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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
1,252 1,420 1,436 1,425 1,190 1,597 1977-2021
Adjustments
230 -35 -54 -3 137 25 1977-2021
Revision Increases
161 384 201 125 9 424 1977-2021
Revision Decreases
168 61 34 92 198 3 1977-2021
Divestitures
2 92 14 9 79 13 2000-2021
Acquisitions
39 10 4 60 15 15 2000-2021
Extensions and Discoveries
8 78 36 32 3 79 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
119 116 123 124 122 120 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