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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
2,182 1,791 1,510 1,262 1,387 1,493 1977-2020
Adjustments
305 -104 159 -97 -24 180 1977-2020
Revision Increases
199 228 82 79 93 153 1977-2020
Revision Decreases
196 385 78 46 56 124 1977-2020
Sales
175 43 475 82 305 0 2000-2020
Acquisitions
175 37 163 27 531 9 2000-2020
Extensions and Discoveries
  17 17 0 6 0 2016-2020
Extensions
0 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1977-2020
Estimated Production
162 141 149 129 120 112 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