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Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation
(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
3,339 3,949 2,914 2,704 2,472 2,278 1979-2018
Adjustments
2 129 416 -99 -40 -93 1979-2018
Revision Increases
735 512 86 329 200 89 1979-2018
Revision Decreases
479 101 1,300 229 126 26 1979-2018
Sales
30 1,147 3 327 498 5 2000-2018
Acquisitions
9 1,466 0 321 412 0 2000-2018
Extensions and Discoveries
      0 0 0 2016-2018
Extensions
137 4 14 -- -- -- 1979-2018
New Field Discoveries
0 0 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
0 0 0 -- -- -- 1979-2018
Estimated Production
266 253 248 205 180 159 1979-2018
- = 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