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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
20,818 21,549 21,343 17,569 12,484 15,005 1977-2021
Adjustments
622 978 -2,027 -142 -140 -263 1977-2021
Revision Increases
1,335 3,373 1,290 633 871 2,231 1977-2021
Revision Decreases
1,067 1,354 1,089 3,346 4,869 125 1977-2021
Divestitures
552 2,950 329 40 19 630 2000-2021
Acquisitions
838 1,681 2,618 51 28 2,026 2000-2021
Extensions and Discoveries
871 661 767 349 141 325 2016-2021
Extensions
-- -- -- -- -- -- 1977-2021
New Field Discoveries
-- -- -- -- -- -- 1977-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1977-2021
Estimated Production
1,665 1,658 1,436 1,279 1,097 1,043 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: NA