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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2013 2014 2015 2016 2017 2018 View
History
Proved Reserves as of Dec. 31
1,887 2,107 1,832 1,340 1,560 1,451 1977-2018
Adjustments
-72 34 342 -277 84 -49 1977-2018
Revision Increases
256 612 83 144 314 129 1977-2018
Revision Decreases
103 241 595 200 115 104 1977-2018
Sales
70 1,155 1 35 15 16 2000-2018
Acquisitions
60 1,144 12 0 16 15 2000-2018
Extensions and Discoveries
      33 75 39 2016-2018
Extensions
3 0 84 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
2 2 0 -- -- -- 1977-2018
Estimated Production
188 176 200 157 139 123 1977-2018
- = 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: 12/12/2019
Next Release Date: 11/20/2020