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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
6,482 6,890 5,909 5,338 5,372 5,442 1981-2018
Adjustments
76 548 -347 213 232 130 1981-2018
Revision Increases
1,017 1,299 1,059 910 1,104 826 1981-2018
Revision Decreases
789 1,234 1,099 786 657 363 1981-2018
Sales
850 294 235 276 53 176 2000-2018
Acquisitions
363 364 365 117 43 228 2000-2018
Extensions and Discoveries
      153 200 207 2016-2018
Extensions
175 161 139 -- -- -- 1981-2018
New Field Discoveries
84 378 29 -- -- -- 1981-2018
New Reservoir Discoveries in Old Fields
56 68 29 -- -- -- 1981-2018
Estimated Production
941 882 921 902 835 782 1981-2018
- = 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