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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
11,038 12,291 8,775 14,795 17,917 18,707 1979-2018
Adjustments
803 -117 263 -141 154 -607 1979-2018
Revision Increases
1,007 1,651 732 7,572 2,873 594 1979-2018
Revision Decreases
1,693 872 4,863 1,247 338 1,158 1979-2018
Sales
477 570 1,349 501 797 133 2000-2018
Acquisitions
600 1,182 1,589 450 1,721 12 2000-2018
Extensions and Discoveries
      980 586 3,133 2016-2018
Extensions
2,264 938 1,141 -- -- -- 1979-2018
New Field Discoveries
0 2 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
1 21 0 -- -- -- 1979-2018
Estimated Production
934 982 1,029 1,093 1,077 1,051 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