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Dry Natural Gas Proved Reserves
(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
1,845 1,386 1,286 1,489 1,490 1,245 1977-2019
Adjustments
-47 -286 413 255 171 -17 1977-2019
Revision Increases
290 149 153 66 78 46 1977-2019
Revision Decreases
90 221 410 73 34 110 1977-2019
Sales
1 14 155 2 126 352 2000-2019
Acquisitions
8 0 0 53 0 274 2000-2019
Extensions and Discoveries
    0 0 0 3 2016-2019
Extensions
1 0 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
1 0 -- -- -- -- 1977-2019
Estimated Production
124 87 101 96 88 89 1977-2019
- = 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