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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
3,494 3,752 3,213 2,279 2,296 3,638 1977-2021
Adjustments
144 -251 56 230 66 211 1977-2021
Revision Increases
426 819 211 50 297 1,207 1977-2021
Revision Decreases
342 268 130 962 519 28 1977-2021
Divestitures
73 129 677 1,083 783 0 2000-2021
Acquisitions
0 270 5 1,071 1,082 5 2000-2021
Extensions and Discoveries
142 118 282 25 110 181 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
350 301 286 265 236 234 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