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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
27,553 20,436 20,818 21,549 21,343 17,569 1977-2019
Adjustments
-1,877 1,988 622 978 -2,027 -142 1977-2019
Revision Increases
2,235 885 1,335 3,373 1,290 633 1977-2019
Revision Decreases
6,530 7,628 1,067 1,354 1,089 3,346 1977-2019
Sales
3,098 1,153 552 2,950 329 40 2000-2019
Acquisitions
4,157 25 838 1,681 2,618 51 2000-2019
Extensions and Discoveries
    871 661 767 349 2016-2019
Extensions
766 500 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
0 0 -- -- -- -- 1977-2019
Estimated Production
1,718 1,734 1,665 1,658 1,436 1,279 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