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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
1,795 1,760 1,520 1,424 1,879 1,729 1979-2018
Adjustments
-99 52 46 61 -66 -16 1979-2018
Revision Increases
335 290 167 119 514 270 1979-2018
Revision Decreases
215 228 308 174 43 461 1979-2018
Sales
87 143 19 104 47 101 2000-2018
Acquisitions
86 131 19 165 97 191 2000-2018
Extensions and Discoveries
      62 190 162 2016-2018
Extensions
86 97 102 -- -- -- 1979-2018
New Field Discoveries
0 18 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
8 23 12 -- -- -- 1979-2018
Estimated Production
284 275 259 225 190 195 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