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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
3,159 3,835 6,141 4,563 3,090 5,663 1979-2021
Adjustments
179 -10 308 40 291 119 1979-2021
Revision Increases
610 275 521 17 132 2,585 1979-2021
Revision Decreases
4,134 388 574 1,687 1,646 70 1979-2021
Divestitures
17 651 422 69 35 3 2000-2021
Acquisitions
35 1,166 866 247 106 26 2000-2021
Extensions and Discoveries
388 588 1,951 195 5 210 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
302 304 344 321 326 294 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