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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
28,486 31,712 35,491 37,035 32,527 27,227 1977-2020
Adjustments
199 389 1,958 2,906 5 3,246 1977-2020
Revision Increases
3,384 4,629 3,629 2,714 8,115 2,768 1977-2020
Revision Decreases
8,391 2,981 4,843 8,021 14,237 10,608 1977-2020
Sales
1,136 2,652 1,078 1,390 3,341 1,266 2000-2020
Acquisitions
1,791 1,976 1,715 324 4,006 2,016 2000-2020
Extensions and Discoveries
  3,926 4,687 7,677 3,747 999 2016-2020
Extensions
2,931 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
1 -- -- -- -- -- 1977-2020
Estimated Production
2,071 2,061 2,289 2,666 2,803 2,446 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: 1/11/2021
Next Release Date: 12/20/2021