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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
23,025 32,785 35,001 36,600 35,247 43,023 1977-2021
Adjustments
-172 137 -263 62 -855 444 1977-2021
Revision Increases
1,885 2,088 1,852 2,084 1,309 2,204 1977-2021
Revision Decreases
4,619 4,194 6,206 6,837 6,562 2,521 1977-2021
Divestitures
913 1,170 1,023 346 430 565 2000-2021
Acquisitions
995 1,877 1,323 397 833 31 2000-2021
Extensions and Discoveries
6,599 12,486 8,145 8,189 6,701 10,630 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
1,303 1,464 1,612 1,950 2,349 2,447 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