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Dry Natural Gas Proved Reserves
(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
7,057 14,840 24,751 21,982 20,233 26,603 1977-2021
Adjustments
-192 3,696 2,296 -554 395 -522 1977-2021
Revision Increases
1,596 4,439 4,936 2,739 2,016 7,022 1977-2021
Revision Decreases
1,996 877 1,216 7,341 4,107 647 1977-2021
Divestitures
1,800 445 195 456 5 88 2000-2021
Acquisitions
817 1,235 1,282 1,123 46 810 2000-2021
Extensions and Discoveries
82 574 3,800 3,072 1,359 1,554 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
897 839 992 1,352 1,453 1,759 1977-2021
- = 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