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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
1,460 1,690 1,490 1,025 1,273 1,141 1977-2018
Adjustments
-55 10 352 -344 129 -65 1977-2018
Revision Increases
223 579 55 111 262 86 1977-2018
Revision Decreases
84 200 511 121 90 87 1977-2018
Sales
35 1,083 1 15 0 2 2000-2018
Acquisitions
25 1,074 12 0 0 11 2000-2018
Extensions and Discoveries
      30 69 33 2016-2018
Extensions
1 0 69 -- -- -- 1977-2018
New Field Discoveries
0 0 0 -- -- -- 1977-2018
New Reservoir Discoveries in Old Fields
0 0 0 -- -- -- 1977-2018
Estimated Production
165 150 176 126 122 108 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