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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
225 334 222 258 355 349 1981-2020
Adjustments
-23 179 -30 46 138 141 1981-2020
Revision Increases
21 19 14 28 88 22 1981-2020
Revision Decreases
55 32 49 3 84 122 1981-2020
Sales
12 1 4 0 0 6 2000-2020
Acquisitions
6 0 0 0 0 0 2000-2020
Extensions and Discoveries
  0 0 0 0 0 2016-2020
Extensions
1 -- -- -- -- -- 1981-2020
New Field Discoveries
0 -- -- -- -- -- 1981-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1981-2020
Estimated Production
40 56 43 35 45 41 1981-2020
- = 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