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Nonassociated 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
6,469 7,101 6,947 5,648 4,419 6,295 1979-2021
Adjustments
-852 -219 190 28 65 -156 1979-2021
Revision Increases
734 1,203 178 137 718 2,369 1979-2021
Revision Decreases
356 206 184 525 1,035 119 1979-2021
Divestitures
1 95 759 696 2,789 81 2000-2021
Acquisitions
318 309 483 75 2,129 204 2000-2021
Extensions and Discoveries
0 33 321 25 0 0 2016-2021
Extensions
-- -- -- -- -- -- 1979-2021
New Field Discoveries
-- -- -- -- -- -- 1979-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 1979-2021
Estimated Production
449 393 383 343 317 341 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