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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
50,078 60,443 56,524 62,656 90,788 104,943 1979-2018
Adjustments
769 1,347 3,229 -616 -679 3,962 1979-2018
Revision Increases
7,224 8,715 11,021 8,086 13,218 4,440 1979-2018
Revision Decreases
7,186 7,524 23,494 5,879 2,959 14,803 1979-2018
Sales
104 509 321 1,747 5,640 172 2000-2018
Acquisitions
354 1,307 271 772 8,080 4,675 2000-2018
Extensions and Discoveries
      10,720 21,584 22,263 2016-2018
Extensions
15,671 11,252 10,168 -- -- -- 1979-2018
New Field Discoveries
36 8 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
80 6 14 -- -- -- 1979-2018
Estimated Production
3,309 4,237 4,807 5,204 5,472 6,210 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