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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
5,420 6,034 6,203 7,030 8,445 10,166 1977-2018
Adjustments
-208 -31 74 -261 -144 588 1977-2018
Revision Increases
1,096 861 1,131 1,519 1,431 1,025 1977-2018
Revision Decreases
640 777 1,164 329 271 409 1977-2018
Sales
13 557 152 224 196 96 2000-2018
Acquisitions
384 322 43 136 2 75 2000-2018
Extensions and Discoveries
      483 1,161 1,258 2016-2018
Extensions
1,523 1,161 719 -- -- -- 1977-2018
New Field Discoveries
1 4 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
10 37 5 -- -- -- 1977-2018
Estimated Production
302 406 487 497 568 720 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