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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
575 667 692 569 611 593 1977-2018
Adjustments
3 39 137 -116 18 43 1977-2018
Revision Increases
113 89 33 89 73 51 1977-2018
Revision Decreases
49 54 88 43 5 62 1977-2018
Sales
72 2 128 46 1 8 2000-2018
Acquisitions
4 1 127 43 0 0 2000-2018
Extensions and Discoveries
      1 4 3 2016-2018
Extensions
36 77 3 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
0 0 0 -- -- -- 1977-2018
Estimated Production
62 58 59 51 47 45 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