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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
1,807 1,845 1,386 1,286 1,489 1,490 1977-2018
Adjustments
-62 -47 -286 413 255 171 1977-2018
Revision Increases
388 290 149 153 66 78 1977-2018
Revision Decreases
139 90 221 410 73 34 1977-2018
Sales
11 1 14 155 2 126 2000-2018
Acquisitions
11 8 0 0 53 0 2000-2018
Extensions and Discoveries
      0 0 0 2016-2018
Extensions
0 1 0 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
3 1 0 -- -- -- 1977-2018
Estimated Production
133 124 87 101 96 88 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