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Natural Gas Proved Reserves, Wet After Lease Separation
(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
7,504 10,124 10,292 8,952 9,239 11,264 1979-2021
Adjustments
33 64 -348 -1,048 852 448 1979-2021
Revision Increases
2,867 492 436 284 527 2,111 1979-2021
Revision Decreases
4,523 627 362 703 98 244 1979-2021
Divestitures
93 4,304 557 138 965 0 2000-2021
Acquisitions
283 7,431 1,394 0 317 0 2000-2021
Extensions and Discoveries
225 165 192 818 178 184 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
648 601 587 553 524 474 1979-2021
- = 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