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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2015 2016 2017 2018 2019 2020 View
History
Proved Reserves as of Dec. 31
223 193 187 194 150 98 1977-2020
Adjustments
-14 24 -10 19 -46 9 1977-2020
Revision Increases
10 3 32 18 39 6 1977-2020
Revision Decreases
32 39 22 16 29 58 1977-2020
Sales
0 8 0 10 0 0 2000-2020
Acquisitions
0 0 0 0 0 0 2000-2020
Extensions and Discoveries
  3 3 4 3 0 2016-2020
Extensions
10 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1977-2020
Estimated Production
12 13 9 8 11 9 1977-2020
- = 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: 1/13/2022
Next Release Date: 12/30/2022