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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
14,503 17,429 18,205 15,779 14,308 18,545 1977-2021
Adjustments
-87 141 -619 -434 1,483 110 1977-2021
Revision Increases
7,413 2,792 649 112 152 2,921 1977-2021
Revision Decreases
1,214 396 1,139 2,418 2,419 1,215 1977-2021
Divestitures
486 799 130 185 445 19 2000-2021
Acquisitions
434 1,668 11 114 392 297 2000-2021
Extensions and Discoveries
947 572 3,033 1,401 272 3,027 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
1,074 1,052 1,029 1,016 906 884 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