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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
1,508 1,445 1,186 812 568 652 1981-2018
Adjustments
117 96 -34 -245 16 57 1981-2018
Revision Increases
303 1,017 320 259 138 116 1981-2018
Revision Decreases
163 1,025 426 183 169 62 1981-2018
Sales
177 37 9 15 84 0 2000-2018
Acquisitions
72 69 83 0 0 0 2000-2018
Extensions and Discoveries
      21 2 117 2016-2018
Extensions
87 45 37 -- -- -- 1981-2018
New Field Discoveries
0 0 0 -- -- -- 1981-2018
New Reservoir Discoveries in Old Fields
18 26 30 -- -- -- 1981-2018
Estimated Production
246 254 260 211 147 144 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