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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
7,536 6,843 7,312 7,425 6,034 4,563 1977-2020
Adjustments
93 -897 -224 445 -302 183 1977-2020
Revision Increases
297 793 1,104 202 277 676 1977-2020
Revision Decreases
1,227 455 190 212 498 1,400 1977-2020
Sales
225 1 85 719 617 2,465 2000-2020
Acquisitions
381 366 276 555 109 1,880 2000-2020
Extensions and Discoveries
  1 31 292 22 0 2016-2020
Extensions
19 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1977-2020
Estimated Production
593 500 443 450 382 345 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