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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
4,959 6,159 7,490 7,612 7,702 7,125 1977-2020
Adjustments
-520 220 45 -660 144 -584 1977-2020
Revision Increases
755 1,179 1,132 1,282 874 1,284 1977-2020
Revision Decreases
1,954 543 1,020 767 1,474 1,170 1977-2020
Sales
6 509 72 336 146 46 2000-2020
Acquisitions
13 574 364 201 79 224 2000-2020
Extensions and Discoveries
  768 1,407 1,001 1,314 438 2016-2020
Extensions
711 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 1977-2020
Estimated Production
462 489 525 599 701 725 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