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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
21,533 22,352 22,305 18,325 13,126 15,778 1979-2021
Adjustments
774 1,076 -1,952 -191 -1 -276 1979-2021
Revision Increases
1,380 3,498 1,349 660 916 2,346 1979-2021
Revision Decreases
1,104 1,404 1,138 3,490 5,119 132 1979-2021
Divestitures
571 3,060 343 42 20 662 2000-2021
Acquisitions
867 1,744 2,736 53 29 2,131 2000-2021
Extensions and Discoveries
901 685 802 364 149 342 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
1,722 1,720 1,501 1,334 1,153 1,097 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