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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
49,674 59,873 55,894 61,841 89,589 103,460 1977-2018
Adjustments
664 1,266 3,089 -713 -682 3,820 1977-2018
Revision Increases
7,166 8,633 10,899 7,981 13,043 4,377 1977-2018
Revision Decreases
7,128 7,453 23,233 5,803 2,920 14,593 1977-2018
Sales
103 504 318 1,724 5,566 169 2000-2018
Acquisitions
351 1,295 268 762 7,973 4,609 2000-2018
Extensions and Discoveries
      10,580 21,299 21,949 2016-2018
Extensions
15,544 11,146 10,055 -- -- -- 1977-2018
New Field Discoveries
36 7 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
79 6 14 -- -- -- 1977-2018
Estimated Production
3,283 4,197 4,753 5,136 5,399 6,122 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