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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
4,359 3,183 2,821 2,654 2,449 2,125 1977-2019
Adjustments
94 396 -213 33 14 -35 1977-2019
Revision Increases
575 230 368 236 87 32 1977-2019
Revision Decreases
218 1,589 308 166 124 129 1977-2019
Sales
1,092 6 304 457 4 771 2000-2019
Acquisitions
1,409 0 311 378 0 742 2000-2019
Extensions and Discoveries
    0 1 0 1 2016-2019
Extensions
271 62 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
0 0 -- -- -- -- 1977-2019
Estimated Production
272 269 216 192 178 164 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