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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
1,663 1,611 1,362 1,123 1,136 1,324 1977-2018
Adjustments
103 -9 -27 -20 14 28 1977-2018
Revision Increases
159 72 15 33 98 7 1977-2018
Revision Decreases
58 46 193 76 27 50 1977-2018
Sales
1 0 0 99 2 914 2000-2018
Acquisitions
1 0 37 0 0 1,215 2000-2018
Extensions and Discoveries
      0 0 0 2016-2018
Extensions
132 0 0 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
0 1 0 -- -- -- 1977-2018
Estimated Production
81 70 81 77 70 98 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