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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
2,787 2,290 1,487 1,672 1,860 1,779 1977-2018
Adjustments
-162 -170 38 -49 -82 213 1977-2018
Revision Increases
405 203 48 142 287 29 1977-2018
Revision Decreases
223 355 747 135 50 122 1977-2018
Sales
18 2 353 31 3 207 2000-2018
Acquisitions
15 0 348 391 165 142 2000-2018
Extensions and Discoveries
      2 0 0 2016-2018
Extensions
2 8 25 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
53 0 0 -- -- -- 1977-2018
Estimated Production
228 181 162 135 129 136 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