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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
15,647 26,793 23,942 34,255 27,698 31,697 1979-2021
Adjustments
50 117 970 -839 -2,878 205 1979-2021
Revision Increases
3,142 7,575 2,554 7,911 2,424 5,679 1979-2021
Revision Decreases
2,499 1,877 9,287 4,031 7,211 3,317 1979-2021
Divestitures
275 1,254 4,358 16 37 48 2000-2021
Acquisitions
0 2,883 7,198 8,183 2,598 349 2000-2021
Extensions and Discoveries
4,167 5,475 2,426 1,681 887 3,365 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
1,412 1,773 2,354 2,576 2,340 2,234 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