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Dry Natural Gas Proved Reserves
(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
11,655 11,516 9,447 7,057 14,840 24,751 1977-2018
Adjustments
128 -272 562 -192 3,696 2,296 1977-2018
Revision Increases
2,089 1,979 969 1,596 4,439 4,936 1977-2018
Revision Decreases
1,404 1,178 3,581 1,996 877 1,216 1977-2018
Sales
429 842 546 1,800 445 195 2000-2018
Acquisitions
572 614 940 817 1,235 1,282 2000-2018
Extensions and Discoveries
      82 574 3,800 2016-2018
Extensions
409 562 550 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
7 0 0 -- -- -- 1977-2018
Estimated Production
1,057 1,002 963 897 839 992 1977-2018
- = 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