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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
20,553 23,025 32,785 35,001 36,600 35,247 1977-2020
Adjustments
1,511 -172 137 -263 62 -855 1977-2020
Revision Increases
838 1,885 2,088 1,852 2,084 1,309 1977-2020
Revision Decreases
13,515 4,619 4,194 6,206 6,837 6,562 1977-2020
Sales
799 913 1,170 1,023 346 430 2000-2020
Acquisitions
696 995 1,877 1,323 397 833 2000-2020
Extensions and Discoveries
  6,599 12,486 8,145 8,189 6,701 2016-2020
Extensions
3,626 -- -- -- -- -- 1977-2020
New Field Discoveries
0 -- -- -- -- -- 1977-2020
New Reservoir Discoveries in Old Fields
2 -- -- -- -- -- 1977-2020
Estimated Production
1,238 1,303 1,464 1,612 1,950 2,349 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