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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
1,832 1,977 1,537 1,505 1,596 2,552 1979-2018
Adjustments
-97 111 99 -4 -63 -108 1979-2018
Revision Increases
343 463 187 413 413 787 1979-2018
Revision Decreases
296 322 616 303 238 237 1979-2018
Sales
510 12 143 43 51 11 2000-2018
Acquisitions
286 12 158 48 55 54 2000-2018
Extensions and Discoveries
      27 164 688 2016-2018
Extensions
170 80 56 -- -- -- 1979-2018
New Field Discoveries
0 0 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
0 0 0 -- -- -- 1979-2018
Estimated Production
220 187 181 170 189 217 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