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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
4,177 4,775 4,817 4,558 4,085 5,397 1977-2021
Adjustments
308 58 256 225 186 134 1977-2021
Revision Increases
778 548 228 232 493 1,667 1977-2021
Revision Decreases
1,568 227 558 503 1,096 567 1977-2021
Divestitures
288 100 179 682 3 72 2000-2021
Acquisitions
268 149 249 456 0 197 2000-2021
Extensions and Discoveries
787 743 671 692 549 516 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
644 573 625 679 602 563 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