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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
3,201 7,193 12,866 15,945 27,021 24,398 1979-2018
Adjustments
-319 -274 889 97 180 1,015 1979-2018
Revision Increases
537 1,656 2,513 3,219 7,649 2,803 1979-2018
Revision Decreases
160 1,594 1,655 2,701 2,048 9,316 1979-2018
Sales
12 22 1,495 275 1,305 4,388 2000-2018
Acquisitions
0 42 1,409 0 2,918 7,218 2000-2018
Extensions and Discoveries
      4,174 5,475 2,426 2016-2018
Extensions
1,802 3,432 3,435 -- -- -- 1979-2018
New Field Discoveries
17 1 0 -- -- -- 1979-2018
New Reservoir Discoveries in Old Fields
269 1,261 1,582 -- -- -- 1979-2018
Estimated Production
168 510 1,005 1,435 1,793 2,381 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