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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
6,559 4,536 4,177 4,775 4,817 4,558 1977-2019
Adjustments
-84 -107 308 58 256 225 1977-2019
Revision Increases
633 745 778 548 228 232 1977-2019
Revision Decreases
732 2,638 1,568 227 558 503 1977-2019
Sales
1,327 53 288 100 179 682 2000-2019
Acquisitions
1,267 79 268 149 249 456 2000-2019
Extensions and Discoveries
    787 743 671 692 2016-2019
Extensions
1,462 724 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
103 0 -- -- -- -- 1977-2019
Estimated Production
673 773 644 573 625 679 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