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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
2,290 1,487 1,672 1,860 1,779 1,196 1977-2019
Adjustments
-170 38 -49 -82 213 -32 1977-2019
Revision Increases
203 48 142 287 29 24 1977-2019
Revision Decreases
355 747 135 50 122 223 1977-2019
Sales
2 353 31 3 207 253 2000-2019
Acquisitions
0 348 391 165 142 5 2000-2019
Extensions and Discoveries
    2 0 0 0 2016-2019
Extensions
8 25 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
0 0 -- -- -- -- 1977-2019
Estimated Production
181 162 135 129 136 104 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