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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
692 569 611 593 613 555 1977-2020
Adjustments
137 -116 18 43 90 -29 1977-2020
Revision Increases
33 89 73 51 1 156 1977-2020
Revision Decreases
88 43 5 62 65 145 1977-2020
Sales
128 46 1 8 1 0 2000-2020
Acquisitions
127 43 0 0 5 0 2000-2020
Extensions and Discoveries
  1 4 3 37 1 2016-2020
Extensions
3 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1977-2020
Estimated Production
59 51 47 45 47 41 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