
159 73 102 42 50 38 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
194 198 154 127 118 89 1979-2021
- = 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: 12/30/2022
Next Release Date: 12/29/2023