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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
2,036 2,182 1,791 1,510 1,262 1,387 1977-2019
Adjustments
502 305 -104 159 -97 -24 1977-2019
Revision Increases
140 199 228 82 79 93 1977-2019
Revision Decreases
41 196 385 78 46 56 1977-2019
Sales
2 175 43 475 82 305 2000-2019
Acquisitions
0 175 37 163 27 531 2000-2019
Extensions and Discoveries
    17 17 0 6 2016-2019
Extensions
2 0 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
14 0 -- -- -- -- 1977-2019
Estimated Production
176 162 141 149 129 120 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