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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2014 2015 2016 2017 2018 2019 View
History
Proved Reserves as of Dec. 31
8,791 7,536 6,843 7,312 7,425 6,034 1977-2019
Adjustments
248 93 -897 -224 445 -302 1977-2019
Revision Increases
793 297 793 1,104 202 277 1977-2019
Revision Decreases
1,036 1,227 455 190 212 498 1977-2019
Sales
139 225 1 85 719 617 2000-2019
Acquisitions
0 381 366 276 555 109 2000-2019
Extensions and Discoveries
    1 31 292 22 2016-2019
Extensions
346 19 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
0 0 -- -- -- -- 1977-2019
Estimated Production
616 593 500 443 450 382 1977-2019
- = 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