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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
268,913 364,846 384,855 373,055 336,867 398,099 1979-2021
Adjustments
6,089 16,233 5,899 -6,320 3,099 -5,141 1979-2021
Revision Increases
41,737 54,884 27,968 39,290 22,268 52,933 1979-2021
Revision Decreases
44,569 24,677 56,918 69,355 68,450 25,902 1979-2021
Divestitures
17,018 22,619 21,492 12,097 13,785 6,425 2000-2021
Acquisitions
15,529 39,366 29,793 25,059 17,509 25,680 2000-2021
Extensions and Discoveries
31,064 55,927 60,202 38,875 29,752 47,329 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
22,726 23,181 25,443 27,252 26,663 27,242 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