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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
12,789 8,339 7,416 8,267 6,740 5,834 1977-2019
Adjustments
-3 288 112 -64 -257 36 1977-2019
Revision Increases
171 231 268 869 82 77 1977-2019
Revision Decreases
1,094 4,279 534 118 193 551 1977-2019
Sales
248 188 9 8 5,848 195 2000-2019
Acquisitions
80 269 0 0 5,276 262 2000-2019
Extensions and Discoveries
    63 869 7 0 2016-2019
Extensions
1,505 242 -- -- -- -- 1977-2019
New Field Discoveries
0 0 -- -- -- -- 1977-2019
New Reservoir Discoveries in Old Fields
2 2 -- -- -- -- 1977-2019
Estimated Production
1,142 1,015 823 697 594 535 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