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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
402 327 225 334 222 258 1981-2018
Adjustments
-83 -51 -23 179 -30 46 1981-2018
Revision Increases
72 12 21 19 14 28 1981-2018
Revision Decreases
47 51 55 32 49 3 1981-2018
Sales
4 3 12 1 4 0 2000-2018
Acquisitions
0 20 6 0 0 0 2000-2018
Extensions and Discoveries
      0 0 0 2016-2018
Extensions
12 17 1 -- -- -- 1981-2018
New Field Discoveries
16 25 0 -- -- -- 1981-2018
New Reservoir Discoveries in Old Fields
0 8 0 -- -- -- 1981-2018
Estimated Production
66 52 40 56 43 35 1981-2018
- = 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