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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
1,025 1,273 1,141 1,018 873 879 1977-2021
Adjustments
-344 129 -65 -39 102 -52 1977-2021
Revision Increases
111 262 86 140 62 162 1977-2021
Revision Decreases
121 90 87 196 219 29 1977-2021
Divestitures
15 0 2 1 2 0 2000-2021
Acquisitions
0 0 11 0 0 0 2000-2021
Extensions and Discoveries
30 69 33 76 40 9 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
126 122 108 103 128 84 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