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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
22,381 20,851 17,139 17,761 26,573 24,114 1977-2018
Adjustments
-272 627 -345 2,832 4,073 -48 1977-2018
Revision Increases
4,110 3,461 1,740 2,774 2,900 2,712 1977-2018
Revision Decreases
2,329 5,007 4,555 2,912 1,769 4,743 1977-2018
Sales
584 693 198 2,795 1,402 911 2000-2018
Acquisitions
953 567 354 1,670 4,836 880 2000-2018
Extensions and Discoveries
      604 1,746 1,321 2016-2018
Extensions
1,352 1,070 874 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
12 6 0 -- -- -- 1977-2018
Estimated Production
1,527 1,561 1,582 1,551 1,572 1,670 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