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Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2014 2015 2016 2017 2018 2019 View
History
Proved Reserves as of Dec. 31
388,841 324,303 341,133 464,292 504,501 494,911 1979-2019
Adjustments
4,905 9,430 7,086 19,326 8,770 -9,794 1979-2019
Revision Increases
55,328 38,995 56,800 72,947 41,466 52,719 1979-2019
Revision Decreases
54,344 119,757 56,706 31,629 69,153 87,998 1979-2019
Sales
21,729 14,682 19,566 24,916 24,875 18,692 2000-2019
Acquisitions
28,294 16,099 19,998 47,039 38,621 34,863 2000-2019
Extensions and Discoveries
    38,371 70,783 79,457 56,724 2016-2019
Extensions
47,071 32,940 -- -- -- -- 1979-2019
New Field Discoveries
671 31 -- -- -- -- 1979-2019
New Reservoir Discoveries in Old Fields
2,745 1,735 -- -- -- -- 1979-2019
Estimated Production
28,094 29,329 29,153 30,391 34,077 37,412 1979-2019
- = 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: 1/11/2021
Next Release Date: 12/20/2021