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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
10,965 12,750 10,558 8,470 6,685 7,392 1977-2021
Adjustments
868 -339 -301 -868 56 -14 1977-2021
Revision Increases
723 642 115 80 167 1,456 1977-2021
Revision Decreases
1,812 853 1,496 976 1,257 124 1977-2021
Divestitures
2,593 341 1,478 279 340 395 2000-2021
Acquisitions
2,364 3,044 1,250 567 255 371 2000-2021
Extensions and Discoveries
57 565 595 159 14 20 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
1,069 933 877 771 680 607 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